Southwest AirlinesWN0% on time
Flights WN3113 05:00 Mo Th Fr · WN3409 09:05 Su · WN682 11:55 Sa · WN1970 13:30 Mo Th Fr
live
Direct flights from Seattle (SEA) to Dallas (DAL): 7 nonstop departures observed each week across 1 airline. 0% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 70 minutes late. No cancellations were recorded across the 5 tracked flights. 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 18 August 2026 at 20:18 UTC.
SEA
Seattle
busy · +19
DAL
Dallas
smooth · +0
2,684 km · ~3h 56m est.
Runs rough · 1 airline · 7x weekly · nonstop
0% on time
of the last 5 operated SEA → DAL flights arrived within 15 minutes
Median arrival delay is +70 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Search live fares for this route →Median arrival+70 minacross the last 5 operated legs
Flight time~3h 56mestimated from route distance
Weekly departures7x1 direct airline on the leg
Current nonstop fares
SEA → DAL · one way · economy · 1 adult
TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares
The week
scheduled departures · origin local time06121824
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 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at DAL: 42% odds of a 15+ minute delay and around +9 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Seattle to Dallas route actually runs
Pro Flight Search tracks every published board update for nonstop SEA to DAL flights: 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. Fares link straight to the operating airline with no markups.
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
How we measure this →
https://proflightsearch.com/search-flights/SEA-DAL
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 78/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SEA–DAL?
Operators schedule morning departures around 05:00 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 14 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
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