$338+ Cheap flights from Bilbao (BIO) to Boston (BOS)
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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — BOS
Nov 12 — Nov 191
Round-trip
1 adult, Economy
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Find cheap flights from Bilbao to Boston with Cheapflights
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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
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Cheapest flights from Bilbao to BostonExplore the most affordable flight options available from Bilbao to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
Explore the most affordable flight options available from Bilbao to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
This Iberia deal was found by Cheapflights users on 10/9. 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.
Thu 11/59:15 am -
1 stop14h 25m
Mon 11/97:15 pm -
1 stop15h 40m
Deal found 10/9![Iberia logo]()
$397
This American Airlines deal was found by Cheapflights users on 10/12. 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.
Thu 11/129:15 am -
1 stop15h 10m
Wed 11/2512:47 pm -
2 stops13h 43m
Deal found 10/12![American Airlines logo]()
$399
This Expedia deal was found by Cheapflights users on 10/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:00 am -
2 stops13h 25m
Thu 11/268:00 pm -
1 stop16h 50m
Deal found 10/13![Iberia logo]()
$402
This Orbitz deal was found by Cheapflights users on 10/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:45 am -
1 stop16h 55m
Wed 11/118:00 pm -
1 stop21h 15m
Deal found 10/12![Iberia logo]()
$407
This Expedia deal was found by Cheapflights users on 10/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:00 am -
2 stops13h 25m
Wed 11/258:00 pm -
2 stops13h 25m
Deal found 10/8![Iberia logo]()
$408
This American Airlines deal was found by Cheapflights users on 10/11. 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.
Wed 11/259:35 pm -
1 stop26h 50m
Wed 12/212:43 pm -
2 stops13h 47m
Deal found 10/11![American Airlines logo]()
$409
This Flysmarter deal was found by Cheapflights users on 10/12. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:35 pm -
1 stop10h 50m
Sun 11/298:00 pm -
1 stop10h 50m
Deal found 10/12![Iberia logo]()
$411
This Trip.com deal was found by Cheapflights users on 10/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:15 am -
1 stop14h 25m
Tue 11/107:35 pm -
1 stop19h 15m
Deal found 10/9![Iberia logo]()
$417
Best flights from Bilbao to BostonDiscover carefully curated flight deals from Bilbao to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
Discover carefully curated flight deals from Bilbao to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
This Iberia deal was found by Cheapflights users on 10/9. 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.
Thu 1/1410:30 am -
2 stops13h 55m
Mon 1/188:00 pm -
2 stops15h 20m
Deal found 10/9![Iberia logo]()
$442
This American Airlines deal was found by Cheapflights users on 10/11. 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.
Thu 11/126:45 am -
2 stops16h 12m
Wed 11/2512:47 pm -
2 stops13h 43m
Deal found 10/11![American Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 10/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:45 am -
1 stop13h 00m
Mon 11/97:15 am -
2 stops21h 45m
Deal found 10/12![United Airlines logo]()
$527
This Iberia deal was found by Cheapflights users on 10/12. 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 11/25:35 pm -
2 stops29h 22m
Sun 11/157:15 pm -
2 stops22h 00m
Deal found 10/12![Iberia logo]()
$486
This United Airlines deal was found by Cheapflights users on 10/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:45 am -
1 stop13h 00m
Sun 11/156:36 pm -
2 stops21h 19m
Deal found 10/10![United Airlines logo]()
$528
This United Airlines deal was found by Cheapflights users on 10/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:45 am -
2 stops21h 14m
Wed 11/257:41 pm -
2 stops44h 14m
Deal found 10/11![United Airlines logo]()
$533
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/176:45 am -
2 stops18h 23m
Sat 1/2312:26 pm -
3 stops17h 14m
Deal found 10/8![United Airlines logo]()
$535
This United Airlines deal was found by Cheapflights users on 10/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:45 am -
2 stops16h 42m
Wed 11/112:40 pm -
2 stops19h 30m
Deal found 10/12![United Airlines logo]()
$536
This United Airlines deal was found by Cheapflights users on 10/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/116:45 am -
2 stops30h 59m
Mon 1/1812:26 pm -
3 stops28h 44m
Deal found 10/13![United Airlines logo]()
$547
Last-minute flights from Bilbao to BostonDiscover last-minute flight deals from Bilbao to Boston. Data last updated October 13, 2026 and is based on user searches.
Discover last-minute flight deals from Bilbao to Boston. Data last updated October 13, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 10/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:15 am -
1 stop14h 25m
Tue 11/107:35 pm -
1 stop19h 15m
Deal found 10/9![Iberia logo]()
$417
This Iberia deal was found by Cheapflights users on 10/9. 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.
Thu 11/59:15 am -
1 stop14h 25m
Mon 11/97:15 pm -
1 stop15h 40m
Deal found 10/9![Iberia logo]()
$397
This American Airlines deal was found by Cheapflights users on 10/9. 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.
Thu 11/56:45 am -
1 stop16h 55m
Mon 11/97:15 pm -
1 stop15h 40m
Deal found 10/9![American Airlines logo]()
$398
This Orbitz deal was found by Cheapflights users on 10/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:45 am -
1 stop16h 55m
Wed 11/118:00 pm -
1 stop21h 15m
Deal found 10/12![Iberia logo]()
$407
This American Airlines deal was found by Cheapflights users on 10/12. 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.
Thu 11/129:15 am -
1 stop15h 10m
Wed 11/2512:47 pm -
2 stops13h 43m
Deal found 10/12![American Airlines logo]()
$399
This Expedia deal was found by Cheapflights users on 10/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:00 am -
2 stops13h 25m
Thu 11/268:00 pm -
1 stop16h 50m
Deal found 10/13![Iberia logo]()
$402
This Expedia deal was found by Cheapflights users on 10/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:00 am -
2 stops13h 25m
Wed 11/258:00 pm -
2 stops13h 25m
Deal found 10/8![Iberia logo]()
$408
This American Airlines deal was found by Cheapflights users on 10/11. 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.
Wed 11/259:35 pm -
1 stop26h 50m
Wed 12/212:43 pm -
2 stops13h 47m
Deal found 10/11![American Airlines logo]()
$409
This Flysmarter deal was found by Cheapflights users on 10/12. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:35 pm -
1 stop10h 50m
Sun 11/298:00 pm -
1 stop10h 50m
Deal found 10/12![Iberia logo]()
$411
One-way flights from Bilbao to BostonSearch for one-way flight options from Bilbao to Boston. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
Search for one-way flight options from Bilbao to Boston. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
This Justfly.com deal was found by Cheapflights users on 10/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/2312:25 pm -
1 stop13h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![TAP AIR PORTUGAL logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 1/216:45 am -
1 stop17h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Iberia logo]()
$339
This Trip.com deal was found by Cheapflights users on 10/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/246:40 pm -
1 stop31h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![TAP AIR PORTUGAL logo]()
$341
This Justfly.com deal was found by Cheapflights users on 10/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/257:20 pm -
2 stops31h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![TAP AIR PORTUGAL logo]()
$347
This Expedia deal was found by Cheapflights users on 10/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/249:35 pm -
2 stops25h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Iberia logo]()
$349
This Justfly.com deal was found by Cheapflights users on 10/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:40 pm -
2 stops55h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![TAP AIR PORTUGAL logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 10/11. 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.
Fri 1/221:35 pm -
1 stop10h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Iberia logo]()
$364
This American Airlines deal was found by Cheapflights users on 10/8. 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.
Tue 12/159:15 am -
1 stop15h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![American Airlines logo]()
$382
This TAP AIR PORTUGAL deal was found by Cheapflights users on 10/12. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:50 pm -
2 stops31h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![TAP AIR PORTUGAL logo]()
$388
Find flight deals from Bilbao to Boston
Discover tips and strategies to find the most affordable flight options for your journey from Bilbao (BIO) to Boston (BOS). 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 October 13, 2026.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $397 (Iberia) |
One-way from | $338 (Justfly.com) |
Popular in | June |
Cheapest in | February |
Average price | $535 |
Cheapflights Fare Finder
Customize your flight search to find flights from Bilbao to Boston 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 7,457,451 searches. Data last updated October 13, 2026.
Use the filters below to find and compare flights from Bilbao to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Thu 1/21
6:45 am-6:25 pm
1 stop17h 40m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$339
Quickest round-trip
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Wed 1/27
1:35 pm-6:25 pm
1 stop10h 50m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$341
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Sun 1/24
9:35 pm-5:02 pm
2 stops25h 27m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$349
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Tue 12/15
9:15 am-6:25 pm
1 stop15h 10m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$382
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Tue 10/20
6:50 pm-8:20 pm
2 stops31h 30m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$388
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Mon 11/16
8:30 am-2:45 pm
3 stops36h 15m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$433
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Tue 12/15
10:50 pm-3:05 pm
3 stops46h 15m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$434
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Thu 1/14
10:30 am-6:25 pm
2 stops13h 55m
Boston Logan Intl
Mon 1/18
8:00 pm-5:20 pm
2 stops15h 20m
$442
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Sat 11/14
12:25 pm-10:41 am
2 stops28h 16m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$481
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Mon 11/2
5:35 pm-4:57 pm
2 stops29h 22m
Boston Logan Intl
Sun 11/15
7:15 pm-11:15 pm
2 stops22h 00m
$486
Showing 1-10 of 19 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Bilbao-Boston flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Bilbao-Boston flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Bilbao-Boston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Bilbao-Boston flights, Cheapflights users trust AranGrant the most. AranGrant 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 Bilbao-Boston 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 Bilbao to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from Bilbao with our price prediction graph.
BIO-BOS
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 Bilbao to Boston
What is the cheapest month to book a flight from Bilbao to Boston?
Currently, February is the cheapest month in which you can book a flight from Bilbao to Boston (average of $473). Flying from Bilbao to Boston in June is currently the most expensive (average of $955). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Bilbao to Boston?
Airfare is below average for this route at the moment.
Bilbao to Boston flights typically cost between $495 and $651 in November.The cheapest round-trip price found within the last 5 days was $397 on Iberia (Nov 5-Nov 9).
Related info for your journey
Find useful and relevant information for your journey from Bilbao to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWaltham
Randolph
Concord
Cambridge
Brockton
Dedham
Cranston
Warwick
Pawtucket
Peabody
Londonderry
York Beach
Revere
Fitchburg
North Falmouth
Chelsea
Swansea
Braintree
Auburn
Sandwich
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