Cheap flights from Chicago O'Hare Intl Airport to Great Falls from $118
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Great Falls departing on 7/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Delta flights from Chicago O'Hare Intl Airport to Great Falls
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United Airlines flights from Chicago O'Hare Intl Airport to Great Falls
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How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Great Falls
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Great Falls?
The cheapest day to depart on your flight to Great Falls is on a Friday when prices can be found for as low as $397. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from Chicago O'Hare Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $676.
What is the cheapest time of day to depart on your flight to Great Falls?
According to our data, the cheapest time of day to fly to Great Falls is in the afternoon. momondo users have found flights departing from Chicago O'Hare Intl Airport to Great Falls in the afternoon for as low as $398. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $676 on average. Flights to Great Falls from Chicago O'Hare Intl Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Chicago O'Hare Intl to Great Falls flight route?
Fly from Chicago O'Hare Intl to Great Falls for the best Chicago O'Hare Intl - Great Falls flight prices
What cabin class options are available on Chicago O'Hare Intl to Great Falls flights?
There are 2 cabin classes available to choose from on Chicago O'Hare Intl to Great Falls flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from Chicago O'Hare Intl Airport to Great Falls on average per week?
As of June 2025, there are 1 flights per week flying from Chicago O'Hare Intl Airport to Great Falls. The most common day of the week flights depart is Sat, with 100% of flights taking off on this day.
When to book flights from Chicago O'Hare Intl Airport to Great Falls
Cheap Chicago O'Hare Intl Airport to Great Falls (ORD to GTF) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Great Falls
How far is Chicago O'Hare Intl to Great Falls by plane?
There are 1203.7 mi between Chicago O'Hare Intl and Great Falls. 3h 44m is a normal flight duration for this route.
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Great Falls Airport?
Prices for flights from Chicago O'Hare Intl Airport to Great Falls Airport were last updated today.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Great Falls Airport?
As of June 2025, there are 2 operators available to choose from for flights from Chicago O'Hare Intl Airport to Great Falls Airport.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Great Falls Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Great Falls Airport.
What documentation or ID do you need to fly to Great Falls Airport?
The necessary travel and health documents for your Great Falls Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Chicago O'Hare Intl Airport to Great Falls?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Chicago O'Hare Intl Airport to Great Falls is Embraer 175 (Enhanced Winglets) (66.67% of total bookings). The next most popular plane model is Embraer 170 (33.33%).
What is the most popular airline from Chicago O'Hare Intl Airport to Great Falls?
momondo data reveals that the most frequently booked airline on the route from Chicago O'Hare Intl Airport to Great Falls is United Airlines, representing 80% of all bookings. The subsequent popular airline is Alaska Airlines at 20%.
Best airlines flying from Chicago O'Hare Intl Airport to Great Falls
Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Great Falls with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $225 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $248 | Free Cancellation | Rating 7.4 8,801 reviews |
United Airlines Flights From Chicago O'Hare Intl Airport to Great Falls
United Airlines flies from Chicago O'Hare Intl Airport to Great Falls around 1 time per week, with 8,801 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Chicago O'Hare Intl Airport to Great Falls in the last 72 hours was $248 (round-trip), much lower than the average airfare cost of $452 for United Airlines flights on this route.
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Why should I use momondo to find a flight deal from Chicago to Great Falls?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Great Falls from Chicago.
Can I find flights from Chicago to Great Falls with flexible booking policies on momondo?
Flights from Chicago to Great Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Chicago to Great Falls?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Great Falls from Chicago.
I’m not ready to book a flight from Chicago to Great Falls right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Chicago to Great Falls now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Great Falls and let you know when they change.