DEN - BSL

$508 Find Cheap Flights from Denver to Basel

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Basel departing on 11/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Basel EuroAirport Swiss

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Basel, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Basel, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Denver to Basel (DEN-BSL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Basel that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Basel

Mon, Dec 1 - Sun, Dec 14
British Airways Logo
5:25 pm - 6:15 pmDEN-BSL
16h 50m1 stop
British Airways Logo
4:25 pm - 3:30 pmBSL-DEN
31h 05m1 stop
$621British Airways
Find Deal
Mon, Dec 1 - Sun, Dec 14
British Airways Logo
12:27 pm - 2:35 pmDEN-BSL
18h 08m2 stops
British Airways Logo
6:35 am - 3:30 pmBSL-DEN
16h 55m1 stop
$626British Airways
Find Deal
Mon, Dec 1 - Sun, Dec 14
British Airways Logo
5:25 pm - 6:15 pmDEN-BSL
16h 50m1 stop
British Airways Logo
1:30 pm - 10:20 pmBSL-DEN
16h 50m2 stops
$632British Airways
Find Deal
Mon, Dec 1 - Sun, Dec 14
American Airlines Logo
12:26 pm - 2:35 pmDEN-BSL
18h 09m2 stops
American Airlines Logo
1:30 pm - 11:57 pmBSL-DEN
18h 27m2 stops
$634American Airlines
Find Deal
Tue, Dec 9 - Wed, Dec 17
Lufthansa Logo
4:20 pm - 12:30 pmDEN-BSL
12h 10m1 stop
Lufthansa Logo
10:35 am - 4:00 pmBSL-DEN
13h 25m1 stop
$685Lufthansa
Find Deal
Tue, Dec 9 - Wed, Dec 17
Lufthansa Logo
4:20 pm - 12:30 pmDEN-BSL
12h 10m1 stop
Lufthansa Logo
1:10 pm - 9:56 pmBSL-DEN
16h 46m2 stops
$705Lufthansa
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
9:20 pm - 7:40 pmDEN-BSL
15h 20m1 stop
United Airlines Logo
9:50 am - 2:35 pmBSL-DEN
12h 45m1 stop
$763United Airlines
Find Deal
Sun, Oct 12 - Mon, Oct 20
United Airlines Logo
4:15 pm - 7:35 pmDEN-BSL
19h 20m1 stop
United Airlines Logo
11:30 am - 11:57 pmBSL-DEN
20h 27m2 stops
$967United Airlines
Find Deal
Sat, Oct 18 - Mon, Oct 20
Turkish Airlines Logo
7:50 pm - 9:40 amDEN-BSL
29h 50m1 stop
Turkish Airlines Logo
6:55 pm - 5:55 pmBSL-DEN
31h 00m1 stop
$1,028Turkish Airlines
Find Deal
Sun, Sep 28 - Sat, Oct 4
Turkish Airlines Logo
7:50 pm - 6:00 pmDEN-BSL
38h 10m1 stop
Turkish Airlines Logo
10:35 am - 5:55 pmBSL-DEN
39h 20m1 stop
$1,138Turkish Airlines
Find Deal

Everything you should know

Top airlines
British Airways
Cheapest • from $621 (round-trip)
Lufthansa
Best reviews • 6.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$621
British Airways
Mon 12/1Sun 12/14
DEN - BSL • 1 stop
Cheapest one-way
$508
Lufthansa
Sun 11/23
DEN - BSL • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Basel!
Booking Insights

KAYAK's insights & trends for Denver to Basel flights

Get data-powered insights and trends into flights from Denver to Basel to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Denver to Basel?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Denver to Basel were found on British Airways ($621) and American Airlines ($634).

Good to know

Cheapest flight$508
Flight from Denver to Basel

When to book flights from Denver to Basel

Are your dates flexible? Find out the best times to travel from Denver to Basel based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Denver to Basel flights

  • What is the cheapest flight from Denver to Basel EuroAirport Swiss?

    In the last 3 days, the lowest price for a flight from Denver to Basel EuroAirport Swiss was $508 for a one-way ticket and $621 for a round-trip.

  • Do I need a passport to fly between Denver and Basel?

    A passport is required to fly from Denver to Basel.

  • Which airports will I be using when flying from Denver to Basel?

    On your way to Basel, you’ll fly out from Denver Intl. You’ll be landing at Basel EuroAirport Swiss.

  • Which aircraft models fly most regularly from Denver to Basel?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Basel?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Denver and Basel, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Denver to Basel?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Basel.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Basel?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Basel from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Basel?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Basel with an airline and back to Denver with another airline. Booking your flights between Denver and BSL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Basel?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Basel from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Denver to Basel

 
See real verified KAYAK customer reviews for airlines flying from Denver to Basel. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Basel? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.8
LufthansaOverall score based on 7407 reviews
6.3Food
6.8Comfort
6.4Entertainment
7.0Boarding
7.6Crew
Airline reviews

I liked Quiet people around me. Crew could have helped people with overhead luggage so they aren't moving other peoples bags around and causing problems for people that had there bags there first

6.0 GoodAnonymous, Sep 2025ORD - MUC
Read more Lufthansa reviews

I liked Quiet people around me. Crew could have helped people with overhead luggage so they aren't moving other peoples bags around and causing problems for people that had there bags there first

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

The plane was delayed by two hours in Chicago which led to us missing the next flight. Lufthansa rebooked the flight and booked us a hotel for the night in Frankfurt. The level of customer service and getting us taken care of was superb. The flight crew and the service on the ground was superb.

It was a short flight, everything was good with it.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Stop charging for alcohol overseas flights and start taking cash again not everyone wants to pay with card if the person is bigger give him seat on the outside seats not the middle in between the people is common sense and mainly if you fly for Lufthansa provides the sam service and experience...

good entertainment package but rather small seats for business class

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Booked Economy but it translated to economy light for Lufthansa so now we are stuck paying an extra $75 per person both ways for our checked bags. If I had known that, I would have never booked these tickets because it came out to be more than other options. The booking in the kayak side clearly says Economy and has a link to the inormation for Lufthansa which states Economy included a checked bag. Super annoyed about that.

The flight from Dulles to Munich was just okay. The seats were comfortable and extra foot room was noticeable in comfort plus. Disappointed in the booking in so much I requested an aisle seat and then was assigned a middle seat. The food was inedible. Movie choices were moderate. I usually fly Delta, but this WA flight was cheaper. Next time, I'll happily pay the extra to fly Delta.

Everything you need to know for your flight from Denver to Basel

Information on your arrival and departure airports

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