GTF - ORD

$223 Find Cheap Flights from Great Falls to Chicago O'Hare Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Great Falls to O'Hare Intl departing on 12/4. 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 Chicago O'Hare Intl Airport

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

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

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

Mon, Dec 8 - Thu, Dec 11
Delta Logo
1:12 pm - 9:21 pmGTF-ORD
7h 09m1 stop
Delta Logo
7:20 am - 12:31 pmORD-GTF
6h 11m1 stop
$274Delta
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Mon, Dec 8 - Thu, Dec 11
Delta Logo
6:10 pm - 8:39 amGTF-ORD
13h 29m2 stops
Delta Logo
7:20 am - 12:31 pmORD-GTF
6h 11m1 stop
$280Delta
Find Deal
Fri, Nov 21 - Mon, Dec 1
Multiple Airlines Logo
10:56 am - 5:32 amGTF-ORD
17h 36m1 stop
Multiple Airlines Logo
9:22 pm - 10:22 amORD-GTF
38h 00m2 stops
$288Multiple Airlines
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Sun, Dec 7 - Sun, Dec 21
Multiple Airlines Logo
8:53 pm - 12:13 amGTF-ORD
26h 20m2 stops
Multiple Airlines Logo
10:49 pm - 9:35 pmORD-GTF
23h 46m1 stop
$305Multiple Airlines
Find Deal
Mon, Mar 9 - Fri, Mar 13
Hawaiian Airlines Logo
4:00 pm - 11:59 pmGTF-ORD
6h 59m1 stop
Hawaiian Airlines Logo
7:45 am - 3:20 pmORD-GTF
8h 35m1 stop
$311Hawaiian Airlines
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Wed, Dec 3 - Sun, Dec 21
Multiple Airlines Logo
11:12 am - 8:04 amGTF-ORD
19h 52m2 stops
Multiple Airlines Logo
10:49 pm - 9:35 pmORD-GTF
23h 46m1 stop
$333Multiple Airlines
Find Deal
Mon, Dec 1 - Sun, Dec 21
Multiple Airlines Logo
6:44 pm - 7:43 amGTF-ORD
35h 59m2 stops
Multiple Airlines Logo
10:49 pm - 9:35 pmORD-GTF
23h 46m1 stop
$335Multiple Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 24
Alaska Airlines Logo
7:35 pm - 6:21 amGTF-ORD
9h 46m1 stop
Alaska Airlines Logo
6:00 am - 6:41 pmORD-GTF
13h 41m1 stop
$399Alaska Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 24
Alaska Airlines Logo
7:35 pm - 6:21 amGTF-ORD
9h 46m1 stop
Alaska Airlines Logo
3:33 pm - 6:41 pmORD-GTF
28h 08m1 stop
$409Alaska Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
United Airlines Logo
2:30 pm - 11:59 pmGTF-ORD
8h 29m1 stop
United Airlines Logo
3:55 pm - 10:39 pmORD-GTF
7h 44m1 stop
$438United Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $274 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$274
Delta
Mon 12/8Thu 12/11
GTF - ORD • 1 stop
Cheapest one-way
$223
United Airlines
Thu 12/4
GTF - ORD • 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 O'Hare Intl!
Booking Insights

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

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

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

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

Good to know

Cheapest flight$223
Flight from Great Falls to Chicago O'Hare Airport

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

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

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

    In the last 3 days, the lowest price for a flight from Great Falls to Chicago O'Hare Intl Airport was $223 for a one-way ticket and $274 for a round-trip.

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

    A passport is not required to fly from Great Falls to Chicago O'Hare Airport.

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

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

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

    We unfortunately don’t have that data for this specific route.

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

    Star Alliance is the only airline alliance operating flights between Great Falls and Chicago O'Hare Airport.

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

    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 Great Falls to Chicago O'Hare Airport.

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

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

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

    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 Chicago O'Hare Airport from Great Falls 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 Great Falls to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying from Great Falls to Chicago. 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 Great Falls to O'Hare Intl? 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 8999 reviews
7.3Comfort
6.6Food
7.1Entertainment
7.7Boarding
8.1Crew
Airline reviews

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

10.0 ExcellentDr. Joseph, Oct 2025STL - ORD
Read more United Airlines reviews

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

Excellent experience. Starting with the agent at the Premier bag drop who noticed I was very early for my scheduled flight and offered to rebook me on an earlier flight with my seat preference. She would not let me leave the counter until she knew that all of the changes and new boarding pass showed up on my United app. At the gate, the flight boarded quickly such that we departed early and the flight was smooth. We arrived 20 minutes early at ORD and I was able to be home in time for dinner. One of the best flights I've had.

Salina to travers city was great! But the sept 24 Tranverse city was not! Traverse city to chichago was cancelled, i went to Denver & got to Salina 6 hours later!

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

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

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