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Cheap flights from Billund to Chicago from $478

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 11/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

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Air France Logo
6:00 am - 2:20 pmBLL-ORD
15h 20m1 stop
Air France Logo
5:20 pm - 2:35 pmORD-BLL
14h 15m1 stop
$478Air France
Find Deal
Mon, Nov 10 - Mon, Nov 17
Air France Logo
2:30 pm - 12:01 amBLL-ORD
16h 31m2 stops
Air France Logo
5:20 pm - 2:35 pmORD-BLL
14h 15m1 stop
$481Air France
Find Deal
Mon, Nov 10 - Mon, Nov 17
Multiple Airlines Logo
2:30 pm - 12:01 amBLL-ORD
16h 31m2 stops
Multiple Airlines Logo
1:25 pm - 9:40 amORD-BLL
13h 15m2 stops
$492Multiple Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 17
Air France Logo
6:00 am - 2:20 pmBLL-ORD
15h 20m1 stop
Air France Logo
5:20 pm - 2:35 pmORD-BLL
14h 15m1 stop
$502Air France
Find Deal
Mon, Nov 10 - Mon, Nov 17
Delta Logo
10:25 am - 2:20 pmBLL-ORD
10h 55m1 stop
Delta Logo
5:20 pm - 2:35 pmORD-BLL
14h 15m1 stop
$504Delta
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Mon, Nov 10 - Mon, Nov 17
Delta Logo
6:00 am - 5:53 pmBLL-ORD
18h 53m2 stops
Delta Logo
5:08 pm - 2:35 pmORD-BLL
14h 27m2 stops
$510Delta
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Mon, Nov 10 - Mon, Nov 17
United Airlines Logo
6:45 am - 3:20 pmBLL-ORD
15h 35m1 stop
United Airlines Logo
6:25 pm - 1:25 pmORD-BLL
12h 00m1 stop
$532United Airlines
Find Deal
Sat, Nov 8 - Wed, Nov 12
United Airlines Logo
2:15 pm - 11:43 pmBLL-ORD
16h 28m2 stops
United Airlines Logo
1:00 pm - 10:00 amORD-BLL
14h 00m2 stops
$537United Airlines
Find Deal
Sat, Nov 8 - Wed, Nov 12
British Airways Logo
1:20 pm - 6:45 pmBLL-ORD
12h 25m1 stop
British Airways Logo
9:45 pm - 7:45 pmORD-BLL
15h 00m1 stop
$701British Airways
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Wed, Nov 26 - Sun, Jan 4
Multiple Airlines Logo
6:00 am - 8:05 pmBLL-ORD
21h 05m3 stops
Multiple Airlines Logo
6:50 pm - 9:25 amORD-BLL
31h 35m3 stops
$804Multiple Airlines
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Mon, Nov 10 - Mon, Nov 17

Air France flights from Billund to Chicago

Our best Air France deals on Billund to Chicago flight tickets
Air France
Nov 10
BLL6:00 amBillund
15h 20m
1 stop
ORD2:20 pmChicago O'Hare Intl
Nov 17
ORD5:20 pmChicago O'Hare Intl
14h 15m
1 stop
BLL2:35 pmBillund
$478
Find similar
Air France
Nov 10
BLL2:30 pmBillund
16h 31m
2 stops
ORD12:01 amChicago O'Hare Intl
Nov 17
ORD5:20 pmChicago O'Hare Intl
14h 15m
1 stop
BLL2:35 pmBillund
$481
Find similar
Air France
Nov 10
BLL6:00 amBillund
15h 20m
1 stop
ORD2:20 pmChicago O'Hare Intl
Nov 17
ORD5:20 pmChicago O'Hare Intl
14h 15m
1 stop
BLL2:35 pmBillund
$502
Find similar

Delta flights from Billund to Chicago

Our best Delta deals on Billund to Chicago flight tickets
Delta
Nov 10
BLL10:25 amBillund
10h 55m
1 stop
ORD2:20 pmChicago O'Hare Intl
Nov 17
ORD5:20 pmChicago O'Hare Intl
14h 15m
1 stop
BLL2:35 pmBillund
$504
Find similar
Delta
Nov 10
BLL6:00 amBillund
18h 53m
2 stops
ORD5:53 pmChicago O'Hare Intl
Nov 17
ORD5:08 pmChicago O'Hare Intl
14h 27m
2 stops
BLL2:35 pmBillund
$510
Find similar
Delta
Nov 10
BLL2:30 pmBillund
16h 10m
2 stops
MDW11:40 pmChicago Midway
Nov 17
MDW1:47 pmChicago Midway
14h 33m
2 stops
BLL11:20 amBillund
$515
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 October 23, 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

Mon 11/10

6:00 am-2:20 pm

1 stop15h 20m

Chicago O'Hare Intl

Mon 11/17

5:20 pm-2:35 pm

1 stop14h 15m

$478

BillundChicago

BLL - ORD

BLLORD

Billund

Mon 11/10

2:30 pm-12:01 am

2 stops16h 31m

Chicago O'Hare Intl

Mon 11/17

5:20 pm-2:35 pm

1 stop14h 15m

$481

BillundChicago

BLL - ORD

BLLORD

Billund

Mon 11/10

2:30 pm-12:01 am

2 stops16h 31m

Chicago O'Hare Intl

Mon 11/17

1:25 pm-9:40 am

2 stops13h 15m

$492

BillundChicago

BLL - ORD

BLLORD

Billund

Mon 11/10

6:00 am-2:20 pm

1 stop15h 20m

Chicago O'Hare Intl

Mon 11/17

5:20 pm-2:35 pm

1 stop14h 15m

$502

BillundChicago

BLL - ORD

BLLORD

Billund

Mon 11/10

10:25 am-2:20 pm

1 stop10h 55m

Chicago O'Hare Intl

Mon 11/17

5:20 pm-2:35 pm

1 stop14h 15m

$504

BillundChicago

BLL - ORD

BLLORD

Billund

Mon 11/10

6:00 am-5:53 pm

2 stops18h 53m

Chicago O'Hare Intl

Mon 11/17

5:08 pm-2:35 pm

2 stops14h 27m

$510

BillundChicago

BLL - ORD

BLLORD

Billund

Sat 11/8

6:45 am-3:20 pm

1 stop15h 35m

Chicago O'Hare Intl

Wed 11/12

6:25 pm-1:25 pm

1 stop12h 00m

$532

BillundChicago

BLL - ORD

BLLORD

Billund

Sat 11/8

2:15 pm-11:43 pm

2 stops16h 28m

Chicago O'Hare Intl

Wed 11/12

1:00 pm-10:00 am

2 stops14h 00m

$537

BillundChicago

BLL - ORD

BLLORD

Billund

Wed 11/26

1:20 pm-6:45 pm

1 stop12h 25m

Chicago O'Hare Intl

Sun 1/4

9:45 pm-7:45 pm

1 stop15h 00m

$701

BillundChicago

BLL - ORD

BLLORD

Billund

Mon 11/10

6:00 am-8:05 pm

3 stops21h 05m

Chicago O'Hare Intl

Mon 11/17

6:50 pm-9:25 am

3 stops31h 35m

$804

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 $481. 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 $515.

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 $665 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 $533 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

Direct flights

None
There are no direct flights from Billund to Chicago. There are no popular flight routes from Billund to Chicago.
Search flight deals

  • 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 10h 55m, 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
7,518 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