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$341+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BSL
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap 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 junio 12, 2025.

Round-trip from

$501
(AirNGo)

One-way from

$341
(Kiwi.com)

Popular in

May

Cheapest in

January

Average price

$905
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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Highest demand for flights based on searches. 6% potential increase in price ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 junio 12, 2025.

This AirNGo deal was found by Cheapflights users on 6/10. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/410:40 pmIAD - BSL
1 stop18h 10mBritish Airways
mié. 8/206:40 amBSL - IAD
1 stop19h 30mBritish Airways
Deal found 6/10$501
This American Airlines deal was found by Cheapflights users on 6/10. 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.
mar. 8/57:25 pmIAD - BSL
1 stop21h 25mAmerican Airlines
mar. 8/1911:55 amBSL - IAD
2 stops17h 01mAmerican Airlines
Deal found 6/10$511
This Mytrip deal was found by Cheapflights users on 6/11. 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.
mar. 12/29:45 amIAD - BSL
2 stops18h 20mMultiple Airlines
mar. 12/910:40 amBSL - IAD
2 stops15h 49mMultiple Airlines
Deal found 6/11$529
This United Airlines deal was found by Cheapflights users on 6/12. 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.
mar. 12/29:15 amIAD - BSL
2 stops27h 15mUnited Airlines
mar. 12/92:00 pmBSL - IAD
1 stop12h 15mUnited Airlines
Deal found 6/12$556
This Air Canada deal was found by Cheapflights users on 6/11. 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.
mar. 12/29:55 amIAD - BSL
2 stops18h 10mAir Canada
mar. 12/910:40 amBSL - IAD
2 stops15h 49mAir Canada
Deal found 6/11$563
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/189:40 pmIAD - BSL
1 stop30h 00mTurkish Airlines
vie. 9/266:55 pmBSL - IAD
1 stop22h 50mTurkish Airlines
Deal found 6/11$569
This Delta deal was found by Cheapflights users on 6/10. 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.
mar. 8/512:45 pmIAD - BSL
2 stops14h 45mDelta
jue. 8/141:50 pmBSL - IAD
1 stop11h 25mDelta
Deal found 6/10$601
This Austrian Airlines deal was found by Cheapflights users on 6/10. 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.
sáb. 11/156:00 pmIAD - BSL
1 stop33h 30mAustrian Airlines
lun. 12/18:25 pmBSL - IAD
1 stop24h 15mAustrian Airlines
Deal found 6/10$619
This Trip.com deal was found by Cheapflights users on 6/10. 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.
jue. 12/1111:10 pmIAD - BSL
1 stop14h 30mLufthansa
vie. 12/1910:40 amBSL - IAD
1 stop11h 10mLufthansa
Deal found 6/10$621

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 junio 12, 2025.
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

Dulles Intl

Fly to

Basel

Route

Depart

Return

Price

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

lun. 8/4

10:40 pm-10:50 pm

1 stop18h 10m

Basel EuroAirport Swiss

mié. 8/20

6:40 am-8:10 pm

1 stop19h 30m

$501

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

mar. 8/5

7:25 pm-10:50 pm

1 stop21h 25m

Basel EuroAirport Swiss

mar. 8/19

11:55 am-10:56 pm

2 stops17h 01m

$511

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

mar. 8/5

5:40 pm-12:25 pm

1 stop12h 45m

Basel EuroAirport Swiss

mar. 8/19

11:25 am-3:15 pm

1 stop33h 50m

$571

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

mar. 8/5

12:45 pm-9:30 am

2 stops14h 45m

Basel EuroAirport Swiss

jue. 8/14

1:50 pm-7:15 pm

1 stop11h 25m

$601

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

jue. 9/4

9:40 pm-6:00 pm

1 stop14h 20m

Basel EuroAirport Swiss

lun. 9/8

10:35 am-11:45 am

1 stop31h 10m

$617

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

mié. 8/6

10:20 pm-5:50 pm

2 stops13h 30m

Basel EuroAirport Swiss

lun. 8/18

2:15 pm-8:05 pm

1 stop11h 50m

$692

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

dom. 7/27

9:45 am-10:50 pm

3 stops31h 05m

Basel EuroAirport Swiss

dom. 8/3

6:30 pm-1:30 pm

3 stops25h 00m

$975

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

mar. 7/29

9:35 am-10:50 am

2 stops19h 15m

Basel EuroAirport Swiss

jue. 8/7

11:30 am-11:14 am

2 stops29h 44m

$1,191

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

dom. 7/27

5:25 pm-7:45 pm

1 stop20h 20m

Basel EuroAirport Swiss

dom. 8/3

8:25 pm-2:25 pm

2 stops24h 00m

$1,496

Washington, D.C.Basel

IAD - BSL

IADBSL

Washington, D.C. Dulles Intl

dom. 7/27

10:20 pm-10:00 am

1 stop29h 40m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 14 results
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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.

Cheapflights Insights

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

Rainfall in Basel by month

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

In terms of precipitation, rainfall in Basel EuroAirport Swiss ranges from 1.9 - 3.4 inches per month. June is typically the wettest month, when rainfall can reach 3.4 in. February is typically the driest time to visit Basel EuroAirport Swiss when rainfall is around 1.9 in.

Temperature in Basel by month

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

If weather is an important factor for your trip to Basel EuroAirport Swiss, 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 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Basel

Get insights into the airlines that provide service to Basel. 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 Basel. Reviews last updated junio 12, 2025.
Read reviews from past customers who have flown Delta, KLM and Austrian Airlines from Washington, D.C. to Basel. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Turkish Airlines
7.3
Good
3,848 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 1 airline. Basel EuroAirport Swiss is conveniently located just 3.6 mi from Basel’s city center.

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

    Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Basel EuroAirport Swiss is British Airways. Our recent data shows that you can find tickets from as low as $501 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $511 and $556 round-trip. British Airways is currently priced 41% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $428. Delta flights start at $458 while deals on KLM start at $508 one-way.

  • 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.

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

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Basel EuroAirport Swiss (average of $545). Flying from Washington, D.C. Dulles Intl Airport to Basel EuroAirport Swiss in June is currently the most expensive (average of $1,132). 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

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Alternative routes for Dulles Intl to Basel

See prices for flight routes from nearby airports that may be better suited for you.
Baltimore to Basel flights
Reagan-National to Basel flights

Top airline flying from Dulles Intl to Basel

Discover the top airline that operate flights from Dulles Intl to Basel. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$530Average$583FlexibilityNo cancel feeOn-time77%

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