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$420+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
BLL — ORD
Feb 28 — Mar 71
Fri 2/28
Fri 3/7
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 February 23, 2025.

Round-trip from

$635
(Lufthansa)

One-way from

$587
(FlightHub)

Popular in

July

Cheapest in

November

Average price

$457
From Billund to Illinois
Search Deals
One-way flight from Billund to Illinois
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Highest demand for flights based on searches. 19% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 February 23, 2025.

This Ticket deal was found by Cheapflights users on 2/22. 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.
Mon 3/34:15 pmBLL - ORD
1 stop28h 40mBritish Airways
Mon 3/107:30 pmORD - BLL
1 stop13h 35mBritish Airways
Deal found 2/22$420
This Lufthansa deal was found by Cheapflights users on 2/22. 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.
Wed 9/172:45 pmBLL - ORD
1 stop12h 10mLufthansa
Sat 9/274:00 pmORD - BLL
1 stop11h 15mLufthansa
Deal found 2/22$514
This Delta deal was found by Cheapflights users on 2/22. 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 9/1610:15 amBLL - ORD
2 stops18h 55mDelta
Sat 9/275:45 pmORD - BLL
2 stops15h 40mDelta
Deal found 2/22$586
This Delta deal was found by Cheapflights users on 2/22. 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 9/1710:15 amBLL - MDW
2 stops14h 48mDelta
Sat 9/275:59 pmMDW - BLL
2 stops15h 26mDelta
Deal found 2/22$586
This Ticket deal was found by Cheapflights users on 2/22. 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.
Mon 3/310:15 amBLL - MDW
2 stops14h 56mKLM
Mon 3/106:42 pmMDW - BLL
2 stops12h 48mKLM
Deal found 2/22$614
This Lufthansa deal was found by Cheapflights users on 2/22. 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.
Wed 7/306:45 pmBLL - STL
2 stops27h 57mLufthansa
Sun 8/173:30 pmSTL - BLL
1 stop11h 40mLufthansa
Deal found 2/22$635
This Trip.com deal was found by Cheapflights users on 2/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/118:00 pmBLL - ORD
1 stop30h 40mLOT
Sat 4/269:40 pmORD - BLL
1 stop29h 05mLOT
Deal found 2/22$658
This Finnair deal was found by Cheapflights users on 2/22. 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.
Sat 8/27:25 amBLL - ORD
1 stop17h 00mFinnair
Mon 8/119:30 pmORD - BLL
1 stop32h 55mFinnair
Deal found 2/22$673
This StudentUniverse deal was found by Cheapflights users on 2/22. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/17:25 amBLL - ORD
2 stops16h 35mMultiple Airlines
Mon 8/114:55 pmORD - BLL
1 stop16h 25mMultiple Airlines
Deal found 2/22$678
This KLM deal was found by Cheapflights users on 2/22. 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.
Sat 4/126:35 pmBLL - ORD
1 stop26h 35mKLM
Fri 4/254:20 pmORD - BLL
1 stop23h 45mKLM
Deal found 2/22$829
This American Airlines deal was found by Cheapflights users on 2/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/104:15 pmBLL - STL
2 stops37h 41mAmerican Airlines
Fri 3/146:24 pmSTL - BLL
2 stops37h 11mAmerican Airlines
Deal found 2/22$864
This Flysmarter deal was found by Cheapflights users on 2/22. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/104:15 pmBLL - STL
3 stops26h 45mBritish Airways
Fri 3/144:26 pmSTL - BLL
2 stops17h 09mBritish Airways
Deal found 2/22$1,067

Find flights from Billund to Illinois within your budget

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 February 23, 2025.

Fly from

Billund

Fly to

Illinois

Route

Depart

Return

Price

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Wed 7/30

6:45 pm-3:42 pm

2 stops27h 57m

Lambert-St Louis

Sun 8/17

3:30 pm-10:10 am

1 stop11h 40m

$635

BillundChicago

BLL - ORD

BLLORD

Billund

Fri 4/11

8:00 pm-7:40 pm

1 stop30h 40m

Chicago O'Hare Intl

Sat 4/26

9:40 pm-9:45 am

1 stop29h 05m

$658

BillundChicago

BLL - ORD

BLLORD

Billund

Sat 8/2

7:25 am-5:25 pm

1 stop17h 00m

Chicago O'Hare Intl

Mon 8/11

9:30 pm-1:25 pm

1 stop32h 55m

$673

BillundChicago

BLL - ORD

BLLORD

Billund

Thu 7/31

4:15 pm-5:00 pm

1 stop31h 45m

Chicago O'Hare Intl

Mon 8/11

6:00 am-4:20 pm

2 stops27h 20m

$676

BillundChicago

BLL - ORD

BLLORD

Billund

Fri 8/1

7:25 am-5:00 pm

2 stops16h 35m

Chicago O'Hare Intl

Mon 8/11

4:55 pm-4:20 pm

1 stop16h 25m

$678

BillundChicago

BLL - ORD

BLLORD

Billund

Thu 7/31

6:00 am-11:00 am

1 stop12h 00m

Chicago O'Hare Intl

Mon 8/11

3:35 pm-12:25 pm

1 stop13h 50m

$826

BillundChicago

BLL - ORD

BLLORD

Billund

Sat 4/12

6:35 pm-2:10 pm

1 stop26h 35m

Chicago O'Hare Intl

Fri 4/25

4:20 pm-11:05 pm

1 stop23h 45m

$829

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Mon 3/10

4:15 pm-11:56 pm

2 stops37h 41m

Lambert-St Louis

Fri 3/14

6:24 pm-1:35 pm

2 stops37h 11m

$864

BillundChicago

BLL - MDW

BLLMDW

Billund

Mon 8/4

6:00 am-6:03 pm

2 stops19h 03m

Chicago Midway

Mon 8/11

5:59 pm-5:40 pm

2 stops16h 41m

$1,047

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Mon 3/10

4:15 pm-1:00 pm

3 stops26h 45m

Lambert-St Louis

Fri 3/14

4:26 pm-3:35 pm

2 stops17h 09m

$1,067

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 18 results
1
2

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.

Travel insights for flights from Billund to Illinois

Get recent, data-driven insights about flights from Billund to Illinois including ideal travel times, pricing trends, and more.

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.

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

Find hourly flight availability from Billund to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 23, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Billund to Illinois as you normally would.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 February 23, 2025.
Get a feel of what it's like to fly with Delta, KLM and LOT from Billund to Illinois by reading reviews from past customers. 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.
Delta
8.0
Very good
8,203 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,203 reviews
Delta
8.0
Very good
8,203 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,332 reviews
Delta
8.0
Very good
8,203 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

LOT
7.6
Good
1,081 reviews
Delta
8.0
Very good
8,203 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,271 reviews
Delta
8.0
Very good
8,203 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,448 reviews
Delta
8.0
Very good
8,203 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 O'Hare Intl, Billund - Chicago Midway 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 3 airlines flying from Billund to Illinois

Discover the top 3 airlines 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 February 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$427Average$697FlexibilityNo cancel feeOn-time69%
KLMCheapest$463Average$801FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$559Average$696FlexibilityNo cancel feeOn-time76%
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