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$578+ Cheap flights from Basel EuroAirport Swiss (BSL) to Denver (DEN)

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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — DEN
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find flight deals from Basel to Denver

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

This American Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 12/46:05 amBSL - DEN
2 stops25h 00mAmerican Airlines
Mon 12/85:25 pmDEN - BSL
1 stop16h 50mAmerican Airlines
Deal found 10/28$701
This American Airlines deal was found by Cheapflights users on 10/27. 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 11/196:20 amBSL - DEN
1 stop17h 10mAmerican Airlines
Tue 11/254:36 pmDEN - BSL
2 stops21h 44mAmerican Airlines
Deal found 10/27$751
This Delta deal was found by Cheapflights users on 10/27. 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.
Wed 11/196:05 amBSL - DEN
2 stops20h 42mDelta
Sun 11/2311:49 amDEN - BSL
2 stops18h 01mDelta
Deal found 10/27$764
This Billigflug deal was found by Cheapflights users on 10/27. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/229:50 amBSL - DEN
2 stops32h 45mMultiple Airlines
Sun 11/231:25 pmDEN - BSL
2 stops22h 15mMultiple Airlines
Deal found 10/27$768
This Lufthansa deal was found by Cheapflights users on 10/28. 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.
Thu 12/410:35 amBSL - DEN
1 stop13h 25mLufthansa
Mon 12/88:20 pmDEN - BSL
1 stop15h 20mLufthansa
Deal found 10/28$782
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Sat 11/229:50 amBSL - DEN
1 stop17h 05mUnited Airlines
Mon 11/249:51 amDEN - BSL
2 stops15h 19mUnited Airlines
Deal found 10/27$790
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Sat 11/229:50 amBSL - DEN
1 stop12h 45mUnited Airlines
Sun 11/235:40 pmDEN - BSL
2 stops38h 25mUnited Airlines
Deal found 10/27$795
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/191:10 pmBSL - DEN
2 stops18h 27mUnited Airlines
Wed 11/269:51 amDEN - BSL
2 stops15h 19mUnited Airlines
Deal found 10/27$796
This Delta deal was found by Cheapflights users on 10/28. 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 11/76:05 amBSL - DEN
2 stops20h 56mDelta
Sun 11/167:10 amDEN - BSL
2 stops19h 30mDelta
Deal found 10/28$856

Cheap flight deals from Basel to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Basel (BSL) to Denver (DEN). 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 October 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$695
(American Airlines)

One-way from

$578
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$752
Provider with most accurate pricing for Basel EuroAirport Swiss-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Basel EuroAirport Swiss-Denver Intl flights.
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From Basel EuroAirport Swiss to Denver Intl
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One-way flight from Basel EuroAirport Swiss to Denver Intl
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Highest demand for flights based on searches. 2% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Basel to Denver 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 October 29, 2025.
Use the filters below to find and compare flights from Basel EuroAirport Swiss to Denver that are best for you.

Fly from

Basel

Fly to

Denver

Route

Depart

Return

Price

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 2/21

7:10 am-3:30 pm

1 stop16h 20m

Denver Intl

Sat 2/28

5:25 pm-3:35 pm

1 stop14h 10m

$695

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 12/4

6:05 am-5:47 pm

2 stops19h 42m

Denver Intl

Mon 12/8

2:48 pm-2:35 pm

2 stops15h 47m

$701

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Fri 11/21

7:00 am-8:17 pm

2 stops21h 17m

Denver Intl

Tue 11/25

4:36 pm-10:20 pm

2 stops21h 44m

$757

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 11/19

6:05 am-6:47 pm

2 stops20h 42m

Denver Intl

Mon 11/24

7:10 am-9:50 am

2 stops18h 40m

$764

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Fri 11/21

6:05 am-6:47 pm

2 stops20h 42m

Denver Intl

Mon 11/24

7:10 am-9:50 am

2 stops18h 40m

$764

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 11/20

11:15 am-12:02 am

2 stops20h 47m

Denver Intl

Sun 11/23

11:49 am-1:50 pm

2 stops18h 01m

$764

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 11/19

6:05 am-6:47 pm

2 stops20h 42m

Denver Intl

Sun 11/23

11:49 am-1:50 pm

2 stops18h 01m

$764

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 11/27

12:40 pm-3:42 pm

3 stops59h 02m

$578

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 12/18

6:05 am-5:04 pm

2 stops42h 59m

$610

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Mon 12/22

6:15 am-7:43 pm

2 stops45h 28m

$610

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 18 results
1
2
  • Most accurate provider: When it comes to deals on Basel EuroAirport Swiss-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Basel EuroAirport Swiss-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Basel EuroAirport Swiss-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Basel EuroAirport Swiss-Denver flights, Cheapflights users trust FlightHub the most. FlightHub 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-Denver 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 Denver

Have a flexible travel schedule? Discover the best time to fly to Denver 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.

Related info for your journey

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

  • How long is the flight from Basel EuroAirport Swiss to Denver?

    Airlines like American Airlines fly from Basel EuroAirport Swiss to Denver in about 16h 20m. The time it takes to get you to your destination can typically vary by up to . The distance from Basel EuroAirport Swiss to Denver is about 5101 mi.

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

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

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

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

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

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

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Central City
Manitou Springs
Fort Morgan
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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