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Cheap flights from Detroit to San Sebastian from $390

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to San Sebastian departing on 5/5. 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

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Find the cheapest flights from Detroit to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
3:40 pm - 1:00 pm
DTW
-
EAS
39h 20m
2 stops
British Airways Logo
9:30 pm - 11:53 pm
EAS
-
DTW
32h 23m
2 stops
$843British Airways
Sun, Sep 20 - Mon, Sep 28
Iberia Logo
5:32 pm - 8:40 am
DTW
-
EAS
33h 08m
2 stops
Iberia Logo
9:30 pm - 11:25 pm
EAS
-
DTW
31h 55m
2 stops
$952Iberia
Thu, May 7 - Thu, May 14
American Airlines Logo
7:00 am - 8:40 am
DTW
-
EAS
19h 40m
2 stops
American Airlines Logo
9:20 am - 9:06 pm
EAS
-
DTW
17h 46m
2 stops
$1,143American Airlines
Sun, Sep 20 - Mon, Sep 28
American Airlines Logo
11:12 am - 1:00 pm
DTW
-
EAS
19h 48m
2 stops
American Airlines Logo
9:20 am - 11:25 pm
EAS
-
DTW
20h 05m
2 stops
$1,494American Airlines
Tue, Apr 7 - Sat, Apr 11

American Airlines flights from Detroit to San Sebastian

Our best American Airlines deals on Detroit to San Sebastian flight tickets
American Airlines
Sep 20
DTW7:00 amDetroit Metropolitan Wayne County
19h 40m
2 stops
EAS8:40 amSan Sebastián
Sep 28
EAS9:20 amSan Sebastián
17h 46m
2 stops
DTW9:06 pmDetroit Metropolitan Wayne County
$1,143
American Airlines
Apr 7
DTW11:12 amDetroit Metropolitan Wayne County
19h 48m
2 stops
EAS1:00 pmSan Sebastián
Apr 11
EAS9:20 amSan Sebastián
20h 05m
2 stops
DTW11:25 pmDetroit Metropolitan Wayne County
$1,494

momondo Fare Finder

 
Customize your flight search to find flights from Detroit 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 March 25, 2026.
Use the filters below to find and compare flights from Detroit to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitSan Sebastian

DTW - EAS

DTWEAS

Detroit Metropolitan Wayne County

Sun 9/20

3:40 pm-1:00 pm

2 stops39h 20m

San Sebastián

Mon 9/28

9:30 pm-11:53 pm

2 stops32h 23m

$843

DetroitSan Sebastian

DTW - EAS

DTWEAS

Detroit Metropolitan Wayne County

Thu 5/7

5:32 pm-8:40 am

2 stops33h 08m

San Sebastián

Thu 5/14

9:30 pm-11:25 pm

2 stops31h 55m

$952
Quickest round-trip

DetroitSan Sebastian

DTW - EAS

DTWEAS

Detroit Metropolitan Wayne County

Sun 9/20

7:00 am-8:40 am

2 stops19h 40m

San Sebastián

Mon 9/28

9:20 am-9:06 pm

2 stops17h 46m

$1,143

DetroitSan Sebastian

DTW - EAS

DTWEAS

Detroit Metropolitan Wayne County

Tue 4/7

11:12 am-1:00 pm

2 stops19h 48m

San Sebastián

Sat 4/11

9:20 am-11:25 pm

2 stops20h 05m

$1,494
Cheapest one-way

DetroitSan Sebastian

DTW - EAS

DTWEAS

Detroit Metropolitan Wayne County

Tue 5/5

9:16 am-10:35 am

3 stops43h 19m

$390

DetroitSan Sebastian

DTW - EAS

DTWEAS

Detroit Metropolitan Wayne County

Wed 4/15

9:16 am-8:20 am

3 stops41h 04m

$497

DetroitSan Sebastian

DTW - EAS

DTWEAS

Detroit Metropolitan Wayne County

Tue 5/5

1:58 pm-8:40 am

2 stops36h 42m

$573

DetroitSan Sebastian

DTW - EAS

DTWEAS

Detroit Metropolitan Wayne County

Wed 4/15

8:50 pm-8:20 am

2 stops29h 30m

$608
Quickest one-way

DetroitSan Sebastian

DTW - EAS

DTWEAS

Detroit Metropolitan Wayne County

Tue 5/5

7:47 am-8:40 am

2 stops18h 53m

$677

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Detroit to San Sebastian

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

Cheap Detroit to San Sebastian (DTT to EAS) flight deals and tips

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

Fastest flight time

27h 58m

Direct flights

None
The fastest flight from Detroit to San Sebastian takes 27h 58m
There are no direct flights from Detroit to San Sebastian. There are no popular flight routes from Detroit to San Sebastian.
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  • How far is Detroit to San Sebastián by plane?

    San Sebastián is 3931.8 mi away from Detroit. 27h 58m is a normal flight duration for this route.

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

    Prices for flights from Detroit to San Sebastián Airport were last updated today.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Detroit to San Sebastián Airport.

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

    The required travel and health documents for your San Sebastián Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Sebastián Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Detroit to San Sebastian?

    Price Alerts will notify you by email when the price for flights to San Sebastian from Detroit decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Detroit to San Sebastian with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near San Sebastian?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Detroit to San Sebastian. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to San Sebastian from Detroit with this policy.

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

momondo helps you find the best flight between Detroit 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 Detroit to San Sebastian right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Detroit to San Sebastian now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Sebastian and let you know when they change.

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Fri 4/24
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