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WAS - BIO

Find cheap flights from Washington, D.C. to Bilbao from $403

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Bilbao departing on 7/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 5/18
Sat 5/25

Search hundreds of travel sites at once for deals on flights to Bilbao

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Bilbao.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Bilbao.
In the last 7 days travelers have searched 44,471,296 times on KAYAK, and here is why:

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Cheap flight deals from Washington, D.C. to Bilbao (WAS-BIO)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Bilbao that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:45 pm - 7:45 amIAD-BIO
29h 00m1 stop
7:35 am - 7:25 pmBIO-IAD
17h 50m1 stop
$573Brussels Airlines
Find Deal
Wed, May 8 - Wed, May 15
8:45 pm - 7:40 pmIAD-BIO
16h 55m1 stop
4:05 pm - 4:15 pmBIO-IAD
30h 10m1 stop
$579SWISS
Find Deal
Mon, May 6 - Mon, May 20
12:21 pm - 9:55 amIAD-BIO
15h 34m2 stops
12:00 pm - 4:00 pmBIO-IAD
34h 00m1 stop
$594Delta
Find Deal
Mon, May 6 - Mon, May 20
12:02 pm - 9:55 amBWI-BIO
15h 53m2 stops
7:10 am - 4:30 pmBIO-BWI
15h 20m2 stops
$602Delta
Find Deal
Tue, Jul 30 - Tue, Sep 3
3:20 pm - 11:25 pmIAD-BIO
26h 05m2 stops
7:35 am - 11:18 pmBIO-IAD
21h 43m2 stops
$625United Airlines
Find Deal
Wed, May 8 - Wed, May 15
8:45 pm - 11:15 pmIAD-BIO
20h 30m1 stop
1:40 pm - 7:15 pmBIO-IAD
11h 35m1 stop
$639Iberia
Find Deal
Sat, Apr 27 - Sat, May 4
10:05 pm - 5:50 pmIAD-BIO
37h 45m2 stops
6:35 pm - 7:25 pmBIO-IAD
30h 50m1 stop
$682Lufthansa
Find Deal
Sat, May 4 - Sat, May 11
10:05 pm - 5:50 pmIAD-BIO
37h 45m2 stops
6:35 pm - 1:30 pmBIO-IAD
24h 55m2 stops
$714Lufthansa
Find Deal
Sat, May 4 - Sat, May 11
10:20 pm - 11:25 pmIAD-BIO
19h 05m1 stop
7:35 am - 8:16 pmBIO-IAD
18h 41m2 stops
$739United Airlines
Find Deal
Mon, Apr 29 - Wed, May 15
8:45 pm - 4:10 pmIAD-BIO
13h 25m2 stops
1:40 pm - 7:15 pmBIO-IAD
11h 35m1 stop
$751Iberia
Find Deal
Sat, Apr 27 - Sat, May 4

Flights from Washington, D.C. to Bilbao - Travel Insights & Trends

Get data-powered insights and trends into flights from Washington, D.C. to Bilbao to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington, D.C. to Bilbao?

The average price of all flights from Washington, D.C. to Bilbao clicked on KAYAK for each day over the last 12 months.
For Washington, D.C. to Bilbao, Monday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Bilbao back to Washington, D.C., the best deals are generally found on Tuesday, with Sunday being the most expensive.

What is the cheapest month to fly from Washington, D.C. to Bilbao?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. to Bilbao, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. to Bilbao is January, where tickets cost $590 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,289 and $1,165 respectively.

How far in advance should I book a flight from Washington, D.C. to Bilbao?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. to Bilbao, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. to Bilbao, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 33 days before departure.

Which airlines provide the cheapest flights from Washington, D.C. to Bilbao?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Washington, D.C. to Bilbao found by KAYAK users in the last 72 hours was for $573 on Brussels Airlines, followed by SWISS ($579). One-way flight deals have also been found from as low as $480 on TAP AIR PORTUGAL and from $551 on Air Canada.

Good to know

Low season

February

High season

August

Cheapest flight

$403
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Baltimore to Bilbao

When to book flights from Washington, D.C. to Bilbao

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Bilbao based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to Bilbao

  • What is the cheapest flight from Washington, D.C. to Bilbao?

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Bilbao was $403 for a one-way ticket and $573 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Bilbao?

    Yes, you’ll need a passport to travel to Bilbao from Washington, D.C..

  • Which airports will I be using when flying from Washington, D.C. to Bilbao?

    Washington, D.C. is served by 2 major airports and there is only 1 main airport in Bilbao. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Bilbao.

  • Which aircraft models fly most regularly from Washington, D.C. to Bilbao?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to Bilbao?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Washington, D.C. and Bilbao, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Bilbao, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Bilbao are Delta and KLM. With an average price for the route of $898 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $741 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Bilbao?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Bilbao.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Bilbao?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Bilbao?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bilbao with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Bilbao?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bilbao from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Washington, D.C. to Bilbao

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Bilbao. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to Bilbao? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 11104 reviews
8.0entertainment
7.9comfort
7.5food
8.2boarding
8.6crew
Airline reviews

Seat back monitors and outlets were dead and not working.

8.0 ExcellentCarl, Apr 2024JFK - FLL
Read more about Delta reviews

Seat back monitors and outlets were dead and not working.

Everything was great except for the seat. The backrest would not stay in the upright position.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

Flight delayed about 2 hrs so it made it a VERY late night

The crew, food, and entertainment were all good. But my screen had some sort of bug where if I turned it off, it would turn back on after 2-5 minutes. At full brightness. It made it very hard to get any shut-eye on the overnight flight. Also, the older Boeing plane, while nicely cared for (and no doors fell off 😅👏) doesn't have the nice air quality of newer planes. So I felt a bit greasy by the time we landed in Sweden.

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

Worst flight in my life. Only was scheduled for a 45 min flight to get our connection flight. It was late by 40 minutes and we missed our connection. Delta was totally useless trying to help and unable to get my family on the next flight because they overbooked it Thus had to get a hotel at my expense and lost a day at Disney as a result. Cost me about a $1000 if you add 2 hotels meals shuttles etc to get thru the day Awful customer service by Delta in Detroit totally useless people

The experience was good and the flight departed on time and landed early

The flight was delayed but we got to our final destination.

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

No in flight entertainment, gate employees were very quick and impatient, plane was uncomfortable

Every experience was good except for the lack of comfort in those economy seats. I never had knee pain until that flight. Those seats are uncomfortable.

I bought internet for the flight. Don’t waste your money. I wasn’t able to download a 1 Mb file from Google Docs during a 3-4 hr period. You can only use WhatsApp and email if you are willing to wait.

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

Wasn’t very crowded. Seamless processes. No issues traveling with two little kids.

Kayak, the site I went through to book our flight, sent very unclear emails about flight changes. Kayak was incredibly unhelpful in their communications with me about this, promising to work on resolving the issue, and failing to do so. As a result, I needed to get a hotel in Brussels and am now in the process of trying to get reimbursed. On the other hand, the flight personnel in Brussels were very helpful, taking time to look into the issue and determine if they could help. I am very grateful for them and have no problems with the airline. For Kayak, however, I will never use it again and will never recommend it to anyone, and will even discourage people who consider going through that site. My worst experience ever....

My interaction with the flight attendent Eve was horrible. I was seated in 3F and was blown away watching her repeatedly skip me as she took other customer orders for lunch...she took the customer next to me but skipped me, then took everyone's order around me (in front of and behind me) . After she had taken every customer's orders to include those behind me, she came to me and said we are out of everything except one last item. I was mortified, in that, I am a 1k flyer, had pre-ordered AND as an African American could only assume why she repeatedly skipped me...mortified. no words

I like the team but I don't like the food you provided with money. I want free food and free water.

An average flight experience. For our transatlantic portion, they provided a main meal and two snacks. However, the food was not very tasty and the drinks far too small and infrequent for such a long flight. The regrettable part of the flight was that the toilets were extremely filthy. I feel this is unacceptable.

Both flights were delayed. I lost my connection on the way back. No voucher or anything was givenx I had business ticket and no support to make it on time. I got to the door running 5 min after they close. Food really bad. Breakfast in business was worst that I what I remember in economy. Even though I have accumulated many miles, I don’t think Inwill keep buying Iberia. I am a frequent business traveler.

The food is really eco only level. Breakfast was shameful. I am considering to stop flying with Iberia. Business prices are as expensive as other companies with much better service.

I called prior to flying to confirm our baggage allowance which was 5 bags. On our outbound flight thee were no problems. On the return flight we were charged for each bag totaling $400! We are working with customer service to resolve the issue.

Why no entertainment? Also water should be free, it is basic human right.

Late boarding. Delayed departure leading to rushed connection at Madrid Barajas. Not necessarily Iberia's fault but delay loading cargo didn't help.

I can’t comment on food as it was necessary to buy it. No entertainment.

Took too long to tak off but besides that it was good

They made my flight a disaster they had me pay for bags that I already paid for through Iberia airlines and the hostesses were super mean and racist they just turned my vacation to a total nightmare and disappointment in fact they even had me rethink even no to go to morroco ever again even if my whole stay at the country was so nice and fun and perfect but anything at the airport and with the airline was a disaster do not recommend will never take a flight with them

Disastrous boarding. Entered air bridge only to descend stairs and enter a bus. Plane had insufficient storage, was old and chair recline was damaged. Air stewardess was sullen.

Perfect although it took an hour to board the plane but other than that it was great

The flight crew was good, the flight itself was quick and comfortable

Boarding was late by 30 min due to a bus missing to take us to the plane... And then the flight was delayed by about 90 minutes, in a 60 min flight

The quality of the aircraft and the professionalism of TAP's staff were perfect. The quality of vegan meals can be hit or miss depending on the airline and the city of departure; on this flight, our vegan meals were quite good. The boarding process for the connecting flight in Lisbon could have been organized a bit better, but it did not spoil our overall experience with TAP, which was excellent. I'd definitely recommend TAP to others.

We liked the crew. They were competent, professional and friendly. The only big negative was our departure was delayed several times and the airport staff did not communicate what the problems were and what we should expect.

O comissário não nos serviu bebida no jantar. Quando voltou somente serviu água.

Airline attendant never walks along the isle to check if everyone is ok. The food is worst I’ve experienced. Chicken pasta is very salty while the fish is bland and over-cooked. Only two toilets for the entire economy section.

Pros: "Food service was very good - and the crew kept going even after we hit turbulence. I'd already been served, but I know from past experience with other airlines that there's nothing worse than smelling the hot food and being told that service is being discontinued,,,,while you're now hungry"
Cons: "Lisbon airport was stressful, perhaps more guidance before releasing us into the melee. I found an Air Portugal email about Lisbon Airport just now"
Cons: "The clarity about baggage fees, really unclear and very expensive."

I dropped my wallet under my seat on this flight with all of my money and credit card. I requested to be able to go back and retrieve it but Lufthansa denied my request. I went to the Customer Services and they called Lost and Found but I was told nothing found would be turned in until around 12:00pm. My next flight was leaving so I was unable to check to see if my wallet was turned in. I will never fly with Lufthansa again.

My concern is with Flight: 441 IAH-FRA I was very cramped in my seat and the person in front of me was reclined. I pulled my wallet out of my purse and when finished I did my best to cram it back into my purse. Our flight was very delayed and we were rebooked twice and lots of airport time. As I got off the flight I noticed that I had dropped my wallet( containing all my credit & debit bank cards + 240 US dollars & 240 Euros. I spoke to customer service & Lost &Found. I was denied access to look on the plane. Therefore I have been without money and given no help. Paula Bjork 503.545.6698

Dinner was good by air travel standards but breakfast was too light and heavy on carbs/sugar.

Used to love Lufthansa, but Rowe are too close together in Economy and passengers are allowed to recline their seats so far back it is impossible for those behind them to even reach for carry-on essentials during flight - except for meal service when flight attendants ask for seat backs to be raised, we can’t sleep on planes so this flight was most uncomfortable ever! Rod Rose

So far so good. I missed my flight because of the Lufthansa diversion. United helped me to figure out how to get accommodations from Lufthansa for my long layover. They help me book appropriate onward flight.

This flight space was way better than our international flight. Efficient boarding and comfortable

Horrible crowding on the seats, headphones provided did not fit or work in the entertainment center, seriously the most uncomfortable flight I have taken in a LONG time. The people in front of me were literally 5 inches from my face the entire flight. Did they change their seats recently? I remember it being tight but wow this was a whole new level. Also I am a 5'3" small woman so I can't even imagine a larger person dealing with that for 11 hrs.

Seat controls of lights were broken, and only 1 of the 2 seat TVs ever worked on the long flight. On the short flight there were no USB connections, on the long one they were difficult to access. Part of my meal was frozen, though the hot portion was good.

Lufthansa fails at mentioning no luggage when booking through points. We had to pay added fees to take checked bags to Europe for 2 weeks. The staff at check in were not helpful at all. told us "if we don't like it, then book another flight". Food was bad, they ran out of half the options. Vegetarian was terrible. The flight crew was nice, and tried to make it work ok.

Always a pleasure to deal with United's helpful and knowledgeable staff

Book cheap flights from Washington, D.C. to Bilbao

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Bilbao found on KAYAK in the last 72 hours.
7/13Sat
2 stops
31h 20mBWI-BIO
$403
5/31Fri
2 stops
54h 50mIAD-BIO
$431
5/31Fri
3 stops
32h 25mIAD-BIO
$440
7/13Sat
3 stops
29h 50mBWI-BIO
$452
7/13Sat
1 stopTAP AIR PORTUGAL
20h 10mIAD-BIO
$480
7/1Mon
2 stops
20h 10mBWI-BIO
$503
7/13Sat
2 stopsAir Canada
32h 10mDCA-BIO
$551
7/1Mon
1 stopTAP AIR PORTUGAL
18h 00mIAD-BIO
$641
5/31Fri
1 stopIberia
29h 45mIAD-BIO
$697
7/1Mon
2 stopsDelta
15h 54mDCA-BIO
$702

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Last minute flights from Washington, D.C. to Bilbao

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Bilbao that are departing in the next 10 days.
4/23Tue
multi-stopTAP AIR PORTUGAL
12h 25mIAD-BIO
5/3Fri
multi-stopTAP AIR PORTUGAL
14h 20mBIO-IAD
$737
4/23Tue
multi-stopSWISS
28h 50mIAD-BIO
5/2Thu
multi-stopSWISS
13h 50mBIO-IAD
$929
4/23Tue
multi-stopLufthansa
13h 30mIAD-BIO
5/8Wed
multi-stopLufthansa
13h 50mBIO-IAD
$933
4/23Tue
multi-stopSWISS
28h 50mIAD-BIO
5/5Sun
multi-stopSWISS
12h 45mBIO-IAD
$979
4/23Tue
multi-stopLufthansa
13h 30mIAD-BIO
5/4Sat
multi-stopLufthansa
13h 50mBIO-IAD
$983
4/23Tue
multi-stopSWISS
15h 05mIAD-BIO
5/3Fri
multi-stopSWISS
13h 45mBIO-IAD
$988

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Flights to Bilbao

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Bilbao (BIO)Spain

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