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$585+ Cheap flights from Basel EuroAirport Swiss (BSL) to Colorado

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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — DEN
Feb 6 — Feb 131
Fri 2/6
Fri 2/13
1 adult, Economy
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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 January 7, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$585
(Billigflug)

Popular in

May

Cheapest in

September

Average price

$943
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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Highest demand for flights based on searches. 0% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 7, 2026.

This Billigflug deal was found by Cheapflights users on 1/6. 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.
Fri 1/237:00 amBSL - COS
2 stops38h 57mMultiple Airlines
Tue 1/273:17 pmCOS - BSL
2 stops15h 48mMultiple Airlines
Deal found 1/6$585
This American Airlines deal was found by Cheapflights users on 1/5. 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 2/256:20 amBSL - DEN
1 stop17h 10mAmerican Airlines
Sun 3/18:00 amDEN - BSL
2 stops30h 20mAmerican Airlines
Deal found 1/5$602
This American Airlines deal was found by Cheapflights users on 1/6. 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.
Fri 8/286:00 amBSL - COS
2 stops25h 44mAmerican Airlines
Tue 9/2212:27 pmCOS - BSL
2 stops22h 03mAmerican Airlines
Deal found 1/6$604
This British Airways deal was found by Cheapflights users on 1/7. 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.
Thu 2/57:35 pmBSL - DEN
1 stop27h 55mBritish Airways
Mon 2/95:25 pmDEN - BSL
1 stop20h 10mBritish Airways
Deal found 1/7$605
This Iberia deal was found by Cheapflights users on 1/7. 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 2/56:05 amBSL - DEN
2 stops22h 48mMultiple Airlines
Mon 2/91:40 pmDEN - BSL
2 stops20h 35mMultiple Airlines
Deal found 1/7$611
This American Airlines deal was found by Cheapflights users on 1/6. 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.
Fri 3/277:00 amBSL - DEN
1 stop16h 30mAmerican Airlines
Tue 5/196:40 pmDEN - BSL
1 stop32h 40mAmerican Airlines
Deal found 1/6$656
This Cheapflightsfares deal was found by Cheapflights users on 1/7. 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.
Sun 3/151:10 pmBSL - DEN
1 stop13h 45mLufthansa
Fri 3/209:20 pmDEN - BSL
1 stop11h 45mLufthansa
Deal found 1/7$787
This United Airlines deal was found by Cheapflights users on 1/6. 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.
Fri 2/201:10 pmBSL - DEN
1 stop13h 45mUnited Airlines
Fri 2/278:20 pmDEN - BSL
1 stop11h 45mUnited Airlines
Deal found 1/6$815
This Gotogate deal was found by Cheapflights users on 1/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/238:15 pmBSL - DEN
1 stop25h 30mLufthansa
Sat 8/84:15 pmDEN - BSL
1 stop12h 10mLufthansa
Deal found 1/7$820
This American Airlines deal was found by Cheapflights users on 1/5. 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.
Tue 10/2711:00 amBSL - COS
2 stops43h 19mAmerican Airlines
Sat 10/315:01 pmCOS - BSL
2 stops39h 04mAmerican Airlines
Deal found 1/5$1,109

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 January 7, 2026.
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

Fri 1/23

7:00 am-1:57 pm

2 stops38h 57m

Colorado Springs

Tue 1/27

3:17 pm-3:05 pm

2 stops15h 48m

$585

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 4/2

6:10 am-4:30 pm

1 stop18h 20m

Denver Intl

Tue 5/19

6:40 pm-11:20 am

1 stop32h 40m

$602

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Tue 3/31

8:15 am-4:30 pm

1 stop16h 15m

Denver Intl

Tue 5/19

6:40 pm-11:20 am

1 stop32h 40m

$602

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 2/25

6:20 am-3:30 pm

1 stop17h 10m

Denver Intl

Sun 3/1

5:25 pm-3:05 pm

1 stop13h 40m

$603

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 2/5

7:35 pm-3:30 pm

1 stop27h 55m

Denver Intl

Mon 2/9

5:25 pm-9:35 pm

1 stop20h 10m

$605

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 2/5

6:05 am-3:30 pm

1 stop17h 25m

Denver Intl

Mon 2/9

4:30 pm-9:35 pm

2 stops21h 05m

$605

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Mon 3/30

6:35 am-5:53 pm

2 stops19h 18m

Denver Intl

Tue 5/19

6:40 pm-11:20 am

1 stop32h 40m

$608

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 4/1

6:40 am-8:05 pm

2 stops21h 25m

Denver Intl

Tue 5/19

6:40 pm-11:20 am

1 stop32h 40m

$608

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sun 3/15

1:10 pm-7:55 pm

1 stop13h 45m

Denver Intl

Fri 3/20

9:20 pm-4:05 pm

1 stop11h 45m

$787

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 4/1

6:40 am-3:53 pm

2 stops17h 13m

$699

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 20 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 $602, American Airlines can have you in Colorado from Basel EuroAirport Swiss in 18h 20m. 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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