United Airlines flight UA 6645: Montreal-Trudeau - Saint Louis

Ad box here 1220564027 I FlightWNum Top Box
Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 18:10 Montreal-Trudeau (YUL) 19:58 Saint Louis (STL) 1
UA 6645 Non-stop Airbus A220-300 (223) 2:48 Valid until 2025-06-29
Codeshare flight, operated by Air Canada.(AC 1177)
Daily 18:10 Montreal-Trudeau (YUL) 20:00 Saint Louis (STL) 1
UA 6645 Non-stop Canadair CRJ 900 (CR9) 2:50 Effective 2025-06-30 through 2025-09-01
Codeshare flight, operated by Air Canada.(AC 8687)
Daily 18:10 Montreal-Trudeau (YUL) 19:57 Saint Louis (STL) 1
UA 6645 Non-stop Canadair CRJ 900 (CR9) 2:47 Effective 2025-09-02 through 2025-10-14
Codeshare flight, operated by Air Canada.(AC 8687)
Ad flat here 1377413384 I FlightWNum Lower
Parallax here YUL-STL
United Airlines flight UA 6645:
Montreal-Trudeau - Saint Louis
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Codeshare Flights:

United Airlines UA6645
Valid until 2025-06-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 1177)
Duration: 2:48, non-stop
Airbus A220-300 (223)

United Airlines UA6645
Effective 2025-06-30 through 2025-09-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 8687)
Duration: 2:50, non-stop
Canadair CRJ 900 (CR9)

United Airlines UA6645
Effective 2025-09-02 through 2025-10-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 8687)
Duration: 2:47, non-stop
Canadair CRJ 900 (CR9)
Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box
Parallax here YUL-STL
  • UA 6645 is an international flight departing from Montreal-Trudeau airport, Canada (YUL) and arriving at Saint Louis airport, United States (STL).
  • The flight distance is 967 miles, or 1557 km.
  • The timezone of the departure airport is UTC-5 (plus 1h DST), and the timezone of the arrival airport is UTC-6 (plus 1h DST). Current time at the point of departure is 9:47am, and 8:47am at the point of arrival. There is a -1 hour time difference between the airports.
  • For direct flights, the flight time varies between 2:47 and 2:50.