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Cheap flights from Billund to Chicago from $452

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Billund to Chicago departing on 8/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Billund to Chicago (BLL-CHI)

Cheap round-trip flights

Lufthansa Logo
2:40 pm - 7:55 pmBLL-ORD
12h 15m1 stop
Lufthansa Logo
6:00 pm - 12:25 pmORD-BLL
11h 25m1 stop
$452Lufthansa
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Thu, Aug 28 - Mon, Sep 1
Air Canada Logo
6:30 am - 9:13 amBLL-ORD
33h 43m2 stops
Air Canada Logo
2:00 pm - 1:20 pmORD-BLL
16h 20m2 stops
$461Air Canada
Find Deal
Sun, Nov 16 - Thu, Nov 20
Lufthansa Logo
6:00 am - 12:55 pmBLL-ORD
13h 55m1 stop
Lufthansa Logo
4:00 pm - 10:05 amORD-BLL
11h 05m1 stop
$466Lufthansa
Find Deal
Wed, Sep 17 - Sun, Sep 28
Logo
6:30 am - 2:55 pmBLL-ORD
15h 25m2 stops
Logo
10:35 pm - 6:00 pmORD-BLL
12h 25m1 stop
$472
Find Deal
Sun, Nov 16 - Thu, Nov 20
Lufthansa Logo
6:30 am - 1:10 pmBLL-ORD
13h 40m1 stop
Lufthansa Logo
10:35 pm - 6:00 pmORD-BLL
12h 25m1 stop
$486Lufthansa
Find Deal
Sun, Nov 16 - Thu, Nov 20
Lufthansa Logo
6:00 am - 7:55 pmBLL-ORD
20h 55m1 stop
Lufthansa Logo
4:00 pm - 10:05 amORD-BLL
11h 05m1 stop
$491Lufthansa
Find Deal
Wed, Sep 17 - Sun, Sep 28
United Airlines Logo
6:30 am - 2:55 pmBLL-ORD
15h 25m2 stops
United Airlines Logo
3:20 pm - 9:45 amORD-BLL
11h 25m1 stop
$494United Airlines
Find Deal
Sun, Nov 16 - Thu, Nov 20
Air France Logo
6:35 pm - 2:40 pmBLL-ORD
27h 05m1 stop
Air France Logo
4:15 pm - 10:30 amORD-BLL
11h 15m1 stop
$497Air France
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Tue, Sep 16 - Sat, Sep 27
Delta Logo
6:00 am - 5:45 pmBLL-ORD
18h 45m2 stops
Delta Logo
5:15 pm - 1:30 pmORD-BLL
13h 15m2 stops
$533Delta
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Wed, Sep 17 - Sat, Sep 27
Delta Logo
10:15 am - 6:35 pmBLL-MDW
15h 20m2 stops
Delta Logo
1:08 pm - 10:30 amMDW-BLL
14h 22m2 stops
$533Delta
Find Deal
Wed, Sep 17 - Sat, Sep 27

Delta flights from Billund to Chicago

Our best Delta deals on Billund to Chicago flight tickets
Delta
Sep 17
BLL6:00 amBillund
18h 45m
2 stops
ORD5:45 pmChicago O'Hare Intl
Sep 27
ORD5:15 pmChicago O'Hare Intl
13h 15m
2 stops
BLL1:30 pmBillund
$533
Find similar
Delta
Sep 17
BLL6:00 amBillund
18h 45m
2 stops
ORD5:45 pmChicago O'Hare Intl
Sep 27
ORD1:00 pmChicago O'Hare Intl
13h 30m
2 stops
BLL9:30 amBillund
$534
Find similar
Delta
Sep 17
BLL6:00 amBillund
18h 45m
2 stops
ORD5:45 pmChicago O'Hare Intl
Sep 28
ORD4:15 pmChicago O'Hare Intl
10h 20m
1 stop
BLL9:35 amBillund
$537
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KLM flights from Billund to Chicago

Our best KLM deals on Billund to Chicago flight tickets
KLM
Sep 18
BLL11:55 amBillund
33h 15m
1 stop
ORD2:10 pmChicago O'Hare Intl
Sep 28
ORD4:15 pmChicago O'Hare Intl
14h 15m
1 stop
BLL1:30 pmBillund
$550
Find similar
KLM
Sep 18
BLL11:55 amBillund
33h 15m
1 stop
ORD2:10 pmChicago O'Hare Intl
Sep 28
ORD4:15 pmChicago O'Hare Intl
10h 20m
1 stop
BLL9:35 amBillund
$559
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Billund to Chicago 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, momondo users made 832,500 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Billund to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BillundChicago

BLL - ORD

BLLORD

Billund

Thu 8/28

2:40 pm-7:55 pm

1 stop12h 15m

Chicago O'Hare Intl

Mon 9/1

6:00 pm-12:25 pm

1 stop11h 25m

$452

BillundChicago

BLL - ORD

BLLORD

Billund

Sun 11/16

6:30 am-9:13 am

2 stops33h 43m

Chicago O'Hare Intl

Thu 11/20

2:00 pm-1:20 pm

2 stops16h 20m

$461

BillundChicago

BLL - ORD

BLLORD

Billund

Wed 9/17

6:00 am-12:55 pm

1 stop13h 55m

Chicago O'Hare Intl

Sun 9/28

4:00 pm-10:05 am

1 stop11h 05m

$466

BillundChicago

BLL - ORD

BLLORD

Billund

Sun 11/16

6:30 am-2:55 pm

2 stops15h 25m

Chicago O'Hare Intl

Thu 11/20

10:35 pm-6:00 pm

1 stop12h 25m

$472

BillundChicago

BLL - ORD

BLLORD

Billund

Sun 11/16

6:30 am-1:10 pm

1 stop13h 40m

Chicago O'Hare Intl

Thu 11/20

10:35 pm-6:00 pm

1 stop12h 25m

$486

BillundChicago

BLL - ORD

BLLORD

Billund

Wed 9/17

6:00 am-7:55 pm

1 stop20h 55m

Chicago O'Hare Intl

Sun 9/28

4:00 pm-10:05 am

1 stop11h 05m

$491

BillundChicago

BLL - ORD

BLLORD

Billund

Sun 11/16

6:30 am-2:55 pm

2 stops15h 25m

Chicago O'Hare Intl

Thu 11/20

3:20 pm-9:45 am

1 stop11h 25m

$494

BillundChicago

BLL - ORD

BLLORD

Billund

Tue 9/16

6:35 pm-2:40 pm

1 stop27h 05m

Chicago O'Hare Intl

Sat 9/27

4:15 pm-10:30 am

1 stop11h 15m

$497

BillundChicago

BLL - ORD

BLLORD

Billund

Wed 9/17

6:00 am-5:45 pm

2 stops18h 45m

Chicago O'Hare Intl

Sat 9/27

5:15 pm-1:30 pm

2 stops13h 15m

$533

BillundChicago

BLL - MDW

BLLMDW

Billund

Wed 9/17

10:15 am-6:35 pm

2 stops15h 20m

Chicago Midway

Sat 9/27

1:08 pm-10:30 am

2 stops14h 22m

$533

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Chicago from

How to get the cheapest flight ticket from Billund to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Chicago?

The month of February is, on average, the cheapest month to fly to Chicago from Billund, with most prices found around $461. If you’re not able to fly to Chicago in February, then March is your next best option. Flight prices from Billund to Chicago during March average around $507.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Tuesday when prices can be found for as low as $408. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Billund to Chicago for around $850.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the morning. Flights from Billund to Chicago during this time can be as low as $564. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $595.

How far in advance should I book a flight to Chicago?

You are more likely to see cheaper flights to Chicago from Billund when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $656 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Billund for as low as $564 on momondo.

When to book flights from Billund to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Billund to Chicago according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Billund to Chicago (BLL to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Billund to Chicago

Best Price Found

$452

Fastest flight time

12h 00m

Direct flights

None

Airports in Chicago

2 airports
The best flight deal from Billund to Chicago found on momondo in the last 72 hours is $452
The fastest flight from Billund to Chicago takes 12h 00m
There are no direct flights from Billund to Chicago. Popular non-direct routes for this connection are Billund Airport - Chicago O'Hare Intl Airport and Billund Airport - Chicago Midway Airport.
There are 2 airports near Chicago: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)
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  • How far is Billund to Chicago by plane?

    The straight-line distance from Billund to Chicago is 4131.8 mi. Flights usually cover this in 12h 00m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Billund Airport to Chicago?

    Prices for flights from Billund Airport to Chicago refresh daily.

  • How many operators does momondo search for flights from Billund Airport to Chicago?

  • How old do you have to be to fly from Billund Airport to Chicago?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Billund Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The required travel and health documents for your Chicago trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Billund to Chicago?

Best airlines flying from Billund to Chicago

Compare and see reviews for airlines that fly from Billund to Chicago with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $530Free CancellationRating
6.8
7,317 reviews
Search Lufthansa flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Saint Joseph
Lansing
Portage
Schererville
Valparaiso
Crown Point
Munster
Chesterton
Monticello
Porter
Griffith
Saint John

Why use momondo?

Why should I use momondo to find a flight deal from Billund to Chicago?

It is quick and easy to find Billund to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

Can I find flights from Billund to Chicago with flexible booking policies on momondo?

Yes. All flights to Chicago from Billund on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Billund to Chicago?

momondo provides multiple filters to help you find the best flight to Chicago from Billund. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Billund to Chicago right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Billund to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport