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Cheap flights from Washington, D.C. Reagan-National Airport to San Sebastian from $830

This is the cheapest one-way 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 5/18. 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 Washington, D.C. Reagan-National Airport to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:25 pm - 8:40 am
DCA
-
EAS
13h 15m
2 stops
American Airlines Logo
9:20 am - 11:13 pm
EAS
-
DCA
19h 53m
2 stops
$1,022American Airlines
Thu, May 14 - Thu, May 21
Iberia Logo
8:06 pm - 8:50 pm
DCA
-
EAS
42h 44m
2 stops
Iberia Logo
9:30 pm - 9:25 pm
EAS
-
DCA
53h 55m
2 stops
$1,146Iberia
Fri, Jul 17 - Sat, Jul 25
British Airways Logo
3:15 pm - 1:00 pm
DCA
-
EAS
15h 45m
2 stops
British Airways Logo
9:30 pm - 11:02 pm
EAS
-
DCA
31h 32m
2 stops
$1,232British Airways
Mon, Sep 21 - Wed, Sep 30
British Airways Logo
1:38 pm - 1:00 pm
DCA
-
EAS
17h 22m
2 stops
British Airways Logo
9:30 pm - 11:02 pm
EAS
-
DCA
31h 32m
2 stops
$1,234British Airways
Mon, Sep 21 - Wed, Sep 30
Multiple Airlines Logo
4:20 pm - 8:20 am
DCA
-
EAS
34h 00m
3 stops
Multiple Airlines Logo
8:55 am - 10:18 am
EAS
-
DCA
31h 23m
3 stops
$1,312Multiple Airlines
Mon, Jun 1 - Sat, Jun 27
British Airways Logo
11:30 am - 8:50 pm
DCA
-
EAS
27h 20m
2 stops
British Airways Logo
9:30 pm - 11:17 pm
EAS
-
DCA
31h 47m
2 stops
$1,314British Airways
Fri, Aug 7 - Sat, Aug 15
Iberia Logo
2:35 pm - 8:40 am
DCA
-
EAS
36h 05m
2 stops
Iberia Logo
9:30 pm - 9:23 pm
EAS
-
DCA
53h 53m
2 stops
$1,329Iberia
Thu, Aug 6 - Sat, Aug 15
American Airlines Logo
2:24 pm - 1:00 pm
DCA
-
EAS
16h 36m
2 stops
American Airlines Logo
1:40 pm - 11:14 pm
EAS
-
DCA
15h 34m
2 stops
$1,374American Airlines
Mon, Jun 1 - Sat, Jun 27
Multiple Airlines Logo
4:20 pm - 8:20 am
DCA
-
EAS
34h 00m
3 stops
Multiple Airlines Logo
8:55 am - 9:48 pm
EAS
-
DCA
18h 53m
2 stops
$1,399Multiple Airlines
Mon, Jun 1 - Sat, Jun 27
Multiple Airlines Logo
9:40 am - 8:20 am
DCA
-
EAS
40h 40m
3 stops
Multiple Airlines Logo
8:55 am - 9:48 pm
EAS
-
DCA
18h 53m
2 stops
$1,400Multiple Airlines
Mon, Jun 1 - Sat, Jun 27

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
Jul 17
DCA8:06 pmWashington, D.C. Reagan-National
42h 44m
2 stops
EAS8:50 pmSan Sebastián
Jul 25
EAS9:30 pmSan Sebastián
53h 55m
2 stops
DCA9:25 pmWashington, D.C. Reagan-National
$1,146
Iberia
Aug 6
DCA2:35 pmWashington, D.C. Reagan-National
36h 05m
2 stops
EAS8:40 amSan Sebastián
Aug 15
EAS9:30 pmSan Sebastián
53h 53m
2 stops
DCA9:23 pmWashington, D.C. Reagan-National
$1,329
Iberia
Jul 5
DCA2:54 pmWashington, D.C. Reagan-National
35h 46m
2 stops
EAS8:40 amSan Sebastián
Jul 12
EAS9:30 pmSan Sebastián
31h 52m
2 stops
DCA11:22 pmWashington, D.C. Reagan-National
$6,306

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

Our best British Airways deals on Washington, D.C. Reagan-National Airport to San Sebastian flight tickets
British Airways
Sep 21
DCA3:15 pmWashington, D.C. Reagan-National
15h 45m
2 stops
EAS1:00 pmSan Sebastián
Sep 30
EAS9:30 pmSan Sebastián
31h 32m
2 stops
DCA11:02 pmWashington, D.C. Reagan-National
$1,232
British Airways
Sep 21
DCA1:38 pmWashington, D.C. Reagan-National
17h 22m
2 stops
EAS1:00 pmSan Sebastián
Sep 30
EAS9:30 pmSan Sebastián
31h 32m
2 stops
DCA11:02 pmWashington, D.C. Reagan-National
$1,234
British Airways
Aug 7
DCA11:30 amWashington, D.C. Reagan-National
27h 20m
2 stops
EAS8:50 pmSan Sebastián
Aug 15
EAS9:30 pmSan Sebastián
31h 47m
2 stops
DCA11:17 pmWashington, D.C. Reagan-National
$1,314

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 April 4, 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

Cheapest round-trip

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Thu 5/14

1:25 pm-8:40 am

2 stops13h 15m

San Sebastián

Thu 5/21

9:20 am-11:13 pm

2 stops19h 53m

$1,022

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Fri 7/17

8:06 pm-8:50 pm

2 stops42h 44m

San Sebastián

Sat 7/25

9:30 pm-9:25 pm

2 stops53h 55m

$1,146

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 9/21

3:15 pm-1:00 pm

2 stops15h 45m

San Sebastián

Wed 9/30

9:30 pm-11:02 pm

2 stops31h 32m

$1,232

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 9/21

1:38 pm-1:00 pm

2 stops17h 22m

San Sebastián

Wed 9/30

9:30 pm-11:02 pm

2 stops31h 32m

$1,234

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 6/1

4:20 pm-8:20 am

3 stops34h 00m

San Sebastián

Sat 6/27

8:55 am-10:18 am

3 stops31h 23m

$1,312

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Fri 8/7

11:30 am-8:50 pm

2 stops27h 20m

San Sebastián

Sat 8/15

9:30 pm-11:17 pm

2 stops31h 47m

$1,314

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Thu 8/6

2:35 pm-8:40 am

2 stops36h 05m

San Sebastián

Sat 8/15

9:30 pm-9:23 pm

2 stops53h 53m

$1,329
Quickest round-trip

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 6/1

2:24 pm-1:00 pm

2 stops16h 36m

San Sebastián

Sat 6/27

1:40 pm-11:14 pm

2 stops15h 34m

$1,374

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 6/1

4:20 pm-8:20 am

3 stops34h 00m

San Sebastián

Sat 6/27

8:55 am-9:48 pm

2 stops18h 53m

$1,399

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 6/1

9:40 am-8:20 am

3 stops40h 40m

San Sebastián

Sat 6/27

8:55 am-9:48 pm

2 stops18h 53m

$1,400

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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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 British Airways 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

27h 20m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to San Sebastian takes 27h 20m
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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Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to San Sebastian

  • 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 27h 20m.

  • 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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