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Cheap flights from Boston (BOS) to San Sebastian (EAS) from $400

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 8/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BOS — EAS
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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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 May 16, 2024.

Popular in

March

Cheapest in

October

Average price

$822

Round-trip from

$571
High demand for flights, 45% potential price rise
Search Deals
Best time to find cheap flights, 31% potential price drop
Search Deals
Average for round-trip flights in May 2024
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From Boston Logan Intl to San Sebastián
Search Deals

What is the cheapest day to fly round-trip from Boston to San Sebastian?

Users have found that flying from Boston to San Sebastian on a Friday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from Boston to San Sebastian?

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, October can be a great choice for travel to San Sebastian. Flights to San Sebastian from Boston in October are about $928 on average during October, but can be found for as low as $450.

When is the cheapest time to fly from Boston to San Sebastian (BOS - EAS)?

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 20% versus a flight in the afternoon.

Cheap Iberia flights from Boston to San Sebastian

Explore cheap flight options specifically provided by Iberia for the route between Boston and San Sebastian. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Check out some of the cheapest Iberia flights we've come across from Boston to San Sebastian. Come back soon if you're not finding the exact deal you're looking for.
Wed 6/124:40 pmBOS - EAS
1 stop10h 00mIberia
Wed 6/191:40 pmEAS - BOS
2 stops13h 30mIberia
Deal found 5/15$803
Wed 6/1210:23 amBOS - EAS
2 stops16h 17mIberia
Wed 6/199:20 amEAS - BOS
2 stops17h 50mIberia
Deal found 5/15$849
Wed 5/294:40 pmBOS - EAS
1 stop10h 00mIberia
Wed 6/51:40 pmEAS - BOS
2 stops14h 57mIberia
Deal found 5/15$969
Wed 6/124:40 pmBOS - EAS
1 stop10h 00mIberia
Wed 6/199:20 amEAS - BOS
1 stop11h 45mIberia
Deal found 5/15$1,022
Sun 5/264:40 pmBOS - EAS
1 stop10h 00mIberia
Sat 6/19:30 pmEAS - BOS
2 stops29h 50mIberia
Deal found 5/16$1,501
Sun 5/264:40 pmBOS - EAS
1 stop14h 20mIberia
Sat 6/19:30 pmEAS - BOS
1 stop23h 35mIberia
Deal found 5/16$1,511
Fri 8/210:55 pmBOS - EAS
2 stops15h 55mIberia
Mon 8/51:40 pmEAS - BOS
2 stops13h 30mIberia
Deal found 5/15$1,517
Sun 5/2611:39 amBOS - EAS
2 stops15h 01mIberia
Sat 6/19:30 pmEAS - BOS
2 stops29h 50mIberia
Deal found 5/15$1,562
Sun 5/2611:39 amBOS - EAS
2 stops15h 01mIberia
Sat 6/19:30 pmEAS - BOS
1 stop23h 35mIberia
Deal found 5/15$1,570

Cheap Avianca flights from Boston to San Sebastian

Explore cheap flight options specifically provided by Avianca for the route between Boston and San Sebastian. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
To aid your search, here are some of the cheapest Avianca flights we've found from Boston to San Sebastian. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Tue 6/1112:15 amBOS - EAS
2 stops26h 25mAvianca
Wed 6/199:30 pmEAS - BOS
2 stops46h 55mAvianca
Deal found 5/15$1,981
Sat 5/2512:15 amBOS - EAS
2 stops26h 25mAvianca
Sat 6/19:30 pmEAS - BOS
2 stops22h 55mAvianca
Deal found 5/15$2,328
Sat 5/2512:15 amBOS - EAS
2 stops38h 35mAvianca
Sat 6/19:30 pmEAS - BOS
2 stops22h 55mAvianca
Deal found 5/16$2,395
Thu 8/112:15 amBOS - EAS
2 stops50h 25mAvianca
Mon 8/59:30 pmEAS - BOS
2 stops31h 19mAvianca
Deal found 5/15$3,714
Thu 8/112:15 amBOS - EAS
2 stops50h 25mAvianca
Mon 8/59:30 pmEAS - BOS
2 stops31h 19mAvianca
Deal found 5/15$3,738

Cheap Boston to San Sebastian flights in May & June 2024

Find cheap flight options from Boston to San Sebastian specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
Check out some of the best flight deals from Boston to San Sebastian in 2024. For more flight deals, be sure to check back very soon.
Wed 6/124:40 pmBOS - EAS
1 stop10h 00mIberia
Wed 6/191:40 pmEAS - BOS
2 stops13h 30mIberia
Deal found 5/15$803
Wed 6/1210:23 amBOS - EAS
2 stops16h 17mIberia
Wed 6/199:20 amEAS - BOS
2 stops17h 50mIberia
Deal found 5/15$849
Wed 5/294:40 pmBOS - EAS
1 stop10h 00mIberia
Wed 6/51:40 pmEAS - BOS
2 stops14h 57mIberia
Deal found 5/15$969
Wed 5/291:38 pmBOS - EAS
2 stops13h 02mIberia
Wed 6/51:40 pmEAS - BOS
2 stops14h 57mIberia
Deal found 5/15$973
Wed 6/124:40 pmBOS - EAS
1 stop10h 00mIberia
Wed 6/199:20 amEAS - BOS
1 stop11h 45mIberia
Deal found 5/15$1,022
Tue 5/284:40 pmBOS - EAS
1 stop14h 20mIberia
Tue 6/49:20 amEAS - BOS
1 stop11h 45mIberia
Deal found 5/16$1,059
Tue 5/281:38 pmBOS - EAS
2 stops17h 22mIberia
Tue 6/49:20 amEAS - BOS
1 stop11h 45mIberia
Deal found 5/16$1,063
Tue 5/281:38 pmBOS - EAS
2 stops17h 22mIberia
Tue 6/41:40 pmEAS - BOS
2 stops15h 03mIberia
Deal found 5/16$1,073
Sun 5/264:40 pmBOS - EAS
1 stop10h 00mIberia
Sat 6/19:30 pmEAS - BOS
2 stops29h 50mIberia
Deal found 5/16$1,501

Boston to San Sebastian 2024 flight deals

Discover exclusive flight deals for travel between Boston and San Sebastian in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Check out some of the best flight deals from Boston to San Sebastian in 2024. For more flight deals, be sure to check back very soon.
Thu 10/315:55 pmBOS - EAS
1 stop9h 45mIberia
Sat 11/98:30 amEAS - BOS
1 stop19h 10mIberia
Deal found 5/15$660
Thu 10/315:55 pmBOS - EAS
1 stop14h 05mIberia
Sat 11/99:20 amEAS - BOS
2 stops18h 20mIberia
Deal found 5/15$664
Fri 9/610:55 pmBOS - EAS
1 stop27h 10mMultiple Airlines
Mon 9/169:20 amEAS - BOS
2 stops17h 50mMultiple Airlines
Deal found 5/16$717
Fri 9/610:55 pmBOS - EAS
1 stop27h 10mVueling
Mon 9/161:30 pmEAS - BOS
1 stop13h 40mVueling
Deal found 5/16$728
Thu 10/315:30 pmBOS - EAS
2 stops14h 30mIberia
Sat 11/91:40 pmEAS - BOS
2 stops15h 40mIberia
Deal found 5/16$761
Wed 6/124:40 pmBOS - EAS
1 stop10h 00mIberia
Wed 6/191:40 pmEAS - BOS
2 stops13h 30mIberia
Deal found 5/15$803
Thu 10/315:30 pmBOS - EAS
2 stops14h 30mIberia
Sat 11/91:40 pmEAS - BOS
2 stops15h 40mIberia
Deal found 5/15$808
Wed 6/1210:23 amBOS - EAS
2 stops16h 17mIberia
Wed 6/199:20 amEAS - BOS
2 stops17h 50mIberia
Deal found 5/15$849
Mon 9/94:40 pmBOS - EAS
1 stop10h 00mMultiple Airlines
Mon 9/169:30 pmEAS - BOS
2 stops32h 05mMultiple Airlines
Deal found 5/15$880

Boston to San Sebastian flights leaving soon

Find last-minute flight options from Boston to San Sebastian for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Have a look at some of the flights available from Boston to San Sebastian departing last-minute. Users should be sure to double check the price, date, and time of their last-minute flight.
Sun 5/264:40 pmBOS - EAS
1 stop10h 00mIberia
Sat 6/19:30 pmEAS - BOS
2 stops29h 50mIberia
Deal found 5/16$1,501
Sun 5/264:40 pmBOS - EAS
1 stop14h 20mIberia
Sat 6/19:30 pmEAS - BOS
1 stop23h 35mIberia
Deal found 5/16$1,511
Sun 5/2611:39 amBOS - EAS
2 stops15h 01mIberia
Sat 6/19:30 pmEAS - BOS
2 stops29h 50mIberia
Deal found 5/15$1,562
Sun 5/2611:39 amBOS - EAS
2 stops15h 01mIberia
Sat 6/19:30 pmEAS - BOS
1 stop23h 35mIberia
Deal found 5/15$1,570
Sun 5/264:40 pmBOS - EAS
1 stop22h 10mIberia
Sat 6/19:30 pmEAS - BOS
1 stop23h 35mIberia
Deal found 5/15$1,910
Sat 5/2512:15 amBOS - EAS
2 stops26h 25mAvianca
Sat 6/19:30 pmEAS - BOS
2 stops22h 55mAvianca
Deal found 5/15$2,328
Sat 5/2512:15 amBOS - EAS
2 stops38h 35mAvianca
Sat 6/19:30 pmEAS - BOS
2 stops22h 55mAvianca
Deal found 5/16$2,395

One-way flights to San Sebastian from Boston

Search for one-way flight options from Boston to San Sebastian. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Users traveling one-way from Boston to San Sebastian can select one of these great deals. For those needing a return trip from Boston, there is a search form available above.
Thu 8/811:35 pmBOS - EAS
3 stops50h 30mMultiple Airlines
Deal found 5/15$400
Thu 8/810:55 pmBOS - EAS
1 stop27h 30mVueling
Deal found 5/15$435
Thu 8/810:55 pmBOS - EAS
2 stops15h 55mMultiple Airlines
Deal found 5/15$446
Sat 7/135:45 pmBOS - EAS
2 stops56h 55mIberia
Deal found 5/15$603
Sat 7/1311:35 pmBOS - EAS
3 stops39h 15mMultiple Airlines
Deal found 5/16$646
Sat 7/134:40 pmBOS - EAS
1 stop10h 00mIberia
Deal found 5/16$798
Sat 7/134:40 pmBOS - EAS
1 stop10h 00mAmerican Airlines
Deal found 5/15$810
Wed 7/310:55 pmBOS - EAS
2 stops27h 45mIberia
Deal found 5/15$935
Wed 7/310:55 pmBOS - EAS
1 stop12h 45mVueling
Deal found 5/15$974

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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$803 - $1,981

Route

Depart

Return

Price

Boston Logan IntlSan Sebastián

BOS - EAS

BOSEAS

Boston Logan Intl

Wed 6/12

1 stop10h 00m

San Sebastián

Wed 6/19

2 stops13h 30m

$803

Boston Logan IntlSan Sebastián

BOS - EAS

BOSEAS

Boston Logan Intl

Wed 6/12

2 stops16h 17m

San Sebastián

Wed 6/19

2 stops17h 50m

$849

Boston Logan IntlSan Sebastián

BOS - EAS

BOSEAS

Boston Logan Intl

Wed 5/29

1 stop10h 00m

San Sebastián

Wed 6/5

2 stops14h 57m

$969

Boston Logan IntlSan Sebastián

BOS - EAS

BOSEAS

Boston Logan Intl

Fri 8/2

1 stop10h 00m

San Sebastián

Mon 8/5

1 stop23h 35m

$973

Boston Logan IntlSan Sebastián

BOS - EAS

BOSEAS

Boston Logan Intl

Fri 8/2

1 stop10h 00m

San Sebastián

Mon 8/5

2 stops49h 15m

$985

Boston Logan IntlSan Sebastián

BOS - EAS

BOSEAS

Boston Logan Intl

Wed 6/12

1 stop10h 00m

San Sebastián

Wed 6/19

1 stop11h 45m

$1,022

Boston Logan IntlSan Sebastián

BOS - EAS

BOSEAS

Boston Logan Intl

Fri 8/2

2 stops16h 18m

San Sebastián

Mon 8/5

1 stop31h 25m

$1,118

Boston Logan IntlSan Sebastián

BOS - EAS

BOSEAS

Boston Logan Intl

Fri 8/2

2 stops15h 55m

San Sebastián

Mon 8/5

2 stops13h 30m

$1,517

Boston Logan IntlSan Sebastián

BOS - EAS

BOSEAS

Boston Logan Intl

Tue 6/11

2 stops26h 25m

San Sebastián

Wed 6/19

2 stops46h 55m

$1,981

Flights are sorted by cheapest first

Deals found on 5/15

When is the cheapest time to fly from Boston to San Sebastian?

Use this chart to determine the cheapest time to fly round-trip from Boston to San Sebastian. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Boston to San Sebastian flight should consider departing on Monday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to San Sebastian by month

Plan your trip from Boston to San Sebastian by taking into account the cheapest months to travel. The average price of a one-way flight from Boston to San Sebastian is currently $672 while a round-trip flight costs $1,135. Price data was last updated on May 12, 2024.

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 May 16, 2024.
Read reviews from past customers who have flown Iberia and Avianca from Boston to San Sebastian. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Avianca
7.5
Good
3,765 reviews
Check prices

Food

6.3

Comfort

7.3

Entertainment

6.8

Boarding

7.7

Overall

7.5

Crew

7.9

Reviews

1 / 10

Primero cambiaron mi vuelo, y debí llegar a mi país a las 3pm y llegué a las 11pm. Un desastre, sin entretenimiento en cabina, y sin comida, que había que paga aparte.

Avianca
7.5
Good
3,765 reviews
Avianca
7.5
Good
3,765 reviews
Check prices

Food

6.3

Comfort

7.3

Entertainment

6.8

Boarding

7.7

Overall

7.5

Crew

7.9

Reviews

1 / 10

Primero cambiaron mi vuelo, y debí llegar a mi país a las 3pm y llegué a las 11pm. Un desastre, sin entretenimiento en cabina, y sin comida, que había que paga aparte.

American Airlines
7.3
Good
14,514 reviews
Avianca
7.5
Good
3,765 reviews
Check prices

Food

6.3

Comfort

7.3

Entertainment

6.8

Boarding

7.7

Overall

7.5

Crew

7.9

Reviews

1 / 10

Primero cambiaron mi vuelo, y debí llegar a mi país a las 3pm y llegué a las 11pm. Un desastre, sin entretenimiento en cabina, y sin comida, que había que paga aparte.

Iberia
7.1
Good
2,748 reviews
Avianca
7.5
Good
3,765 reviews
Check prices

Food

6.3

Comfort

7.3

Entertainment

6.8

Boarding

7.7

Overall

7.5

Crew

7.9

Reviews

1 / 10

Primero cambiaron mi vuelo, y debí llegar a mi país a las 3pm y llegué a las 11pm. Un desastre, sin entretenimiento en cabina, y sin comida, que había que paga aparte.

Vueling
7.0
Good
1,456 reviews
Avianca
7.5
Good
3,765 reviews
Check prices

Food

6.3

Comfort

7.3

Entertainment

6.8

Boarding

7.7

Overall

7.5

Crew

7.9

Reviews

1 / 10

Primero cambiaron mi vuelo, y debí llegar a mi país a las 3pm y llegué a las 11pm. Un desastre, sin entretenimiento en cabina, y sin comida, que había que paga aparte.

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.

  • Can I find flights from Boston to San Sebastian for under $900 on Cheapflights?

    Yes, there are multiple flights from Boston to San Sebastian for under $900. The cheapest flight booked recently is on Iberia for just $803, but on average you can expect to pay $3,587.

  • Are there last-minute flights available from Boston to San Sebastian for under $1,600?

    There are currently 7+ open flights from Boston to San Sebastian within the next 7 days for less than $1,600.

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

    Currently priced at $803, 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 American Airlines and Avianca - these airlines can fly you to your destination from $1,118 and $1,981, respectively. Iberia is priced at 13% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Boston to San Sebastian one-way?

    $435 is the cheapest one-way deal found within the past few days, from Vueling. You may also be able to find cheap deals on Iberia and American Airlines, with prices starting from $603 and $810, respectively.

  • What does BOS to EAS mean?

    BOS stands for Boston Logan Intl Airport, while EAS stands for San Sebastián Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Boston to San Sebastian that include extra baggage allowance?

    The amount of baggage you can bring on your Boston to San Sebastian flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Boston to San Sebastian with specific airlines?

    Yes, Cheapflights allows you to browse and filter Boston to San Sebastian flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Boston to San Sebastian that allow pets onboard?

    Many airlines flying from Boston to San Sebastian offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Boston to San Sebastian?

    Yes, you can often find last-minute deals on Boston to San Sebastian flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Boston to San Sebastian flight deals updated?

    The Boston to San Sebastian flight deals you see on this page were last updated on 5/16.

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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$607Average$796FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
IberiaCheapest$638Average$989FlexibilityNo cancel feeOn-time77%
Search Iberia flights
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Search flights from Boston to San Sebastian by cabin class

Find flights from Boston to San Sebastian, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to San Sebastian?

Deals for Boston to San Sebastian flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Boston to San Sebastian?

Cheapflights helps you find that perfect flight to San Sebastian from Boston by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Boston to San Sebastian with no change fees?

Need flexible booking options for your flight to San Sebastian from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Boston to San Sebastian become cheaper?

Not ready to book yet? You can track prices for flights from Boston to San Sebastian on Cheapflights with our Price Alert feature and get notified when better prices are available.

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