HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bilbao

$615+ Cheap flights from San Antonio (SAT) to Bilbao (BIO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BIO
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Antonio to Bilbao with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$615
(Delta)
Provider with most accurate pricing for San Antonio-Bilbao flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Bilbao flights.
Search Deals
From San Antonio to Bilbao
Search Deals

Find flight deals from San Antonio to Bilbao

Best flights from San Antonio to Bilbao
Discover carefully curated flight deals from San Antonio to Bilbao that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 6, 2025.

This Delta deal was found by Cheapflights users on 11/3. 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.
Fri 3/2712:30 pmSAT - BIO
2 stops22h 00mDelta
Tue 3/3112:00 pmBIO - SAT
2 stops36h 22mDelta
Deal found 11/3$615
This United Airlines deal was found by Cheapflights users on 11/4. 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 3/272:15 pmSAT - BIO
2 stops27h 05mUnited Airlines
Tue 3/316:45 amBIO - SAT
2 stops23h 23mUnited Airlines
Deal found 11/4$723

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 November 6, 2025.
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

Fri 3/27

12:30 pm-4:30 pm

2 stops22h 00m

Bilbao

Tue 3/31

12:00 pm-5:22 pm

2 stops36h 22m

$615

San AntonioBilbao

SAT - BIO

SATBIO

San Antonio

Fri 3/27

2:15 pm-11:20 pm

2 stops27h 05m

Bilbao

Tue 3/31

6:45 am-11:08 pm

2 stops23h 23m

$723

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

  • 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 time of day to fly from SAT to BIO?

Find hourly flight availability from San Antonio to Bilbao. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

It’s optimal to fly from San Antonio to Bilbao at noon. By choosing this option you can save up to 42% on the cost of your flight, compared to a flight in the evening.

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 22h. 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.