$252 Find Cheap Flights from Great Falls to Ontario - Compare and Save

In the last 5 days, the lowest price for a flight from Great Falls to Ontario was $252 for a one-way ticket and $412 for a round-trip.

A passport is not required to fly from Great Falls to Ontario.

Great Falls and Ontario are both served by 1 main airport. You will leave Great Falls from Great Falls and will be arriving at Ontario.

We unfortunately don’t have that data for this specific route.

SkyTeam is the only airline alliance operating flights between Great Falls and Ontario.

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 Great Falls to Ontario.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Great Falls 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 to Ontario with an airline and back to Great Falls with another airline. Booking your flights between Great Falls and ONT can sometimes prove cheaper using this method.

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