United Airlines flights from Chicago O'Hare (ORD) to Ottawa Macdonald-Cartier (YOW).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 18:00 Chicago O'Hare (ORD) 2 21:18 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3402 Non-stop Embraer EMB 175 (E7W) 2:18 Valid until 2026-02-11
Daily 18:04 Chicago O'Hare (ORD) 2 21:18 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3402 Non-stop Embraer EMB 175 (E7W) 2:14 Effective 2026-02-12 through 2026-03-28
Daily 18:20 Chicago O'Hare (ORD) 2 21:14 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3402 Non-stop Embraer EMB 175 (E7W) 1:54 Effective 2026-03-29 through 2026-04-29
Daily 18:20 Chicago O'Hare (ORD) 2 21:34 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3402 Non-stop Embraer EMB 175 (E7W) 2:14 Effective 2026-04-30 through 2026-05-20
Daily 18:20 Chicago O'Hare (ORD) 2 21:14 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3402 Non-stop Embraer EMB 175 (E7W) 1:54 Effective 2026-05-21 through 2026-10-24
Daily 18:20 Chicago O'Hare (ORD) 2 21:34 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3402 Non-stop Embraer EMB 175 (E7W) 2:14 Effective from 2026-10-25
Daily 13:55 Chicago O'Hare (ORD) 2 17:12 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3509 Non-stop Embraer EMB 175 (E7W) 2:17 Effective 2026-01-06 through 2026-02-03
Daily 13:55 Chicago O'Hare (ORD) 2 17:12 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3509 Non-stop Embraer EMB 175 (E7W) 2:17 Effective 2026-02-05 through 2026-02-11
Daily 13:55 Chicago O'Hare (ORD) 2 17:07 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3509 Non-stop Embraer EMB 175 (E7W) 2:12 Effective 2026-02-12 through 2026-03-04
Daily 14:00 Chicago O'Hare (ORD) 2 17:12 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3509 Non-stop Embraer EMB 175 (E7W) 2:12 Effective 2026-03-05 through 2026-03-28
Daily 14:00 Chicago O'Hare (ORD) 2 16:50 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3509 Non-stop Embraer EMB 175 (E7W) 1:50 Effective 2026-03-29 through 2026-04-29
Daily 14:00 Chicago O'Hare (ORD) 2 17:12 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3509 Non-stop Embraer EMB 175 (E7W) 2:12 Effective 2026-04-30 through 2026-05-20
Daily 14:00 Chicago O'Hare (ORD) 2 16:50 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3509 Non-stop Embraer EMB 175 (E7W) 1:50 Effective 2026-05-21 through 2026-10-24
Daily 14:00 Chicago O'Hare (ORD) 2 17:14 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3509 Non-stop Embraer EMB 175 (E7W) 2:14 Effective from 2026-10-25
Daily 14:01 Chicago O'Hare (ORD) 2 17:18 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3509 Non-stop Embraer EMB 175 (E7W) 2:17 Valid until 2026-01-05
Daily 07:25 Chicago O'Hare (ORD) 2 10:39 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3661 Non-stop Embraer EMB 175 (E7W) 2:14 Effective from 2026-10-25
Daily 10:53 Chicago O'Hare (ORD) 2 13:45 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3661 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-03-29 through 2026-04-29
Daily 10:53 Chicago O'Hare (ORD) 2 14:09 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3661 Non-stop Embraer EMB 175 (E7W) 2:16 Effective 2026-04-30 through 2026-05-20
Daily 10:53 Chicago O'Hare (ORD) 2 13:45 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 3661 Non-stop Embraer EMB 175 (E7W) 1:52 Effective 2026-05-21 through 2026-10-24
Daily 07:25 Chicago O'Hare (ORD) 2 10:26 Ottawa Macdonald-Cartier (YOW)
United Airlines UA 4496 Non-stop Canadair CRJ 550 (CR5) 2:01 Effective 2026-02-12 through 2026-03-28




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United Airlines flights from Chicago O'Hare (ORD) to Ottawa Macdonald-Cartier (YOW).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA3402
18:00
Chicago O'Hare (ORD) 2

21:18
Ottawa Macdonald-Cartier (YOW)
Valid until 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3402
18:04
Chicago O'Hare (ORD) 2

21:18
Ottawa Macdonald-Cartier (YOW)
Effective 2026-02-12 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:14, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3402
18:20
Chicago O'Hare (ORD) 2

21:14
Ottawa Macdonald-Cartier (YOW)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:54, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3402
18:20
Chicago O'Hare (ORD) 2

21:34
Ottawa Macdonald-Cartier (YOW)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:14, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3402
18:20
Chicago O'Hare (ORD) 2

21:14
Ottawa Macdonald-Cartier (YOW)
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:54, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3402
18:20
Chicago O'Hare (ORD) 2

21:34
Ottawa Macdonald-Cartier (YOW)
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:14, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3509
13:55
Chicago O'Hare (ORD) 2

17:12
Ottawa Macdonald-Cartier (YOW)
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:17, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3509
13:55
Chicago O'Hare (ORD) 2

17:12
Ottawa Macdonald-Cartier (YOW)
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:17, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3509
13:55
Chicago O'Hare (ORD) 2

17:07
Ottawa Macdonald-Cartier (YOW)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:12, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3509
14:00
Chicago O'Hare (ORD) 2

17:12
Ottawa Macdonald-Cartier (YOW)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:12, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3509
14:00
Chicago O'Hare (ORD) 2

16:50
Ottawa Macdonald-Cartier (YOW)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:50, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3509
14:00
Chicago O'Hare (ORD) 2

17:12
Ottawa Macdonald-Cartier (YOW)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:12, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3509
14:00
Chicago O'Hare (ORD) 2

16:50
Ottawa Macdonald-Cartier (YOW)
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:50, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3509
14:00
Chicago O'Hare (ORD) 2

17:14
Ottawa Macdonald-Cartier (YOW)
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:14, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3509
14:01
Chicago O'Hare (ORD) 2

17:18
Ottawa Macdonald-Cartier (YOW)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:17, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3661
07:25
Chicago O'Hare (ORD) 2

10:39
Ottawa Macdonald-Cartier (YOW)
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:14, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3661
10:53
Chicago O'Hare (ORD) 2

13:45
Ottawa Macdonald-Cartier (YOW)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:52, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3661
10:53
Chicago O'Hare (ORD) 2

14:09
Ottawa Macdonald-Cartier (YOW)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:16, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA3661
10:53
Chicago O'Hare (ORD) 2

13:45
Ottawa Macdonald-Cartier (YOW)
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:52, non-stop
Embraer EMB 175 (E7W)
Direct Flights:
United Airlines UA4496
07:25
Chicago O'Hare (ORD) 2

10:26
Ottawa Macdonald-Cartier (YOW)
Effective 2026-02-12 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:01, non-stop
Canadair CRJ 550 (CR5)
  • An international route departing from Chicago O'Hare airport, United States (ORD) and arriving at Ottawa Macdonald-Cartier airport, Canada (YOW).
  • The flight distance is 653 miles, or 1050 km.
  • The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 1:50 and 2:18.
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