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Cheap flights from Washington, D.C. Reagan-National Airport to San Sebastian from $664

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 8/28. 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 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
2:56 pm - 1:00 pm
DCA
-
EAS
16h 04m
2 stops
American Airlines Logo
9:20 am - 9:29 pm
EAS
-
DCA
18h 09m
2 stops
$1,006American Airlines
Fri, Oct 9 - Tue, Oct 13
Multiple Airlines Logo
4:59 pm - 1:50 pm
DCA
-
EAS
14h 51m
2 stops
Multiple Airlines Logo
9:20 am - 9:29 pm
EAS
-
DCA
18h 09m
2 stops
$1,008Multiple Airlines
Sun, Sep 20 - Tue, Oct 6
American Airlines Logo
8:32 am - 8:40 am
DCA
-
EAS
18h 08m
2 stops
American Airlines Logo
9:20 am - 8:59 pm
EAS
-
DCA
17h 39m
2 stops
$1,025American Airlines
Thu, Aug 20 - Thu, Aug 27
Iberia Logo
1:59 pm - 8:40 am
DCA
-
EAS
12h 41m
2 stops
Iberia Logo
9:30 pm - 8:59 pm
EAS
-
DCA
29h 29m
2 stops
$1,035Iberia
Tue, Aug 25 - Sun, Aug 30
Iberia Logo
1:59 pm - 8:50 pm
DCA
-
EAS
24h 51m
2 stops
Iberia Logo
9:30 pm - 8:59 pm
EAS
-
DCA
29h 29m
2 stops
$1,103Iberia
Fri, Aug 14 - Tue, Aug 18
British Airways Logo
6:00 am - 1:00 pm
DCA
-
EAS
25h 00m
2 stops
British Airways Logo
9:30 pm - 9:13 pm
EAS
-
DCA
29h 43m
2 stops
$1,203British Airways
Mon, Sep 21 - Wed, Sep 30
British Airways Logo
6:19 pm - 8:50 pm
DCA
-
EAS
20h 31m
2 stops
British Airways Logo
9:30 pm - 11:10 pm
EAS
-
DCA
31h 40m
2 stops
$1,203British Airways
Mon, Sep 21 - Wed, Sep 30
British Airways Logo
12:59 pm - 1:00 pm
DCA
-
EAS
18h 01m
2 stops
British Airways Logo
9:30 pm - 11:10 pm
EAS
-
DCA
31h 40m
2 stops
$1,208British Airways
Mon, Sep 21 - Wed, Sep 30
Multiple Airlines Logo
12:40 pm - 5:20 pm
DCA
-
EAS
22h 40m
3 stops
Multiple Airlines Logo
8:55 am - 9:50 pm
EAS
-
DCA
18h 55m
2 stops
$1,209Multiple Airlines
Fri, Oct 9 - Tue, Oct 13
Iberia Logo
3:59 pm - 8:40 am
DCA
-
EAS
34h 41m
2 stops
Iberia Logo
9:20 am - 8:59 pm
EAS
-
DCA
17h 39m
2 stops
$1,212Iberia
Sat, Aug 22 - Mon, Aug 31

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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
DCA6:19 pmWashington, D.C. Reagan-National
20h 31m
2 stops
EAS8:50 pmSan Sebastián
Sep 30
EAS9:30 pmSan Sebastián
31h 40m
2 stops
DCA11:10 pmWashington, D.C. Reagan-National
$1,203
British Airways
Sep 21
DCA12:59 pmWashington, D.C. Reagan-National
18h 01m
2 stops
EAS1:00 pmSan Sebastián
Sep 30
EAS9:30 pmSan Sebastián
31h 40m
2 stops
DCA11:10 pmWashington, D.C. Reagan-National
$1,208
British Airways
Sep 21
DCA3:58 pmWashington, D.C. Reagan-National
22h 52m
2 stops
EAS8:50 pmSan Sebastián
Sep 30
EAS9:30 pmSan Sebastián
31h 40m
2 stops
DCA11:10 pmWashington, D.C. Reagan-National
$1,227

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
Aug 25
DCA1:59 pmWashington, D.C. Reagan-National
12h 41m
2 stops
EAS8:40 amSan Sebastián
Aug 30
EAS9:30 pmSan Sebastián
29h 29m
2 stops
DCA8:59 pmWashington, D.C. Reagan-National
$1,035
Iberia
Aug 14
DCA1:59 pmWashington, D.C. Reagan-National
24h 51m
2 stops
EAS8:50 pmSan Sebastián
Aug 18
EAS9:30 pmSan Sebastián
29h 29m
2 stops
DCA8:59 pmWashington, D.C. Reagan-National
$1,103
Iberia
Aug 22
DCA3:59 pmWashington, D.C. Reagan-National
34h 41m
2 stops
EAS8:40 amSan Sebastián
Aug 31
EAS9:20 amSan Sebastián
17h 39m
2 stops
DCA8:59 pmWashington, D.C. Reagan-National
$1,212

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 July 29, 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

Fri 10/9

2:56 pm-1:00 pm

2 stops16h 04m

San Sebastián

Tue 10/13

9:20 am-9:29 pm

2 stops18h 09m

$1,006
Quickest round-trip

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Sun 9/20

4:59 pm-1:50 pm

2 stops14h 51m

San Sebastián

Tue 10/6

9:20 am-9:29 pm

2 stops18h 09m

$1,008

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Thu 8/20

8:32 am-8:40 am

2 stops18h 08m

San Sebastián

Thu 8/27

9:20 am-8:59 pm

2 stops17h 39m

$1,025

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Tue 8/25

1:59 pm-8:40 am

2 stops12h 41m

San Sebastián

Sun 8/30

9:30 pm-8:59 pm

2 stops29h 29m

$1,035

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Fri 8/14

1:59 pm-8:50 pm

2 stops24h 51m

San Sebastián

Tue 8/18

9:30 pm-8:59 pm

2 stops29h 29m

$1,103

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 9/21

6:00 am-1:00 pm

2 stops25h 00m

San Sebastián

Wed 9/30

9:30 pm-9:13 pm

2 stops29h 43m

$1,203

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 9/21

6:19 pm-8:50 pm

2 stops20h 31m

San Sebastián

Wed 9/30

9:30 pm-11:10 pm

2 stops31h 40m

$1,203

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 9/21

12:59 pm-1:00 pm

2 stops18h 01m

San Sebastián

Wed 9/30

9:30 pm-11:10 pm

2 stops31h 40m

$1,208

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Fri 10/9

12:40 pm-5:20 pm

3 stops22h 40m

San Sebastián

Tue 10/13

8:55 am-9:50 pm

2 stops18h 55m

$1,209

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Sat 8/22

3:59 pm-8:40 am

2 stops34h 41m

San Sebastián

Mon 8/31

9:20 am-8:59 pm

2 stops17h 39m

$1,212

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

12h 41m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to San Sebastian takes 12h 41m
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.
Search flight deals

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 12h 41m.

  • 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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