ORD - BLL

$521 Find Cheap Flights from Chicago to Billund

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Billund departing on 4/24. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Billund

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

Cheapest round-trip
$521
Typical prices: $786-$952
Lufthansa
Fri 4/24Sat 5/2
ORD - BLL • 1 stop
Cheapest one-way
Multiple Airlines
Mon 1/26
ORD - BLL • multi-stop
Top airlines
Lufthansa
Cheapest • from $521 (round-trip)
Scandinavian Airlines
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chicago to Billund (ORD-BLL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Billund 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Billund

Fri, Apr 24 - Sat, May 2
Lufthansa Logo
4:05 pm - 2:20 pm
ORD
-
BLL
15h 15m
1 stop
Lufthansa Logo
6:00 am - 7:55 pm
BLL
-
ORD
20h 55m
1 stop
$521Lufthansa
Sun, Feb 15 - Thu, Feb 19
Scandinavian Airlines Logo
7:10 pm - 10:35 am
ORD
-
BLL
32h 25m
1 stop
Scandinavian Airlines Logo
6:15 am - 4:45 pm
BLL
-
ORD
17h 30m
1 stop
$523Scandinavian Airlines
Fri, Apr 24 - Sat, May 2
Multiple Airlines Logo
8:20 pm - 10:00 am
ORD
-
BLL
30h 40m
2 stops
Multiple Airlines Logo
6:00 am - 12:55 pm
BLL
-
ORD
13h 55m
1 stop
$536Multiple Airlines
Wed, Mar 11 - Wed, Mar 18
United Airlines Logo
4:20 pm - 10:00 am
ORD
-
BLL
11h 40m
1 stop
United Airlines Logo
6:35 am - 4:20 pm
BLL
-
ORD
15h 45m
1 stop
$538United Airlines
Wed, Mar 11 - Wed, Mar 18
United Airlines Logo
12:50 pm - 1:25 pm
ORD
-
BLL
18h 35m
2 stops
United Airlines Logo
6:35 am - 2:25 pm
BLL
-
ORD
13h 50m
1 stop
$541United Airlines
Sun, Feb 15 - Thu, Feb 19
United Airlines Logo
3:20 pm - 10:00 am
ORD
-
BLL
11h 40m
1 stop
United Airlines Logo
6:30 am - 8:10 pm
BLL
-
ORD
20h 40m
2 stops
$546United Airlines
Sun, Feb 15 - Thu, Feb 19
United Airlines Logo
1:02 pm - 10:00 am
ORD
-
BLL
13h 58m
2 stops
United Airlines Logo
6:30 am - 2:55 pm
BLL
-
ORD
15h 25m
2 stops
$551United Airlines
Wed, Mar 11 - Wed, Mar 18
United Airlines Logo
12:50 pm - 10:00 am
ORD
-
BLL
15h 10m
2 stops
United Airlines Logo
10:20 am - 9:34 pm
BLL
-
ORD
17h 14m
2 stops
$552United Airlines
Fri, Apr 24 - Sat, May 2
United Airlines Logo
12:50 pm - 6:10 pm
ORD
-
BLL
22h 20m
2 stops
United Airlines Logo
6:00 am - 6:52 pm
BLL
-
ORD
19h 52m
2 stops
$557United Airlines
Fri, Apr 24 - Sat, May 2
Delta Logo
8:50 am - 9:35 am
ORD
-
BLL
17h 45m
2 stops
Delta Logo
6:00 am - 4:18 pm
BLL
-
ORD
17h 18m
2 stops
$647Delta
Booking Insights

KAYAK's insights & trends for Chicago to Billund flights

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

Which airlines provide the cheapest flights from Chicago to Billund?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Chicago to Billund were found on Lufthansa ($521) and Scandinavian Airlines ($523).

Find deals

Good to know

Low seasonMarch
Cheapest flight$521
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Chicago to Billund

When to book flights from Chicago to Billund

Are your dates flexible? Find out the best times to travel from Chicago to Billund 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 Chicago to Billund flights

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

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Billund was $521 for a round-trip ticket.

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

    Yes

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

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

  • Which airline alliances offer flights from Chicago to Billund?

    SkyTeam is the only airline alliance operating flights between Chicago and Billund.

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

    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 Chicago to Billund.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billund from Chicago 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 Chicago to Billund?

    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 Billund with an airline and back to Chicago with another airline. Booking your flights between Chicago and BLL 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 Chicago to Billund?

    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 Billund from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Chicago to Billund

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Billund. 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 Chicago to Billund? 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.
7.3
Scandinavian AirlinesOverall score based on 1667 reviews
6.6Entertainment
6.6Food
8.0Crew
7.6Boarding
7.3Comfort
Airline reviews

in Austria they made me check in my carry on luggage, and it never arrived in JFK... I had medication there on ice that is useless now, I filed a report and they still cant licate my luggage? what kind of joke is this?

6.0 GoodAnonymous, Jan 2026
VIE - CPH
Read more Scandinavian Airlines reviews

in Austria they made me check in my carry on luggage, and it never arrived in JFK... I had medication there on ice that is useless now, I filed a report and they still cant licate my luggage? what kind of joke is this?

The crew was friendly, the flight was pleasant. Thank you for your service!

Our originating flight into Copenhagen was an hour delayed, causing us to miss our main flight from Copenhagen to the US. There had been snow and we needed to be de-iced, but they seemed very slow getting the flight ready, with no explanation. The delay caused us to be put in with thousands stuck at the airport with an all day wait to get rebooked on a flight 2 days out.

Flight was completely full January 9th? I problem i had the stewardess was bumping into me constantly walking by? very annoying.. on Austrian air I dint have this issue at all...

One of our bags was never put on the flight in Copenhagen. Now that we're home in the USA, my wife is still without most of her clothes and personal items as she returns to work this week. Hoping for a quick resolution, but there seems to be little chance of speaking with an actual person in the process.

really nothing ...uncomfortable seating, cramped ....no better than a US short hopper flight.. never again

Amazing! Everyone was so nice and the food was so good!!

Cut out the nickel and dime pricing for "seat selection" and baggage, To do this on an international flight is just mind boggling. Seriously, why treat customers this way??? Nobody wants these hidden extra fees and everybody hates them. Also plane was too warm and no air vent, and water dripped from the ceiling at one point,

I have paid for extra legroom on my flight. My seat was broken and did not recline. The crew could not fix it and refused to provide me with another seat

Over all experience was good. However the connection time was too short at CPG. We missed our connecting flight to AMS as the passport control line was too long and by the time we got our passport control done it was too late I wish there were some SAS staff to help us out at the passport control center Though they put us in a KLM flight from CPG to AMS, That flight was also delayed by over two hours

Everything you need to know for your flight from Chicago to Billund

Information on your arrival and departure airports

Chicago (ORD)
Billund (BLL)