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San Sebastian

$280+ Cheap flights from Boston (BOS) to San Sebastian (EAS)

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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — EAS
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
1 adult, Economy
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1. Tell us where you want to go
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Cheap flight deals from Boston to San Sebastian

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to San Sebastian (EAS). 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 March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$546
(Kiwi.com)

Popular in

February

Cheapest in

April

Average price

$768
Provider with most accurate pricing for Boston Logan Intl-San Sebastián flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-San Sebastián flights.
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From Boston Logan Intl to San Sebastián
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Highest demand for flights based on searches. 15% potential increase in price ($171 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($85 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Boston to San Sebastian

Cheapest flights from Boston to San Sebastian
Explore the most affordable flight options available from Boston to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/710:50 pmBOS - EAS
1 stop12h 30mVueling
Wed 4/235:55 pmEAS - BOS
1 stop33h 10mVueling
Deal found 3/2$546
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/710:50 pmBOS - EAS
1 stop12h 30mMultiple Airlines
Wed 4/239:30 pmEAS - BOS
2 stops29h 35mMultiple Airlines
Deal found 3/2$588
This American Airlines deal was found by Cheapflights users on 3/2. 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.
Wed 4/21:10 pmBOS - EAS
2 stops13h 30mAmerican Airlines
Tue 4/89:20 amEAS - BOS
2 stops15h 28mAmerican Airlines
Deal found 3/2$692
This Iberia deal was found by Cheapflights users on 3/2. 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.
Wed 4/210:50 pmBOS - EAS
1 stop12h 30mIberia
Tue 4/81:30 pmEAS - BOS
1 stop13h 35mIberia
Deal found 3/2$753
This British Airways deal was found by Cheapflights users on 3/2. 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.
Wed 7/29:55 pmBOS - EAS
1 stop31h 55mBritish Airways
Fri 7/1112:35 pmEAS - BOS
1 stop16h 05mBritish Airways
Deal found 3/2$919

Find flights from Boston to San Sebastian within your budget

Customize your flight search to find flights from Boston 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, Cheapflights users made 2,558,603 searches. Data last updated March 3, 2025.

Fly from

Boston

Fly to

San Sebastian

Route

Depart

Return

Price

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Mon 4/7

10:50 pm-5:20 pm

1 stop12h 30m

San Sebastián

Wed 4/23

5:55 pm-9:05 pm

1 stop33h 10m

$546

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Mon 4/7

10:50 pm-5:20 pm

1 stop12h 30m

San Sebastián

Wed 4/23

9:30 pm-9:05 pm

2 stops29h 35m

$588

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Wed 4/2

1:10 pm-8:40 am

2 stops13h 30m

San Sebastián

Tue 4/8

9:30 pm-3:00 pm

1 stop23h 30m

$692

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Thu 7/3

7:45 am-8:40 am

2 stops18h 55m

San Sebastián

Fri 7/18

9:20 am-7:50 pm

1 stop16h 30m

$873

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Wed 7/2

9:55 pm-11:50 am

1 stop31h 55m

San Sebastián

Fri 7/11

12:35 pm-10:40 pm

1 stop16h 05m

$919

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Thu 8/14

10:25 pm-8:40 am

2 stops28h 15m

$280

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Wed 4/2

10:50 pm-8:30 am

1 stop27h 40m

$354

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Compare providers for flights from Boston to San Sebastian

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to San Sebastian in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-San Sebastian flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-San Sebastian flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-San Sebastian flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-San Sebastian 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 Boston-San Sebastian 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 Boston to San Sebastian

Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Boston 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.

Travel insights for flights from Boston to San Sebastian

Get recent, data-driven insights about flights from Boston to San Sebastian including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from BOS to EAS?

Find hourly flight availability from Boston to San Sebastian. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 3, 2025.

When flying from Boston to San Sebastian, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 17% versus a flight in the afternoon.

Reviews of airlines servicing San Sebastian

Get insights into the airlines that provide service to San Sebastian. 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 San Sebastian. Reviews last updated March 3, 2025.
Vueling
7.1
Good
1,153 reviews

Entertainment

5.8

Comfort

6.8

Boarding

7.1

Crew

7.7

Food

6.1

Overall

7.1

Reviews

1 / 20

4.0
Okay

Nadia,May 2024

FCO - BCN

The overhead compartment from my seat broke, and my bag got sent 10 seats over. It was an inconvenience

Vueling
7.1
Good
1,153 reviews
Vueling
7.1
Good
1,153 reviews

Entertainment

5.8

Comfort

6.8

Boarding

7.1

Crew

7.7

Food

6.1

Overall

7.1

Reviews

1 / 20

4.0
Okay

Nadia,May 2024

FCO - BCN

The overhead compartment from my seat broke, and my bag got sent 10 seats over. It was an inconvenience

Iberia
7.0
Good
2,640 reviews
Vueling
7.1
Good
1,153 reviews

Entertainment

5.8

Comfort

6.8

Boarding

7.1

Crew

7.7

Food

6.1

Overall

7.1

Reviews

1 / 20

4.0
Okay

Nadia,May 2024

FCO - BCN

The overhead compartment from my seat broke, and my bag got sent 10 seats over. It was an inconvenience

Related info for your journey

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

  • What are the cheapest airlines flying from Boston to San Sebastian round-trip?

    Currently priced at $546, Vueling will fly you from Boston to San Sebastian and back. In addition to Vueling, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Iberia for as low as $692. Vueling is priced at 43% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

See more FAQs

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Alternative routes for Boston to San Sebastian

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Boston to San Sebastian

Discover the top 2 airlines that operate flights from Boston to San Sebastian. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$603Average$781FlexibilityNo cancel feeOn-time71%
IberiaCheapest$639Average$900FlexibilityNo cancel feeOn-time77%
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