SEA → SATSeattle to San Antonio

live

Direct flights from Seattle (SEA) to San Antonio (SAT): 10 nonstop departures observed each week across 2 airlines. The median arrival is 6 minutes late. No cancellations were recorded across the 1 tracked flight. The nonstop covers 2,854 km, an estimated 4 hours 10 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and San Antonio. Updated 9 September 2026 at 18:23 UTC.

SEA Seattle heavy · +33
SAT San Antonio smooth · +0
2,854 km · ~4h 10m est.
dep bank 10:00–13:4010x weekly
Running clean · 2 airlines · 10x weekly · nonstop
78 / 100

route health from live SEA and SAT delay boards

Median arrival delay is +6 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+6 minacross the last 1 operated legs
Flight time~4h 10mestimated from route distance
Weekly departures10x2 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesSouthwest 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
Alaska AirlinesAS

Flights AS494 10:00 daily

Southwest AirlinesWN

Flights WN1663 10:20 Sa · WN1361 13:40 Tu We

History

operated legs · board outcomes
09-08AS494arrived+6

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 +33 min heavy 🌤 scattered clouds · 6 kt Full SEA delay board →
SATSan Antonio +0 min smooth 🌤 scattered clouds · S 7 kt Full SAT delay board →

Weather lens

Current conditions put the pressure at SEA and SAT: 38% 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 →

How the Seattle to San Antonio route actually runs

Pro Flight Search records official board updates for nonstop SEA to SAT 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 San Antonio (SAT) route reliability, measured from operated flights on official airport boards.

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

SEA to SAT questions

Is SEA–SAT 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–SAT?

Operators schedule morning departures around 10:00 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SAT delay card to confirm conditions when you'd arrive.

How long is the flight from SEA to SAT?

Great-circle distance is 2,854 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 231–275 min gate-to-gate on this route.

How often does SEA–SAT fly?

2 carriers operate this route, around 10 flights a week between them. Compare carrier days and times in the airline list above.