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$461+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
EAS — BOS
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap 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 septiembre 11, 2025.

Round-trip from

$746
(Iberia)

One-way from

$461
(Kiwi.com)
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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Find 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 septiembre 11, 2025.

This Iberia deal was found by Cheapflights users on 9/11. 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.
vie. 10/171:40 pmEAS - BOS
2 stops14h 39mIberia
vie. 11/1411:56 amBOS - EAS
2 stops19h 04mIberia
Deal found 9/11$746
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/269:05 amEAS - BOS
2 stops35h 25mMultiple Airlines
mar. 9/306:00 amBOS - EAS
2 stops29h 20mMultiple Airlines
Deal found 9/10$818
This Iberia deal was found by Cheapflights users on 9/10. 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.
vie. 9/269:05 amEAS - BOS
2 stops32h 10mIberia
mar. 9/3011:00 pmBOS - EAS
1 stop27h 25mIberia
Deal found 9/10$845

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 septiembre 11, 2025.
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

vie. 10/17

1:40 pm-10:19 pm

2 stops14h 39m

Boston Logan Intl

vie. 11/14

11:56 am-1:00 pm

2 stops19h 04m

$746

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

vie. 9/26

9:05 am-2:30 pm

2 stops35h 25m

Boston Logan Intl

mar. 9/30

6:00 am-5:20 pm

2 stops29h 20m

$818

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

vie. 9/26

9:05 am-11:15 am

2 stops32h 10m

Boston Logan Intl

mar. 9/30

11:00 pm-8:25 am

1 stop27h 25m

$845

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

jue. 9/18

11:40 am-1:48 pm

3 stops56h 08m

$461

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

jue. 9/18

9:00 am-9:15 pm

1 stop18h 15m

$490

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

sáb. 9/27

8:30 pm-1:48 pm

3 stops47h 18m

$624

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

sáb. 9/27

9:30 pm-7:35 pm

1 stop28h 05m

$948

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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, January is the cheapest month in which you can book a flight from San Sebastian to Boston (average of $218). Flying from San Sebastian to Boston in July is currently the most expensive (average of $311). 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 14h 39m. 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, January is the cheapest month in which you can book a flight from San Sebastian to Boston (average of $218). Flying from San Sebastian to Boston in July is currently the most expensive (average of $311). 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?

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