GTF - CHI

$143 Find Cheap Flights from Great Falls to Chicago - Compare and Save

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 Chicago departing on 7/20. 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

 
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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$318
Typical prices: $863-$709
Delta
Tue 9/1Sun 9/6
GTF - ORD • 1 stop
Cheapest non-stop
$507
United Airlines
Thu 7/9Thu 7/16
GTF - ORD • Non-stop
Nonstop flights
4 days a week
Tue, Wed, Thu, Sat
You can fly direct with United Airlines. Average duration is 3h 18m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top airlines
Cheapest • from $318 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top layover airports
Cheapest • Avg $373 (round-trip)
Shortest trip • 6h 00m (one-way)
Insights
Insights
Insights
Insights
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Chicago!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Great Falls to Chicago (GTF-CHI)

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

Tue, Sep 1 - Sun, Sep 6
Delta Logo
1:08 pm - 9:30 pm
GTF
-
ORD
7h 22m
1 stop
Delta Logo
7:48 am - 12:28 pm
ORD
-
GTF
5h 40m
1 stop
$318Delta
Wed, Aug 12 - Fri, Aug 21
Delta Logo
1:08 pm - 9:30 pm
GTF
-
ORD
7h 22m
1 stop
Delta Logo
11:22 am - 10:38 pm
ORD
-
GTF
12h 16m
2 stops
$324Delta
Sat, Aug 15 - Fri, Aug 21
Delta Logo
6:18 pm - 8:44 am
GTF
-
ORD
13h 26m
2 stops
Delta Logo
1:59 pm - 10:38 pm
ORD
-
GTF
9h 39m
2 stops
$329Delta
Wed, Sep 9 - Wed, Sep 16
United Airlines Logo
2:25 pm - 10:46 pm
GTF
-
ORD
7h 21m
1 stop
United Airlines Logo
7:00 am - 1:29 pm
ORD
-
GTF
7h 29m
1 stop
$347United Airlines
Wed, Aug 12 - Tue, Aug 18
Delta Logo
1:08 pm - 9:30 pm
GTF
-
ORD
7h 22m
1 stop
Delta Logo
7:48 am - 12:28 pm
ORD
-
GTF
5h 40m
1 stop
$348Delta
Tue, Aug 11 - Fri, Aug 21
Delta Logo
1:08 pm - 9:30 pm
GTF
-
ORD
7h 22m
1 stop
Delta Logo
1:59 pm - 10:38 pm
ORD
-
GTF
9h 39m
2 stops
$354Delta
Thu, Nov 5 - Sun, Nov 8
Delta Logo
5:30 am - 2:57 pm
GTF
-
ORD
8h 27m
2 stops
Delta Logo
1:35 pm - 10:53 pm
ORD
-
GTF
10h 18m
2 stops
$359Delta
Mon, Aug 10 - Sun, Aug 16
Multiple Airlines Logo
10:19 am - 5:37 am
GTF
-
ORD
18h 18m
1 stop
Multiple Airlines Logo
7:15 am - 9:29 am
ORD
-
GTF
27h 14m
1 stop
$374Multiple Airlines
Tue, Jun 30 - Sat, Jul 4
Delta Logo
1:20 pm - 9:57 pm
GTF
-
ORD
7h 37m
1 stop
Delta Logo
5:00 pm - 10:40 pm
ORD
-
GTF
6h 40m
1 stop
$378Delta
Wed, Aug 12 - Thu, Aug 20
Delta Logo
1:08 pm - 9:30 pm
GTF
-
ORD
7h 22m
1 stop
Delta Logo
7:48 am - 12:28 pm
ORD
-
GTF
5h 40m
1 stop
$383Delta
Booking Insights

KAYAK's insights & trends for Great Falls to Chicago flights

Get data-powered insights and trends into flights from Great Falls to Chicago to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Great Falls to Chicago flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Great Falls to Chicago costs $556 on the route between Great Falls (GTF) and Chicago O'Hare Intl Airport (ORD). It is also the most popular route.

What is the cheapest month to fly from Great Falls to Chicago?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Great Falls to Chicago, 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 Great Falls to Chicago is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are October and May, where the average cost of round-trip tickets is $591 and $538 respectively.

Can I save money by flying with a layover from Great Falls to Chicago?

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 1 stop layover the cheapest option at $495 on average.

Good to know

Cheapest flight$143
Flight from Great Falls to Chicago O'Hare Airport

When to book flights from Great Falls to Chicago

Are your dates flexible? Find out the best times to travel from Great Falls to Chicago 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 flights from Great Falls to Chicago

  • What is the cheapest flight from Great Falls to Chicago?

    In the last 5 days, the lowest price for a flight from Great Falls to Chicago was $143 for a one-way ticket and $318 for a round-trip.

  • Do I need a passport to fly between Great Falls and Chicago?

    No

  • Which airports will I be using when flying from Great Falls to Chicago?

    On your way to Chicago, you’ll fly out from Great Falls. You’ll be landing in one of Chicago’s 2 airports: Chicago Midway or Chicago O'Hare Intl.

  • Which aircraft models fly most regularly from Great Falls to Chicago?

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

  • Which airline alliances offer flights from Great Falls to Chicago?

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

  • On which days can I fly direct from Great Falls to Chicago?

    You can catch a nonstop flight from Great Falls to Chicago on on Tuesday, Wednesday, Thursday, and Saturday.

  • Which is the best airline for flights from Great Falls to Chicago, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Great Falls to Chicago are Delta and United Airlines. With an average price for the route of $530 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $549 and an overall rating of 7.4.

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

    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.

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

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

    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 with an airline and back to Great Falls with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Great Falls to Chicago?

    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 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

  • Looking for a cheap flight? 25% of our users found flights on this route for $576 or less round-trip.

Prefer to fly direct from Great Falls to Chicago?

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

Direct departures

Great Falls to Chicago

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

See more direct flights

Direct returns

Chicago to Great Falls

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

See more direct flights

Reviews of the top airlines flying from Great Falls to Chicago

 
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 Chicago? 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.
7.8
DeltaOverall score based on 8410 reviews
8.5Crew
7.8Entertainment
7.2Food
8.1Boarding
7.8Comfort
Airline reviews

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

2.0 MediocreMargaret, Jun 2026
MSY - LGA
Read more Delta reviews

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Boarded early, left early, arrived 40 mins early! A win win for me!

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

This flight is a quick way to get to Chicago, but a bit expensive.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

Everything you need to know for your flight from Great Falls to Chicago

Information on your arrival and departure airports