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Cheap flights from Baltimore to San Sebastian from $408

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Baltimore to San Sebastian departing on 8/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Baltimore to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
10:39 am - 8:50 pmBWI  Baltimore/Washington-EAS San Sebastián
28h 11m2 stops Charlotte Douglas Madrid Barajas
British Airways Logo
9:30 pm - 9:20 pmEAS  San Sebastián-BWI Baltimore/Washington
29h 50m2 stops Madrid Barajas Charlotte Douglas
$927British Airways
Wed, Sep 23 - Wed, Sep 30
Multiple Airlines Logo
6:55 pm - 8:50 pmBWI  Baltimore/Washington-EAS San Sebastián
19h 55m2 stops London Heathrow Madrid Barajas
Multiple Airlines Logo
9:30 pm - 11:09 pmEAS  San Sebastián-BWI Baltimore/Washington
31h 39m2 stops Madrid Barajas Charlotte Douglas
$966Multiple Airlines
Mon, Nov 9 - Sun, Nov 15
British Airways Logo
9:30 pm - 12:35 pmBWI  Baltimore/Washington-EAS San Sebastián
33h 05m1 stop London Heathrow
British Airways Logo
9:30 pm - 10:17 pmEAS  San Sebastián-BWI Baltimore/Washington
30h 47m2 stops Madrid Barajas Charlotte Douglas
$995British Airways
Sat, Oct 3 - Tue, Oct 20
British Airways Logo
9:35 pm - 8:50 pmBWI  Baltimore/Washington-EAS San Sebastián
17h 15m2 stops London Heathrow Madrid Barajas
British Airways Logo
9:30 pm - 8:19 pmEAS  San Sebastián-BWI Baltimore/Washington
28h 49m2 stops Madrid Barajas Charlotte Douglas
$1,070British Airways
Sun, Sep 20 - Sat, Sep 26
Multiple Airlines Logo
8:30 pm - 8:20 amBWI  Baltimore/Washington-EAS San Sebastián
29h 50m3 stops Reykjavik Keflavik Intl Brussels Bruxelles-National Barcelona-El Prat
Multiple Airlines Logo
8:55 am - 10:15 pmEAS  San Sebastián-BWI Baltimore/Washington
19h 20m3 stops Barcelona-El Prat London Gatwick Reykjavik Keflavik Intl
$1,071Multiple Airlines
Sat, Oct 3 - Tue, Oct 20
British Airways Logo
5:48 pm - 1:00 pmBWI  Baltimore/Washington-EAS San Sebastián
37h 12m2 stops Charlotte Douglas Madrid Barajas
British Airways Logo
9:30 pm - 7:40 pmEAS  San Sebastián-BWI Baltimore/Washington
28h 10m2 stops Madrid Barajas London Heathrow
$1,094British Airways
Thu, Oct 15 - Wed, Oct 21
Multiple Airlines Logo
7:40 pm - 1:35 pmBWI  Baltimore/Washington-EAS San Sebastián
35h 55m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Barcelona-El Prat
Multiple Airlines Logo
6:10 pm - 6:40 pmEAS  San Sebastián-BWI Baltimore/Washington
30h 30m3 stops Barcelona-El Prat Kastrup Copenhagen Reykjavik Keflavik Intl
$1,117Multiple Airlines
Thu, Nov 5 - Sun, Nov 8
British Airways Logo
11:13 am - 8:50 pmBWI  Baltimore/Washington-EAS San Sebastián
27h 37m2 stops Charlotte Douglas Madrid Barajas
British Airways Logo
9:30 pm - 11:21 pmEAS  San Sebastián-BWI Baltimore/Washington
31h 51m2 stops Madrid Barajas Charlotte Douglas
$1,129British Airways
Fri, Jan 8 - Tue, Jan 12
Iberia Logo
9:35 pm - 8:20 amBWI  Baltimore/Washington-EAS San Sebastián
28h 45m2 stops London Heathrow Barcelona-El Prat
Iberia Logo
9:30 pm - 7:45 pmEAS  San Sebastián-BWI Baltimore/Washington
28h 15m2 stops Madrid Barajas London Heathrow
$1,325Iberia
Sun, Sep 20 - Sat, Sep 26
American Airlines Logo
9:30 pm - 5:00 pmBWI  Baltimore/Washington-EAS San Sebastián
13h 30m2 stops London Heathrow Madrid Barajas
American Airlines Logo
9:20 am - 9:59 pmEAS  San Sebastián-BWI Baltimore/Washington
18h 39m2 stops Madrid Barajas Chicago O'Hare Intl
$1,478American Airlines
Fri, Sep 4 - Tue, Sep 8

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Iberia flights from Baltimore to San Sebastian

Our best Iberia deals on Baltimore to San Sebastian flight tickets
Iberia
Sep 20
BWI9:35 pmBaltimore/Washington
28h 45m
2 stops
EAS8:20 amSan Sebastián
Sep 26
EAS9:30 pmSan Sebastián
28h 15m
2 stops
BWI7:45 pmBaltimore/Washington
$1,325
Iberia
Sep 3
BWI9:30 pmBaltimore/Washington
28h 50m
2 stops
EAS8:20 amSan Sebastián
Sep 8
EAS9:30 pmSan Sebastián
25h 45m
2 stops
BWI5:15 pmBaltimore/Washington
$1,650
Iberia
Oct 9
BWI9:30 pmBaltimore/Washington
17h 20m
2 stops
EAS8:50 pmSan Sebastián
Oct 17
EAS8:55 amSan Sebastián
16h 45m
2 stops
BWI7:40 pmBaltimore/Washington
$1,656

British Airways flights from Baltimore to San Sebastian

Our best British Airways deals on Baltimore to San Sebastian flight tickets
British Airways
Sep 23
BWI10:39 amBaltimore/Washington
28h 11m
2 stops
EAS8:50 pmSan Sebastián
Sep 30
EAS9:30 pmSan Sebastián
29h 50m
2 stops
BWI9:20 pmBaltimore/Washington
$927
British Airways
Oct 3
BWI9:30 pmBaltimore/Washington
33h 05m
1 stop
EAS12:35 pmSan Sebastián
Oct 20
EAS9:30 pmSan Sebastián
30h 47m
2 stops
BWI10:17 pmBaltimore/Washington
$995
British Airways
Sep 20
BWI9:35 pmBaltimore/Washington
17h 15m
2 stops
EAS8:50 pmSan Sebastián
Sep 26
EAS9:30 pmSan Sebastián
28h 49m
2 stops
BWI8:19 pmBaltimore/Washington
$1,070

momondo Fare Finder

 
Customize your flight search to find flights from Baltimore 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 August 12, 2026.
Use the filters below to find and compare flights from Baltimore to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreSan Sebastian

BWI Baltimore/Washington - EAS San Sebastián

BWIEAS

Baltimore/Washington

Wed 9/23

10:39 am-8:50 pm

2 stops28h 11m

San Sebastián

Wed 9/30

9:30 pm-9:20 pm

2 stops29h 50m

$927

BaltimoreSan Sebastian

BWI Baltimore/Washington - EAS San Sebastián

BWIEAS

Baltimore/Washington

Mon 11/9

6:55 pm-8:50 pm

2 stops19h 55m

San Sebastián

Sun 11/15

9:30 pm-11:09 pm

2 stops31h 39m

$966

BaltimoreSan Sebastian

BWI Baltimore/Washington - EAS San Sebastián

BWIEAS

Baltimore/Washington

Sat 10/3

9:30 pm-12:35 pm

1 stop33h 05m

San Sebastián

Tue 10/20

9:30 pm-10:17 pm

2 stops30h 47m

$995

BaltimoreSan Sebastian

BWI Baltimore/Washington - EAS San Sebastián

BWIEAS

Baltimore/Washington

Sun 9/20

9:35 pm-8:50 pm

2 stops17h 15m

San Sebastián

Sat 9/26

9:30 pm-8:19 pm

2 stops28h 49m

$1,070

BaltimoreSan Sebastian

BWI Baltimore/Washington - EAS San Sebastián

BWIEAS

Baltimore/Washington

Sat 10/3

8:30 pm-8:20 am

3 stops29h 50m

San Sebastián

Tue 10/20

8:55 am-10:15 pm

3 stops19h 20m

$1,071

BaltimoreSan Sebastian

BWI Baltimore/Washington - EAS San Sebastián

BWIEAS

Baltimore/Washington

Thu 10/15

5:48 pm-1:00 pm

2 stops37h 12m

San Sebastián

Wed 10/21

9:30 pm-7:40 pm

2 stops28h 10m

$1,094

BaltimoreSan Sebastian

BWI Baltimore/Washington - EAS San Sebastián

BWIEAS

Baltimore/Washington

Thu 11/5

7:40 pm-1:35 pm

3 stops35h 55m

San Sebastián

Sun 11/8

6:10 pm-6:40 pm

3 stops30h 30m

$1,117

BaltimoreSan Sebastian

BWI Baltimore/Washington - EAS San Sebastián

BWIEAS

Baltimore/Washington

Fri 1/8

11:13 am-8:50 pm

2 stops27h 37m

San Sebastián

Tue 1/12

9:30 pm-11:21 pm

2 stops31h 51m

$1,129

BaltimoreSan Sebastian

BWI Baltimore/Washington - EAS San Sebastián

BWIEAS

Baltimore/Washington

Sun 9/20

9:35 pm-8:20 am

2 stops28h 45m

San Sebastián

Sat 9/26

9:30 pm-7:45 pm

2 stops28h 15m

$1,325
Quickest round-trip

BaltimoreSan Sebastian

BWI Baltimore/Washington - EAS San Sebastián

BWIEAS

Baltimore/Washington

Fri 9/4

9:30 pm-5:00 pm

2 stops13h 30m

San Sebastián

Tue 9/8

9:20 am-9:59 pm

2 stops18h 39m

$1,478

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to San Sebastian from

How to get the cheapest flight ticket from Baltimore 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 Baltimore/Washington to San Sebastián?

British Airways is the most popular carrier operating from Baltimore/Washington to San Sebastián

What airlines fly to San Sebastian?

Lufthansa, TAP AIR PORTUGAL and United Airlines are the top three most popular airlines that fly to San Sebastian from Baltimore according to our data. Lufthansa is the first choice among our users, with 37% of people opting to fly with this airline when traveling to San Sebastian. Keep in mind that there are 3 different airlines that fly to San Sebastian on a routine basis, so you have a few additional options to choose from.

When to book flights from Baltimore to San Sebastian

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

Cheap Baltimore to San Sebastian (BWI to EAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Baltimore to San Sebastian

Fastest flight time

27h 37m

Direct flights

None
The fastest flight from Baltimore to San Sebastian takes 27h 37m
There are no direct flights from Baltimore to San Sebastian. There are no popular flight routes from Baltimore to San Sebastian.
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Frequently asked questions about flying from Baltimore to San Sebastian

  • How far is Baltimore/Washington to San Sebastián by plane?

    There are 3748.9 mi between Baltimore/Washington and San Sebastián. Flights usually cover this in 27h 37m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Baltimore/Washington Airport to San Sebastián Airport?

    Prices for flights from Baltimore/Washington Airport to San Sebastián Airport were last updated today.

  • How old do you have to be to fly from Baltimore/Washington Airport to San Sebastián Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Baltimore/Washington Airport to San Sebastián Airport.

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

    The necessary travel and health documents for your San Sebastián Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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

Why use momondo?

Why should I use momondo to find a flight deal from Baltimore to San Sebastian?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Baltimore to San Sebastian for you.

Can I find flights from Baltimore to San Sebastian with flexible booking policies on momondo?

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

How can momondo help me find flights from Baltimore to San Sebastian?

Once you have performed a search for Baltimore to San Sebastian flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to San Sebastian from Baltimore are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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