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Dulles Intl

$451+ Cheap flights from Basel EuroAirport Swiss (BSL) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — IAD
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from Basel to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Basel (BSL) to Dulles Intl (IAD). 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 April 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$451
(Expedia)

Popular in

July

Cheapest in

January

Average price

$590
Provider with most accurate pricing for Basel EuroAirport Swiss-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Basel EuroAirport Swiss-Washington, D.C. Dulles Intl flights.
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From Basel EuroAirport Swiss to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Basel to Dulles Intl

Cheapest flights from Basel to Dulles Intl
Explore the most affordable flight options available from Basel to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Iberia deal was found by Cheapflights users on 4/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/812:15 pmBSL - IAD
1 stop13h 50mBritish Airways
Sat 5/1710:45 pmIAD - BSL
1 stop13h 40mBritish Airways
Deal found 4/29$451
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2311:45 amBSL - IAD
1 stop14h 20mAmerican Airlines
Mon 5/2610:40 pmIAD - BSL
1 stop14h 20mAmerican Airlines
Deal found 4/29$484
This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/22:15 pmBSL - IAD
1 stop11h 50mLufthansa
Mon 7/146:10 pmIAD - BSL
1 stop13h 30mLufthansa
Deal found 4/29$518
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 7/29:45 amBSL - IAD
2 stops27h 19mUnited Airlines
Mon 7/148:30 amIAD - BSL
2 stops18h 40mUnited Airlines
Deal found 4/29$525
This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 5/232:25 pmBSL - IAD
1 stop31h 10mDelta
Mon 5/2612:20 pmIAD - BSL
2 stops15h 10mDelta
Deal found 4/29$557
This Austrian Airlines deal was found by Cheapflights users on 4/29. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/210:20 amBSL - IAD
2 stops33h 45mAustrian Airlines
Mon 7/145:25 pmIAD - BSL
1 stop20h 20mAustrian Airlines
Deal found 4/29$590
This Trip.com deal was found by Cheapflights users on 4/29. 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.
Fri 5/236:55 amBSL - IAD
2 stops42h 25mMultiple Airlines
Sun 5/258:30 pmIAD - BSL
2 stops20h 35mMultiple Airlines
Deal found 4/29$642
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1211:30 amBSL - IAD
2 stops15h 35mAir Canada
Sat 9/271:00 pmIAD - BSL
2 stops15h 55mAir Canada
Deal found 4/29$681
This Trip.com deal was found by Cheapflights users on 4/29. 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 5/16:55 pmBSL - IAD
1 stop22h 50mTurkish Airlines
Sat 5/101:30 pmIAD - BSL
1 stop22h 30mTurkish Airlines
Deal found 4/29$816
This KLM deal was found by Cheapflights users on 4/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/36:25 pmBSL - IAD
1 stop27h 10mKLM
Sun 8/316:30 pmIAD - BSL
2 stops13h 20mKLM
Deal found 4/29$872

Cheapflights Fare Finder

Customize your flight search to find flights from Basel to Dulles Intl 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 April 29, 2025.
Use the filters below to find and compare flights from Basel EuroAirport Swiss to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Basel

Fly to

Dulles Intl

Route

Depart

Return

Price

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Fri 5/23

11:25 am-8:05 pm

1 stop14h 40m

Washington, D.C. Dulles Intl

Sun 5/25

5:40 pm-11:20 am

1 stop11h 40m

$451

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Fri 5/23

11:45 am-8:05 pm

1 stop14h 20m

Washington, D.C. Dulles Intl

Mon 5/26

10:40 pm-7:00 pm

1 stop14h 20m

$484

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Wed 7/2

2:15 pm-8:05 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

Mon 7/14

6:10 pm-1:40 pm

1 stop13h 30m

$518

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Wed 7/2

9:45 am-7:04 am

2 stops27h 19m

Washington, D.C. Dulles Intl

Mon 7/14

8:30 am-9:10 am

2 stops18h 40m

$525

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Fri 5/23

2:25 pm-3:35 pm

1 stop31h 10m

Washington, D.C. Dulles Intl

Mon 5/26

12:20 pm-9:30 am

2 stops15h 10m

$557

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Wed 7/2

10:20 am-2:05 pm

2 stops33h 45m

Washington, D.C. Dulles Intl

Mon 7/14

5:25 pm-7:45 pm

1 stop20h 20m

$590

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Fri 5/23

6:55 am-7:20 pm

2 stops42h 25m

Washington, D.C. Dulles Intl

Sun 5/25

8:30 pm-11:05 pm

2 stops20h 35m

$642

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Fri 9/12

11:30 am-9:05 pm

2 stops15h 35m

Washington, D.C. Dulles Intl

Sat 9/27

1:00 pm-10:55 am

2 stops15h 55m

$681

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Sun 8/3

6:25 pm-3:35 pm

1 stop27h 10m

Washington, D.C. Dulles Intl

Sun 8/31

6:30 pm-1:50 pm

2 stops13h 20m

$872

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Sat 8/23

9:20 pm-10:10 pm

1 stop30h 50m

$538

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 15 results
1
2

Compare providers for flights from Basel to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Basel to Dulles Intl in April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Basel EuroAirport Swiss-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Basel EuroAirport Swiss-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Basel EuroAirport Swiss-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Basel EuroAirport Swiss-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Basel EuroAirport Swiss-Washington, D.C. Dulles Intl Airport 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 Basel to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Basel 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.

Cheapflights Insights

Everything you need to know about your flight from Basel EuroAirport Swiss to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated April 29, 2025.
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Turkish Airlines
7.3
Good
3,788 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Basel to Dulles Intl. 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 from for flights from Basel to Washington, D.C. Dulles Intl?

    Most people fly from Basel EuroAirport Swiss (BSL) if they book a flight from Basel to Washington, D.C. Dulles Intl. On average, EuroAirport Swiss has 0 outbound flights to 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.

  • What are the cheapest airlines flying from Basel EuroAirport Swiss to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on British Airways is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $451. Additional round-trip tickets that might be worth considering are offered by American Airlines and Lufthansa, with the lowest prices starting at $484 and $518, respectively. British Airways is priced at 25% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Basel EuroAirport Swiss to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airlines for a one-way flight from Basel EuroAirport Swiss to Washington, D.C. Dulles Intl Airport are British Airways ($574), Lufthansa ($623), and American Airlines ($683).

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Basel EuroAirport Swiss to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Basel EuroAirport Swiss to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Basel EuroAirport Swiss to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Basel EuroAirport Swiss?

Book flights to Basel EuroAirport Swiss if you plan to visit one of these locations
Alexandria
Arlington
Woodbridge
Tysons
Fairfax
Springfield
Rockville
Fredericksburg
Silver Spring
Gaithersburg
Linthicum Heights
Falls Church
Laurel
Easton
Towson
Herndon
Sterling
Bowie
National Harbor
Oxon Hill

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Alternative routes for Basel to Dulles Intl

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