ORD - GTF

$249 Find Cheap Flights from Chicago O'Hare Airport to Great Falls

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 Great Falls departing on 9/23. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Great Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Great Falls, 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 Great Falls, as well as popular online travel agencies
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Flight Deals

Cheap Flights from O'Hare Intl to Great Falls (ORD-GTF)

 
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 Great Falls 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 Great Falls

Sun, Oct 12 - Fri, Oct 17
United Airlines Logo
7:10 am - 1:26 pmORD-GTF
7h 16m1 stop
United Airlines Logo
2:31 pm - 9:30 pmGTF-ORD
5h 59m1 stop
$289United Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
7:20 am - 12:31 pmORD-GTF
6h 11m1 stop
Delta Logo
1:12 pm - 9:24 pmGTF-ORD
7h 12m1 stop
$321Delta
Find Deal
Sun, Oct 12 - Thu, Oct 16
United Airlines Logo
7:10 am - 1:26 pmORD-GTF
7h 16m1 stop
United Airlines Logo
2:31 pm - 11:59 pmGTF-ORD
8h 28m1 stop
$329United Airlines
Find Deal
Sat, Oct 18 - Fri, Oct 24
Multiple Airlines Logo
1:14 pm - 12:15 pmORD-GTF
24h 01m2 stops
Multiple Airlines Logo
10:27 pm - 12:17 amGTF-ORD
24h 50m1 stop
$352Multiple Airlines
Find Deal
Sat, Oct 18 - Fri, Oct 24
United Airlines Logo
2:17 pm - 9:11 pmORD-GTF
7h 54m1 stop
United Airlines Logo
2:31 pm - 10:39 pmGTF-ORD
7h 08m1 stop
$368United Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
9:50 am - 10:30 pmORD-GTF
13h 40m2 stops
Delta Logo
1:12 pm - 9:24 pmGTF-ORD
7h 12m1 stop
$417Delta
Find Deal
Sat, Sep 27 - Tue, Sep 30
United Airlines Logo
2:17 pm - 9:11 pmORD-GTF
7h 54m1 stop
United Airlines Logo
2:31 pm - 11:59 pmGTF-ORD
8h 28m1 stop
$438United Airlines
Find Deal
Mon, Sep 29 - Thu, Oct 2
United Airlines Logo
2:17 pm - 9:11 pmORD-GTF
7h 54m1 stop
United Airlines Logo
2:31 pm - 11:59 pmGTF-ORD
8h 28m1 stop
$442United Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
Alaska Airlines Logo
10:25 am - 6:55 pmORD-GTF
9h 30m2 stops
Alaska Airlines Logo
7:35 pm - 7:17 pmGTF-ORD
22h 42m2 stops
$528Alaska Airlines
Find Deal
Mon, Sep 29 - Thu, Oct 2
Alaska Airlines Logo
7:00 am - 3:49 pmORD-GTF
9h 49m2 stops
Alaska Airlines Logo
4:29 pm - 5:00 amGTF-ORD
11h 31m2 stops
$908Alaska Airlines
Find Deal

Everything you should know

Top airlines
United Airlines
Cheapest • from $289 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$289
United Airlines
Sun 10/12Fri 10/17
ORD - GTF • 1 stop
Cheapest one-way
$249
United Airlines
Tue 9/23
ORD - GTF • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Great Falls!
Booking Insights

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

Get data-powered insights and trends into flights from O'Hare Intl to Great Falls 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 Great Falls?

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

If you are looking for a flight deal from Chicago O'Hare Airport to Great Falls, look for departures on Wednesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Great Falls, Tuesday is the cheapest day to fly and Saturday is the most expensive.

Good to know

Low seasonApril
Cheapest flight$249
Best time to beat the crowds with an average 42% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Chicago O'Hare Airport to Great Falls

When to book flights from O'Hare Intl to Great Falls

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

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

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Great Falls was $249 for a one-way ticket and $289 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Chicago O'Hare Airport to Great Falls?

    Chicago O'Hare Airport and Great Falls are both served by 1 main airport. You will leave Chicago O'Hare Airport from Chicago O'Hare Intl and will be arriving at Great Falls.

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

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Chicago O'Hare Airport to Great Falls flight route.

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

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

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

    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 Great Falls.

  • 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 Great Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Great Falls 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 Great Falls?

    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 Great Falls with an airline and back to Chicago O'Hare Airport with another airline. Booking your flights between Chicago O'Hare Airport and GTF 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 Great Falls?

    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 Great Falls 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 airline flying from O'Hare Intl to Great Falls

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Great Falls. 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 Great Falls? 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 8929 reviews
7.7Boarding
8.1Crew
6.6Food
7.3Comfort
7.1Entertainment
Airline reviews

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

10.0 ExcellentAnonymous, Aug 2025ORD - MEM
Read more United Airlines reviews

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

A bit rush for transit. Food and entertainment are not available

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

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

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