GTF - ORD

$298 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 2/15. 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 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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Everything you should know

Cheapest round-trip
$298
Alaska Airlines
Tue 3/10Thu 3/12
GTF - ORD • 1 stop
Cheapest one-way
$214
Delta
Sun 2/15
GTF - ORD • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $298 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+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 O'Hare Intl!
Flight Deals
Booking Insights
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

Tue, Mar 10 - Thu, Mar 12
Alaska Airlines Logo
4:57 pm - 11:56 pm
GTF
-
ORD
29h 59m
1 stop
Alaska Airlines Logo
7:00 am - 4:17 pm
ORD
-
GTF
10h 17m
1 stop
$298Alaska Airlines
Tue, Mar 10 - Thu, Mar 12
Alaska Airlines Logo
4:57 pm - 1:11 pm
GTF
-
ORD
19h 14m
2 stops
Alaska Airlines Logo
7:00 am - 4:17 pm
ORD
-
GTF
10h 17m
1 stop
$324Alaska Airlines
Fri, Feb 20 - Tue, Feb 24
Delta Logo
1:15 pm - 9:52 pm
GTF
-
ORD
7h 37m
1 stop
Delta Logo
2:05 pm - 10:29 pm
ORD
-
GTF
9h 24m
2 stops
$369Delta
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
2:25 pm - 10:53 pm
GTF
-
ORD
7h 28m
1 stop
United Airlines Logo
7:10 am - 1:43 pm
ORD
-
GTF
7h 33m
1 stop
$377United Airlines
Fri, Feb 20 - Tue, Feb 24
Delta Logo
1:15 pm - 9:52 pm
GTF
-
ORD
7h 37m
1 stop
Delta Logo
7:15 am - 12:30 pm
ORD
-
GTF
6h 15m
1 stop
$408Delta
Wed, Feb 18 - Sun, Feb 22
Delta Logo
6:20 pm - 8:38 am
GTF
-
ORD
13h 18m
2 stops
Delta Logo
7:15 am - 12:30 pm
ORD
-
GTF
6h 15m
1 stop
$422Delta
Tue, Mar 10 - Thu, Mar 12
Alaska Airlines Logo
4:57 pm - 1:11 pm
GTF
-
ORD
19h 14m
2 stops
Alaska Airlines Logo
2:07 pm - 4:17 pm
ORD
-
GTF
27h 10m
2 stops
$425Alaska Airlines
Wed, Mar 25 - Sun, Mar 29
United Airlines Logo
2:30 pm - 9:29 pm
GTF
-
ORD
5h 59m
1 stop
United Airlines Logo
2:35 pm - 9:17 pm
ORD
-
GTF
7h 42m
1 stop
$428United Airlines
Thu, Jul 9 - Mon, Jul 13
United Airlines Logo
12:30 pm - 4:46 pm
GTF
-
ORD
3h 16mnonstop
United Airlines Logo
5:00 am - 9:19 pm
ORD
-
GTF
17h 19m
1 stop
$436United Airlines
Tue, Feb 17 - Mon, Feb 23
United Airlines Logo
2:25 pm - 10:52 pm
GTF
-
ORD
7h 27m
1 stop
United Airlines Logo
2:02 pm - 9:33 pm
ORD
-
GTF
8h 31m
1 stop
$453United Airlines
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.

Can I save money by flying with a layover from Great Falls to Chicago O'Hare Intl Airport?

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 2 stops layover the cheapest option at $334 on average.

Find deals

Good to know

Cheapest flight$214
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 $214 for a one-way ticket and $298 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?

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

KAYAK’s top tips for finding a cheap flight from Great Falls to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $593 or less round-trip.

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 9242 reviews
7.1Entertainment
7.3Comfort
7.7Boarding
8.1Crew
6.6Food
Airline reviews

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

10.0 ExcellentYesica, Feb 2026
CHS - ORD
Read more United Airlines reviews

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

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

Information on your arrival and departure airports

Great Falls (GTF)
O'Hare Intl (ORD)