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GTF - ONT

$397 Find cheap flights from Great Falls to Ontario

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Great Falls to Ontario departing on 6/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/29
Sat 7/6

Search hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Great Falls to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Great Falls to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Great Falls to Ontario (GTF-ONT)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Great Falls to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:02 am - 11:59 pmGTF-ONT
17h 57m1 stop
8:20 pm - 11:59 pmONT-GTF
26h 39m1 stop
$397Alaska Airlines
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Thu, Jun 27 - Thu, Jul 4
4:11 pm - 11:59 pmGTF-ONT
8h 48m1 stop
6:00 am - 11:59 pmONT-GTF
16h 59m1 stop
$442Alaska Airlines
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Thu, Jul 4 - Sun, Jul 7
7:02 am - 9:05 amGTF-ONT
27h 03m1 stop
8:20 pm - 11:59 pmONT-GTF
26h 39m1 stop
$492Alaska Airlines
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Mon, Jul 1 - Mon, Jul 15
2:15 pm - 12:08 pmGTF-ONT
22h 53m2 stops
1:30 pm - 9:18 pmONT-GTF
6h 48m1 stop
$552United Airlines
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Thu, Jul 4 - Sun, Jul 7
7:00 am - 3:33 pmGTF-ONT
9h 33m1 stop
4:28 pm - 11:46 pmONT-GTF
6h 18m1 stop
$555Alaska Airlines
Find Deal
Fri, Sep 27 - Mon, Sep 30
12:30 pm - 10:29 pmGTF-ONT
10h 59m2 stops
5:00 pm - 10:37 pmONT-GTF
4h 37m1 stop
$573Delta
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Sat, Sep 28 - Mon, Sep 30
7:02 am - 7:25 pmGTF-ONT
13h 23m1 stop
7:00 am - 3:31 pmONT-GTF
7h 31m2 stops
$633Alaska Airlines
Find Deal
Thu, Jun 27 - Thu, Jul 4
7:00 am - 10:20 pmGTF-ONT
16h 20m1 stop
8:49 pm - 11:59 pmONT-GTF
26h 10m1 stop
$732Alaska Airlines
Find Deal
Sat, Sep 28 - Mon, Sep 30

Flights from Great Falls to Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights from Great Falls to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Great Falls to Ontario?

The average price of all flights from Great Falls to Ontario clicked on KAYAK for each day over the last 12 months.
For Great Falls to Ontario, Wednesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Ontario back to Great Falls, the best deals are generally found on Sunday, with Monday being the most expensive.

Good to know

Low season

October

High season

March

Cheapest flight

$397
Best time to beat the crowds with an average 41% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Great Falls to Ontario

When to book flights from Great Falls to Ontario

Are your dates flexible? Find out the best times to travel from Great Falls to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Great Falls to Ontario

  • What is the cheapest flight from Great Falls to Ontario?

    In the last 3 days, the lowest price for a flight from Great Falls to Ontario was $397 for a round-trip ticket.

  • Do I need a passport to fly between Great Falls and Ontario?

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

  • Which airports will I be using when flying 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.

  • Which aircraft models fly most regularly from Great Falls to Ontario?

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

  • Which airline alliances offer flights from Great Falls to Ontario?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Great Falls and Ontario, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Great Falls to 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.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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.

  • What is the Hacker Fare option on flights from Great Falls to Ontario?

    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.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Great Falls to Ontario?

    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.

See more FAQs

Top airline flying from Great Falls to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Great Falls to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Great Falls to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10457 reviews
8.2Boarding
7.9Comfort
8.6Crew
7.4Food
8.0Entertainment
Airline reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

8.0 ExcellentLiam, May 2024SLC - SJC
Read more about Delta reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Great Falls - Ontario Flights

Departure:

Great Falls (GTF)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Great Falls

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