Cheap flights from Seattle to San Antonio from $79
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to San Antonio departing on 4/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Spirit Airlines flights from Seattle to San Antonio
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Delta flights from Seattle to San Antonio
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How to get the cheapest flight ticket from Seattle to San Antonio
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Seattle and San Antonio?
What is the cheapest month to fly to San Antonio?
If you aren’t able to travel during the month of January, then book flights to San Antonio from Seattle during September instead. Flights to San Antonio in September, while not as cheap as those in January, still average around $322.
What is the cheapest day to depart on your flight to San Antonio?
The cheapest day to depart on your flight to San Antonio is on a Tuesday when prices can be found for as low as $376. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $484.
What is the cheapest time of day to depart on your flight to San Antonio?
According to our data, the cheapest time of day to fly to San Antonio is at noon. momondo users have found flights departing from Seattle to San Antonio at noon for as low as $305. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the afternoon, with an average ticket price of $442. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Seattle/Tacoma Intl to San Antonio flight route?
Fly from Seattle/Tacoma Intl to San Antonio for the best Seattle/Tacoma Intl - San Antonio flight prices
How far in advance should I book a flight to San Antonio?
You are more likely to see cheaper flights to San Antonio from Seattle when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $348 when searching 13 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Seattle for as low as $264 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to San Antonio flights?
There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Seattle/Tacoma Intl to San Antonio?
Spirit Airlines, Delta, and Southwest are the most popular carriers operating from Seattle/Tacoma Intl to San Antonio
What airlines fly to San Antonio?
Alaska Airlines, Delta and American Airlines are the top three most popular airlines that fly to San Antonio from Seattle according to our data. Alaska Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 8 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seattle to San Antonio on average per day?
As of March 2025, 5 flights take off from Seattle and land in San Antonio each day. The most common flight departure time for this route is 11:00PM, with 65% of daily flights taking off in the evening.
How many flights depart from Seattle to San Antonio on average per week?
The number of flights available between Seattle and San Antonio is 41 per week as of March 2025. The most frequent departure day is Thu, with 20% of weekly flights leaving on this day.
When to book flights from Seattle to San Antonio
Cheap Seattle to San Antonio (SEA to SAT) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to San Antonio
How far is Seattle/Tacoma Intl to San Antonio by plane?
There are 1785.1 mi between Seattle/Tacoma Intl and San Antonio. A reasonable flight in good conditions will take 3h 59m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to San Antonio Airport?
Prices for flights from Seattle/Tacoma Intl Airport to San Antonio Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to San Antonio Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to San Antonio Airport is 8 as of March 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to San Antonio Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The travel and health documents you'll need for your trip to San Antonio Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Antonio Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to San Antonio?
momondo data reveals that the most frequently booked plane model on the route from Seattle to San Antonio is Boeing 737 MAX 9, representing 51.03% of all bookings. The subsequent popular models are Boeing 737-900 Passenger/BBJ3 (winglets) at 17.95%, Boeing 737-800 Passenger/BBJ2 (winglets) at 10.26%, and Boeing 737 at 6.92%.
What is the most popular airline from Seattle to San Antonio?
momondo data reveals that the most frequently booked airline on the route from Seattle to San Antonio is Alaska Airlines, representing 54% of all bookings. The subsequent popular airlines are Delta at 17%, American Airlines at 15%, and United Airlines at 5%.
Best airlines flying from Seattle to San Antonio
Compare and see reviews for airlines that fly from Seattle to San Antonio with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $107 | Free Cancellation | Rating 6.3 7,882 reviews | |||
| PriceFrom $129 | Free Cancellation | Rating 6.0 3,271 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 8.0 7,895 reviews | |||
| PriceFrom $196 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $216 | Free Cancellation | Rating 7.4 8,603 reviews | |||
| PriceFrom $222 | Free Cancellation | Rating 7.9 2,336 reviews | |||
| PriceFrom $232 | Free Cancellation | Rating 8.0 9,798 reviews | |||
| PriceFrom $274 | Free Cancellation | Rating 8.0 4,274 reviews |
Alaska Airlines Flights From Seattle to San Antonio
Alaska Airlines operates around 11 flights from Seattle to San Antonio every week. The average price of these flights found in the last 72 hours has been $413, but momondo users have found Alaska Airlines deals from Seattle to San Antonio from as low as $232 round-trip. Alaska Airlines has been scored 8.0/10 in 9,798 reviews.
Hawaiian Airlines Flights From Seattle to San Antonio
Hawaiian Airlines (7.9/10 from 2,336 reviews) operates around 11 flights from Seattle to San Antonio in any given week. The average Hawaiian Airlines airfare for this route is around $362, with deals from around $222 rare but found on momondo. Referenced prices are for round-trip Seattle to San Antonio flight searches in the last 72 hours.
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Why should I use momondo to find a flight deal from Seattle to San Antonio?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to San Antonio. momondo saves you time and could save you money on your trip.
Can I find flights from Seattle to San Antonio with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Seattle to San Antonio flights to just show those with flexible booking policies.
How can momondo help me find flights from Seattle to San Antonio?
momondo helps you find the best flight between Seattle and San Antonio by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Seattle to San Antonio right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to San Antonio from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.