Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Seattle to San Antonio
The cheapest flights right now
Seattle – San Antonio
Outbound – Dec 5, 2026
direct
4h 1m Return – Dec 13, 2026
direct
4h 40m $387
3 days ago
Seattle – San Antonio
Outbound – Dec 5, 2026
1 stop
5h 53m DFW
Return – Dec 13, 2026
1 stop
6h 53m DFW
$231
3 days ago
Seattle – San Antonio
Outbound – Dec 5, 2026
1 stop
5h 53m DFW
Return – Dec 12, 2026
1 stop
6h 41m PHX
$273
3 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$249
Average price of a round trip
$281
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
4h10
A flight from Seattle to San Antonio takes on average 4h10.
Best time
August
According to user searches, the ideal month to go to San Antonio is August.
The best flight deals for a week
Seattle – San Antonio
Outbound – Dec 5, 2026
direct
4h 1m Return – Dec 13, 2026
direct
4h 40m $387
3 days ago
Seattle – San Antonio
Outbound – Dec 5, 2026
1 stop
5h 53m DFW
Return – Dec 13, 2026
1 stop
6h 53m DFW
$231
3 days ago
Seattle – San Antonio
Outbound – Dec 5, 2026
1 stop
5h 53m DFW
Return – Dec 12, 2026
1 stop
6h 41m PHX
$273
3 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Tips for finding a cheap flight from Seattle to San Antonio
Check out our tips for booking your flight to San Antonio (USA) from Seattle (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is May, with an average flight ticket price of $211 (calculation over the last two years). The most touristic season corresponds to the months of October, November and May.
For the cheapest flights, it is advisable to buy your ticket at least 37 days before the departure date.
The airline offering the cheapest flight tickets is Frontier Airlines. A ticket from the airline Frontier Airlines to San Antonio costs on average $274.
The airlines that offer the most flights are Alaska Airlines and Alaska Airlines.
Price of flight tickets from Seattle to San Antonio
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $249 to $382
- The average price of a flight ticket is about $281
- Prices are lowest for stays in the month of May
- The month in which booking a ticket is cheaper is: November
info departure city :
Seattle, USA
airports :
Kenmore Air Harbor Spb. (LKE)
Seattle-Tacoma International Airport (SEA)
Renton Municipal Airport (RNT)
King County International Airport (BFI)
local time :
Seattle is a city in the country USA, the time zone is [[timezone]]. In Seattle, it is currently {fromLocalTime}, the temperature is on average 15°C, with a minimum of 10°C and a maximum of 23°C.
The city of Seattle (SEA) has 4 airport(s): Kenmore Air Harbor Spb., Seattle-Tacoma, Renton and King County
destination info :
San Antonio, USA
airports :
San Antonio International Airport (SAT)
Stinson Municipal Airport (SSF)
Martindale Air Field (MDA)
local time :
San Antonio is in the country USA, the time zone is [[timezone]]. In San Antonio, it is currently {toLocalTime}, the temperature is on average 27°C, with a minimum of 22°C and a maximum of 33°C.
The city of San Antonio has 3 airport(s): San Antonio, Stinson and Martindale Air Field
Useful info about San Antonio
What is the least touristic period to go to San Antonio?
If you want to visit San Antonio during the least touristic period, choose the month of August.
What is the most popular time to travel to San Antonio?
In San Antonio, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Seattle to San Antonio?
According to our data, it is recommended to book your flight 37 days before your departure. If you book your flight ticket 6 weeks before your departure, you may find a price below average. You can also choose morning flights that are 10% cheaper than afternoon and evening flights. The cheapest day to book a flight from Seattle to San Antonio is Sunday.
What are the arrival and destination airports when traveling between Seattle and San Antonio?
When you leave, you can leave from Seattle-Tacoma, and you will arrive at San Antonio.
How to reach Seattle airport from the city centre?
The airport Kenmore Air Harbor Spb. is located 3 km, Seattle-Tacoma is located 16 km, Renton is located 16 km or King County is located 8 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Seattle to San Antonio?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Seattle and San Antonio?
In summer, the average temperature is 29°C in San Antonio and 18°C in Seattle. The average rainfall in summer is 57 mm in San Antonio and 38 mm in Seattle. In summer, it is warmer in San Antonio and it rains less in Seattle. In winter, it is colder in San Antonio and it rains more in Seattle.
