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 49% 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 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 4h on average. On the other hand, flying from Pasco to Austin takes 5h 10m 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 6 per day as of October 2025. The most frequent departure time is 5:00PM, with 100% of daily flights leaving in the afternoon.

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

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

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 43 per week as of October 2025. The most frequent departure day is Mon, with 19% 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 October 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.

$59 Cheap Flights from Washington to San Antonio in 2025/26

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:14 pm - 9:18 amPDX-SAT

16h 04m1 stop

7:14 pm - 11:57 amSAT-PDX

18h 43m1 stop

$109Frontier

Find Deal

Thu, Dec 4 - Thu, Dec 11

12:52 pm - 7:30 pmPDX-SAT

28h 38m1 stop

8:25 pm - 11:56 amSAT-PDX

17h 31m1 stop

$153Frontier

Find Deal

Thu, Nov 13 - Mon, Nov 17

7:29 pm - 11:45 pmPDX-SAT

26h 16m2 stops

8:25 pm - 11:56 amSAT-PDX

17h 31m1 stop

$184Multiple Airlines

Find Deal

Mon, Nov 10 - Mon, Nov 17

1:43 pm - 10:56 pmSEA-SAT

7h 13m1 stop

6:00 pm - 10:46 pmSAT-SEA

6h 46m1 stop

$210United Airlines

Find Deal

Thu, Nov 6 - Mon, Nov 10

6:02 pm - 12:05 amSEA-SAT

4h 03mnonstop

3:12 pm - 11:57 amSAT-SEA

22h 45m1 stop

$212Multiple Airlines

Find Deal

Sun, Nov 2 - Sat, Nov 8

12:31 am - 9:34 amSEA-SAT

7h 03m1 stop

5:52 pm - 11:01 pmSAT-SEA

7h 09m1 stop

$215American Airlines

Find Deal

Wed, Dec 3 - Thu, Dec 11

2:55 pm - 10:59 pmSEA-SAT

6h 04m1 stop

8:21 pm - 12:58 amSAT-SEA

6h 37m1 stop

$216American Airlines

Find Deal

Mon, Nov 3 - Sun, Nov 9

6:35 am - 9:55 pmSEA-SAT

13h 20m2 stops

7:30 pm - 12:05 amSAT-SEA

6h 35m1 stop

$217Southwest

Find Deal

Tue, Nov 11 - Fri, Nov 14

7:05 am - 3:40 pmSEA-SAT

6h 35m1 stop

4:45 pm - 10:55 pmSAT-SEA

8h 10m2 stops

$220Southwest

Find Deal

Tue, Nov 4 - Tue, Nov 4

1:43 pm - 10:56 pmSEA-SAT

7h 13m1 stop

4:30 pm - 11:10 pmSAT-SEA

8h 40m1 stop

$236United Airlines

Find Deal

Wed, Oct 29 - Mon, Nov 3

Frontier flights from State of Washington to San Antonio

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

Frontier

Dec 4

PDX3:14 pmPortland

16h 04m

1 stop

SAT9:18 amSan Antonio

Dec 11

SAT7:14 pmSan Antonio

18h 43m

1 stop

PDX11:57 amPortland

$109

Find similar

Frontier

Nov 13

PDX12:52 pmPortland

28h 38m

1 stop

SAT7:30 pmSan Antonio

Nov 17

SAT8:25 pmSan Antonio

17h 31m

1 stop

PDX11:56 amPortland

$153

Find similar

Frontier

Oct 30

PDX12:52 pmPortland

28h 38m

1 stop

SAT7:30 pmSan Antonio

Nov 2

SAT8:26 pmSan Antonio

17h 30m

1 stop

PDX11:56 amPortland

$178

Find similar

United Airlines flights from State of Washington to San Antonio

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

United Airlines

Nov 6

SEA1:43 pmSeattle/Tacoma Intl

7h 13m

1 stop

SAT10:56 pmSan Antonio

Nov 10

SAT6:00 pmSan Antonio

6h 46m

1 stop

SEA10:46 pmSeattle/Tacoma Intl

$210

Find similar

United Airlines

Oct 29

SEA1:43 pmSeattle/Tacoma Intl

7h 13m

1 stop

SAT10:56 pmSan Antonio

Nov 3

SAT4:30 pmSan Antonio

8h 40m

1 stop

SEA11:10 pmSeattle/Tacoma Intl

$236

Find similar

United Airlines

Oct 29

SEA12:30 pmSeattle/Tacoma Intl

8h 26m

2 stops

SAT10:56 pmSan Antonio

Nov 3

SAT4:30 pmSan Antonio

8h 40m

1 stop

SEA11:10 pmSeattle/Tacoma Intl

$246

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 12/4

3:14 pm-9:18 am

1 stop16h 04m

San Antonio

Thu 12/11

7:14 pm-11:57 am

1 stop18h 43m

$109

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Thu 11/13

12:52 pm-7:30 pm

1 stop28h 38m

San Antonio

Mon 11/17

8:25 pm-11:56 am

1 stop17h 31m

$153

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Mon 11/10

7:29 pm-11:45 pm

2 stops26h 16m

San Antonio

Mon 11/17

8:25 pm-11:56 am

1 stop17h 31m

$184

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Thu 11/6

1:43 pm-10:56 pm

1 stop7h 13m

San Antonio

Mon 11/10

6:00 pm-10:46 pm

1 stop6h 46m

$210

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Sun 11/2

6:02 pm-12:05 am

Nonstop4h 03m

San Antonio

Sat 11/8

3:12 pm-11:57 am

1 stop22h 45m

$212

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Wed 12/3

12:31 am-9:34 am

1 stop7h 03m

San Antonio

Thu 12/11

5:52 pm-11:01 pm

1 stop7h 09m

$215

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Mon 11/3

2:55 pm-10:59 pm

1 stop6h 04m

San Antonio

Sun 11/9

8:21 pm-12:58 am

1 stop6h 37m

$216

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Tue 11/11

6:35 am-9:55 pm

2 stops13h 20m

San Antonio

Fri 11/14

7:30 pm-12:05 am

1 stop6h 35m

$217

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Tue 11/4

7:05 am-3:40 pm

1 stop6h 35m

San Antonio

Tue 11/4

4:45 pm-10:55 pm

2 stops8h 10m

$220

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Wed 10/29

1:43 pm-10:56 pm

1 stop7h 13m

San Antonio

Mon 11/3

4:30 pm-11:10 pm

1 stop8h 40m

$236

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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 $261.

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 $384. 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 $466.

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 $430. 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 $344 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 $254 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	$157
Fastest flight time	3h 58m
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 $157. The best round-trip flight deal from State of Washington to San Antonio found on momondo in the last 72 hours is $237.

The fastest flight from State of Washington to San Antonio takes 3h 58m

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

There is 1 airport near San Antonio: 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 October 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 (44.88% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (20.18%), Boeing 737 (16.27%), and Airbus A220-300 (3.61%).

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
Frontier	PriceFrom $129	Free Cancellation	Rating 5.8 3,136 reviews	Search Frontier flights
Delta	PriceFrom $139	Free Cancellation	Rating 7.9 7,972 reviews	Search Delta flights
Spirit Airlines	PriceFrom $163	Free Cancellation	Rating 6.3 8,094 reviews	Search Spirit Airlines flights
Alaska Airlines	PriceFrom $168	Free Cancellation	Rating 8.0 11,066 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $196	Free Cancellation	Rating 7.2 11,043 reviews	Search American Airlines flights
Hawaiian Airlines	PriceFrom $197	Free Cancellation	Rating 7.8 2,777 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $214	Free Cancellation	Rating 7.4 8,973 reviews	Search United Airlines flights
Southwest	PriceFrom $215	Free Cancellation	Rating 8.0 4,235 reviews	Search Southwest flights

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Schertz

Pleasanton

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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 $59

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 12/4. 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

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

United Airlines flights from State of Washington to San Antonio

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

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

See travel insights to San Antonio from

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

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 $261.

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, Delta, and American 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 6 per day as of October 2025. The most frequent departure time is 5:00PM, with 100% of daily flights leaving in the afternoon.

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 43 per week as of October 2025. The most frequent departure day is Mon, with 19% 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