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$603+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — DEN
out 11 — out 181
sáb 10/11
sáb 10/18
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 setembro 11, 2025.

Round-trip from

$603
(Flysmarter)

Popular in

September

Cheapest in

February

Average price

$1,057
From Basel EuroAirport Swiss to Colorado
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 setembro 11, 2025.

This Flysmarter deal was found by Cheapflights users on 9/9. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 10/226:40 amBSL - DEN
1 stop17h 45mBritish Airways
qua 11/55:25 pmDEN - BSL
1 stop20h 40mBritish Airways
Deal found 9/9$603
This American Airlines deal was found by Cheapflights users on 9/9. 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.
ter 10/216:45 amBSL - DEN
1 stop17h 40mAmerican Airlines
qua 11/512:26 pmDEN - BSL
2 stops22h 14mAmerican Airlines
Deal found 9/9$610
This British Airways deal was found by Cheapflights users on 9/9. 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.
seg 10/207:20 pmBSL - DEN
1 stop29h 05mBritish Airways
qua 11/54:51 pmDEN - BSL
2 stops17h 49mBritish Airways
Deal found 9/9$611
This British Airways deal was found by Cheapflights users on 9/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 10/264:25 pmBSL - DEN
1 stop31h 05mBritish Airways
qua 11/55:25 pmDEN - BSL
1 stop17h 15mBritish Airways
Deal found 9/10$613
This American Airlines deal was found by Cheapflights users on 9/9. 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.
sex 10/246:00 amBSL - DEN
2 stops22h 27mAmerican Airlines
qui 11/62:49 pmDEN - BSL
2 stops16h 16mAmerican Airlines
Deal found 9/9$615
This American Airlines deal was found by Cheapflights users on 9/10. 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.
qui 10/166:10 amBSL - DEN
1 stop18h 15mAmerican Airlines
seg 10/2010:40 amDEN - BSL
2 stops16h 20mAmerican Airlines
Deal found 9/10$616
This British Airways deal was found by Cheapflights users on 9/9. 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.
sáb 10/256:35 amBSL - DEN
2 stops20h 51mBritish Airways
dom 11/22:49 pmDEN - BSL
2 stops23h 31mBritish Airways
Deal found 9/9$617
This American Airlines deal was found by Cheapflights users on 9/10. 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.
qui 11/611:05 amBSL - DEN
2 stops19h 17mAmerican Airlines
sáb 11/1511:26 amDEN - BSL
2 stops20h 09mAmerican Airlines
Deal found 9/10$625

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 setembro 11, 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

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

qua 10/22

6:40 am-4:25 pm

1 stop17h 45m

Denver Intl

qua 11/5

5:25 pm-10:05 pm

1 stop20h 40m

$603

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

qui 10/23

6:10 am-4:25 pm

1 stop18h 15m

Denver Intl

qui 11/6

12:32 pm-3:05 pm

2 stops18h 33m

$610

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

qui 10/23

6:10 am-4:25 pm

1 stop18h 15m

Denver Intl

qua 11/5

8:13 am-2:55 pm

2 stops22h 42m

$610

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

ter 10/21

6:45 am-4:25 pm

1 stop17h 40m

Denver Intl

qui 11/6

5:25 pm-7:05 pm

1 stop17h 40m

$610

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

qui 10/16

6:10 am-4:25 pm

1 stop18h 15m

Denver Intl

seg 10/20

9:20 am-6:20 pm

2 stops25h 00m

$610

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

seg 10/20

7:20 pm-4:25 pm

1 stop29h 05m

Denver Intl

sex 11/7

5:25 pm-2:10 pm

1 stop12h 45m

$611

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

seg 10/20

7:20 pm-4:25 pm

1 stop29h 05m

Denver Intl

dom 11/2

12:26 pm-10:20 pm

2 stops25h 54m

$611

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

qui 10/23

6:10 am-4:25 pm

1 stop18h 15m

Denver Intl

ter 11/4

5:25 pm-3:05 pm

1 stop13h 40m

$611

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

qua 10/29

6:20 am-4:30 pm

1 stop17h 10m

Denver Intl

dom 11/2

2:49 pm-10:20 pm

2 stops23h 31m

$611

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

seg 10/20

7:20 pm-4:25 pm

1 stop29h 05m

Denver Intl

ter 11/4

5:25 pm-3:05 pm

1 stop13h 40m

$611

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 22 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 $603, British Airways can have you in Colorado from Basel EuroAirport Swiss in 17h 45m. 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.

  • What is the cheapest month to book a flight from Basel EuroAirport Swiss to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Basel EuroAirport Swiss to Colorado (average of $197). Flying from Basel EuroAirport Swiss to Colorado in March is currently the most expensive (average of $278). 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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