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$466+ Cheap flights from San Sebastian (EAS) to Boston (BOS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/13. Fares are subject to change and may not be available on all flights or dates of travel.
EAS — BOS
fev 27 — mar 61
sex 2/27
sex 3/6
1 adult, Economy
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Cheap flight deals from San Sebastian to Boston

Cheapest flights from San Sebastian to Boston
Explore the most affordable flight options available from San Sebastian to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janeiro 28, 2026.

This Expedia deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 2/119:20 am
EAS
-
BOS
1 stop16h 30m
Iberia
dom 2/153:49 pm
BOS
-
EAS
2 stops34h 51m
Iberia
Deal found 1/26$703
This Iberia deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 5/139:20 am
EAS
-
BOS
1 stop12h 50m
Iberia
dom 5/179:55 pm
BOS
-
EAS
2 stops28h 25m
Iberia
Deal found 1/25$830
This Expedia deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 8/41:40 pm
EAS
-
BOS
1 stop12h 10m
Iberia
qui 8/279:20 pm
BOS
-
EAS
1 stop17h 30m
Iberia
Deal found 1/27$897
This British Airways deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 8/35:25 pm
EAS
-
BOS
1 stop29h 30m
British Airways
qui 8/277:35 pm
BOS
-
EAS
1 stop13h 05m
British Airways
Deal found 1/27$990
This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 5/131:40 pm
EAS
-
BOS
2 stops35h 08m
American Airlines
dom 5/173:17 pm
BOS
-
EAS
2 stops35h 23m
American Airlines
Deal found 1/26$998
This British Airways deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 8/47:25 pm
EAS
-
BOS
2 stops27h 35m
British Airways
sáb 8/297:35 pm
BOS
-
EAS
1 stop14h 35m
British Airways
Deal found 1/27$1,007
This British Airways deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 8/35:25 pm
EAS
-
BOS
1 stop29h 30m
British Airways
dom 8/309:55 pm
BOS
-
EAS
1 stop12h 45m
British Airways
Deal found 1/27$1,008
This Iberia deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 8/45:55 pm
EAS
-
BOS
1 stop33h 20m
Iberia
qua 8/2611:00 pm
BOS
-
EAS
1 stop27h 20m
Iberia
Deal found 1/27$1,012

Find flight deals from San Sebastian to Boston

Discover tips and strategies to find the most affordable flight options for your journey from San Sebastian (EAS) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated janeiro 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$703
(Expedia)

One-way from

$466
(Kiwi.com)
Provider with most accurate pricing for San Sebastián-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Sebastián-Boston Logan Intl flights.
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From San Sebastián to Boston Logan Intl
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One-way flight from San Sebastián to Boston Logan Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Sebastian to Boston 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, Cheapflights users made 2,558,603 searches. Data last updated janeiro 28, 2026.
Use the filters below to find and compare flights from San Sebastian to Boston that are best for you.

Fly from

San Sebastian

Fly to

Boston

Route

Depart

Return

Price

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

qua 2/11

9:20 am-7:50 pm

1 stop16h 30m

Boston Logan Intl

dom 2/15

3:49 pm-8:40 am

2 stops34h 51m

$703

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

qua 5/13

9:20 am-4:10 pm

1 stop12h 50m

Boston Logan Intl

dom 5/17

9:55 pm-8:20 am

2 stops28h 25m

$830

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

qua 5/13

1:40 pm-6:48 pm

2 stops35h 08m

Boston Logan Intl

dom 5/17

3:17 pm-8:40 am

2 stops35h 23m

$998

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

qua 2/11

1:40 pm-10:56 pm

2 stops15h 16m

Boston Logan Intl

dom 2/15

5:15 pm-1:00 pm

2 stops13h 45m

$1,007

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

sáb 6/13

5:55 pm-4:10 pm

3 stops52h 15m

$466

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

sáb 6/13

9:20 am-4:10 pm

1 stop12h 50m

$483

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

  • Most accurate provider: When it comes to deals on San Sebastian-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Sebastian-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Sebastian-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Sebastian-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Sebastian-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Sebastian to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from San Sebastian with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Sebastian to Boston

What is the cheapest month to book a flight from San Sebastian to Boston?

Currently, September is the cheapest month in which you can book a flight from San Sebastian to Boston (average of $227). Flying from San Sebastian to Boston in July is currently the most expensive (average of $638). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from San Sebastian to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Sebastian to Boston?

    Airlines like Iberia fly from San Sebastian to Boston in about 16h 30m. The time it takes to get you to your destination can typically vary by up to . The distance from San Sebastian to Boston is about 3398 mi.

  • Can I find deals for flights from San Sebastian to Boston that include hotel bookings?

    Yes. In addition to deals on San Sebastian to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Sebastian to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Sebastian to Boston.

  • Can I find deals for business class flights from San Sebastian to Boston?

    Yes. Cheapflights offers flight deals from San Sebastian to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Sebastian to Boston?

    Currently, September is the cheapest month in which you can book a flight from San Sebastian to Boston (average of $227). Flying from San Sebastian to Boston in July is currently the most expensive (average of $638). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Medford
Cambridge
Hampton Beach
Watertown
Seekonk
Brockton
Warwick
Seabrook
Cranston
Lincoln
Smithfield
Peabody
Quincy
York Beach
Londonderry
Swansea
Old Orchard Beach
Waltham
Lowell
Chelsea

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