United Airlines flight UA 8459: Multiple routes

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 09:45 Washington Dulles (IAD) 11:38 Montreal-Trudeau (YUL)
UA 8459 Non-stop Embraer EMB 175 (E75) 1:53 Valid until 2026-01-01
Codeshare flight, operated by Air Canada.(AC 8726)
Daily 09:45 Washington Dulles (IAD) 11:30 Montreal-Trudeau (YUL)
UA 8459 Non-stop Canadair CRJ 900 (CR9) 1:45 Effective 2026-01-02 through 2026-03-07
Codeshare flight, operated by Air Canada.(AC 8726)
Daily 09:55 Washington Dulles (IAD) 11:40 Montreal-Trudeau (YUL)
UA 8459 Non-stop Canadair CRJ 900 (CR9) 1:45 Effective 2026-03-08 through 2026-03-28
Codeshare flight, operated by Air Canada.(AC 8726)
Daily 11:10 Ottawa Macdonald-Cartier (YOW) 12:31 Toronto Pearson (YYZ) 1
UA 8459 Non-stop Airbus A220-300 (223) 1:21 Effective from 2026-10-25
Codeshare flight, operated by Air Canada.(AC 449)
Daily 11:55 Ottawa Macdonald-Cartier (YOW) 13:04 Toronto Pearson (YYZ) 1
UA 8459 Non-stop Airbus A220-300 (223) 1:09 Effective 2026-09-08 through 2026-10-24
Codeshare flight, operated by Air Canada.(AC 453)
Daily 12:00 Ottawa Macdonald-Cartier (YOW) 13:07 Toronto Pearson (YYZ) 1
UA 8459 Non-stop Airbus A220-300 (223) 1:07 Effective 2026-03-29 through 2026-04-30
Codeshare flight, operated by Air Canada.(AC 451)
Daily 12:00 Ottawa Macdonald-Cartier (YOW) 13:10 Toronto Pearson (YYZ) 1
UA 8459 Non-stop Airbus A320 (320) 1:10 Effective 2026-05-01 through 2026-06-17
Codeshare flight, operated by Air Canada.(AC 453)
Daily 12:00 Ottawa Macdonald-Cartier (YOW) 13:08 Toronto Pearson (YYZ) 1
UA 8459 Non-stop Airbus A320 (320) 1:08 Effective 2026-06-18 through 2026-09-07
Codeshare flight, operated by Air Canada.(AC 453)
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This flight number is listed as serving the following routes:


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United Airlines flight UA 8459: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
United Airlines UA8459
09:45
Washington Dulles (IAD)

11:38
Montreal-Trudeau (YUL)
Valid until 2026-01-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 8726)
Duration: 1:53, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
United Airlines UA8459
09:45
Washington Dulles (IAD)

11:30
Montreal-Trudeau (YUL)
Effective 2026-01-02 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 8726)
Duration: 1:45, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8459
09:55
Washington Dulles (IAD)

11:40
Montreal-Trudeau (YUL)
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 8726)
Duration: 1:45, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8459
11:10
Ottawa Macdonald-Cartier (YOW)

12:31
Toronto Pearson (YYZ) 1
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 449)
Duration: 1:21, non-stop
Airbus A220-300 (223)
Direct Codeshare Flights:
United Airlines UA8459
11:55
Ottawa Macdonald-Cartier (YOW)

13:04
Toronto Pearson (YYZ) 1
Effective 2026-09-08 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 453)
Duration: 1:09, non-stop
Airbus A220-300 (223)
Direct Codeshare Flights:
United Airlines UA8459
12:00
Ottawa Macdonald-Cartier (YOW)

13:07
Toronto Pearson (YYZ) 1
Effective 2026-03-29 through 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 451)
Duration: 1:07, non-stop
Airbus A220-300 (223)
Direct Codeshare Flights:
United Airlines UA8459
12:00
Ottawa Macdonald-Cartier (YOW)

13:10
Toronto Pearson (YYZ) 1
Effective 2026-05-01 through 2026-06-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 453)
Duration: 1:10, non-stop
Airbus A320 (320)
Direct Codeshare Flights:
United Airlines UA8459
12:00
Ottawa Macdonald-Cartier (YOW)

13:08
Toronto Pearson (YYZ) 1
Effective 2026-06-18 through 2026-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 453)
Duration: 1:08, non-stop
Airbus A320 (320)
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This flight number is listed as serving the following routes:
  • Ottawa Macdonald-Cartier (YOW) - Toronto Pearson (YYZ)
  • Washington Dulles (IAD) - Montreal-Trudeau (YUL)
All United Airlines flights
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