HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Billund

$415+ Cheap flights from Illinois to Billund (BLL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BLL
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Billund 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 Illinois to Billund

Cheapest flights from Illinois to Billund
Explore the most affordable flight options available from Illinois to Billund. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2026.

This United Airlines deal was found by Cheapflights users on 2/3. 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.
Sun 2/154:05 pm
ORD
-
BLL
1 stop10h 55m
United Airlines
Thu 2/196:30 am
BLL
-
ORD
1 stop13h 55m
United Airlines
Deal found 2/3$545
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Thu 3/128:00 am
ORD
-
BLL
2 stops19h 45m
United Airlines
Tue 3/1710:15 am
BLL
-
ORD
1 stop12h 05m
United Airlines
Deal found 2/3$547
This Air Canada deal was found by Cheapflights users on 2/3. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/158:40 pm
ORD
-
BLL
2 stops30h 00m
Air Canada
Thu 2/196:30 am
BLL
-
ORD
2 stops20h 40m
Air Canada
Deal found 2/3$557
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Thu 3/267:15 am
ORD
-
BLL
2 stops20h 30m
United Airlines
Sun 4/52:45 pm
BLL
-
ORD
2 stops31h 10m
United Airlines
Deal found 2/3$575
This Delta deal was found by Cheapflights users on 2/2. 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.
Tue 5/191:22 pm
MDW
-
BLL
2 stops13h 13m
Delta
Sun 5/246:00 am
BLL
-
MDW
2 stops18h 56m
Delta
Deal found 2/2$899
This Delta deal was found by Cheapflights users on 2/3. 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 3/1212:47 pm
MDW
-
BLL
2 stops14h 53m
Delta
Tue 3/176:00 am
BLL
-
MDW
2 stops17h 54m
Delta
Deal found 2/3$1,122

Find flight deals from Illinois to Billund

Keep the following information in mind while searching for Illinois to Billund flight deals. Data was last updated February 5, 2026.

Most accurate provider

AranGrant
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$545
(United Airlines)

One-way from

$415
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$550
Provider with most accurate pricing for Chicago (CHI)-Billund flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Billund flights.
Search Deals
From Illinois to Billund
Search Deals
One-way flight from Illinois to Billund
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($180 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Billund 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 February 5, 2026.
Use the filters below to find and compare flights from Illinois to Billund that are best for you.

Fly from

Illinois

Fly to

Billund

Route

Depart

Return

Price

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Sun 2/15

4:05 pm-10:00 am

1 stop10h 55m

Billund

Thu 2/19

6:30 am-1:25 pm

1 stop13h 55m

$545

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Thu 3/12

8:00 am-9:45 am

2 stops19h 45m

Billund

Tue 3/17

10:15 am-4:20 pm

1 stop12h 05m

$547

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Sun 2/15

8:40 pm-9:40 am

2 stops30h 00m

Billund

Thu 2/19

6:30 am-8:10 pm

2 stops20h 40m

$557

ChicagoBillund

MDW - BLL

MDWBLL

Chicago Midway

Tue 5/19

1:22 pm-9:35 am

2 stops13h 13m

Billund

Sun 5/24

6:00 am-5:56 pm

2 stops18h 56m

$899

ChicagoBillund

MDW - BLL

MDWBLL

Chicago Midway

Thu 3/12

12:47 pm-9:40 am

2 stops14h 53m

Billund

Tue 3/17

6:00 am-5:54 pm

2 stops17h 54m

$1,122

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Sun 3/15

4:20 pm-10:00 am

1 stop11h 40m

$415

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Best time to book a flight from Illinois to Billund

Have a flexible travel schedule? Discover the best time to fly to Billund from Illinois 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 Illinois to Billund
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Billund. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Billund from Illinois?

    If you book a flight to Billund from Illinois, you will be flying to Billund, which is the city’s only airport. Billund (BLL) is located 1.7 mi from the center of Billund.

  • How long is the flight from Illinois to Billund?

    A quick flight from Illinois to Billund can take about 10h 55m. United Airlines provides one of the quickest options available for as low as $545. The distance between Illinois and Billund is about 4136 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Illinois to Billund that include hotel bookings?

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

  • How can I find direct flights from Illinois to Billund?

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

  • Can I find deals for business class flights from Illinois to Billund?

    Yes. Cheapflights offers flight deals from Illinois to Billund by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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.

Alternative routes for Illinois to Billund

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Copenhagen flights
Newark to Copenhagen flights
Boston to Copenhagen flights
Los Angeles to Copenhagen flights
Dulles Intl to Copenhagen flights
O'Hare Intl to Copenhagen flights
San Francisco to Copenhagen flights
LaGuardia to Copenhagen flights
Atlanta to Copenhagen flights
Reagan-National to Copenhagen flights
Seattle to Copenhagen flights
Baltimore to Copenhagen flights
Philadelphia to Copenhagen flights
Minneapolis to Copenhagen flights
Detroit to Copenhagen flights
Miami to Copenhagen flights
Denver to Copenhagen flights
Midway to Copenhagen flights
Portland to Copenhagen flights
San Jose to Copenhagen flights
Raleigh to Copenhagen flights
San Diego to Copenhagen flights
Ontario to Copenhagen flights
Austin to Copenhagen flights
Burbank to Copenhagen flights
Santa Ana to Copenhagen flights
Tampa to Copenhagen flights
Dallas/Fort Worth to Copenhagen flights
Oakland to Copenhagen flights
Hobby to Copenhagen flights
Sky Harbor Intl to Copenhagen flights
Orlando to Copenhagen flights
Fort Lauderdale to Copenhagen flights
George Bush Intcntl to Copenhagen flights
Pittsburgh to Copenhagen flights
Nashville to Copenhagen flights
Salt Lake City to Copenhagen flights
Memphis to Copenhagen flights
Indianapolis to Copenhagen flights
Love Field to Copenhagen flights
Jacksonville to Copenhagen flights
Cleveland to Copenhagen flights
Charlotte to Copenhagen flights
Sacramento to Copenhagen flights
Honolulu to Copenhagen flights
Seattle to Billund flights
Cincinnati to Copenhagen flights
Syracuse to Copenhagen flights
St. Louis to Copenhagen flights
Asheville to Copenhagen flights

Top airline flying from Illinois to Billund

Discover the top airline that operate flights from Illinois to Billund. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$471Average$789FlexibilityNo cancel feeOn-time77%

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.