Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Massachusetts to San Sebastian from $537

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to San Sebastian departing on 11/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Massachusetts to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
11:56 am - 8:40 amBOS-EAS
14h 44m2 stops
Iberia Logo
1:40 pm - 10:59 pmEAS-BOS
15h 19m2 stops
$537Iberia
Find Deal
Tue, Nov 18 - Tue, Nov 25
Multiple Airlines Logo
4:50 pm - 8:40 amBOS-EAS
9h 50m1 stop
Multiple Airlines Logo
9:30 pm - 7:45 pmEAS-BOS
28h 15m2 stops
$538Multiple Airlines
Find Deal
Tue, Nov 18 - Tue, Nov 25
Iberia Logo
5:45 pm - 8:40 amBOS-EAS
9h 55m1 stop
Iberia Logo
9:30 pm - 8:50 pmEAS-BOS
28h 20m1 stop
$556Iberia
Find Deal
Sun, Mar 15 - Sun, Mar 22
Iberia Logo
4:45 pm - 1:00 pmBOS-EAS
14h 15m1 stop
Iberia Logo
1:40 pm - 3:15 pmEAS-BOS
31h 35m1 stop
$559Iberia
Find Deal
Thu, Nov 27 - Sun, Dec 7
Iberia Logo
4:45 pm - 1:00 pmBOS-EAS
14h 15m1 stop
Iberia Logo
9:20 am - 8:55 pmEAS-BOS
17h 35m2 stops
$564Iberia
Find Deal
Thu, Nov 27 - Tue, Dec 2
Iberia Logo
4:45 pm - 1:00 pmBOS-EAS
14h 15m1 stop
Iberia Logo
9:30 pm - 3:47 pmEAS-BOS
24h 17m2 stops
$569Iberia
Find Deal
Thu, Nov 27 - Sun, Dec 7
Multiple Airlines Logo
4:45 pm - 8:40 amBOS-EAS
9h 55m1 stop
Multiple Airlines Logo
9:30 pm - 2:20 pmEAS-BOS
46h 50m2 stops
$573Multiple Airlines
Find Deal
Thu, Nov 27 - Sun, Dec 7
American Airlines Logo
4:50 pm - 8:40 amBOS-EAS
9h 50m1 stop
American Airlines Logo
9:30 pm - 8:22 pmEAS-BOS
28h 52m2 stops
$669American Airlines
Find Deal
Tue, Nov 25 - Wed, Dec 3
American Airlines Logo
4:50 pm - 8:40 amBOS-EAS
9h 50m1 stop
American Airlines Logo
9:20 am - 8:33 pmEAS-BOS
17h 13m2 stops
$672American Airlines
Find Deal
Tue, Nov 25 - Thu, Dec 4
American Airlines Logo
6:30 am - 8:40 amBOS-EAS
20h 10m2 stops
American Airlines Logo
9:30 pm - 10:48 pmEAS-BOS
31h 18m2 stops
$680American Airlines
Find Deal
Mon, Nov 24 - Wed, Dec 3

Iberia flights from Massachusetts to San Sebastian

Our best Iberia deals on Massachusetts to San Sebastian flight tickets
Iberia
Nov 18
BOS11:56 amBoston Logan Intl
14h 44m
2 stops
EAS8:40 amSan Sebastián
Nov 25
EAS1:40 pmSan Sebastián
15h 19m
2 stops
BOS10:59 pmBoston Logan Intl
$537
Find similar
Iberia
Mar 15
BOS5:45 pmBoston Logan Intl
9h 55m
1 stop
EAS8:40 amSan Sebastián
Mar 22
EAS9:30 pmSan Sebastián
28h 20m
1 stop
BOS8:50 pmBoston Logan Intl
$556
Find similar
Iberia
Nov 27
BOS4:45 pmBoston Logan Intl
14h 15m
1 stop
EAS1:00 pmSan Sebastián
Dec 7
EAS1:40 pmSan Sebastián
31h 35m
1 stop
BOS3:15 pmBoston Logan Intl
$559
Find similar

American Airlines flights from Massachusetts to San Sebastian

Our best American Airlines deals on Massachusetts to San Sebastian flight tickets
American Airlines
Nov 25
BOS4:50 pmBoston Logan Intl
9h 50m
1 stop
EAS8:40 amSan Sebastián
Dec 3
EAS9:30 pmSan Sebastián
28h 52m
2 stops
BOS8:22 pmBoston Logan Intl
$669
Find similar
American Airlines
Nov 25
BOS4:50 pmBoston Logan Intl
9h 50m
1 stop
EAS8:40 amSan Sebastián
Dec 4
EAS9:20 amSan Sebastián
17h 13m
2 stops
BOS8:33 pmBoston Logan Intl
$672
Find similar
American Airlines
Nov 24
BOS6:30 amBoston Logan Intl
20h 10m
2 stops
EAS8:40 amSan Sebastián
Dec 3
EAS9:30 pmSan Sebastián
31h 18m
2 stops
BOS10:48 pmBoston Logan Intl
$680
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Massachusetts 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, momondo users made 832,500 searches. Data last updated October 5, 2025.
Use the filters below to find and compare flights from Massachusetts to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Tue 11/18

11:56 am-8:40 am

2 stops14h 44m

San Sebastián

Tue 11/25

1:40 pm-10:59 pm

2 stops15h 19m

$537

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Tue 11/18

4:50 pm-8:40 am

1 stop9h 50m

San Sebastián

Tue 11/25

9:30 pm-7:45 pm

2 stops28h 15m

$538

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Sun 3/15

5:45 pm-8:40 am

1 stop9h 55m

San Sebastián

Sun 3/22

9:30 pm-8:50 pm

1 stop28h 20m

$556

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Thu 11/27

4:45 pm-1:00 pm

1 stop14h 15m

San Sebastián

Sun 12/7

1:40 pm-3:15 pm

1 stop31h 35m

$559

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Thu 11/27

4:45 pm-1:00 pm

1 stop14h 15m

San Sebastián

Tue 12/2

9:20 am-8:55 pm

2 stops17h 35m

$564

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Thu 11/27

4:45 pm-1:00 pm

1 stop14h 15m

San Sebastián

Sun 12/7

9:30 pm-3:47 pm

2 stops24h 17m

$569

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Thu 11/27

4:45 pm-8:40 am

1 stop9h 55m

San Sebastián

Sun 12/7

9:30 pm-2:20 pm

2 stops46h 50m

$573

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Tue 11/25

4:50 pm-8:40 am

1 stop9h 50m

San Sebastián

Wed 12/3

9:30 pm-8:22 pm

2 stops28h 52m

$669

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Tue 11/25

4:50 pm-8:40 am

1 stop9h 50m

San Sebastián

Thu 12/4

9:20 am-8:33 pm

2 stops17h 13m

$672

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Mon 11/24

6:30 am-8:40 am

2 stops20h 10m

San Sebastián

Wed 12/3

9:30 pm-10:48 pm

2 stops31h 18m

$680

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

See travel insights to San Sebastian from

How to get the cheapest flight ticket from Massachusetts to San Sebastian

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to San Sebastian?

On average, the least expensive day to fly to San Sebastian from Massachusetts is on a Thursday. momondo users have found tickets for Thursday departures for as low as $649. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Massachusetts to San Sebastian for around $1,316.

What is the cheapest time of day to depart on your flight to San Sebastian?

Flying to San Sebastian from Massachusetts in the morning is the least expensive time of day to depart. momondo users have found prices as low as $822 when looking at flights departing in the morning. Flights to San Sebastian are more costly in the evening, with an average ticket price of $986. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Massachusetts to San Sebastian flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Massachusetts to San Sebastian

Direct flights

None
There are no direct flights from Massachusetts to San Sebastian. There are no popular flight routes from Massachusetts to San Sebastian.
Search flight deals

  • When did momondo last update prices for flights from Massachusetts to San Sebastián Airport?

    Prices for flights from Massachusetts to San Sebastián Airport refresh daily.

  • How many operators does momondo search for flights from Massachusetts to San Sebastián Airport?

  • How old do you have to be to fly from Massachusetts to San Sebastián Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Massachusetts to San Sebastián Airport.

  • What documentation or ID do you need to fly to San Sebastián Airport?

    The travel and health documents required for your trip to San Sebastián Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Sebastián Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Massachusetts to San Sebastian

Compare and see reviews for airlines that fly from Massachusetts to San Sebastian with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $450Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $522Free CancellationRating
7.0
2,972 reviews
Search Iberia flights

Traveling to a place near San Sebastian?

Book flights to San Sebastian if you plan to visit one of these locations
Irun
Hondarribia

Why use momondo?

Why should I use momondo to find a flight deal from Massachusetts to San Sebastian?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Massachusetts to San Sebastian. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Massachusetts to San Sebastian with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Sebastian from Massachusetts with this policy.

How can momondo help me find flights from Massachusetts to San Sebastian?

Once you have performed a search for Massachusetts to San Sebastian flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Massachusetts to San Sebastian right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Massachusetts to San Sebastian flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your San Sebastian trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 11/4
Tue 11/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Spain

Airports servicing Basque Country

Bilbao Airport