United Airlines
flight
UA 8458:
Chicago O'Hare - Montreal-Trudeau
Chicago O'Hare - Montreal-Trudeau
FLIGHT SCHEDULE
Direct Codeshare Flights:
United Airlines UA8458
Valid until 2026-01-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 8962)
Duration: 2:05, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8458
Effective 2026-01-09 through 2026-01-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by Air Canada.
(AC 8962)
Duration: 2:05, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8458
Effective 2026-01-18 through 2026-01-24
Mon
Tue
Wed
-
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 8962)
Duration: 2:05, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8458
Effective 2026-01-26 through 2026-02-02
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by Air Canada.
(AC 8962)
Duration: 2:05, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8458
Effective 2026-02-03 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 8962)
Duration: 2:05, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
United Airlines UA8458
Effective 2026-05-01 through 2026-06-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 8964)
Duration: 2:24, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
United Airlines UA8458
Effective 2026-06-18 through 2026-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 8964)
Duration: 2:28, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
United Airlines UA8458
Effective 2026-09-08 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 8964)
Duration: 2:18, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
United Airlines UA8458
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada.
(AC 8962)
Duration: 2:05, non-stop Canadair CRJ 900 (CR9)
- UA 8458 is an international flight departing from Chicago O'Hare airport, United States (ORD) and arriving at Montreal-Trudeau airport, Canada (YUL).
- The flight distance is 745 miles, or 1200 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 2:05 and 2:28.