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$659+ Cheap flights from Bilbao (BIO) to Washington

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — SEA
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Bilbao to Washington

Keep the following information in mind while searching for Bilbao to Washington flight deals. Data was last updated July 31, 2025.

Round-trip from

$799
(United Airlines)

One-way from

$659
(Turkish Airlines)

Popular in

July

Cheapest in

February

Average price

$1,220
From Bilbao to Washington
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One-way flight from Bilbao to Washington
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Highest demand for flights based on searches. 15% potential increase in price ($184 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Bilbao to Washington

Cheapest flights from Bilbao to Washington
Explore the most affordable flight options available from Bilbao to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This United Airlines deal was found by Cheapflights users on 7/31. 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 11/136:30 amBIO - SEA
1 stop14h 40mUnited Airlines
Mon 11/178:00 amSEA - BIO
2 stops17h 50mUnited Airlines
Deal found 7/31$799
This Delta deal was found by Cheapflights users on 7/31. 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 8/236:50 amBIO - SEA
1 stop18h 05mDelta
Thu 9/256:45 pmSEA - BIO
1 stop12h 55mDelta
Deal found 7/31$976
This American Airlines deal was found by Cheapflights users on 7/30. 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 11/136:45 amBIO - SEA
2 stops25h 33mAmerican Airlines
Sun 11/1612:59 amSEA - BIO
2 stops26h 51mAmerican Airlines
Deal found 7/30$988
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Sat 8/237:15 pmBIO - SEA
3 stops34h 13mMultiple Airlines
Fri 9/267:15 amSEA - BIO
3 stops25h 15mMultiple Airlines
Deal found 7/30$1,174
This Gotogate deal was found by Cheapflights users on 7/30. 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.
Tue 8/56:45 amBIO - SEA
2 stops16h 31mAir Canada
Tue 8/57:15 pmSEA - BIO
2 stops37h 35mAir Canada
Deal found 7/30$2,121
This TAP AIR PORTUGAL deal was found by Cheapflights users on 7/30. 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.
Thu 8/712:15 pmBIO - SEA
2 stops31h 05mTAP AIR PORTUGAL
Mon 8/1111:30 amSEA - BIO
3 stops21h 30mTAP AIR PORTUGAL
Deal found 7/30$2,731

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bilbao to Washington 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 July 31, 2025.
Use the filters below to find and compare flights from Bilbao to Washington that are best for you.

Fly from

Bilbao

Fly to

Washington

Route

Depart

Return

Price

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Thu 11/13

6:30 am-12:10 pm

1 stop14h 40m

Seattle/Tacoma Intl

Mon 11/17

8:00 am-10:50 am

2 stops17h 50m

$799

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Sat 8/23

6:50 am-3:55 pm

1 stop18h 05m

Seattle/Tacoma Intl

Thu 9/25

6:45 pm-4:40 pm

1 stop12h 55m

$976

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Thu 11/13

6:45 am-11:18 pm

2 stops25h 33m

Seattle/Tacoma Intl

Sun 11/16

12:59 am-12:50 pm

2 stops26h 51m

$988

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Sat 8/23

7:15 pm-8:28 pm

3 stops34h 13m

Seattle/Tacoma Intl

Fri 9/26

7:15 am-5:30 pm

3 stops25h 15m

$1,174

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Sun 9/7

6:30 pm-5:15 pm

1 stop31h 45m

$659

BilbaoSeattle

BIO - SEA

BIOSEA

Bilbao

Sun 9/7

6:45 am-6:36 pm

2 stops20h 51m

$694

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Bilbao to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Bilbao 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 Bilbao to Washington
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated July 31, 2025.
See what other customers who have flown with Delta, United Airlines, and Turkish Airlines from Bilbao to Washington have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Turkish Airlines
7.3
Good
3,933 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Lufthansa
6.8
Okay
7,275 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

Find useful and relevant information for your journey from Bilbao to Washington. 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 from for flights from Bilbao to Washington?

    Located just 3.0 mi from the city center, Bilbao (BIO) is the airport most travelers will use when flying to Washington from Bilbao.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bilbao to Washington 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 Bilbao to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Bilbao to State of Washington (average of $238). Flying from Bilbao to State of Washington in June is currently the most expensive (average of $389). 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

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