St. Louis Lambert International ⇄ Montreal STL–YUL
Airlines flew 251 flights between St. Louis Lambert International STL in St Louis, MO and Montreal, Canada YUL in Montreal, CA in the twelve months to July 2026, both directions together: 16,579 passengers in 23,191 seats, 71% of them filled. 970 miles, about 1 minutes in the air, on 4 airlines: Jazz Aviation LP (186), Air Canada (62), Sun Country Airlines d/b/a MN Airlines (2), Flair Airlines Ltd. (1).
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 4/25 | 1 |
| 5/25 | 63 |
| 6/25 | 59 |
| 7/25 | 46 |
| 8/25 | 51 |
| 9/25 | 52 |
| 10/25 | 29 |
| 12/25 | 1 |
| 5/26 | 62 |
| 6/26 | 1 |
| 7/26 | 55 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 4/25 | 68 |
| 5/25 | 5,320 |
| 6/25 | 6,696 |
| 7/25 | 2,893 |
| 8/25 | 2,699 |
| 9/25 | 3,102 |
| 10/25 | 1,782 |
| 12/25 | 50 |
| 5/26 | 5,185 |
| 6/26 | 69 |
| 7/26 | 3,692 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Jazz Aviation LP QK | 186 | 11,225 | 79% | scheduled passenger service |
| Air Canada AC | 62 | 5,185 | 61% | scheduled passenger service |
| Sun Country Airlines d/b/a MN Airlines SY | 2 | 119 | 32% | charter passenger service |
| Flair Airlines Ltd. 07Q | 1 | 50 | 26% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Canadair CRJ 900 | 178 | 76 | 10,747 |
| A220-300 BD-500-1A11 | 62 | 137 | 5,185 |
| Embraer ERJ-175 | 8 | 76 | 478 |
| Boeing 737-800 | 2 | 186 | 119 |
| Boeing B737 Max 800 | 1 | 189 | 50 |
STL → YUL this direction alone · flown May 2025 to July 2026
124 flights, 8,913 passengers in 11,425 seats. Jazz Aviation LP 92; Air Canada 31; Sun Country Airlines d/b/a MN Airlines 1.
YUL → STL this direction alone · flown April 2025 to July 2026
127 flights, 7,666 passengers in 11,766 seats. Jazz Aviation LP 94; Air Canada 31; Flair Airlines Ltd. 1; Sun Country Airlines d/b/a MN Airlines 1.
Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: St. Louis Lambert International STL and Montreal, Canada YUL; all routes.