WestJet flight WS 8421: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Wed-Fri 06:00 Destin/Fort Walton Beach (VPS) 08:15 Atlanta (ATL) S
WS 8421 Non-stop Boeing 737-900 (739) 1:15 Effective 2026-05-15 through 2026-05-21
Codeshare flight, operated by Delta Air Lines.(DL 3085)
Mon-Thu,Sat 06:00 Destin/Fort Walton Beach (VPS) 08:15 Atlanta (ATL) S
WS 8421 Non-stop Boeing 737-900 (739) 1:15 Effective 2026-05-23 through 2026-06-02
Codeshare flight, operated by Delta Air Lines.(DL 3085)
Thu-Sat 06:00 Destin/Fort Walton Beach (VPS) 08:15 Atlanta (ATL) S
WS 8421 Non-stop Boeing 737-900 (739) 1:15 Effective 2026-06-04 through 2026-06-06
Codeshare flight, operated by Delta Air Lines.(DL 3085)
Wed,Fri,Sun 06:00 Sacramento (SMF) A 07:39 Los Angeles (LAX) 3
WS 8421 Non-stop Embraer EMB 175 (E7W) 1:39 Effective 2026-06-12 through 2026-06-17
Codeshare flight, operated by Delta Air Lines.(DL 3969)
Wed,Fri,Sun 11:25 Salt Lake City (SLC) 12:07 Phoenix Sky Harbor (PHX) 3
WS 8421 Non-stop Boeing 737-900 (739) 1:42 Effective 2026-07-10 through 2026-07-15
Codeshare flight, operated by Delta Air Lines.(DL 1431)
Fri,Sun 14:30 Knoxville (TYS) 15:36 Atlanta (ATL) S
WS 8421 Non-stop Boeing 717 (717) 1:06 Effective 2026-05-22 through 2026-05-31
Codeshare flight, operated by Delta Air Lines.(DL 724)
Wed 14:30 Knoxville (TYS) 15:36 Atlanta (ATL) S
WS 8421 Non-stop Boeing 717 (717) 1:06 Operates only on 2026-06-03
Codeshare flight, operated by Delta Air Lines.(DL 724)
Mon-Thu,Sat,Sun 15:50 Saint Louis (STL) 1 17:30 Minneapolis/Saint Paul (MSP) 1
WS 8421 Non-stop Canadair CRJ 900 (CR9) 1:40 Effective 2026-06-07 through 2026-06-13
Codeshare flight, operated by Delta Air Lines.(DL 4821)
Mon,Tue,Thu-Sun 15:50 Saint Louis (STL) 1 17:30 Minneapolis/Saint Paul (MSP) 1
WS 8421 Non-stop Canadair CRJ 900 (CR9) 1:40 Effective 2026-06-15 through 2026-06-23
Codeshare flight, operated by Delta Air Lines.(DL 4821)
Wed,Thu,Sat 15:50 Saint Louis (STL) 1 17:30 Minneapolis/Saint Paul (MSP) 1
WS 8421 Non-stop Canadair CRJ 900 (CR9) 1:40 Effective 2026-06-24 through 2026-06-27
Codeshare flight, operated by Delta Air Lines.(DL 4821)
Fri 17:15 Salt Lake City (SLC) 23:59 New York John F. Kennedy (JFK) 4
WS 8421 Non-stop Airbus A321neo (32Q) 4:44 Operates only on 2026-07-24
Codeshare flight, operated by Delta Air Lines.(DL 697)
Mon-Fri,Sun 20:45 Salt Lake City (SLC) 21:34 Palm Springs (PSP)
WS 8421 Non-stop Embraer EMB 175 (E7W) 1:49 Effective 2026-06-26 through 2026-07-02
Codeshare flight, operated by Delta Air Lines.(DL 4045)
Mon,Tue,Thu,Sat 20:45 Salt Lake City (SLC) 21:34 Palm Springs (PSP)
WS 8421 Non-stop Embraer EMB 175 (E7W) 1:49 Effective 2026-07-04 through 2026-07-25
Codeshare flight, operated by Delta Air Lines.(DL 4045)
Daily 20:45 Salt Lake City (SLC) 21:34 Palm Springs (PSP)
WS 8421 Non-stop Embraer EMB 175 (E7W) 1:49 Effective 2026-07-26 through 2026-10-05
Codeshare flight, operated by Delta Air Lines.(DL 4045)
Daily 20:45 Salt Lake City (SLC) 21:35 Palm Springs (PSP)
WS 8421 Non-stop Embraer EMB 175 (E7W) 1:50 Effective from 2026-10-06
Codeshare flight, operated by Delta Air Lines.(DL 4045)
Wed,Fri,Sun 22:55 Salt Lake City (SLC) 23:41 Phoenix Sky Harbor (PHX) 3
WS 8421 Non-stop Airbus A321neo (32Q) 1:46 Effective 2026-07-03 through 2026-07-08
Codeshare flight, operated by Delta Air Lines.(DL 1496)
Wed,Fri,Sun 22:55 Salt Lake City (SLC) 23:41 Phoenix Sky Harbor (PHX) 3
WS 8421 Non-stop Airbus A321neo (32Q) 1:46 Effective 2026-07-17 through 2026-07-22
Codeshare flight, operated by Delta Air Lines.(DL 1496)
This flight number is listed as serving the following routes:


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WestJet flight WS 8421: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
WestJet WS8421
06:00
Destin/Fort Walton Beach (VPS)

08:15
Atlanta (ATL) S
Effective 2026-05-15 through 2026-05-21
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 3085)
Duration: 1:15, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
WestJet WS8421
06:00
Destin/Fort Walton Beach (VPS)

08:15
Atlanta (ATL) S
Effective 2026-05-23 through 2026-06-02
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 3085)
Duration: 1:15, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
WestJet WS8421
06:00
Destin/Fort Walton Beach (VPS)

08:15
Atlanta (ATL) S
Effective 2026-06-04 through 2026-06-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 3085)
Duration: 1:15, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
WestJet WS8421
06:00
Sacramento (SMF) A

07:39
Los Angeles (LAX) 3
Effective 2026-06-12 through 2026-06-17
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 3969)
Duration: 1:39, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
WestJet WS8421
11:25
Salt Lake City (SLC)

12:07
Phoenix Sky Harbor (PHX) 3
Effective 2026-07-10 through 2026-07-15
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1431)
Duration: 1:42, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
WestJet WS8421
14:30
Knoxville (TYS)

15:36
Atlanta (ATL) S
Effective 2026-05-22 through 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 724)
Duration: 1:06, non-stop
Boeing 717 (717)
Direct Codeshare Flights:
WestJet WS8421
14:30
Knoxville (TYS)

15:36
Atlanta (ATL) S
Operates only on 2026-06-03
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 724)
Duration: 1:06, non-stop
Boeing 717 (717)
Direct Codeshare Flights:
WestJet WS8421
15:50
Saint Louis (STL) 1

17:30
Minneapolis/Saint Paul (MSP) 1
Effective 2026-06-07 through 2026-06-13
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4821)
Duration: 1:40, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
WestJet WS8421
15:50
Saint Louis (STL) 1

17:30
Minneapolis/Saint Paul (MSP) 1
Effective 2026-06-15 through 2026-06-23
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4821)
Duration: 1:40, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
WestJet WS8421
15:50
Saint Louis (STL) 1

17:30
Minneapolis/Saint Paul (MSP) 1
Effective 2026-06-24 through 2026-06-27
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 4821)
Duration: 1:40, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
WestJet WS8421
17:15
Salt Lake City (SLC)

23:59
New York John F. Kennedy (JFK) 4
Operates only on 2026-07-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 697)
Duration: 4:44, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
WestJet WS8421
20:45
Salt Lake City (SLC)

21:34
Palm Springs (PSP)
Effective 2026-06-26 through 2026-07-02
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4045)
Duration: 1:49, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
WestJet WS8421
20:45
Salt Lake City (SLC)

21:34
Palm Springs (PSP)
Effective 2026-07-04 through 2026-07-25
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by Delta Air Lines. (DL 4045)
Duration: 1:49, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
WestJet WS8421
20:45
Salt Lake City (SLC)

21:34
Palm Springs (PSP)
Effective 2026-07-26 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4045)
Duration: 1:49, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
WestJet WS8421
20:45
Salt Lake City (SLC)

21:35
Palm Springs (PSP)
Effective from 2026-10-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Delta Air Lines. (DL 4045)
Duration: 1:50, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
WestJet WS8421
22:55
Salt Lake City (SLC)

23:41
Phoenix Sky Harbor (PHX) 3
Effective 2026-07-03 through 2026-07-08
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1496)
Duration: 1:46, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
WestJet WS8421
22:55
Salt Lake City (SLC)

23:41
Phoenix Sky Harbor (PHX) 3
Effective 2026-07-17 through 2026-07-22
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Delta Air Lines. (DL 1496)
Duration: 1:46, non-stop
Airbus A321neo (32Q)
This flight number is listed as serving the following routes:
  • Destin/Fort Walton Beach (VPS) - Atlanta (ATL)
  • Knoxville (TYS) - Atlanta (ATL)
  • Sacramento (SMF) - Los Angeles (LAX)
  • Saint Louis (STL) - Minneapolis/Saint Paul (MSP)
  • Salt Lake City (SLC) - New York John F. Kennedy (JFK)
  • Salt Lake City (SLC) - Palm Springs (PSP)
  • Salt Lake City (SLC) - Phoenix Sky Harbor (PHX)
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