Cheap flights from Ontario to Great Falls (ONT - GTF)

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How to find the cheapest flight from
Ontario (ONT) to Great Falls (GTF)

All the information you need to plan the best ONT to GTF flight in 2022: compare Ontario to Great Falls flight prices with the expected peak season, weather and rainfall in Great Falls.
What is the cheapest day to fly round-trip from Ontario to Great Falls?

Wednesday flights are found to be more expensive to fly from Ontario to Great Falls. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Great Falls.

What is the cheapest month to fly from Ontario to Great Falls?

The best pricing can be found in the month of May. Prices to Great Falls from Ontario average $319. You can even find prices in May for less than $319, as users have found deals to Great Falls from as low as $164. The month of December appears to be one of the more expensive times to travel to Great Falls from Ontario. Flying in the targeted month can save you up to 46%.

When is the cheapest time to fly from Ontario to Great Falls (ONT - GTF)?

It’s typically best to fly out from Ontario to Great Falls at noon. Doing so could potentially save you 59% on the flight price compared to flying in the evening, which is usually more expensive.

How far in advance should I book a flight from Ontario to Great Falls?

Find a great deal and save up to 80% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Great Falls within the next two weeks, with the cheapest ticket starting at $347.

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Ontario</span> to <span class="emphasized">Great Falls</span> flights.

Flight FAQs

From Ontario to Great Falls

What are the most popular airlines that fly from Ontario to Great Falls?

When booking a flight from Ontario to Great Falls, you may want to consider flying on Alaska Airlines, Delta or United Airlines as they are the most popular for this route.

COVID Restrictions

View COVID Travel Restrictions for Great Falls, MT

Do I need a COVID test to fly to Great Falls from Ontario?

Information is based on travel restrictions for travel to Great Falls within the United States

Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter Great Falls.

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Great Falls.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Great Falls.

Do I need a test to fly back to Ontario from Great Falls?

Returning to Ontario from Great Falls

COVID-19 testing requirements
Visitors from Great Falls must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Ontario.

Quarantine requirements
Visitors from Great Falls are not required to quarantine after entering Ontario.

Hide COVID Travel Restrictions for Great Falls, MT

Alternative routes for Ontario to Great Falls

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Great Falls

Things to know before you go - useful duration and weather info for your trip from Ontario to Great Falls.
Average temperature for May in Great Falls
66.2 °F
Avg rainfall for May in Great Falls
2.2 ″

Airports servicing Ontario

Airports servicing Great Falls

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