$447 Cheap Flights from Austin (AUS) to Bilbao (BIO)

View $447 flight on Mon, Dec 1, 2025Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to Bilbao Airport (BIO)

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Cheap Flights from Austin to Bilbao (AUS-BIO)

Prices were available within the past 7 days and start at $447 for one-way flights and $520 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, Dec 1 - Tue, Dec 9
AUS
Austin
BIO
Bilbao
$520 Roundtrip, found 5 hours ago
$520
Roundtrip
found 5 hours ago
Select Air Canada flight, departing Mon, Dec 1 from Austin to Bilbao, returning Tue, Dec 9, priced at $520 found 5 hours ago
Lufthansa
Wed, Nov 5 - Thu, Nov 13
AUS
Austin
BIO
Bilbao
$523 Roundtrip, found 6 days ago
$523
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Nov 5 from Austin to Bilbao, returning Thu, Nov 13, priced at $523 found 6 days ago
Delta
Wed, Nov 12 - Wed, Nov 19
AUS
Austin
BIO
Bilbao
$524 Roundtrip, found 2 days ago
$524
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Nov 12 from Austin to Bilbao, returning Wed, Nov 19, priced at $524 found 2 days ago
United
Tue, Nov 11 - Sun, Nov 16
AUS
Austin
BIO
Bilbao
$525 Roundtrip, found 6 days ago
$525
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 11 from Austin to Bilbao, returning Sun, Nov 16, priced at $525 found 6 days ago
Delta
Sat, Nov 8 - Wed, Nov 19
AUS
Austin
BIO
Bilbao
$526 Roundtrip, found 2 days ago
$526
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Nov 8 from Austin to Bilbao, returning Wed, Nov 19, priced at $526 found 2 days ago
Air Canada
Mon, Dec 1 - Tue, Dec 9
AUS
Austin
BIO
Bilbao
$526 Roundtrip, found 5 hours ago
$526
Roundtrip
found 5 hours ago
Select Air Canada flight, departing Mon, Dec 1 from Austin to Bilbao, returning Tue, Dec 9, priced at $526 found 5 hours ago
Lufthansa
Wed, Nov 26 - Tue, Dec 2
AUS
Austin
BIO
Bilbao
$529 Roundtrip, found 6 hours ago
$529
Roundtrip
found 6 hours ago
Select Lufthansa flight, departing Wed, Nov 26 from Austin to Bilbao, returning Tue, Dec 2, priced at $529 found 6 hours ago
Lufthansa
Wed, Nov 5 - Thu, Nov 13
AUS
Austin
BIO
Bilbao
$529 Roundtrip, found 6 days ago
$529
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Nov 5 from Austin to Bilbao, returning Thu, Nov 13, priced at $529 found 6 days ago
Delta
Tue, Nov 11 - Wed, Nov 19
AUS
Austin
BIO
Bilbao
$531 Roundtrip, found 2 days ago
$531
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Nov 11 from Austin to Bilbao, returning Wed, Nov 19, priced at $531 found 2 days ago
Iberia
Mon, Dec 1 - Tue, Dec 9
AUS
Austin
BIO
Bilbao
$554 Roundtrip, found 5 hours ago
$554
Roundtrip
found 5 hours ago
Select Iberia flight, departing Mon, Dec 1 from Austin to Bilbao, returning Tue, Dec 9, priced at $554 found 5 hours ago

Alternative airports near Bilbao

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Bilbao Airport BIO. Cheapest and Closest option available. Average driving time to city center is 13 minutes. Flights from $870
BIO
Bilbao Airport
CheapestClosest
Average driving time to city center13 min
Flights from $870

Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to Bilbao Airport (BIO) cost?
Lock in a cheap one-way flight from $447 or cheap return flight from $520 from Austin-Bergstrom Intl. Airport (AUS) to Bilbao Airport (BIO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Austin-Bergstrom Intl. Airport (AUS) to Bilbao Airport (BIO)?
December is the least expensive month to fly from AUS to BIO. Traveling during an off-peak travel window is often the key to scoring lower fares.
What is the cheapest airline that flies from Austin-Bergstrom Intl. Airport (AUS) to Bilbao Airport (BIO)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from AUS to BIO. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to Bilbao Airport (BIO)?
There aren't any daily direct flights departing from Austin-Bergstrom Intl. Airport (AUS) to Bilbao Airport (BIO). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from AUS to BIO?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Austin-Bergstrom Intl. Airport (AUS) to Bilbao Airport (BIO)?
Book a flight from Austin-Bergstrom Intl. Airport (AUS) to Bilbao Airport (BIO) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Austin-Bergstrom Intl. Airport (AUS) to Bilbao Airport (BIO) last-minute?
Holding off until right before your break to book a flight from AUS to BIO often results in higher prices. While you may come across some last-minute offers, they're not always guaranteed. Be flexible with your travel plans for a better chance of snagging a bargain.
Is it cheaper to book an AUS to BIO flight and hotel package?
You'll generally save money by booking an AUS to BIO flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've selected your preferred accommodations and flights, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Austin-Bergstrom Intl. Airport (AUS) to Bilbao Airport (BIO)?
In most instances, you can cancel or reschedule your AUS to BIO flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you'd like more information, go to our Customer Service portal.

Travel information

Origin airport
Austin-Bergstrom Intl.
Destination airport
Bilbao
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Brussels Airlines, Delta, Finnair, Iberia, KLM, Lufthansa, Scandinavian Airlines, Turkish Airlines, United
Roundtrip price
$520
Distance
5041 mi

Book with confidence

Austin to Bilbao Flights

The cheapest times to fly from Austin to Bilbao

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Austin to Bilbao are during the month of December. You can find some of the cheapest flights from Austin to Bilbao with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Austin to Bilbao

Sunday is one of the best days to book for cheap flights from Austin to Bilbao: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Austin to Bilbao

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Austin to Bilbao in 2025. You can also book with separate airlines for your outbound and return journeys, from $447 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Austin to Bilbao flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Austin to Bilbao airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Austin to Bilbao Flights

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*Available to One Key members.