Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

BLL - ORD

Find cheap flights from Billund to Chicago from $381

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 10/21. 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
0 bags
Sat 6/8
Sat 6/15

Search hundreds of travel sites at once for deals on flights to Chicago

 
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
In the last 7 days travelers have searched 43,895,468 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Billund to Chicago (BLL-ORD)

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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:05 pm - 10:45 amBLL-ORD
24h 40m1 stop
6:25 pm - 7:50 pmORD-BLL
18h 25m2 stops
$381British Airways
Find Deal
Mon, Oct 21 - Tue, Nov 5
5:05 pm - 10:45 amBLL-ORD
24h 40m1 stop
5:00 pm - 11:35 amORD-BLL
11h 35m1 stop
$382British Airways
Find Deal
Wed, Oct 23 - Mon, Nov 4
8:55 pm - 5:00 pmBLL-ORD
27h 05m2 stops
9:00 am - 11:35 amORD-BLL
19h 35m1 stop
Sun, Oct 20 - Mon, Nov 4
5:05 pm - 5:21 pmBLL-ORD
31h 16m2 stops
6:20 pm - 8:55 pmORD-BLL
20h 35m2 stops
$394American Airlines
Find Deal
Mon, Oct 21 - Sat, Nov 2
6:05 am - 12:15 pmBLL-ORD
13h 10m1 stop
11:35 pm - 6:10 pmORD-BLL
12h 35m1 stop
$397Lufthansa
Find Deal
Fri, Oct 18 - Thu, Oct 31
11:00 am - 11:14 pmBLL-ORD
19h 14m2 stops
12:45 pm - 1:20 pmORD-BLL
17h 35m2 stops
$405United Airlines
Find Deal
Mon, Oct 21 - Tue, Nov 5
2:50 pm - 3:00 pmBLL-ORD
31h 10m1 stop
4:55 pm - 1:20 pmORD-BLL
14h 25m2 stops
$414Air Canada
Find Deal
Sat, Oct 19 - Sat, Nov 2
4:35 pm - 5:00 pmBLL-ORD
31h 25m1 stop
10:00 am - 8:55 pmORD-BLL
28h 55m1 stop
Sat, Oct 19 - Sat, Nov 2
10:05 am - 6:40 pmBLL-ORD
15h 35m2 stops
4:30 pm - 11:20 amORD-BLL
11h 50m1 stop
$458KLM
Find Deal
Tue, Oct 22 - Sun, Nov 3
6:05 am - 12:15 pmBLL-ORD
13h 10m1 stop
10:25 pm - 11:20 pmORD-BLL
18h 55m1 stop
$465Lufthansa
Find Deal
Fri, Oct 18 - Wed, Oct 30

Flights from Billund to Chicago - Travel Insights & Trends

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 flights from Billund to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.
For Billund to Chicago, Monday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Chicago back to Billund, the best deals are generally found on Monday, with Thursday being the most expensive.

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 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 April, where tickets cost $421 on average. On the other hand, the most expensive months are July and December, where the average cost of tickets is $767 and $710 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from Billund to Chicago O'Hare Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 77 days before departure.

Good to know

Low season

February

High season

July

Cheapest flight

$381
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 31% increase in price.
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 $381 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, Star Alliance, and SkyTeam are the airline alliances operating flights between Billund and Chicago, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Billund to Chicago, KLM or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Billund to Chicago are KLM and Lufthansa. With an average price for the route of $523 and an overall rating of 7.8, KLM is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $489 and an overall rating of 7.0.

  • 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.

See more FAQs

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.
7.8
KLMOverall score based on 1590 reviews
7.6Comfort
8.4Crew
7.3Food
7.2Entertainment
7.8Boarding
Airline reviews

The food from Lagos to Amsterdam was was very poor compared to AMS-YYZ

8.0 ExcellentJacob Oluleke, Apr 2024LOS - AMS
Read more about KLM reviews

The food from Lagos to Amsterdam was was very poor compared to AMS-YYZ

The flight was delayed for 2 hrs. Because they didn’t have a crew to fly. And it is not a first time for klm to do that. Last time they cancelled my filght and rebooked me 3 days later. Not reliable airline

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

Booked connecting flights with KlM. My serving flight was the furthest part of the airport. On arrival in Zurich. My two cases arrived but only one carry on belong to my son. His three suitcase didn't arrive. After enquiring we discovered they were still in Amsterdam. We landed at 11.12. We eventually left the airport just after one.

I thought KLM was the best airline but the Lima - Amsterdam was 1 hours late, the Brussels - Amsterdam was 2.30 hours late and the Amsterdam - Lima was 30 minutes late

Mostly fine. Minor delays departing and arriving. Quite a cramped plane, not so much as regards legroom but very narrow seats. Quiet nice food. Non-working USB charger. Flight attendants were helpful but not particularly proactive — one had to work to get their attention (but all was fine once they notice you), very Dutch style:)

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

The food quality is poor. The staff are very friendly and accommodating. The entertainment program was limited. I experienced a delay of 30 minutes due to two issues. Passenger luggage had to be removed and there was a technical issue with the stairs not detaching from the aircraft. The pilot managed to compensate and we arrived only 15 minutes later. The luggage at Dubai airport was very slow. I waited over an hour.

All and all pretty good. It’s crowded but that is what flying is all about. But no complaints otherwise.

The seats are too cramped in that plane. If you’re above 1,80m consider alternatives or first class I guess… There were no emergency exits to seat somewhere with more legroom

The bad part was 2 hour delay and we were seating in the airplane it was getting hot and uncomfortable But after they fixed the problem everything went so smooth Crew were amazing very nice polite and caring

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Our flight to Chicago O'Hare was delayed an hour, causing us to miss our connection to MSP and spend an extra 3 hours at O'Hare so we could board a plane with a damaged door and wait another 45 minutes or so. The crew was great, the food decent, The drinks were great: 2 glasses of a nice South African Shiraz, an ice cold can of Beck's Beer, and Dewar's White Label on the rocks.

A350 has great entertainment. Make sure to watch the plane's external tail and nose camera's on landing and take off. Seats were a little hard for a 10 hour flight. I am gluten intolerant, they had good alternative meals for me on the flight.

Boarding was horrible. We were packed into a bus with few seats and made to stand for 10 to 15 minutes, then driven for 5 minutes on wild curves. Complementary food and drink was a tiny chocolate and a bottle of water. Seating was cramped. Aircraft had no video.

didn’t even get to go one of my returning flights cancelled and I wasn’t even in their system, vacation ruined thanks for nothing

Need more time for connecting flights in Munich Food seems worse now on Lufthansa Very uncomfortable seats

Better flight than mum to Frankfurt. But food was very mediocre.

Flight landed on time but land services kept us in the plane for 3 hours. I missed connecting flight.

Billund - Chicago Flights

Departure:

Billund (undefined)Denmark

Destination:

Chicago (ORD)United States

Return flight deals:

Chicago - Billund

Cabin classes: