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$247+ Cheap flights from Dulles Intl (IAD) to Basel EuroAirport Swiss (BSL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BSL
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Cheap flight deals from Dulles Intl to Basel

Cheapest flights from Dulles Intl to Basel
Explore the most affordable flight options available from Dulles Intl to Basel. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.

This Turkish Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:15 pm
IAD
-
BSL
1 stop14h 30m
Turkish Airlines
Sun 9/137:10 pm
BSL
-
IAD
1 stop22h 20m
Turkish Airlines
Deal found 7/24$650
This lastminute.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:15 pm
IAD
-
BSL
1 stop14h 30m
Turkish Airlines
Thu 11/510:45 am
BSL
-
IAD
1 stop32h 00m
Turkish Airlines
Deal found 7/22$656
This Turkish Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:40 pm
IAD
-
BSL
1 stop14h 35m
Turkish Airlines
Sat 10/2410:40 am
BSL
-
IAD
1 stop15h 05m
Turkish Airlines
Deal found 7/22$690
This Trip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:20 pm
IAD
-
BSL
1 stop30h 30m
Turkish Airlines
Wed 11/46:10 pm
BSL
-
IAD
1 stop32h 15m
Turkish Airlines
Deal found 7/24$694
This Turkish Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/239:40 pm
IAD
-
BSL
1 stop14h 35m
Turkish Airlines
Mon 10/510:40 am
BSL
-
IAD
1 stop15h 05m
Turkish Airlines
Deal found 7/25$699
This Turkish Airlines deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:45 pm
IAD
-
BSL
1 stop14h 30m
Turkish Airlines
Sat 10/107:10 pm
BSL
-
IAD
1 stop22h 25m
Turkish Airlines
Deal found 7/20$700
This Bravofly deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/231:15 pm
IAD
-
BSL
1 stop14h 30m
Turkish Airlines
Tue 9/87:10 pm
BSL
-
IAD
1 stop22h 20m
Turkish Airlines
Deal found 7/25$706
This CheapOair deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:40 pm
IAD
-
BSL
1 stop30h 05m
Turkish Airlines
Sun 9/137:10 pm
BSL
-
IAD
1 stop22h 20m
Turkish Airlines
Deal found 7/23$760
This Mytrip deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:30 pm
IAD
-
BSL
2 stops14h 30m
Multiple Airlines
Mon 8/311:25 pm
BSL
-
IAD
2 stops31h 45m
Multiple Airlines
Deal found 7/20$783
This British Airways deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/279:45 pm
IAD
-
BSL
1 stop15h 40m
British Airways
Mon 1/44:00 pm
BSL
-
IAD
1 stop29h 40m
British Airways
Deal found 7/23$807
This Delta deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2812:25 pm
IAD
-
BSL
2 stops19h 20m
Delta
Thu 10/82:25 pm
BSL
-
IAD
1 stop31h 10m
Delta
Deal found 7/20$815
This United Airlines deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:35 pm
IAD
-
BSL
1 stop20h 00m
United Airlines
Wed 10/76:10 am
BSL
-
IAD
2 stops18h 50m
United Airlines
Deal found 7/20$816

Find flight deals from Dulles Intl to Basel

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Basel (BSL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 25, 2026.

Most trusted provider

Cheapfaremart
1 star

Round-trip from

$650
(Turkish Airlines)

One-way from

$247
(Kiwi.com)
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Basel EuroAirport Swiss flights.
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From Washington, D.C. Dulles Intl to Basel EuroAirport Swiss
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One-way flight from Washington, D.C. Dulles Intl to Basel EuroAirport Swiss
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Basel that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 25, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Basel EuroAirport Swiss that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

Fri 10/16

9:40 pm-9:45 am

1 stop30h 05m

Basel EuroAirport Swiss

Sat 10/24

10:40 am-7:45 pm

1 stop15h 05m

$690

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

Wed 9/23

1:15 pm-9:45 am

1 stop14h 30m

Basel EuroAirport Swiss

Tue 10/6

7:10 pm-11:30 am

1 stop22h 20m

$699

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

Fri 10/16

9:40 pm-9:45 am

1 stop30h 05m

Basel EuroAirport Swiss

Thu 10/22

10:40 am-7:45 pm

1 stop15h 05m

$700

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

Sat 9/26

1:20 pm-9:45 am

1 stop14h 25m

Basel EuroAirport Swiss

Fri 10/9

10:40 am-7:50 pm

1 stop15h 10m

$700

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

Fri 10/16

1:15 pm-9:45 am

1 stop14h 30m

Basel EuroAirport Swiss

Sun 10/18

10:40 am-11:30 am

1 stop30h 50m

$700

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

Fri 10/16

9:40 pm-9:45 am

1 stop30h 05m

Basel EuroAirport Swiss

Mon 10/19

10:40 am-7:45 pm

1 stop15h 05m

$700

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

Fri 10/16

1:15 pm-6:15 pm

1 stop23h 00m

Basel EuroAirport Swiss

Wed 10/21

10:40 am-7:45 pm

1 stop15h 05m

$700

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

Sun 8/23

1:15 pm-9:45 am

1 stop14h 30m

Basel EuroAirport Swiss

Tue 9/8

7:10 pm-11:30 am

1 stop22h 20m

$706

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

Mon 9/28

10:15 am-9:55 am

2 stops17h 40m

Basel EuroAirport Swiss

Tue 10/6

10:15 am-3:35 pm

1 stop11h 20m

$815
Quickest round-trip

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

Tue 10/13

6:25 pm-1:45 pm

2 stops13h 20m

Basel EuroAirport Swiss

Thu 10/22

6:30 am-3:35 pm

1 stop15h 05m

$819

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 22 resultsSorted by cheapest first
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  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Basel EuroAirport Swiss flights, Cheapflights users trust Cheapfaremart the most. Cheapfaremart has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Basel EuroAirport Swiss flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Basel

Have a flexible travel schedule? Discover the best time to fly to Basel from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Basel. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Basel from Washington, D.C. Dulles Intl?

    Most people fly into Basel EuroAirport Swiss (BSL) if they book a flight to Basel from Washington, D.C. Dulles Intl. On average, EuroAirport Swiss has 0 inbound flights from Washington, D.C. Dulles Intl per day from 0 airlines. Basel EuroAirport Swiss is conveniently located just 3.6 mi from Basel’s city center.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Basel EuroAirport Swiss?

    Airlines like Turkish Airlines fly from Washington, D.C. Dulles Intl Airport to Basel EuroAirport Swiss in about 30h 05m. The time it takes to get you to your destination can typically vary by up to . Washington, D.C. Dulles Intl Airport and Basel EuroAirport Swiss are separated by a distance of 4097 mi.

  • Can I find deals for flights from Dulles Intl to Basel that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Basel flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Basel?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Basel.

  • Can I find deals for business class flights from Dulles Intl to Basel?

    Yes. Cheapflights offers flight deals from Dulles Intl to Basel by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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