$323+ 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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — BOS
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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Find cheap flights from Bilbao to Boston 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
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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 Bilbao to Boston
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Best
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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 26, 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 26, 2026.
This American Airlines deal was found by Cheapflights users on 10/24. 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
Thu 11/268:00 pm -
1 stop10h 50m
Deal found 10/24![American Airlines logo]()
$397
This Priceline deal was found by Cheapflights users on 10/21. 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 Priceline 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 stop11h 35m
Deal found 10/21![Iberia logo]()
$398
This Expedia deal was found by Cheapflights users on 10/24. 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 stop10h 50m
Deal found 10/24![Iberia logo]()
$402
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Fri 12/41:35 pm -
1 stop10h 50m
Mon 12/78:00 pm -
1 stop14h 55m
Deal found 10/22![Multiple Airlines logo]()
$415
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Fri 12/41:35 pm -
1 stop10h 50m
Mon 12/78:00 pm -
1 stop30h 30m
Deal found 10/22![American Airlines logo]()
$424
This American Airlines deal was found by Cheapflights users on 10/25. 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.
Mon 11/29:35 pm -
1 stop26h 05m
Sun 11/158:00 pm -
1 stop10h 50m
Deal found 10/25![American Airlines logo]()
$425
This Expedia deal was found by Cheapflights users on 10/22. 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.
Fri 11/201:35 pm -
1 stop10h 50m
Wed 11/257:15 pm -
2 stops22h 00m
Deal found 10/22![Iberia logo]()
$436
This Travelocity deal was found by Cheapflights users on 10/24. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/61:35 pm -
1 stop10h 25m
Tue 11/107:40 pm -
2 stops54h 50m
Deal found 10/24![Iberia logo]()
$442
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 26, 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 26, 2026.
This Expedia deal was found by Cheapflights users on 10/26. 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.
Wed 11/256:45 am -
1 stop17h 40m
Mon 11/308:00 pm -
1 stop10h 50m
Deal found 10/26![Iberia logo]()
$397
This United Airlines deal was found by Cheapflights users on 10/24. 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 stops24h 01m
Thu 11/269:00 am -
2 stops30h 55m
Deal found 10/24![United Airlines logo]()
$544
This Gotogate deal was found by Cheapflights users on 10/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:45 am -
1 stop13h 00m
Wed 11/254:05 pm -
1 stop13h 35m
Deal found 10/22![Lufthansa logo]()
$549
This American Airlines deal was found by Cheapflights users on 10/22. 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 1/261:35 pm -
1 stop12h 25m
Thu 1/285:23 pm -
2 stops13h 27m
Deal found 10/22![American Airlines logo]()
$644
This Booking.com deal was found by Cheapflights users on 10/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:10 pm -
1 stop32h 30m
Tue 11/106:00 pm -
1 stop11h 25m
Deal found 10/24![TAP AIR PORTUGAL logo]()
$658
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Tue 12/226:40 pm -
1 stop26h 00m
Mon 1/410:10 pm -
2 stops32h 10m
Deal found 10/25![Multiple Airlines logo]()
$732
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Fri 11/206:45 am -
2 stops17h 49m
Wed 11/259:00 am -
2 stops20h 00m
Deal found 10/22![United Airlines logo]()
$545
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/57:30 am -
2 stops20h 00m
Tue 11/105:30 am -
2 stops34h 25m
Deal found 10/23![United Airlines logo]()
$602
This Mytrip deal was found by Cheapflights users on 10/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2311:00 pm -
3 stops24h 50m
Thu 1/77:50 pm -
2 stops16h 45m
Deal found 10/25![Multiple Airlines logo]()
$757
This Iberia deal was found by Cheapflights users on 10/26. 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.
Wed 12/239:35 pm -
2 stops29h 56m
Wed 12/306:35 pm -
2 stops20h 35m
Deal found 10/26![Iberia logo]()
$797
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Fri 3/196:45 am -
1 stop13h 00m
Sat 3/277:15 am -
3 stops24h 10m
Deal found 10/24![United Airlines logo]()
$765
Last-minute flights from Bilbao to BostonDiscover last-minute flight deals from Bilbao to Boston. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Bilbao to Boston. Data last updated October 26, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/25. 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.
Mon 11/29:35 pm -
1 stop26h 05m
Sun 11/158:00 pm -
1 stop10h 50m
Deal found 10/25![American Airlines logo]()
$425
This Priceline deal was found by Cheapflights users on 10/21. 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 Priceline 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 stop11h 35m
Deal found 10/21![Iberia logo]()
$398
This Travelocity deal was found by Cheapflights users on 10/24. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/61:35 pm -
1 stop10h 25m
Tue 11/107:40 pm -
2 stops54h 50m
Deal found 10/24![Iberia logo]()
$442
This American Airlines deal was found by Cheapflights users on 10/24. 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
Thu 11/268:00 pm -
1 stop10h 50m
Deal found 10/24![American Airlines logo]()
$397
This Expedia deal was found by Cheapflights users on 10/24. 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 stop10h 50m
Deal found 10/24![Iberia logo]()
$402
This Expedia deal was found by Cheapflights users on 10/22. 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.
Fri 11/201:35 pm -
1 stop10h 50m
Wed 11/257:15 pm -
2 stops22h 00m
Deal found 10/22![Iberia logo]()
$436
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 26, 2026.
Search for one-way flight options from Bilbao to Boston. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Booking.com deal was found by Cheapflights users on 10/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1712:10 pm -
1 stop14h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![TAP AIR PORTUGAL logo]()
$323
This TAP AIR PORTUGAL deal was found by Cheapflights users on 10/25. 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.
Mon 12/147:20 pm -
1 stop25h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![TAP AIR PORTUGAL logo]()
$341
This FlightHub deal was found by Cheapflights users on 10/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1612:10 pm -
1 stop32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![TAP AIR PORTUGAL logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Sun 11/296:40 pm -
2 stops55h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![TAP AIR PORTUGAL logo]()
$356
This Booking.com deal was found by Cheapflights users on 10/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:20 pm -
1 stop25h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![TAP AIR PORTUGAL logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Sun 12/206:40 pm -
1 stop26h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![TAP AIR PORTUGAL logo]()
$376
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:20 pm -
2 stops31h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![TAP AIR PORTUGAL logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Tue 12/159:15 am -
2 stops20h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Iberia logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Wed 12/1611:00 pm -
2 stops22h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
Sat 12/195:40 pm -
3 stops32h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$429
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 26, 2026.
Most accurate provider | eDreams 2 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $397 (American Airlines) |
One-way from | $323 (Booking.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 26, 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
Mon 12/14
7:20 pm-2:45 pm
1 stop25h 25m
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 11/29
6:40 pm-8:30 pm
2 stops55h 50m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$356
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Fri 11/20
7:20 pm-2:55 pm
1 stop25h 35m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$360
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Mon 11/2
7:20 pm-8:30 pm
2 stops31h 10m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$379
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Wed 11/25
6:45 am-6:25 pm
1 stop17h 40m
Boston Logan Intl
Mon 11/30
8:00 pm-12:50 pm
1 stop10h 50m
$397
Quickest round-trip
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Fri 11/20
8:30 am-10:55 pm
2 stops20h 25m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$447
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Sat 12/19
5:40 pm-7:55 pm
2 stops32h 15m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$465
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Sat 11/14
7:40 pm-8:00 pm
3 stops30h 20m
Boston Logan Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$478
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Thu 11/12
6:45 am-12:46 am
2 stops24h 01m
Boston Logan Intl
Thu 11/26
9:00 am-9:55 pm
2 stops30h 55m
$544
BilbaoBoston
BIO Bilbao - BOS Boston Logan Intl
BIOBOS
Bilbao
Fri 11/20
6:45 am-6:34 pm
2 stops17h 49m
Boston Logan Intl
Wed 11/25
9:00 am-11:00 am
2 stops20h 00m
$545
Showing 1-10 of 18 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Bilbao-Boston flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Bilbao-Boston flight deals on Cheapflights vs. eDreams 90-95% 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 eDreams the most. eDreams 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 $486 and $588 in November.The cheapest round-trip price found within the last 5 days was $397 on American Airlines (Nov 12-Nov 26).
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
Fitchburg
Londonderry
York Beach
Revere
North Falmouth
Chelsea
Swansea
Braintree
Auburn
Sandwich
Browse thousands of different options on Cheapflights for your next trip
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