AUS - BIO

$532 Find Cheap Flights from Austin to Bilbao

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Austin to Bilbao departing on 9/22. 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

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
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Flights 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, Sep 22 - Wed, Oct 1
United Airlines Logo
4:12 pm - 10:45 amAUS-BIO
35h 33m1 stop
United Airlines Logo
6:45 am - 2:20 pmBIO-AUS
14h 35m1 stop
$532United Airlines
Find Deal
Mon, Sep 22 - Wed, Oct 1
Lufthansa Logo
5:25 pm - 6:45 pmAUS-BIO
18h 20m2 stops
Lufthansa Logo
6:45 am - 2:20 pmBIO-AUS
14h 35m1 stop
$568Lufthansa
Find Deal
Mon, Sep 22 - Wed, Oct 1
Lufthansa Logo
10:00 am - 1:20 pmAUS-BIO
20h 20m2 stops
Lufthansa Logo
6:35 pm - 2:20 pmBIO-AUS
26h 45m2 stops
$594Lufthansa
Find Deal
Tue, Oct 14 - Mon, Nov 3
 Logo
10:00 am - 6:20 pmAUS-BIO
25h 20m2 stops
 Logo
5:30 pm - 2:15 pmBIO-AUS
27h 45m1 stop
Mon, Sep 22 - Wed, Oct 1
 Logo
11:20 am - 2:00 pmAUS-BIO
19h 40m2 stops
 Logo
9:00 pm - 7:55 pmBIO-AUS
29h 55m3 stops
Tue, Oct 14 - Mon, Nov 3
 Logo
10:00 am - 4:05 pmAUS-BIO
23h 05m2 stops
 Logo
5:30 pm - 5:21 pmBIO-AUS
30h 51m2 stops
Sun, Sep 14 - Sun, Sep 21
United Airlines Logo
3:00 pm - 5:50 pmAUS-BIO
19h 50m2 stops
United Airlines Logo
12:30 pm - 7:59 pmBIO-AUS
14h 29m1 stop
$725United Airlines
Find Deal
Sun, Sep 14 - Sun, Sep 21
United Airlines Logo
3:00 pm - 5:50 pmAUS-BIO
19h 50m2 stops
United Airlines Logo
12:30 pm - 10:53 pmBIO-AUS
17h 23m2 stops
$730United Airlines
Find Deal
Tue, Oct 14 - Mon, Nov 3
 Logo
1:09 pm - 10:40 pmAUS-BIO
26h 31m3 stops
 Logo
7:10 am - 12:14 pmBIO-AUS
36h 04m3 stops
Tue, Oct 14 - Mon, Nov 3
 Logo
10:00 am - 2:30 pmAUS-BIO
21h 30m2 stops
 Logo
8:55 am - 12:14 pmBIO-AUS
34h 19m3 stops
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’s the cheapest day of the week to fly from Austin to Bilbao?

The average price of all round-trip flights from Austin to Bilbao clicked on KAYAK for each day over the last 12 months.

For Austin to Bilbao, Friday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Bilbao back to Austin, the best deals are generally found on Tuesday, with Saturday being the most expensive.

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 $674 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,635 and $1,392 respectively.

Good to know

Low seasonFebruary
Cheapest flight$532
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 10% 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 $1,192 for a one-way ticket and $532 for a round-trip.

  • 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?

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

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

    The two airlines most popular with KAYAK users for flights from Austin to Bilbao are United Airlines and Lufthansa. With an average price for the route of $1,057 and an overall rating of 7.4, United Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $929 and an overall rating of 6.8.

  • 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.
8.0
DeltaOverall score based on 7980 reviews
7.9Comfort
8.5Crew
8.2Boarding
7.3Food
7.9Entertainment
Airline reviews

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

2.0 MediocreGim, Jul 2025BGM - DTW
Read more Delta reviews

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Only issue was with seating. The economy fare we purchased did say there was no guarantee the three people in our party would be seated together, and we were not. At the gate, the agent told us more specifically, the fare we purchased meant we would be seated in middle seats only. This should just be made more obvious.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

A little bit more leg room in premium economy. I am 6’4”.

Overall it was good. I missed my connection but I was put on another flight.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Gate agent did not hold flight for connection, provided no assistance to get new flight

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

My suitcase was completed destroyed. The top part is broken and unusable now.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

Our flight was delayed for over an hour due to weather, and it had already been a long travel day. However, the crew was calm and compassionate, listening to every complaint with genuine concern. They got us home safely without incident, in spite of all of the obstacles. I’m grateful.

Hate their old flights, boatding, food and services. Very poor quality

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

The food could be better, more snacks. And have some plugs to chargue the phone.

The pasta in the evening meal was tasteless. Otherwise, the flight was okay.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Seating was average for a first class seat. It very modern. I expected better.

Flight was a little late. The crew was courteous, food ok

Bad! Disaster!! The LH419 was cancelled after 4 hrs on board with no AC and no toilets

Poor food on flight between Toronto and Stockholm Airport Toronto too crowded

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

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