ORD - BIL

$119 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 2/26. 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
Delta
Sat 1/24Fri 2/6
ORD - BIL • 1 stop
Cheapest non-stop
$419
American Airlines
Sat 6/13Sat 6/20
ORD - BIL • Non-stop
Top airlines
United Airlines
Cheapest • from $249 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Sat, Jan 24 - Fri, Feb 6
Delta Logo
12:55 pm - 7:24 pm
ORD
-
BIL
7h 29m1 stop
Delta Logo
5:15 am - 12:41 pm
BIL
-
ORD
6h 26m1 stop
$249Delta
Tue, Feb 10 - Sat, Feb 14
Delta Logo
1:58 pm - 10:31 pm
ORD
-
BIL
9h 33m2 stops
Delta Logo
5:10 am - 12:19 pm
BIL
-
ORD
6h 09m1 stop
$254Delta
Tue, Feb 10 - Sat, Feb 14
Delta Logo
1:58 pm - 10:31 pm
ORD
-
BIL
9h 33m2 stops
Delta Logo
6:20 am - 4:41 pm
BIL
-
ORD
9h 21m2 stops
$259Delta
Sat, Jan 24 - Fri, Feb 6
Delta Logo
12:55 pm - 7:24 pm
ORD
-
BIL
7h 29m1 stop
Delta Logo
11:50 am - 9:05 pm
BIL
-
ORD
8h 15m2 stops
$275Delta
Sun, Jan 18 - Wed, Jan 21
United Airlines Logo
7:00 am - 1:24 pm
ORD
-
BIL
7h 24m1 stop
United Airlines Logo
10:52 am - 6:46 pm
BIL
-
ORD
6h 54m1 stop
$291United Airlines
Sat, Jan 24 - Fri, Feb 6
Delta Logo
7:05 am - 7:24 pm
ORD
-
BIL
13h 19m2 stops
Delta Logo
11:50 am - 9:05 pm
BIL
-
ORD
8h 15m2 stops
$305Delta
Sat, Feb 14 - Wed, Feb 18
American Airlines Logo
2:50 pm - 11:01 pm
ORD
-
BIL
9h 11m1 stop
American Airlines Logo
1:53 pm - 10:23 pm
BIL
-
ORD
7h 30m1 stop
$324American Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
2:40 pm - 9:21 pm
ORD
-
BIL
7h 41m1 stop
United Airlines Logo
2:35 pm - 10:53 pm
BIL
-
ORD
7h 18m1 stop
$329United Airlines
Sat, Jun 13 - Sat, Jun 20
Delta Logo
3:50 pm - 10:37 pm
ORD
-
BIL
7h 47m1 stop
Delta Logo
5:45 am - 4:48 pm
BIL
-
ORD
10h 03m2 stops
$334Delta
Sat, Feb 14 - Wed, Feb 18
Delta Logo
5:15 pm - 10:26 pm
ORD
-
BIL
6h 11m1 stop
Delta Logo
6:20 am - 4:41 pm
BIL
-
ORD
9h 21m2 stops
$359Delta
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 $348 on average.

Good to know

Low seasonOctober
Cheapest flight$119
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 15% 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 $119 for a one-way ticket and $249 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 $454 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.

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 9115 reviews
8.1Crew
7.3Comfort
7.1Entertainment
7.7Boarding
6.6Food
Airline reviews

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.

10.0 ExcellentDr. Joseph, Dec 2025
ORD - EWR
Read more United Airlines reviews

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.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

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.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

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

Information on your arrival and departure airports