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$489+ Cheap flights from Basel EuroAirport Swiss (BSL) to Colorado

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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — DEN
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$595
(American Airlines)

One-way from

$489
(Kiwi.com)

Popular in

September

Cheapest in

February
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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One-way flight from Basel EuroAirport Swiss to Colorado
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Highest demand for flights based on searches. 6% potential increase in price ($53 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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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 March 28, 2025.

This American Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 9/116:10 amBSL - DEN
1 stop18h 15mAmerican Airlines
Thu 9/256:35 pmDEN - BSL
1 stop20h 15mAmerican Airlines
Deal found 3/27$595
This British Airways deal was found by Cheapflights users on 3/27. 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 9/116:10 amBSL - DEN
1 stop18h 15mBritish Airways
Thu 9/256:48 pmDEN - BSL
2 stops20h 02mBritish Airways
Deal found 3/27$597
This Delta deal was found by Cheapflights users on 3/27. 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.
Wed 9/106:15 amBSL - DEN
2 stops23h 21mDelta
Wed 9/2410:45 amDEN - BSL
2 stops14h 45mDelta
Deal found 3/27$611
This Air France deal was found by Cheapflights users on 3/27. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/112:25 pmBSL - DEN
2 stops17h 22mMultiple Airlines
Wed 9/2410:45 amDEN - BSL
2 stops14h 45mMultiple Airlines
Deal found 3/27$620
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Sun 5/1111:30 amBSL - DEN
2 stops18h 04mUnited Airlines
Sun 5/184:15 pmDEN - BSL
1 stop19h 20mUnited Airlines
Deal found 3/27$698
This Lufthansa deal was found by Cheapflights users on 3/27. 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 9/128:25 amBSL - DEN
1 stop13h 10mLufthansa
Fri 9/265:59 pmDEN - BSL
1 stop11h 46mLufthansa
Deal found 3/27$701
This Expedia deal was found by Cheapflights users on 3/27. 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.
Sat 4/268:20 amBSL - COS
2 stops18h 18mLufthansa
Sat 5/33:40 pmCOS - BSL
2 stops38h 00mLufthansa
Deal found 3/27$723
This Turkish Airlines deal was found by Cheapflights users on 3/27. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:55 pmBSL - DEN
1 stop31h 00mTurkish Airlines
Sat 9/277:50 pmDEN - BSL
1 stop29h 50mTurkish Airlines
Deal found 3/27$789
This KLM deal was found by Cheapflights users on 3/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/72:25 pmBSL - DEN
2 stops17h 22mKLM
Thu 10/232:20 pmDEN - BSL
2 stops15h 30mKLM
Deal found 3/27$825
This Air Canada deal was found by Cheapflights users on 3/27. 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.
Mon 9/811:30 amBSL - DEN
2 stops30h 48mAir Canada
Fri 9/269:58 amDEN - BSL
2 stops16h 57mAir Canada
Deal found 3/27$910
This Air France deal was found by Cheapflights users on 3/27. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1110:10 amBSL - DEN
1 stop13h 20mAir France
Fri 9/2610:45 amDEN - BSL
2 stops14h 45mAir France
Deal found 3/27$922
This Austrian Airlines deal was found by Cheapflights users on 3/27. 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.
Sun 5/118:25 pmBSL - DEN
2 stops29h 14mAustrian Airlines
Sun 5/187:45 amDEN - BSL
2 stops41h 55mAustrian Airlines
Deal found 3/27$969

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 March 28, 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

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 9/11

6:10 am-4:25 pm

1 stop18h 15m

Denver Intl

Thu 9/25

6:35 pm-10:50 pm

1 stop20h 15m

$595

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 9/11

6:10 am-4:25 pm

1 stop18h 15m

Denver Intl

Thu 9/25

6:48 pm-10:50 pm

2 stops20h 02m

$597

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 9/10

6:15 am-9:36 pm

2 stops23h 21m

Denver Intl

Wed 9/24

10:45 am-9:30 am

2 stops14h 45m

$611

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 9/11

2:25 pm-11:47 pm

2 stops17h 22m

Denver Intl

Wed 9/24

10:45 am-9:30 am

2 stops14h 45m

$620

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sun 5/11

11:30 am-9:34 pm

2 stops18h 04m

Denver Intl

Sun 5/18

4:15 pm-7:35 pm

1 stop19h 20m

$698

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Fri 9/12

8:25 am-1:35 pm

1 stop13h 10m

Denver Intl

Fri 9/26

5:59 pm-1:45 pm

1 stop11h 46m

$701

BaselColorado Springs

BSL - COS

BSLCOS

Basel EuroAirport Swiss

Sat 4/26

8:20 am-6:38 pm

2 stops18h 18m

Colorado Springs

Sat 5/3

3:40 pm-1:40 pm

2 stops38h 00m

$723

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Fri 9/12

6:55 pm-5:55 pm

1 stop31h 00m

Denver Intl

Sat 9/27

7:50 pm-9:40 am

1 stop29h 50m

$789

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Mon 9/8

11:30 am-10:18 am

2 stops30h 48m

Denver Intl

Fri 9/26

9:58 am-10:55 am

2 stops16h 57m

$910

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 9/11

10:10 am-3:30 pm

1 stop13h 20m

Denver Intl

Fri 9/26

10:45 am-9:30 am

2 stops14h 45m

$922

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 18 results
1
2

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

Rainfall in Colorado by month

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

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

Temperature in Colorado by month

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

If weather is an important factor for your trip to Colorado, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated March 28, 2025.
See what other customers who have flown with Delta, Austrian Airlines and Air France from Basel to Colorado have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.5
Good
769 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.4
Good
1,424 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Turkish Airlines
7.3
Good
3,744 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    One-way options have recently been found by users for as low as $737 on American Airlines. Other airlines that offer cheap prices include British Airways from $738 and Delta from $749 one-way.

  • 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.

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

    Currently, October is the cheapest month in which you can book a flight from Basel EuroAirport Swiss to Colorado (average of $197). Flying from Basel EuroAirport Swiss to Colorado in March is currently the most expensive (average of $278). 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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