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$461+ Cheap flights from Billund (BLL) to Illinois

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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
BLL — ORD
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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Cheap flight deals from Billund to Illinois

Keep the following information in mind while searching for Billund to Illinois flight deals. Data was last updated August 16, 2025.

Round-trip from

$461
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$618
From Billund to Illinois
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($124 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Billund to Illinois

Cheapest flights from Billund to Illinois
Explore the most affordable flight options available from Billund to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:30 amBLL - ORD
2 stops33h 43mAir Canada
Thu 11/202:00 pmORD - BLL
2 stops16h 20mAir Canada
Deal found 8/14$461
This Travelis deal was found by Cheapflights users on 8/15. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/176:00 amBLL - ORD
1 stop13h 55mLufthansa
Sun 9/284:00 pmORD - BLL
1 stop11h 05mLufthansa
Deal found 8/15$467
This Ticket deal was found by Cheapflights users on 8/14. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:30 amBLL - ORD
2 stops15h 25mMultiple Airlines
Thu 11/2010:35 pmORD - BLL
1 stop12h 25mMultiple Airlines
Deal found 8/14$472
This British Airways deal was found by Cheapflights users on 8/15. 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 12/21:10 pmBLL - ORD
1 stop12h 35mBritish Airways
Thu 1/89:45 pmORD - BLL
1 stop31h 35mBritish Airways
Deal found 8/15$486
This British Airways deal was found by Cheapflights users on 8/15. 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.
Fri 12/58:50 pmBLL - ORD
1 stop25h 35mBritish Airways
Fri 1/91:54 pmORD - BLL
2 stops15h 26mBritish Airways
Deal found 8/15$488
This Expedia deal was found by Cheapflights users on 8/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:50 pmBLL - ORD
1 stop24h 00mBritish Airways
Sat 1/1011:40 amORD - BLL
2 stops17h 50mBritish Airways
Deal found 8/15$491
This Air Canada deal was found by Cheapflights users on 8/15. 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.
Fri 12/56:30 amBLL - ORD
2 stops39h 11mAir Canada
Sat 1/103:40 pmORD - BLL
2 stops38h 50mAir Canada
Deal found 8/15$494
This Travelis deal was found by Cheapflights users on 8/15. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:35 pmBLL - ORD
1 stop27h 05mAir France
Sat 9/275:15 pmORD - BLL
2 stops13h 15mAir France
Deal found 8/15$498
This United Airlines deal was found by Cheapflights users on 8/15. 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 12/52:05 pmBLL - ORD
2 stops16h 39mUnited Airlines
Sat 1/102:45 pmORD - BLL
2 stops15h 35mUnited Airlines
Deal found 8/15$499
This Air Canada deal was found by Cheapflights users on 8/15. 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.
Tue 12/26:30 amBLL - ORD
2 stops20h 00mAir Canada
Thu 1/86:40 pmORD - BLL
2 stops35h 40mAir Canada
Deal found 8/15$501
This Lufthansa deal was found by Cheapflights users on 8/15. 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.
Thu 12/46:30 amBLL - STL
2 stops24h 12mLufthansa
Mon 12/81:00 pmSTL - BLL
2 stops13h 40mLufthansa
Deal found 8/15$506
This Delta deal was found by Cheapflights users on 8/15. 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.
Fri 9/1210:15 amBLL - MDW
2 stops18h 21mDelta
Sat 9/271:43 pmMDW - BLL
2 stops16h 47mDelta
Deal found 8/15$535

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billund to Illinois 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 August 16, 2025.
Use the filters below to find and compare flights from Billund to Illinois that are best for you.

Fly from

Billund

Fly to

Illinois

Route

Depart

Return

Price

BillundChicago

BLL - ORD

BLLORD

Billund

Sun 11/16

6:30 am-9:13 am

2 stops33h 43m

Chicago O'Hare Intl

Thu 11/20

2:00 pm-1:20 pm

2 stops16h 20m

$461

BillundChicago

BLL - ORD

BLLORD

Billund

Wed 9/17

6:00 am-12:55 pm

1 stop13h 55m

Chicago O'Hare Intl

Sun 9/28

4:00 pm-10:05 am

1 stop11h 05m

$467

BillundChicago

BLL - ORD

BLLORD

Billund

Sun 11/16

6:30 am-2:55 pm

2 stops15h 25m

Chicago O'Hare Intl

Thu 11/20

10:35 pm-6:00 pm

1 stop12h 25m

$472

BillundChicago

BLL - ORD

BLLORD

Billund

Tue 12/2

1:10 pm-6:45 pm

1 stop12h 35m

Chicago O'Hare Intl

Sat 1/10

9:45 pm-8:00 pm

1 stop15h 15m

$486

BillundChicago

BLL - ORD

BLLORD

Billund

Sun 12/7

8:50 pm-1:50 pm

1 stop24h 00m

Chicago O'Hare Intl

Tue 1/13

5:10 pm-12:30 pm

1 stop12h 20m

$486

BillundChicago

BLL - ORD

BLLORD

Billund

Sun 12/7

8:50 pm-6:45 pm

1 stop28h 55m

Chicago O'Hare Intl

Sat 1/10

9:45 pm-8:00 pm

1 stop15h 15m

$486

BillundChicago

BLL - ORD

BLLORD

Billund

Thu 12/4

1:00 pm-6:45 pm

1 stop12h 45m

Chicago O'Hare Intl

Tue 1/13

5:10 pm-12:30 pm

1 stop12h 20m

$486

BillundChicago

BLL - ORD

BLLORD

Billund

Mon 12/8

1:10 pm-1:50 pm

1 stop31h 40m

Chicago O'Hare Intl

Mon 1/12

5:10 pm-12:20 pm

1 stop12h 10m

$486

BillundChicago

BLL - ORD

BLLORD

Billund

Mon 12/8

1:10 pm-6:45 pm

1 stop12h 35m

Chicago O'Hare Intl

Thu 1/8

9:45 pm-12:20 pm

1 stop31h 35m

$486

BillundChicago

BLL - ORD

BLLORD

Billund

Fri 12/5

8:50 pm-6:45 pm

1 stop28h 55m

Chicago O'Hare Intl

Sun 1/11

9:45 pm-12:20 pm

1 stop31h 35m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 23 results
1
2
3

Best time to book a flight from Billund to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Billund 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 Billund to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Billund to Illinois (average of $245). Flying from Billund to Illinois in March is currently the most expensive (average of $321). 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.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated August 16, 2025.
See what other customers who have flown with Lufthansa from Billund to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,322 reviews

Comfort

6.8

Entertainment

6.4

Boarding

7.0

Food

6.3

Overall

6.8

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jan 2025

FRA - TPA

I had ordered a gluten-free meal through you I double triple checked that through you got screamed at by one of your representatives. She yelled at me and said that she had ordered the mail, she had chosen my seat, and made sure that all my baggage is were paid for. That was a lie. My experience with discover airlines in and of itself was GOOD but your representative was out of line did not do anything that she screamed at me and told me she did and I literally had to call the airlines myself to get my seat selected to double check on my gluten-free meal which still was not on board and to pay for my bags which I thought that I paid for all of them until I got to the airport and I still had to pay for my check back. So cheap flights I will never use you again.
Lufthansa
6.8
Okay
7,322 reviews
Lufthansa
6.8
Okay
7,322 reviews

Comfort

6.8

Entertainment

6.4

Boarding

7.0

Food

6.3

Overall

6.8

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jan 2025

FRA - TPA

I had ordered a gluten-free meal through you I double triple checked that through you got screamed at by one of your representatives. She yelled at me and said that she had ordered the mail, she had chosen my seat, and made sure that all my baggage is were paid for. That was a lie. My experience with discover airlines in and of itself was GOOD but your representative was out of line did not do anything that she screamed at me and told me she did and I literally had to call the airlines myself to get my seat selected to double check on my gluten-free meal which still was not on board and to pay for my bags which I thought that I paid for all of them until I got to the airport and I still had to pay for my check back. So cheap flights I will never use you again.

Related info for your journey

Find useful and relevant information for your journey from Billund to Illinois. 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 from for flights from Billund to Illinois?

    Billund (BLL), located 1.7 mi from the city center, is the airport you fly out of when you book flights from Billund to Illinois.

  • What are the most popular routes from Billund to Illinois?

    Most travelers choose Billund - Chicago Midway, Billund - Chicago O'Hare Intl or Billund - Lambert-St Louis when deciding on the best route from Billund to Illinois.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Billund to Illinois 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 Billund to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Billund to Illinois (average of $245). Flying from Billund to Illinois in March is currently the most expensive (average of $321). 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.

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Alternative routes for Billund to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Billund to Illinois

Discover the top airline that operate flights from Billund to Illinois. 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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$530Average$742FlexibilityNo cancel feeOn-time76%

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