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$398+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BSL
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$691
(oojo)

One-way from

$398
(CheapTickets.ch)

Popular in

June

Cheapest in

February

Average price

$744
Provider with most accurate pricing for Denver Intl-Basel (EAP) flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Basel (EAP) flights.
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From Colorado to Basel EuroAirport Swiss
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One-way flight from Colorado to Basel EuroAirport Swiss
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Highest demand for flights based on searches. 21% potential increase in price ($279 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($55 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 March 31, 2025.

This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:20 pmDEN - BSL
1 stop15h 10mUnited Airlines
Wed 12/32:15 pmBSL - DEN
2 stops35h 31mUnited Airlines
Deal found 3/30$678
This British Airways deal was found by Cheapflights users on 3/30. 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.
Fri 11/2812:32 pmDEN - BSL
2 stops17h 38mBritish Airways
Thu 12/46:10 amBSL - DEN
2 stops19h 30mBritish Airways
Deal found 3/30$687
This oojo deal was found by Cheapflights users on 3/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/127:50 pmDEN - BSL
1 stop29h 50mTurkish Airlines
Thu 8/286:55 pmBSL - DEN
1 stop31h 00mTurkish Airlines
Deal found 3/30$691
This Lufthansa deal was found by Cheapflights users on 3/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/74:25 pmDEN - BSL
1 stop19h 05mLufthansa
Sat 11/159:35 amBSL - DEN
1 stop13h 05mLufthansa
Deal found 3/30$718
This Air Canada deal was found by Cheapflights users on 3/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:05 pmDEN - BSL
2 stops54h 55mAir Canada
Fri 12/510:45 amBSL - DEN
2 stops30h 05mAir Canada
Deal found 3/30$759
This Austrian Airlines deal was found by Cheapflights users on 3/30. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/145:35 pmDEN - BSL
2 stops32h 05mAustrian Airlines
Wed 5/2110:20 amBSL - DEN
2 stops16h 20mAustrian Airlines
Deal found 3/30$1,538
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/512:04 amDEN - BSL
2 stops33h 16mMultiple Airlines
Mon 7/146:35 amBSL - DEN
1 stop17h 50mMultiple Airlines
Deal found 3/31$1,748

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 March 31, 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

Tue 8/12

7:50 pm-9:40 am

1 stop29h 50m

Basel EuroAirport Swiss

Thu 8/28

6:55 pm-5:55 pm

1 stop31h 00m

$691

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Tue 8/12

9:03 am-10:55 am

2 stops17h 52m

Basel EuroAirport Swiss

Thu 8/28

6:10 am-4:25 pm

1 stop18h 15m

$812

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Wed 5/14

4:15 pm-12:25 pm

1 stop12h 10m

Basel EuroAirport Swiss

Wed 5/21

9:45 am-6:40 pm

1 stop16h 55m

$818

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Sun 7/6

4:15 pm-7:35 pm

1 stop19h 20m

Basel EuroAirport Swiss

Mon 7/14

8:10 pm-7:29 pm

2 stops55h 19m

$824

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Wed 5/14

5:35 pm-9:40 am

2 stops32h 05m

Basel EuroAirport Swiss

Wed 5/21

10:20 am-6:40 pm

2 stops16h 20m

$1,538

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Sat 7/5

12:04 am-5:20 pm

2 stops33h 16m

Basel EuroAirport Swiss

Mon 7/14

6:35 am-4:25 pm

1 stop17h 50m

$1,748

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Sat 9/27

8:10 pm-9:05 pm

2 stops16h 55m

$398

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Thu 8/14

6:35 pm-6:25 pm

1 stop15h 50m

$645

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Thu 8/14

4:15 pm-12:25 pm

1 stop12h 10m

$674

DenverBasel

DEN - BSL

DENBSL

Denver Intl

Wed 8/13

12:57 am-10:55 am

2 stops25h 58m

$681

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

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 March 31, 2025.

When flying from Colorado to Basel EuroAirport Swiss, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Basel by month

Plan your trip to Basel by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Basel EuroAirport Swiss ranges from 1.9 - 3.4 inches per month. June is typically the wettest month, when rainfall can reach 3.4 in. February is typically the driest time to visit Basel EuroAirport Swiss when rainfall is around 1.9 in.

Temperature in Basel by month

Plan your trip to Basel by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Basel EuroAirport Swiss, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Basel

Get insights into the airlines that provide service to Basel. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Basel. Reviews last updated March 31, 2025.
Austrian Airlines
7.6
Good
770 reviews

Crew

8.1

Entertainment

6.7

Food

6.8

Boarding

7.6

Overall

7.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Austrian Airlines
7.6
Good
770 reviews
Austrian Airlines
7.6
Good
770 reviews

Crew

8.1

Entertainment

6.7

Food

6.8

Boarding

7.6

Overall

7.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
United Airlines
7.4
Good
8,614 reviews
Austrian Airlines
7.6
Good
770 reviews

Crew

8.1

Entertainment

6.7

Food

6.8

Boarding

7.6

Overall

7.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Turkish Airlines
7.3
Good
3,748 reviews
Austrian Airlines
7.6
Good
770 reviews

Crew

8.1

Entertainment

6.7

Food

6.8

Boarding

7.6

Overall

7.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Lufthansa
6.7
Okay
6,960 reviews
Austrian Airlines
7.6
Good
770 reviews

Crew

8.1

Entertainment

6.7

Food

6.8

Boarding

7.6

Overall

7.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
British Airways
6.6
Okay
6,713 reviews
Austrian Airlines
7.6
Good
770 reviews

Crew

8.1

Entertainment

6.7

Food

6.8

Boarding

7.6

Overall

7.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.

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.

  • 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 British Airways ($645), Lufthansa ($674), and United Airlines ($681).

  • 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.

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

    Currently, January is the cheapest month in which you can book a flight from Colorado to Basel EuroAirport Swiss (average of $545). Flying from Colorado to Basel EuroAirport Swiss in June is currently the most expensive (average of $1,132). 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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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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$582Average$1,125FlexibilityNo cancel feeOn-time76%
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