ORD - GTF

$162 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 6/3. 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
$318
Delta
Sat 5/23Mon 5/25
ORD - GTF • 1 stop
Cheapest non-stop
$423
United Airlines
Thu 7/16Thu 7/23
ORD - GTF • Non-stop
Nonstop flights
1 day a week
Sat
You can fly direct with United Airlines. Average duration is 0
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top airlines
Delta
Cheapest • from $318 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top layover airports
Denver (DEN)
Cheapest • Avg $435 (round-trip)
Salt Lake City (SLC)
Shortest trip • 6h 04m (one-way)
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 100% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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!
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, May 23 - Mon, May 25
Delta Logo
5:00 pm - 10:26 pm
ORD
-
GTF
6h 26m
1 stop
Delta Logo
1:07 pm - 9:50 pm
GTF
-
ORD
7h 43m
1 stop
$318Delta
Sat, May 23 - Mon, May 25
Delta Logo
1:44 pm - 10:26 pm
ORD
-
GTF
9h 42m
2 stops
Delta Logo
1:07 pm - 9:50 pm
GTF
-
ORD
7h 43m
1 stop
$324Delta
Sat, May 23 - Mon, May 25
Delta Logo
5:00 pm - 10:26 pm
ORD
-
GTF
6h 26m
1 stop
Delta Logo
5:40 am - 11:52 am
GTF
-
ORD
5h 12m
1 stop
$343Delta
Sat, May 23 - Mon, May 25
Delta Logo
9:25 am - 5:39 pm
ORD
-
GTF
9h 14m
2 stops
Delta Logo
5:40 am - 11:52 am
GTF
-
ORD
5h 12m
1 stop
$349Delta
Sat, May 23 - Mon, May 25
Delta Logo
7:00 am - 5:39 pm
ORD
-
GTF
11h 39m
2 stops
Delta Logo
5:40 am - 4:51 pm
GTF
-
ORD
10h 11m
2 stops
$354Delta
Tue, May 12 - Sat, May 16
Alaska Airlines Logo
8:48 pm - 6:12 pm
ORD
-
GTF
22h 24m
1 stop
Alaska Airlines Logo
6:52 pm - 6:20 am
GTF
-
ORD
10h 28m
1 stop
$378Alaska Airlines
Sat, May 23 - Mon, May 25
Delta Logo
1:44 pm - 10:26 pm
ORD
-
GTF
9h 42m
2 stops
Delta Logo
5:40 am - 4:51 pm
GTF
-
ORD
10h 11m
2 stops
$394Delta
Fri, Jul 17 - Sat, Jul 25
Delta Logo
8:52 am - 5:42 pm
ORD
-
GTF
9h 50m
2 stops
Delta Logo
5:40 am - 11:59 am
GTF
-
ORD
5h 19m
1 stop
$409Delta
Fri, Jul 31 - Fri, Aug 7
Delta Logo
7:45 am - 12:37 pm
ORD
-
GTF
5h 52m
1 stop
Delta Logo
1:15 pm - 9:48 pm
GTF
-
ORD
7h 33m
1 stop
$413Delta
Tue, May 12 - Sat, May 16
Delta Logo
7:45 am - 12:27 pm
ORD
-
GTF
5h 42m
1 stop
Delta Logo
1:07 pm - 11:59 pm
GTF
-
ORD
9h 52m
2 stops
$419Delta
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 is the cheapest month to fly from Chicago O'Hare Intl Airport to Great Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Great Falls, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to Great Falls is February, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $621 and $530 respectively.

Find deals

Good to know

Low seasonApril
Cheapest flight$162
Best time to beat the crowds with an average 29% drop 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 $162 for a one-way ticket and $318 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.

  • On which days can I fly direct from Chicago O'Hare Airport to Great Falls?

    You can catch a nonstop flight from Chicago O'Hare Airport to Great Falls on Saturday.

  • 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.

Prefer to fly direct from Chicago O'Hare Airport to Great Falls?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago O'Hare Intl to Great Falls.
Find which airlines fly direct from Chicago O'Hare Intl Airport to Great Falls Airport, which days they fly and book direct flights.

Direct departures

Chicago O'Hare Intl to Great Falls

Saturday

United Airlines

United Airlines

See more direct flights

Direct returns

Great Falls to Chicago O'Hare Intl

Saturday

United Airlines

United Airlines

See more direct flights

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 9680 reviews
8.1Crew
7.3Comfort
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

A long delay. Don't travel late in the day.

8.0 ExcellentTimothy, Apr 2026
ORD - CID
Read more United Airlines reviews

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

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)