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Cheap flights from Washington, D.C. Reagan-National Airport to San Sebastian from $788

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to San Sebastian departing on 11/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Reagan-National Airport to San Sebastian

Cheap round-trip flights

American Airlines Logo
5:45 pm - 8:50 pmDCA-EAS
21h 05m2 stops
American Airlines Logo
1:40 pm - 10:17 amEAS-DCA
26h 37m2 stops
$788American Airlines
Find Deal
Fri, Nov 7 - Tue, Nov 11
Iberia Logo
1:39 pm - 8:40 amDCA-EAS
13h 01m2 stops
Iberia Logo
9:30 pm - 11:07 pmEAS-DCA
31h 37m2 stops
$1,057Iberia
Find Deal
Wed, Sep 24 - Sun, Sep 28
Iberia Logo
1:39 pm - 8:40 amDCA-EAS
13h 01m2 stops
Iberia Logo
9:30 pm - 11:07 pmEAS-DCA
31h 37m2 stops
$1,064Iberia
Find Deal
Wed, Sep 24 - Sun, Sep 28
Iberia Logo
1:39 pm - 8:40 amDCA-EAS
13h 01m2 stops
Iberia Logo
9:30 pm - 11:07 pmEAS-DCA
31h 37m2 stops
$1,292Iberia
Find Deal
Wed, Sep 24 - Sun, Sep 28

Iberia flights from Washington, D.C. Reagan-National Airport to San Sebastian

Our best Iberia deals on Washington, D.C. Reagan-National Airport to San Sebastian flight tickets
Iberia
Sep 24
DCA1:39 pmWashington, D.C. Reagan-National
13h 01m
2 stops
EAS8:40 amSan Sebastián
Sep 28
EAS9:30 pmSan Sebastián
31h 37m
2 stops
DCA11:07 pmWashington, D.C. Reagan-National
$1,057
Find similar
Iberia
Sep 24
DCA1:39 pmWashington, D.C. Reagan-National
13h 01m
2 stops
EAS8:40 amSan Sebastián
Sep 28
EAS9:30 pmSan Sebastián
31h 37m
2 stops
DCA11:07 pmWashington, D.C. Reagan-National
$1,064
Find similar
Iberia
Sep 24
DCA1:39 pmWashington, D.C. Reagan-National
13h 01m
2 stops
EAS8:40 amSan Sebastián
Sep 28
EAS9:30 pmSan Sebastián
31h 37m
2 stops
DCA11:07 pmWashington, D.C. Reagan-National
$1,292
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 September 10, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Fri 11/7

5:45 pm-8:50 pm

2 stops21h 05m

San Sebastián

Tue 11/11

1:40 pm-10:17 am

2 stops26h 37m

$788

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Wed 9/24

1:39 pm-8:40 am

2 stops13h 01m

San Sebastián

Sun 9/28

9:30 pm-11:07 pm

2 stops31h 37m

$1,057

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Wed 9/24

1:39 pm-8:40 am

2 stops13h 01m

San Sebastián

Sun 9/28

9:30 pm-11:07 pm

2 stops31h 37m

$1,064

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Wed 9/24

1:39 pm-8:40 am

2 stops13h 01m

San Sebastián

Sun 9/28

9:30 pm-11:07 pm

2 stops31h 37m

$1,292

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 Washington, D.C. Reagan-National Airport 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 is the cheapest day to depart on your flight to San Sebastian?

On average, the least expensive day to fly to San Sebastian from Washington, D.C. Reagan-National Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as $702. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Reagan-National Airport to San Sebastian for around $1,191.

What is the cheapest time of day to depart on your flight to San Sebastian?

Flying to San Sebastian from Washington, D.C. Reagan-National Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $957 when looking at flights departing in the evening. Flights to San Sebastian are more costly in the afternoon, with an average ticket price of $1,087. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Washington, D.C. Reagan-National Airport to San Sebastian

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

Cheap Washington, D.C. Reagan-National Airport to San Sebastian (DCA to EAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to San Sebastian

Direct flights

None
There are no direct flights from Washington, D.C. Reagan-National Airport to San Sebastian. There are no popular flight routes from Washington, D.C. Reagan-National Airport to San Sebastian.
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  • How far is Washington, D.C. Reagan-National to San Sebastián by plane?

    San Sebastián is 3783.9 mi away from Washington, D.C. Reagan-National. By plane, this route typically takes 13h 01m.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to San Sebastián Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to San Sebastián Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to San Sebastián Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to San Sebastián Airport.

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

    The travel and health documents you'll need for your trip to San Sebastián Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Sebastián Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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 Washington, D.C. to San Sebastian?

It is quick and easy to find Washington, D.C. to San Sebastian flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Sebastian that suits you.

Can I find flights from Washington, D.C. to San Sebastian with flexible booking policies on momondo?

All flight searches from Washington, D.C. to San Sebastian on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to San Sebastian?

Once all potential Washington, D.C. to San Sebastian flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to San Sebastian, momondo offers a useful price alert feature which will track prices for flights to San Sebastian from Washington, D.C. and alert you when they change.

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