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San Sebastian

$431+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — EAS
Apr 8 — Apr 151
Tue 4/8
Tue 4/15
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 April 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$627
(Expedia)

Popular in

February

Cheapest in

April

Average price

$689
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. 17% potential increase in price ($204 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($84 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 3, 2025.

This Booking.com deal was found by Cheapflights users on 4/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/411:00 pmBOS - EAS
1 stop27h 20mVueling
Sat 9/138:55 amEAS - BOS
1 stop18h 20mVueling
Deal found 4/2$653
This Iberia deal was found by Cheapflights users on 4/2. 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.
Mon 7/284:30 pmBOS - EAS
1 stop10h 10mIberia
Tue 8/59:30 pmEAS - BOS
1 stop28h 20mIberia
Deal found 4/2$694
This American Airlines deal was found by Cheapflights users on 4/3. 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.
Sat 10/1810:38 amBOS - EAS
2 stops16h 02mAmerican Airlines
Sat 10/259:20 amEAS - BOS
1 stop11h 40mAmerican Airlines
Deal found 4/3$804
This Kiwi.com deal was found by Cheapflights users on 4/2. 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.
Thu 9/411:00 pmBOS - EAS
1 stop12h 20mMultiple Airlines
Sat 9/139:20 amEAS - BOS
2 stops17h 55mMultiple Airlines
Deal found 4/2$814

Cheapflights Fare Finder

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 April 3, 2025.
Use the filters below to find and compare flights from Boston to San Sebastian that are best for you.

Fly from

Boston

Fly to

San Sebastian

Route

Depart

Return

Price

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Thu 9/4

11:00 pm-8:20 am

1 stop27h 20m

San Sebastián

Sat 9/13

8:55 am-9:15 pm

1 stop18h 20m

$653

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Mon 7/28

4:30 pm-8:40 am

1 stop10h 10m

San Sebastián

Tue 8/5

9:30 pm-7:50 pm

1 stop28h 20m

$694

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Thu 9/4

11:00 pm-5:20 pm

1 stop12h 20m

San Sebastián

Sat 9/13

9:20 am-9:15 pm

2 stops17h 55m

$814

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Wed 6/4

1:20 pm-8:40 am

2 stops13h 20m

San Sebastián

Sun 6/8

9:20 am-7:50 pm

1 stop16h 30m

$819

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Tue 8/12

11:00 pm-8:30 am

1 stop27h 30m

$431

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Tue 8/12

7:00 am-8:40 am

2 stops19h 40m

$536

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/3

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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice 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.

Cheapflights Insights

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

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 April 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 April 3, 2025.
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Overall

7.2

Food

6.5

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

MYR - CLT

This flight was impacted by a nearly 4, yes 4 hour delay. They replaced a 777 with another one and it had to be cleaned and catered before we could depart. Great crew did it without complaint.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Overall

7.2

Food

6.5

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

MYR - CLT

This flight was impacted by a nearly 4, yes 4 hour delay. They replaced a 777 with another one and it had to be cleaned and catered before we could depart. Great crew did it without complaint.
Vueling
7.1
Good
1,149 reviews
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Overall

7.2

Food

6.5

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

MYR - CLT

This flight was impacted by a nearly 4, yes 4 hour delay. They replaced a 777 with another one and it had to be cleaned and catered before we could depart. Great crew did it without complaint.
Iberia
7.0
Good
2,657 reviews
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Overall

7.2

Food

6.5

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

MYR - CLT

This flight was impacted by a nearly 4, yes 4 hour delay. They replaced a 777 with another one and it had to be cleaned and catered before we could depart. Great crew did it without complaint.

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 $627, Iberia will fly you from Boston to San Sebastian and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Vueling and American Airlines - these airlines can fly you to your destination from $720 and $739, respectively. Iberia is priced at 35% 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.

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Alternative routes for Boston to San Sebastian

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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 April 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$613Average$836FlexibilityNo cancel feeOn-time71%
IberiaCheapest$639Average$883FlexibilityNo cancel feeOn-time77%

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