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$403+ Cheap flights from Colorado to Basel EuroAirport Swiss (BSL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BSL
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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Find flight deals from Colorado to Basel

Cheapest flights from Colorado to Basel
Explore the most affordable flight options available from Colorado to Basel. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2025.

This British Airways deal was found by Cheapflights users on 10/13. 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 11/265:25 pmDEN - BSL
1 stop17h 15mBritish Airways
Wed 12/36:20 amBSL - DEN
1 stop17h 10mBritish Airways
Deal found 10/13$488
This British Airways deal was found by Cheapflights users on 10/13. 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.
Mon 12/15:25 pmDEN - BSL
1 stop16h 50mBritish Airways
Sun 12/146:35 amBSL - DEN
1 stop16h 55mBritish Airways
Deal found 10/13$538
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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.
Tue 11/184:20 pmDEN - BSL
1 stop12h 10mLufthansa
Wed 11/2610:35 amBSL - DEN
1 stop13h 25mLufthansa
Deal found 10/12$710
This Cheapflightsfares deal was found by Cheapflights users on 10/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/125:25 pmDEN - BSL
2 stops14h 40mLufthansa
Wed 11/1910:35 amBSL - DEN
1 stop13h 25mLufthansa
Deal found 10/10$715
This Cheapflightsfares deal was found by Cheapflights users on 10/13. 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.
Mon 12/85:35 pmDEN - BSL
2 stops14h 30mLufthansa
Mon 12/1510:35 amBSL - DEN
2 stops16h 52mLufthansa
Deal found 10/13$724

Cheap flight deals from Colorado to Basel

Keep the following information in mind while searching for Colorado to Basel flight deals. Data was last updated October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$498
(Expedia)

One-way from

$403
(Kiwi.com)
Provider with most accurate pricing for Denver Intl-Basel (EAP) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Basel (EAP) flights.
Search Deals
From Colorado to Basel EuroAirport Swiss
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One-way flight from Colorado to Basel EuroAirport Swiss
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Basel 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 14, 2025.
Use the filters below to find and compare flights from Colorado to Basel EuroAirport Swiss that are best for you.

Fly from

Colorado

Fly to

Basel

Route

Depart

Return

Price

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Wed 11/26

5:25 pm-6:40 pm

1 stop17h 15m

Basel EuroAirport Swiss

Wed 12/3

6:20 am-3:30 pm

1 stop17h 10m

$488

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Mon 12/1

5:25 pm-6:15 pm

1 stop16h 50m

Basel EuroAirport Swiss

Sun 12/14

1:30 pm-3:30 pm

1 stop34h 00m

$538

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Thu 4/2

6:35 pm-6:25 pm

1 stop15h 50m

Basel EuroAirport Swiss

Tue 4/14

6:45 am-4:25 pm

1 stop17h 40m

$637

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Fri 3/27

6:25 pm-9:30 pm

1 stop20h 05m

Basel EuroAirport Swiss

Tue 3/31

7:10 pm-4:25 pm

1 stop29h 15m

$637

Colorado SpringsBasel

COS - BSL

COSBSL

Colorado Springs

Fri 3/27

1:35 pm-4:05 pm

2 stops19h 30m

Basel EuroAirport Swiss

Tue 3/31

11:10 am-6:30 pm

2 stops15h 20m

$645

AspenBasel

ASE - BSL

ASEBSL

Aspen Pitkin County

Fri 3/27

12:22 pm-4:05 pm

2 stops20h 43m

Basel EuroAirport Swiss

Tue 3/31

11:10 am-9:54 pm

2 stops18h 44m

$645

VailBasel

EGE - BSL

EGEBSL

Vail Eagle County

Fri 3/27

1:30 pm-4:05 pm

2 stops19h 35m

Basel EuroAirport Swiss

Tue 3/31

8:25 am-8:05 pm

2 stops19h 40m

$645

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Sat 11/22

8:45 pm-3:45 pm

3 stops35h 00m

$403

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Wed 11/19

5:25 pm-4:05 pm

2 stops14h 40m

$516

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Sat 11/22

5:30 pm-12:30 pm

2 stops35h 00m

$526

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 15 results
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Best time to book a flight from Colorado to Basel

Have a flexible travel schedule? Discover the best time to fly to Basel from Colorado 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 Colorado to Basel EuroAirport Swiss

What is the cheapest time of day to fly from CO to BSL?

Find hourly flight availability from Colorado to Basel. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 14, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 68% on flights from Colorado to Basel EuroAirport Swiss by exploring options for tickets in the morning.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Basel. 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 into for flights to Basel from Colorado?

    If you book a flight to Basel from Colorado, you will be flying to 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 Colorado to Basel EuroAirport Swiss?

    Departing from Colorado to Basel EuroAirport Swiss will take you 17h 15m. There are 5101 mi between Colorado and Basel EuroAirport Swiss. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Colorado to Basel EuroAirport Swiss one-way?

    The cheapest airlines for a one-way flight from Colorado to Basel EuroAirport Swiss are Lufthansa ($516), United Airlines ($526), and Turkish Airlines ($551).

  • What are the most popular routes from Colorado to Basel EuroAirport Swiss?

    Most travelers choose Denver Intl - Basel EuroAirport Swiss, Aspen Pitkin County - Basel EuroAirport Swiss or Colorado Springs - Basel EuroAirport Swiss when deciding on the best route from Colorado to Basel EuroAirport Swiss.

  • Can I find deals for flights from Colorado to Basel that include hotel bookings?

    Yes. In addition to deals on Colorado to Basel flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Basel?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Basel.

  • Can I find deals for business class flights from Colorado to Basel?

    Yes. Cheapflights offers flight deals from Colorado to Basel 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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Top airline flying from Colorado to Basel

Discover the top airline that operate flights from Colorado to Basel. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$667Average$1,125FlexibilityNo cancel feeOn-time76%

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