What airlines fly to San Sebastian?

Iberia, Lufthansa and American Airlines are the top three most popular airlines that fly to San Sebastian from Boston according to our data. Iberia is the first choice among our users, with 62% of people opting to fly with this airline when traveling to San Sebastian. Keep in mind that there are 8 different airlines that fly to San Sebastian on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Boston Logan Intl Airport to San Sebastián Airport?

Prices for flights from Boston Logan Intl Airport to San Sebastián Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Boston Logan Intl Airport to San Sebastián Airport?

As of January 2026, there are 2 operators available to choose from for flights from Boston Logan Intl Airport to San Sebastián Airport.

How old do you have to be to fly from Boston Logan Intl Airport to San Sebastián Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl 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.

$400 Cheap Flights from Boston to San Sebastian in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Boston to San Sebastian

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:50 pm - 8:20 am

BOS

EAS

27h 30m

1 stop

9:10 am - 9:05 pm

EAS

BOS

17h 55m

1 stop

$442Multiple Airlines

sáb., may. 2 - jue., may. 7

10:50 pm - 8:20 am

BOS

EAS

27h 30m

1 stop

8:55 am - 9:05 pm

EAS

BOS

18h 10m

1 stop

$448Multiple Airlines

jue., abr. 30 - mié., may. 13

10:50 pm - 8:20 am

BOS

EAS

27h 30m

1 stop

8:55 am - 9:05 pm

EAS

BOS

18h 10m

1 stop

$463Multiple Airlines

sáb., may. 2 - mié., may. 13

11:55 am - 1:00 pm

BOS

EAS

19h 05m

2 stops

9:20 am - 7:50 pm

EAS

BOS

16h 30m

1 stop

$473American Airlines

jue., feb. 26 - jue., mar. 5

12:59 pm - 1:00 pm

BOS

EAS

18h 01m

2 stops

9:20 am - 8:48 pm

EAS

BOS

17h 28m

2 stops

$483American Airlines

jue., feb. 26 - jue., mar. 5

9:20 pm - 1:00 pm

BOS

EAS

9h 40m

1 stop

9:30 pm - 9:05 pm

EAS

BOS

53h 35m

2 stops

$489Iberia

dom., may. 3 - dom., may. 10

9:20 pm - 1:00 pm

BOS

EAS

9h 40m

1 stop

9:20 am - 7:50 pm

EAS

BOS

16h 30m

1 stop

$494Iberia

jue., feb. 26 - jue., mar. 5

10:50 pm - 5:20 pm

BOS

EAS

12h 30m

1 stop

5:55 pm - 9:05 pm

EAS

BOS

33h 10m

1 stop

$495Multiple Airlines

mar., may. 5 - mié., may. 13

10:50 pm - 5:25 pm

BOS

EAS

12h 35m

1 stop

8:55 am - 9:05 pm

EAS

BOS

18h 10m

1 stop

$498Multiple Airlines

mié., may. 6 - mié., may. 13

10:50 pm - 5:20 pm

BOS

EAS

12h 30m

1 stop

9:10 am - 9:05 pm

EAS

BOS

17h 55m

1 stop

$503Multiple Airlines

jue., abr. 30 - jue., may. 7

American Airlines flights from Boston to San Sebastian

Our best American Airlines deals on Boston to San Sebastian flight tickets

American Airlines

Feb 26

BOS11:55 amBoston Logan Intl

19h 05m

2 stops

EAS1:00 pmSan Sebastián

Mar 5

EAS9:20 amSan Sebastián

16h 30m

1 stop

BOS7:50 pmBoston Logan Intl

$473

American Airlines

Feb 26

BOS12:59 pmBoston Logan Intl

18h 01m

2 stops

EAS1:00 pmSan Sebastián

Mar 5

EAS9:20 amSan Sebastián

17h 28m

2 stops

BOS8:48 pmBoston Logan Intl

$483

American Airlines

Feb 27

BOS11:55 amBoston Logan Intl

19h 05m

2 stops

EAS1:00 pmSan Sebastián

Mar 6

EAS9:20 amSan Sebastián

11h 55m

1 stop

BOS3:15 pmBoston Logan Intl

$513

Iberia flights from Boston to San Sebastian

Our best Iberia deals on Boston to San Sebastian flight tickets

Iberia

May 3

BOS9:20 pmBoston Logan Intl

9h 40m

1 stop

EAS1:00 pmSan Sebastián

May 10

EAS9:30 pmSan Sebastián

53h 35m

2 stops

BOS9:05 pmBoston Logan Intl

$489

Iberia

Feb 26

BOS9:20 pmBoston Logan Intl

9h 40m

1 stop

EAS1:00 pmSan Sebastián

Mar 5

EAS9:20 amSan Sebastián

16h 30m

1 stop

BOS7:50 pmBoston Logan Intl

$494

Iberia

Jan 20

BOS4:45 pmBoston Logan Intl

14h 15m

1 stop

EAS1:00 pmSan Sebastián

Jan 23

EAS9:20 amSan Sebastián

11h 55m

1 stop

BOS3:15 pmBoston Logan Intl

$628

Fly from

Fly to

Route

Depart

Return

Price

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

sáb. 5/2

10:50 pm-8:20 am

1 stop27h 30m

San Sebastián

jue. 5/7

9:10 am-9:05 pm

1 stop17h 55m

$442

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

jue. 4/30

10:50 pm-8:20 am

1 stop27h 30m

San Sebastián

mié. 5/13

8:55 am-9:05 pm

1 stop18h 10m

$448

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

sáb. 5/2

10:50 pm-8:20 am

1 stop27h 30m

San Sebastián

mié. 5/13

8:55 am-9:05 pm

1 stop18h 10m

$463

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

jue. 2/26

11:55 am-1:00 pm

2 stops19h 05m

San Sebastián

jue. 3/5

9:20 am-7:50 pm

1 stop16h 30m

$473

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

jue. 2/26

12:59 pm-1:00 pm

2 stops18h 01m

San Sebastián

jue. 3/5

9:20 am-8:48 pm

2 stops17h 28m

$483

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

dom. 5/3

9:20 pm-1:00 pm

1 stop9h 40m

San Sebastián

dom. 5/10

9:30 pm-9:05 pm

2 stops53h 35m

$489

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

jue. 2/26

9:20 pm-1:00 pm

1 stop9h 40m

San Sebastián

jue. 3/5

9:20 am-7:50 pm

1 stop16h 30m

$494

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

mar. 5/5

10:50 pm-5:20 pm

1 stop12h 30m

San Sebastián

mié. 5/13

5:55 pm-9:05 pm

1 stop33h 10m

$495

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

mié. 5/6

10:50 pm-5:25 pm

1 stop12h 35m

San Sebastián

mié. 5/13

8:55 am-9:05 pm

1 stop18h 10m

$498

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

jue. 4/30

10:50 pm-5:20 pm

1 stop12h 30m

San Sebastián

jue. 5/7

9:10 am-9:05 pm

1 stop17h 55m

$503

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston 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

Prices

Airlines

What is the cheapest month to fly to San Sebastian?

The month of November is, on average, the cheapest month to fly to San Sebastian from Boston, with most prices found around $517. If you are unable to visit San Sebastian during the month of November, then departing from Boston during the month September is also very affordable. Most momondo users find prices during this month for around $572.

When to book flights from Boston to San Sebastian

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

Estimated round-trip price

Cheap Boston to San Sebastian (BOS to EAS) flight deals and tips

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

Fastest flight time	9h 40m
Direct flights	None

The fastest flight from Boston to San Sebastian takes 9h 40m

There are no direct flights from Boston to San Sebastian. There are no popular flight routes from Boston to San Sebastian.

Search flight deals

How far is Boston Logan Intl to San Sebastián by plane?
The straight-line distance from Boston Logan Intl to San Sebastián is 3393.2 mi. Flights usually cover this in 9h 40m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Boston Logan Intl Airport to San Sebastián Airport?
Prices for flights from Boston Logan Intl Airport to San Sebastián Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Boston Logan Intl Airport to San Sebastián Airport?
As of January 2026, there are 2 operators available to choose from for flights from Boston Logan Intl Airport to San Sebastián Airport.
How old do you have to be to fly from Boston Logan Intl Airport to San Sebastián Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl 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.
What is the most popular airline from Boston to San Sebastian?
momondo data reveals that the most frequently booked airline on the route from Boston to San Sebastian is Iberia, representing 68% of all bookings. The subsequent popular airline is American Airlines at 32%.

Best airlines flying from Boston to San Sebastian

Compare and see reviews for airlines that fly from Boston to San Sebastian with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $450	Free Cancellation	Rating 7.2 11,124 reviews		Search American Airlines flights
Iberia	PriceFrom $487	Free Cancellation	Rating 7.0 3,086 reviews		Search Iberia flights

Irun

Hondarribia

Why use momondo?

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

Finding the right flight to San Sebastian from Boston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Sebastian quick and easy, saving you time and money.

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

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

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

Once all potential Boston 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 Boston to San Sebastian right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Boston to San Sebastian flights. All you need is a valid email address and we will do the rest; it is that quick and easy.