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WAS - BIO

$622 Find cheap flights from Washington, D.C. to Bilbao

This is the cheapest round-trip 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 8/5. 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
Mon 6/10
Mon 6/17

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 43,156,178 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
12:00 pm - 11:05 amDCA-BIO
17h 05m2 stops
7:10 am - 6:46 pmBIO-DCA
17h 36m2 stops
$622Delta
Find Deal
Mon, Aug 5 - Tue, Aug 20
5:30 pm - 4:30 pmDCA-BIO
17h 00m2 stops
7:10 am - 6:46 pmBIO-DCA
17h 36m2 stops
$665Delta
Find Deal
Sun, Aug 11 - Mon, Aug 19
10:20 pm - 11:25 pmIAD-BIO
19h 05m1 stop
7:35 am - 7:50 amBIO-IAD
30h 15m2 stops
$757United Airlines
Find Deal
Mon, Aug 5 - Tue, Aug 20
10:20 pm - 11:25 pmIAD-BIO
19h 05m1 stop
6:55 pm - 4:05 pmBIO-IAD
27h 10m1 stop
$788Lufthansa
Find Deal
Mon, Aug 5 - Sun, Aug 18
10:20 pm - 11:25 pmIAD-BIO
43h 05m2 stops
6:35 pm - 4:05 pmBIO-IAD
27h 30m2 stops
$816Lufthansa
Find Deal
Mon, Aug 5 - Sun, Aug 18
5:35 pm - 5:35 pmIAD-BIO
18h 00m1 stop
12:30 pm - 3:20 pmBIO-IAD
32h 50m1 stop
$818TAP AIR PORTUGAL
Find Deal
Mon, Aug 12 - Mon, Aug 19
10:20 pm - 5:50 pmIAD-BIO
13h 30m1 stop
6:45 am - 4:05 pmBIO-IAD
15h 20m1 stop
$834United Airlines
Find Deal
Wed, Jul 24 - Wed, Jul 31
5:40 pm - 11:45 amIAD-BIO
12h 05m1 stop
12:30 pm - 3:20 pmBIO-IAD
32h 50m1 stop
$851TAP AIR PORTUGAL
Find Deal
Sun, Aug 11 - Mon, Aug 19
12:29 pm - 8:30 amDCA-BIO
14h 01m2 stops
1:40 pm - 11:03 pmBIO-DCA
15h 23m2 stops
$1,010Iberia
Find Deal
Wed, Jul 24 - Wed, Jul 31
5:30 pm - 12:55 pmDCA-BIO
13h 25m2 stops
1:40 pm - 11:03 pmBIO-DCA
15h 23m2 stops
$1,219Iberia
Find Deal
Sun, Jul 21 - Wed, Jul 31

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 Friday is the most expensive. Flying from Bilbao back to Washington, D.C., the best deals are generally found on Monday, 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 $552 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,241 and $1,070 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 75 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 $622 on Delta, followed by United Airlines ($757). One-way flight deals have also been found from as low as $718 on United Airlines and from $727 on Air Canada.

Good to know

Low season

February

High season

August

Cheapest flight

$622
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Reagan Washington National Airport 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 $636 for a one-way ticket and $622 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, SkyTeam, and oneworld 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 $841 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 $730 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 10751 reviews
8.2Boarding
8.6Crew
7.4Food
8.0Entertainment
7.9Comfort
Airline reviews

Boarding was chaotic. I didn’t finish dinner because I went to bed early. Breakfast omelet was overcooked and tasteless but croissant was better than usual. Plane was dirty—crumbs in every seam and lavatory was poorly maintained (paint peeling, etc.) and toilet paper had not been refreshed before takeoff. No cubby for storage in first and seat was narrow.

4.0 OkayPatricia, May 2024DTW - CDG
Read more about Delta reviews

Boarding was chaotic. I didn’t finish dinner because I went to bed early. Breakfast omelet was overcooked and tasteless but croissant was better than usual. Plane was dirty—crumbs in every seam and lavatory was poorly maintained (paint peeling, etc.) and toilet paper had not been refreshed before takeoff. No cubby for storage in first and seat was narrow.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

West Jet has a horrible boarding process and the seats have no cushion.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Food was terrible Not many options Stewards dont care Delay

The ride was good but no food ot entertainment hence, it was just over an hour flight.

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.

Seats comfortable on economy plus and attendants very helpful. Food was ok. Bathrooms needed servicing.

Good food, prompt and timely flight, good on-board personnel

Thankful for 2-4-2 economy seating. Food was ok. Free beer & wine in economy was nice. Served hot dinner, mud- flight snack and pre-arrival ham sandwich. Seat with pillow & blanket. Reasonable movie options. Overall, a good experience. IBERIA APP is terrible terrible terrible.... needs to get upgraded to equivalent of TAP Airlines App. No option to bid or request an upgrade. Very disappointing.

My luggage did not get to my Miami destination/home. I am waiting for it 24 hours later.

The only comment I have is why do you sell snacks on board? They should be free. When we take domestic flights here in US, our snacks are free. Also, please communicate with me in English. I received so many emails way before my flight that were in Spanish that I had to ask my son to interpret for me. You should be WELL AWARE if the customers you are communicating speak the language, it does mean that we speak and understand Spanish because we are traveling to Spain, NOT NECESSARILY! Thank you!

Flight was delayed by well over an hour. Communication was terrible.

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 thought Miami's airport was very disorganized during the Boarding.

Very efficient boarding - other airlines could learn from them. Friendly, efficient crew. Red eye flight, so dinner meal was irrelevant. Breakfast could have been more substantial. Seats reasonably comfy.

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.

Everything could be better. The plain was in Orlando for 3 hours prior to boarding. After boarding all the passengers they found out that plane has a mechanical problem. After an hour the problem was solved, the pilot comes on and states, (We have to go back to the gate and take on more fuel!) Are you kidding me???? Who they have for pilots, Boy scouts?? I barely made my connecting flight to Vienna, but my suitcase did not. I'm still waiting for it, in Gyor, Hungary. Am I having fun yet?? Other passenger were in the same binned. I travelled all over the world both for business and pleasure with all types of airlines. By far of all the carriers I travelled with, Discover is the worst. I'm contemplating to bight the bullet and go back to the US with a different carrier. For International flights, the seats are made for little people. The person in front of me had his seat reclined the whole way, I felt like he was sitting in my lap. For closing, I would not let my dog travel with Discover, yet alone recommend it to an other person. Does it sound like I'm frustrated, Think about having to travel back to the US with them. I'm sure I'll not hear back from you, because nobody wants to hear about bad news, but with all the hype Discover puts out there about their services, nothing could be further from the truth. Joseph A. Nagy

Only problem we experienced was not anything to do with Lufthansa. When changing planes in Frankfurt we spent over an hour on passport control line. Lufthansa did a marvelous job on everything from keeping me informed via texts, to terrific cabin crew.

Bordón could be bettet if the company say before boarding the order of the different groups.

Checked in is easy and it was a smooth flight from LAX to Munich

There is no recline on flight from DFW to FRA. Middle eastern airways provide better recline option for the same class. FRA to Bangalore has better recline option. I bid 100$ for premium economy, my request was declined. But staff handled it without issues.

The Lufthansa part was wonderful. The short connection flight was not.

German crew were very kind. Food was okay but can be better, especially bread was not good, Garbage collection was very poor.

Awful Terrible staff poor communication Flight delayed for an hour with no apology or explanation and no help re missing connecting flight. Resulted in a 7 hour layover at Munich waiting for another connecting flight. Only 15 euros refreshment voucher given. Will not fly Lufthansa again

Both flights were late for what appeared to be the airline’s not having the planes ready. Arrived over 6 hours late.

It was a busy flight and all the crew were very helpful and gracious

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.
6/15Sat
3 stops
25h 52mBWI-BIO
$636
6/15Sat
2 stops
36h 16mBWI-BIO
$637
6/15Sat
3 stops
26h 10mIAD-BIO
$690
6/15Sat
2 stopsUnited Airlines
37h 27mIAD-BIO
$718
6/15Sat
2 stopsAir Canada
32h 10mDCA-BIO
$727
6/15Sat
1 stop
18h 30mBWI-BIO
$731
6/15Sat
1 stopUnited Airlines
13h 30mIAD-BIO
$750
6/14Fri
3 stops
23h 55mIAD-BIO
$1,311
6/15Sat
3 stops
24h 00mDCA-BIO
$1,939

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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.
5/14Tue
multi-stopTurkish Airlines
37h 35mIAD-BIO
5/25Sat
multi-stopTurkish Airlines
37h 45mBIO-IAD
$1,118
5/14Tue
multi-stopTurkish Airlines
37h 35mIAD-BIO
5/25Sat
multi-stopTurkish Airlines
37h 45mBIO-IAD
$1,119
5/16Thu
multi-stopTurkish Airlines
31h 20mIAD-BIO
5/28Tue
multi-stopTurkish Airlines
37h 45mBIO-IAD
$1,148
5/14Tue
multi-stopIberia
13h 25mDCA-BIO
5/25Sat
multi-stopIberia
52h 23mBIO-DCA
$1,272
5/14Tue
multi-stopIberia
13h 25mDCA-BIO
5/25Sat
multi-stopIberia
52h 23mBIO-DCA
$1,280
5/16Thu
multi-stopAmerican Airlines
13h 54mDCA-BIO
5/28Tue
multi-stopAmerican Airlines
15h 44mBIO-DCA
$1,410
5/14Tue
multi-stopDelta
15h 55mBWI-BIO
5/25Sat
multi-stopDelta
18h 22mBIO-BWI
$1,422
5/14Tue
multi-stopUnited Airlines
18h 55mIAD-BIO
5/25Sat
multi-stopUnited Airlines
20h 54mBIO-IAD
$1,439
5/16Thu
multi-stopDelta
17h 05mIAD-BIO
5/26Sun
multi-stopDelta
14h 40mBIO-IAD
$1,470
5/14Tue
multi-stopAmerican Airlines
19h 23mBWI-BIO
5/25Sat
multi-stopAmerican Airlines
18h 33mBIO-BWI
$1,794

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Flights to Bilbao

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Bilbao (BIO)Spain

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