What are the cheapest airlines flying from Kalispell to Ontario round-trip?

Flying on Alaska Airlines is currently your cheapest option to Ontario, with prices starting at $266. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $272 and $519, respectively. Users have found that Alaska Airlines is 42% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Kalispell to Ontario one-way?

The cheapest airlines for a one-way flight from Kalispell to Ontario are Hawaiian Airlines ($125), Delta ($129), and Alaska Airlines ($138).

What is the cheapest day to fly from Kalispell to Ontario?

Travelers seeking maximum savings on their Kalispell to Ontario flight should consider departing on Sunday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Consider Alaska Airlines, Delta or United Airlines when booking your flight. These represent the most popular airlines when flying from Kalispell to Ontario.

What is the cheapest day to fly round-trip from Kalispell to Ontario?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 59% on your flight compared to booking on days when demand is much higher.

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

Find a great deal and save up to 462% by booking at least 43 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 Kalispell to Ontario within the next two weeks, with the cheapest ticket starting at $181.

What is the cheapest month to fly from Kalispell to Ontario?

Due to multiple factors, expect to potentially pay more when booking in February. For low rates, September can be a great choice for travel to Ontario. Flights to Ontario from Kalispell in September are about $288 on average during September, but can be found for as low as $96.

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

Most trusted provider : When it comes to deals on Kalispell-Ontario 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 Kalispell-Ontario 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 Kalispell to Ontario that include hotel bookings?

Yes. In addition to deals on Kalispell to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Kalispell to Ontario?

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

Can I find deals for business class flights from Kalispell to Ontario?

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

$125+ Save on Flights from Kalispell to Ontario

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Cheap flight deals from Kalispell to Ontario

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$266 (Alaska Airlines)
One-way from	$125 (Trip.com)
Popular in	August
Cheapest in	January
Average price	$472

Provider with most accurate pricing for Kalispell Glacier Park-Ontario flight deals.

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Provider most trusted by Cheapflights users for Kalispell Glacier Park-Ontario flights.

Search Deals

From Kalispell Glacier Park to Ontario

Search Deals

One-way flight from Kalispell Glacier Park to Ontario

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($88 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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Find flight deals from Kalispell to Ontario

Cheapest flights from Kalispell to Ontario
Explore the most affordable flight options available from Kalispell to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 8, 2025.

Tue 4/156:14 pmFCA - ONT

1 stop6h 45mAlaska Airlines

Fri 4/186:55 amONT - FCA

1 stop9h 39mAlaska Airlines

Deal found 3/6

$266

Tue 4/155:55 pmFCA - ONT

1 stop6h 46mDelta

Fri 4/182:35 pmONT - FCA

2 stops8h 47mDelta

Deal found 3/6

$272

Thu 10/236:40 amFCA - ONT

1 stop4h 59mHawaiian Airlines

Thu 10/234:05 pmONT - FCA

1 stop6h 54mHawaiian Airlines

Deal found 3/6

$408

Thu 5/156:05 amFCA - ONT

1 stop7h 33mUnited Airlines

Sun 5/185:05 amONT - FCA

1 stop7h 26mUnited Airlines

Deal found 3/7

$519

Thu 7/243:27 pmFCA - ONT

1 stop7h 44mAmerican Airlines

Mon 7/2812:59 amONT - FCA

1 stop8h 55mAmerican Airlines

Deal found 3/6

$551

Mon 3/106:05 amFCA - ONT

1 stop7h 39mMultiple Airlines

Wed 3/127:00 amONT - FCA

2 stops7h 04mMultiple Airlines

Deal found 3/7

$1,672

Best flights from Kalispell to Ontario
Discover carefully curated flight deals from Kalispell to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 8, 2025.

Tue 4/156:14 pmFCA - ONT

1 stop6h 45mAlaska Airlines

Fri 4/186:55 amONT - FCA

1 stop9h 39mAlaska Airlines

Deal found 3/6

$266

Tue 4/155:55 pmFCA - ONT

1 stop6h 46mDelta

Fri 4/182:35 pmONT - FCA

2 stops8h 47mDelta

Deal found 3/6

$272

Thu 5/156:05 amFCA - ONT

1 stop7h 33mUnited Airlines

Sun 5/185:05 amONT - FCA

1 stop7h 26mUnited Airlines

Deal found 3/7

$519

Thu 7/243:27 pmFCA - ONT

1 stop7h 44mAmerican Airlines

Mon 7/2812:59 amONT - FCA

1 stop8h 55mAmerican Airlines

Deal found 3/6

$551

Last-minute flights from Kalispell to Ontario
Discover last-minute flight deals from Kalispell to Ontario. Data last updated March 8, 2025 and is based on user searches.

Mon 3/106:59 pmFCA - ONT

1 stop5h 59mHawaiian Airlines

Wed 3/126:00 amONT - FCA

1 stop5h 13mHawaiian Airlines

Deal found 3/7

$1,350

Mon 3/106:05 amFCA - ONT

1 stop7h 39mMultiple Airlines

Wed 3/127:00 amONT - FCA

2 stops7h 04mMultiple Airlines

Deal found 3/7

$1,672

Thu 3/1312:53 pmFCA - ONT

1 stop6h 26mAlaska Airlines

Thu 3/2010:18 amONT - FCA

1 stop6h 16mAlaska Airlines

Deal found 3/6

$399

Fri 3/145:55 pmFCA - ONT

1 stop7h 01mDelta

Mon 3/176:00 amONT - FCA

1 stop4h 40mDelta

Deal found 3/6

$451

Fri 3/142:35 pmFCA - ONT

1 stop7h 22mUnited Airlines

Mon 3/171:40 pmONT - FCA

1 stop7h 04mUnited Airlines

Deal found 3/6

$536

Tue 4/156:14 pmFCA - ONT

1 stop6h 45mAlaska Airlines

Fri 4/186:55 amONT - FCA

1 stop9h 39mAlaska Airlines

Deal found 3/6

$266

Tue 4/155:55 pmFCA - ONT

1 stop6h 46mDelta

Fri 4/182:35 pmONT - FCA

2 stops8h 47mDelta

Deal found 3/6

$272

One-way flights from Kalispell to Ontario
Search for one-way flight options from Kalispell to Ontario. Find affordable one-way fares based on user searches. Data last updated March 8, 2025.

Wed 4/166:14 pmFCA - ONT

1 stop6h 45mHawaiian Airlines

Deal found 3/7

$125

Tue 4/225:55 pmFCA - ONT

1 stop6h 46mDelta

Deal found 3/7

$129

Thu 4/246:40 pmFCA - ONT

1 stop6h 19mAlaska Airlines

Deal found 3/7

$138

Sat 8/27:45 amFCA - ONT

1 stop5h 37mUnited Airlines

Deal found 3/6

$205

Find flights from Kalispell to Ontario within your budget

Fly from

Fly to

Route

Depart

Return

Price

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Tue 4/15

6:14 pm-11:59 pm

1 stop6h 45m

Ontario

Fri 4/18

6:55 am-5:34 pm

1 stop9h 39m

$266

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Tue 4/15

5:55 pm-11:41 pm

1 stop6h 46m

Ontario

Fri 4/18

2:35 pm-12:22 am

2 stops8h 47m

$272

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Thu 5/15

6:05 am-12:38 pm

1 stop7h 33m

Ontario

Sun 5/18

5:05 am-1:31 pm

1 stop7h 26m

$519

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Thu 7/24

3:27 pm-10:11 pm

1 stop7h 44m

Ontario

Mon 7/28

12:59 am-10:54 am

1 stop8h 55m

$551

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Wed 4/16

6:14 pm-11:59 pm

1 stop6h 45m

$125

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Tue 4/22

5:55 pm-11:41 pm

1 stop6h 46m

$129

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Thu 4/24

6:40 pm-11:59 pm

1 stop6h 19m

$138

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Sat 8/2

7:45 am-12:22 pm

1 stop5h 37m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Compare providers for flights from Kalispell to Ontario

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kalispell to Ontario in March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

Have a flexible travel schedule? Discover the best time to fly to Ontario from Kalispell with our price prediction graph.

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.

Travel insights for flights from Kalispell to Ontario

Get recent, data-driven insights about flights from Kalispell to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Kalispell to Ontario?

Currently, August is the cheapest month in which you can book a flight from Kalispell to Ontario (average of $246). Flying from Kalispell to Ontario in March is currently the most expensive (average of $313). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from FCA to ONT?

One of the essential ways to save on airfare from Kalispell to Ontario is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 23% on airfare.

Rainfall in Ontario by month

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

See what other customers who have flown with Alaska Airlines, Delta and Hawaiian Airlines from Kalispell to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,716 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Alaska Airlines

8.0

Very good

9,716 reviews

Alaska Airlines

8.0

Very good

9,716 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Delta

8.0

Very good

8,024 reviews

Alaska Airlines

8.0

Very good

9,716 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Hawaiian Airlines

7.9

Good

2,316 reviews

Alaska Airlines

8.0

Very good

9,716 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

United Airlines

7.4

Good

8,649 reviews

Alaska Airlines

8.0

Very good

9,716 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,716 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

What are the cheapest airlines flying from Kalispell to Ontario round-trip?
Flying on Alaska Airlines is currently your cheapest option to Ontario, with prices starting at $266. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $272 and $519, respectively. Users have found that Alaska Airlines is 42% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Kalispell to Ontario one-way?
The cheapest airlines for a one-way flight from Kalispell to Ontario are Hawaiian Airlines ($125), Delta ($129), and Alaska Airlines ($138).
Can I find deals for flights from Kalispell to Ontario that include hotel bookings?
Yes. In addition to deals on Kalispell to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Kalispell to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kalispell to Ontario.
Can I find deals for business class flights from Kalispell to Ontario?
Yes. Cheapflights offers flight deals from Kalispell to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Kalispell to Ontario?
Currently, August is the cheapest month in which you can book a flight from Kalispell to Ontario (average of $246). Flying from Kalispell to Ontario in March is currently the most expensive (average of $313). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Other flights to Ontario

Top 3 airlines flying from Kalispell to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$236	Average$455	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$253	Average$479	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$296	Average$528	FlexibilityNo cancel fee	On-time69%

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$125+ Cheap flights from Kalispell to Ontario (FCA - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kalispell to Ontario with Cheapflights

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Cheap flight deals from Kalispell to Ontario

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Kalispell to Ontario

Cheapest flights from Kalispell to OntarioExplore the most affordable flight options available from Kalispell to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 8, 2025.

Explore the most affordable flight options available from Kalispell to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 8, 2025.

Find flights from Kalispell to Ontario within your budget

Compare providers for flights from Kalispell to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kalispell to Ontario in March.

Best time to book a flight from Kalispell to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Kalispell with our price prediction graph.

Travel insights for flights from Kalispell to Ontario

Get recent, data-driven insights about flights from Kalispell to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Kalispell to Ontario?

What is the cheapest time of day to fly from FCA to ONT?

Find hourly flight availability from Kalispell to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 8, 2025.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

Reviews of airlines servicing Ontario

See what other customers who have flown with Alaska Airlines, Delta and Hawaiian Airlines from Kalispell to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Kalispell to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Kalispell to Ontario round-trip?

What are the cheapest airlines to fly from Kalispell to Ontario one-way?

Can I find deals for flights from Kalispell to Ontario that include hotel bookings?

How can I find direct flights from Kalispell to Ontario?

Can I find deals for business class flights from Kalispell to Ontario?

What is the cheapest month to book a flight from Kalispell to Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kalispell to Ontario

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

Top 3 airlines flying from Kalispell to Ontario

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Cheapest flights from Kalispell to Ontario
Explore the most affordable flight options available from Kalispell to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 8, 2025.