Cheap flights from Great Falls to Chicago

Great Falls
GTF
Chicago FSS
CHI

Flight deals from Great Falls to Chicago

Below you can see the best deals on flights Great Falls — Chicago for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 27 August, from $434.

Top 10 cheap flights from Great Falls to Chicago

DL
DL
F9
$ 434

Great Falls — Chicago

18:18—19:02
27 Aug 2026
23 h 44 m
2 stops
DL
DL
F9
F9
$ 438

Great Falls — Chicago

18:18—20:15
24 Aug 2026
24 h 57 m
3 stops
DL
DL
F9
F9
$ 438

Great Falls — Chicago

18:18—20:15
24 Aug 2026
24 h 57 m
3 stops
DL
DL
F9
F9
$ 444

Great Falls — Chicago

18:18—16:00
24 Aug 2026
20 h 42 m
3 stops
DL
DL
F9
F9
$ 444

Great Falls — Chicago

18:18—16:00
25 Aug 2026
20 h 42 m
3 stops
DL
DL
F9
F9
$ 444

Great Falls — Chicago

18:18—16:00
28 Aug 2026
20 h 42 m
3 stops
AS
AS
F9
$ 448

Great Falls — Chicago

17:18—13:36
26 Aug 2026
19 h 18 m
2 stops
DL
DL
F9
$ 451

Great Falls — Chicago

05:40—19:02
24 Aug 2026
12 h 22 m
2 stops
UA
UA
F9
$ 464

Great Falls — Chicago

14:25—19:02
27 Aug 2026
27 h 37 m
2 stops
DL
DL
F9
F9
$ 464

Great Falls — Chicago

18:18—20:15
26 Aug 2026
24 h 57 m
3 stops

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Great Falls — Chicago flight

Looking for cheap flights from Great Falls to Chicago? Compare fares from different airlines, check the flight schedule and travel time — and book your Great Falls — Chicago ticket online at the best price.

The route has direct flights — around 1 flight per week, flights are operated by United Airlines, a nonstop flight takes about 3 h 18 min, the distance between the cities is around 1,969 km.

Planning your trip? You may find our Chicago travel guide, how to get from the airport into town and Chicago weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $434Min. price
AugustCheapest
AugustPeak season
YesDirect flights
1,969 kmDistance
3 h 18 minTravel time
1Airlines
1 / wkFlights

Flight ticket prices by day: Great Falls — Chicago

Below is a calendar of the lowest flight ticket prices for Great Falls — Chicago by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $434 in August, and the most expensive are around $434 in August. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Great Falls to Chicago by month. Tickets are usually cheapest in February (around $210) and priciest in July (about $306) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$220lowMay$258mediumSep$220low
Feb$210lowJun$296highOct$229medium
Mar$229mediumJul$306highNov$220low
Apr$239mediumAug$287highDec$267high

Some values are estimated based on seasonality.

When to fly

Weather in Chicago: it is warmest in July (up to 27 °C on average) and coolest in January (around 0 °C). The driest month is November.

Tickets are usually cheapest in August and most expensive in August. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Chicago

Dry and wet days · Chicago

Wind speed and direction · Chicago

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How to get the best deal on a Great Falls — Chicago ticket

  • Book ahead: fares for Great Falls — Chicago are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • The cheapest month to fly to Chicago is usually August — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Great Falls — Chicago route are operated by 1 airline; United Airlines runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

  • United AirlinesUA
    1x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight GTF → ORD1x/week
    100.0%Open →

Cities and airports on the Great Falls — Chicago route

Flights Great Falls — Chicago depart from Great Falls International Airport and arrive at O'Hare International Airport, Chicago Midway International Airport, Midway International Airport and Chicago Rockford International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Great Falls

GTF
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Chicago

CHI
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Great Falls — Chicago flight

How long is the flight from Great Falls to Chicago?

A nonstop Great Falls — Chicago flight takes about 3 h 18 min — the distance between the cities is around 1,969 km.

How far is it from Great Falls to Chicago?

The distance from Great Falls to Chicago is about 1,969 km, which a nonstop flight covers in around 3 h 18 min.

Are there direct flights from Great Falls to Chicago?

Yes, there are nonstop flights Great Falls — Chicago — around 1 flight per week.

Which airlines fly from Great Falls to Chicago?

Airlines operating Great Falls — Chicago include United Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Great Falls — Chicago flights use?

Flights from Great Falls depart from Great Falls International Airport, and arrive at O'Hare International Airport, Chicago Midway International Airport, Midway International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Great Falls to Chicago?

The price of a Great Falls — Chicago ticket depends on your travel date, season and demand: it is usually cheapest to fly in August, and most expensive in August. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Great Falls — Chicago?

Flights Great Falls — Chicago are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is August. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Great Falls to Chicago?

To catch a low fare Great Falls — Chicago, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually August.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Great Falls

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Salt Lake CityDenverSeattleEdmontonTri-CitiesIdaho Falls

Where else you can fly from Chicago

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New York CityTorontoDetroitWashington, D.C.AtlantaMinneapolisLos AngelesSeattleBostonDallasHoustonOrlandoDenverLondonNashvilleIndianapolisSan DiegoMontrealMilwaukeeSt. LouisCharlottePhiladelphiaColumbusKansas CityPhoenixMiamiLas VegasCincinnatiGrand RapidsDes MoinesRaleighSan FranciscoMadisonDaytonGreen BayTampaPittsburghLouisvilleKnoxvilleRochester

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