AUS - BIO

$366 Find Cheap Flights from Austin to Bilbao

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Austin to Bilbao departing on 6/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Bilbao

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Austin to Bilbao, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Austin to Bilbao, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$480
Overall average: $861
United Airlines
Mon 4/13Wed 4/22
AUS - BIO • 2 stops
Cheapest one-way
$366
Lufthansa
Sun 6/7
AUS - BIO • 2 stops
Top airlines
United Airlines
Cheapest • from $480 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
January
Cheapest • 40% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Bilbao!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Austin to Bilbao (AUS-BIO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Austin to Bilbao that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Austin to Bilbao

Mon, Apr 13 - Wed, Apr 22
United Airlines Logo
2:10 pm - 11:25 pm
AUS
-
BIO
26h 15m
2 stops
United Airlines Logo
6:50 am - 2:00 pm
BIO
-
AUS
14h 10m
1 stop
$480United Airlines
Mon, Apr 13 - Wed, Apr 22
United Airlines Logo
7:15 am - 11:25 pm
AUS
-
BIO
33h 10m
2 stops
United Airlines Logo
6:50 am - 12:00 pm
BIO
-
AUS
36h 10m
2 stops
$488United Airlines
Thu, Feb 26 - Sun, Mar 1
United Airlines Logo
6:30 am - 9:55 pm
AUS
-
BIO
32h 25m
2 stops
United Airlines Logo
6:45 am - 1:13 pm
BIO
-
AUS
37h 28m
2 stops
$490United Airlines
Tue, Mar 10 - Tue, Mar 24
United Airlines Logo
7:30 am - 12:50 pm
AUS
-
BIO
23h 20m
2 stops
United Airlines Logo
6:45 am - 8:34 am
BIO
-
AUS
31h 49m
2 stops
$491United Airlines
Tue, Mar 10 - Tue, Mar 24
United Airlines Logo
5:10 pm - 12:05 pm
AUS
-
BIO
12h 55m
1 stop
United Airlines Logo
6:45 am - 11:18 am
BIO
-
AUS
34h 33m
2 stops
$498United Airlines
Thu, Mar 5 - Sun, Mar 15
United Airlines Logo
9:00 am - 4:40 pm
AUS
-
BIO
24h 40m
2 stops
United Airlines Logo
12:45 pm - 8:44 pm
BIO
-
AUS
37h 59m
2 stops
$508United Airlines
Tue, Mar 10 - Tue, Mar 24
Lufthansa Logo
5:10 pm - 12:05 pm
AUS
-
BIO
12h 55m
1 stop
Lufthansa Logo
6:45 am - 8:44 pm
BIO
-
AUS
19h 59m
2 stops
$519Lufthansa
Wed, Apr 1 - Wed, Apr 15
Lufthansa Logo
4:57 pm - 11:25 pm
AUS
-
BIO
23h 28m
2 stops
Lufthansa Logo
6:50 am - 2:00 pm
BIO
-
AUS
14h 10m
1 stop
$534Lufthansa
Wed, Apr 1 - Wed, Apr 15
Lufthansa Logo
4:05 pm - 5:15 pm
AUS
-
BIO
18h 10m
1 stop
Lufthansa Logo
6:50 am - 2:00 pm
BIO
-
AUS
14h 10m
1 stop
$542Lufthansa
Wed, Apr 1 - Wed, Apr 15
Lufthansa Logo
4:57 pm - 11:25 pm
AUS
-
BIO
23h 28m
2 stops
Lufthansa Logo
6:50 am - 8:43 pm
BIO
-
AUS
20h 53m
2 stops
$543Lufthansa
Booking Insights

KAYAK's insights & trends for Austin to Bilbao flights

Get data-powered insights and trends into flights from Austin to Bilbao to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Austin to Bilbao?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Austin to Bilbao, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Austin to Bilbao is January, where tickets cost $489 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,381 and $1,057 respectively.

Good to know

Low seasonJanuary
Cheapest flight$366
Best time to beat the crowds with an average 41% drop in price.
Most popular time to fly with an average 68% increase in price.
Flight from Austin to Bilbao

When to book flights from Austin to Bilbao

Are your dates flexible? Find out the best times to travel from Austin to Bilbao based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Austin to Bilbao

  • What is the cheapest flight from Austin to Bilbao?

    In the last 3 days, the lowest price for a flight from Austin to Bilbao was $480 for a round-trip ticket.

  • Do I need a passport to fly between Austin and Bilbao?

    A passport is required to fly from Austin to Bilbao.

  • Which aircraft models fly most regularly from Austin to Bilbao?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Austin to Bilbao?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Austin and Bilbao, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Austin to Bilbao, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Austin to Bilbao are Delta and United Airlines. With an average price for the route of $887 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $943 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Austin to Bilbao?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Austin to Bilbao.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Austin to Bilbao?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from Austin is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Austin to Bilbao?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bilbao with an airline and back to Austin with another airline. Booking your flights between Austin and BIO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Austin to Bilbao?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bilbao from Austin up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Austin to Bilbao

 
See real verified KAYAK customer reviews for airlines flying from Austin to Bilbao. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Austin to Bilbao? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8128 reviews
8.5Crew
7.9Comfort
7.8Entertainment
7.2Food
8.1Boarding
Airline reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

2.0 MediocreTodd, Jan 2026
IAH - ATL
Read more Delta reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Delayed, toilets did not flush, pilot parked to far away from Gate

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

Everything you need to know for your flight from Austin to Bilbao

Information on your arrival and departure airports