In terms of precipitation, rainfall in Hilo ranges from 7.4 - 15.5 inches per month. November is typically the wettest month, when rainfall can reach 15.5 in. June is typically the driest time to visit Hilo when rainfall is around 7.4 in.

If weather is an important factor for your trip to Hilo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 71.6 F).

What is the cheapest time of day to fly from GTF to ITO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Great Falls to Hilo as you normally would.

Most accurate provider : When it comes to deals on Great Falls-Hilo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Great Falls-Hilo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-Hilo flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Great Falls-Hilo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Great Falls-Hilo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Great Falls to Hilo that include hotel bookings?

Yes. In addition to deals on Great Falls to Hilo flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Great Falls to Hilo?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Great Falls to Hilo.

Can I find deals for business class flights from Great Falls to Hilo?

Yes. Cheapflights offers flight deals from Great Falls to Hilo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$872+ Cheap Flights from Great Falls to Hilo

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Cheap flight deals from Great Falls to Hilo

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Cheapest flights from Great Falls to Hilo
Explore the most affordable flight options available from Great Falls to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.

Tue 11/104:57 pm

GTF

ITO

2 stops27h 30m

Multiple Airlines

Wed 11/118:45 pm

ITO

GTF

2 stops16h 32m

Multiple Airlines

Deal found 7/21

$872

Thu 10/156:15 am

GTF

ITO

2 stops16h 02m

United Airlines

Sat 10/2412:48 pm

ITO

GTF

2 stops20h 49m

United Airlines

Deal found 7/20

$1,110

Find flight deals from Great Falls to Hilo

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$872 (Alaska Airlines)

Provider with most accurate pricing for Great Falls-Hilo Intl flight deals.

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Provider most trusted by Cheapflights users for Great Falls-Hilo Intl flights.

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From Great Falls to Hilo Intl

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Route

Depart

Return

Price

Cheapest round-trip

Great FallsHilo

GTF - ITO

GTFITO

Great Falls

Tue 11/10

4:57 pm-5:27 pm

2 stops27h 30m

Hilo Intl

Wed 11/11

8:45 pm-4:17 pm

2 stops16h 32m

$872

Quickest round-trip

Great FallsHilo

GTF - ITO

GTFITO

Great Falls

Thu 10/15

6:15 am-6:17 pm

2 stops16h 02m

Hilo Intl

Sat 10/24

12:48 pm-1:37 pm

2 stops20h 49m

$1,110

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/18

Sorted by cheapest first

Most accurate provider: When it comes to deals on Great Falls-Hilo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Great Falls-Hilo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-Hilo flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Great Falls-Hilo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Great Falls-Hilo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Great Falls to Hilo

Have a flexible travel schedule? Discover the best time to fly to Hilo from Great Falls with our price prediction graph.

GTF-ITO

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Can I find deals for flights from Great Falls to Hilo that include hotel bookings?
Yes. In addition to deals on Great Falls to Hilo flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Great Falls to Hilo?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Great Falls to Hilo.
Can I find deals for business class flights from Great Falls to Hilo?
Yes. Cheapflights offers flight deals from Great Falls to Hilo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$872+ Cheap flights from Great Falls to Hilo (GTF - ITO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Great Falls to Hilo with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Great Falls to Hilo

Cheapest flights from Great Falls to HiloExplore the most affordable flight options available from Great Falls to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.

Explore the most affordable flight options available from Great Falls to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.

Best flights from Great Falls to HiloDiscover carefully curated flight deals from Great Falls to Hilo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 23, 2026.

Discover carefully curated flight deals from Great Falls to Hilo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 23, 2026.

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Use the filters below to find and compare flights from Great Falls to Hilo that are best for you.

Best time to book a flight from Great Falls to Hilo

Have a flexible travel schedule? Discover the best time to fly to Hilo from Great Falls with our price prediction graph.

Related info for your journey

Can I find deals for flights from Great Falls to Hilo that include hotel bookings?

How can I find direct flights from Great Falls to Hilo?

Can I find deals for business class flights from Great Falls to Hilo?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Great Falls to Hilo

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Complete your trip

Complete your trip to Hilo by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Great Falls to Hilo by cabin class

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Other flights to Hilo

Explore flights to Hilo departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 23, 2026.

Great Falls and Hilo flights

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Cheapest flights from Great Falls to Hilo
Explore the most affordable flight options available from Great Falls to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.

Best flights from Great Falls to Hilo
Discover carefully curated flight deals from Great Falls to Hilo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 23, 2026.