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$678+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — DEN
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
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 October 16, 2025.

This Delta deal was found by Cheapflights users on 10/16. 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.
Thu 11/66:05 amBSL - DEN
2 stops23h 36mDelta
Thu 11/277:05 amDEN - BSL
2 stops22h 45mDelta
Deal found 10/16$742
This Expedia deal was found by Cheapflights users on 10/16. 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.
Fri 11/77:50 pmBSL - DEN
1 stop27h 40mBritish Airways
Fri 11/285:25 pmDEN - BSL
1 stop20h 05mBritish Airways
Deal found 10/16$746
This Delta deal was found by Cheapflights users on 10/16. 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.
Fri 10/316:05 amBSL - DEN
2 stops22h 36mDelta
Sun 11/163:14 pmDEN - BSL
2 stops18h 11mDelta
Deal found 10/16$747
This British Airways deal was found by Cheapflights users on 10/16. 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 11/53:50 pmBSL - DEN
1 stop31h 40mBritish Airways
Fri 11/285:25 pmDEN - BSL
1 stop34h 40mBritish Airways
Deal found 10/16$753
This Delta deal was found by Cheapflights users on 10/16. 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.
Fri 10/316:05 amBSL - DEN
2 stops22h 36mDelta
Mon 11/247:10 amDEN - BSL
2 stops18h 40mDelta
Deal found 10/16$764
This Delta deal was found by Cheapflights users on 10/16. 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.
Thu 10/306:05 amBSL - DEN
2 stops19h 56mDelta
Fri 11/147:10 amDEN - BSL
2 stops19h 05mDelta
Deal found 10/16$766
This Delta deal was found by Cheapflights users on 10/16. 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.
Thu 10/306:05 amBSL - DEN
2 stops19h 56mDelta
Wed 11/197:10 amDEN - BSL
2 stops22h 40mDelta
Deal found 10/16$769
This Delta deal was found by Cheapflights users on 10/16. 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.
Sat 11/16:05 amBSL - DEN
2 stops22h 36mDelta
Thu 11/207:10 amDEN - BSL
2 stops19h 30mDelta
Deal found 10/16$770
This Delta deal was found by Cheapflights users on 10/16. 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.
Thu 10/3010:30 amBSL - DEN
2 stops29h 51mDelta
Sat 11/157:10 amDEN - BSL
2 stops18h 40mDelta
Deal found 10/16$772
This Air Canada deal was found by Cheapflights users on 10/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/309:50 amBSL - DEN
2 stops34h 33mMultiple Airlines
Sun 12/78:45 amDEN - BSL
2 stops21h 00mMultiple Airlines
Deal found 10/16$782
This Lufthansa deal was found by Cheapflights users on 10/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:45 amBSL - DEN
1 stop14h 55mLufthansa
Sat 11/294:20 pmDEN - BSL
1 stop12h 10mLufthansa
Deal found 10/16$783
This Lufthansa deal was found by Cheapflights users on 10/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:45 amBSL - DEN
1 stop14h 55mLufthansa
Thu 11/278:20 pmDEN - BSL
1 stop15h 20mLufthansa
Deal found 10/16$784

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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$678
(American Airlines)

Popular in

July

Cheapest in

February

Average price

$752
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
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 16, 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 4/1

6:40 am-11:25 pm

2 stops24h 45m

Colorado Springs

Sun 4/5

10:53 am-11:20 am

2 stops16h 27m

$678

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 11/8

6:05 am-2:46 pm

2 stops16h 41m

Denver Intl

Thu 11/27

8:05 am-1:50 pm

2 stops21h 45m

$764

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 11/1

11:15 am-11:11 am

2 stops30h 56m

Denver Intl

Wed 11/19

12:20 pm-1:50 pm

2 stops17h 30m

$764

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Fri 10/31

6:05 am-6:19 pm

2 stops19h 14m

Denver Intl

Fri 11/14

11:47 am-1:50 pm

2 stops18h 03m

$764

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sun 11/9

6:05 am-2:59 pm

2 stops16h 54m

Denver Intl

Wed 11/26

12:02 pm-1:50 pm

2 stops17h 48m

$764

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Fri 10/31

6:05 am-6:19 pm

2 stops19h 14m

Denver Intl

Tue 11/18

7:10 am-9:50 am

2 stops18h 40m

$764

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Fri 10/31

6:05 am-6:19 pm

2 stops19h 14m

Denver Intl

Mon 11/17

7:10 am-9:50 am

2 stops18h 40m

$766

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Fri 10/31

6:05 am-6:19 pm

2 stops19h 14m

Denver Intl

Thu 11/20

7:10 am-10:40 am

2 stops19h 30m

$770

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sun 11/9

6:05 am-6:47 pm

2 stops20h 42m

Denver Intl

Sat 11/29

7:10 am-10:40 am

2 stops19h 30m

$770

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 11/6

6:05 am-6:19 pm

2 stops20h 14m

Denver Intl

Sun 11/30

7:10 am-5:25 pm

2 stops26h 15m

$770

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 19 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 $764, American Airlines can have you in Colorado from Basel EuroAirport Swiss in 16h 41m. 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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