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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 7 — Feb 141
Sat 2/7
Sat 2/14
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 8, 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 8, 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 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.
Wed 2/253:50 pmBSL - DEN
1 stop31h 40mBritish Airways
Sun 3/110:20 amDEN - BSL
2 stops28h 00mBritish Airways
Deal found 1/7$603
This British Airways deal was found by Cheapflights users on 1/8. 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 2/53:40 pmBSL - DEN
1 stop31h 50mBritish Airways
Mon 2/95:25 pmDEN - BSL
1 stop20h 10mBritish Airways
Deal found 1/8$604
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 American Airlines 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 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 stops24h 17mAmerican Airlines
Sun 3/12:49 pmDEN - BSL
2 stops16h 16mAmerican Airlines
Deal found 1/7$607
This Iberia deal was found by Cheapflights users on 1/8. 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 2/511:05 amBSL - DEN
2 stops20h 11mMultiple Airlines
Mon 2/94:30 pmDEN - BSL
2 stops21h 05mMultiple Airlines
Deal found 1/8$610
This Expedia deal was found by Cheapflights users on 1/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/226:35 amBSL - DEN
1 stop16h 55mBritish Airways
Sun 3/15:25 pmDEN - BSL
1 stop13h 40mBritish Airways
Deal found 1/8$631
This British Airways deal was found by Cheapflights users on 1/8. 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.
Sat 1/247:10 amBSL - COS
2 stops18h 31mBritish Airways
Wed 1/2810:21 amCOS - BSL
2 stops20h 34mBritish Airways
Deal found 1/8$656
This Iberia deal was found by Cheapflights users on 1/8. 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.
Sun 2/226:35 amBSL - DEN
1 stop16h 55mMultiple Airlines
Sun 3/110:20 amDEN - BSL
2 stops20h 45mMultiple Airlines
Deal found 1/8$660
This Delta deal was found by Cheapflights users on 1/8. 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.
Sun 2/226:05 amBSL - DEN
2 stops24h 43mDelta
Sun 3/110:20 amDEN - BSL
2 stops19h 30mDelta
Deal found 1/8$766
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 American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 amBSL - COS
2 stops23h 19mAmerican Airlines
Sat 10/312:55 pmCOS - BSL
2 stops48h 25mAmerican Airlines
Deal found 1/7$932

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 8, 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

Wed 2/25

3:50 pm-3:30 pm

1 stop31h 40m

Denver Intl

Sun 3/1

5:25 pm-10:15 am

1 stop32h 50m

$603

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

3:40 pm-3:30 pm

1 stop31h 50m

Denver Intl

Mon 2/9

5:25 pm-9:35 pm

1 stop20h 10m

$604

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 2/5

6:05 am-3:30 pm

1 stop17h 25m

Denver Intl

Mon 2/9

1:40 pm-6:15 pm

2 stops20h 35m

$604

BaselColorado Springs

BSL - COS

BSLCOS

Basel EuroAirport Swiss

Sat 1/24

7:10 am-5:41 pm

2 stops18h 31m

Colorado Springs

Wed 1/28

10:21 am-2:55 pm

2 stops20h 34m

$656

BaselColorado Springs

BSL - COS

BSLCOS

Basel EuroAirport Swiss

Sat 1/24

10:45 am-12:22 pm

3 stops33h 37m

Colorado Springs

Wed 1/28

1:25 pm-4:05 pm

2 stops18h 40m

$2,019

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sun 6/14

8:20 am-1:30 pm

1 stop13h 10m

$1,066

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Tue 1/20

10:55 am-10:45 am

2 stops31h 50m

$1,185

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Tue 1/20

7:00 am-3:30 pm

1 stop16h 30m

$1,533

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 11 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 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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