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$488+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BSL
jun. 21 — jun. 281
sáb. 6/21
sáb. 6/28
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 junio 16, 2025.

Round-trip from

$551
(American Airlines)

One-way from

$488
(Cheapflightsfares)
From Colorado to Basel EuroAirport Swiss
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One-way flight from Colorado to Basel EuroAirport Swiss
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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 junio 16, 2025.

This American Airlines deal was found by Cheapflights users on 6/14. 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.
lun. 8/116:35 pmDEN - BSL
1 stop20h 15mAmerican Airlines
jue. 8/216:10 amBSL - DEN
1 stop18h 15mAmerican Airlines
Deal found 6/14$551
This Air Canada deal was found by Cheapflights users on 6/14. 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.
lun. 8/119:40 amDEN - BSL
2 stops17h 10mAir Canada
jue. 8/2111:30 amBSL - DEN
2 stops30h 51mAir Canada
Deal found 6/14$555
This British Airways deal was found by Cheapflights users on 6/14. 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.
lun. 8/115:06 pmDEN - BSL
2 stops17h 14mBritish Airways
jue. 8/216:10 amBSL - DEN
1 stop18h 15mBritish Airways
Deal found 6/14$557
This FlightHub deal was found by Cheapflights users on 6/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/124:15 pmDEN - BSL
1 stop12h 10mLufthansa
jue. 8/288:25 amBSL - DEN
1 stop15h 10mLufthansa
Deal found 6/14$581
This United Airlines deal was found by Cheapflights users on 6/14. 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.
mar. 8/129:40 amDEN - BSL
2 stops17h 10mUnited Airlines
jue. 8/2811:30 amBSL - DEN
2 stops18h 57mUnited Airlines
Deal found 6/14$596
This Gotogate deal was found by Cheapflights users on 6/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/157:50 pmDEN - BSL
1 stop38h 10mTurkish Airlines
mar. 7/2210:35 amBSL - DEN
1 stop39h 20mTurkish Airlines
Deal found 6/15$683
This Delta deal was found by Cheapflights users on 6/16. 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.
jue. 7/317:20 amDEN - BSL
2 stops18h 10mDelta
jue. 8/72:25 pmBSL - DEN
2 stops17h 55mDelta
Deal found 6/16$941
This United Airlines deal was found by Cheapflights users on 6/15. 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.
dom. 7/67:25 amEGE - BSL
2 stops28h 10mUnited Airlines
mié. 7/1611:25 amBSL - EGE
2 stops17h 15mUnited Airlines
Deal found 6/15$966
This United Airlines deal was found by Cheapflights users on 6/15. 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.
dom. 7/66:15 pmASE - BSL
2 stops17h 20mUnited Airlines
mié. 7/1611:25 amBSL - ASE
2 stops31h 30mUnited Airlines
Deal found 6/15$972
This Lufthansa deal was found by Cheapflights users on 6/15. 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.
jue. 7/101:30 pmASE - BSL
2 stops22h 05mLufthansa
jue. 7/176:05 amBSL - ASE
2 stops20h 17mLufthansa
Deal found 6/15$1,026
This American Airlines deal was found by Cheapflights users on 6/15. 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.
mié. 7/92:27 pmASE - BSL
2 stops24h 13mAmerican Airlines
jue. 7/176:10 amBSL - ASE
2 stops35h 40mAmerican Airlines
Deal found 6/15$1,065
This Mytrip deal was found by Cheapflights users on 6/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/299:40 amDEN - BSL
3 stops29h 15mMultiple Airlines
mar. 8/52:15 pmBSL - DEN
3 stops34h 05mMultiple Airlines
Deal found 6/14$1,070

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 junio 16, 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

lun. 8/11

6:35 pm-10:50 pm

1 stop20h 15m

Basel EuroAirport Swiss

jue. 8/21

6:10 am-4:25 pm

1 stop18h 15m

$551

DenverBasel

DEN - BSL

DENBSL

Denver Intl

lun. 8/11

9:40 am-10:50 am

2 stops17h 10m

Basel EuroAirport Swiss

jue. 8/21

11:30 am-10:21 am

2 stops30h 51m

$555

DenverBasel

DEN - BSL

DENBSL

Denver Intl

lun. 8/11

5:06 pm-6:20 pm

2 stops17h 14m

Basel EuroAirport Swiss

jue. 8/21

6:10 am-4:25 pm

1 stop18h 15m

$557

DenverBasel

DEN - BSL

DENBSL

Denver Intl

mar. 8/12

4:15 pm-12:25 pm

1 stop12h 10m

Basel EuroAirport Swiss

jue. 8/28

8:25 am-3:35 pm

1 stop15h 10m

$581

DenverBasel

DEN - BSL

DENBSL

Denver Intl

mar. 8/12

9:40 am-10:50 am

2 stops17h 10m

Basel EuroAirport Swiss

jue. 8/28

11:30 am-10:27 pm

2 stops18h 57m

$596

DenverBasel

DEN - BSL

DENBSL

Denver Intl

mar. 7/15

7:50 pm-6:00 pm

1 stop38h 10m

Basel EuroAirport Swiss

mar. 7/22

10:35 am-5:55 pm

1 stop39h 20m

$683

DenverBasel

DEN - BSL

DENBSL

Denver Intl

jue. 7/31

7:20 am-9:30 am

2 stops18h 10m

Basel EuroAirport Swiss

jue. 8/7

2:25 pm-12:20 am

2 stops17h 55m

$941

VailBasel

EGE - BSL

EGEBSL

Vail Eagle County

dom. 7/6

7:25 am-7:35 pm

2 stops28h 10m

Basel EuroAirport Swiss

mié. 7/16

11:25 am-8:40 pm

2 stops17h 15m

$966

AspenBasel

ASE - BSL

ASEBSL

Aspen Pitkin County

dom. 7/6

6:15 pm-7:35 pm

2 stops17h 20m

Basel EuroAirport Swiss

mié. 7/16

11:25 am-10:55 am

2 stops31h 30m

$972

AspenBasel

ASE - BSL

ASEBSL

Aspen Pitkin County

jue. 7/10

1:30 pm-7:35 pm

2 stops22h 05m

Basel EuroAirport Swiss

jue. 7/17

6:05 am-6:22 pm

2 stops20h 17m

$1,026

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 23 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 junio 16, 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 junio 16, 2025.
Read reviews from past customers who have flown Delta, Austrian Airlines and Air France from Colorado to Basel. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
804 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,466 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,801 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Turkish Airlines
7.3
Good
3,852 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 ($488), Lufthansa ($511), and Air France ($512).

  • 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 Vail Eagle County - 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.

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Alternative routes for Colorado to Basel

See prices for flight routes from nearby airports that may be better suited for you.
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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 junio 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$582Average$1,025FlexibilityNo cancel feeOn-time76%

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