WestJet flight WS 8578: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon-Fri,Sun 10:59 New York John F. Kennedy (JFK) 4 12:47 Chicago O'Hare (ORD) 5
WS 8578 Non-stop Canadair CRJ 900 (CR9) 2:48 Effective 2025-06-08 through 2025-07-06
Codeshare flight, operated by Delta Air Lines.(DL 5017)
Mon,Wed,Fri 12:50 Portland (PWM) 15:03 Detroit (DTW) M
WS 8578 Non-stop Boeing 717 (717) 2:13 Effective 2025-07-25 through 2025-07-30
Codeshare flight, operated by Delta Air Lines.(DL 1891)
Mon-Fri,Sun 13:00 Philadelphia (PHL) D 14:41 Detroit (DTW) M
WS 8578 Non-stop Airbus A319 (319) 1:41 Effective 2025-08-08 through 2025-08-15
Codeshare flight, operated by Delta Air Lines.(DL 2189)
Daily 13:00 Philadelphia (PHL) D 14:41 Detroit (DTW) M
WS 8578 Non-stop Airbus A319 (319) 1:41 Effective 2025-08-16 through 2025-09-07
Codeshare flight, operated by Delta Air Lines.(DL 2189)
Daily 13:00 Philadelphia (PHL) D 14:48 Detroit (DTW) M
WS 8578 Non-stop Airbus A320 (320) 1:48 Effective 2025-09-08 through 2025-11-05
Codeshare flight, operated by Delta Air Lines.(DL 2189)
Daily 13:00 Philadelphia (PHL) D 14:48 Detroit (DTW) M
WS 8578 Non-stop Boeing 717 (717) 1:48 Effective 2025-11-06 through 2025-12-19
Codeshare flight, operated by Delta Air Lines.(DL 2189)
Daily 13:00 Philadelphia (PHL) D 14:48 Detroit (DTW) M
WS 8578 Non-stop Boeing 717 (717) 1:48 Effective from 2026-01-06
Codeshare flight, operated by Delta Air Lines.(DL 2189)
Mon-Fri,Sun 17:59 Portland (PWM) 19:29 New York LaGuardia (LGA) C
WS 8578 Non-stop Canadair CRJ 900 (CR9) 1:30 Effective 2025-07-07 through 2025-07-24
Codeshare flight, operated by Delta Air Lines.(DL 5409)
Tue,Thu,Sun 17:59 Portland (PWM) 19:29 New York LaGuardia (LGA) C
WS 8578 Non-stop Canadair CRJ 900 (CR9) 1:30 Effective 2025-07-27 through 2025-08-05
Codeshare flight, operated by Delta Air Lines.(DL 5409)
Wed,Thu 17:59 Portland (PWM) 19:29 New York LaGuardia (LGA) C
WS 8578 Non-stop Canadair CRJ 900 (CR9) 1:30 Effective 2025-08-06 through 2025-08-07
Codeshare flight, operated by Delta Air Lines.(DL 5409)
Mon-Fri,Sun 18:10 Knoxville (TYS) 19:55 Detroit (DTW) M
WS 8578 Non-stop Canadair CRJ 900 (CR9) 1:45 Effective 2025-05-07 through 2025-05-23
Codeshare flight, operated by Delta Air Lines.(DL 5238)
Mon-Fri,Sun 18:10 Knoxville (TYS) 19:55 Detroit (DTW) M
WS 8578 Non-stop Canadair CRJ 900 (CR9) 1:45 Effective 2025-05-26 through 2025-06-06
Codeshare flight, operated by Delta Air Lines.(DL 5238)
Fri 19:35 Seattle-Tacoma (SEA) 20:40 Vancouver (YVR) M
WS 8578 Non-stop Embraer EMB 175 (E7W) 1:05 Operates only on 2025-08-01
Codeshare flight, operated by Delta Air Lines.(DL 3698)
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This flight number is listed as serving the following routes:
WestJet flight WS 8578: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

WestJet WS8578
Effective 2025-06-08 through 2025-07-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5017)
Duration: 2:48, non-stop
Canadair CRJ 900 (CR9)

WestJet WS8578
Effective 2025-07-25 through 2025-07-30
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 1891)
Duration: 2:13, non-stop
Boeing 717 (717)

WestJet WS8578
Effective 2025-08-08 through 2025-08-15
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2189)
Duration: 1:41, non-stop
Airbus A319 (319)

WestJet WS8578
Effective 2025-08-16 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2189)
Duration: 1:41, non-stop
Airbus A319 (319)

WestJet WS8578
Effective 2025-09-08 through 2025-11-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2189)
Duration: 1:48, non-stop
Airbus A320 (320)

WestJet WS8578
Effective 2025-11-06 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2189)
Duration: 1:48, non-stop
Boeing 717 (717)

WestJet WS8578
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 2189)
Duration: 1:48, non-stop
Boeing 717 (717)

WestJet WS8578
Effective 2025-07-07 through 2025-07-24
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5409)
Duration: 1:30, non-stop
Canadair CRJ 900 (CR9)

WestJet WS8578
Effective 2025-07-27 through 2025-08-05
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5409)
Duration: 1:30, non-stop
Canadair CRJ 900 (CR9)

WestJet WS8578
Effective 2025-08-06 through 2025-08-07
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 5409)
Duration: 1:30, non-stop
Canadair CRJ 900 (CR9)

WestJet WS8578
Effective 2025-05-07 through 2025-05-23
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5238)
Duration: 1:45, non-stop
Canadair CRJ 900 (CR9)

WestJet WS8578
Effective 2025-05-26 through 2025-06-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 5238)
Duration: 1:45, non-stop
Canadair CRJ 900 (CR9)

WestJet WS8578
Operates only on 2025-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 3698)
Duration: 1:05, non-stop
Embraer EMB 175 (E7W)
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This flight number is listed as serving the following routes:
  • Knoxville (TYS) - Detroit (DTW)
  • New York John F. Kennedy (JFK) - Chicago O'Hare (ORD)
  • Philadelphia (PHL) - Detroit (DTW)
  • Portland (PWM) - Detroit (DTW)
  • Portland (PWM) - New York LaGuardia (LGA)
  • Seattle-Tacoma (SEA) - Vancouver (YVR)