Seattle-Tacoma International ⇄ San Antonio International SEA–SAT
Airlines flew 1,116 flights between Seattle-Tacoma International SEA in Seattle, WA and San Antonio International SAT in San Antonio, TX in the twelve months to July 2026, both directions together: 161,653 passengers in 196,507 seats, 82% of them filled, and 134,995 pounds of freight. 1,774 miles, about 210 minutes in the air, on 5 airlines: Alaska Airlines Inc. (1,108), Delta Air Lines Inc. (4), Atlas Air Inc. (2), American Airlines Inc. (1) and 1 more. Planning to fly it yourself? The weather and winds along this route right now.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 57 |
| 2/25 | 48 |
| 3/25 | 88 |
| 4/25 | 117 |
| 5/25 | 120 |
| 6/25 | 121 |
| 7/25 | 120 |
| 8/25 | 112 |
| 9/25 | 94 |
| 10/25 | 104 |
| 11/25 | 97 |
| 12/25 | 105 |
| 1/26 | 74 |
| 2/26 | 56 |
| 3/26 | 62 |
| 4/26 | 63 |
| 5/26 | 104 |
| 6/26 | 123 |
| 7/26 | 122 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 8,529 |
| 2/25 | 7,538 |
| 3/25 | 12,080 |
| 4/25 | 15,078 |
| 5/25 | 15,858 |
| 6/25 | 17,540 |
| 7/25 | 18,175 |
| 8/25 | 16,228 |
| 9/25 | 12,692 |
| 10/25 | 14,108 |
| 11/25 | 13,227 |
| 12/25 | 14,745 |
| 1/26 | 10,596 |
| 2/26 | 9,054 |
| 3/26 | 10,067 |
| 4/26 | 9,468 |
| 5/26 | 14,369 |
| 6/26 | 18,165 |
| 7/26 | 18,934 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Alaska Airlines Inc. AS | 1,108 | 161,043 | 82% | scheduled passenger service |
| Delta Air Lines Inc. DL | 4 | 387 | 79% | scheduled passenger service |
| Atlas Air Inc. 5Y | 2 | 0 | 0% | charter passenger service |
| American Airlines Inc. AA | 1 | 60 | 32% | scheduled passenger service |
| United Air Lines Inc. UA | 1 | 163 | 91% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-900ER | 538 | 178 | 79,847 |
| Boeing B737 Max 900 | 459 | 178 | 66,632 |
| Boeing 737-800 | 70 | 160 | 9,599 |
| Boeing B737 Max 800 | 41 | 161 | 4,965 |
| A220-300 BD-500-1A11 | 2 | 130 | 251 |
| Boeing 747-400 | 2 | 189 | 0 |
| Boeing 737-900 | 1 | 179 | 163 |
| Airbus Industrie A320-100/200 | 1 | 157 | 136 |
| Airbus Industrie A321Neoxlr | 1 | 190 | 60 |
| Boeing 757-200 | 1 | 72 | 0 |
SEA → SAT this direction alone · flown January 2025 to July 2026
562 flights of 562 scheduled, 81,991 passengers in 98,958 seats, 75,823 pounds of freight. Alaska Airlines Inc. 556; Delta Air Lines Inc. 3; Atlas Air Inc. 1; American Airlines Inc. 1; United Air Lines Inc. 1.
SAT → SEA this direction alone · flown January 2025 to July 2026
554 flights of 563 scheduled, 79,662 passengers in 97,549 seats, 59,172 pounds of freight. Alaska Airlines Inc. 552; Atlas Air Inc. 1; 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: Seattle-Tacoma International SEA and San Antonio International SAT; all routes.