$527 Cheap Flights from Washington (IAD) to Basel (BSL)

View $527 flight on Sun, Mar 29, 2026Opens in a new window

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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Washington to Basel (IAD-BSL)

Prices were available within the past 7 days and start at $527 for one-way flights and $610 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Tue, Mar 10 - Fri, Mar 20
IAD
Washington
BSL
Basel
$610 Roundtrip, found 4 days ago
$610
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Tue, Mar 10 from Washington to Basel, returning Fri, Mar 20, priced at $610 found 4 days ago
Turkish Airlines
Sun, Mar 1 - Wed, Apr 1
IAD
Washington
BSL
Basel
$630 Roundtrip, found 4 days ago
$630
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Sun, Mar 1 from Washington to Basel, returning Wed, Apr 1, priced at $630 found 4 days ago
Turkish Airlines
Fri, Oct 24 - Thu, Oct 30
IAD
Washington
BSL
Basel
$650 Roundtrip, found 4 days ago
$650
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Fri, Oct 24 from Washington to Basel, returning Thu, Oct 30, priced at $650 found 4 days ago
Turkish Airlines
Tue, Dec 9 - Fri, Dec 19
IAD
Washington
BSL
Basel
$660 Roundtrip, found 4 days ago
$660
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Tue, Dec 9 from Washington to Basel, returning Fri, Dec 19, priced at $660 found 4 days ago
Turkish Airlines
Wed, Oct 29 - Sat, Nov 22
IAD
Washington
BSL
Basel
$670 Roundtrip, found 3 days ago
$670
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Wed, Oct 29 from Washington to Basel, returning Sat, Nov 22, priced at $670 found 3 days ago
Turkish Airlines
Sun, Nov 30 - Sun, Dec 7
IAD
Washington
BSL
Basel
$690 Roundtrip, found 5 days ago
$690
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Sun, Nov 30 from Washington to Basel, returning Sun, Dec 7, priced at $690 found 5 days ago
British Airways
Tue, Feb 10 - Tue, Mar 10
IAD
Washington
BSL
Basel
$721 Roundtrip, found 6 days ago
$721
Roundtrip
found 6 days ago
Select British Airways flight, departing Tue, Feb 10 from Washington to Basel, returning Tue, Mar 10, priced at $721 found 6 days ago
Lufthansa
Mon, Dec 8 - Wed, Dec 17
IAD
Washington
BSL
Basel
$722 Roundtrip, found 6 days ago
$722
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Mon, Dec 8 from Washington to Basel, returning Wed, Dec 17, priced at $722 found 6 days ago
Austrian Airlines
Wed, Apr 1 - Wed, Apr 8
IAD
Washington
BSL
Basel
$728 Roundtrip, found 4 days ago
$728
Roundtrip
found 4 days ago
Select Austrian Airlines flight, departing Wed, Apr 1 from Washington to Basel, returning Wed, Apr 8, priced at $728 found 4 days ago
Air Canada
Tue, Mar 10 - Fri, Mar 20
IAD
Washington
BSL
Basel
$731 Roundtrip, found 4 days ago
$731
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Mar 10 from Washington to Basel, returning Fri, Mar 20, priced at $731 found 4 days ago

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to EuroAirport Airport (BSL) cost?
Grab a cheap one-way flight from $527 or cheap return flight from $610 from Washington Dulles Intl. Airport (IAD) to EuroAirport Airport (BSL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to EuroAirport Airport (BSL)?
March is the least expensive month to fly from IAD to BSL. Avoiding peak travel times is often the key to finding better deals on flights.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to EuroAirport Airport (BSL)?
To find the cheapest airline that'll fly you from IAD to BSL, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Washington Dulles Intl. Airport (IAD) to EuroAirport Airport (BSL)?
There are no daily nonstop flights from Washington Dulles Intl. Airport (IAD) to EuroAirport Airport (BSL). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from IAD to BSL?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a number of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to EuroAirport Airport (BSL)?
To avoid potential delays on the Washington Dulles Intl. Airport (IAD) to EuroAirport Airport (BSL) route, aim to fly before 3 PM. Flights after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to EuroAirport Airport (BSL) last-minute?
Booking your ticket from IAD to BSL shortly before your trip is usually more expensive. But if you're flexible with your travel dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book an IAD to BSL flight and hotel package?
You'll typically save money by booking an IAD to BSL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've chosen your preferred accommodations and flights, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to EuroAirport Airport (BSL)?
Typically, you can modify or cancel your IAD to BSL flight. However, there may be additional fees, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need more details, visit our Customer Service portal.

Travel information

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
EuroAirport
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, KLM, Lufthansa, Turkish Airlines, United
Roundtrip price
$610
Distance
4098 mi

Book with confidence

Book with confidence

Washington to Basel Flights

The cheapest times to fly from Washington to Basel

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

 

The best time to book a flight from Washington to Basel

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

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 Basel in 2025. You can also book with separate airlines for your outbound and return journeys, from $527 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 Basel 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 Basel 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.

 

Washington to Basel Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.