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$597+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — DEN
Jan 30 — Feb 61
Fri 1/30
Fri 2/6
1 adult, Economy
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Cheap flight deals from Basel to Colorado

Best flights from Basel to Colorado
Discover carefully curated flight deals from Basel to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 31, 2025.

This Billigflug deal was found by Cheapflights users on 12/30. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/177:00 amBSL - DEN
2 stops22h 36mBritish Airways
Sun 2/222:28 pmDEN - BSL
2 stops16h 37mBritish Airways
Deal found 12/30$597
This American Airlines deal was found by Cheapflights users on 12/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:20 amBSL - COS
2 stops23h 50mAmerican Airlines
Sun 3/81:39 pmCOS - BSL
2 stops18h 26mAmerican Airlines
Deal found 12/29$606
This Iberia deal was found by Cheapflights users on 12/30. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/296:05 amBSL - DEN
1 stop17h 25mMultiple Airlines
Mon 2/21:40 pmDEN - BSL
2 stops20h 35mMultiple Airlines
Deal found 12/30$607
This British Airways deal was found by Cheapflights users on 12/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:20 amBSL - DEN
1 stop17h 10mBritish Airways
Sun 3/15:25 pmDEN - BSL
1 stop20h 55mBritish Airways
Deal found 12/29$606
This American Airlines deal was found by Cheapflights users on 12/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:20 amBSL - DEN
2 stops22h 30mAmerican Airlines
Sun 3/19:10 amDEN - BSL
2 stops21h 55mAmerican Airlines
Deal found 12/29$610
This Iberia deal was found by Cheapflights users on 12/31. 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.
Wed 1/216:20 amBSL - DEN
2 stops24h 14mMultiple Airlines
Fri 1/305:25 pmDEN - BSL
1 stop20h 05mMultiple Airlines
Deal found 12/31$612
This British Airways deal was found by Cheapflights users on 12/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/296:05 amBSL - DEN
1 stop17h 25mBritish Airways
Mon 2/25:25 pmDEN - BSL
1 stop32h 50mBritish Airways
Deal found 12/30$607
This American Airlines deal was found by Cheapflights users on 12/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/296:05 amBSL - DEN
2 stops35h 50mAmerican Airlines
Mon 2/212:52 pmDEN - BSL
2 stops21h 23mAmerican Airlines
Deal found 12/30$610
This Iberia deal was found by Cheapflights users on 12/30. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/137:00 amBSL - DEN
2 stops21h 05mMultiple Airlines
Fri 2/2012:21 pmDEN - BSL
2 stops17h 49mMultiple Airlines
Deal found 12/30$612

Find 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 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$597
(Billigflug)

Popular in

May

Cheapest in

September

Average price

$904
Provider with most accurate pricing for Basel (EAP)-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Basel (EAP)-Denver Intl flights.
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From Basel EuroAirport Swiss to Colorado
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
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 31, 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

Tue 2/17

7:00 am-9:36 pm

2 stops22h 36m

Denver Intl

Sun 2/22

2:28 pm-3:05 pm

2 stops16h 37m

$597

BaselColorado Springs

BSL - COS

BSLCOS

Basel EuroAirport Swiss

Wed 3/4

6:20 am-10:10 pm

2 stops23h 50m

Colorado Springs

Sun 3/8

1:39 pm-3:05 pm

2 stops18h 26m

$606

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-10:20 pm

1 stop20h 55m

$606

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 1/29

6:05 am-3:30 pm

1 stop17h 25m

Denver Intl

Mon 2/2

1:40 pm-6:15 pm

2 stops20h 35m

$607

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 1/29

6:05 am-3:30 pm

1 stop17h 25m

Denver Intl

Mon 2/2

5:25 pm-10:15 am

1 stop32h 50m

$607

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 2/25

6:20 am-8:50 pm

2 stops22h 30m

Denver Intl

Sun 3/1

9:10 am-3:05 pm

2 stops21h 55m

$610

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 1/29

6:05 am-9:55 am

2 stops35h 50m

Denver Intl

Mon 2/2

12:52 pm-6:15 pm

2 stops21h 23m

$610

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 1/21

6:20 am-10:34 pm

2 stops24h 14m

Denver Intl

Fri 1/30

5:25 pm-9:30 pm

1 stop20h 05m

$612

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Fri 2/13

7:00 am-8:05 pm

2 stops21h 05m

Denver Intl

Fri 2/20

12:21 pm-2:10 pm

2 stops17h 49m

$612

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 2/14

9:50 am-2:35 pm

1 stop12h 45m

$1,650

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 12 results
1
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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 $597, British Airways can have you in Colorado from Basel EuroAirport Swiss in 22h 36m. 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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