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$418+ Cheap flights from Basel EuroAirport Swiss (BSL) to Denver (DEN)

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
BSL — DEN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Basel to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Basel (BSL) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$575
(British Airways)

One-way from

$418
(Kiwi.com)

Popular in

September

Cheapest in

February

Average price

$772
From Basel EuroAirport Swiss to Denver Intl
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One-way flight from Basel EuroAirport Swiss to Denver Intl
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Highest demand for flights based on searches. 3% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Basel to Denver

Cheapest flights from Basel to Denver
Explore the most affordable flight options available from Basel to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This British Airways deal was found by Cheapflights users on 6/10. 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 11/146:40 amBSL - DEN
1 stop16h 45mBritish Airways
Sun 11/1612:32 pmDEN - BSL
2 stops18h 28mBritish Airways
Deal found 6/10$575
This Expedia deal was found by Cheapflights users on 6/11. 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.
Thu 10/26:10 amBSL - DEN
2 stops20h 35mMultiple Airlines
Sat 10/186:35 pmDEN - BSL
1 stop15h 50mMultiple Airlines
Deal found 6/11$614
This Delta deal was found by Cheapflights users on 6/12. 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.
Thu 10/210:15 amBSL - DEN
2 stops19h 25mDelta
Sat 10/184:00 pmDEN - BSL
2 stops17h 50mDelta
Deal found 6/12$700
This Expedia deal was found by Cheapflights users on 6/11. 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.
Thu 10/26:15 amBSL - DEN
2 stops19h 54mKLM
Sat 10/184:40 pmDEN - BSL
2 stops21h 00mKLM
Deal found 6/11$708
This Lufthansa deal was found by Cheapflights users on 6/12. 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 7/218:25 amBSL - DEN
1 stop15h 10mLufthansa
Mon 8/114:15 pmDEN - BSL
1 stop12h 10mLufthansa
Deal found 6/12$739
This Air Canada deal was found by Cheapflights users on 6/12. 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 7/218:25 amBSL - DEN
2 stops21h 03mAir Canada
Mon 8/119:40 amDEN - BSL
2 stops17h 10mAir Canada
Deal found 6/12$802
This United Airlines deal was found by Cheapflights users on 6/10. 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 7/259:45 amBSL - DEN
2 stops21h 45mUnited Airlines
Fri 8/17:17 pmDEN - BSL
2 stops40h 18mUnited Airlines
Deal found 6/10$805
This Austrian Airlines deal was found by Cheapflights users on 6/12. 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 7/278:25 pmBSL - DEN
2 stops54h 10mAustrian Airlines
Sun 8/311:25 amDEN - BSL
2 stops24h 20mAustrian Airlines
Deal found 6/12$1,113
This American Airlines deal was found by Cheapflights users on 6/10. 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 stops36h 01mAmerican Airlines
Sat 8/22:06 pmDEN - BSL
2 stops44h 14mAmerican Airlines
Deal found 6/10$1,234

Cheapflights Fare Finder

Customize your flight search to find flights from Basel to Denver 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 June 12, 2025.
Use the filters below to find and compare flights from Basel EuroAirport Swiss to Denver that are best for you.

Fly from

Basel

Fly to

Denver

Route

Depart

Return

Price

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Fri 11/14

6:40 am-3:25 pm

1 stop16h 45m

Denver Intl

Sun 11/16

12:32 pm-3:00 pm

2 stops18h 28m

$575

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 10/2

6:10 am-6:45 pm

2 stops20h 35m

Denver Intl

Sat 10/18

6:35 pm-6:25 pm

1 stop15h 50m

$614

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 10/2

10:15 am-9:40 pm

2 stops19h 25m

Denver Intl

Sat 10/18

4:00 pm-5:50 pm

2 stops17h 50m

$700

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 10/2

6:15 am-6:09 pm

2 stops19h 54m

Denver Intl

Sat 10/18

4:40 pm-9:40 pm

2 stops21h 00m

$708

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Mon 7/21

8:25 am-3:35 pm

1 stop15h 10m

Denver Intl

Mon 8/11

4:15 pm-12:25 pm

1 stop12h 10m

$739

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Mon 7/21

8:25 am-9:28 pm

2 stops21h 03m

Denver Intl

Mon 8/11

9:40 am-10:50 am

2 stops17h 10m

$802

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Fri 7/25

9:45 am-11:30 pm

2 stops21h 45m

Denver Intl

Fri 8/1

7:17 pm-7:35 pm

2 stops40h 18m

$805

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sun 7/27

8:25 pm-6:35 pm

2 stops54h 10m

Denver Intl

Sun 8/3

11:25 am-7:45 pm

2 stops24h 20m

$1,113

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Sat 7/12

6:35 am-10:36 am

2 stops36h 01m

Denver Intl

Sat 8/2

2:06 pm-6:20 pm

2 stops44h 14m

$1,234

BaselDenver

BSL - DEN

BSLDEN

Basel EuroAirport Swiss

Thu 10/2

1:30 pm-5:21 pm

3 stops35h 51m

$418

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 12 results
1
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Best time to book a flight from Basel to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver 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 Denver

Rainfall in Denver by month

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

In terms of precipitation, rainfall in Denver 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 Denver when rainfall is around 0.5 in.

Temperature in Denver by month

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

If weather is an important factor for your trip to Denver, 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 Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
802 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

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 Basel to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Basel EuroAirport Swiss to Denver round-trip?

    Cheapflights users have booked flights from Basel EuroAirport Swiss to Denver round-trip from $575. Other airlines that can offer you cheap pricing are Delta, from $700, and KLM, from $708.

  • Can I find deals for flights from Basel to Denver that include hotel bookings?

    Yes. In addition to deals on Basel to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Basel to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Basel to Denver.

  • Can I find deals for business class flights from Basel to Denver?

    Yes. Cheapflights offers flight deals from Basel to Denver 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 Denver?

    Currently, October is the cheapest month in which you can book a flight from Basel EuroAirport Swiss to Denver (average of $197). Flying from Basel EuroAirport Swiss to Denver 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

Traveling to a place near Basel EuroAirport Swiss?

Book flights to Basel EuroAirport Swiss if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Brighton
Silverthorne
Thornton
Frisco
Grand Lake
Broomfield
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs
Greeley
Limon

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