Statistics on Chicago-Billund flights: what is the right price and when to buy your plane ticket?

Best time to go: what is the RIGHT price for a round-trip flight to Billund (from: Chicago)

The average price to go to Billund from Chicago airport is $ 804 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 628 (in january) and $ 1111 (in july), which is a saving of $ 176 or a surplus of $ 308 (compared to the average price) depending on the period you leave.

The analysis of all prices reveals that the most frequent price is between $608 to $664 and it is generally more economical to leave on a wednesday and return on a monday on a flight with 1 or more layovers.

Be careful, the cheapest months may correspond to unfavorable weather periods . Check out our page best time to go to Billund before booking your flight.

If you want to know when to book your flight at the best price, go straight to the second part of this page: When to buy your Chicago-Billund plane ticket.

How are these data calculated?

We have studied a sample of 1662 airfare prices from previous years for flights to Billund from Chicago and can thus establish precise and credible price variation trends based on different parameters. Of course, prices can vary from year to year, but the seasonal aspect of this data (recurrence of school holidays, events... from year to year) makes these statistics quite reliable.

Average price depending on the departure month

Created with Highcharts 8.2.2 $628 $628 $630 $630 $755 $755 $654 $654 $786 $786 $1099 $1099 $1111 $1111 $832 $832 $704 $704 $889 $889 $681 $681 $865 $865Average price of round-trip airfare in USD according to the departure monthjan.feb.mar.apr.mayjun.jul.aug.sep.oct.nov.dec.500600700800900100011001200

Data analysis:

By leaving in january, the price of the plane ticket will statistically be the cheapest ($ 628, saving $ 176 compared to the average price over the year which is $ 804). Conversely, july will be the most expensive ($ 1111).

Flight Chicago-Billund: when is the best time to go for the best price?

Month Good price* Average price Our opinion
January$ 552 $ 628 very good price
February$ 594 $ 630 good price
March$ 610 $ 755 good price
April$ 596 $ 654 good price
May$ 671 $ 786 fair price
June$ 957 $ 1099 high price
July$ 1018 $ 1111 very high price
August$ 649 $ 832 fair price
September$ 609 $ 704 good price
October$ 622 $ 889 fair price
November$ 576 $ 681 good price
December$ 668 $ 865 fair price

*great price to buy your plane ticket: if you see this price or cheaper during your flight search, go for it and buy it!

Price breakdown to travel from Chicago to Billund

Created with Highcharts 8.2.21%1%4%4%9%9%14%14%16%16%10%10%6%6%6%6%5%5%4%4%3%3%3%3%4%4%4%4%5%5%2%2%Percentage of plane tickets found at this price$387 to $443$443 to $498$498 to $553$553 to $608$608 to $664$664 to $719$719 to $774$774 to $829$829 to $885$885 to $940$940 to $995$995 to $1050$1050 to $1106$1106 to $1161$1161 to $1216$1216 to $127105101520

Data analysis:

The prices for flights from Chicago to Billund range from $387 to $1271. 1% of tickets were purchased at the minimum price (from $387 to $443), 2% at the maximum price (from $1216 to $1271). The majority of plane tickets were purchased in the range of $608 to $664 (16% of tickets).

Cheapest airlines for the Chicago->Billund flight

There are 12 companies that serve Chicago from Billund airport: British Airways, Lufthansa, United, Air France, Spirit Airlines, Icelandair, LOT, Turkish Airlines, Frontier Airlines, SAS, KLM and American Airlines.

Created with Highcharts 8.2.2British Airways: 17 %British Airways: 17 %Lufthansa: 13 %Lufthansa: 13 %United: 11 %United: 11 %Air France: 8 %Air France: 8 %Spirit Airlines: 6 %Spirit Airlines: 6 %Icelandair: 5 %Icelandair: 5 %LOT: 5 %LOT: 5 %Turkish Airlines: 5 %Turkish Airlines: 5 %Frontier Airlines: 4 %Frontier Airlines: 4 %SAS: 4 %SAS: 4 %

Data analysis:

Of the 1662 flights analyzed in previous years, British Airways was the airline that offered the best fare most often in the flight ticket search results (17% of the time) on the Chicago->Billund route.

Which day of the week to leave?

Created with Highcharts 8.2.2 $ +12 $ +12 $ -23 $ -23 $ -53 $ -53 $ -90 $ -90 $ +87 $ +87 $ +23 $ +23 $ -2 $ -2Average airfare price according to the departure daya sundaya mondaya tuesdaya wednesdaya thursdaya fridaya saturday-100-50050100

Data analysis:

Statistically, Chicago-Billund flights departing on a wednesday are cheaper than on other days of the week. By choosing a wednesday as your departure date, you can save an average of $90. On the other hand, departing on a thursday may cost you an additional $87.

Which day of the week to come back?

Created with Highcharts 8.2.2 $ +37 $ +37 $ -97 $ -97 $ -95 $ -95 $ -39 $ -39 $ +93 $ +93 $ +62 $ +62 $ +26 $ +26Average airfare price based on the return daya sundaya mondaya tuesdaya wednesdaya thursdaya fridaya saturday-150-100-50050100150

Data analysis:

Statistically, return flights from Billund to Chicago departing on a monday are cheaper than on other days of the week. By choosing a monday for your return date, you will save an average of $97. Conversely, departing from Billund on a thursday may cost you an additional $93.

Top prices Chicago-Billund

Round tripDatesPrice
Chicago → Billund07-04 to 12-04-2025$ 1206 
Chicago → Billund01-05 to 30-05-2025$ 772 
Chicago → Billund13-05 to 20-05-2025$ 670 
Chicago → Billund14-05 to 21-05-2025$ 752 
Chicago → Billund15-05 to 22-05-2025$ 679 
Chicago → Billund16-05 to 23-05-2025$ 835 
Chicago → Billund17-05 to 24-05-2025$ 790 
Chicago → Copenhagen18-11 to 23-11-2025$ 489 
Chicago → Billund14-12 to 30-12-2025$ 735 
Chicago → Billund15-12 to 26-12-2025$ 661 

When to book your flight Chicago - Billund to get the cheapest price?

Statistically, you will make the biggest savings by buying your plane ticket between 1 to 2 months in advance. However, you may end up paying a high price if you book between 3 to 4 months in advance.

Did you know: the price of plane tickets not only varies depending on how far in advance you book, but also on the day of the week you book! So, to maximize your chances of getting the best price for a Chicago-Billund flight, it is recommended to book your ticket on a friday.

How far in advance should I buy my flight?

Created with Highcharts 8.2.2 $820 $820 $743 $743 $860 $860 $965 $965 $897 $897 $891 $891Average airfare price based on the number of months between booking and flight0 to 1 month1 to 2 months2 to 3 months3 to 4 months4 to 5 months5 to 6 months6006507007508008509009501000

Data analysis:

To get the cheapest flight ticket from Chicago to Billund, it is recommended to buy it 1 to 2 months before departure (it is then on average 743 $, which is a saving of 61 $ compared to the overall average price). On the other hand, if you buy your ticket 3 to 4 months in advance, you will pay the full price (161 $ more than the average price).

Depending on the departure month

The best time to buy your Chicago to Billund flight ticket may vary depending on your departure month. Therefore, we offer you statistics on when to book your flight month by month.

Departure on... How far in advance should I book?
January

Best time: 1 to 2 months before departure (average price: 619 $)
February

Best time: 1 to 2 months before departure (average price: 619 $)
March

Best time: 1 to 2 months before departure (average price: 713 $)
April-
May-
June-
July-
August

Best time: 1 to 2 months before departure (average price: 719 $)
September

Best time: 0 to 1 month before departure (average price: 655 $)

Other interesting period(s): 1 to 2 months ($ 686)
October-
November-
December-

What day of the week should I book my flight ticket?

Created with Highcharts 8.2.2 $ -1 $ -1 $ +7 $ +7 $ +20 $ +20 $ -8 $ -8 $ +33 $ +33 $ -42 $ -42 $ -5 $ -5Average price of plane ticket according to the booking daysundaymondaytuesdaywednesdaythursdayfridaysaturday-60-40-2002040

Data analysis:

Statistically, friday is the day when plane tickets for Chicago->Billund are the cheapest. So, by buying your plane ticket on a friday, you will save $42. Conversely, by buying it on a thursday, you may end up paying $33 more.

Chicago to Billund: flight price when booking today

Information: this data is not statistics but comes from real prices collected less than 7 days ago. Some months may not be available as we do not have enough data for them.

Month Current price
April 2025$ 1206
$1206 to $1206		Find a flight
May 2025$ 738
$670 to $835		Find a flight
December 2025$ 731
$661 to $795		Find a flight

Data analysis:

Compared to the average price, may and december are cheaper to travel to Billund. So it may be interesting to book now to leave during these months!

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