$257 Find Cheap Flights from Denver to Luxembourg

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 Luxembourg departing on 9/1. 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, 0 bags

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Flight Deals

Book Cheap Denver to Luxembourg Plane Tickets

 
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, Sep 1 - Tue, Sep 22
Multiple Airlines Logo
9:40 am - 10:00 am
DEN
-
LUX
16h 20m
2 stops
Multiple Airlines Logo
6:05 am - 4:58 pm
LUX
-
DEN
18h 53m
2 stops
$753Multiple Airlines
Sun, Oct 18 - Thu, Oct 22
United Airlines Logo
4:05 pm - 4:15 pm
DEN
-
LUX
16h 10m
1 stop
United Airlines Logo
8:20 am - 1:35 pm
LUX
-
DEN
13h 15m
1 stop
$757United Airlines
Tue, Sep 1 - Tue, Sep 22
Multiple Airlines Logo
5:40 pm - 2:00 pm
DEN
-
LUX
12h 20m
1 stop
Multiple Airlines Logo
10:15 am - 11:08 pm
LUX
-
DEN
20h 53m
2 stops
$760Multiple Airlines
Sun, Oct 18 - Thu, Oct 22
United Airlines Logo
8:00 am - 4:15 pm
DEN
-
LUX
24h 15m
2 stops
United Airlines Logo
8:20 am - 3:40 pm
LUX
-
DEN
15h 20m
1 stop
$762United Airlines
Sun, Oct 18 - Thu, Oct 22
Air Canada Logo
11:35 am - 1:25 pm
DEN
-
LUX
17h 50m
2 stops
Air Canada Logo
10:15 am - 6:46 pm
LUX
-
DEN
16h 31m
2 stops
$772Air Canada
Tue, Sep 1 - Tue, Sep 22
Lufthansa Logo
5:40 pm - 2:00 pm
DEN
-
LUX
12h 20m
1 stop
Lufthansa Logo
8:10 pm - 1:45 pm
LUX
-
DEN
25h 35m
1 stop
$779Lufthansa
Fri, Oct 9 - Wed, Oct 21
Multiple Airlines Logo
5:40 pm - 2:00 pm
DEN
-
LUX
12h 20m
1 stop
Multiple Airlines Logo
8:20 am - 11:08 pm
LUX
-
DEN
22h 48m
2 stops
$800Multiple Airlines
Mon, Aug 3 - Mon, Aug 24
American Airlines Logo
5:00 am - 10:35 am
DEN
-
LUX
21h 35m
2 stops
American Airlines Logo
4:50 pm - 4:30 pm
LUX
-
DEN
31h 40m
1 stop
$804American Airlines
Mon, Aug 3 - Mon, Aug 24
Lufthansa Logo
4:15 pm - 4:10 pm
DEN
-
LUX
15h 55m
1 stop
Lufthansa Logo
8:10 pm - 1:45 pm
LUX
-
DEN
25h 35m
1 stop
$810Lufthansa
Fri, Oct 9 - Wed, Oct 21
Multiple Airlines Logo
4:05 pm - 2:00 pm
DEN
-
LUX
13h 55m
2 stops
Multiple Airlines Logo
6:25 am - 4:58 pm
LUX
-
DEN
18h 33m
2 stops
$816Multiple Airlines
Booking Insights

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 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 January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,101 and $1,026 respectively.

Good to know

Low seasonApril
Cheapest flight$257
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Denver to Luxembourg

FAQs - booking Luxembourg flights

  • 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 from Denver to Luxembourg 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 from Denver to Luxembourg with an airline and back with another airline.

  • 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 from Denver to Luxembourg up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Denver to Luxembourg

 
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 8015 reviews
6.4Entertainment
7.0Boarding
7.6Crew
6.3Food
6.8Comfort
Airline reviews

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

10.0 ExcellentAnonymous, May 2026
ORD - FRA
Read more Lufthansa reviews

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

Perfect airline, super friendly, great service, tasty food. Would fly again.

Parents with permanently crying baby on board. Neither parents nor crew did anything to calm the baby. The food was extremely disappointing. Seafood stew was very, very small! Not even appetizer size! Seat had a gap in the back. Had to use a pillow to fill it.

Food choices limited & not enticing Seats quite uncomfortable & difficult to control

Definitely get premium economy on a flight this long if you can. Your legs and while body will thank you.

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

24 hour delays aren’t even heard in 3rd world countries with archaic transportation systems. I’m never flying American Airlines again.

3.5 hr delay leaving Pittsburgh, notifications for which were incomplete and untimely. Connecting flight was automatically switched to one requiring more than a 30 hour layover! After waiting in a long queue, customer service reduced layover to 11 hours and also set up an earlier standby. The standby had empty seats, but the gate agent couldn't change our tickets! On top of all that my luggage was lost and has yet to even be located, much less returned 5 (FIVE!) days later. Too bad there's no rating below poor.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

The seats are extra cramped if you are taller than 5’8! Spring for the extra legroom seats for sure if you have a long flight!

Very disappointed with British Airways. It has been over 24 hours and I still have not received my checked baggage or any proper update. Customer support has been unresponsive, making the situation even more frustrating. Poor baggage handling and lack of communication seriously impacted my travel experience.

All the above categories was great. Seats entirely too cramped.

Flight was good but temp in the cabin was cold.

Departure was delayed leading to late arrival, 25 min wait for a gate. Basically, missed all our connections & had to be rebooted, which was a very long process.

I like American Airlines and their safety record. They provide quality service and a feel safe enough to prefer American Airlines over other carriers even if I have to pay a little more.

Good flight, no turbulence. I felt safe and comfortable which is really important when I am just a passenger.

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

Information on your arrival and departure airports