Cheap flights from Billund to Chicago from $475
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 9/17. 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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Cheap round-trip flights
British Airways flights from Billund to Chicago O'Hare Intl Airport
Our best British Airways deals on Billund to Chicago O'Hare Intl Airport flight tickets
Lufthansa flights from Billund to Chicago O'Hare Intl Airport
Our best Lufthansa deals on Billund to Chicago O'Hare Intl Airport flight tickets
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How to get the cheapest flight ticket from Billund to Chicago O'Hare Intl Airport
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 typical price of a round-trip flight between Billund and Chicago O'Hare Intl Airport?
What is the cheapest month to fly to Chicago O'Hare Intl Airport?
The month of March is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Billund averaging around $531.
What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?
The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Saturday when prices can be found for as low as $463. This is often the case because there is less demand to fly during this day of the week. On the other hand, Wednesday is the most expensive day to depart from Billund because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $697.
What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?
Flying to Chicago O'Hare Intl Airport from Billund in the morning is the least expensive time of day to depart. momondo users have found prices as low as $681 when looking at flights departing in the morning. Try not to purchase tickets at noon because they tend to be around $696. Of course, these prices can vary depending on the time of year and what airport you fly to.
How far in advance should I book a flight to Chicago O'Hare Intl Airport?
You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Billund when booking 22 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $636 when searching 22 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Billund for as low as $510 on momondo.
When to book flights from Billund to Chicago O'Hare Intl Airport
Cheap Billund to Chicago O'Hare Intl Airport (BLL to ORD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Billund to Chicago O'Hare Intl Airport
How far is Billund to Chicago O'Hare Intl by plane?
Chicago O'Hare Intl is 4135.5 mi away from Billund. A reasonable flight in good conditions will take 10h 55m.
When did momondo last update prices for flights from Billund Airport to Chicago O'Hare Intl Airport?
Prices for flights from Billund Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Billund Airport to Chicago O'Hare Intl Airport?
As of June 2025, there are 2 operators available to choose from for flights from Billund Airport to Chicago O'Hare Intl Airport.
How old do you have to be to fly from Billund Airport to Chicago O'Hare Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Billund Airport to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The required travel and health documents for your Chicago O'Hare Intl Airport 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 O'Hare Intl Airport. 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 O'Hare Intl Airport?
Based on momondo bookings for flights between Billund and Chicago O'Hare Intl Airport, the leading airline is Lufthansa, making up 68% of the total bookings. Other popular airlines include United Airlines with 32%.
Best airlines flying from Billund to Chicago O'Hare Intl Airport
Compare and see reviews for airlines that fly from Billund to Chicago O'Hare Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $427 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $559 | Free Cancellation | Rating 6.7 7,136 reviews |
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Why should I use momondo to find a flight deal from Billund to Chicago?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Billund to Chicago for you.
Can I find flights from Billund to Chicago with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Billund to Chicago flights to just show those with flexible booking policies.
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?
Price alerts on flights to Chicago from Billund are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.