AUS - BIO

$331 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 8/2. 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
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Everything you should know

Cheapest round-trip
$754
Typical prices: $955-$826
Lufthansa
Tue 9/1Tue 9/15
AUS - BIO • 2 stops
Cheapest one-way
$331
KLM
Sun 8/2
AUS - BIO • 2 stops
Top airlines
Cheapest • from $754 (round-trip)
Best reviews • 7.9 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 $849 (round-trip)
Shortest trip • 15h 27m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 40% price drop
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

Tue, Sep 1 - Tue, Sep 15
Lufthansa Logo
5:00 pm - 11:25 pm
AUS
-
BIO
23h 25m
2 stops
Lufthansa Logo
6:50 am - 2:00 pm
BIO
-
AUS
14h 10m
1 stop
$754Lufthansa
Tue, Sep 1 - Tue, Sep 15
Lufthansa Logo
5:00 pm - 5:55 pm
AUS
-
BIO
17h 55m
2 stops
Lufthansa Logo
6:50 am - 2:00 pm
BIO
-
AUS
14h 10m
1 stop
$756Lufthansa
Tue, Sep 1 - Tue, Sep 15
Lufthansa Logo
4:05 pm - 5:10 pm
AUS
-
BIO
18h 05m
1 stop
Lufthansa Logo
6:50 am - 2:00 pm
BIO
-
AUS
14h 10m
1 stop
$762Lufthansa
Tue, Sep 1 - Tue, Sep 15
Lufthansa Logo
5:00 pm - 11:25 pm
AUS
-
BIO
23h 25m
2 stops
Lufthansa Logo
6:50 am - 8:33 pm
BIO
-
AUS
20h 43m
2 stops
$763Lufthansa
Tue, Sep 1 - Tue, Sep 15
Delta Logo
7:20 am - 9:50 am
AUS
-
BIO
19h 30m
2 stops
Delta Logo
6:45 am - 10:05 pm
BIO
-
AUS
22h 20m
2 stops
$771Delta
Mon, Aug 10 - Tue, Aug 18
Lufthansa Logo
5:00 pm - 5:10 pm
AUS
-
BIO
41h 10m
2 stops
Lufthansa Logo
11:00 am - 9:06 pm
BIO
-
AUS
41h 06m
2 stops
$818Lufthansa
Mon, Aug 10 - Tue, Aug 18
Lufthansa Logo
5:00 pm - 10:10 am
AUS
-
BIO
34h 10m
2 stops
Lufthansa Logo
11:00 am - 9:06 pm
BIO
-
AUS
41h 06m
2 stops
$823Lufthansa
Thu, Aug 6 - Tue, Aug 18
United Airlines Logo
6:09 am - 4:00 pm
AUS
-
BIO
26h 51m
2 stops
United Airlines Logo
11:00 am - 6:58 pm
BIO
-
AUS
38h 58m
2 stops
$846United Airlines
Sun, Aug 2 - Fri, Aug 7
United Airlines Logo
5:20 pm - 11:25 pm
AUS
-
BIO
23h 05m
2 stops
United Airlines Logo
12:30 pm - 11:29 pm
BIO
-
AUS
17h 59m
1 stop
$860United Airlines
Sun, Aug 9 - Tue, Aug 18
Delta Logo
8:00 am - 9:50 am
AUS
-
BIO
18h 50m
2 stops
Delta Logo
7:10 am - 8:22 pm
BIO
-
AUS
20h 12m
2 stops
$866Delta
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 September.

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 $1,283 and $1,095 respectively.

Good to know

Low seasonJanuary
Cheapest flight$331
Best time to beat the crowds with an average 41% drop in price.
Most popular time to fly with an average 57% 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 $331 for a one-way ticket and $754 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 $1,047 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 $801 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 8459 reviews
7.8Entertainment
7.9Comfort
7.2Food
8.5Crew
8.1Boarding
Airline reviews

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

8.0 ExcellentMatthew, May 2026
OKC - ATL
Read more Delta reviews

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

It's a long flight and I would have liked better snacks between lunch and the arrival meal. It's fine to have fruit and nuts but I really don't like ramen because it's salty junk soup. I'd suggest sandwiches. They're not expensive nor are they hard to store for a long flight. The FA's had a couple of big services and they were super busy preparing, executing and then cleaning up. Then they disappeared.

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

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.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

We had excellent customer service despite the chaos at George Bush airport in Houston!

It isvvery small flight. No leg room . No space to put my personal item at feet.

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Overall we had a good experience during our flight from San Francisco to Houston.

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

Catastrophic experience the gate selected customers were picked up to.pay 70 eur for overweight 1-2 kg. While some others were let to board without chcking their carry on bags. Unecessaey drama by Lufthansa that brings nothing just hating them by customers.

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

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

Information on your arrival and departure airports