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O'Hare Intl

$674+ Cheap flights from Billund (BLL) to O'Hare Intl (ORD)

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
BLL — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Billund to Chicago O'Hare Intl are usually found in January or March, booked 24 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

Cheap flight deals from Billund to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Billund (BLL) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$674
(Travelis)

Popular in

June

Cheapest in

January

Average price

$789
From Billund to Chicago O'Hare Intl
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Highest demand for flights based on searches. 13% potential increase in price ($101 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Billund to O'Hare Intl

Cheapest flights from Billund to O'Hare Intl
Explore the most affordable flight options available from Billund to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Travelis deal was found by Cheapflights users on 6/11. 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 8/52:15 pmBLL - ORD
1 stop31h 25mAir France
Sat 8/233:50 pmORD - BLL
2 stops15h 00mAir France
Deal found 6/11$674
This Delta deal was found by Cheapflights users on 6/12. 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 8/156:00 amBLL - ORD
1 stop15h 10mDelta
Sat 9/61:25 pmORD - BLL
2 stops14h 05mDelta
Deal found 6/12$706
This Travelis deal was found by Cheapflights users on 6/12. 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 8/52:15 pmBLL - ORD
1 stop31h 25mKLM
Sat 8/234:20 pmORD - BLL
1 stop23h 40mKLM
Deal found 6/12$715
This Expedia deal was found by Cheapflights users on 6/12. 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.
Thu 7/31:05 pmBLL - ORD
2 stops16h 00mMultiple Airlines
Tue 7/86:00 pmORD - BLL
1 stop11h 25mMultiple Airlines
Deal found 6/12$752
This Air Canada deal was found by Cheapflights users on 6/12. 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.
Sat 8/166:00 amBLL - ORD
2 stops21h 16mAir Canada
Thu 9/410:40 amORD - BLL
2 stops20h 20mAir Canada
Deal found 6/12$811
This Ticket deal was found by Cheapflights users on 6/10. 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.
Fri 7/2510:25 amBLL - ORD
1 stop16h 15mLOT
Fri 8/14:55 pmORD - BLL
2 stops57h 50mLOT
Deal found 6/10$824
This British Airways deal was found by Cheapflights users on 6/12. 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.
Thu 8/144:15 pmBLL - ORD
2 stops31h 10mBritish Airways
Fri 9/52:55 pmORD - BLL
2 stops17h 40mBritish Airways
Deal found 6/12$930
This Scandinavian Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 9/176:25 amBLL - ORD
3 stops22h 06mScandinavian Airlines
Sat 9/277:00 amORD - BLL
2 stops19h 25mScandinavian Airlines
Deal found 6/10$980

Cheapflights Fare Finder

Customize your flight search to find flights from Billund to O'Hare Intl 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 June 12, 2025.
Use the filters below to find and compare flights from Billund to Chicago O'Hare Intl Airport that are best for you.

Fly from

Billund

Fly to

O'Hare Intl

Route

Depart

Return

Price

BillundChicago

BLL - ORD

BLLORD

Billund

Tue 8/5

2:15 pm-2:40 pm

1 stop31h 25m

Chicago O'Hare Intl

Sat 8/23

3:50 pm-1:50 pm

2 stops15h 00m

$674

BillundChicago

BLL - ORD

BLLORD

Billund

Fri 8/15

6:00 am-2:10 pm

1 stop15h 10m

Chicago O'Hare Intl

Sat 9/6

1:25 pm-10:30 am

2 stops14h 05m

$706

BillundChicago

BLL - ORD

BLLORD

Billund

Tue 8/5

2:15 pm-2:40 pm

1 stop31h 25m

Chicago O'Hare Intl

Sat 8/23

4:20 pm-11:00 pm

1 stop23h 40m

$715

BillundChicago

BLL - ORD

BLLORD

Billund

Thu 7/3

1:05 pm-10:05 pm

2 stops16h 00m

Chicago O'Hare Intl

Tue 7/8

6:00 pm-12:25 pm

1 stop11h 25m

$752

BillundChicago

BLL - ORD

BLLORD

Billund

Sat 8/16

6:00 am-8:16 pm

2 stops21h 16m

Chicago O'Hare Intl

Thu 9/4

10:40 am-2:00 pm

2 stops20h 20m

$811

BillundChicago

BLL - ORD

BLLORD

Billund

Fri 7/25

10:25 am-7:40 pm

1 stop16h 15m

Chicago O'Hare Intl

Fri 8/1

4:55 pm-9:45 am

2 stops57h 50m

$824

BillundChicago

BLL - ORD

BLLORD

Billund

Thu 8/14

4:15 pm-4:25 pm

2 stops31h 10m

Chicago O'Hare Intl

Fri 9/5

2:55 pm-3:35 pm

2 stops17h 40m

$930

BillundChicago

BLL - ORD

BLLORD

Billund

Wed 9/17

6:25 am-9:31 pm

3 stops22h 06m

Chicago O'Hare Intl

Sat 9/27

7:00 am-9:25 am

2 stops19h 25m

$980

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Billund to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 Chicago O'Hare Intl Airport

How far ahead should I book a flight from Billund to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Billund to O'Hare Intl. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from Billund to Chicago O'Hare Intl Airport, you should look to book at least 24 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Billund to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Billund to Chicago O'Hare Intl Airport (average of $245). Flying from Billund to Chicago O'Hare Intl Airport 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.

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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 O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LOT
7.6
Good
1,077 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,387 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Billund to O'Hare Intl. 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 Chicago O'Hare Intl?

    Billund (BLL) is the airport you will fly out of if you book a flight from Billund to Chicago O'Hare Intl. You should not have trouble finding flights to Chicago O'Hare Intl from Billund; the airport handles an average of 0 outbound flights to Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Billund airport to Chicago O'Hare Intl. It is only a 1.7 mi journey to Billund (BLL) from Billund’s city center.

  • What are the cheapest airlines flying from Billund to Chicago O'Hare Intl Airport round-trip?

    Our cheapest airline available from Billund to Chicago O'Hare Intl Airport is Air France. Our recent data shows that you can find tickets from as low as $674 on this airline. Additional options worth looking into are Delta and KLM, starting at $706 and $715 round-trip.

  • Can I find deals for flights from Billund to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Billund to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billund to O'Hare Intl?

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

  • Can I find deals for business class flights from Billund to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Billund to O'Hare Intl 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 Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Billund to Chicago O'Hare Intl Airport (average of $245). Flying from Billund to Chicago O'Hare Intl Airport 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.

See more FAQs

Traveling to a place near Billund?

Book flights to Billund if you plan to visit one of these locations
Schaumburg
Hoffman Estates
Rosemont
Beloit
Elgin
Racine
Skokie
Arlington Heights
Rockford
Naperville
Orland Park
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Tinley Park
Northbrook
Joliet
Merrillville
Bridgeview
Glenview
Des Plaines
Lake Geneva

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Alternative routes for Billund to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Copenhagen to O'Hare Intl flights

Top 2 airlines flying from Billund to O'Hare Intl

Discover the top 2 airlines that operate flights from Billund to O'Hare Intl. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$427Average$697FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$559Average$697FlexibilityNo cancel feeOn-time76%

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