HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Basel

$256+ Cheap flights from Denver (DEN) 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BSL
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Basel with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Denver to Basel

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) 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 3, 2025.

Round-trip from

$552
(American Airlines)

One-way from

$256
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,336
From Denver Intl to Basel EuroAirport Swiss
Search Deals
One-way flight from Denver Intl to Basel EuroAirport Swiss
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($183 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Denver to Basel

Cheapest flights from Denver to Basel
Explore the most affordable flight options available from Denver to Basel. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This American Airlines deal was found by Cheapflights users on 7/1. 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.
Wed 10/296:30 pmDEN - BSL
1 stop17h 10mAmerican Airlines
Wed 11/56:15 amBSL - DEN
1 stop17h 10mAmerican Airlines
Deal found 7/1$552
This British Airways deal was found by Cheapflights users on 7/1. 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.
Tue 8/126:35 pmDEN - BSL
1 stop20h 15mBritish Airways
Thu 8/287:45 pmBSL - DEN
1 stop28h 40mBritish Airways
Deal found 7/1$584
This KLM deal was found by Cheapflights users on 7/2. 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.
Tue 8/129:36 amDEN - BSL
2 stops15h 54mKLM
Thu 8/2810:10 amBSL - DEN
1 stop13h 20mKLM
Deal found 7/2$603
This Air France deal was found by Cheapflights users on 7/1. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1210:41 amDEN - BSL
2 stops14h 49mAir France
Thu 8/2810:10 amBSL - DEN
2 stops17h 45mAir France
Deal found 7/1$612
This Delta deal was found by Cheapflights users on 7/2. 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.
Sun 8/1712:46 pmDEN - BSL
2 stops16h 24mDelta
Sun 8/3110:00 amBSL - DEN
1 stop13h 30mDelta
Deal found 7/2$663
This FlightHub deal was found by Cheapflights users on 7/3. 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.
Tue 8/127:50 pmDEN - BSL
1 stop29h 50mTurkish Airlines
Thu 8/286:55 pmBSL - DEN
1 stop31h 00mTurkish Airlines
Deal found 7/3$682
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/174:15 pmDEN - BSL
1 stop12h 10mLufthansa
Sun 8/248:30 amBSL - DEN
1 stop15h 05mLufthansa
Deal found 7/3$702
This United Airlines deal was found by Cheapflights users on 7/3. 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.
Sun 8/174:15 pmDEN - BSL
1 stop12h 10mUnited Airlines
Sun 8/2411:30 amBSL - DEN
1 stop12h 05mUnited Airlines
Deal found 7/3$704
This United deal was found by Cheapflights users on 7/2. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/114:15 pmDEN - BSL
1 stop12h 10mMultiple Airlines
Wed 9/248:25 amBSL - DEN
1 stop13h 10mMultiple Airlines
Deal found 7/2$734

Cheapflights Fare Finder

Customize your flight search to find flights from Denver 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 3, 2025.
Use the filters below to find and compare flights from Denver to Basel EuroAirport Swiss that are best for you.

Fly from

Denver

Fly to

Basel

Route

Depart

Return

Price

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Wed 10/29

6:30 pm-6:40 pm

1 stop17h 10m

Basel EuroAirport Swiss

Wed 11/5

6:15 am-3:25 pm

1 stop17h 10m

$552

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Tue 8/12

6:35 pm-10:50 pm

1 stop20h 15m

Basel EuroAirport Swiss

Thu 8/28

7:45 pm-4:25 pm

1 stop28h 40m

$584

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Tue 8/12

9:36 am-9:30 am

2 stops15h 54m

Basel EuroAirport Swiss

Thu 8/28

10:10 am-3:30 pm

1 stop13h 20m

$603

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Tue 8/12

10:41 am-9:30 am

2 stops14h 49m

Basel EuroAirport Swiss

Thu 8/28

10:10 am-7:55 pm

2 stops17h 45m

$612

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Sun 8/17

12:46 pm-1:10 pm

2 stops16h 24m

Basel EuroAirport Swiss

Sun 8/31

10:00 am-3:30 pm

1 stop13h 30m

$663

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Tue 8/12

7:50 pm-9:40 am

1 stop29h 50m

Basel EuroAirport Swiss

Thu 8/28

6:55 pm-5:55 pm

1 stop31h 00m

$682

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Sun 8/17

4:15 pm-12:25 pm

1 stop12h 10m

Basel EuroAirport Swiss

Sun 8/24

8:30 am-3:35 pm

1 stop15h 05m

$702

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Sun 8/17

4:15 pm-12:25 pm

1 stop12h 10m

Basel EuroAirport Swiss

Sun 8/24

11:30 am-3:35 pm

1 stop12h 05m

$704

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Thu 9/11

4:15 pm-12:25 pm

1 stop12h 10m

Basel EuroAirport Swiss

Wed 9/24

8:25 am-1:35 pm

1 stop13h 10m

$734

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Sat 9/20

6:55 pm-9:20 am

3 stops54h 25m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Denver to Basel

Have a flexible travel schedule? Discover the best time to fly to Basel from Denver 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 Denver to Basel EuroAirport Swiss

What is the cheapest time of day to fly from DEN to BSL?

Find hourly flight availability from Denver to Basel. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denver to Basel EuroAirport Swiss as you normally would.

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 July 3, 2025.
Read through reviews of airlines operating flights from Denver to Basel EuroAirport Swiss, such as Delta, KLM, and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
3,895 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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 Denver to Basel. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Denver to Basel EuroAirport Swiss round-trip?

    Our cheapest airline available from Denver to Basel EuroAirport Swiss is American Airlines. Our recent data shows that you can find tickets from as low as $552 on this airline. Additional options worth looking into are British Airways and KLM, starting at $584 and $603 round-trip. American Airlines is priced at 51% lower than the current average price of a flight leaving 3 months from now.

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

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

  • How can I find direct flights from Denver to Basel?

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

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

    Yes. Cheapflights offers flight deals from Denver 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 Denver to Basel EuroAirport Swiss?

    Currently, January is the cheapest month in which you can book a flight from Denver to Basel EuroAirport Swiss (average of $545). Flying from Denver 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Denver to Basel

See prices for flight routes from nearby airports that may be better suited for you.
Aspen to Basel flights

Top airline flying from Denver to Basel

Discover the top airline that operate flights from Denver 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$582Average$1,125FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.