ORD - GTF

$143 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 1/15. 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 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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Everything you should know

Cheapest round-trip
$303
Alaska Airlines
Sat 1/17Wed 1/21
ORD - GTF • 1 stop
Cheapest one-way
$143
Alaska Airlines
Thu 1/15
ORD - GTF • 1 stop
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We hope you love your trip to Great Falls!
Flight Deals
Booking Insights
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

Sat, Jan 17 - Wed, Jan 21
Alaska Airlines Logo
8:00 am - 5:19 pm
ORD
-
GTF
10h 19m1 stop
Alaska Airlines Logo
5:59 pm - 2:38 pm
GTF
-
ORD
19h 39m1 stop
$303Alaska Airlines
Sat, Jan 17 - Wed, Jan 21
Alaska Airlines Logo
8:00 am - 5:19 pm
ORD
-
GTF
10h 19m1 stop
Alaska Airlines Logo
5:59 pm - 11:50 pm
GTF
-
ORD
28h 51m1 stop
$313Alaska Airlines
Sat, Jun 6 - Fri, Jun 12
Delta Logo
7:15 am - 12:23 pm
ORD
-
GTF
6h 08m1 stop
Delta Logo
6:20 pm - 7:26 am
GTF
-
ORD
12h 06m2 stops
$367Delta
Wed, Jan 7 - Fri, Jan 9
Alaska Airlines Logo
6:06 pm - 5:19 pm
ORD
-
GTF
24h 13m1 stop
Alaska Airlines Logo
5:59 pm - 11:37 pm
GTF
-
ORD
28h 38m2 stops
$385Alaska Airlines
Sat, Jan 17 - Wed, Jan 21
Alaska Airlines Logo
8:00 am - 5:19 pm
ORD
-
GTF
10h 19m1 stop
Alaska Airlines Logo
5:59 pm - 1:10 pm
GTF
-
ORD
18h 11m2 stops
$394Alaska Airlines
Wed, Jan 7 - Fri, Jan 9
Alaska Airlines Logo
3:35 pm - 5:19 pm
ORD
-
GTF
26h 44m1 stop
Alaska Airlines Logo
5:59 pm - 11:50 pm
GTF
-
ORD
28h 51m1 stop
$406Alaska Airlines
Wed, Dec 31 - Mon, Jan 5
United Airlines Logo
3:42 pm - 10:46 pm
ORD
-
GTF
8h 04m1 stop
United Airlines Logo
2:35 pm - 11:59 pm
GTF
-
ORD
8h 24m1 stop
$433United Airlines
Wed, Jan 7 - Fri, Jan 9
Alaska Airlines Logo
9:00 am - 5:19 pm
ORD
-
GTF
33h 19m2 stops
Alaska Airlines Logo
5:59 pm - 11:37 pm
GTF
-
ORD
28h 38m2 stops
$454Alaska Airlines
Wed, Dec 31 - Mon, Jan 5
United Airlines Logo
9:04 am - 10:46 pm
ORD
-
GTF
14h 42m2 stops
United Airlines Logo
2:35 pm - 11:59 pm
GTF
-
ORD
8h 24m1 stop
$493United Airlines
Sat, Jun 6 - Fri, Jun 12
Alaska Airlines Logo
6:00 am - 4:29 pm
ORD
-
GTF
11h 29m1 stop
Alaska Airlines Logo
4:55 pm - 10:32 pm
GTF
-
ORD
28h 37m1 stop
$569Alaska Airlines
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.

Find deals

Good to know

Low seasonApril
Cheapest flight$143
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly with an average 22% 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 $143 for a one-way ticket and $303 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 is the only airline alliance operating flights between Chicago O'Hare Airport and Great Falls.

  • 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 9092 reviews
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
8.1Crew
Airline reviews

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.

8.0 Excellentt, Dec 2025
ORD - RSW
Read more United Airlines reviews

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

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.

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

Information on your arrival and departure airports

Chicago O'Hare Airport (ORD)
Great Falls (GTF)