--- title: "Billund to Denver cheap flights from $504 (BLL to DEN) - Expedia" description: "Cheap Flights from Billund (BLL) to Denver (DEN) start at $504 for one-way and $759 for round trip. Earn your airline miles on top of our rewards!" canonical: "https://www.expedia.com/lp/flights/bll/den/billund-to-denver" language: en-US market: US currency: USD prices_as_of: 2026-11-14T05:45:10Z --- # $504 Cheap Flights from Billund (BLL) to Denver (DEN) ![An escalator in a modern building with geometric wall patterns and overhead lighting.](https://images.trvl-media.com/place/5129540/2bacbc37-ca58-4ac2-9d2f-734c1a54e4f9.jpg?impolicy=fcrop&w=1200&h=500&q=medium) [View $504 flight on Wed, Apr 7, 2027](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:4/7/2027TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:503.87&airProductToken=AQpmCjEIwoIBEgM4MDkY4Vog64kBKKboqQMwj-mpAzhPQABYAWoFTk9CQUdyCE9MTjVDOUI0CjEIwoIBEgMyMTkY64kBIINpKJPwqQMw5vSpAzhPQAFYAWoFTk9CQUdyCE9MTjVDOUI0EgoIARABGAEqAkJBGAEiBAgBEAEoAigDMA0) Photo by Photo Courtesy of Denver International Airport ## Popular airlines from Billund (BLL) to Denver Intl. Airport (DEN) [Air France](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/28/2026TANYT&leg2=from:DEN,to:BLL,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AF"}}]) [Lufthansa](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/28/2026TANYT&leg2=from:DEN,to:BLL,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) [Delta](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/28/2026TANYT&leg2=from:DEN,to:BLL,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) [SAS](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/28/2026TANYT&leg2=from:DEN,to:BLL,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"SK"}}]) [KLM](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/28/2026TANYT&leg2=from:DEN,to:BLL,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) [British Airways](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/28/2026TANYT&leg2=from:DEN,to:BLL,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) [United](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/28/2026TANYT&leg2=from:DEN,to:BLL,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) ### Be in the know Get alerts if flight prices drop or rise\* ### Book smarter Save up to 30% on select hotels after you book a flight\* ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) Find the cheapest flights on Expedia from (BLL) to (DEN). Flight ticket prices change frequently based on availability and demand. We send price‑drop alerts to make air travel simple and flexible. The lowest one-way fare found on Expedia for this route in the past 7 days starts at $504 for travel on April 7, 2027. ## Cheap Flights from Billund to Denver (BLL-DEN) Prices were available within the past 7 days and start at $504 for one-way flights and $759 for roundtrip, for the period specified. Prices and availability are subject to change. All deals One way Roundtrip [Select United flight, departing Wed, Nov 25 from Billund to Denver, returning Mon, Dec 7, priced at $759 Found 3 days ago](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/25/2026TANYT&leg2=from:DEN,to:BLL,departure:12/7/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:758.89&airProductToken=AQqIAQpCCNWCARIEOTUzNRjhWiClBCiviZ4DMISKngM4S0AAWAFqCjFfYmFzaWNlY29yCEtYSFBBWEJRegoIzJABEgQ5NTM1CkII1YIBEgQ4ODc4GKUEIINpKLqMngMwq5GeAzhLQABYAWoKMV9iYXNpY2Vjb3IIS1hIUEFYQlF6CgjMkAESBDg4NzgKiAEKQgjVggESBDg4NzkYg2kgpQQomZmfAzDTnZ8DOEtAAFgBagoxX2Jhc2ljZWNvcghLWEhQQVhCUXoKCMyQARIEODg3OQpCCNWCARIEOTMyNRilBCDhWijAoJ8DMJChnwM4S0AAWAFqCjFfYmFzaWNlY29yCEtYSFBBWEJRegoIzJABEgQ5MzI1EgoIAhABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) Wed, Nov 25 - Mon, Dec 7 · BLL · DEN · Roundtrip [Select Lufthansa flight, departing Wed, Nov 25 from Billund to Denver, returning Mon, Dec 7, priced at $760 Found 3 days ago](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/25/2026TANYT&leg2=from:DEN,to:BLL,departure:12/7/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:759.21&airProductToken=AQpwCjAIzJABEgM4NDMY4VogpQQor4meAzCEip4DOEtAAFgBagVFTFQwMHIIS1hIUEFYQlEKPAjMkAESBDc1ODYYpQQgg2kowoueAzC4kJ4DOEtAAFgBagVFTFQwMHIIS1hIUEFYQlF6CQjVggESAzE4MQpkCjAIzJABEgM0NDcYg2kgpQQomZmfAzDTnZ8DOEtAAFgBagVFTFQwMHIIS1hIUEFYQlEKMAjMkAESAzg0MBilBCDhWijAoJ8DMJChnwM4S0AAWAFqBUVMVDAwcghLWEhQQVhCURIKCAEQARgBKgJMSBgBIgQIARABKAIoAygEMAs) Wed, Nov 25 - Mon, Dec 7 · BLL · DEN · Roundtrip [Select United flight, departing Wed, Nov 25 from Billund to Denver, returning Mon, Dec 7, priced at $764 Found 3 days ago](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/25/2026TANYT&leg2=from:DEN,to:BLL,departure:12/7/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:763.39&airProductToken=AQqIAQpCCNWCARIEOTUzNRjhWiClBCiviZ4DMISKngM4S0AAWAFqCjFfYmFzaWNlY29yCEtYSFBBWEJRegoIzJABEgQ5NTM1CkII1YIBEgQ4ODc4GKUEIINpKLqMngMwq5GeAzhLQABYAWoKMV9iYXNpY2Vjb3IIS1hIUEFYQlF6CgjMkAESBDg4NzgKswEKNgjVggESBDIzMjkYg2kgrhwo1JWfAzDylp8DOEtAAFgBagoxX2Jhc2ljZWNvcghLWEhQQVhCUQo1CNWCARIDOTQ0GK4cIKUEKNuXnwMwz5ufAzhLQABYAWoKMV9iYXNpY2Vjb3IIS1hIUEFYQlEKQgjVggESBDk1MzIYpQQg4VoowpyfAzCSnZ8DOEtAAFgBagoxX2Jhc2ljZWNvcghLWEhQQVhCUXoKCMyQARIEOTUzMhIKCAIQARgBKgJVQRgBIgQIARABKAIoAygEMAs) Wed, Nov 25 - Mon, Dec 7 · BLL · DEN · Roundtrip [Select Lufthansa flight, departing Tue, Dec 15 from Billund to Denver, returning Sat, Jan 16, priced at $764 Found 1 day ago](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:12/15/2026TANYT&leg2=from:DEN,to:BLL,departure:1/16/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:763.89&airProductToken=AQpkCjAIzJABEgM4MzcY4VogpQQomuyfAzDv7J8DOEtAAFgBagVFTFQwMHIIS1hIUEFYQlEKMAjMkAESAzQ0NhilBCCDaSi67Z8DMKvynwM4S0AAWAFqBUVMVDAwcghLWEhQQVhCUQpkCjAIzJABEgM0NDcYg2kgpQQomduiAzDT36IDOEtAAFgBagVFTFQwMHIIS1hIUEFYQlEKMAjMkAESAzg0MhilBCDhWijx5KIDMMHlogM4S0AAWAFqBUVMVDAwcghLWEhQQVhCURIKCAEQARgBKgJMSBgBIgQIARABKAIoAygEMAs) Tue, Dec 15 - Sat, Jan 16 · BLL · DEN · Roundtrip [Select United flight, departing Wed, Nov 25 from Billund to Denver, returning Mon, Dec 7, priced at $767 Found 3 days ago](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/25/2026TANYT&leg2=from:DEN,to:BLL,departure:12/7/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:766.89&airProductToken=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) Wed, Nov 25 - Mon, Dec 7 · BLL · DEN · Roundtrip [Select Lufthansa flight, departing Tue, Dec 15 from Billund to Denver, returning Sat, Jan 16, priced at $769 Found 1 day ago](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:12/15/2026TANYT&leg2=from:DEN,to:BLL,departure:1/16/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:768.39&airProductToken=AQpkCjAIzJABEgM4MzcY4VogpQQomuyfAzDv7J8DOEtAAFgBagVFTFQwMHIIS1hIUEFYQlEKMAjMkAESAzQ0NhilBCCDaSi67Z8DMKvynwM4S0AAWAFqBUVMVDAwcghLWEhQQVhCUQqvAQo9CMyQARIENzUxORiDaSCIGCjw16IDML7ZogM4S0AAWAFqBUVMVDAwcghLWEhQQVhCUXoKCNWCARIEMjA4Nwo8CMyQARIEOTQxMRiIGCClBCim2qIDMIHeogM4S0AAWAFqBUVMVDAwcghLWEhQQVhCUXoJCNWCARIDOTg5CjAIzJABEgM4MzYYpQQg4Voowt6iAzCS36IDOEtAAFgBagVFTFQwMHIIS1hIUEFYQlESCggBEAEYASoCTEgYASIECAEQASgCKAMoBDAL) Tue, Dec 15 - Sat, Jan 16 · BLL · DEN · Roundtrip [Select Lufthansa flight, departing Wed, Nov 25 from Billund to Denver, returning Mon, Dec 7, priced at $769 Found 3 days ago](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/25/2026TANYT&leg2=from:DEN,to:BLL,departure:12/7/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:768.99&airProductToken=AQqiAQozCMyQARIDODQzGOFaIKUEKK-JngMwhIqeAzhLQABYAWoIRUNPTElHSFRyCEtYSFBBWEJRCjQIzJABEgM0NTYYpQQgi7gBKJWLngMw0ZCeAzhLQAFYAWoIRUNPTElHSFRyCEtYSFBBWEJRCjUI1YIBEgQxMDI3GIu4ASCDaSj4kp4DMIuUngM4S0ABWAFqCEVDT0xJR0hUcghLWEhQQVhCUQpqCjMIzJABEgM0NDcYg2kgpQQomZmfAzDTnZ8DOEtAAFgBaghFQ09MSUdIVHIIS1hIUEFYQlEKMwjMkAESAzg0MBilBCDhWijAoJ8DMJChnwM4S0ABWAFqCEVDT0xJR0hUcghLWEhQQVhCURIKCAIQARgCKgJMSBgBIgQIARABKAIoAygEMAs) Wed, Nov 25 - Mon, Dec 7 · BLL · DEN · Roundtrip [Select Air Canada flight, departing Wed, Nov 25 from Billund to Denver, returning Mon, Dec 7, priced at $771 Found 3 days ago](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:11/25/2026TANYT&leg2=from:DEN,to:BLL,departure:12/7/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:770.19&airProductToken=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) Wed, Nov 25 - Mon, Dec 7 · BLL · DEN · Roundtrip [Select Delta flight, departing Thu, Jun 17 from Billund to Denver, returning Tue, Aug 17, priced at $804 Found 5 days ago](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:6/17/2027TANYT&leg2=from:DEN,to:BLL,departure:8/17/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:803.39&airProductToken=AQq0AQpCCMSYARIEOTQ3NBjhWiCAkwEo0P-vAzCbgLADOEVAAFgBaglNQUlOQkFTSUNyCFhZNDhUQkxBegoIy5gBEgQxMjkwCjYIxJgBEgMxMzMYgJMBIOO0ASiYgbADMJmFsAM4RUABWAFqCU1BSU5CQVNJQ3IIWFk0OFRCTEEKNgjEmAESBDI0MzEY47QBIINpKJ-HsAMw4oiwAzhFQAFYAWoJTUFJTkJBU0lDcghYWTQ4VEJMQQqvAQo1CMSYARIEMjIzNRiDaSDgXCjts7UDMJu1tQM4RUAAWAFqCU1BSU5CQVNJQ3IIWFk0OFRCTEEKMwjEmAESAjkwGOBcIOIwKI-2tQMwl7q1AzhFQAFYAWoJTUFJTkJBU0lDcghYWTQ4VEJMQQpBCMSYARIEODQ3NRjiMCDhWijnurUDMNC7tQM4RUABWAFqCU1BSU5CQVNJQ3IIWFk0OFRCTEF6CgjBjAESBDE3NjISCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) Thu, Jun 17 - Tue, Aug 17 · BLL · DEN · Roundtrip [Select British Airways flight, departing Wed, Dec 23 from Billund to Denver, returning Thu, Dec 31, priced at $820 Found 6 days ago](https://www.expedia.com/Flights-Search?leg1=from:BLL,to:DEN,departure:12/23/2026TANYT&leg2=from:DEN,to:BLL,departure:12/31/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:819.89&airProductToken=AQpoCjIIwoIBEgM4MjMY4Vog64kBKJDLoAMw%5FsugAzhPQABYAWoFTk9CQUdyCU9LTjRDOEI0UAoyCMKCARIDMjE5GOuJASCDaSja0qADMLLXoAM4T0ABWAFqBU5PQkFHcglPS040QzhCNFAKaAoyCMKCARIDMjE4GINpIOuJASiFp6EDMKuroQM4T0AAWAFqBU5PQkFHcglPSE40QzhCNFAKMgjCggESAzgyMhjriQEg4Vooi6-hAzD0r6EDOE9AAVgBagVOT0JBR3IJT0hONEM4QjRQEgoIARABGAEqAkJBGAEiBAgBEAEoAigDMA0) Wed, Dec 23 - Thu, Dec 31 · BLL · DEN · Roundtrip ## Book with confidence ### Billund to Denver Flights #### The cheapest times to fly from Billund to Denver On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Billund to Denver are during the month of November. You can find some of the cheapest flights from Billund to Denver with Expedia's search tool and vast selection of airlines. #### The best time to book a flight from Billund to Denver Sunday is one of the best days to book for cheap flights from Billund to Denver: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance. #### How to find cheap round-trip tickets from Billund to Denver Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Billund to Denver in 2026\. You can also book with separate airlines for your outbound and return journeys, from $504 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference\*. This is available for a small fee, and is free to One Key Gold and Platinum tier members. Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Billund to Denver flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps. You could also save big by booking one of Expedia's [vacation packages](https://www.expedia.com/package-deals). Bundling together your Billund to Denver airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures. *\*Terms apply.* *Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages.* ## Frequently Asked Questions ### How much does a flight from Billund (BLL) to Denver, CO (DEN-Denver Intl.) cost? You can find cheap one-way flights from $504 and cheap return flights $759 Billund (BLL) to Denver, CO (DEN-Denver Intl.) with Expedia. Roundtrip flights usually range from $667 to $4613\. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Billund (BLL) to Denver, CO (DEN-Denver Intl.) ticket fares go up or down. *\*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.* ### What is the cheapest month to fly from Billund (BLL) to Denver, CO (DEN-Denver Intl.)? The cheapest month to fly from BLL to DEN is November when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route. ### Which airlines fly direct from Billund (BLL) to Denver, CO (DEN-Denver Intl.)? Enter BLL to DEN and your travel dates, then apply the 'Nonstop' filter to see only direct flights. ### What is the cheapest airline that flies from Billund (BLL) to Denver, CO (DEN-Denver Intl.)? Delta is one of the cheapest airlines offering connecting flights from Billund (BLL) to Denver (DEN), with round-trip tickets starting from around $645 with a layover in Amsterdam (AMS). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget. *\*Prices based on flights available on Expedia in the last year.* ### How do I find cheap flights from Billund (BLL) to Denver, CO (DEN-Denver Intl.)? To find a cheap flight from Billund (BLL) to Denver, CO (DEN-Denver Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up [Price Tracking](https://www.expedia.com/why/price-tracking) and receive alerts when fares go up or down. ### What is the best time to fly from Billund (BLL) to Denver, CO (DEN-Denver Intl.)? The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience. ### What is the earliest flight from Billund (BLL) to Denver, CO (DEN-Denver Intl.)? The earliest flight from Billund Airport (BLL) to Denver International Airport (DEN) typically departs at around 6:00 AM, operated by KLM and Delta. This seasonal service is active in November, and an early flight can help you make the most of your time in Colorado. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search. ### What day of the week has the most flights from Billund (BLL) to Denver, CO (DEN-Denver Intl.)? The busiest day for flights from (BLL) to Denver Intl. (DEN) is a Sunday, with around 24 flights. This gives you plenty of options for your travel plans. Major airlines on this route include Lufthansa and Hop!. ### What are the most popular departure times for flights from Billund (BLL) to Denver, CO (DEN-Denver Intl.)? The most popular departure times for flights from Billund (BLL) to Denver (DEN) are in the early morning, from 6am to 9am. About 42% of passengers prefer this time window. Many major carriers, including KLM, Lufthansa and Air France, offer flights during this window. This timing works well because it allows you to arrive in Denver with plenty of time to explore the city. ### How long does it take to fly from Billund (BLL) to Denver, CO (DEN-Denver Intl.)? A flight from BLL to DEN with a layover takes around 15 hours 20 minutes, with the route covering approximately 4,782 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic. ### Can you fly business or first class from Billund (BLL) to Denver, CO (DEN-Denver Intl.)? Select the "Business class" and "First class" filters when looking for BLL to DEN flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip. ### How do I earn miles on a Billund (BLL) to Denver, CO (DEN-Denver Intl.) flight with Expedia? It's easy to earn miles on a Billund (BLL) to Denver, CO (DEN-Denver Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of [One Key™](https://www.expedia.com/welcome-one-key), you can also earn OneKeyCash™\* on top of your airline miles when you book with Expedia. \*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands. ### What airports do you fly into for Denver from BLL (BLL)? From BLL (BLL), you can fly into Denver Intl. (DEN) to reach Denver. Some flights may connect through major hubs like Schiphol (AMS), Frankfurt Intl. (FRA), Roissy-Charles de Gaulle (CDG) before reaching Denver. Compare routes and airports on Expedia to find the best flight options for your travel plans. ### Is it cheaper to buy a plane ticket from Billund (BLL) to Denver, CO (DEN-Denver Intl.) at the last minute? Typically, booking a last minute flight from Billund (BLL) to Denver, CO (DEN-Denver Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare. ### Is it cheaper to book a Billund (BLL) to Denver, CO (DEN-Denver Intl.) flight and hotel package? Securing a Billund (BLL) to Denver, CO (DEN-Denver Intl.) [Denver Vacation Packages](https://www.expedia.com/denver.d178254.destination-travel-guides) is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars. ### Can I cancel or change the date of my flight from Billund (BLL) to Denver, CO (DEN-Denver Intl.)? If you booked your Billund (BLL) to Denver, CO (DEN-Denver Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in [your itinerary](https://www.expedia.com/trips) or confirmation email. Or, head to our [Customer Service portal](https://www.expedia.com/helpcenter/) if you'd like more information. ## Travel information | Origin airport | Billund | | ------------------- | --------------------------------------------------------------------------------------- | | Destination airport | Denver Intl. Airport | | Distance | 4,781 miles away | | Airlines serving | Air France, Lufthansa, Delta, SAS, KLM, British Airways, United, Air Canada, Icelandair | | Popular airline | Air France | | Roundtrip price | $759 | ## Explore a world of travel with Expedia - [Flights](?equalTargetTab=tab-0) - [Flights from Orlando (MCO) to Denver (DEN)](https://www.expedia.com/lp/flights/mco/den/orlando-to-denver) - [Flights from Rochester (ROC) to Denver (DEN)](https://www.expedia.com/lp/flights/roc/den/rochester-to-denver) - [Flights from Seattle (SEA) to Denver (DEN)](https://www.expedia.com/lp/flights/sea/den/seattle-to-denver) - [Flights from New York (NYC) to Denver (DEN)](https://www.expedia.com/lp/flights/nyc/den/new-york-to-denver) - [Flights from Boise (BOI) to Denver (DEN)](https://www.expedia.com/lp/flights/boi/den/boise-to-denver) - [Flights from Burlington (BTV) to Denver (DEN)](https://www.expedia.com/lp/flights/btv/den/burlington-to-denver) - [Flights from Boston (BOS) to Denver (DEN)](https://www.expedia.com/lp/flights/bos/den/boston-to-denver) - 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Airport (EWR) to Denver (DEN)](https://www.expedia.com/lp/flights/ewr/den/newark-liberty-intl-airport-to-denver) \*Available to One Key members. ## Other language versions ```yaml hreflang: x-default: https://www.expedia.com/lp/flights/bll/den/billund-to-denver da-DK: https://www.expedia.dk/lp/fly/bll/den/billund-til-denver sv-SE: https://www.expedia.se/lp/flyg/bll/den/billund-till-denver ar: https://www.expedia.sa/lp/flights/bll/den/billund-to-denver de-DE: https://www.expedia.de/lp/fluge/bll/den/billund-nach-denver en-US: https://www.expedia.com/lp/flights/bll/den/billund-to-denver de-AT: https://www.expedia.at/lp/fluge/bll/den/billund-nach-denver es: https://www.expedia.com/es/lp/vuelos/bll/den/billund-a-denver ```