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$390+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
EAS — BOS
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$763
(Expedia)

One-way from

$390
(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 July 30, 2025.

This Expedia deal was found by Cheapflights users on 7/29. 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.
Fri 9/129:30 pmEAS - BOS
1 stop23h 30mIberia
Fri 9/194:30 pmBOS - EAS
1 stop10h 10mIberia
Deal found 7/29$763
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Fri 9/1211:40 amEAS - BOS
2 stops14h 25mMultiple Airlines
Fri 9/192:53 pmBOS - EAS
3 stops35h 57mMultiple Airlines
Deal found 7/29$888

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 July 30, 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

Fri 9/12

9:30 pm-3:00 pm

1 stop23h 30m

Boston Logan Intl

Fri 9/19

4:30 pm-8:40 am

1 stop10h 10m

$763

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

Fri 9/12

11:40 am-8:05 pm

2 stops14h 25m

Boston Logan Intl

Fri 9/19

2:53 pm-8:50 am

3 stops35h 57m

$888

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

Tue 9/23

8:10 pm-8:05 pm

2 stops29h 55m

$390

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

Thu 9/25

9:00 am-9:15 pm

1 stop18h 15m

$451

San SebastianBoston

EAS - BOS

EASBOS

San Sebastián

Sun 9/7

5:55 pm-9:15 pm

1 stop33h 20m

$672

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated July 30, 2025.
See what other customers who have flown with Vueling and Iberia from San Sebastian to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Vueling
7.1
Good
1,176 reviews

Crew

7.7

Boarding

7.1

Comfort

6.8

Overall

7.1

Entertainment

5.8

Food

6.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2024

BCN - DUB

My tv was not working and I had to switch seats 3 times. Other than that excellent experience.
Vueling
7.1
Good
1,176 reviews
Vueling
7.1
Good
1,176 reviews

Crew

7.7

Boarding

7.1

Comfort

6.8

Overall

7.1

Entertainment

5.8

Food

6.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2024

BCN - DUB

My tv was not working and I had to switch seats 3 times. Other than that excellent experience.
Iberia
7.0
Good
2,859 reviews
Vueling
7.1
Good
1,176 reviews

Crew

7.7

Boarding

7.1

Comfort

6.8

Overall

7.1

Entertainment

5.8

Food

6.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2024

BCN - DUB

My tv was not working and I had to switch seats 3 times. Other than that excellent experience.

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.

  • What is the cheapest airline to fly from San Sebastian to Boston round-trip?

    Currently priced at $763, Iberia will fly you from San Sebastian to Boston and back. In addition to Iberia, many other airlines offer competitively priced options for your trip.

  • 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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