BLL - ORD

$466 Find Cheap Flights from Billund to Chicago

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billund to Chicago departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billund to Chicago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billund to Chicago, as well as popular online travel agencies
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Cheap Flights from Billund to Chicago

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Billund to Chicago that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Billund to Chicago

KAYAK's recommended round-trip deals from the most popular airlines that fly from Billund to Chicago.
Discover the best prices for you by selecting your travel dates on KAYAK.
Finnair Logo
7:25 am - 7:17 pmBLL-ORD
18h 52m2 stops
Finnair Logo
10:35 pm - 6:45 amORD-BLL
25h 10m2 stops
$466Finnair
Find Deal
Sat, Aug 16 - Thu, Sep 4
British Airways Logo
5:05 pm - 9:13 amBLL-ORD
23h 08m2 stops
British Airways Logo
7:10 pm - 2:45 pmORD-BLL
12h 35m1 stop
$474British Airways
Find Deal
Tue, Sep 16 - Sat, Sep 27
KLM Logo
10:15 am - 2:10 pmBLL-ORD
10h 55m1 stop
KLM Logo
4:20 pm - 10:30 amORD-BLL
11h 10m1 stop
$486KLM
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Tue, Sep 16 - Sat, Sep 27
KLM Logo
2:15 pm - 2:10 pmBLL-ORD
30h 55m1 stop
KLM Logo
4:20 pm - 11:00 pmORD-BLL
23h 40m1 stop
$487KLM
Find Deal
Wed, Sep 17 - Sat, Sep 27
Delta Logo
10:15 am - 2:10 pmBLL-ORD
10h 55m1 stop
Delta Logo
4:20 pm - 9:35 amORD-BLL
10h 15m1 stop
$493Delta
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Sat, Aug 16 - Thu, Sep 4
Delta Logo
6:00 am - 2:10 pmBLL-ORD
15h 10m1 stop
Delta Logo
9:30 am - 9:30 amORD-BLL
17h 00m2 stops
$536Delta
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Sun, Aug 17 - Fri, Sep 5
Scandinavian Airlines Logo
6:25 am - 4:10 pmBLL-ORD
16h 45m1 stop
Scandinavian Airlines Logo
7:15 pm - 2:55 pmORD-BLL
12h 40m1 stop
$570Scandinavian Airlines
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Mon, Aug 18 - Fri, Sep 5
Lufthansa Logo
6:00 am - 2:55 pmBLL-ORD
15h 55m2 stops
Lufthansa Logo
3:35 pm - 12:25 pmORD-BLL
13h 50m1 stop
$573Lufthansa
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Sun, Aug 17 - Tue, Sep 2
Lufthansa Logo
6:45 pm - 12:55 pmBLL-ORD
25h 10m1 stop
Lufthansa Logo
3:35 pm - 12:25 pmORD-BLL
13h 50m1 stop
$601Lufthansa
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Mon, Aug 18 - Wed, Sep 3
Scandinavian Airlines Logo
3:40 pm - 4:10 pmBLL-ORD
31h 30m1 stop
Scandinavian Airlines Logo
7:00 am - 9:25 amORD-BLL
19h 25m2 stops
$771Scandinavian Airlines
Find Deal
Thu, May 29 - Thu, Jun 5
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KAYAK's insights & trends for Billund to Chicago flights

Get data-powered insights and trends into flights from Billund to Chicago to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Billund to Chicago?

The average price of all round-trip flights from Billund to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.

When flying from Billund to Chicago, you should consider leaving on a Saturday and avoid Wednesdays if you are looking for the best rates. For your return to Billund, you’ll find the best rates on Tuesdays and the most expensive ones on Mondays.

What is the cheapest month to fly from Billund to Chicago O'Hare Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Billund to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Billund to Chicago O'Hare Intl Airport is January, where tickets cost $495 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $856 and $767 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Billund to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Billund to Chicago O'Hare Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonMarch
High seasonMay
Cheapest flight$466
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Billund to Chicago

When to book flights from Billund to Chicago

Are your dates flexible? Find out the best times to travel from Billund to Chicago based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Billund to Chicago flights

  • What is the cheapest flight from Billund to Chicago O'Hare Intl Airport?

    In the last 3 days, the lowest price for a flight from Billund to Chicago O'Hare Intl Airport was $466 for a round-trip ticket.

  • Do I need a passport to fly between Billund and Chicago?

    Yes, you’ll need a passport to travel to Chicago from Billund.

  • Which aircraft models fly most regularly from Billund to Chicago?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Billund to Chicago?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Billund and Chicago, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Billund to Chicago?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Billund to Chicago.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Billund to Chicago?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Billund is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Billund to Chicago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Billund with another airline. Booking your flights between Billund and ORD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Billund to Chicago?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Billund up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airlines flying from Billund to Chicago

 
See real verified KAYAK customer reviews for airlines flying from Billund to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Billund to Chicago? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8696 reviews
7.1Entertainment
6.6Food
8.1Crew
7.3Comfort
7.7Boarding
Airline reviews

So far so good but food and entertainment are not available for this flight

8.0 ExcellentAnonymous, Apr 2025YUL - ORD
Read more United Airlines reviews

So far so good but food and entertainment are not available for this flight

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

It was my first time with United Airlines and I would say it was very good experience and best of all the flights were on time. Will definitely fly with United Airlines next time.

Very modern plane. Good seat spacing. Meals were good. Screens had tons of movies and worked

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

The crew were very nice. The Chocolate is good and v there’s no entertainment. Thanks

The crew were very nice. I would have appreciated a pillow for comfort. I had a special meal that was sloppy, but the salad was great. Thanks

The plane was in Moline all night. Consequently, we assumed an on time departure at 8:15am. Unfortunately, and as is the normal case with United in Moline, we departed 2.5 hours late. When the crew came, it was discovered that there was very little heat in the plane. Seems this should have been checked hours before the crew arrived. Then when we boarded and the plane was to be de-iced, the United de-icing truck was not working! We awaited the American Airlines truck. All of this caused us to miss our connection in Chicago. My suggestion is never take United Airlines flight from Moline. We have been disappointed 80% of the time and have vowed to not take United again from Moline.

Flight was delayed two hours. No snacks and no tv screens. My bag got stuck in Chicago

I wish seats were not reclinable. It's so claustrophobic when the person in front of you spends most of a nine hour flight leaned all the way back. The crew was really nice though and the dinner (red Thai curry) was pretty compelling.

Our flights were severely delayed, then canceled and we had to fly out next day with no sleep accommodation help. This led to our baggage being lost and the service reps after baggage couldn’t be bothered to help. They kept sending us to different counters when we were at the right counter to begin with. The only saving grace was the angel woman supervisor with blond hair who helped us put in a missing baggage claim.

The boarding system was all bogus - employees at the boarding gate were not sound like proffesional or may be possibly rational

I got an email in the morning of the flight 1/7, from Kayak, that I was rebooked from UA 906 to LH 430. Nobody at Lufthansa ot United knew about this. I went to both counters. at the airport. Also, Cheap Flights, who I booked the ticket through, did not know. I ended up staying on the United flight. But this was very disturbing, since I got a very late notice that I was rebooked to an earlier flight, I hurried to the airport to find out after a lot of inquiring that this was a mistake. Not a good Kayak experience.

After living in Europe for five years and flying with Lufthansa and KLM airlines, I’ve realized that United Airlines is now a budget carrier. The flight attendant are not friendly. The seats are not comfortable. And everything comes at a cost. I will be flying with KLM and Skyteam like Delta to the US going forward no doubt. United Airlines is not what it once was:

Delayed take off but I think they waited for passengers.

I had to fly United where the flight crew was atrocious

Flight was delayed for no reason and I missed my connection. This added another day of travel and I missed an event I was traveling home for.

I traveled with my sister, however ,we booked a flight separately, and we don't sitting next to each other. The staff on the board where on the top of this unit they find us sitting together. Ty lufthansa team. U are the best

Courtesy of waitress. Could improve on time management and check-in

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