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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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — IAD
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
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 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$451
(American Airlines)

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 ($63 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 15, 2025.

This American Airlines deal was found by Cheapflights users on 4/14. 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.
Sat 5/176:35 amBSL - IAD
1 stop16h 55mAmerican Airlines
Tue 5/277:25 pmIAD - BSL
1 stop17h 50mAmerican Airlines
Deal found 4/14$451
This Iberia deal was found by Cheapflights users on 4/14. 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 5/1511:40 amBSL - IAD
1 stop11h 50mBritish Airways
Fri 5/3010:40 pmIAD - BSL
1 stop18h 10mBritish Airways
Deal found 4/14$453
This Finnair deal was found by Cheapflights users on 4/14. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/3011:25 amBSL - IAD
1 stop14h 40mMultiple Airlines
Fri 6/610:40 pmIAD - BSL
1 stop13h 00mMultiple Airlines
Deal found 4/14$523
This Delta deal was found by Cheapflights users on 4/15. 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.
Thu 4/242:25 pmBSL - IAD
2 stops16h 03mDelta
Wed 5/76:30 pmIAD - BSL
1 stop12h 40mDelta
Deal found 4/15$530
This Lufthansa deal was found by Cheapflights users on 4/14. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/188:30 amBSL - IAD
1 stop11h 00mLufthansa
Thu 6/510:10 pmIAD - BSL
1 stop13h 40mLufthansa
Deal found 4/14$598
This lastminute.com deal was found by Cheapflights users on 4/14. 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 5/1510:15 amBSL - IAD
2 stops15h 24mKLM
Fri 5/305:25 pmIAD - BSL
1 stop10h 10mKLM
Deal found 4/14$646
This Austrian Airlines deal was found by Cheapflights users on 4/14. 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 10/158:25 pmBSL - IAD
2 stops24h 00mAustrian Airlines
Tue 10/216:40 pmIAD - BSL
2 stops19h 05mAustrian Airlines
Deal found 4/14$647
This United Airlines deal was found by Cheapflights users on 4/14. 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.
Thu 5/159:45 amBSL - IAD
1 stop15h 40mUnited Airlines
Fri 5/306:10 pmIAD - BSL
2 stops12h 15mUnited Airlines
Deal found 4/14$677
This TUI.com deal was found by Cheapflights users on 4/14. 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 TUI.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/152:25 pmBSL - IAD
2 stops16h 03mAir France
Mon 6/25:25 pmIAD - BSL
2 stops13h 45mAir France
Deal found 4/14$739
This Turkish Airlines deal was found by Cheapflights users on 4/14. 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.
Tue 10/1410:35 amBSL - IAD
1 stop31h 10mTurkish Airlines
Sat 10/189:40 pmIAD - BSL
1 stop30h 00mTurkish Airlines
Deal found 4/14$830
This Air Canada deal was found by Cheapflights users on 4/14. 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.
Tue 5/611:25 amBSL - IAD
2 stops15h 43mAir Canada
Fri 5/91:53 pmIAD - BSL
2 stops15h 02mAir Canada
Deal found 4/14$1,984

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 15, 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

Sat 5/17

6:35 am-5:30 pm

1 stop16h 55m

Washington, D.C. Dulles Intl

Thu 6/5

10:40 pm-7:05 pm

1 stop14h 25m

$451

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Thu 5/15

11:40 am-5:30 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

Fri 5/30

10:40 pm-10:50 pm

1 stop18h 10m

$453

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Fri 5/30

11:25 am-8:05 pm

1 stop14h 40m

Washington, D.C. Dulles Intl

Fri 6/6

10:40 pm-5:40 pm

1 stop13h 00m

$523

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Fri 5/30

10:15 am-7:42 pm

2 stops15h 27m

Washington, D.C. Dulles Intl

Fri 6/6

9:20 pm-2:10 pm

1 stop10h 50m

$530

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Sun 5/18

8:30 am-1:30 pm

1 stop11h 00m

Washington, D.C. Dulles Intl

Tue 5/27

3:25 pm-7:50 am

1 stop10h 25m

$598

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Thu 5/15

10:15 am-7:39 pm

2 stops15h 24m

Washington, D.C. Dulles Intl

Fri 5/30

5:25 pm-9:35 am

1 stop10h 10m

$646

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Thu 5/15

9:45 am-7:25 pm

1 stop15h 40m

Washington, D.C. Dulles Intl

Fri 5/30

6:10 pm-12:25 pm

2 stops12h 15m

$677

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Thu 5/15

2:25 pm-12:28 am

2 stops16h 03m

Washington, D.C. Dulles Intl

Mon 6/2

5:25 pm-1:10 pm

2 stops13h 45m

$739

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Tue 5/6

11:25 am-9:08 pm

2 stops15h 43m

Washington, D.C. Dulles Intl

Fri 5/9

1:53 pm-10:55 am

2 stops15h 02m

$1,984

BaselWashington, D.C.

BSL - IAD

BSLIAD

Basel EuroAirport Swiss

Tue 4/29

8:25 pm-2:15 pm

2 stops23h 50m

Washington, D.C. Dulles Intl

Tue 5/6

5:25 pm-9:40 am

1 stop34h 15m

$6,642

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 14 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 15, 2025.
Delta
8.0
Very good
7,918 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

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
7,918 reviews
Delta
8.0
Very good
7,918 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

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
1,323 reviews
Delta
8.0
Very good
7,918 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

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
775 reviews
Delta
8.0
Very good
7,918 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

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
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,918 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

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
8,658 reviews
Delta
8.0
Very good
7,918 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

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 American Airlines 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 British Airways and Delta, with the lowest prices starting at $453 and $530, respectively. American Airlines 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 ($581), Lufthansa ($670), and American Airlines ($917).

  • 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 $383). 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
Arlington
Alexandria
Fairfax
Tysons
Springfield
Woodbridge
Rockville
Fredericksburg
Gaithersburg
Silver Spring
Linthicum Heights
Falls Church
Laurel
Easton
Herndon
Sterling
Bowie
Gettysburg
National Harbor
Oxon Hill

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Alternative routes for Basel to Dulles Intl

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