Great-circle route DFW ↔ SEA. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
Frequencies below are per direction, from our most recent schedule sample.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| DFW → SEA Dallas to Seattle |
115/wk | Daily | Alaska Airlines, American Airlines, Delta Air Lines |
| SEA → DFW Seattle to Dallas |
115/wk | Daily | Alaska Airlines, American Airlines, Delta Air Lines |
Where a direction shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
In 2025, airlines reported 1,617,611 passengers on 10,373 flights between DFW and SEA — about 4,434 a day — filling 89% of the 1,817,295 seats flown. American Airlines Inc. carried the most passengers (57%).
Source: US DOT T-100 segment reports — actual airline-reported traffic, scheduled service only, both directions combined. Cargo and charter flights excluded.
3 airlines fly the DFW–SEA nonstop, including Alaska Airlines, American Airlines, Delta Air Lines.
Recent scheduled departures on this route have used the Boeing 737-900, Airbus A220-300, Airbus A321, Airbus A320 and 2 other types.
Aircraft assignments change by season and by time of day.
On a long east–west route like this one the two directions do not take the same time. Aircraft flying eastbound ride the mid-latitude jet stream and typically arrive earlier than the westbound leg, which flies into it. The difference is commonly 30 to 90 minutes on transatlantic and transpacific flights, and it varies by season. The estimate above does not model wind — treat it as a midpoint and check the airline's own timetable for the block time on your date.
The distance between Dallas Fort Worth International Airport and Seattle Tacoma International Airport is 1,658 miles, or 2,668 kilometres.
| Great-circle distance | 1,658 mi |
| Kilometres | 2,668 km |
| Nautical miles | 1,441 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 3 airlines fly the route nonstop, with about 230 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 3h 48m in the air. That is a great-circle estimate from the 1,658-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
About 115 a week from Dallas to Seattle and 115 a week from Seattle to Dallas, from our most recent schedule sample.
Alaska Airlines, American Airlines, Delta Air Lines.
In 2025, airlines reported 1,617,611 passengers on 10,373 scheduled flights between DFW and SEA — about 4,434 a day — filling 89% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Boeing 737-900, Airbus A220-300, Airbus A321, Airbus A320. Assignments change by season and by time of day.
