WestJet flight WS 5421: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon 05:42 Columbia (CAE) 06:46 Atlanta (ATL) S
WS 5421 Non-stop Boeing 717 (717) 1:04 Operates only on 2025-05-26
Codeshare flight, operated by Delta Air Lines.(DL 2517)
Sat 07:00 Huntsville (HSV) 09:05 Atlanta (ATL) S
WS 5421 Non-stop Boeing 717 (717) 1:05 Effective 2025-11-15 through 2025-11-22
Codeshare flight, operated by Delta Air Lines.(DL 3009)
Wed 07:20 Boston Logan (BOS) A 09:18 Chicago O'Hare (ORD) 5
WS 5421 Non-stop Airbus A220-300 (223) 2:58 Operates only on 2025-07-02
Codeshare flight, operated by Delta Air Lines.(DL 2570)
Sun 07:25 Atlanta (ATL) S 09:13 Cleveland Hopkins (CLE)
WS 5421 Non-stop Airbus A320 (320) 1:48 Operates only on 2025-11-02
Codeshare flight, operated by Delta Air Lines.(DL 2523)
Mon-Wed 08:50 Winnipeg (YWG) 10:24 Minneapolis/Saint Paul (MSP) 1
WS 5421 Non-stop Embraer EMB 175 (E7W) 1:34 Effective 2025-11-03 through 2025-11-05
Codeshare flight, operated by Delta Air Lines.(DL 3526)
Sat 09:00 Augusta (AGS) 10:05 Atlanta (ATL) S
WS 5421 Non-stop Canadair CRJ 900 (CR9) 1:05 Valid until 2025-05-03
Codeshare flight, operated by Delta Air Lines.(DL 4957)
Mon,Tue,Thu-Sun 09:00 Atlanta (ATL) S 09:36 Baton Rouge (BTR)
WS 5421 Non-stop Boeing 717 (717) 1:36 Effective 2025-11-06 through 2025-11-11
Codeshare flight, operated by Delta Air Lines.(DL 1834)
Sat 09:30 Dulles, Washington (IAD) 11:04 Detroit (DTW) M
WS 5421 Non-stop Canadair CRJ 900 (CR9) 1:34 Effective 2025-09-13 through 2025-09-20
Codeshare flight, operated by Delta Air Lines.(DL 4933)
Sat 09:30 Dulles, Washington (IAD) 11:04 Detroit (DTW) M
WS 5421 Non-stop Canadair CRJ 900 (CR9) 1:34 Operates only on 2025-10-04
Codeshare flight, operated by Delta Air Lines.(DL 4933)
Sun 09:30 Dulles, Washington (IAD) 11:04 Detroit (DTW) M
WS 5421 Non-stop Canadair CRJ 900 (CR9) 1:34 Operates only on 2025-10-12
Codeshare flight, operated by Delta Air Lines.(DL 4933)
Sat,Sun 09:43 Salt Lake City (SLC) 15:13 Detroit (DTW) M
WS 5421 Non-stop Boeing 737-900 (739) 3:30 Effective 2025-05-10 through 2025-05-11
Codeshare flight, operated by Delta Air Lines.(DL 2236)
Sun 09:43 Salt Lake City (SLC) 15:13 Detroit (DTW) M
WS 5421 Non-stop Boeing 737-900 (739) 3:30 Operates only on 2025-05-18
Codeshare flight, operated by Delta Air Lines.(DL 2236)
Sun 09:43 Salt Lake City (SLC) 15:13 Detroit (DTW) M
WS 5421 Non-stop Boeing 737-900 (739) 3:30 Operates only on 2025-06-01
Codeshare flight, operated by Delta Air Lines.(DL 2236)
Sun 09:47 Salt Lake City (SLC) 15:14 Detroit (DTW) M
WS 5421 Non-stop Boeing 737-900 (739) 3:27 Operates only on 2025-05-04
Codeshare flight, operated by Delta Air Lines.(DL 2236)
Sun 10:05 Atlanta (ATL) S 11:53 Dulles, Washington (IAD)
WS 5421 Non-stop Airbus A319 (319) 1:48 Operates only on 2025-07-06
Codeshare flight, operated by Delta Air Lines.(DL 1751)
Daily 10:05 Toronto Pearson (YYZ) 3 11:30 Detroit (DTW) M
WS 5421 Non-stop Canadair CRJ 900 (CR9) 1:25 Effective 2025-12-20 through 2026-01-05
Codeshare flight, operated by Delta Air Lines.(DL 3993)
Sun 10:20 Detroit (DTW) M 11:47 Dulles, Washington (IAD)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 1:27 Operates only on 2025-09-07
Codeshare flight, operated by Delta Air Lines.(DL 5033)
Daily 11:10 Atlanta (ATL) S 12:17 Fayetteville/Springdale (XNA)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 2:07 Effective from 2026-01-06
Codeshare flight, operated by Delta Air Lines.(DL 5243)
Tue 12:41 Atlanta (ATL) S 14:02 Cincinnati (CVG)
WS 5421 Non-stop Boeing 737-800 (738) 1:21 Operates only on 2025-07-01
Codeshare flight, operated by Delta Air Lines.(DL 1283)
Mon-Wed,Fri,Sun 12:45 Atlanta (ATL) S 14:07 Raleigh/Durham (RDU) 2
WS 5421 Non-stop Boeing 737-900 (739) 1:22 Effective 2025-10-26 through 2025-10-31
Codeshare flight, operated by Delta Air Lines.(DL 2026)
Fri 13:00 Atlanta (ATL) S 13:52 Fayetteville/Springdale (XNA)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 1:52 Operates only on 2025-07-04
Codeshare flight, operated by Delta Air Lines.(DL 3708)
Sun 13:15 George Bush, Houston (IAH) A 16:19 Atlanta (ATL) S
WS 5421 Non-stop Airbus A321 (321) 2:04 Effective 2025-09-14 through 2025-09-21
Codeshare flight, operated by Delta Air Lines.(DL 2709)
Sat,Sun 13:15 George Bush, Houston (IAH) A 16:19 Atlanta (ATL) S
WS 5421 Non-stop Airbus A321 (321) 2:04 Effective 2025-09-27 through 2025-09-28
Codeshare flight, operated by Delta Air Lines.(DL 2709)
Sun 13:15 George Bush, Houston (IAH) A 16:19 Atlanta (ATL) S
WS 5421 Non-stop Airbus A321 (321) 2:04 Operates only on 2025-10-05
Codeshare flight, operated by Delta Air Lines.(DL 2709)
Sun 13:15 George Bush, Houston (IAH) A 16:19 Atlanta (ATL) S
WS 5421 Non-stop Airbus A321 (321) 2:04 Operates only on 2025-10-19
Codeshare flight, operated by Delta Air Lines.(DL 2709)
Sat 13:15 George Bush, Houston (IAH) A 16:19 Atlanta (ATL) S
WS 5421 Non-stop Airbus A321 (321) 2:04 Operates only on 2025-11-01
Codeshare flight, operated by Delta Air Lines.(DL 2709)
Mon-Fri 14:03 Atlanta (ATL) S 14:58 Augusta (AGS)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 0:55 Effective 2025-05-07 through 2025-05-22
Codeshare flight, operated by Delta Air Lines.(DL 5491)
Tue,Wed,Fri 14:03 Atlanta (ATL) S 14:58 Augusta (AGS)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 0:55 Effective 2025-05-27 through 2025-06-03
Codeshare flight, operated by Delta Air Lines.(DL 5491)
Fri 14:03 Atlanta (ATL) S 14:58 Augusta (AGS)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 0:55 Operates only on 2025-06-06
Codeshare flight, operated by Delta Air Lines.(DL 5491)
Wed 14:15 Atlanta (ATL) S 15:38 Cincinnati (CVG)
WS 5421 Non-stop Boeing 737-900 (739) 1:23 Effective 2025-06-11 through 2025-06-25
Codeshare flight, operated by Delta Air Lines.(DL 2837)
Mon-Fri 14:15 Atlanta (ATL) S 15:37 Cincinnati (CVG)
WS 5421 Non-stop Boeing 737-900 (739) 1:22 Effective 2025-07-07 through 2025-10-24
Codeshare flight, operated by Delta Air Lines.(DL 2837)
Sun 14:17 Atlanta (ATL) S 15:22 Houston Hobby (HOU)
WS 5421 Non-stop Airbus A319 (319) 2:05 Operates only on 2025-06-29
Codeshare flight, operated by Delta Air Lines.(DL 2381)
Tue 14:25 Atlanta (ATL) S 15:48 Cincinnati (CVG)
WS 5421 Non-stop Boeing 737-800 (738) 1:23 Effective 2025-06-10 through 2025-06-24
Codeshare flight, operated by Delta Air Lines.(DL 2837)
Mon-Fri 14:45 Atlanta (ATL) S 16:04 Cincinnati (CVG)
WS 5421 Non-stop Boeing 737-900 (739) 1:19 Valid until 2025-05-06
Codeshare flight, operated by Delta Air Lines.(DL 2837)
Thu 14:59 Detroit (DTW) M 16:31 Dulles, Washington (IAD)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 1:32 Operates only on 2025-10-30
Codeshare flight, operated by Delta Air Lines.(DL 4748)
Sat 15:00 Boston Logan (BOS) A 17:50 Atlanta (ATL) S
WS 5421 Non-stop Airbus A321 (321) 2:50 Effective 2025-05-17 through 2025-06-07
Codeshare flight, operated by Delta Air Lines.(DL 638)
Mon,Thu 15:00 New York LaGuardia (LGA) C 17:33 Atlanta (ATL) S
WS 5421 Non-stop Airbus A321 (321) 2:33 Effective 2025-06-30 through 2025-07-03
Codeshare flight, operated by Delta Air Lines.(DL 974)
Sat 15:05 Boston Logan (BOS) A 17:58 Atlanta (ATL) S
WS 5421 Non-stop Airbus A321 (321) 2:53 Effective 2025-06-14 through 2025-07-05
Codeshare flight, operated by Delta Air Lines.(DL 638)
Sat 15:05 Boston Logan (BOS) A 18:01 Atlanta (ATL) S
WS 5421 Non-stop Airbus A321 (321) 2:56 Effective 2025-07-12 through 2025-08-30
Codeshare flight, operated by Delta Air Lines.(DL 638)
Sat 15:20 Fort Lauderdale (FLL) 2 18:29 New York John F. Kennedy (JFK) 4
WS 5421 Non-stop Airbus A321 (321) 3:09 Effective 2025-10-11 through 2025-10-25
Codeshare flight, operated by Delta Air Lines.(DL 1808)
Sat 17:05 New York LaGuardia (LGA) C 18:45 Richmond (RIC)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 1:40 Operates only on 2025-09-06
Codeshare flight, operated by Delta Air Lines.(DL 5336)
Sun 17:10 Tallahassee (TLH) 18:24 Atlanta (ATL) S
WS 5421 Non-stop Boeing 717 (717) 1:14 Operates only on 2025-08-31
Codeshare flight, operated by Delta Air Lines.(DL 1902)
Sun 17:40 Detroit (DTW) M 18:53 Buffalo (BUF)
WS 5421 Non-stop Canadair CRJ 700 (CR7) 1:13 Operates only on 2025-06-15
Codeshare flight, operated by Delta Air Lines.(DL 5243)
Sun 17:40 Detroit (DTW) M 18:49 Buffalo (BUF)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 1:09 Operates only on 2025-08-10
Codeshare flight, operated by Delta Air Lines.(DL 5243)
Sun 17:45 Detroit (DTW) M 18:54 Buffalo (BUF)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 1:09 Effective 2025-07-13 through 2025-08-03
Codeshare flight, operated by Delta Air Lines.(DL 5243)
Sun 17:50 Detroit (DTW) M 18:49 Cleveland Hopkins (CLE)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 0:59 Operates only on 2025-06-22
Codeshare flight, operated by Delta Air Lines.(DL 4954)
Mon-Wed,Fri,Sun 18:00 Detroit (DTW) M 20:10 Atlanta (ATL) S
WS 5421 Non-stop Airbus A321 (321) 2:10 Effective 2025-12-12 through 2025-12-19
Codeshare flight, operated by Delta Air Lines.(DL 2053)
Thu 18:10 Detroit (DTW) M 19:09 Grand Rapids (GRR)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 0:59 Effective 2025-11-27 through 2025-12-18
Codeshare flight, operated by Delta Air Lines.(DL 3635)
Sat 18:10 Detroit (DTW) M 18:38 Chicago O'Hare (ORD) 5
WS 5421 Non-stop Boeing 717 (717) 1:28 Effective 2025-11-29 through 2025-12-13
Codeshare flight, operated by Delta Air Lines.(DL 1668)
Sun 18:25 Detroit (DTW) M 19:20 Cleveland Hopkins (CLE)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 0:55 Effective 2025-08-17 through 2025-08-24
Codeshare flight, operated by Delta Air Lines.(DL 4954)
Mon-Wed,Fri,Sun 18:25 Detroit (DTW) M 19:23 Cleveland Hopkins (CLE)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 0:58 Effective 2025-11-12 through 2025-12-10
Codeshare flight, operated by Delta Air Lines.(DL 4954)
Thu 19:05 Gainesville (GNV) 20:32 Atlanta (ATL) S
WS 5421 Non-stop Boeing 717 (717) 1:27 Effective 2025-11-13 through 2025-11-20
Codeshare flight, operated by Delta Air Lines.(DL 3138)
Sun 19:15 Atlanta (ATL) S 20:02 Chattanooga (CHA)
WS 5421 Non-stop Boeing 717 (717) 0:47 Operates only on 2025-05-25
Codeshare flight, operated by Delta Air Lines.(DL 2451)
Mon,Thu,Fri 19:39 Atlanta (ATL) S 20:34 Fayetteville/Springdale (XNA)
WS 5421 Non-stop Boeing 717 (717) 1:55 Effective 2025-06-09 through 2025-06-27
Codeshare flight, operated by Delta Air Lines.(DL 1737)
Sun 20:00 Detroit (DTW) M 20:57 Cleveland Hopkins (CLE)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 0:57 Operates only on 2025-06-08
Codeshare flight, operated by Delta Air Lines.(DL 3685)
Wed,Thu 20:59 Atlanta (ATL) S 21:46 Chattanooga (CHA)
WS 5421 Non-stop Boeing 717 (717) 0:47 Effective 2025-05-29 through 2025-06-04
Codeshare flight, operated by Delta Air Lines.(DL 2451)
Mon,Thu 21:35 Atlanta (ATL) S 22:20 Lafayette (LFT)
WS 5421 Non-stop Canadair CRJ 900 (CR9) 1:45 Effective 2025-06-02 through 2025-06-05
Codeshare flight, operated by Delta Air Lines.(DL 5243)
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This flight number is listed as serving the following routes:
WestJet flight WS 5421: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

WestJet WS5421
Operates only on 2025-05-26
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2517)
Duration: 1:04, non-stop
Boeing 717 (717)

WestJet WS5421
Effective 2025-11-15 through 2025-11-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 3009)
Duration: 1:05, non-stop
Boeing 717 (717)

WestJet WS5421
Operates only on 2025-07-02
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2570)
Duration: 2:58, non-stop
Airbus A220-300 (223)

WestJet WS5421
Operates only on 2025-11-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2523)
Duration: 1:48, non-stop
Airbus A320 (320)

WestJet WS5421
Effective 2025-11-03 through 2025-11-05
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 3526)
Duration: 1:34, non-stop
Embraer EMB 175 (E7W)

WestJet WS5421
Valid until 2025-05-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 4957)
Duration: 1:05, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Effective 2025-11-06 through 2025-11-11
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1834)
Duration: 1:36, non-stop
Boeing 717 (717)

WestJet WS5421
Effective 2025-09-13 through 2025-09-20
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 4933)
Duration: 1:34, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Operates only on 2025-10-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 4933)
Duration: 1:34, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Operates only on 2025-10-12
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4933)
Duration: 1:34, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Effective 2025-05-10 through 2025-05-11
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2236)
Duration: 3:30, non-stop
Boeing 737-900 (739)

WestJet WS5421
Operates only on 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2236)
Duration: 3:30, non-stop
Boeing 737-900 (739)

WestJet WS5421
Operates only on 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2236)
Duration: 3:30, non-stop
Boeing 737-900 (739)

WestJet WS5421
Operates only on 2025-05-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2236)
Duration: 3:27, non-stop
Boeing 737-900 (739)

WestJet WS5421
Operates only on 2025-07-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1751)
Duration: 1:48, non-stop
Airbus A319 (319)

WestJet WS5421
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 3993)
Duration: 1:25, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Operates only on 2025-09-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5033)
Duration: 1:27, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5243)
Duration: 2:07, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Operates only on 2025-07-01
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 1283)
Duration: 1:21, non-stop
Boeing 737-800 (738)

WestJet WS5421
Effective 2025-10-26 through 2025-10-31
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2026)
Duration: 1:22, non-stop
Boeing 737-900 (739)

WestJet WS5421
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 3708)
Duration: 1:52, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Effective 2025-09-14 through 2025-09-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2709)
Duration: 2:04, non-stop
Airbus A321 (321)

WestJet WS5421
Effective 2025-09-27 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2709)
Duration: 2:04, non-stop
Airbus A321 (321)

WestJet WS5421
Operates only on 2025-10-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2709)
Duration: 2:04, non-stop
Airbus A321 (321)

WestJet WS5421
Operates only on 2025-10-19
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2709)
Duration: 2:04, non-stop
Airbus A321 (321)

WestJet WS5421
Operates only on 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2709)
Duration: 2:04, non-stop
Airbus A321 (321)

WestJet WS5421
Effective 2025-05-07 through 2025-05-22
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5491)
Duration: 0:55, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Effective 2025-05-27 through 2025-06-03
Mon
-
Tue
Wed
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5491)
Duration: 0:55, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Operates only on 2025-06-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5491)
Duration: 0:55, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Effective 2025-06-11 through 2025-06-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2837)
Duration: 1:23, non-stop
Boeing 737-900 (739)

WestJet WS5421
Effective 2025-07-07 through 2025-10-24
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2837)
Duration: 1:22, non-stop
Boeing 737-900 (739)

WestJet WS5421
Operates only on 2025-06-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2381)
Duration: 2:05, non-stop
Airbus A319 (319)

WestJet WS5421
Effective 2025-06-10 through 2025-06-24
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2837)
Duration: 1:23, non-stop
Boeing 737-800 (738)

WestJet WS5421
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2837)
Duration: 1:19, non-stop
Boeing 737-900 (739)

WestJet WS5421
Operates only on 2025-10-30
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 4748)
Duration: 1:32, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Effective 2025-05-17 through 2025-06-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 638)
Duration: 2:50, non-stop
Airbus A321 (321)

WestJet WS5421
Effective 2025-06-30 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 974)
Duration: 2:33, non-stop
Airbus A321 (321)

WestJet WS5421
Effective 2025-06-14 through 2025-07-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 638)
Duration: 2:53, non-stop
Airbus A321 (321)

WestJet WS5421
Effective 2025-07-12 through 2025-08-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 638)
Duration: 2:56, non-stop
Airbus A321 (321)

WestJet WS5421
Effective 2025-10-11 through 2025-10-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 1808)
Duration: 3:09, non-stop
Airbus A321 (321)

WestJet WS5421
Operates only on 2025-09-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5336)
Duration: 1:40, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1902)
Duration: 1:14, non-stop
Boeing 717 (717)

WestJet WS5421
Operates only on 2025-06-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5243)
Duration: 1:13, non-stop
Canadair CRJ 700 (CR7)

WestJet WS5421
Operates only on 2025-08-10
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5243)
Duration: 1:09, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Effective 2025-07-13 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5243)
Duration: 1:09, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Operates only on 2025-06-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4954)
Duration: 0:59, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
18:00

20:10
Effective 2025-12-12 through 2025-12-19
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2053)
Duration: 2:10, non-stop
Airbus A321 (321)

WestJet WS5421
Effective 2025-11-27 through 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 3635)
Duration: 0:59, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Effective 2025-11-29 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 1668)
Duration: 1:28, non-stop
Boeing 717 (717)

WestJet WS5421
Effective 2025-08-17 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4954)
Duration: 0:55, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Effective 2025-11-12 through 2025-12-10
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4954)
Duration: 0:58, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Effective 2025-11-13 through 2025-11-20
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 3138)
Duration: 1:27, non-stop
Boeing 717 (717)

WestJet WS5421
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2451)
Duration: 0:47, non-stop
Boeing 717 (717)

WestJet WS5421
Effective 2025-06-09 through 2025-06-27
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 1737)
Duration: 1:55, non-stop
Boeing 717 (717)

WestJet WS5421
Operates only on 2025-06-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 3685)
Duration: 0:57, non-stop
Canadair CRJ 900 (CR9)

WestJet WS5421
Effective 2025-05-29 through 2025-06-04
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 2451)
Duration: 0:47, non-stop
Boeing 717 (717)

WestJet WS5421
Effective 2025-06-02 through 2025-06-05
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5243)
Duration: 1:45, non-stop
Canadair CRJ 900 (CR9)
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This flight number is listed as serving the following routes:
  • Atlanta (ATL) - Augusta (AGS)
  • Atlanta (ATL) - Baton Rouge (BTR)
  • Atlanta (ATL) - Chattanooga (CHA)
  • Atlanta (ATL) - Cincinnati (CVG)
  • Atlanta (ATL) - Cleveland Hopkins (CLE)
  • Atlanta (ATL) - Dulles, Washington (IAD)
  • Atlanta (ATL) - Fayetteville/Springdale (XNA)
  • Atlanta (ATL) - Houston Hobby (HOU)
  • Atlanta (ATL) - Lafayette (LFT)
  • Atlanta (ATL) - Raleigh/Durham (RDU)
  • Boston Logan (BOS) - Atlanta (ATL)
  • Boston Logan (BOS) - Chicago O'Hare (ORD)
  • Columbia (CAE) - Atlanta (ATL)
  • Detroit (DTW) - Atlanta (ATL)
  • Detroit (DTW) - Buffalo (BUF)
  • Detroit (DTW) - Chicago O'Hare (ORD)
  • Detroit (DTW) - Cleveland Hopkins (CLE)
  • Detroit (DTW) - Grand Rapids (GRR)
  • Dulles, Washington (IAD) - Detroit (DTW)
  • Fort Lauderdale (FLL) - New York John F. Kennedy (JFK)
  • Gainesville (GNV) - Atlanta (ATL)
  • George Bush, Houston (IAH) - Atlanta (ATL)
  • Huntsville (HSV) - Atlanta (ATL)
  • New York LaGuardia (LGA) - Atlanta (ATL)
  • New York LaGuardia (LGA) - Richmond (RIC)
  • Salt Lake City (SLC) - Detroit (DTW)
  • Tallahassee (TLH) - Atlanta (ATL)
  • Toronto Pearson (YYZ) - Detroit (DTW)
  • Winnipeg (YWG) - Minneapolis/Saint Paul (MSP)