$329 Cheap Flights from Washington (IAD) to Bilbao (BIO)
Popular airlines from Washington Dulles Intl. Airport (IAD) to Bilbao Airport (BIO)
British AirwaysBritish Airways
IberiaIberia
LufthansaLufthansa
TAP PortugalTAP Portugal
Turkish AirlinesTurkish Airlines
Air CanadaAir Canada
Swiss International Air LinesSwiss International Air Lines
Cheap Flights from Washington to Bilbao (IAD-BIO)
Alternative airports near Bilbao
Prices were available within the past 7 days. Prices and availability are subject to change.
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Washington (IAD) to Bilbao (BIO) at a glance
Travel to Bilbao (BIO) from Washington Dulles International Airport (IAD) with a selection of airlines offering international long-haul routes. Compare various full-service carriers to discover the itinerary that best suits your budget, timing, and travel plans as you delve into the iconic sights and neighborhoods of Bilbao. Here, you'll find essential details for flights connecting Washington to Bilbao.
- Fastest flight duration: around 9h 45m in-flight, plus roughly 2h 30m layover with one stop
- Route distance: roughly 3,800 miles (6,120 km)
- Flights per week: around 9 departures on average
- Typical fares (one-way): economy tickets often range from $250–$980, depending on seasonality and how far ahead you book
Flights from Washington Dulles International Airport (IAD) to Bilbao Airport (BIO)
Based on the latest traveler bookings, here are the top airlines favored for flights from Washington to Bilbao, commonly selected for their one-stop service. Popular layovers include Franz Josef Strauss International Airport, MUC (approximately 3 hours), Frankfurt International Airport, FRA (around 2 hours and 45 minutes), and Schiphol Airport, AMS (about 1 hour and 45 minutes). These options allow you to balance price, total travel time, and cabin class, helping you secure the best itinerary for your journey.
- United: This full-service airline provides a comprehensive one-stop service, with one-way ticket prices generally between $280 and $980. United operates approximately 34% of flights on this route, featuring a flight duration of 9 hours and 45 minutes, and a total travel time of about 12 hours and 30 minutes, including layover time.
- Lufthansa: As a full-service carrier, Lufthansa offers one-stop journeys with one-way fares typically priced from $250 to $795. It holds around 20% of the departures on this route, with an in-flight duration of 9 hours and 45 minutes and a total travel time nearing 12 hours and 30 minutes, factoring in layover periods.
- TAP Portugal: This full-service airline features one-stop options, with one-way fares usually ranging from $250 to $570. TAP Portugal accounts for approximately 16% of departures on this route, boasting a flight time of 9 hours and 45 minutes and a total journey duration of around 12 hours and 30 minutes, including layovers.
- KLM: KLM, another full-service carrier, provides one-stop services with one-way fares typically falling between $330 and $1,095. It represents about 7% of the flight departures on this route, with a flying time of 9 hours and 45 minutes and a total journey time of roughly 12 hours and 30 minutes, including layovers.
- Iberia: This full-service airline offers one-stop service with one-way prices generally ranging from $270 to $635. Iberia accounts for nearly 7% of departures along this route, featuring a flight duration of 9 hours and 45 minutes and an overall travel time of approximately 12 hours and 30 minutes, inclusive of layover time.
Alternative route from Washington (IAD) to Bilbao (BIO)
- Washington to San Sebastian (IAD-EAS): San Sebastian Airport (EAS) is located approximately 56 miles from Bilbao Airport (BIO). One-way economy ticket prices on this route generally fall between $340 and $835, influenced by the season and how far in advance you book. Most flights involve one stop, typically connecting through Adolfo Suárez Madrid-Barajas Airport (MAD). Major airlines operating on this route include Iberia and American Airlines.
How to find the best prices for flights from Washington (IAD) to Bilbao (BIO)
Getting some of the best deals on flights from Washington to Bilbao is all about timing and flexibility. Here are some key tips to help you save:
- Best times to book and fly: cheaper fares are usually available when booking 2 to 8 weeks in advance, although most travelers tend to book at least 2 months ahead. Evening departures from 6 PM to 12 AM often provide lower prices and are quite popular, while flying on Sundays typically offers cheaper rates, even though Tuesday is the most favored travel day.
- Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
- Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
- Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
- Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
- Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.
*Members only. Savings vary and are not available on all bundles. Select hotels.
Arriving at Bilbao Airport from Washington Dulles International Airport
Bilbao welcomes travelers from Washington with a range of transport options based on price, convenience, and proximity. For departures, Washington Dulles International Airport is roughly a 40-minute drive (covering about 29 miles) from central Washington. Bilbao city center is approximately a 10-minute drive (covering about 8 miles) from Bilbao Airport, depending on traffic. Here's how to reach Bilbao efficiently:
- Hotel transfer: Transfers offer a convenient way to reach your hotel in Bilbao, with private rides that can be arranged in advance.
- Car rental: Renting a car from Bilbao Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Bilbao Airport on Expedia.
- Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
- Public transportation: From Bilbao Airport, several key transport links are conveniently accessible by car. Santutxu Station (a metro station) is located about 6.3 miles from the airport, while both Bilbao Seaport (a seaport) and Bilbao (YJI-Bilbao-Abando Train Station) (a train station) are each about 6.7 miles away, making it easy to reach these destinations.
Washington to Bilbao Flights
The cheapest times to fly from Washington to Bilbao
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Bilbao are during the month of February. You can find some of the cheapest flights from Washington to Bilbao with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Washington to Bilbao
Sunday is one of the best days to book for cheap flights from Washington to Bilbao: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Washington to Bilbao
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Bilbao in 2026. You can also book with separate airlines for your outbound and return journeys, from $329 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Bilbao flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Bilbao airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
Frequently Asked Questions
How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO) cost?
You can find cheap one-way flights from $329 and cheap return flights $644 Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO) with Expedia. One-way flights typically cost between $462 and $4637, and return flights often range between $666 and $6046. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO) ticket fares go up or down.
*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO)?
The cheapest month to fly from IAD to BIO is February when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO)?
Enter IAD to BIO and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO)?
Virgin Atlantic is one of the cheapest airlines offering connecting flights from Washington Dulles Intl. (IAD) to Bilbao (BIO) with return tickets starting from around $500.81 with a layover in Heathrow (LHR). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO)?
To find a cheap flight from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from IAD to BIO. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO)?
Flights from IAD to BIO with one stop typically take around 12 hours 50 minutes, covering approximately 3,759 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO)?
You can fly business class between IAD and BIO. Airlines that offer business class service on this route include:
- Turkish Airlines
- Iberia
- United Airlines
- American Airlines
- Virgin Atlantic
- British Airways
- Swiss International Air Lines
- Air France
- KLM
- Lufthansa
First class cabins are available on:
- Lufthansa
- Swiss International Air Lines
- United Airlines
How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO) flight and hotel package?
Securing a Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO) Bilbao Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO)?
If you booked your Washington, DC (IAD-Washington Dulles Intl.) to Bilbao (BIO) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.
Travel information
Origin airport | Washington Dulles Intl. Airport |
|---|---|
Destination airport | Bilbao Airport |
Distance | 3,758 miles away |
Airlines serving | British Airways, Iberia, Lufthansa, TAP Portugal, Turkish Airlines, Air Canada, Swiss International Air Lines, Austrian Airlines, Brussels Airlines, Finnair, American Airlines, Aer Lingus, KLM, United, Delta, SAS, Air France, Royal Air Maroc |
Popular airline | British Airways |
Roundtrip price | $644 |