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$651+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — DEN
Mar 19 — Mar 261
Wed 3/19
Wed 3/26
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 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$651
(Delta)

Popular in

July

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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Highest demand for flights based on searches. 6% potential increase in price ($51 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($26 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 14, 2025.

This Delta deal was found by Cheapflights users on 3/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2510:15 amBSL - DEN
2 stops18h 07mDelta
Tue 9/910:45 amDEN - BSL
2 stops14h 45mDelta
Deal found 3/13$651
This United Airlines deal was found by Cheapflights users on 3/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2511:30 amBSL - DEN
1 stop12h 05mUnited Airlines
Tue 9/99:52 amDEN - BSL
2 stops15h 18mUnited Airlines
Deal found 3/13$694
This Lufthansa deal was found by Cheapflights users on 3/13. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2511:30 amBSL - DEN
1 stop12h 05mLufthansa
Tue 9/95:59 pmDEN - BSL
1 stop11h 41mLufthansa
Deal found 3/13$702
This British Airways deal was found by Cheapflights users on 3/13. 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 8/66:40 amBSL - DEN
2 stops18h 58mBritish Airways
Fri 8/154:59 pmDEN - BSL
2 stops21h 51mBritish Airways
Deal found 3/13$772
This American Airlines deal was found by Cheapflights users on 3/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/126:35 amBSL - DEN
2 stops22h 55mAmerican Airlines
Sat 8/22:05 pmDEN - BSL
2 stops48h 45mAmerican Airlines
Deal found 3/13$1,229
This CheapTickets.ch deal was found by Cheapflights users on 3/13. 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 CheapTickets.ch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/196:55 pmBSL - DEN
1 stop31h 00mTurkish Airlines
Fri 7/257:50 pmDEN - BSL
1 stop29h 50mTurkish Airlines
Deal found 3/13$4,356
This CheapTickets.ch deal was found by Cheapflights users on 3/13. 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 CheapTickets.ch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/311:00 pmBSL - DEN
1 stop13h 35mAustrian Airlines
Fri 6/63:50 pmDEN - BSL
1 stop13h 55mAustrian Airlines
Deal found 3/13$5,154

Find flights from Basel to Colorado within your budget

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 14, 2025.

Fly from

Basel

Fly to

Colorado

Route

Depart

Return

Price

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Mon 8/25

10:15 am-8:22 pm

2 stops18h 07m

Denver Intl

Tue 9/9

10:45 am-9:30 am

2 stops14h 45m

$651

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Mon 8/25

11:30 am-3:35 pm

1 stop12h 05m

Denver Intl

Tue 9/9

9:52 am-9:10 am

2 stops15h 18m

$694

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Mon 8/25

11:30 am-3:35 pm

1 stop12h 05m

Denver Intl

Tue 9/9

5:59 pm-1:40 pm

1 stop11h 41m

$702

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 8/6

6:40 am-5:38 pm

2 stops18h 58m

Denver Intl

Fri 8/15

4:59 pm-10:50 pm

2 stops21h 51m

$772

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 7/12

6:35 am-9:30 pm

2 stops22h 55m

Denver Intl

Sat 8/2

2:05 pm-10:50 pm

2 stops48h 45m

$1,229

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 7/19

6:55 pm-5:55 pm

1 stop31h 00m

Denver Intl

Sat 7/26

7:50 pm-9:40 am

1 stop29h 50m

$4,356

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 5/31

1:00 pm-6:35 pm

1 stop13h 35m

Denver Intl

Fri 6/6

3:50 pm-1:45 pm

1 stop13h 55m

$5,154

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Mon 5/26

6:05 am-1:25 pm

1 stop15h 20m

$664

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

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.

Travel insights for flights from Basel to Colorado

Get recent, data-driven insights about flights from Basel to Colorado including ideal travel times, pricing trends, and more.

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 14, 2025.
Delta
8.0
Very good
7,944 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

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
7,944 reviews
Delta
8.0
Very good
7,944 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

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
7.6
Good
766 reviews
Delta
8.0
Very good
7,944 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

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
8,623 reviews
Delta
8.0
Very good
7,944 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

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
3,756 reviews
Delta
8.0
Very good
7,944 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

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

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,944 reviews

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

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.

  • 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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