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$591+ 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — DEN
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$591
(British Airways)

Popular in

July

Cheapest in

February

Average price

$547
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. 9% potential increase in price ($83 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 February 20, 2025.

This British Airways deal was found by Cheapflights users on 2/18. 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 3/206:10 amBSL - DEN
2 stops22h 54mBritish Airways
Thu 3/276:30 pmDEN - BSL
1 stop13h 30mBritish Airways
Deal found 2/18$591
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Tue 10/216:45 amBSL - DEN
1 stop17h 40mAmerican Airlines
Thu 10/306:30 pmDEN - BSL
1 stop13h 30mAmerican Airlines
Deal found 2/19$616
This American Airlines deal was found by Cheapflights users on 2/19. 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 10/186:35 amBSL - DEN
1 stop17h 50mMultiple Airlines
Thu 10/306:30 pmDEN - BSL
1 stop13h 30mMultiple Airlines
Deal found 2/19$666
This Gotogate deal was found by Cheapflights users on 2/19. 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.
Sat 4/56:05 amBSL - DEN
1 stop15h 30mLufthansa
Sat 4/125:48 pmDEN - BSL
2 stops34h 37mLufthansa
Deal found 2/19$685
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 10/1711:30 amBSL - DEN
2 stops27h 07mUnited Airlines
Fri 10/3111:50 pmDEN - BSL
2 stops30h 40mUnited Airlines
Deal found 2/20$692
This Turkish Airlines deal was found by Cheapflights users on 2/20. 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.
Sat 10/1810:35 amBSL - DEN
1 stop39h 20mTurkish Airlines
Sat 11/18:35 pmDEN - BSL
1 stop30h 30mTurkish Airlines
Deal found 2/20$767
This KLM deal was found by Cheapflights users on 2/19. 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.
Mon 2/246:05 amBSL - DEN
2 stops21h 41mKLM
Sat 3/111:04 amDEN - BSL
2 stops15h 36mKLM
Deal found 2/19$968
This Austrian Airlines deal was found by Cheapflights users on 2/19. 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.
Sat 4/510:20 amBSL - DEN
2 stops39h 45mAustrian Airlines
Sat 4/1211:20 amDEN - BSL
2 stops38h 20mAustrian Airlines
Deal found 2/19$1,008
This United Airlines deal was found by Cheapflights users on 2/20. 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 9/2511:30 amBSL - COS
2 stops17h 47mUnited Airlines
Fri 10/171:15 pmCOS - BSL
2 stops15h 10mUnited Airlines
Deal found 2/20$1,016

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 February 20, 2025.

Fly from

Basel

Fly to

Colorado

Route

Depart

Return

Price

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 3/20

6:10 am-10:04 pm

2 stops22h 54m

Denver Intl

Thu 3/27

6:30 pm-3:00 pm

1 stop13h 30m

$591

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 3/20

6:10 am-4:25 pm

1 stop17h 15m

Denver Intl

Thu 3/27

6:30 pm-10:50 pm

1 stop21h 20m

$650

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 4/5

6:05 am-1:35 pm

1 stop15h 30m

Denver Intl

Sat 4/12

5:48 pm-12:25 pm

2 stops34h 37m

$685

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 3/22

11:05 am-10:45 pm

2 stops18h 40m

Denver Intl

Fri 3/28

11:48 am-8:55 am

2 stops14h 07m

$813

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 4/5

10:20 am-6:05 pm

2 stops39h 45m

Denver Intl

Sat 4/12

11:20 am-9:40 am

2 stops38h 20m

$1,008

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 4/5

6:00 am-6:16 pm

3 stops44h 16m

Denver Intl

Sat 4/12

8:45 am-6:40 pm

3 stops25h 55m

$1,062

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Wed 6/11

6:40 am-2:52 pm

2 stops16h 12m

$686

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Tue 6/3

10:20 am-6:35 pm

2 stops16h 15m

$749

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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 February 20, 2025.
See what other customers who have flown with Austrian Airlines, United Airlines and American Airlines 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.
Austrian Airlines
7.6
Good
773 reviews

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Boarding

7.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Austrian Airlines
7.6
Good
773 reviews
Austrian Airlines
7.6
Good
773 reviews

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Boarding

7.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

United Airlines
7.4
Good
8,766 reviews
Austrian Airlines
7.6
Good
773 reviews

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Boarding

7.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

American Airlines
7.2
Good
10,000 reviews
Austrian Airlines
7.6
Good
773 reviews

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Boarding

7.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

Lufthansa
6.7
Okay
6,984 reviews
Austrian Airlines
7.6
Good
773 reviews

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Boarding

7.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

British Airways
6.6
Okay
6,763 reviews
Austrian Airlines
7.6
Good
773 reviews

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Boarding

7.6

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

SOF - VIE

There were a couple of mishaps, but even with them their commitment to great service is noticed. The flight to US was delayd, but they provided a small voucher for food. Then the luggage didn't arrive because was rescheduled for the flight next day . Still, it was delivered 200 miles away within hours of the landing of the flight. I give them the highest evaluation because of their desire to make it right. BTW, the food was quite economical for a long haul flight - just a sandwich.

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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