HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$491+ Cheap flights from Luxembourg (LUX) to Denver (DEN)

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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
LUX — DEN
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Luxembourg to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Luxembourg to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Luxembourg (LUX) 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 July 30, 2025.

Round-trip from

$491
(Billigflug)

Popular in

November

Cheapest in

April

Average price

$1,018
From Luxembourg to Denver Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($80 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Luxembourg to Denver

Cheapest flights from Luxembourg to Denver
Explore the most affordable flight options available from Luxembourg to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Billigflug deal was found by Cheapflights users on 7/30. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/89:05 pmLUX - DEN
1 stop27h 20mMultiple Airlines
Mon 9/155:37 pmDEN - LUX
2 stops19h 43mMultiple Airlines
Deal found 7/30$491
This Billigflug deal was found by Cheapflights users on 7/30. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/89:05 pmLUX - DEN
1 stop27h 20mBritish Airways
Mon 9/156:35 pmDEN - LUX
1 stop18h 45mBritish Airways
Deal found 7/30$510
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Mon 8/119:05 pmLUX - DEN
1 stop27h 20mAmerican Airlines
Tue 8/195:06 pmDEN - LUX
2 stops19h 44mAmerican Airlines
Deal found 7/29$513
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/410:40 amLUX - DEN
1 stop12h 55mLufthansa
Wed 9/173:50 pmDEN - LUX
1 stop14h 00mLufthansa
Deal found 7/30$622
This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/42:30 pmLUX - DEN
2 stops35h 48mAir Canada
Thu 9/1811:25 amDEN - LUX
2 stops38h 15mAir Canada
Deal found 7/30$640
This SWISS deal was found by Cheapflights users on 7/30. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:10 pmLUX - DEN
1 stop29h 10mSWISS
Thu 9/188:20 pmDEN - LUX
2 stops53h 20mSWISS
Deal found 7/30$665
This Air France deal was found by Cheapflights users on 7/30. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:30 amLUX - DEN
1 stop16h 00mAir France
Thu 9/185:40 pmDEN - LUX
1 stop20h 05mAir France
Deal found 7/30$678
This Delta deal was found by Cheapflights users on 7/29. 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 9/46:10 amLUX - DEN
2 stops21h 36mDelta
Thu 9/187:05 amDEN - LUX
2 stops18h 55mDelta
Deal found 7/29$689
This United Airlines deal was found by Cheapflights users on 7/29. 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 9/59:45 amLUX - DEN
1 stop16h 55mUnited Airlines
Tue 9/165:00 pmDEN - LUX
2 stops18h 35mUnited Airlines
Deal found 7/29$720

Cheapflights Fare Finder

 
Customize your flight search to find flights from Luxembourg 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 July 30, 2025.
Use the filters below to find and compare flights from Luxembourg to Denver that are best for you.

Fly from

Luxembourg

Fly to

Denver

Route

Depart

Return

Price

LuxembourgDenver

LUX - DEN

LUXDEN

Luxembourg

Mon 9/8

9:05 pm-4:25 pm

1 stop27h 20m

Denver Intl

Mon 9/15

5:37 pm-9:20 pm

2 stops19h 43m

$491

LuxembourgDenver

LUX - DEN

LUXDEN

Luxembourg

Mon 9/8

9:05 pm-4:25 pm

1 stop27h 20m

Denver Intl

Mon 9/15

6:35 pm-9:20 pm

1 stop18h 45m

$510

LuxembourgDenver

LUX - DEN

LUXDEN

Luxembourg

Mon 8/11

9:05 pm-4:25 pm

1 stop27h 20m

Denver Intl

Tue 8/19

5:06 pm-8:50 pm

2 stops19h 44m

$513

LuxembourgDenver

LUX - DEN

LUXDEN

Luxembourg

Thu 9/4

10:40 am-3:35 pm

1 stop12h 55m

Denver Intl

Wed 9/17

3:50 pm-1:50 pm

1 stop14h 00m

$622

LuxembourgDenver

LUX - DEN

LUXDEN

Luxembourg

Thu 9/4

2:30 pm-6:18 pm

2 stops35h 48m

Denver Intl

Thu 9/18

11:25 am-9:40 am

2 stops38h 15m

$640

LuxembourgDenver

LUX - DEN

LUXDEN

Luxembourg

Thu 9/4

7:10 pm-4:20 pm

1 stop29h 10m

Denver Intl

Thu 9/18

8:20 pm-9:40 am

2 stops53h 20m

$665

LuxembourgDenver

LUX - DEN

LUXDEN

Luxembourg

Thu 9/4

7:30 am-3:30 pm

1 stop16h 00m

Denver Intl

Thu 9/18

5:40 pm-9:45 pm

1 stop20h 05m

$678

LuxembourgDenver

LUX - DEN

LUXDEN

Luxembourg

Thu 9/4

6:10 am-7:46 pm

2 stops21h 36m

Denver Intl

Thu 9/18

7:05 am-10:00 am

2 stops18h 55m

$689

LuxembourgDenver

LUX - DEN

LUXDEN

Luxembourg

Fri 9/5

9:45 am-6:40 pm

1 stop16h 55m

Denver Intl

Tue 9/16

5:00 pm-7:35 pm

2 stops18h 35m

$720

LuxembourgDenver

LUX - DEN

LUXDEN

Luxembourg

Sat 9/27

2:30 pm-11:57 pm

2 stops17h 27m

$683

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Luxembourg to Denver

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

What is the cheapest month to book a flight from Luxembourg to Denver?

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

How much does it cost to fly round-trip from Luxembourg to Denver?

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 July 30, 2025.
Read through reviews of airlines operating flights from Luxembourg to Denver, such as Delta, Air France, and SWISS. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

Find useful and relevant information for your journey from Luxembourg 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 Luxembourg to Denver round-trip?

    Currently priced at $510, British Airways will fly you from Luxembourg to Denver and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Lufthansa - these airlines can fly you to your destination from $513 and $622, respectively. British Airways is currently priced 38% below the average price you’ll pay for this route.

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

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

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.