DEN - LUX

$603 Find Cheap Flights from Denver to Luxembourg

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Luxembourg departing on 8/19. 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 Luxembourg

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

Cheap Flights from Denver to Luxembourg (DEN-LUX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Luxembourg 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 Luxembourg

Tue, Aug 19 - Tue, Aug 26
United Airlines Logo
8:25 pm - 7:35 pmDEN-LUX
15h 10m1 stop
United Airlines Logo
9:50 am - 6:35 pmLUX-DEN
16h 45m1 stop
$603United Airlines
Find Deal
Tue, Aug 19 - Tue, Aug 26
United Airlines Logo
5:59 pm - 7:35 pmDEN-LUX
17h 36m2 stops
United Airlines Logo
9:50 am - 6:35 pmLUX-DEN
16h 45m1 stop
$607United Airlines
Find Deal
Tue, Aug 19 - Tue, Aug 26
United Airlines Logo
8:25 pm - 7:35 pmDEN-LUX
15h 10m1 stop
United Airlines Logo
9:50 am - 12:28 amLUX-DEN
22h 38m3 stops
$613United Airlines
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Wed, Aug 20 - Wed, Aug 27
SWISS Logo
5:50 pm - 9:40 amDEN-LUX
31h 50m1 stop
SWISS Logo
10:30 am - 4:20 pmLUX-DEN
13h 50m1 stop
$677SWISS
Find Deal
Wed, Aug 20 - Wed, Aug 27
SWISS Logo
5:50 pm - 9:40 amDEN-LUX
31h 50m1 stop
SWISS Logo
2:45 pm - 9:20 pmLUX-DEN
38h 35m2 stops
$687SWISS
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Fri, Sep 26 - Fri, Oct 10
TAP AIR PORTUGAL Logo
2:30 pm - 4:55 pmDEN-LUX
18h 25m2 stops
TAP AIR PORTUGAL Logo
5:45 pm - 9:49 pmLUX-DEN
60h 04m2 stops
$750TAP AIR PORTUGAL
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Fri, Sep 26 - Fri, Oct 10
 Logo
7:45 am - 9:40 amDEN-LUX
17h 55m2 stops
 Logo
10:45 am - 3:35 pmLUX-DEN
12h 50m1 stop
Fri, Dec 19 - Sun, Dec 28
TAP AIR PORTUGAL Logo
1:46 pm - 4:50 pmDEN-LUX
43h 04m2 stops
TAP AIR PORTUGAL Logo
5:40 pm - 11:04 pmLUX-DEN
37h 24m2 stops
$1,078TAP AIR PORTUGAL
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Tue, Jul 22 - Fri, Aug 8
 Logo
11:35 am - 4:10 pmDEN-LUX
20h 35m2 stops
 Logo
8:15 am - 3:35 pmLUX-DEN
15h 20m1 stop
$1,158
Find Deal
Tue, Jul 22 - Fri, Aug 8
Lufthansa Logo
4:15 pm - 12:10 pmDEN-LUX
11h 55m1 stop
Lufthansa Logo
6:15 am - 3:35 pmLUX-DEN
17h 20m1 stop
$1,183Lufthansa
Find Deal
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KAYAK's insights & trends for Denver to Luxembourg flights

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

What’s the cheapest day of the week to fly from Denver to Luxembourg?

The average price of all round-trip flights from Denver to Luxembourg clicked on KAYAK for each day over the last 12 months.

When flying from Denver to Luxembourg, you should consider leaving on a Saturday and avoid Thursdays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Thursdays and the most expensive ones on Saturdays.

What is the cheapest month to fly from Denver to Luxembourg?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Luxembourg, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Luxembourg is April, where tickets cost $723 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,526 and $1,155 respectively.

Good to know

Low seasonFebruary
High seasonMay
Cheapest flight$603
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Denver to Luxembourg

When to book flights from Denver to Luxembourg

Are your dates flexible? Find out the best times to travel from Denver to Luxembourg 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 flights from Denver to Luxembourg

  • What is the cheapest flight from Denver to Luxembourg?

    In the last 3 days, the lowest price for a flight from Denver to Luxembourg was $643 for a one-way ticket and $603 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Denver and on arrival in Luxembourg.

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

    Denver and Luxembourg are both served by 1 main airport. You will leave Denver from Denver Intl and will be arriving at Luxembourg.

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

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

  • Which airline alliances offer flights from Denver to Luxembourg?

    Star Alliance is the only airline alliance operating flights between Denver and Luxembourg.

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

    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 Luxembourg.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Luxembourg 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 Luxembourg?

    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 Luxembourg with an airline and back to Denver with another airline. Booking your flights between Denver and LUX 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 Luxembourg?

    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 Luxembourg 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 Luxembourg

 
See real verified KAYAK customer reviews for airlines flying from Denver to Luxembourg. 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 Luxembourg? 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 7193 reviews
6.8Comfort
6.4Entertainment
7.0Boarding
6.3Food
7.6Crew
Airline reviews

We were charged for luggage, and our ticket was with Lufthansa and was supposed to include luggage fees. So our experience was a bit bad. Also, the flight was about 45 minutes late arriving.

4.0 OkayEdmond, Jul 2025EWR - BCN
Read more Lufthansa reviews

We were charged for luggage, and our ticket was with Lufthansa and was supposed to include luggage fees. So our experience was a bit bad. Also, the flight was about 45 minutes late arriving.

Flight was great only departure was delayed to saome ground crew issues

It was freezing. I asked crew member for a blanket and was told it might be in front of plane but I never got one. I turned off all the vents but still froze.

Cheapest airlines I have ever been on. I got downgraded and never got on united. I got rerouted through Vancouver onto jetwesf

Flight was 1.5 hours late to depart so changed flights to Swiss Air.

The United Airlines crew that operated this flight was subpar. They didn’t

Very small and uncomfortable seats, Hard to hear entertainment system sound. Horrible food. Staff doesn't care much about the passengers. 2nd time they didn't give me my vegetarian meal. They asked me regular food with meat. The airline and staff was from United airlines.

Checkin took along timen only.few angents available at.checkin desk. Customer support over phone no existence

At baggage claim, I was given the wrong printed ticket. The ticket belonged to another passenger for a different flight — to Zurich instead of Frankfurt (layover). I was even allowed to pass security, and when I asked the Lufthansa employee if I was on the correct flight, and why it was changed. The employee said everything was correct and I should board. When I got on the plane, there was someone in my seat, and the crew on the plane finally realized that I was on the wrong plane. When I got off the plane, nobody was willing to help, and the security refused to provide my original printed ticket. That was until I showed them that I took a photo of the ticket; once they realized I had photographic evidence, they were suddenly ready to help me. The Lufthansa employee began communicating with other airlines and found a flight that would take me to my destination via Polish Airlines. I was required to once again go through security, re-check my bag, and once again pay for my checked bag and weight overage fees. This experience was incredibly stressful and very frustrating, as you can imagine. A Lufthansa employee told me I would be eligible for a refund. Please tell me what steps I need to take in order to make that happen. Thank you!

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

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

Information on your arrival and departure airports

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