Toronto ⇄ Seattle-Tacoma International YYZ–SEA
Airlines flew 1,360 flights between Toronto, Canada YYZ in Toronto, CA and Seattle-Tacoma International SEA in Seattle, WA in the twelve months to July 2026, both directions together: 175,550 passengers in 219,439 seats, 80% of them filled, and 5,743 pounds of freight. 2,061 miles, about 154 minutes in the air, on 5 airlines: Alaska Airlines Inc. (731), Air Canada (623), Westjet (4), JetBlue Airways (1) and 1 more.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 123 |
| 2/25 | 103 |
| 3/25 | 122 |
| 4/25 | 120 |
| 5/25 | 123 |
| 6/25 | 120 |
| 7/25 | 124 |
| 8/25 | 114 |
| 9/25 | 112 |
| 10/25 | 130 |
| 11/25 | 115 |
| 12/25 | 119 |
| 1/26 | 113 |
| 2/26 | 108 |
| 3/26 | 124 |
| 4/26 | 118 |
| 5/26 | 123 |
| 6/26 | 60 |
| 7/26 | 124 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 11,794 |
| 2/25 | 9,189 |
| 3/25 | 11,911 |
| 4/25 | 13,109 |
| 5/25 | 15,162 |
| 6/25 | 16,141 |
| 7/25 | 18,818 |
| 8/25 | 18,259 |
| 9/25 | 17,203 |
| 10/25 | 16,797 |
| 11/25 | 12,452 |
| 12/25 | 14,383 |
| 1/26 | 11,831 |
| 2/26 | 10,678 |
| 3/26 | 14,561 |
| 4/26 | 15,451 |
| 5/26 | 17,090 |
| 6/26 | 9,332 |
| 7/26 | 17,513 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Alaska Airlines Inc. AS | 731 | 105,029 | 81% | scheduled passenger service |
| Air Canada AC | 623 | 69,855 | 79% | scheduled passenger service |
| Westjet WS | 4 | 479 | 73% | scheduled passenger service |
| JetBlue Airways B6 | 1 | 144 | 72% | charter passenger service |
| Delta Air Lines Inc. DL | 1 | 43 | 24% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| A220-300 BD-500-1A11 | 519 | 137 | 54,007 |
| Boeing 737-900ER | 397 | 178 | 56,958 |
| Boeing B737 Max 900 | 317 | 178 | 45,882 |
| Boeing 737-800 | 121 | 168 | 17,998 |
| Boeing 737-700/700LR/Max 7 | 3 | 127 | 274 |
| Boeing B737 Max 800 | 2 | 174 | 287 |
| Airbus Industrie A321Neoxlr | 1 | 200 | 144 |
YYZ → SEA this direction alone · flown January 2025 to July 2026
680 flights of 369 scheduled, 88,294 passengers in 109,688 seats, 2,502 pounds of freight. Alaska Airlines Inc. 365; Air Canada 312; Westjet 2; JetBlue Airways 1.
SEA → YYZ this direction alone · flown January 2025 to July 2026
680 flights of 368 scheduled, 87,256 passengers in 109,751 seats, 3,241 pounds of freight. Alaska Airlines Inc. 366; Air Canada 311; Westjet 2; Delta Air Lines Inc. 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: Toronto, Canada YYZ and Seattle-Tacoma International SEA; all routes.