CHI - GTF

$143 Find Cheap Flights from Chicago 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 Chicago 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
Top airlines
Alaska Airlines
Cheapest • from $303 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
ORD-GTF
Cheapest
ORD-GTF
Most popular
Insights
Insights
Insights
Insights
When to travel
December
Cheapest • 35% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 Great Falls!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago 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 Chicago 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
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
Fri, Jan 2 - Mon, Jan 5
United Airlines Logo
5:50 pm - 10:46 pm
ORD
-
GTF
5h 56m1 stop
United Airlines Logo
2:35 pm - 11:00 pm
GTF
-
ORD
7h 25m1 stop
$406United 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, 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 - 9:19 pm
GTF
-
ORD
5h 44m1 stop
$493United Airlines
Fri, Jan 2 - Mon, Jan 5
United Airlines Logo
3:42 pm - 10:46 pm
ORD
-
GTF
8h 04m1 stop
United Airlines Logo
2:35 pm - 6:41 pm
GTF
-
ORD
27h 06m2 stops
$502United Airlines
Wed, Jan 7 - Fri, Jan 9
Delta Logo
1:28 pm - 10:30 pm
MDW
-
GTF
10h 02m2 stops
Delta Logo
5:30 am - 6:32 pm
GTF
-
MDW
12h 02m2 stops
$739Delta
Tue, Dec 30 - Sat, Jan 3
Delta Logo
9:29 am - 5:38 pm
MDW
-
GTF
9h 09m2 stops
Delta Logo
6:18 pm - 9:05 am
GTF
-
MDW
13h 47m2 stops
$1,980Delta
Booking Insights

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

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

What is the cheapest Chicago to Great Falls flight route?

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

The cheapest return flight from Chicago to Great Falls costs $505 on the route between Chicago O'Hare Intl Airport (ORD) and Great Falls (GTF). It is also the most popular route.

What’s the cheapest day of the week to fly from Chicago to Great Falls?

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

If you are looking for a flight deal from Chicago 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.

What is the cheapest month to fly from Chicago 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 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 to Great Falls is December, where tickets cost $248 (return) on average. On the other hand, the most expensive months are August and October, where the average cost of round-trip tickets is $513 and $479 respectively.

Good to know

Low seasonJanuary
Cheapest flight$143
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 34% increase in price.
Flight from Chicago O'Hare Airport to Great Falls

When to book flights from Chicago to Great Falls

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

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

    In the last 3 days, the lowest price for a flight from Chicago 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 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 to Great Falls?

    There are 2 airports in Chicago (Chicago Midway and Chicago O'Hare Intl.) and only 1 airport in Great Falls (Great Falls). The cheapest flights are generally found on the Chicago O'Hare Airport to Great Falls flight route.

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

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

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

    Star Alliance is the only airline alliance operating flights between Chicago and Great Falls.

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

    The two airlines most popular with KAYAK users for flights from Chicago to Great Falls are Delta and United Airlines. With an average price for the route of $333 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $458 and an overall rating of 7.4.

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

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago 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 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 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Chicago 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 Chicago 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.
7.9
DeltaOverall score based on 8008 reviews
8.1Boarding
7.9Entertainment
7.9Comfort
7.3Food
8.5Crew
Airline reviews

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

10.0 ExcellentMargaret, Dec 2025
BOS - PIT
Read more Delta reviews

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

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 Chicago to Great Falls

Information on your arrival and departure airports