What is the cheapest airline that flies from Washington to San Antonio?

Frontier, American Airlines, and United Airlines are the most popular carriers operating from Washington to San Antonio

How long does it take to fly to San Antonio?

Flight times vary depending on what airport in State of Washington you fly out of and what airport in San Antonio you fly into. For example, flying from Seattle to Austin takes 3h 59m on average. On the other hand, flying from Spokane to Austin takes 5h 39m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

How many flights depart from State of Washington to San Antonio on average per day?

The number of flights available between State of Washington and San Antonio is 5 per day as of December 2025. The most frequent departure time is 11:00AM, with 59% of daily flights leaving at noon.

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 State of Washington according to our data. Alaska Airlines is the first choice among our users, with 50% 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 State of Washington to San Antonio on average per week?

The number of flights available between State of Washington and San Antonio is 38 per week as of December 2025. The most frequent departure day is Thu, with 26% of weekly flights leaving on this day.

When did momondo last update prices for flights from Washington to San Antonio Airport?

Prices for flights from Washington to San Antonio Airport refresh daily.

How many operators does momondo search for flights from Washington to San Antonio Airport?

As of December 2025, there are 8 operators available to choose from for flights from Washington to San Antonio Airport.

How old do you have to be to fly from Washington 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 Washington to San Antonio Airport.

What documentation or ID do you need to fly to San Antonio Airport?

The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$78 Cheap Flights from Washington to San Antonio in 2025/26

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One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:05 pm - 9:18 am

PDX

SAT

19h 13m1 stop

4:06 pm - 11:04 am

SAT

PDX

20h 58m1 stop

$178Frontier

Thu, Jan 8 - Thu, Jan 15

12:05 pm - 9:18 am

PDX

SAT

19h 13m1 stop

4:06 pm - 11:04 am

SAT

PDX

20h 58m1 stop

$179Frontier

Thu, Jan 8 - Thu, Jan 15

12:05 pm - 11:49 am

PDX

SAT

21h 44m2 stops

4:06 pm - 11:04 am

SAT

PDX

20h 58m1 stop

$198Frontier

Thu, Jan 8 - Thu, Jan 15

2:29 pm - 11:09 pm

SEA

SAT

6h 40m1 stop

7:00 pm - 11:51 pm

SAT

SEA

6h 51m1 stop

$206American Airlines

Fri, Jan 9 - Mon, Jan 12

7:13 pm - 5:37 am

SEA

SAT

8h 24m1 stop

3:55 pm - 9:04 am

SAT

SEA

19h 09m2 stops

$210Multiple Airlines

Tue, Jan 6 - Wed, Jan 7

6:33 pm - 5:37 am

SEA

SAT

9h 04m1 stop

3:55 pm - 9:04 am

SAT

SEA

19h 09m2 stops

$213Multiple Airlines

Mon, Jan 5 - Wed, Jan 7

4:55 pm - 12:41 am

SEA

SAT

5h 46m1 stop

4:42 pm - 11:25 pm

SAT

SEA

8h 43m1 stop

$215Delta

Mon, Feb 2 - Thu, Feb 12

11:09 am - 5:10 pm

SEA

SAT

4h 01mnonstop

6:06 pm - 8:43 pm

SAT

SEA

4h 37mnonstop

$216Alaska Airlines

Wed, Mar 4 - Tue, Mar 10

11:35 am - 9:28 pm

PSC

SAT

7h 53m1 stop

2:35 pm - 11:09 pm

SAT

PSC

10h 34m2 stops

$238Delta

Tue, Jan 13 - Sat, Jan 24

8:27 am - 5:45 pm

PSC

SAT

7h 18m1 stop

6:46 pm - 12:20 am

SAT

PSC

7h 34m1 stop

$282Alaska Airlines

Wed, Jan 28 - Sat, Jan 31

Frontier flights from State of Washington to San Antonio

Our best Frontier deals on State of Washington to San Antonio flight tickets

Frontier

Jan 8

PDX12:05 pmPortland

19h 13m

1 stop

SAT9:18 amSan Antonio

Jan 15

SAT4:06 pmSan Antonio

20h 58m

1 stop

PDX11:04 amPortland

$178

Find similar

Frontier

Jan 8

PDX12:05 pmPortland

19h 13m

1 stop

SAT9:18 amSan Antonio

Jan 15

SAT4:06 pmSan Antonio

20h 58m

1 stop

PDX11:04 amPortland

$179

Find similar

Frontier

Jan 8

PDX12:05 pmPortland

21h 44m

2 stops

SAT11:49 amSan Antonio

Jan 15

SAT4:06 pmSan Antonio

20h 58m

1 stop

PDX11:04 amPortland

$198

Find similar

American Airlines flights from State of Washington to San Antonio

Our best American Airlines deals on State of Washington to San Antonio flight tickets

American Airlines

Jan 9

SEA2:29 pmSeattle/Tacoma Intl

6h 40m

1 stop

SAT11:09 pmSan Antonio

Jan 12

SAT7:00 pmSan Antonio

6h 51m

1 stop

SEA11:51 pmSeattle/Tacoma Intl

$206

Find similar

American Airlines

Dec 28

SEA7:07 amSeattle/Tacoma Intl

9h 03m

1 stop

SAT6:10 pmSan Antonio

Jan 10

SAT6:00 amSan Antonio

6h 55m

1 stop

SEA10:55 amSeattle/Tacoma Intl

$278

Find similar

American Airlines

Jan 25

PSC2:47 pmPasco Tri Cities

6h 22m

1 stop

SAT11:09 pmSan Antonio

Jan 28

SAT6:14 amSan Antonio

9h 19m

2 stops

PSC1:33 pmPasco Tri Cities

$321

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Thu 1/8

12:05 pm-9:18 am

1 stop19h 13m

San Antonio

Thu 1/15

4:06 pm-11:04 am

1 stop20h 58m

$178

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Thu 1/8

12:05 pm-9:18 am

1 stop19h 13m

San Antonio

Thu 1/15

4:06 pm-11:04 am

1 stop20h 58m

$179

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Thu 1/8

12:05 pm-11:49 am

2 stops21h 44m

San Antonio

Thu 1/15

4:06 pm-11:04 am

1 stop20h 58m

$198

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Fri 1/9

2:29 pm-11:09 pm

1 stop6h 40m

San Antonio

Mon 1/12

7:00 pm-11:51 pm

1 stop6h 51m

$206

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Tue 1/6

7:13 pm-5:37 am

1 stop8h 24m

San Antonio

Wed 1/7

3:55 pm-9:04 am

2 stops19h 09m

$210

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Mon 1/5

6:33 pm-5:37 am

1 stop9h 04m

San Antonio

Wed 1/7

3:55 pm-9:04 am

2 stops19h 09m

$213

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Mon 2/2

4:55 pm-12:41 am

1 stop5h 46m

San Antonio

Thu 2/12

4:42 pm-11:25 pm

1 stop8h 43m

$215

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Wed 3/4

11:09 am-5:10 pm

Nonstop4h 01m

San Antonio

Tue 3/10

6:06 pm-8:43 pm

Nonstop4h 37m

$216

PascoSan Antonio

PSC - SAT

PSCSAT

Pasco Tri Cities

Tue 1/13

11:35 am-9:28 pm

1 stop7h 53m

San Antonio

Sat 1/24

2:35 pm-11:09 pm

2 stops10h 34m

$238

PascoSan Antonio

PSC - SAT

PSCSAT

Pasco Tri Cities

Wed 1/28

8:27 am-5:45 pm

1 stop7h 18m

San Antonio

Sat 1/31

6:46 pm-12:20 am

1 stop7h 34m

$282

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How to get the cheapest flight ticket from State of Washington 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

Prices

Airlines

Other information

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of August, then book flights to San Antonio from State of Washington during September instead. Flights to San Antonio in September, while not as cheap as those in August, still average around $257.

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 Wednesday when prices can be found for as low as $362. 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 $467.

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 in the afternoon. momondo users have found flights departing from State of Washington to San Antonio in the afternoon for as low as $277. 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 morning, with an average ticket price of $421. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Washington to San Antonio flight route?

Fly from Seattle/Tacoma Intl to San Antonio for the best Washington - 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 State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $345 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from State of Washington for as low as $247 on momondo.

What cabin class options are available on Washington to San Antonio flights?

There are 4 cabin classes available to choose from on Washington to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap State of Washington to San Antonio flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to San Antonio

Best Price Found	$148
Fastest flight time	4h 01m
Direct flights	Every day
Airports in San Antonio	1 airport

The best one-way flight to San Antonio from State of Washington in the past 72 hours is $148. The best round-trip flight deal from State of Washington to San Antonio found on momondo in the last 72 hours is $285.

The fastest flight from State of Washington to San Antonio takes 4h 01m

Direct flights go from State of Washington to San Antonio every day.

There is 1 airport in San Antonio. From State of Washington there are direct flights to San Antonio (SAT).

Search flight deals

When did momondo last update prices for flights from Washington to San Antonio Airport?
Prices for flights from Washington to San Antonio Airport refresh daily.
How many operators does momondo search for flights from Washington to San Antonio Airport?
As of December 2025, there are 8 operators available to choose from for flights from Washington to San Antonio Airport.
How old do you have to be to fly from Washington 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 Washington to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from State of Washington to San Antonio?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from State of Washington to San Antonio is Boeing 737 MAX 9 (38.95% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (20.00%), Boeing 737-800 Passenger/BBJ2 (winglets) (14.21%), and Boeing 737 (12.11%).

Best airlines flying from State of Washington to San Antonio

Compare and see reviews for airlines that fly from State of Washington to San Antonio with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $130	Free Cancellation	Rating 6.3 8,189 reviews	Search Spirit Airlines flights
Delta	PriceFrom $139	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
Frontier	PriceFrom $164	Free Cancellation	Rating 5.8 3,080 reviews	Search Frontier flights
Alaska Airlines	PriceFrom $168	Free Cancellation	Rating 8.0 11,479 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $185	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
Southwest	PriceFrom $194	Free Cancellation	Rating 7.9 4,252 reviews	Search Southwest flights
Hawaiian Airlines	PriceFrom $197	Free Cancellation	Rating 7.8 2,820 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $201	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights

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Pleasanton

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momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to San Antonio. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington to San Antonio with flexible booking policies on momondo?

All flight searches from Washington to San Antonio on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington to San Antonio?

Once all potential Washington to San Antonio flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington to San Antonio right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Antonio, momondo offers a useful price alert feature which will track prices for flights to San Antonio from Washington and alert you when they change.

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Cheap flights from Washington to San Antonio from $78

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to San Antonio departing on 1/5. 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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Frontier flights from State of Washington to San Antonio

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Use the filters below to find and compare flights from Washington to San Antonio that are best for you.

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How to get the cheapest flight ticket from State of Washington to San Antonio

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of August, then book flights to San Antonio from State of Washington during September instead. Flights to San Antonio in September, while not as cheap as those in August, still average around $257.

What is the cheapest day to depart on your flight to San Antonio?

What is the cheapest time of day to depart on your flight to San Antonio?

What is the cheapest Washington to San Antonio flight route?

Fly from Seattle/Tacoma Intl to San Antonio for the best Washington - San Antonio flight prices

How far in advance should I book a flight to San Antonio?

What cabin class options are available on Washington to San Antonio flights?

There are 4 cabin classes available to choose from on Washington 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 Washington to San Antonio?

Frontier, American Airlines, and United Airlines are the most popular carriers operating from Washington to San Antonio

What airlines fly to San Antonio?

How many flights depart from State of Washington to San Antonio on average per day?

The number of flights available between State of Washington and San Antonio is 5 per day as of December 2025. The most frequent departure time is 11:00AM, with 59% of daily flights leaving at noon.

How many flights depart from State of Washington to San Antonio on average per week?

The number of flights available between State of Washington and San Antonio is 38 per week as of December 2025. The most frequent departure day is Thu, with 26% of weekly flights leaving on this day.

How long does it take to fly to San Antonio?

Cheap State of Washington to San Antonio flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to San Antonio

Best Price Found

Fastest flight time

Direct flights

Airports in San Antonio

When did momondo last update prices for flights from Washington to San Antonio Airport?

How many operators does momondo search for flights from Washington to San Antonio Airport?

How old do you have to be to fly from Washington to San Antonio Airport?

What documentation or ID do you need to fly to San Antonio Airport?

What is the most popular plane model from State of Washington to San Antonio?

Best airlines flying from State of Washington to San Antonio

Compare and see reviews for airlines that fly from State of Washington to San Antonio with momondo

Traveling to a place near San Antonio?

Why use momondo?

Why should I use momondo to find a flight deal from Washington to San Antonio?

Can I find flights from Washington to San Antonio with flexible booking policies on momondo?

How can momondo help me find flights from Washington to San Antonio?

I’m not ready to book a flight from Washington to San Antonio right now. Can momondo alert me if prices change?

An easier way to manage your San Antonio trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Texas