BLL - DEN

$539 Find Cheap Flights from Billund to Denver

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billund to Denver departing on 11/13. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billund to Denver, 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 Billund to Denver, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$539
Overall average: $598
Air Canada
Thu 11/13Mon 11/17
BLL - DEN • 2 stops
Cheapest one-way
Multiple Airlines
Fri 10/31
BLL - DEN • multi-stop
Top airlines
Air Canada
Cheapest • from $539 (round-trip)
Lufthansa
Best reviews • 6.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
6 weeks
in advance
Our data shows that travelers who book at least 6 weeks in advance save around 39% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 19% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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 Denver!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Billund to Denver (BLL-DEN)

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

Thu, Nov 13 - Mon, Nov 17
Air Canada Logo
6:30 am - 5:44 pmBLL-DEN
19h 14m2 stops
Air Canada Logo
8:45 am - 1:20 pmDEN-BLL
20h 35m2 stops
$539Air Canada
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Thu, Nov 13 - Mon, Nov 17
Lufthansa Logo
6:30 am - 4:00 pmBLL-DEN
17h 30m1 stop
Lufthansa Logo
5:45 pm - 11:20 pmDEN-BLL
21h 35m1 stop
$551Lufthansa
Find Deal
Fri, Dec 12 - Fri, Jan 2
United Airlines Logo
6:30 am - 7:55 pmBLL-DEN
21h 25m2 stops
United Airlines Logo
1:25 pm - 1:20 pmDEN-BLL
39h 55m2 stops
$587United Airlines
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Fri, Dec 12 - Fri, Jan 2
United Airlines Logo
10:25 am - 1:40 pmBLL-DEN
35h 15m1 stop
United Airlines Logo
1:25 pm - 1:20 pmDEN-BLL
39h 55m2 stops
$607United Airlines
Find Deal
Fri, Dec 12 - Fri, Jan 2
United Airlines Logo
10:25 am - 1:40 pmBLL-DEN
35h 15m1 stop
United Airlines Logo
3:55 pm - 9:40 amDEN-BLL
33h 45m1 stop
$628United Airlines
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Sun, Nov 16 - Sat, Nov 22
Multiple Airlines Logo
2:05 pm - 11:15 pmBLL-DEN
17h 10m2 stops
Multiple Airlines Logo
11:59 pm - 10:00 amDEN-BLL
26h 01m2 stops
$634Multiple Airlines
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Sun, Nov 16 - Sat, Nov 22
Multiple Airlines Logo
6:55 pm - 4:00 pmBLL-DEN
29h 05m1 stop
Multiple Airlines Logo
5:30 pm - 9:40 amDEN-BLL
56h 10m2 stops
$804Multiple Airlines
Find Deal
Fri, Dec 12 - Fri, Jan 2
Lufthansa Logo
6:30 am - 1:40 pmBLL-DEN
15h 10m1 stop
Lufthansa Logo
4:20 pm - 9:40 amDEN-BLL
33h 20m2 stops
$917Lufthansa
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Fri, Dec 12 - Fri, Jan 2
Lufthansa Logo
6:30 am - 4:30 pmBLL-DEN
18h 00m2 stops
Lufthansa Logo
4:20 pm - 9:40 amDEN-BLL
33h 20m2 stops
$927Lufthansa
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Thu, Dec 18 - Fri, Jan 2
Air France Logo
6:00 am - 6:58 pmBLL-DEN
20h 58m2 stops
Air France Logo
11:55 am - 1:45 pmDEN-BLL
17h 50m2 stops
$1,182Air France
Find Deal
Booking Insights

KAYAK's insights & trends for Billund to Denver flights

Get data-powered insights and trends into flights from Billund to Denver 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 Billund to Denver?

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

For Billund to Denver, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Denver back to Billund, the best deals are generally found on Tuesday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Billund to Denver, 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 Billund to Denver is February, where tickets cost $588 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $992 and $914 respectively.

How far in advance should I book a flight from Billund to Denver?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Billund to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Billund to Denver, you should book around 6 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

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Good to know

Low seasonJanuary
Cheapest flight$539
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Billund to Denver

When to book flights from Billund to Denver

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

  • What is the cheapest flight from Billund to Denver?

    In the last 3 days, the lowest price for a flight from Billund to Denver was $539 for a round-trip ticket.

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

    A passport is required to fly from Billund to Denver.

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

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

  • Which airline alliances offer flights from Billund to Denver?

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

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

    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 Billund to Denver.

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

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

    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 Denver with an airline and back to Billund with another airline. Booking your flights between Billund and DEN 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 Billund to Denver?

    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 Denver from Billund 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 Billund to Denver

 
See real verified KAYAK customer reviews for airlines flying from Billund to Denver. 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 Billund to Denver? 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 7541 reviews
6.4Entertainment
6.3Food
6.8Comfort
7.6Crew
7.0Boarding
Airline reviews

The seat space seemed small especially when the person ahead reclined but other than that, very good.

10.0 ExcellentAnonymous, Oct 2025FRA - ORD
Read more Lufthansa reviews

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

Everything went well. I will fly with Lufthansa again. And use Kayak whenever I book flights

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Food was poor quality and the screens for entertainment didn’t work properly

Food was much better than my outbound flight. On-time. Good service. I had a problem with my entertainment screen, but the attendant fixed it promptly.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

United lost my travel information and canceled my original flight. I had a seat assignment but was refused the booking. I had to prove that I went to Germany on United Very concerned about security that no one recorded my passport from Cleveland to NY and NY to Frankfurt I arrived at home at 12:30am on Saturday instead of 8pm I expect a full refund from United Please provide information to assure compensation

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

Information on your arrival and departure airports

Billund (BLL)
Denver (DEN)

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