ORD - BIL

$116 Find Cheap Flights from Chicago O'Hare Airport to Billings

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Billings departing on 4/8. 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 Billings

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

Cheapest round-trip
$249
United Airlines
Wed 2/11Wed 2/18
ORD - BIL • 1 stop
Cheapest non-stop
$309
United Airlines
Sat 6/13Sat 6/20
ORD - BIL • Non-stop
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We hope you love your trip to Billings!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from O'Hare Intl to Billings (ORD-BIL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from O'Hare Intl to Billings 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 O'Hare Intl to Billings

Wed, Feb 11 - Wed, Feb 18
United Airlines Logo
7:00 am - 1:24 pm
ORD
-
BIL
7h 24m
1 stop
United Airlines Logo
5:53 pm - 11:59 pm
BIL
-
ORD
5h 06m
1 stop
$249United Airlines
Tue, Feb 3 - Sat, Feb 7
Delta Logo
11:15 am - 10:31 pm
ORD
-
BIL
12h 16m
2 stops
Delta Logo
6:00 am - 12:15 pm
BIL
-
ORD
5h 15m
1 stop
$254Delta
Mon, Feb 9 - Mon, Feb 16
Delta Logo
12:30 pm - 7:24 pm
ORD
-
BIL
7h 54m
1 stop
Delta Logo
5:10 am - 12:19 pm
BIL
-
ORD
6h 09m
1 stop
$269Delta
Tue, Jan 27 - Thu, Feb 5
Delta Logo
12:30 pm - 7:24 pm
ORD
-
BIL
7h 54m
1 stop
Delta Logo
5:15 am - 12:41 pm
BIL
-
ORD
6h 26m
1 stop
$274Delta
Tue, Feb 10 - Tue, Feb 17
United Airlines Logo
7:00 am - 1:24 pm
ORD
-
BIL
7h 24m
1 stop
United Airlines Logo
5:53 pm - 11:59 pm
BIL
-
ORD
5h 06m
1 stop
$277United Airlines
Fri, Feb 20 - Mon, Feb 23
United Airlines Logo
2:02 pm - 9:21 pm
ORD
-
BIL
8h 19m
1 stop
United Airlines Logo
5:53 pm - 11:59 pm
BIL
-
ORD
5h 06m
1 stop
$278United Airlines
Wed, Jan 28 - Wed, Feb 4
Delta Logo
12:30 pm - 7:24 pm
ORD
-
BIL
7h 54m
1 stop
Delta Logo
11:50 am - 9:30 pm
BIL
-
ORD
8h 40m
2 stops
$279Delta
Wed, Feb 25 - Tue, Mar 3
Delta Logo
10:35 am - 7:39 pm
ORD
-
BIL
10h 04m
2 stops
Delta Logo
6:20 am - 4:41 pm
BIL
-
ORD
9h 21m
2 stops
$280Delta
Sat, Apr 25 - Fri, May 1
United Airlines Logo
2:30 pm - 8:57 pm
ORD
-
BIL
7h 27m
1 stop
United Airlines Logo
5:51 pm - 11:57 pm
BIL
-
ORD
5h 06m
1 stop
$281United Airlines
Wed, Jan 28 - Tue, Feb 3
Delta Logo
1:58 pm - 10:31 pm
ORD
-
BIL
9h 33m
2 stops
Delta Logo
11:50 am - 9:30 pm
BIL
-
ORD
8h 40m
2 stops
$285Delta
Booking Insights

KAYAK's insights & trends for O'Hare Intl to Billings flights

Get data-powered insights and trends into flights from O'Hare Intl to Billings 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 Chicago O'Hare Airport to Billings?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Billings clicked on KAYAK for each day over the last 12 months.

For Chicago O'Hare Airport to Billings, Monday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Billings back to Chicago O'Hare Airport, the best deals are generally found on Wednesday, with Sunday being the most expensive.

Can I save money by flying with a layover from Chicago O'Hare Intl Airport to Billings?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $295 on average.

Good to know

Cheapest flight$116
Most popular time to fly with an average 19% increase in price.
Flight from Chicago O'Hare Airport to Billings

When to book flights from O'Hare Intl to Billings

Are your dates flexible? Find out the best times to travel from O'Hare Intl to Billings 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 O'Hare Airport to Billings flights

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

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Billings was $116 for a one-way ticket and $240 for a round-trip.

  • Do I need a passport to fly between Chicago O'Hare Airport and Billings?

    No

  • Which airlines offer Wi-Fi service onboard planes from Chicago O'Hare Airport to Billings?

    Only American Airlines offers inflight Wi-Fi service on the Chicago O'Hare Airport to Billings flight route.

  • Which aircraft models fly most regularly from Chicago O'Hare Airport to Billings?

    The Embraer 175 is the aircraft model that flies most regularly on the Chicago O'Hare Airport to Billings flight route.

  • Which airline alliances offer flights from Chicago O'Hare Airport to Billings?

    Star Alliance, and oneworld are the airline alliances operating flights between Chicago O'Hare Airport and Billings, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Chicago to Billings, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to Billings are United Airlines and American Airlines. With an average price for the route of $388 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $442 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport to Billings?

    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 O'Hare Airport to Billings.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings from Chicago O'Hare Airport 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 O'Hare Airport to Billings?

    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 Billings with an airline and back to Chicago O'Hare Airport with another airline. Booking your flights between Chicago O'Hare Airport and BIL 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 O'Hare Airport to Billings?

    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 Billings from Chicago O'Hare Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to Billings

  • Looking for a cheap flight? 25% of our users found flights on this route for $379 or less round-trip.

Reviews of the top airlines flying from O'Hare Intl to Billings

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Billings. 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 O'Hare Intl to Billings? 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.
7.4
United AirlinesOverall score based on 9163 reviews
7.1Entertainment
8.1Crew
7.3Comfort
6.6Food
7.7Boarding
Airline reviews

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

6.0 GoodPatricia, Jan 2026
ORD - LAS
Read more United Airlines reviews

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

I understand weather is an issue, but making us chase our plane down at five scheduled gates across three terminals in an airport the size of O'Hare was unfair. They'd have probably been better off to leave gates as TBD until the inbound plane is in final approach instead of running us all over the place. Also, props to the consistently-unprepared ground crew in Richmond for once again leaving my lane parked short of the gate because they couldn't have a crew in place on time with 2 hours notice...

cabin crew was OK, food was OK, the trip from the US to Munich was actually pretty bad comfort wise. Noisy aircraft, lights never dimmed even in Business class (night flight) barely sufficient amenities for the price. I have millions of miles with United but TBH American is gaining ground and Delta has always been marginally better then United although on paper United has more longes and cheaper upgrades.

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Great flight. On time boarding. Smooth flight and on time arrival at EWR. The flight crew was marvelous and there was a great selection of movies on the entertainment system. Our bags were at the carousel before we got there. Another excellent flight from United.

I liked the snacks and the flight attendants were friendly.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

We experienced gate changes and a long delay. My seat was dirty when I boarded and I had to use wipes to clean it myself. There was an unpleasant and overpowering cleaning product scent on the plane as well that lingered through the flight.

My carry on baggage was damaged. Entire trip, I had to carry the baggage. When complained to the boarding crew, they got mad at me and still asked me to valet check in the cabin baggage. Rude boarding crew!!!

Crew were all friendly and helpful. It was a short flight so just a beverage service with a cookie. After we were boarded the plane took about 45 minutes to leave the gate but it was New Year’s Eve so not shocking there was some delay. Overall good experience and very grateful.

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

We loved the steward on the plane. He made the night enjoyable

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Everything you need to know for your flight from O'Hare Intl to Billings

Information on your arrival and departure airports