AUS - BIO

$398 Find Cheap Flights from Austin to Bilbao - Compare and Save

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 10/1. 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

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Everything you should know

Cheapest round-trip
$730
Overall average: $489
Delta
Mon 1/18Thu 1/21
AUS - BIO • 1 stop
Cheapest one-way
$398
Multiple Airlines
Thu 10/1
AUS - BIO • 2 stops
Top airlines
Cheapest • from $730 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Austin and Bilbao. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $820 (round-trip)
Shortest trip • 15h 25m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 42% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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, Jan 18 - Thu, Jan 21
Delta Logo
6:01 pm - 4:30 pm
AUS
-
BIO
15h 29m
1 stop
Delta Logo
6:50 am - 4:05 pm
BIO
-
AUS
16h 15m
1 stop
$730Delta
Sun, Jan 17 - Thu, Jan 21
Delta Logo
11:20 am - 5:25 pm
AUS
-
BIO
23h 05m
2 stops
Delta Logo
6:50 am - 4:05 pm
BIO
-
AUS
16h 15m
1 stop
$730Delta
Wed, Jan 13 - Thu, Jan 21
Delta Logo
10:52 am - 11:30 am
AUS
-
BIO
17h 38m
2 stops
Delta Logo
6:50 am - 4:05 pm
BIO
-
AUS
16h 15m
1 stop
$730Delta
Tue, Jan 12 - Tue, Jan 19
United Airlines Logo
8:30 am - 10:50 am
AUS
-
BIO
19h 20m
2 stops
United Airlines Logo
6:45 am - 2:05 pm
BIO
-
AUS
14h 20m
1 stop
$737United Airlines
Wed, Jan 13 - Tue, Jan 19
United Airlines Logo
2:00 pm - 6:05 pm
AUS
-
BIO
21h 05m
2 stops
United Airlines Logo
6:45 am - 2:05 pm
BIO
-
AUS
14h 20m
1 stop
$737United Airlines
Tue, Jan 12 - Tue, Jan 19
United Airlines Logo
3:55 pm - 5:00 pm
AUS
-
BIO
18h 05m
1 stop
United Airlines Logo
6:45 am - 2:05 pm
BIO
-
AUS
14h 20m
1 stop
$745United Airlines
Sat, Jan 16 - Thu, Jan 21
KLM Logo
11:20 am - 12:00 pm
AUS
-
BIO
17h 40m
2 stops
KLM Logo
8:30 am - 8:59 pm
BIO
-
AUS
19h 29m
2 stops
$755KLM
Fri, Jan 15 - Thu, Jan 21
KLM Logo
12:20 pm - 4:00 pm
AUS
-
BIO
20h 40m
2 stops
KLM Logo
8:30 am - 8:59 pm
BIO
-
AUS
19h 29m
2 stops
$755KLM
Tue, Jan 12 - Fri, Jan 22
Lufthansa Logo
3:55 pm - 5:00 pm
AUS
-
BIO
18h 05m
1 stop
Lufthansa Logo
6:45 am - 9:14 pm
BIO
-
AUS
21h 29m
2 stops
$760Lufthansa
Sun, Jan 17 - Fri, Jan 22
Lufthansa Logo
3:55 pm - 10:50 pm
AUS
-
BIO
23h 55m
1 stop
Lufthansa Logo
6:45 am - 9:14 pm
BIO
-
AUS
21h 29m
2 stops
$760Lufthansa
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.

How much is a round-trip flight from Austin to Bilbao?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Austin to Bilbao departing in January.

Flight prices are below average for this route right now.

Flights to Bilbao from Austin usually cost between $781 and $1,049 in January.
The lowest price found in the past 5 days was $730 on Delta (Jan 12-Jan 21).

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 $1,254 and $1,138 respectively.

Good to know

Low season

January

Cheapest flight

$398
Best time to beat the crowds with an average 43% drop in price.
Most popular time to fly and prices are also 12% lower on average.
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 5 days, the lowest price for a flight from Austin to Bilbao was $398 for a one-way ticket and $730 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?

    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 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $781 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.
7.8
DeltaOverall score based on 8489 reviews
8.1Boarding
8.5Crew
7.2Food
7.8Entertainment
7.8Comfort
Airline reviews

delta wifi wouldn’t work boarding was not in sequence flight crew spent most of their time on the phone with the lights off pretending no one wanted or needed anything

6.0 GoodTapan, Jul 2026
AUS - ATL
Read more Delta reviews

delta wifi wouldn’t work boarding was not in sequence flight crew spent most of their time on the phone with the lights off pretending no one wanted or needed anything

flight was delayed 4+ hours. there was really no understanding of why? weather? the last hour of delay was post boarding. pilot seat was broken. was that the real reason? nonetheless, long day of inconveniences.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

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.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

Delay getting into gate in ATL caused delay in bags when getting to BWI, disrupting evening plans with family.

6 hour delay including one after we were boarded. Horrible experience.

Flight was delayed. Had to get rebooked. Diamond medallion but stuck in a crappy seat. Rebooked flight then got delayed again. Then when we finally boarded, we waited another hour for a new crew. Then landed in JFK and sat for another 40 minutes waiting for a crew to come to the gate to be able to deplane. Hot mess all around, which unfortunately is becoming the norm for Delta

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

The wheelchair service is useless. They live you in different spots, not tell you anything just wait. I waited 30 minutes in Frankfurt when decided to walk the 25 minutes distance. In Budapest nobody came.

Food choices were very limited. Taste of the dishes was average.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

No in flight entertainment, gate employees were very quick and impatient, plane was uncomfortable

The lady who gave me my boarding pass for check in was extremely rude.

Small plane (and thus a bumpy ride), small seats (and a large man next to me), absolutely terrible wifi, and no food options to speak of.

Plane was older and terribly uncomfortable but the leg room was good!

Flight was well orchestrated, made up time despite circling a bit all good on United. Travelers can just be so into themselves that common courtesy has gone out window for some, but that’s not on United.

I don't understand why they can't have charging ports on seats in 2023. They only offer it as a 'premium seat' service. It's ridiculous

It started well but flight was cancelled and they created a nightmare rebooking. It is two days later and we still haven’t reached our destination. I am in Amsterdam waiting on transfer desk to open (later than other airlines) to hopefully get a boarding pass. Once that problem is solved we will just pray this flight isn’t cancelled too.

They messed up my seat so I didn’t get the one I paid for

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

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

It was good although we could not land in Munich due to weather and we had to go to Stuttgart. Missed our second flight. They did get us on another flight but the seats where not the ones I paid for in the flight that we missed.

In this flight was no good it was delay, change of door

The Lufthansa flight was delayed, and I missed the connecting flight. Lufthansa customer service have not been helpful in rebooking the subsequent flight with Air India (another airline that is part of the Star Alliance). Lufthansa told me it's not their responsibility, and Air India says the PNR is part of Lufthansa, so they are not responsible for rebooking. Lufthansa customer service asked me to contact the counter at Delhi airport, but no one was available there. I am caught between these two airlines, and ultimately, Air India decided to reschedule my flight after 18 hours. I am stranded at Delhi airport. I can't go out because if I do, I can't come back in, and I can't get past security to get food. My 3-year-old and our family stranded here for 12 hours without food and water.

Dinner was excellent - beef stew, the eggs for breakfast were only ok. It was soooo nice that there were so many options for movies and games.

Bordón could be bettet if the company say before boarding the order of the different groups.

Boarding was so bad in Frankfurt to mumbai total chaos no directions no boarding order

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

Information on your arrival and departure airports