Which airports can I use when flying from Great Falls to Ontario?

Flights from Great Falls to Ontario usually depart from Great Falls (GTF) and arrive at Ontario (ONT).

What cabin classes can I book on flights from Great Falls to Ontario?

Only Economy Class is available on flights from Great Falls to Ontario.

Which airports do connecting flights from Great Falls to Ontario pass through?

Connecting flights from Great Falls to Ontario most commonly pass through: • Salt Lake City (SLC) - 90% of one-stop connections • Denver Intl (DEN) - 10% of one-stop connections

Can I save money by using flexible dates for flights from Great Falls to Ontario?

Yes. Flexible dates can save you up to 44% on flights from Great Falls to Ontario. Wednesday is the cheapest departure day at $275 round-trip on average, while Sunday is the most expensive at $491, a difference of $216. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Ontario?

Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

How long is a flight from Great Falls to Ontario?

A nonstop flight from Great Falls to Ontario takes 00m, covering 982 miles.

Do I need a passport to fly from Great Falls to Ontario?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from Great Falls to Ontario changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $358 to $1,501. That means the highest observed fare was about 4x higher than the lowest one.

How are flight prices from Great Falls to Ontario looking right now?

One-way fares from Great Falls to Ontario are currently higher than usual. Average one-way flight prices are about $317, which is 27% above the typical average for this route.

How much time can I save by choosing a different layover airport from Great Falls to Ontario?

Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 5h 26m, compared with 6h 49m via Denver Intl (DEN).

What is the time difference between Great Falls and Ontario?

Ontario is 1 hour behind Great Falls (Pacific Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Ontario Airport (ONT)?

Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include: • Fox • Thrifty • Europcar • Dollar • Alamo

How much should I expect to pay for a Great Falls to Ontario flight?

Round-trip flights from Great Falls to Ontario range from $275 to $359, with an average of $322 over the past 12 months. Anything below $275 counts as a good deal.

How much is a round-trip flight from Great Falls to Ontario?

Round-trip flights from Great Falls to Ontario typically range from $275 to $359. The lowest price found in the past 5 days was $358, on Delta.

Which airline is the cheapest to fly from Great Falls to Ontario?

Delta ($358) and United Airlines ($408) are the cheapest airlines to fly round-trip from Great Falls to Ontario according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from Great Falls to Ontario?

Salt Lake City (SLC) is the most popular layover for the Great Falls to Ontario route. 90% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via SLC.

What is the cheapest layover airport when flying from Great Falls to Ontario?

Flights via Denver Intl (DEN) offer the most affordable fares, with an average round-trip price of $312. Based on KAYAK data over the past 3 months.

When flying from Great Falls to Ontario which airport offers the shortest layover?

Salt Lake City (SLC) had the shortest average connection time for Great Falls to Ontario layovers at 3h 43m over the past 3 months.

$179 CHEAP FLIGHTS from Great Falls to Ontario (GTF - ONT)

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$358

Typical prices: $275-$359

Delta

Tue 11/27Fri 11/30

GTF - ONT • 1 stop

Cheapest one-way

$179

Typical prices: $194-$311

Alaska Airlines

Fri 11/9

GTF - ONT • 1 stop

Nonstop flights

Not available

There are currently no direct flights between Great Falls and Ontario. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

February

Cheapest • 13% price drop

January

Most popular

Good to know

Top layover airports

Denver Intl (DEN)

Cheapest • Avg $312 (round-trip)

Salt Lake City (SLC)

Shortest trip • 5h 26m (one-way)

Insights

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Ontario!

Flight Deals

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

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Great Falls to Ontario

Fri, Nov 27 - Mon, Nov 30

6:19 pm - 10:16 pmGTF Great Falls-ONT Ontario

4h 57m1 stop Salt Lake City

6:00 am - 12:41 pmONT Ontario-GTF Great Falls

5h 41m1 stop Salt Lake City

$358Delta

Fri, Nov 27 - Mon, Nov 30

6:19 pm - 10:16 pmGTF Great Falls-ONT Ontario

4h 57m1 stop Salt Lake City

6:00 am - 12:41 pmONT Ontario-GTF Great Falls

5h 41m1 stop Salt Lake City

$378Delta

Sat, Nov 7 - Wed, Nov 11

6:30 am - 12:33 pmGTF Great Falls-ONT Ontario

7h 03m1 stop Denver Intl

1:29 pm - 9:38 pmONT Ontario-GTF Great Falls

7h 09m1 stop Denver Intl

$408United Airlines

Thu, Nov 19 - Thu, Nov 26

1:21 pm - 11:00 pmGTF Great Falls-ONT Ontario

10h 39m2 stops Salt Lake City Seattle/Tacoma Intl

1:15 pm - 7:40 pmONT Ontario-GTF Great Falls

5h 25m1 stop Salt Lake City

$409Delta

Sat, Nov 7 - Wed, Nov 11

6:30 am - 12:33 pmGTF Great Falls-ONT Ontario

7h 03m1 stop Denver Intl

9:25 am - 9:38 pmONT Ontario-GTF Great Falls

11h 13m2 stops San Francisco Denver Intl

$414United Airlines

Fri, Nov 27 - Mon, Nov 30

6:19 pm - 10:16 pmGTF Great Falls-ONT Ontario

4h 57m1 stop Salt Lake City

5:04 pm - 10:30 pmONT Ontario-GTF Great Falls

4h 26m1 stop Salt Lake City

$423Delta

Wed, Nov 4 - Thu, Nov 26

2:45 pm - 8:51 pmGTF Great Falls-ONT Ontario

7h 06m1 stop Denver Intl

5:00 am - 1:49 pmONT Ontario-GTF Great Falls

7h 49m1 stop Denver Intl

$428United Airlines

Thu, Nov 19 - Thu, Nov 26

6:19 pm - 11:49 pmGTF Great Falls-ONT Ontario

6h 30m1 stop Salt Lake City

6:00 am - 12:41 pmONT Ontario-GTF Great Falls

5h 41m1 stop Salt Lake City

$433Delta

Wed, Nov 4 - Sun, Nov 8

2:45 pm - 8:51 pmGTF Great Falls-ONT Ontario

7h 06m1 stop Denver Intl

5:00 am - 1:49 pmONT Ontario-GTF Great Falls

7h 49m1 stop Denver Intl

$453United Airlines

Wed, Nov 4 - Thu, Nov 26

1:18 pm - 10:43 pmGTF Great Falls-ONT Ontario

10h 25m2 stops Salt Lake City Seattle/Tacoma Intl

6:00 am - 12:41 pmONT Ontario-GTF Great Falls

5h 41m1 stop Salt Lake City

$454Delta

Booking Insights

Price, demand and travel trends for Great Falls to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Great Falls to Ontario? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Great Falls to Ontario departing in november.

Find deals

Low season	September
High season	January
Cheapest flight	$179

Beat the crowds with an average 90% drop in travelers.

The most popular month to fly with an average 10% increase in travelers.

One-way 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.

What cabin classes can I book on flights from Great Falls to Ontario?
Only Economy Class is available on flights from Great Falls to Ontario.
How long is a flight from Great Falls to Ontario?
A nonstop flight from Great Falls to Ontario takes 00m, covering 982 miles.
Do I need a passport to fly from Great Falls to Ontario?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
How much should I expect to pay for a Great Falls to Ontario flight?
Round-trip flights from Great Falls to Ontario range from $275 to $359, with an average of $322 over the past 12 months. Anything below $275 counts as a good deal.
Have flight prices from Great Falls to Ontario changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $358 to $1,501. That means the highest observed fare was about 4x higher than the lowest one.
How are flight prices from Great Falls to Ontario looking right now?
One-way fares from Great Falls to Ontario are currently higher than usual. Average one-way flight prices are about $317, which is 27% above the typical average for this route.
What car rental options are available at Ontario Airport (ONT)?
Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

• Fox
• Thrifty
• Europcar
• Dollar
• Alamo
Which airports can I use when flying from Great Falls to Ontario?
Flights from Great Falls to Ontario usually depart from Great Falls (GTF) and arrive at Ontario (ONT).
Which airports do connecting flights from Great Falls to Ontario pass through?
Connecting flights from Great Falls to Ontario most commonly pass through:

• Salt Lake City (SLC) - 90% of one-stop connections
• Denver Intl (DEN) - 10% of one-stop connections
Can I save money by using flexible dates for flights from Great Falls to Ontario?
Yes. Flexible dates can save you up to 44% on flights from Great Falls to Ontario. Wednesday is the cheapest departure day at $275 round-trip on average, while Sunday is the most expensive at $491, a difference of $216.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How much time can I save by choosing a different layover airport from Great Falls to Ontario?
Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 5h 26m, compared with 6h 49m via Denver Intl (DEN).
What is the time difference between Great Falls and Ontario?
Ontario is 1 hour behind Great Falls (Pacific Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Ontario?
Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

If your dates are flexible, aim for a Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average $275, about $216 less than Sunday fares (44% savings) based on the last 12 months.
If you can choose when to travel, plan your Great Falls to Ontario trip for February. Fares historically average $280 round-trip in that month - typically $541 less than the most expensive month, which is January (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

• Ontario Airport Inn
• Azure Hotel & Suites, Trademark Collection by Wyndham
• Holiday Inn Ontario Airport By IHG

More options for your flight from Great Falls to Ontario

Add a hotel or car rental

Airports

Cabin class

Direct Flights

Origins

Other destinations

Return flight

Complete your trip to Ontario with a hotel stay or car rental

Car rentals in Ontario

Hotels in Ontario

Vacations in Ontario

GTF - ONT

$179 Find Cheap Flights from Great Falls to Ontario - Compare and Save

Everything you should know

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

Recent round-trip flight deals from Great Falls to Ontario

Recent one-way flight deals from Great Falls to Ontario

Price, demand and travel trends for Great Falls to Ontario flights

How much is a round-trip flight from Great Falls to Ontario?

Which airline is the cheapest to fly from Great Falls to Ontario?

What’s the most popular layover airport when flying from Great Falls to Ontario?

What is the cheapest layover airport when flying from Great Falls to Ontario?

When flying from Great Falls to Ontario which airport offers the shortest layover?

Key details for Great Falls to Ontario flights

Low season

High season

Cheapest flight

When to book flights from Great Falls to Ontario

Your Great Falls to Ontario flight questions, answered

Your guide to booking Great Falls to Ontario flights

More options for your flight from Great Falls to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Great Falls to Ontario

Find direct flights to and from Great Falls and Ontario

Flights from domestic origins to Ontario

Flights to other popular destinations

Find deals for your return flight