✈ SEA → DFW
3H 56M FROM SEATTLE TO DALLAS. THAT'S A WORK SHIFT.
Flight from Seattle to Dallas
From Sea-Tac (SEA), USA North America → Dallas/Fort Worth (DFW), USA North America
How long is the flight from Seattle to Dallas?
A nonstop flight from Seattle (SEA) to Dallas (DFW) takes about 3 hours 56 minutes, covering a great-circle distance of 1,658 miles (2,668 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
3h 56m
Nonstop, scheduled
Distance
1,658 mi
2,668 km · great-circle
Avg speed
680 km/h
Door-to-door including taxi
Time zones & jet lag
Seattle timezone
UTC-7
America/Los_Angeles
Dallas timezone
UTC-5
America/Chicago
Time difference
+2h
2 hours ahead
Jet lag (rough)
~2d
Eastward — worse
CO₂ footprint per passenger
Economy class, single passenger. Source: DEFRA 2024 averages.
This flight emits roughly 3× the CO₂ of an equivalent train trip and 0.7× a car driven alone over the same distance.