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Cheap flights from Washington, D.C. Reagan-National Airport to San Sebastian from $769

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 6/20. 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.
American Airlines Logo
12:59 pm - 8:40 am
DCA
-
EAS
13h 41m
2 stops
American Airlines Logo
1:40 pm - 12:31 am
EAS
-
DCA
16h 51m
2 stops
$945American Airlines
Thu, Sep 17 - Sun, Oct 4
Multiple Airlines Logo
4:59 pm - 8:50 pm
DCA
-
EAS
21h 51m
2 stops
Multiple Airlines Logo
1:40 pm - 7:40 am
EAS
-
DCA
24h 00m
2 stops
$984Multiple Airlines
Tue, Sep 22 - Tue, Sep 29
Iberia Logo
2:54 pm - 1:00 pm
DCA
-
EAS
16h 06m
2 stops
Iberia Logo
9:20 am - 11:31 pm
EAS
-
DCA
20h 11m
2 stops
$1,046Iberia
Wed, Jul 15 - Wed, Jul 22
British Airways Logo
4:39 pm - 8:50 pm
DCA
-
EAS
22h 11m
2 stops
British Airways Logo
1:40 pm - 11:31 pm
EAS
-
DCA
15h 51m
2 stops
$1,111British Airways
Fri, Jul 17 - Tue, Jul 28
Multiple Airlines Logo
2:59 pm - 8:50 pm
DCA
-
EAS
23h 51m
2 stops
Multiple Airlines Logo
9:30 pm - 9:26 pm
EAS
-
DCA
29h 56m
2 stops
$1,131Multiple Airlines
Fri, Jul 17 - Wed, Jul 29
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
$1,148British Airways
Mon, Sep 21 - Wed, Sep 30
Multiple Airlines Logo
12:59 pm - 1:00 pm
DCA
-
EAS
18h 01m
2 stops
Multiple Airlines Logo
9:30 pm - 8:00 pm
EAS
-
DCA
28h 30m
2 stops
$1,154Multiple Airlines
Mon, Jun 29 - Mon, Jul 6
British Airways Logo
11:34 am - 8:50 pm
DCA
-
EAS
27h 16m
2 stops
British Airways Logo
9:30 pm - 11:33 pm
EAS
-
DCA
32h 03m
2 stops
$1,161British Airways
Wed, Aug 12 - Wed, Aug 19
British Airways Logo
11:45 am - 8:50 pm
DCA
-
EAS
27h 05m
2 stops
British Airways Logo
9:30 pm - 11:33 pm
EAS
-
DCA
32h 03m
2 stops
$1,174British Airways
Mon, Aug 10 - Wed, Aug 19
Multiple Airlines Logo
2:59 pm - 8:50 pm
DCA
-
EAS
23h 51m
2 stops
Multiple Airlines Logo
9:30 pm - 8:59 pm
EAS
-
DCA
29h 29m
2 stops
$1,216Multiple Airlines
Fri, Jul 31 - Mon, Aug 3

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

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to San Sebastian flight tickets
American Airlines
Sep 17
DCA12:59 pmWashington, D.C. Reagan-National
13h 41m
2 stops
EAS8:40 amSan Sebastián
Oct 4
EAS1:40 pmSan Sebastián
16h 51m
2 stops
DCA12:31 amWashington, D.C. Reagan-National
$945
American Airlines
Aug 3
DCA11:56 amWashington, D.C. Reagan-National
14h 44m
2 stops
EAS8:40 amSan Sebastián
Aug 10
EAS9:20 amSan Sebastián
18h 10m
2 stops
DCA9:30 pmWashington, D.C. Reagan-National
$1,311
American Airlines
Aug 1
DCA11:59 amWashington, D.C. Reagan-National
14h 41m
2 stops
EAS8:40 amSan Sebastián
Aug 10
EAS9:20 amSan Sebastián
18h 10m
2 stops
DCA9:30 pmWashington, D.C. Reagan-National
$1,361

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 15
DCA2:54 pmWashington, D.C. Reagan-National
16h 06m
2 stops
EAS1:00 pmSan Sebastián
Jul 22
EAS9:20 amSan Sebastián
20h 11m
2 stops
DCA11:31 pmWashington, D.C. Reagan-National
$1,046
Iberia
Aug 9
DCA1:47 pmWashington, D.C. Reagan-National
12h 53m
2 stops
EAS8:40 amSan Sebastián
Aug 16
EAS9:30 pmSan Sebastián
32h 03m
2 stops
DCA11:33 pmWashington, D.C. Reagan-National
$1,288
Iberia
Jul 22
DCA2:54 pmWashington, D.C. Reagan-National
35h 46m
2 stops
EAS8:40 amSan Sebastián
Aug 2
EAS9:30 pmSan Sebastián
32h 01m
2 stops
DCA11:31 pmWashington, D.C. Reagan-National
$1,297

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 May 26, 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
Quickest round-trip

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Thu 9/17

12:59 pm-8:40 am

2 stops13h 41m

San Sebastián

Sun 10/4

1:40 pm-12:31 am

2 stops16h 51m

$945

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Tue 9/22

4:59 pm-8:50 pm

2 stops21h 51m

San Sebastián

Tue 9/29

1:40 pm-7:40 am

2 stops24h 00m

$984

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Wed 7/15

2:54 pm-1:00 pm

2 stops16h 06m

San Sebastián

Wed 7/22

9:20 am-11:31 pm

2 stops20h 11m

$1,046

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Fri 7/17

4:39 pm-8:50 pm

2 stops22h 11m

San Sebastián

Tue 7/28

1:40 pm-11:31 pm

2 stops15h 51m

$1,111

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Fri 7/17

2:59 pm-8:50 pm

2 stops23h 51m

San Sebastián

Wed 7/29

9:30 pm-9:26 pm

2 stops29h 56m

$1,131

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

$1,148

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 6/29

12:59 pm-1:00 pm

2 stops18h 01m

San Sebastián

Mon 7/6

9:30 pm-8:00 pm

2 stops28h 30m

$1,154

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Wed 8/12

11:34 am-8:50 pm

2 stops27h 16m

San Sebastián

Wed 8/19

9:30 pm-11:33 pm

2 stops32h 03m

$1,161

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 8/10

11:45 am-8:50 pm

2 stops27h 05m

San Sebastián

Wed 8/19

9:30 pm-11:33 pm

2 stops32h 03m

$1,174

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Fri 7/31

2:59 pm-8:50 pm

2 stops23h 51m

San Sebastián

Mon 8/3

9:30 pm-8:59 pm

2 stops29h 29m

$1,216

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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

13h 02m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to San Sebastian takes 13h 02m
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 13h 02m.

  • 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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