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Bilbao

$305+ Cheap flights from Washington to Bilbao (BIO)

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BIO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Washington to Bilbao

Keep the following information in mind while searching for Washington to Bilbao flight deals. Data was last updated June 12, 2025.

Round-trip from

$501
(Expedia)

One-way from

$305
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$1,525
From Washington to Bilbao
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One-way flight from Washington to Bilbao
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Highest demand for flights based on searches. 17% potential increase in price ($230 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Washington to Bilbao

Cheapest flights from Washington to Bilbao
Explore the most affordable flight options available from Washington to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Expedia deal was found by Cheapflights users on 6/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/164:00 pmSEA - BIO
1 stop33h 00mScandinavian Airlines
Fri 8/298:40 pmBIO - SEA
1 stop26h 10mScandinavian Airlines
Deal found 6/10$501
This Gotogate deal was found by Cheapflights users on 6/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/207:40 pmPDX - BIO
2 stops37h 45mMultiple Airlines
Sun 9/287:05 pmBIO - PDX
2 stops32h 41mMultiple Airlines
Deal found 6/12$623
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Sat 9/207:00 amPDX - BIO
3 stops48h 05mUnited Airlines
Sun 9/286:45 amBIO - PDX
2 stops35h 36mUnited Airlines
Deal found 6/12$666
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Mon 8/187:00 pmSEA - BIO
2 stops30h 45mUnited Airlines
Sat 8/306:45 amBIO - SEA
2 stops42h 06mUnited Airlines
Deal found 6/12$715
This Air France deal was found by Cheapflights users on 6/11. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/186:40 pmSEA - BIO
1 stop18h 20mAir France
Sat 8/3011:40 amBIO - SEA
1 stop14h 55mAir France
Deal found 6/11$743
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:50 pmSEA - BIO
1 stop14h 00mLufthansa
Mon 9/297:10 pmBIO - SEA
1 stop25h 45mLufthansa
Deal found 6/12$747
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/176:40 pmSEA - BIO
1 stop31h 35mDelta
Sat 8/307:10 amBIO - SEA
2 stops20h 36mDelta
Deal found 6/12$755
This KLM deal was found by Cheapflights users on 6/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/176:40 pmSEA - BIO
1 stop18h 20mKLM
Sat 8/305:15 pmBIO - SEA
1 stop31h 40mKLM
Deal found 6/12$765
This Air Canada deal was found by Cheapflights users on 6/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/175:30 amSEA - BIO
2 stops27h 55mAir Canada
Sat 8/306:45 amBIO - SEA
2 stops22h 56mAir Canada
Deal found 6/12$784
This Air France deal was found by Cheapflights users on 6/11. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/165:40 pmSEA - BIO
1 stop20h 05mMultiple Airlines
Sat 8/3011:40 amBIO - SEA
1 stop14h 55mMultiple Airlines
Deal found 6/11$819
This Gurufare deal was found by Cheapflights users on 6/10. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/67:35 pmSEA - BIO
1 stop12h 55mAer Lingus
Wed 8/136:10 pmBIO - SEA
1 stop32h 40mAer Lingus
Deal found 6/10$849
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/206:15 amPDX - BIO
2 stops19h 10mDelta
Sun 9/286:50 amBIO - PDX
1 stop13h 10mDelta
Deal found 6/12$911

Cheapflights Fare Finder

Customize your flight search to find flights from Washington 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 June 12, 2025.
Use the filters below to find and compare flights from Washington to Bilbao that are best for you.

Fly from

Washington

Fly to

Bilbao

Route

Depart

Return

Price

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sat 8/16

4:00 pm-10:00 am

1 stop33h 00m

Bilbao

Fri 8/29

8:40 pm-1:50 pm

1 stop26h 10m

$501

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sat 9/20

7:40 pm-6:25 pm

2 stops37h 45m

Bilbao

Sun 9/28

7:05 pm-6:46 pm

2 stops32h 41m

$623

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Sat 9/20

7:00 am-4:05 pm

3 stops48h 05m

Bilbao

Sun 9/28

6:45 am-9:21 am

2 stops35h 36m

$666

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Mon 8/18

7:00 pm-10:45 am

2 stops30h 45m

Bilbao

Sat 8/30

6:45 am-3:51 pm

2 stops42h 06m

$715

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Mon 8/18

6:40 pm-10:00 pm

1 stop18h 20m

Bilbao

Sat 8/30

11:40 am-5:35 pm

1 stop14h 55m

$743

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Fri 9/5

6:50 pm-5:50 pm

1 stop14h 00m

Bilbao

Mon 9/29

7:10 pm-11:55 am

1 stop25h 45m

$747

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sun 8/17

6:40 pm-11:15 am

1 stop31h 35m

Bilbao

Sat 8/30

7:10 am-6:46 pm

2 stops20h 36m

$755

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sun 8/17

6:40 pm-10:00 pm

1 stop18h 20m

Bilbao

Sat 8/30

5:15 pm-3:55 pm

1 stop31h 40m

$765

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sun 8/17

5:30 am-6:25 pm

2 stops27h 55m

Bilbao

Sat 8/30

6:45 am-8:41 pm

2 stops22h 56m

$784

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sat 8/16

5:40 pm-10:45 pm

1 stop20h 05m

Bilbao

Sat 8/30

11:40 am-5:35 pm

1 stop14h 55m

$819

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 27 results
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Best time to book a flight from Washington to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Washington 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.

Cheapflights Insights

Everything you need to know about your flight from Washington to Bilbao

What is the cheapest month to book a flight from State of Washington to Bilbao?

Currently, January is the cheapest month in which you can book a flight from State of Washington to Bilbao (average of $541). Flying from State of Washington to Bilbao in June is currently the most expensive (average of $1,139). 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.

What is the cheapest time of day to fly from WA to BIO?

Find hourly flight availability from Washington to Bilbao. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Bilbao as you normally would.

Rainfall in Bilbao by month

Plan your trip to Bilbao by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bilbao ranges from 2.4 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Bilbao when rainfall is around 2.4 in.

Temperature in Bilbao by month

Plan your trip to Bilbao by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bilbao, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Bilbao

Get insights into the airlines that provide service to Bilbao. 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 Bilbao. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Washington to Bilbao, such as Delta, KLM and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Turkish Airlines
7.3
Good
3,848 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What airport do you fly into for flights to Bilbao from Washington?

    Bilbao (BIO), located 3.0 mi from the city center, is the airport you fly into when you book flights from Washington to Bilbao.

  • What are the cheapest airlines to fly from State of Washington to Bilbao one-way?

    The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as $463. However, be on the lookout for offers from Air France and United Airlines, as they are both options that can get you from State of Washington to Bilbao for a low price.

  • What are the most popular routes from State of Washington to Bilbao?

    The most popular flight routes from State of Washington to Bilbao are Seattle/Tacoma Intl - Bilbao, Portland - Bilbao and Pasco Tri Cities - Bilbao.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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.

  • What is the cheapest month to book a flight from State of Washington to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Bilbao (average of $541). Flying from State of Washington to Bilbao in June is currently the most expensive (average of $1,139). 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.

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Alternative routes for Washington to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Bilbao flights
John F Kennedy Intl to Bilbao flights
LaGuardia to Bilbao flights
San Francisco to Bilbao flights
John F Kennedy Intl to San Sebastian flights
Dulles Intl to Bilbao flights
Reagan-National to Bilbao flights
Miami to Bilbao flights
Los Angeles to Bilbao flights
Hobby to Bilbao flights
Boston to Bilbao flights
Baltimore to Bilbao flights
Dallas/Fort Worth to San Sebastian flights
Seattle to Bilbao flights
Denver to Bilbao flights
Los Angeles to San Sebastian flights
Newark to San Sebastian flights
Boston to San Sebastian flights
O'Hare Intl to Bilbao flights
Dulles Intl to San Sebastian flights
San Jose to Bilbao flights
LaGuardia to San Sebastian flights
Philadelphia to San Sebastian flights
George Bush Intcntl to Bilbao flights
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O'Hare Intl to San Sebastian flights
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Omaha to Bilbao flights
Ontario to San Sebastian flights
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Orlando to Bilbao flights

Top 5 airlines flying from Washington to Bilbao

Discover the top 5 airlines that operate flights from Washington to Bilbao. 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$596Average$1,318FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$672Average$1,232FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$675Average$1,097FlexibilityNo cancel feeOn-time77%
DeltaCheapest$730Average$1,182FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$765Average$992FlexibilityNo cancel feeOn-time75%

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