$92 Find Cheap Flights from Illinois to Montana - Compare and Save

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 Illinois to Montana.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Illinois to Montana is likely to change within 7 days, so travelers know whether to wait or book now.

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 from Illinois to Montana with an airline and back with another airline.

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 from Illinois to Montana up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Illinois and Montana are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (58 flights per week), American Airlines (39 flights per week), and Alaska Airlines (30 flights per week).

There are 13 airports in Montana. The busiest airport is Gallatin Field Airport (BZN), with 35% of all flights arriving there.

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Montana is Bozeman Gallatin Field Airport (BZN), with an average flight price of $224.

Based on KAYAK data, the cheapest day to fly to Montana is Tuesday where round-trip tickets can be as cheap as $335. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $377 on average.

The cheapest time of day to fly to Montana is generally in the afternoon, when round-trip flights cost $342 on average. Morning departures are around 7% cheaper than evening flights, on average. The most expensive time of day to fly to Montana is generally in the evening, which is peak travel time and where the average cost of a ticket is $399.

The cheapest ticket to Montana from Illinois found in the last 5 days was to Bozeman, at $285 round-trip. The most popular route is Chicago Midway Airport (MDW) to Bozeman (BZN) and the cheapest round-trip airline ticket found on this route in the last 5 days was $285.

The cheapest month for flights from Illinois to Montana is July, when tickets cost $82 (return) on average. On the other hand, the most expensive months are March and June, when the average cost of round-trip tickets is $135 and $135 respectively.

To get a below average price on the flight from Illinois to Montana, you should book around 3 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

From Illinois, there are direct flights to Montana from 1 city. This city is Chicago and there are 159 direct flights each week.

There are around 23 direct flights from within Illinois to Montana every day. Most flights (61%) depart in the morning.

Each week there are around 159 direct flights from within Illinois to Montana. The most common day for departures is Sunday, with 17% of flights taking off on this day.

An average nonstop flight from Illinois to Montana takes 8h 40m, covering a distance of 1181 miles. The shortest route is Chicago Midway Airport (MDW) to Bozeman (BZN) with an average flight time of 3h 05m.

Each week, there are 15 medium-haul flights (3-6 hour flight duration) and 144 short-haul flights (up to 3 hour flight duration) to Montana. There aren't any long-haul flights (6-12 hour flight duration).

Based on KAYAK flight searches, the most popular destination is Bozeman (42% of total searches to Montana). The next most popular destinations are Kalispell (26%) and Missoula (17%). Searches for flights to Billings (8%), to Great Falls (3%) and to Helena (2%) are also popular.