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Cheap flights from Austin to San Sebastian from $894

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to San Sebastian departing on 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Austin to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:28 pm - 5:25 pmAUS  Austin Bergstrom-EAS San Sebastián
18h 57m2 stops Chicago O'Hare Intl Madrid Barajas
American Airlines Logo
9:20 am - 9:55 pmEAS  San Sebastián-AUS Austin Bergstrom
19h 35m2 stops Madrid Barajas New York John F Kennedy Intl
$894American Airlines
Wed, Sep 23 - Wed, Sep 30
Iberia Logo
8:11 am - 8:50 pmAUS  Austin Bergstrom-EAS San Sebastián
29h 39m2 stops Chicago O'Hare Intl Madrid Barajas
Iberia Logo
6:10 pm - 4:45 pmEAS  San Sebastián-AUS Austin Bergstrom
53h 35m2 stops Barcelona-El Prat London Heathrow
$1,032Iberia
Fri, Nov 20 - Sun, Nov 29
Finnair Logo
3:27 pm - 8:40 amAUS  Austin Bergstrom-EAS San Sebastián
34h 13m2 stops Chicago O'Hare Intl Madrid Barajas
Finnair Logo
9:20 am - 11:59 pmEAS  San Sebastián-AUS Austin Bergstrom
21h 39m2 stops Madrid Barajas Chicago O'Hare Intl
$1,562Finnair
Tue, Sep 1 - Tue, Sep 15
Finnair Logo
3:27 pm - 8:40 amAUS  Austin Bergstrom-EAS San Sebastián
34h 13m2 stops Chicago O'Hare Intl Madrid Barajas
Finnair Logo
9:20 am - 11:59 pmEAS  San Sebastián-AUS Austin Bergstrom
21h 39m2 stops Madrid Barajas Chicago O'Hare Intl
$1,688Finnair
Tue, Sep 1 - Tue, Sep 15

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Finnair flights from Austin to San Sebastian

Our best Finnair deals on Austin to San Sebastian flight tickets
Finnair
Sep 1
AUS3:27 pmAustin Bergstrom
34h 13m
2 stops
EAS8:40 amSan Sebastián
Sep 15
EAS9:20 amSan Sebastián
21h 39m
2 stops
AUS11:59 pmAustin Bergstrom
$1,562
Finnair
Sep 1
AUS3:27 pmAustin Bergstrom
34h 13m
2 stops
EAS8:40 amSan Sebastián
Sep 15
EAS9:20 amSan Sebastián
21h 39m
2 stops
AUS11:59 pmAustin Bergstrom
$1,688

momondo Fare Finder

 
Customize your flight search to find flights from Austin to San Sebastian that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 12, 2026.
Use the filters below to find and compare flights from Austin to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

AustinSan Sebastian

AUS Austin Bergstrom - EAS San Sebastián

AUSEAS

Austin Bergstrom

Wed 9/23

3:28 pm-5:25 pm

2 stops18h 57m

San Sebastián

Wed 9/30

9:20 am-9:55 pm

2 stops19h 35m

$894

AustinSan Sebastian

AUS Austin Bergstrom - EAS San Sebastián

AUSEAS

Austin Bergstrom

Fri 11/20

8:11 am-8:50 pm

2 stops29h 39m

San Sebastián

Sun 11/29

6:10 pm-4:45 pm

2 stops53h 35m

$1,032

AustinSan Sebastian

AUS Austin Bergstrom - EAS San Sebastián

AUSEAS

Austin Bergstrom

Tue 9/1

3:27 pm-8:40 am

2 stops34h 13m

San Sebastián

Tue 9/15

9:20 am-11:59 pm

2 stops21h 39m

$1,562

AustinSan Sebastian

AUS Austin Bergstrom - EAS San Sebastián

AUSEAS

Austin Bergstrom

Tue 9/1

3:27 pm-8:40 am

2 stops34h 13m

San Sebastián

Tue 9/15

9:20 am-11:59 pm

2 stops21h 39m

$1,688

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to San Sebastian from

How to get the cheapest flight ticket from Austin to San Sebastian

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to San Sebastian?

Lufthansa, United Airlines and Delta are the top three most popular airlines that fly to San Sebastian from Austin according to our data. Lufthansa is the first choice among our users, with 52% of people opting to fly with this airline when traveling to San Sebastian. Keep in mind that there are 3 different airlines that fly to San Sebastian on a routine basis, so you have a few additional options to choose from.

When to book flights from Austin to San Sebastian

Are you open to changing your travel dates? Check out the ideal times to fly from Austin to San Sebastian according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Austin to San Sebastian (AUS to EAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to San Sebastian

Fastest flight time

16h 12m

Direct flights

None
The fastest flight from Austin to San Sebastian takes 16h 12m
There are no direct flights from Austin to San Sebastian. There are no popular flight routes from Austin to San Sebastian.
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Frequently asked questions about flying from Austin to San Sebastian

  • How far is Austin Bergstrom to San Sebastián by plane?

    Austin Bergstrom and San Sebastián are 5080.2 mi apart from one another. In terms of flight time, this usually takes a little over 16h 12m.

  • When did momondo last update prices for flights from Austin Bergstrom Airport to San Sebastián Airport?

    Prices for flights from Austin Bergstrom Airport to San Sebastián Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Austin Bergstrom Airport to San Sebastián Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Austin Bergstrom Airport to San Sebastián Airport.

  • What documentation or ID do you need to fly to San Sebastián Airport?

    The travel and health documents required for your trip to San Sebastián Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Sebastián Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near San Sebastian?

Book flights to San Sebastian if you plan to visit one of these locations
Irun

Why use momondo?

Why should I use momondo to find a flight deal from Austin to San Sebastian?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Austin to San Sebastian. momondo saves you time and could save you money on your trip.

Can I find flights from Austin to San Sebastian with flexible booking policies on momondo?

Flights from Austin to San Sebastian with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Austin to San Sebastian?

momondo helps you find the best flight between Austin and San Sebastian by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Austin to San Sebastian right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Sebastian from Austin. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to Spain

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