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$354+ Cheap flights from San Antonio (SAT) to Bilbao (BIO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BIO
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheap flight deals from San Antonio to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Bilbao (BIO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$447
(KLM)

One-way from

$354
(Kiwi.com)
Provider with most accurate pricing for San Antonio-Bilbao flight deals.
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Provider most trusted by Cheapflights users for San Antonio-Bilbao flights.
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From San Antonio to Bilbao
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One-way flight from San Antonio to Bilbao
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Find flight deals from San Antonio to Bilbao

Cheapest flights from San Antonio to Bilbao
Explore the most affordable flight options available from San Antonio to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

This United Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:10 pmSAT - BIO
2 stops20h 55mUnited Airlines
Sun 3/16:45 amBIO - SAT
2 stops23h 09mUnited Airlines
Deal found 1/6$479
This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/217:05 amSAT - BIO
2 stops22h 45mUnited Airlines
Sat 2/2812:50 pmBIO - SAT
2 stops29h 34mUnited Airlines
Deal found 1/7$489
This Delta deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1910:45 amSAT - BIO
2 stops22h 45mDelta
Mon 1/267:25 amBIO - SAT
2 stops21h 09mDelta
Deal found 1/8$526
This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:50 pmSAT - BIO
1 stop14h 55mUnited Airlines
Wed 8/196:50 amBIO - SAT
2 stops39h 48mUnited Airlines
Deal found 1/7$544
This United Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:50 pmSAT - BIO
1 stop14h 55mUnited Airlines
Sun 9/277:15 amBIO - SAT
3 stops36h 48mUnited Airlines
Deal found 1/6$548
This United Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:00 pmSAT - BIO
2 stops17h 55mUnited Airlines
Sat 10/36:50 amBIO - SAT
2 stops21h 17mUnited Airlines
Deal found 1/6$617
This United Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:00 pmSAT - BIO
2 stops17h 55mUnited Airlines
Sat 9/196:50 amBIO - SAT
2 stops19h 46mUnited Airlines
Deal found 1/6$631

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Bilbao that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 8, 2026.
Use the filters below to find and compare flights from San Antonio to Bilbao that are best for you.

Fly from

San Antonio

Fly to

Bilbao

Route

Depart

Return

Price

San AntonioBilbao

SAT - BIO

SATBIO

San Antonio

Wed 2/25

2:10 pm-6:05 pm

2 stops20h 55m

Bilbao

Sun 3/1

6:45 am-10:54 pm

2 stops23h 09m

$479

San AntonioBilbao

SAT - BIO

SATBIO

San Antonio

Sat 2/21

7:05 am-12:50 pm

2 stops22h 45m

Bilbao

Sat 2/28

12:50 pm-11:24 am

2 stops29h 34m

$489

San AntonioBilbao

SAT - BIO

SATBIO

San Antonio

Mon 1/19

10:45 am-4:30 pm

2 stops22h 45m

Bilbao

Mon 1/26

7:25 am-9:34 pm

2 stops21h 09m

$526

San AntonioBilbao

SAT - BIO

SATBIO

San Antonio

Tue 6/23

2:01 pm-1:20 pm

2 stops16h 19m

Bilbao

Thu 8/6

7:15 am-9:07 pm

2 stops20h 52m

$1,061

San AntonioBilbao

SAT - BIO

SATBIO

San Antonio

Sun 4/12

6:45 am-11:25 pm

2 stops33h 40m

$354

San AntonioBilbao

SAT - BIO

SATBIO

San Antonio

Mon 2/2

1:40 pm-5:20 pm

2 stops20h 40m

$393

San AntonioBilbao

SAT - BIO

SATBIO

San Antonio

Mon 3/9

1:00 pm-11:45 am

2 stops16h 45m

$394

San AntonioBilbao

SAT - BIO

SATBIO

San Antonio

Mon 3/9

3:08 pm-12:50 pm

2 stops15h 42m

$395

San AntonioBilbao

SAT - BIO

SATBIO

San Antonio

Mon 3/9

9:52 am-4:40 pm

3 stops24h 48m

$911

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Compare providers for flights from San Antonio to Bilbao

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Bilbao in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Antonio-Bilbao flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Bilbao flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Bilbao flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Bilbao flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Bilbao flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Antonio to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from San Antonio with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Bilbao

What is the cheapest month to book a flight from San Antonio to Bilbao?

Currently, January is the cheapest month in which you can book a flight from San Antonio to Bilbao (average of $489). Flying from San Antonio to Bilbao in June is currently the most expensive (average of $1,104). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Bilbao. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Antonio to Bilbao?

    Departing from San Antonio to Bilbao will take you 20h 55m. Airlines will cover a distance of 5105 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from San Antonio to Bilbao that include hotel bookings?

    Yes. In addition to deals on San Antonio to Bilbao flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Bilbao?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Bilbao.

  • Can I find deals for business class flights from San Antonio to Bilbao?

    Yes. Cheapflights offers flight deals from San Antonio to Bilbao by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Antonio to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from San Antonio to Bilbao (average of $489). Flying from San Antonio to Bilbao in June is currently the most expensive (average of $1,104). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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