Cheap Flights from Great Falls (GTF) to Iliamna (ILI)

Popular airlines from Great Falls, MT (GTF-Great Falls Intl.) to Iliamna, AK (ILI)

Frequently asked questions

How much does a flight from Great Falls Intl. Airport (GTF) to Iliamna Airport (ILI) cost?
Grab a cheap one-way flight or cheap return flight from Great Falls Intl. Airport (GTF) to Iliamna Airport (ILI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Great Falls Intl. Airport (GTF) to Iliamna Airport (ILI)?
Traveling in is a good way to save, as it's the cheapest month for flights between GTF and ILI. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Great Falls Intl. Airport (GTF) to Iliamna Airport (ILI)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from GTF to ILI. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Great Falls Intl. Airport (GTF) to Iliamna Airport (ILI)?
There aren't any daily nonstop flights departing from Great Falls Intl. Airport (GTF) to Iliamna Airport (ILI). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from GTF to ILI?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Great Falls Intl. Airport (GTF) to Iliamna Airport (ILI)?
To reach Iliamna Airport (ILI) without delays, pick a flight that leaves Great Falls Intl. Airport (GTF) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Great Falls Intl. Airport (GTF) to Iliamna Airport (ILI) last-minute?
Last-minute fares from GTF to ILI are usually more expensive. For the lowest rates, start searching for flights well ahead of time. That said, if you're flexible with your travel dates, it's possible to score a cheap ticket just before your departure.
Can I cancel or change the date of my flight from Great Falls Intl. Airport (GTF) to Iliamna Airport (ILI)?
Typically, it's possible to reschedule or cancel your GTF to ILI flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Great Falls Intl.
Destination airport
Iliamna
Distance
1930 mi

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Great Falls to Iliamna Flights

The cheapest times to fly from Great Falls to Iliamna

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Great Falls to Iliamna are during the month of . You can find some of the cheapest flights from Great Falls to Iliamna with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Great Falls to Iliamna

Sunday is one of the best days to book for cheap flights from Great Falls to Iliamna: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Great Falls to Iliamna

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Great Falls to Iliamna in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Great Falls to Iliamna flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Great Falls to Iliamna airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Great Falls to Iliamna Flights

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*Available to One Key members.