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Cheap flights from Washington, D.C. Reagan-National Airport to San Sebastian from $733

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 3/24. 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

Enter your travel dates to find the best prices.
Iberia Logo
1:48 pm - 8:40 am
DCA
-
EAS
13h 52m
2 stops
Iberia Logo
1:40 pm - 10:16 pm
EAS
-
DCA
38h 36m
2 stops
$733Iberia
Tue, Mar 24 - Tue, Mar 31
Iberia Logo
1:44 pm - 8:40 am
DCA
-
EAS
12h 56m
2 stops
Iberia Logo
9:20 am - 11:00 pm
EAS
-
DCA
18h 40m
2 stops
$782Iberia
Mon, Mar 2 - Wed, Mar 11
Multiple Airlines Logo
1:48 pm - 8:40 am
DCA
-
EAS
13h 52m
2 stops
Multiple Airlines Logo
9:30 pm - 7:59 am
EAS
-
DCA
40h 29m
2 stops
$961Multiple Airlines
Mon, Mar 23 - Mon, Mar 30
Iberia Logo
5:00 pm - 8:50 pm
DCA
-
EAS
21h 50m
2 stops
Iberia Logo
9:30 pm - 11:17 pm
EAS
-
DCA
31h 47m
2 stops
$1,035Iberia
Tue, Aug 4 - Wed, Aug 12
Iberia Logo
1:24 pm - 8:40 am
DCA
-
EAS
13h 16m
2 stops
Iberia Logo
9:20 am - 8:14 pm
EAS
-
DCA
16h 54m
2 stops
$1,425Iberia
Sun, Jul 19 - Sat, Aug 15

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
Mar 24
DCA1:48 pmWashington, D.C. Reagan-National
13h 52m
2 stops
EAS8:40 amSan Sebastián
Mar 31
EAS1:40 pmSan Sebastián
38h 36m
2 stops
DCA10:16 pmWashington, D.C. Reagan-National
$733
Iberia
Mar 2
DCA1:44 pmWashington, D.C. Reagan-National
12h 56m
2 stops
EAS8:40 amSan Sebastián
Mar 11
EAS9:20 amSan Sebastián
18h 40m
2 stops
DCA11:00 pmWashington, D.C. Reagan-National
$782
Iberia
Aug 4
DCA5:00 pmWashington, D.C. Reagan-National
21h 50m
2 stops
EAS8:50 pmSan Sebastián
Aug 12
EAS9:30 pmSan Sebastián
31h 47m
2 stops
DCA11:17 pmWashington, D.C. Reagan-National
$1,035

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 February 8, 2026.
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

Tue 3/24

1:48 pm-8:40 am

2 stops13h 52m

San Sebastián

Tue 3/31

1:40 pm-10:16 pm

2 stops38h 36m

$733

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 3/2

1:44 pm-8:40 am

2 stops12h 56m

San Sebastián

Wed 3/11

9:20 am-11:00 pm

2 stops18h 40m

$782

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 3/23

1:48 pm-8:40 am

2 stops13h 52m

San Sebastián

Mon 3/30

9:30 pm-7:59 am

2 stops40h 29m

$961

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Tue 8/4

5:00 pm-8:50 pm

2 stops21h 50m

San Sebastián

Wed 8/12

9:30 pm-11:17 pm

2 stops31h 47m

$1,035

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Sun 7/19

1:24 pm-8:40 am

2 stops13h 16m

San Sebastián

Sat 8/15

9:20 am-8:14 pm

2 stops16h 54m

$1,425

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 5/25

1:24 pm-8:40 am

2 stops13h 16m

$1,008

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Sun 5/24

1:24 pm-8:40 am

2 stops13h 16m

$1,020

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Fri 7/24

1:24 pm-8:40 am

2 stops13h 16m

$1,090

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Wed 5/27

9:40 am-8:40 am

2 stops17h 00m

$1,108

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Sat 5/23

10:20 pm-8:40 am

2 stops28h 20m

$1,122

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 airline that flies from Washington, D.C. Reagan-National to San Sebastián?

Iberia and American Airlines are the most popular carriers operating from Washington, D.C. Reagan-National to San Sebastián

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

Fastest flight time

13h 16m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to San Sebastian takes 13h 16m
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 16m.

  • 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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