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O'Hare Intl

$538+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
BLL — ORD
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
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 September, 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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$538
(Ticket)

Popular in

July

Cheapest in

January

Average price

$592
Provider with most accurate pricing for Billund-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Billund-Chicago O'Hare Intl flights.
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From Billund to Chicago O'Hare Intl
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Highest demand for flights based on searches. 13% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 31, 2025.

This Ticket deal was found by Cheapflights users on 3/30. 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.
Thu 5/86:00 amBLL - ORD
1 stop15h 10mKLM
Mon 5/125:40 pmORD - BLL
2 stops12h 50mKLM
Deal found 3/30$538
This Flysmarter deal was found by Cheapflights users on 3/30. 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.
Tue 9/162:55 pmBLL - ORD
1 stop12h 00mLufthansa
Sat 9/274:00 pmORD - BLL
1 stop11h 15mLufthansa
Deal found 3/30$552
This British Airways deal was found by Cheapflights users on 3/30. 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.
Wed 9/175:05 pmBLL - ORD
2 stops23h 08mBritish Airways
Sun 9/289:15 pmORD - BLL
1 stop12h 05mBritish Airways
Deal found 3/30$574
This Delta deal was found by Cheapflights users on 3/30. 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 9/166:00 amBLL - ORD
1 stop15h 10mDelta
Sat 9/2710:10 amORD - BLL
2 stops16h 20mDelta
Deal found 3/30$644
This Flysmarter deal was found by Cheapflights users on 3/30. 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.
Thu 9/186:45 amBLL - ORD
2 stops17h 01mAir France
Sun 9/285:45 pmORD - BLL
2 stops16h 55mAir France
Deal found 3/30$656
This Scandinavian Airlines deal was found by Cheapflights users on 3/30. 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 9/166:25 amBLL - ORD
3 stops21h 35mScandinavian Airlines
Sat 9/277:00 amORD - BLL
2 stops19h 25mScandinavian Airlines
Deal found 3/30$1,239
This Scandinavian Airlines deal was found by Cheapflights users on 3/30. 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.
Thu 5/86:25 amBLL - ORD
3 stops22h 06mMultiple Airlines
Mon 5/129:35 amORD - BLL
2 stops22h 30mMultiple Airlines
Deal found 3/30$1,282
This TAP AIR PORTUGAL deal was found by Cheapflights users on 3/30. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1710:35 amBLL - ORD
2 stops31h 20mTAP AIR PORTUGAL
Sun 9/288:40 amORD - BLL
3 stops27h 25mTAP AIR PORTUGAL
Deal found 3/30$1,338

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 March 31, 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

Thu 5/8

6:00 am-2:10 pm

1 stop15h 10m

Chicago O'Hare Intl

Mon 5/12

5:40 pm-1:30 pm

2 stops12h 50m

$538

BillundChicago

BLL - ORD

BLLORD

Billund

Tue 9/16

2:55 pm-7:55 pm

1 stop12h 00m

Chicago O'Hare Intl

Sat 9/27

4:00 pm-10:15 am

1 stop11h 15m

$552

BillundChicago

BLL - ORD

BLLORD

Billund

Wed 9/17

5:05 pm-9:13 am

2 stops23h 08m

Chicago O'Hare Intl

Sun 9/28

9:15 pm-4:20 pm

1 stop12h 05m

$574

BillundChicago

BLL - ORD

BLLORD

Billund

Tue 9/16

6:00 am-2:10 pm

1 stop15h 10m

Chicago O'Hare Intl

Sat 9/27

10:10 am-9:30 am

2 stops16h 20m

$644

BillundChicago

BLL - ORD

BLLORD

Billund

Thu 9/18

6:45 am-4:46 pm

2 stops17h 01m

Chicago O'Hare Intl

Sun 9/28

5:45 pm-5:40 pm

2 stops16h 55m

$656

BillundChicago

BLL - ORD

BLLORD

Billund

Tue 9/16

6:25 am-9:00 pm

3 stops21h 35m

Chicago O'Hare Intl

Sat 9/27

7:00 am-9:25 am

2 stops19h 25m

$1,239

BillundChicago

BLL - ORD

BLLORD

Billund

Thu 5/8

6:25 am-9:31 pm

3 stops22h 06m

Chicago O'Hare Intl

Mon 5/12

9:35 am-3:05 pm

2 stops22h 30m

$1,282

BillundChicago

BLL - ORD

BLLORD

Billund

Wed 9/17

10:35 am-10:55 am

2 stops31h 20m

Chicago O'Hare Intl

Sun 9/28

8:40 am-7:05 pm

3 stops27h 25m

$1,338

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

  • Most accurate provider: When it comes to deals on Billund-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billund-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billund-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Billund-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Billund-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 28, 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 $323). 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 ORD?

Find hourly flight availability from Billund to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

It’s typically best to fly out from Billund to Chicago O'Hare Intl Airport in the morning. Doing so could potentially save you 3% on the flight price compared to flying at noon, which is usually more expensive.

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 March 31, 2025.
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

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
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

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
1,321 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

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
1,425 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

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
Scandinavian Airlines
7.3
Good
1,326 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

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
TAP AIR PORTUGAL
7.1
Good
1,831 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.5

Food

7.3

Overall

8.0

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 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 3 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 KLM. Our recent data shows that you can find tickets from as low as $538 on this airline. Additional options worth looking into are Lufthansa and British Airways, starting at $552 and $574 round-trip. KLM is priced at 16% lower than the current average price of a flight leaving 3 months from now.

  • 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 $323). 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
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Rosemont
Beloit
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Skokie
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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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$427Average$697FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$559Average$697FlexibilityNo cancel feeOn-time76%
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