Seattle to San Antonio 🇺🇸
Cheapest fare
$255
Fastest
5h 7m
Direct from
No direct
Dates tracked
3
Cheapest fare
$255
Mon, Oct 26 · 1 stop · 5h 27m · Frontier Airlines
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Price calendar
Cheapest round-trip fare by departure day Cheap Average Pricey
October 2026
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Price trend
Price alert
Cheapest day to fly
Monday
Averages $255, vs $343 on Sundays.
Work-hours calculator
This flight to San Antonio costs you 17h of work.
Same money as
3
SUV fuel tanks
14
large pizzas
20
cinema tickets
43
fancy coffees
Airlines on this route
Frontier Airlines
from $255 · 3 dates
Destination guide
Discover San Antonio
About San Antonio
San Antonio ( SAN an-TOH-nee-oh; Spanish for "Saint Anthony") is a city in the southern part of the U.S. state of Texas. It is the seventh-most populous city in the United States, the second-most populous city in Texas (after Houston), and the second-most populous city in the Southern U.S., with a population of 1.43 million at the 2020 census. The Greater San Antonio metropolitan area, with an estimated 2.76 million residents, ranks as the third-largest metropolitan area in Texas and the 24th-largest in the nation.
Text from Wikipedia — San Antonio, licensed CC BY-SA 4.0.
All dates
Every fare, by date
| Departs | Return | Airline | Stops | Price |
|---|---|---|---|---|
| Mon, Oct 26 | Sat, Oct 31 | Frontier Airlines | 1 stop | $255 |
| Sat, Oct 31 | Thu, Nov 5 | Frontier Airlines | 1 stop | $285 |
| Sun, Nov 1 | Thu, Nov 5 | Frontier Airlines | 1 stop | $343 |
Also cheap
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FAQ
Seattle to San Antonio: answers
How much is a flight from Seattle to San Antonio?+
The cheapest fare we see right now is $255 round trip on Mon, Oct 26 with Frontier Airlines.
Are there direct flights from Seattle to San Antonio?+
We haven't seen a direct fare recently; the best options have 1+ stop.
How long is the flight from Seattle to San Antonio?+
The fastest itinerary we track takes about 5h 7m door to door.
What is the cheapest day to fly to San Antonio?+
Monday departures are the cheapest on average right now, Sunday the most expensive.
