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Bilbao

$478+ Cheap flights from Hartford (BDL) to Bilbao (BIO)

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — BIO
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Hartford to Bilbao

Cheapest flights from Hartford to Bilbao
Explore the most affordable flight options available from Hartford to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This FlightHub deal was found by Cheapflights users on 2/4. 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.
Tue 4/147:44 pm
BDL
-
BIO
2 stops16h 11m
Lufthansa
Tue 4/287:15 am
BIO
-
BDL
2 stops22h 44m
Lufthansa
Deal found 2/4$478
This FlightHub deal was found by Cheapflights users on 2/4. 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.
Tue 4/147:44 pm
BDL
-
BIO
2 stops16h 11m
Lufthansa
Mon 4/276:40 pm
BIO
-
BDL
2 stops35h 19m
Lufthansa
Deal found 2/4$488
This United Airlines deal was found by Cheapflights users on 2/4. 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.
Wed 4/155:05 pm
BDL
-
BIO
2 stops24h 20m
United Airlines
Tue 4/286:50 am
BIO
-
BDL
3 stops20h 47m
United Airlines
Deal found 2/4$489
This KAYAK deal was found by Cheapflights users on 2/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:00 pm
BDL
-
BIO
1 stop17h 30m
Multiple Airlines
Mon 4/276:10 pm
BIO
-
BDL
1 stop28h 20m
Multiple Airlines
Deal found 2/4$694
This KAYAK deal was found by Cheapflights users on 2/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 pm
BDL
-
BIO
1 stop17h 30m
Aer Lingus
Mon 4/276:10 pm
BIO
-
BDL
1 stop28h 20m
Aer Lingus
Deal found 2/4$700
This KAYAK deal was found by Cheapflights users on 2/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/143:08 pm
BDL
-
BIO
2 stops20h 22m
Aer Lingus
Tue 4/286:10 pm
BIO
-
BDL
1 stop28h 20m
Aer Lingus
Deal found 2/4$704
This KAYAK deal was found by Cheapflights users on 2/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 pm
BDL
-
BIO
1 stop17h 30m
Aer Lingus
Tue 4/286:10 pm
BIO
-
BDL
2 stops35h 31m
Aer Lingus
Deal found 2/4$710
This Lufthansa deal was found by Cheapflights users on 2/4. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/153:04 pm
BDL
-
BIO
2 stops20h 11m
Lufthansa
Mon 4/276:50 am
BIO
-
BDL
2 stops23h 09m
Lufthansa
Deal found 2/4$746
This United Airlines deal was found by Cheapflights users on 2/1. 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 7/136:00 am
BDL
-
BIO
2 stops28h 00m
United Airlines
Wed 7/2211:55 am
BIO
-
BDL
2 stops18h 03m
United Airlines
Deal found 2/1$769
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 2/184:43 pm
BDL
-
BIO
2 stops19h 22m
United Airlines
Sun 2/226:45 am
BIO
-
BDL
2 stops23h 14m
United Airlines
Deal found 2/2$777
This Bravofly deal was found by Cheapflights users on 2/3. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/202:45 pm
BDL
-
BIO
2 stops16h 15m
Lufthansa
Fri 3/276:45 am
BIO
-
BDL
2 stops22h 14m
Lufthansa
Deal found 2/3$981

Find flight deals from Hartford to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Hartford (BDL) to Bilbao (BIO). 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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$769
(United Airlines)
Provider with most accurate pricing for Hartford Bradley Intl-Bilbao flight deals.
Search Deals
Provider most trusted by Cheapflights users for Hartford Bradley Intl-Bilbao flights.
Search Deals
From Hartford Bradley Intl to Bilbao
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hartford to Bilbao 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 2,558,603 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Hartford to Bilbao that are best for you.

Fly from

Hartford

Fly to

Bilbao

Route

Depart

Return

Price

HartfordBilbao

BDL - BIO

BDLBIO

Hartford Bradley Intl

Tue 4/14

7:44 pm-5:55 pm

2 stops16h 11m

Bilbao

Tue 4/28

7:15 am-11:59 pm

2 stops22h 44m

$478

HartfordBilbao

BDL - BIO

BDLBIO

Hartford Bradley Intl

Tue 4/14

7:44 pm-5:55 pm

2 stops16h 11m

Bilbao

Tue 4/28

6:50 am-9:37 pm

3 stops20h 47m

$489

HartfordBilbao

BDL - BIO

BDLBIO

Hartford Bradley Intl

Wed 4/15

6:30 pm-11:25 pm

2 stops22h 55m

Bilbao

Tue 4/28

6:50 am-6:48 pm

2 stops17h 58m

$489

HartfordBilbao

BDL - BIO

BDLBIO

Hartford Bradley Intl

Tue 4/14

6:00 pm-5:30 pm

1 stop17h 30m

Bilbao

Tue 4/28

6:10 pm-4:30 pm

1 stop28h 20m

$694

HartfordBilbao

BDL - BIO

BDLBIO

Hartford Bradley Intl

Tue 4/14

6:00 pm-5:30 pm

1 stop17h 30m

Bilbao

Mon 4/27

6:10 pm-4:30 pm

1 stop28h 20m

$694

HartfordBilbao

BDL - BIO

BDLBIO

Hartford Bradley Intl

Wed 4/15

6:00 pm-5:30 pm

1 stop17h 30m

Bilbao

Mon 4/27

6:10 pm-4:30 pm

1 stop28h 20m

$700

HartfordBilbao

BDL - BIO

BDLBIO

Hartford Bradley Intl

Wed 4/15

3:04 pm-5:15 pm

2 stops20h 11m

Bilbao

Mon 4/27

6:50 am-11:59 pm

2 stops23h 09m

$746

HartfordBilbao

BDL - BIO

BDLBIO

Hartford Bradley Intl

Mon 7/13

6:00 am-4:00 pm

2 stops28h 00m

Bilbao

Wed 7/22

11:55 am-11:58 pm

2 stops18h 03m

$769

HartfordBilbao

BDL - BIO

BDLBIO

Hartford Bradley Intl

Wed 2/18

4:43 pm-6:05 pm

2 stops19h 22m

Bilbao

Sun 2/22

6:45 am-11:59 pm

2 stops23h 14m

$777

HartfordBilbao

BDL - BIO

BDLBIO

Hartford Bradley Intl

Fri 3/20

2:45 pm-12:00 pm

2 stops16h 15m

Bilbao

Fri 3/27

6:45 am-11:59 pm

2 stops22h 14m

$981

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

  • Most accurate provider: When it comes to deals on Hartford-Bilbao flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hartford-Bilbao flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Hartford-Bilbao flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Hartford-Bilbao flights, Cheapflights users trust FlightHub the most. FlightHub 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 Hartford-Bilbao 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 Hartford to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Hartford with our price prediction graph.
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.

Related info for your journey

Find useful and relevant information for your journey from Hartford to Bilbao. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Hartford to Bilbao?

    For as low as $981, United Airlines can have you in Bilbao from Hartford in 16h 15m. There are 3438 mi between Hartford and Bilbao. This flight may include one or multiple stops.

  • Can I find deals for flights from Hartford to Bilbao that include hotel bookings?

    Yes. In addition to deals on Hartford to Bilbao flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Hartford to Bilbao?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hartford to Bilbao.

  • Can I find deals for business class flights from Hartford to Bilbao?

    Yes. Cheapflights offers flight deals from Hartford to Bilbao by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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