HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bilbao

$425+ 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BIO
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Bilbao 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
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 Washington to Bilbao

Keep the following information in mind while searching for Washington to Bilbao flight deals. Data was last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$747
(Gotogate)

One-way from

$425
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$786
Provider with most accurate pricing for Seattle/Tacoma Intl-Bilbao flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Bilbao flights.
Search Deals
From Washington to Bilbao
Search Deals
One-way flight from Washington to Bilbao
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($321 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

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 February 22, 2025.

This Gotogate deal was found by Cheapflights users on 2/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/26:00 amSEA - BIO
2 stops20h 05mAir Canada
Wed 4/96:45 amBIO - SEA
2 stops23h 41mAir Canada
Deal found 2/21$747
This Gotogate deal was found by Cheapflights users on 2/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/25:45 amSEA - BIO
2 stops27h 35mMultiple Airlines
Wed 4/96:45 amBIO - SEA
1 stop14h 40mMultiple Airlines
Deal found 2/21$760
This SmartFares deal was found by Cheapflights users on 2/22. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/26:50 pmSEA - BIO
1 stop19h 35mLufthansa
Wed 4/97:15 amBIO - SEA
1 stop18h 44mLufthansa
Deal found 2/22$772
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Wed 4/26:50 pmSEA - BIO
1 stop19h 35mUnited Airlines
Wed 4/96:45 amBIO - SEA
2 stops47h 41mUnited Airlines
Deal found 2/22$780
This KLM deal was found by Cheapflights users on 2/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/301:55 pmSEA - BIO
1 stop23h 50mKLM
Thu 4/176:50 amBIO - SEA
1 stop13h 55mKLM
Deal found 2/21$916
This Delta deal was found by Cheapflights users on 2/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/306:20 amSEA - BIO
2 stops19h 55mDelta
Thu 4/176:50 amBIO - SEA
1 stop18h 10mDelta
Deal found 2/21$921
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Mon 3/241:44 pmPSC - BIO
2 stops24h 06mUnited Airlines
Sun 3/306:45 amBIO - PSC
2 stops25h 40mUnited Airlines
Deal found 2/22$951
This FlightHub deal was found by Cheapflights users on 2/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/247:00 pmSEA - BIO
1 stop36h 25mTurkish Airlines
Wed 3/55:20 pmBIO - SEA
1 stop32h 45mTurkish Airlines
Deal found 2/22$986
This Booking.com deal was found by Cheapflights users on 2/21. 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.
Wed 8/203:25 pmPDX - BIO
2 stops17h 25mAir Canada
Wed 9/36:45 amBIO - PDX
2 stops35h 46mAir Canada
Deal found 2/21$994
This Delta deal was found by Cheapflights users on 2/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/107:00 amPDX - BIO
2 stops18h 25mDelta
Sat 10/257:10 amBIO - PDX
2 stops19h 58mDelta
Deal found 2/21$998
This FlightHub deal was found by Cheapflights users on 2/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/76:15 amPDX - BIO
2 stops27h 05mMultiple Airlines
Thu 5/228:40 amBIO - PDX
2 stops19h 05mMultiple Airlines
Deal found 2/21$1,004
This KLM deal was found by Cheapflights users on 2/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/303:10 pmPDX - BIO
2 stops16h 20mKLM
Wed 5/76:50 amBIO - PDX
1 stop13h 30mKLM
Deal found 2/21$1,012

Find flights from Washington to Bilbao within your budget

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 February 22, 2025.

Fly from

Washington

Fly to

Bilbao

Route

Depart

Return

Price

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 4/2

6:00 am-11:05 am

2 stops20h 05m

Bilbao

Wed 4/9

6:45 am-9:26 pm

2 stops23h 41m

$747

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 4/2

5:45 am-6:20 pm

2 stops27h 35m

Bilbao

Wed 4/9

6:45 am-12:25 pm

1 stop14h 40m

$760

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 4/2

6:50 pm-11:25 pm

1 stop19h 35m

Bilbao

Wed 4/9

7:15 am-4:59 pm

1 stop18h 44m

$772

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 4/2

6:50 pm-11:25 pm

1 stop19h 35m

Bilbao

Wed 4/9

6:45 am-9:26 pm

2 stops47h 41m

$780

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sun 3/30

1:55 pm-10:45 pm

1 stop23h 50m

Bilbao

Thu 4/17

6:50 am-11:45 am

1 stop13h 55m

$916

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sun 3/30

6:20 am-11:15 am

2 stops19h 55m

Bilbao

Thu 4/17

6:50 am-4:00 pm

1 stop18h 10m

$921

PascoBilbao

PSC - BIO

PSCBIO

Pasco Tri Cities

Mon 3/24

1:44 pm-9:50 pm

2 stops24h 06m

Bilbao

Sun 3/30

6:45 am-11:25 pm

2 stops25h 40m

$951

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Wed 8/20

3:25 pm-5:50 pm

2 stops17h 25m

Bilbao

Wed 9/3

6:45 am-9:31 am

2 stops35h 46m

$994

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Wed 4/30

9:55 am-6:20 pm

2 stops23h 25m

Bilbao

Wed 5/7

6:45 am-6:45 pm

2 stops21h 00m

$996

PortlandBilbao

PDX - BIO

PDXBIO

Portland

Wed 5/7

6:15 am-6:20 pm

2 stops27h 05m

Bilbao

Thu 5/22

8:40 am-6:45 pm

2 stops19h 05m

$1,004

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 29 results
1
2
3

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.

Travel insights for flights from Washington to Bilbao

Get recent, data-driven insights about flights from Washington to Bilbao including ideal travel times, pricing trends, and more.

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 $1,178). 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 February 22, 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 February 22, 2025.
Read through reviews of airlines operating flights from Washington to Bilbao, such as Delta, KLM and SWISS. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,213 reviews

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,213 reviews
Delta
8.0
Very good
8,213 reviews

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,331 reviews
Delta
8.0
Very good
8,213 reviews

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,566 reviews
Delta
8.0
Very good
8,213 reviews

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,759 reviews
Delta
8.0
Very good
8,213 reviews

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Turkish Airlines
7.3
Good
3,825 reviews
Delta
8.0
Very good
8,213 reviews

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 Lufthansa, with whom users have recently found tickets for as low as $607. However, be on the lookout for offers from United Airlines and Air Canada, 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 $1,178). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Bilbao flights
Newark to Bilbao flights
Seattle to Bilbao flights
San Francisco to Bilbao flights
LaGuardia to Bilbao flights
Miami to Bilbao flights
O'Hare Intl to Bilbao flights
Reagan-National to Bilbao flights
Dulles Intl to Bilbao flights
John F Kennedy Intl to San Sebastian flights
Baltimore to Bilbao flights
Boston to Bilbao flights
Los Angeles to Bilbao flights
Newark to San Sebastian flights
LaGuardia to San Sebastian flights
Dulles Intl to San Sebastian flights
Charlotte to Bilbao flights
San Jose to Bilbao flights
Charlotte to San Sebastian flights
Denver to Bilbao flights
Ontario to Bilbao flights
Detroit to Bilbao flights
Los Angeles to San Sebastian flights
Hobby to Bilbao flights
Dallas/Fort Worth to San Sebastian flights
George Bush Intcntl to Bilbao flights
Reagan-National to San Sebastian flights
Portland to Bilbao flights
Miami to San Sebastian flights
O'Hare Intl to San Sebastian flights
Philadelphia to Bilbao flights
Midway to Bilbao flights
Philadelphia to San Sebastian flights
Minneapolis to Bilbao flights
Seattle to San Sebastian flights
Indianapolis to Bilbao flights
Baltimore to San Sebastian flights
Pittsburgh to Bilbao flights
Boston to San Sebastian flights
Orlando to Bilbao flights
Raleigh to Bilbao flights
Ontario to San Sebastian flights
San Francisco to San Sebastian flights
Sky Harbor Intl to Bilbao flights
Sacramento to Bilbao flights
Denver to San Sebastian flights
Atlanta to Bilbao flights
Atlanta to San Sebastian flights
Columbus to Bilbao flights
Cincinnati 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$672Average$1,232FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$675Average$928FlexibilityNo cancel feeOn-time77%
DeltaCheapest$757Average$1,206FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$765Average$1,101FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$786Average$1,595FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.