HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Billund

$558+ 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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BLL
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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

Keep the following information in mind while searching for Illinois to Billund flight deals. Data was last updated April 2, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
1 star

Round-trip from

$596
(Finnair)

One-way from

$558
(Delta)

Popular in

June

Cheapest in

March

Average price

$632
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. 22% potential increase in price ($210 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find 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 April 2, 2025.

This Finnair deal was found by Cheapflights users on 4/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/610:25 pmORD - BLL
2 stops32h 00mFinnair
Wed 5/282:10 pmBLL - ORD
2 stops28h 35mFinnair
Deal found 4/1$596
This British Airways deal was found by Cheapflights users on 3/31. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:10 pmORD - BLL
1 stop14h 10mBritish Airways
Tue 9/165:05 pmBLL - ORD
2 stops23h 08mBritish Airways
Deal found 3/31$603
This Delta deal was found by Cheapflights users on 4/1. 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.
Mon 5/512:15 pmORD - BLL
2 stops15h 50mDelta
Tue 5/276:45 amBLL - ORD
1 stop15h 15mDelta
Deal found 4/1$614
This KLM deal was found by Cheapflights users on 4/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/234:50 pmORD - BLL
1 stop9h 45mKLM
Mon 4/286:35 pmBLL - ORD
1 stop26h 35mKLM
Deal found 4/1$622
This Delta deal was found by Cheapflights users on 4/1. 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.
Wed 4/3010:20 amMDW - BLL
2 stops16h 15mDelta
Tue 5/611:45 amBLL - MDW
2 stops17h 37mDelta
Deal found 4/1$636
This Lufthansa deal was found by Cheapflights users on 4/1. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/299:40 pmORD - BLL
1 stop18h 35mLufthansa
Mon 5/52:45 pmBLL - ORD
1 stop29h 10mLufthansa
Deal found 4/1$675
This United deal was found by Cheapflights users on 4/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/244:05 pmORD - BLL
2 stops14h 55mUnited Airlines
Tue 4/296:00 amBLL - ORD
2 stops15h 55mUnited Airlines
Deal found 4/1$691
This KLM deal was found by Cheapflights users on 4/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/65:10 pmORD - BLL
1 stop22h 15mMultiple Airlines
Wed 5/286:00 amBLL - ORD
1 stop15h 10mMultiple Airlines
Deal found 4/1$710
This oojo deal was found by Cheapflights users on 4/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2711:25 amORD - BLL
1 stop23h 45mTurkish Airlines
Sun 8/310:05 amBLL - ORD
1 stop30h 35mTurkish Airlines
Deal found 4/1$768
This Aeromexico deal was found by Cheapflights users on 4/1. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/251:31 pmORD - BLL
2 stops37h 54mAir France
Fri 8/86:00 amBLL - ORD
2 stops19h 40mAir France
Deal found 4/1$845
This Scandinavian Airlines deal was found by Cheapflights users on 4/1. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/67:10 amORD - BLL
3 stops19h 15mScandinavian Airlines
Wed 5/289:55 amBLL - ORD
2 stops21h 04mScandinavian Airlines
Deal found 4/1$851
This Aeromexico deal was found by Cheapflights users on 4/1. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/91:05 pmMDW - BLL
2 stops17h 30mAir France
Mon 8/410:15 amBLL - MDW
2 stops39h 13mAir France
Deal found 4/1$913

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 April 2, 2025.
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

Tue 5/6

10:25 pm-1:25 pm

2 stops32h 00m

Billund

Wed 5/28

2:10 pm-11:45 am

2 stops28h 35m

$596

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Tue 9/9

7:10 pm-4:20 pm

1 stop14h 10m

Billund

Tue 9/16

5:05 pm-9:13 am

2 stops23h 08m

$603

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Mon 5/5

12:15 pm-11:05 am

2 stops15h 50m

Billund

Tue 5/27

6:45 am-3:00 pm

1 stop15h 15m

$614

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Wed 4/23

4:50 pm-9:35 am

1 stop9h 45m

Billund

Mon 4/28

6:35 pm-2:10 pm

1 stop26h 35m

$622

ChicagoBillund

MDW - BLL

MDWBLL

Chicago Midway

Wed 4/30

10:20 am-9:35 am

2 stops16h 15m

Billund

Tue 5/6

11:45 am-10:22 pm

2 stops17h 37m

$636

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Tue 4/29

9:40 pm-11:15 pm

1 stop18h 35m

Billund

Mon 5/5

2:45 pm-12:55 pm

1 stop29h 10m

$675

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Thu 4/24

4:05 pm-2:00 pm

2 stops14h 55m

Billund

Tue 4/29

6:00 am-2:55 pm

2 stops15h 55m

$691

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Tue 5/6

5:10 pm-10:25 pm

1 stop22h 15m

Billund

Wed 5/28

6:00 am-2:10 pm

1 stop15h 10m

$710

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Sun 7/27

11:25 am-6:10 pm

1 stop23h 45m

Billund

Sun 8/3

10:05 am-9:40 am

1 stop30h 35m

$768

ChicagoBillund

ORD - BLL

ORDBLL

Chicago O'Hare Intl

Fri 7/25

1:31 pm-10:25 am

2 stops37h 54m

Billund

Fri 8/8

6:00 am-6:40 pm

2 stops19h 40m

$845

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 15 results
1
2

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

What is the cheapest month to book a flight from Illinois to Billund?

Currently, January is the cheapest month in which you can book a flight from Illinois to Billund (average of $564). Flying from Illinois to Billund in June is currently the most expensive (average of $1,114). 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.

What is the cheapest time of day to fly from IL to BLL?

Find hourly flight availability from Illinois to Billund. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 2, 2025.

When flying from Illinois to Billund, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Billund

Get insights into the airlines that provide service to Billund. 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 Billund. Reviews last updated April 2, 2025.
Delta
8.0
Very good
7,898 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,898 reviews
Delta
8.0
Very good
7,898 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very good
7,898 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,898 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,572 reviews
Delta
8.0
Very good
7,898 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,616 reviews
Delta
8.0
Very good
7,898 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Illinois to Billund one-way?

    One-way options have recently been found by users for as low as $558 on Delta. Other airlines that offer cheap prices include Turkish Airlines from $570 and Air Canada from $581 one-way.

  • 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.

  • What is the cheapest month to book a flight from Illinois to Billund?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Billund (average of $564). Flying from Illinois to Billund in June is currently the most expensive (average of $1,114). 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

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
San Francisco to Copenhagen flights
Dulles Intl to Copenhagen flights
LaGuardia to Copenhagen flights
Stewart to Copenhagen flights
O'Hare Intl to Copenhagen flights
Los Angeles to Copenhagen flights
Seattle to Copenhagen flights
Atlanta to Copenhagen flights
Reagan-National to Copenhagen flights
Baltimore to Copenhagen flights
Minneapolis to Copenhagen flights
Denver to Copenhagen flights
Midway to Copenhagen flights
Philadelphia to Copenhagen flights
San Jose to Copenhagen flights
Dallas/Fort Worth to Copenhagen flights
Oakland to Copenhagen flights
Detroit to Copenhagen flights
Miami to Copenhagen flights
Santa Ana to Copenhagen flights
Burbank to Copenhagen flights
Portland to Copenhagen flights
Charlotte to Copenhagen flights
Raleigh to Copenhagen flights
Austin to Copenhagen flights
Orlando to Copenhagen flights
San Diego to Copenhagen flights
Santa Rosa to Copenhagen flights
Love Field to Copenhagen flights
Sky Harbor Intl to Copenhagen flights
Hobby to Copenhagen flights
Salt Lake City to Copenhagen flights
Cincinnati to Copenhagen flights
Ontario to Copenhagen flights
Kansas City to Copenhagen flights
Tampa to Copenhagen flights
Pittsburgh to Copenhagen flights
George Bush Intcntl to Copenhagen flights
Seattle to Billund flights
Columbus to Copenhagen flights
O'Hare Intl to Billund flights
Fort Lauderdale to Copenhagen flights
Boise to Copenhagen flights
Memphis to Copenhagen flights
Milwaukee to Copenhagen flights
San Antonio to Copenhagen flights
Des Moines to Copenhagen flights

Top 2 airlines flying from Illinois to Billund

Discover the top 2 airlines 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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$490Average$723FlexibilityNo cancel feeOn-time76%
KLMCheapest$501Average$898FlexibilityNo cancel feeOn-time75%

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.