SEA → DALSeattle to Dallas

live

Direct flights from Seattle (SEA) to Dallas (DAL): 4 nonstop departures observed each week across 1 airline. 43% of the last 7 operated flights arrived within 15 minutes of schedule. The median arrival is 20 minutes late. 1 of the 7 tracked flights was cancelled. The nonstop covers 2,684 km, an estimated 3 hours 56 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Dallas. Updated 10 October 2026 at 21:22 UTC.

SEA Seattle busy · +17
DAL Dallas busy · +15
2,684 km · ~3h 56m est.
dep bank 12:50–15:104x weekly
Runs rough · 1 airline · 4x weekly · nonstop
43% on time

of the last 7 operated SEA → DAL flights arrived within 15 minutes

Median arrival delay is +20 min. 1 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+20 minacross the last 7 operated legs
Flight time~3h 56mestimated from route distance
Weekly departures4x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Southwest AirlinesWN43% on time

Flights WN1704 12:50 Sa · WN1151 15:10 Mo Th Fr

History

operated legs · board outcomes
10-09WN1151arrived+32
10-08WN1151arrived−3
10-07WN2582cancelledCNX
10-06WN2582arrived−19
10-05WN1151arrived+20
10-04WN3203arrived+2
10-03WN1704arrived+99

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
SEASeattle +17 min busy Full SEA delay board →
DALDallas +15 min busy Full DAL delay board →

Weather lens

Current conditions put the pressure at DAL: 40% odds of a 15+ minute delay, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Seattle to Dallas route actually runs

Pro Flight Search records official board updates for nonstop SEA to DAL flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Seattle (SEA) to Dallas (DAL) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/SEA-DAL
How we measure this →

SEA to DAL questions

Is SEA–DAL running on time right now?

Mostly on schedule. The departure side at SEA is the weaker end, route health score 79/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on SEA–DAL?

Operators schedule 2 departures from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the DAL delay card to confirm conditions when you'd arrive.

How long is the flight from SEA to DAL?

Great-circle distance is 2,684 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 219–260 min gate-to-gate on this route.

How often does SEA–DAL fly?

Southwest Airlines runs the route with about 4 flights a week (mon, thu, fri, sat). Since one carrier owns the route, a single disruption tends to ripple through the day.