Cheapest€220.80
- Delta Air Lines DA946916:563h 57m20:53Seattle SEADallas DAL
Door to door 7h 7mCO2 684.6 kgChanges 0Fixed, no changes
Seattle to Dallas flight
Flights from Seattle to Dallas start at €259.74 and take 7h 4m at their fastest.
The Flights from Seattle to Dallas starts at €259.74 and takes 7h 4m door to door, run by 5 operators over 2,783 km, with around 30 departures a day. Fares bottom out about 60 days before departure.
- 7h 4mDoor to door
- 3h 54mMoving
- €259.74From
- 684.6 kgCO2
The cheapest and the fastest on September 29, 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€236.14
- Asiana Airlines AA191716:453h 54m20:39Seattle SEADallas DAL
Door to door 7h 4mCO2 684.6 kgChanges 0Fixed, no changes
Airlines
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From |
|---|---|
 American Airlines | €223.75 |
 Alaska Airlines | €222.57 |
 Delta Air Lines | €220.80 |
 Asiana Airlines | €220.80 |
 Southwest Airlines | €223.75 |
The trip ends at Loop 12. Everything past the gates belongs to somebody else, the rooms included.
A room in Dallas for the night the flight gets in
Sort by distance from Loop 12 and you can see which places are ten minutes on foot and which are not.
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When to book Seattle to Dallas
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €293.9690 days
- €162.9860 days
- €178.9145 days
- €205.4630 days
- €249.7121 days
- €323.4614 days
- €398.397 days
- €403.703 days
- €611.381 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €162.98.
- How much it moves
- The gap between the cheapest and most expensive lead time is 275 percent. The most expensive point is €611.38, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €309.30Sun
- €264.46Mon
- €259.74Tue
- €278.03Wed
- €373.02Thu
- €323.46Fri
- €332.31Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Seattle
Air
- SEA
- BFI
Dallas
Air
- DFW
- DAL
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- How far it really runs
- The route covers 2,783 km against 2,702 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- First and last departure
- The first service of the day leaves Seattle at 06:03 and the last at 19:45, across 30 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Seattle to Dallas
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from Seattle to Dallas take?
The Flight from Seattle to Dallas takes 7h 4m door to door, of which 3h 54m is spent moving. The route runs 2,783 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Seattle to Dallas cost?
The Flight from Seattle to Dallas starts at €259.74 for one passenger, checked on September 29, 2026. A typical fare is €269.77. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Seattle to Dallas?
5 operators run the Flight from Seattle to Dallas: American Airlines, Alaska Airlines, Delta Air Lines, Asiana Airlines, Southwest Airlines. Between them they file around 30 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Seattle to Dallas use?
The Flight from Seattle to Dallas leaves from Seattle SEA and arrives at Dallas DAL. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from Seattle to Dallas?
Fares for the Flight from Seattle to Dallas bottom out around 60 days ahead, at €162.98. The gap between the cheapest and most expensive lead time across the window is 275 percent, measured on September 29, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Seattle to Dallas produce?
The Flight from Seattle to Dallas produces about 684.6 kg of CO2 per passenger over 2783 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Seattle to Dallas on September 11, 2026: 2783 km of route against 2702 km in a straight line, 30 services a day, 5 operators, a cheapest fare of €259.74, and 7h 4m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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