The observed direct connection between Seattle–Tacoma International Airport (SEA) and Dallas Fort Worth International Airport (DFW) covers approximately 1,658 mi. The estimated flight time is around 3h 50m. Alaska Airlines, American Airlines, Delta Air Lines and Frontier Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
How far is Seattle from Dallas-Fort Worth by air?
The great-circle distance between Seattle–Tacoma International Airport and Dallas Fort Worth International Airport is approximately 1,658 mi.
How long is the flight from Seattle to Dallas-Fort Worth?
Based on the distance, the estimated flight time is about 3h 50m. This is an estimate, not a schedule.
Is there a direct connection from Seattle to Dallas-Fort Worth?
Yes, a direct connection between SEA and DFW has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Alaska Airlines, American Airlines, Delta Air Lines and Frontier Airlines.
How often is there a flight from Seattle to Dallas-Fort Worth?
On average around 13.5 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 4,772 observed flights. Mainly American Airlines, Alaska Airlines, Delta Air Lines. That is an observation, not a timetable.
What is the current time difference between Seattle and Dallas-Fort Worth?
Dallas-Fort Worth is currently 2 hours ahead of Seattle.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.