$354 Cheap Flights from Basel (BSL) to Washington (IAD)

View $354 flight on Tue, Sep 8, 2026Opens in a new window

Popular airlines from EuroAirport Airport (BSL) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Basel to Washington (BSL-IAD)

Prices were available within the past 7 days and start at $354 for one-way flights and $617 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, Mar 30 - Sun, Apr 5
BSL
Basel
IAD
Washington
$617 Roundtrip, found 1 day ago
$617
Roundtrip
found 1 day ago
Select British Airways flight, departing Mon, Mar 30 from Basel to Washington, returning Sun, Apr 5, priced at $617 found 1 day ago
Delta
Tue, Mar 17 - Sun, Mar 22
BSL
Basel
IAD
Washington
$634 Roundtrip, found 3 days ago
$634
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Mar 17 from Basel to Washington, returning Sun, Mar 22, priced at $634 found 3 days ago
Delta
Tue, Mar 17 - Mon, Mar 23
BSL
Basel
IAD
Washington
$635 Roundtrip, found 3 days ago
$635
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Mar 17 from Basel to Washington, returning Mon, Mar 23, priced at $635 found 3 days ago
Delta
Mon, Mar 16 - Mon, Mar 23
BSL
Basel
IAD
Washington
$640 Roundtrip, found 3 days ago
$640
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Mar 16 from Basel to Washington, returning Mon, Mar 23, priced at $640 found 3 days ago
Lufthansa
Thu, Apr 9 - Wed, Jun 24
BSL
Basel
IAD
Washington
$654 Roundtrip, found 5 days ago
$654
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Apr 9 from Basel to Washington, returning Wed, Jun 24, priced at $654 found 5 days ago
Austrian Airlines
Mon, Mar 16 - Mon, Mar 30
BSL
Basel
IAD
Washington
$663 Roundtrip, found 6 days ago
$663
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Mon, Mar 16 from Basel to Washington, returning Mon, Mar 30, priced at $663 found 6 days ago
Austrian Airlines
Mon, Mar 16 - Mon, Mar 30
BSL
Basel
IAD
Washington
$666 Roundtrip, found 6 days ago
$666
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Mon, Mar 16 from Basel to Washington, returning Mon, Mar 30, priced at $666 found 6 days ago
Lufthansa
Mon, Mar 30 - Mon, Jun 22
BSL
Basel
IAD
Washington
$668 Roundtrip, found 5 days ago
$668
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Mon, Mar 30 from Basel to Washington, returning Mon, Jun 22, priced at $668 found 5 days ago
Lufthansa
Thu, Apr 9 - Wed, Jun 24
BSL
Basel
IAD
Washington
$672 Roundtrip, found 5 days ago
$672
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Apr 9 from Basel to Washington, returning Wed, Jun 24, priced at $672 found 5 days ago
Air Canada
Thu, Apr 9 - Wed, Jun 24
BSL
Basel
IAD
Washington
$677 Roundtrip, found 5 days ago
$677
Roundtrip
found 5 days ago
Select Air Canada flight, departing Thu, Apr 9 from Basel to Washington, returning Wed, Jun 24, priced at $677 found 5 days ago

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Frequently asked questions

How much does a flight from Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.) cost?
You can find cheap one-way flights from $354 and cheap return flights from $617 Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.) with Expedia. One-way flights usually range from $413 to $7037. 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 Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.) 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 Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.)?
The cheapest month to fly from BSL to IAD is March 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 Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.)?
Enter BSL to IAD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.)?
Lufthansa, Air Dolomiti and British Airways are just some of the carriers that fly from Basel (BSL) to Washington, DC (IAD). Use Expedia's flight search tool to compare airlines on this route and find our cheapest option for your trip. 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 Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.), 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 Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.)?
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 Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Basel (BSL) to Washington, D.C. (IAD) usually departs at around 5:15 AM, operated by Lufthansa. An early flight like this can help you maximize your time in the U.S. capital. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.)?
You'll usually find the most flights from EuroAirport Basel (BSL) to Washington Dulles Intl. (IAD) on a Tuesday, with around 38 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Lufthansa and Air France.
What are the most popular departure times for flights from Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.)?
The most popular departure times for flights from Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.) are in the early morning, from 6am to 9am. About 43% of passengers prefer this time window. Many major carriers, including British Airways, Swiss International Air Lines, and United, offer flights during this window. This timing works well because it helps you maximize your time in Washington upon arrival.
How long does it take to fly from Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.)?
Flights from BSL to IAD with one stop typically take around 15 hours 20 minutes, covering approximately 4,099 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 Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.)?
Business class is available on flights from BSL to IAD. Airlines that offer business class service on this route include:

  • Lufthansa
  • Air Dolomiti
  • Swiss International Air Lines
  • Air France
  • British Airways
  • KLM
  • Hop!
  • Turkish Airlines

How do I earn miles on a Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.) 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.
What airports do you fly into for Washington from EuroAirport Basel (BSL)?
From EuroAirport Basel (BSL), you can fly into Washington Dulles Intl. (IAD) to reach Washington. Some flights may connect through major hubs like Schiphol (AMS), QFB (QFB), Frankfurt Intl. (FRA) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.) 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 Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.) Fairfax County 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 Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Basel (BSL-EuroAirport) to Washington, DC (IAD-Washington Dulles Intl.) 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
EuroAirport
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada, British Airways, Turkish Airlines
Roundtrip price
$616
Distance
4098 mi

Book with confidence

Basel to Washington Flights

The cheapest times to fly from Basel to Washington

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 Basel to Washington are during the month of March. You can find some of the cheapest flights from Basel to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Basel to Washington

Sunday is one of the best days to book for cheap flights from Basel to Washington: 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 Basel to Washington

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 Basel to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $354 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 Basel to Washington 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 Basel to Washington 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.

 

Basel to Washington Flights

*Flight schedules are subject to change.

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*Available to One Key members.