HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Sebastian

$578+ Cheap flights from Boston (BOS) to San Sebastian (EAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — EAS
dic. 23 — dic. 301
lun. 12/23
lun. 12/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to San Sebastian with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 diciembre 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$652
(Priceline)

Popular in

June

Cheapest in

April
Provider with most accurate pricing for Boston Logan Intl-San Sebastián flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-San Sebastián flights.
Search Deals
From Boston Logan Intl to San Sebastián
Search Deals
High demand for flights, 13% potential price rise
Search Deals
Best time to find cheap flights, 3% potential price drop
Search Deals

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 diciembre 18, 2024.

This Iberia deal was found by Cheapflights users on 12/16. 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.
lun. 12/304:50 pmBOS - EAS
1 stop9h 50mIberia
jue. 1/21:40 pmEAS - BOS
2 stops14h 00mIberia
Deal found 12/16$1,972
This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
mar. 12/3111:25 pmBOS - EAS
1 stop26h 10mMultiple Airlines
vie. 1/39:20 amEAS - BOS
2 stops31h 15mMultiple Airlines
Deal found 12/17$1,991
This American Airlines deal was found by Cheapflights users on 12/17. 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.
mar. 12/3111:53 amBOS - EAS
2 stops14h 47mAmerican Airlines
vie. 1/39:20 amEAS - BOS
2 stops17h 19mAmerican Airlines
Deal found 12/17$2,413

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 diciembre 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

mié. 4/2

4:30 pm-8:40 am

1 stop10h 10m

San Sebastián

mar. 4/8

9:20 am-3:00 pm

1 stop11h 40m

$578

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

mié. 4/2

9:04 am-8:40 am

2 stops17h 36m

San Sebastián

mar. 4/8

1:40 pm-10:35 pm

2 stops14h 55m

$627

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

jue. 5/22

10:50 pm-8:25 am

1 stop27h 35m

San Sebastián

jue. 5/29

9:00 am-9:05 pm

1 stop18h 05m

$833

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

jue. 1/16

6:10 pm-8:40 am

3 stops32h 30m

San Sebastián

jue. 1/23

8:10 am-2:30 pm

2 stops36h 20m

$850

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

mar. 4/1

12:15 am-8:40 am

2 stops26h 25m

San Sebastián

mar. 4/8

9:30 pm-2:25 pm

2 stops22h 55m

$1,363

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 diciembre 18, 2024.

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 diciembre 18, 2024.
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Entertainment

7.0

Boarding

7.6

Comfort

7.2

Food

6.5

Overall

7.2

Reviews

1 / 10

Need to mentor not all but few staff on racism and ettiqutte. Because of one person all other get bad rating. One male steward of age was clearly ignoring his services to us, very bad. Hostesses serving our area were excellent.

American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Entertainment

7.0

Boarding

7.6

Comfort

7.2

Food

6.5

Overall

7.2

Reviews

1 / 10

Need to mentor not all but few staff on racism and ettiqutte. Because of one person all other get bad rating. One male steward of age was clearly ignoring his services to us, very bad. Hostesses serving our area were excellent.

Iberia
7.0
Good
2,656 reviews
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Entertainment

7.0

Boarding

7.6

Comfort

7.2

Food

6.5

Overall

7.2

Reviews

1 / 10

Need to mentor not all but few staff on racism and ettiqutte. Because of one person all other get bad rating. One male steward of age was clearly ignoring his services to us, very bad. Hostesses serving our area were excellent.

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 $652, 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. Check Cheapflights for deals on American Airlines for as low as $672. Iberia is priced at 29% 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to San Sebastian

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Bilbao flights
Hartford to Bilbao flights

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 diciembre 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$602Average$984FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$603Average$781FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.