United Airlines flight UA 8421: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 10:15 Frankfurt (FRA) 1 11:15 Vancouver (YVR) M
UA 8421 Non-stop Boeing 787-9 (789) 10:00 Effective 2026-05-02 through 2026-06-17
Codeshare flight, operated by Air Canada.(AC 839)
Daily 10:15 Frankfurt (FRA) 1 11:10 Vancouver (YVR) M
UA 8421 Non-stop Boeing 787-9 (789) 9:55 Effective 2026-06-18 through 2026-09-07
Codeshare flight, operated by Air Canada.(AC 839)
Daily 10:15 Frankfurt (FRA) 1 11:20 Vancouver (YVR) M
UA 8421 Non-stop Boeing 787-9 (789) 10:05 Effective 2026-09-08 through 2026-10-24
Codeshare flight, operated by Air Canada.(AC 839)
Sat 12:10 Quebec (YQB) 13:58 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Embraer EMB 175 (E75) 1:48 Operates only on 2026-01-03
Codeshare flight, operated by Air Canada.(AC 8399)
Mon 12:10 Quebec (YQB) 13:52 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Embraer EMB 175 (E75) 1:42 Operates only on 2026-03-30
Codeshare flight, operated by Air Canada.(AC 8399)
Mon 12:10 Quebec (YQB) 13:50 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Canadair CRJ 900 (CR9) 1:40 Effective 2026-04-06 through 2026-04-27
Codeshare flight, operated by Air Canada.(AC 8399)
Mon,Thu,Fri 12:15 Quebec (YQB) 13:54 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Canadair CRJ 900 (CR9) 1:39 Valid until 2026-01-01
Codeshare flight, operated by Air Canada.(AC 8399)
Mon-Wed,Fri,Sun 12:15 Quebec (YQB) 14:03 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Embraer EMB 175 (E75) 1:48 Valid until 2026-01-07
Codeshare flight, operated by Air Canada.(AC 8399)
Mon-Thu,Sat,Sun 12:15 Quebec (YQB) 14:03 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Embraer EMB 175 (E75) 1:48 Effective 2026-01-08 through 2026-01-15
Codeshare flight, operated by Air Canada.(AC 8399)
Fri 12:15 Quebec (YQB) 13:54 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Canadair CRJ 900 (CR9) 1:39 Operates only on 2026-01-09
Codeshare flight, operated by Air Canada.(AC 8399)
Sun 12:15 Quebec (YQB) 13:54 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Canadair CRJ 900 (CR9) 1:39 Operates only on 2026-02-01
Codeshare flight, operated by Air Canada.(AC 8399)
Daily 12:15 Quebec (YQB) 14:03 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Embraer EMB 175 (E75) 1:48 Effective 2026-02-02 through 2026-03-28
Codeshare flight, operated by Air Canada.(AC 8399)
Tue,Sun 12:15 Quebec (YQB) 13:57 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Embraer EMB 175 (E75) 1:42 Effective 2026-03-29 through 2026-03-31
Codeshare flight, operated by Air Canada.(AC 8399)
Tue-Sun 12:15 Quebec (YQB) 13:55 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Canadair CRJ 900 (CR9) 1:40 Effective 2026-04-01 through 2026-04-30
Codeshare flight, operated by Air Canada.(AC 8399)
Daily 12:20 Quebec (YQB) 13:59 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Canadair CRJ 900 (CR9) 1:39 Effective from 2026-10-25
Codeshare flight, operated by Air Canada.(AC 8399)
Fri 14:15 Quebec (YQB) 15:55 Toronto Pearson (YYZ) 1
UA 8421 Non-stop Canadair CRJ 900 (CR9) 1:40 Operates only on 2026-05-01
Codeshare flight, operated by Air Canada.(AC 8397)
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This flight number is listed as serving the following routes:


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United Airlines flight UA 8421: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
United Airlines UA8421
10:15
Frankfurt (FRA) 1

11:15
Vancouver (YVR) M
Effective 2026-05-02 through 2026-06-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 839)
Duration: 10:00, non-stop
Boeing 787-9 (789)
Direct Codeshare Flights:
United Airlines UA8421
10:15
Frankfurt (FRA) 1

11:10
Vancouver (YVR) M
Effective 2026-06-18 through 2026-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 839)
Duration: 9:55, non-stop
Boeing 787-9 (789)
Direct Codeshare Flights:
United Airlines UA8421
10:15
Frankfurt (FRA) 1

11:20
Vancouver (YVR) M
Effective 2026-09-08 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 839)
Duration: 10:05, non-stop
Boeing 787-9 (789)
Direct Codeshare Flights:
United Airlines UA8421
12:10
Quebec (YQB)

13:58
Toronto Pearson (YYZ) 1
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Air Canada. (AC 8399)
Duration: 1:48, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
United Airlines UA8421
12:10
Quebec (YQB)

13:52
Toronto Pearson (YYZ) 1
Operates only on 2026-03-30
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Air Canada. (AC 8399)
Duration: 1:42, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
United Airlines UA8421
12:10
Quebec (YQB)

13:50
Toronto Pearson (YYZ) 1
Effective 2026-04-06 through 2026-04-27
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Air Canada. (AC 8399)
Duration: 1:40, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8421
12:15
Quebec (YQB)

13:54
Toronto Pearson (YYZ) 1
Valid until 2026-01-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by Air Canada. (AC 8399)
Duration: 1:39, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8421
12:15
Quebec (YQB)

14:03
Toronto Pearson (YYZ) 1
Valid until 2026-01-07
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Air Canada. (AC 8399)
Duration: 1:48, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
United Airlines UA8421
12:15
Quebec (YQB)

14:03
Toronto Pearson (YYZ) 1
Effective 2026-01-08 through 2026-01-15
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 8399)
Duration: 1:48, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
United Airlines UA8421
12:15
Quebec (YQB)

13:54
Toronto Pearson (YYZ) 1
Operates only on 2026-01-09
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Air Canada. (AC 8399)
Duration: 1:39, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8421
12:15
Quebec (YQB)

13:54
Toronto Pearson (YYZ) 1
Operates only on 2026-02-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Air Canada. (AC 8399)
Duration: 1:39, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8421
12:15
Quebec (YQB)

14:03
Toronto Pearson (YYZ) 1
Effective 2026-02-02 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 8399)
Duration: 1:48, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
United Airlines UA8421
12:15
Quebec (YQB)

13:57
Toronto Pearson (YYZ) 1
Effective 2026-03-29 through 2026-03-31
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by Air Canada. (AC 8399)
Duration: 1:42, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
United Airlines UA8421
12:15
Quebec (YQB)

13:55
Toronto Pearson (YYZ) 1
Effective 2026-04-01 through 2026-04-30
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 8399)
Duration: 1:40, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8421
12:20
Quebec (YQB)

13:59
Toronto Pearson (YYZ) 1
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 8399)
Duration: 1:39, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8421
14:15
Quebec (YQB)

15:55
Toronto Pearson (YYZ) 1
Operates only on 2026-05-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by Air Canada. (AC 8397)
Duration: 1:40, non-stop
Canadair CRJ 900 (CR9)
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This flight number is listed as serving the following routes:
  • Frankfurt (FRA) - Vancouver (YVR)
  • Quebec (YQB) - Toronto Pearson (YYZ)
All United Airlines flights
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