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$633+ Cheap flights from Basel EuroAirport Swiss (BSL) to Colorado

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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — DEN
Dec 31 — Jan 71
Wed 12/31
Wed 1/7
1 adult, Economy
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Find flight deals from Basel to Colorado

Cheapest flights from Basel to Colorado
Explore the most affordable flight options available from Basel to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 11/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/222:20 pmBSL - DEN
2 stops17h 55mMultiple Airlines
Mon 12/2911:20 amDEN - BSL
2 stops14h 40mMultiple Airlines
Deal found 11/29$1,099
This Bravofly deal was found by Cheapflights users on 11/30. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:45 amBSL - DEN
2 stops18h 59mAir Canada
Wed 12/101:25 pmDEN - BSL
2 stops22h 15mAir Canada
Deal found 11/30$1,157
This Billigflug deal was found by Cheapflights users on 12/1. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:05 amBSL - COS
2 stops24h 20mMultiple Airlines
Sun 12/212:00 pmCOS - BSL
2 stops15h 50mMultiple Airlines
Deal found 12/1$1,734

Cheap flight deals from Basel to Colorado

Keep the following information in mind while searching for Basel to Colorado flight deals. Data was last updated December 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$638
(American Airlines)

One-way from

$633
(Thrive Travel)

Popular in

January

Cheapest in

September

Average price

$820
Provider with most accurate pricing for Basel (EAP)-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Basel (EAP)-Denver Intl flights.
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From Basel EuroAirport Swiss to Colorado
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One-way flight from Basel EuroAirport Swiss to Colorado
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Highest demand for flights based on searches. 4% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Basel to Colorado 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 December 1, 2025.
Use the filters below to find and compare flights from Basel EuroAirport Swiss to Colorado that are best for you.

Fly from

Basel

Fly to

Colorado

Route

Depart

Return

Price

BaselColorado Springs

BSL - COS

BSLCOS

Basel EuroAirport Swiss

Wed 1/28

6:20 am-5:41 pm

2 stops43h 21m

Colorado Springs

Sat 1/31

3:05 pm-3:05 pm

2 stops40h 00m

$638

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Mon 1/12

6:15 am-6:13 pm

2 stops19h 58m

Denver Intl

Sun 1/18

12:52 pm-3:05 pm

2 stops18h 13m

$642

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Mon 1/12

6:15 am-3:30 pm

1 stop17h 15m

Denver Intl

Sun 1/18

5:25 pm-3:05 pm

1 stop13h 40m

$650

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 1/14

6:20 am-3:30 pm

1 stop17h 10m

Denver Intl

Wed 1/21

12:28 pm-2:55 pm

2 stops18h 27m

$652

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 2/21

6:05 am-7:19 pm

2 stops21h 14m

Denver Intl

Sat 2/28

11:10 am-5:25 pm

2 stops22h 15m

$678

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-6:05 pm

1 stop16h 40m

$690

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sun 3/1

2:10 pm-4:40 pm

2 stops34h 30m

Denver Intl

Sun 3/8

8:05 am-12:30 pm

2 stops21h 25m

$721

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 1/14

8:15 pm-2:35 pm

1 stop26h 20m

Denver Intl

Wed 1/21

4:20 pm-7:40 pm

1 stop19h 20m

$728

BaselColorado Springs

BSL - COS

BSLCOS

Basel EuroAirport Swiss

Wed 12/17

6:05 am-10:25 pm

2 stops24h 20m

Colorado Springs

Sun 12/21

2:00 pm-1:50 pm

2 stops15h 50m

$1,734

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 1/14

6:20 am-3:30 pm

1 stop17h 10m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

Showing 1-10 of 17 results
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Best time to book a flight from Basel to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado 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 Colorado
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Basel to Colorado. 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 Colorado?

    If you book a flight to Colorado from Basel, you will be flying from EuroAirport Swiss, which is the city’s only airport. Basel EuroAirport Swiss (BSL) is located 3.6 mi from the center of Basel.

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

    For as low as $652, American Airlines can have you in Colorado from Basel EuroAirport Swiss in 17h 10m. The distance between Basel EuroAirport Swiss and Colorado is about 5101 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Basel to Colorado 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

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