How does KAYAK find such low prices on flights from Massachusetts to San Sebastian?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to San Sebastian. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to San Sebastian?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Sebastian from Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Massachusetts to San Sebastian?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Sebastian with an airline and back to Massachusetts with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to San Sebastian?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Sebastian from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$367 CHEAP FLIGHTS from Massachusetts to San Sebastian

EAS

KAYAK searches hundreds of travel sites at once for deals on flights to San Sebastian

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$447

Overall average: $826

Multiple Airlines

Sun 1/11Tue 1/27

BOS - EAS • 1 stop

Cheapest one-way

$367

Multiple Airlines

Fri 3/27

BOS - EAS • 2 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to San Sebastian!

Flight Deals

Cheap Flights from Massachusetts to San Sebastian

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Massachusetts to San Sebastian that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Massachusetts to San Sebastian

Sun, Jan 11 - Tue, Jan 27

9:20 pm - 8:50 pm

BOS

EAS

17h 30m1 stop

9:20 am - 3:15 pm

EAS

BOS

11h 55m1 stop

$447Multiple Airlines

Sun, Jan 11 - Tue, Jan 27

12:16 pm - 8:40 am

BOS

EAS

14h 24m2 stops

1:40 pm - 10:56 pm

EAS

BOS

15h 16m2 stops

$453American Airlines

Sun, Feb 1 - Sun, Feb 8

4:45 pm - 8:40 am

BOS

EAS

9h 55m1 stop

9:20 am - 3:15 pm

EAS

BOS

11h 55m1 stop

$486Iberia

Sun, Feb 1 - Sun, Feb 8

12:16 pm - 8:40 am

BOS

EAS

14h 24m2 stops

1:40 pm - 7:50 pm

EAS

BOS

12h 10m1 stop

$502American Airlines

Sun, Feb 1 - Sun, Feb 8

6:00 am - 8:40 am

BOS

EAS

20h 40m2 stops

9:20 am - 7:33 pm

EAS

BOS

16h 13m2 stops

$512American Airlines

Wed, Jan 28 - Sun, Feb 1

9:20 pm - 8:50 pm

BOS

EAS

17h 30m1 stop

1:40 pm - 7:50 pm

EAS

BOS

12h 10m1 stop

$726Iberia

Wed, Jan 28 - Sun, Feb 1

5:10 pm - 1:00 pm

BOS

EAS

13h 50m2 stops

1:40 pm - 7:50 pm

EAS

BOS

12h 10m1 stop

$730Iberia

Wed, Jan 28 - Sun, Feb 1

5:10 pm - 8:50 pm

BOS

EAS

21h 40m2 stops

9:20 am - 7:33 pm

EAS

BOS

16h 13m2 stops

$750Iberia

Sat, Feb 28 - Sat, Mar 7

4:45 pm - 8:40 am

BOS

EAS

9h 55m1 stop

1:40 pm - 10:22 pm

EAS

BOS

14h 42m2 stops

$752Multiple Airlines

Sat, Feb 28 - Sat, Mar 7

5:49 pm - 1:00 pm

BOS

EAS

13h 11m2 stops

1:40 pm - 10:22 pm

EAS

BOS

14h 42m2 stops

$761Multiple Airlines

Useful Info

Low season	January
High season	June
Cheapest flight	$367

Best time to beat the crowds but there is an average 2% increase in price.

Most popular time to fly with an average 32% increase in price.

Flight from Boston to San Sebastian

How does KAYAK find such low prices on flights from Massachusetts to San Sebastian?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to San Sebastian.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to San Sebastian?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Sebastian from Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Massachusetts to San Sebastian?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Sebastian with an airline and back to Massachusetts with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to San Sebastian?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Sebastian from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Irun

Hondarribia

Everything you need to know for your flight to San Sebastian

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in San Sebastian

San Sebastian (EAS)

EAS

$367 Find Cheap Flights from Massachusetts to San Sebastian

KAYAK searches hundreds of travel sites at once for deals on flights to San Sebastian

Everything you should know

Cheap Flights from Massachusetts to San Sebastian

Recent round-trip flight deals from Massachusetts to San Sebastian

Recent one-way flight deals from Massachusetts to San Sebastian

Recent last minute flight deals from Massachusetts to San Sebastian

Good to know

FAQs for booking flights from Massachusetts to San Sebastian

How does KAYAK find such low prices on flights from Massachusetts to San Sebastian?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to San Sebastian.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to San Sebastian?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Sebastian from Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Massachusetts to San Sebastian?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Sebastian with an airline and back to Massachusetts with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to San Sebastian?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Sebastian from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near San Sebastian?

Everything you need to know for your flight to San Sebastian

Information on the airport you'll fly into in San Sebastian

Cabin class types available on flights to Massachusetts

Complete your trip to San Sebastian with a hotel stay or car rental

Find direct flights for San Sebastian

Flights to other popular destinations

Flights from domestic origins to San Sebastian

Choose which airport to fly into in San Sebastian

Find deals for your return flight