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$144 Cheap Flights from Ontario Intl. Airport (ONT) to Kalispell (FCA)

View $144 flight on Sat, Sep 26, 2026Opens in a new window

Popular airlines from Ontario Intl. Airport (ONT) to Glacier Park Intl. Airport (FCA)

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Cheap Flights from Ontario Intl. Airport to Kalispell (ONT-FCA)

Prices were available within the past 7 days and start at $144 for one-way flights and $284 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bargain Flight
Sat, Oct 10 - Thu, Oct 15
ONT
Ontario
FCA
Kalispell
$284 Roundtrip, found 6 hours ago
$284
Roundtrip
found 6 hours ago
Select Bargain Flight flight, departing Sat, Oct 10 from Ontario to Kalispell, returning Thu, Oct 15, priced at $284 found 6 hours ago
United
Tue, Oct 13 - Tue, Oct 20
ONT
Ontario
FCA
Kalispell
$287 Roundtrip, found 16 hours ago
$287
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Oct 13 from Ontario to Kalispell, returning Tue, Oct 20, priced at $287 found 16 hours ago
Delta
Mon, Sep 28 - Fri, Oct 2
ONT
Ontario
FCA
Kalispell
$287 Roundtrip, found 1 hour ago
$287
Roundtrip
found 1 hour ago
Select Delta flight, departing Mon, Sep 28 from Ontario to Kalispell, returning Fri, Oct 2, priced at $287 found 1 hour ago
American Airlines
Sat, Sep 26 - Tue, Sep 29
ONT
Ontario
FCA
Kalispell
$287 Roundtrip, found 16 hours ago
$287
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Sat, Sep 26 from Ontario to Kalispell, returning Tue, Sep 29, priced at $287 found 16 hours ago
Delta
Mon, Sep 28 - Fri, Oct 2
ONT
Ontario
FCA
Kalispell
$292 Roundtrip, found 1 hour ago
$292
Roundtrip
found 1 hour ago
Select Delta flight, departing Mon, Sep 28 from Ontario to Kalispell, returning Fri, Oct 2, priced at $292 found 1 hour ago
Delta
Mon, Aug 24 - Fri, Sep 4
ONT
Ontario
FCA
Kalispell
$298 Roundtrip, found 3 hours ago
$298
Roundtrip
found 3 hours ago
Select Delta flight, departing Mon, Aug 24 from Ontario to Kalispell, returning Fri, Sep 4, priced at $298 found 3 hours ago
Alaska Airlines
Mon, Jun 7 - Fri, Jun 11
ONT
Ontario
FCA
Kalispell
$303 Roundtrip, found 16 hours ago
$303
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Mon, Jun 7 from Ontario to Kalispell, returning Fri, Jun 11, priced at $303 found 16 hours ago
United
Tue, Sep 15 - Wed, Sep 16
ONT
Ontario
FCA
Kalispell
$304 Roundtrip, found 16 hours ago
$304
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Sep 15 from Ontario to Kalispell, returning Wed, Sep 16, priced at $304 found 16 hours ago
United
Sun, Aug 23 - Wed, Aug 26
ONT
Ontario
FCA
Kalispell
$308 Roundtrip, found 2 days ago
$308
Roundtrip
found 2 days ago
Select United flight, departing Sun, Aug 23 from Ontario to Kalispell, returning Wed, Aug 26, priced at $308 found 2 days ago
Alaska Airlines
Mon, Sep 28 - Fri, Oct 2
ONT
Ontario
FCA
Kalispell
$314 Roundtrip, found 1 hour ago
$314
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Mon, Sep 28 from Ontario to Kalispell, returning Fri, Oct 2, priced at $314 found 1 hour ago

Alternative airports near Kalispell

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Glacier Park Intl. FCA. Cheapest and Closest option available. Average driving time to city center is 13 minutes. Flights from $373
FCA
Glacier Park Intl.
CheapestClosest
Average driving time to city center13 min
Flights from $373

Find the cheapest month to fly from Ontario (ONT) to Kalispell (FCA)

February is typically the cheapest month to fly

From $210 - $624 per traveler.

What you need to know for your flight from Ontario Intl. Airport to Glacier Park Intl.

Ontario (ONT) to Kalispell (FCA) at a glance

Discover a range of airlines offering flights from Ontario (ONT) to Kalispell (FCA) on this domestic short-haul route. Compare airfares to Kalispell to find the best itinerary that aligns with your budget and schedule as you plan your visit to explore Kalispell's renowned attractions and neighborhoods. Check out the essential information for flights from Los Angeles - Ontario International Airport (ONT) to Glacier Park International Airport (FCA).

  • Fastest flight duration: around 3h 45m in-flight, plus roughly 1h 15m layover with one stop
  • Route distance: roughly 1,000 miles (1,610 km)
  • Flights per week: around 9 departures on average
  • Typical fares (one-way): economy tickets often range from $115–$360, depending on seasonality and how far ahead you book

Flights from Los Angeles - Ontario International Airport (ONT) to Glacier Park International Airport (FCA)

Based on the latest traveler bookings, here are the top airlines preferred for flights from Ontario to Kalispell, primarily offering one-stop services. Popular layover options include Salt Lake City International Airport (SLC) with a roughly 45-minute layover, Seattle-Tacoma International Airport (SEA) and Portland International Airport (PDX), both with approximately 1 hour and 15 minutes layover time. These connections provide travelers the flexibility to compare prices, total travel duration, and cabin class to secure the best travel itinerary.

  • Delta: This full-service airline provides one-stop options, with one-way ticket prices generally between $115 and $395. It holds a share of about 44% of departures on this route, featuring an in-flight duration of 3h 45m and an overall travel time of approximately 5h 15m, including layover.
  • Alaska Airlines: Another full-service choice, Alaska Airlines offers one-stop services with one-way fares that usually range from $115 to $485. It accounts for around 33% of departures for this route, with a flight time of 3h 45m and a total travel time of about 5h 15m, factoring in layovers.
  • United: As a full-service carrier, United provides one-stop flight options, with one-way fares typically between $130 and $410. It covers roughly 20% of departures on this route, with an in-flight time of 3h 45m and a total journey time of around 5h 15m, including layover.
  • American Airlines: Offering one-stop service, this full-service airline has one-way fares usually ranging from $170 to $380. With just 2% of departures on this route, the flight duration is 3h 45m, and the overall travel time is roughly 5h 15m, including any layover.

Travelers flying from Ontario to Kalispell have the option to upgrade their experience. Top airlines include Delta, which offers first-class service; Alaska Airlines, providing both first-class and business class options; and United, also featuring first-class service.

Best time to fly from Ontario (ONT) to Kalispell (FCA)

The most popular months for travelers flying from Ontario to Kalispell are April, August, and September, when peak temperatures in Kalispell reach up to 65.8°F in August. If you prefer quieter travel, consider November, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 28.4°F. For better deals, January usually offers the lowest average one-way fare around $167. Flight availability peaks in July, with approximately 13 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: January usually offers good deals with average one-way fare around $167, roughly 26% cheaper than the yearly average.
  • Another budget-friendly time to fly: November typically offers an average one-way fare of around $179.
  • Most flight options: July has the highest number of flights from Ontario to Kalispell, with approximately 13 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January19.9°F (-6.7°C)Average10$167
February20.3°F (-6.5°C)Average8$251
March30.2°F (-1.0°C)Moderately Low10$231
April38.5°F (3.6°C)Moderately High9$240
May49.8°F (9.9°C)Average9$203
June57.7°F (14.3°C)Average9$263
July66.9°F (19.4°C)Average13$297
August65.8°F (18.8°C)Moderately High10$219
September55.8°F (13.2°C)Moderately High10$246
October40.8°F (4.9°C)Average9$203
November28.4°F (-2.0°C)Moderately Low8$179
December20.3°F (-6.5°C)Moderately Low8$238

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Ontario (ONT) to Kalispell (FCA)

  • Orange County to Kalispell (SNA-FCA): John Wayne Airport (SNA) is located approximately 31 miles from Los Angeles - Ontario International Airport (ONT). One-way economy prices for this journey generally fall between $120 and $470, influenced by the time of year and how early you make your booking. This route is primarily offered as a one-stop flight, with common layover locations being Denver International Airport (DEN) and Seattle - Tacoma International Airport (SEA). Major airlines operating on this route include Alaska Airlines and United. Additionally, options for business and first-class service are available.

How to find the best prices for flights from Ontario (ONT) to Kalispell (FCA)

Getting some of the best deals on flights from Ontario to Kalispell is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2 to 8 weeks in advance, which aligns with when most travelers make their reservations. Morning departures between 5 AM and 12 PM often provide lower prices and are popular among flyers. Additionally, flying on Wednesday tends to be less expensive, although Thursday remains the busiest travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Kalispell hotel and flight deals.
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Glacier Park International Airport from Los Angeles - Ontario International Airport

Kalispell welcomes travelers from Ontario with a range of transport options based on price, convenience, and proximity. Here's how to reach Kalispell efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Kalispell, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from Glacier Park International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Glacier Park International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Glacier Park International Airport, Whitefish Seaport, a seaport, is about 8.1 miles away, while Whitefish Depot, a train station, is approximately 8.3 miles from the airport.

Frequently asked questions

How much does a flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) cost?
You can find cheap one-way flights from $144 and cheap return flights from $284 Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) with Expedia. One-way flights typically cost between $164 and $1026, and return flights often range between $324 and $1178. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
The cheapest month to fly from ONT to FCA is October when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
Enter ONT to FCA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
United is one of the cheapest airlines offering connecting flights from Ontario, CA (ONT) to Kalispell, MT (FCA), with round-trip tickets starting from around $224.37 with a layover in San Francisco Intl. (SFO). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
To find a cheap flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
The earliest flight from Los Angeles - Ontario International Airport (ONT) to Glacier Park International Airport (FCA) usually departs at around 12:55 AM. Operated by American Airlines, this early flight gives you a head start on your adventure in Kalispell. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
The most popular departure times for flights from Ontario, CA (ONT) to Kalispell, MT (FCA) are in the early morning, from 6am to 9am. About 52% of passengers prefer this time window. Many major carriers, including Delta Air Lines and Alaska Airlines, offer flights during this window. This timing works well because it allows you to start your day early and make the most of your time in Kalispell.
How long does it take to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
Flights from ONT to FCA with one stop typically take around 7 hours 30 minutes, covering approximately 999 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
First class is available on flights from ONT to FCA. First class cabins are available on:

  • Delta Air Lines
  • American Airlines
  • United Airlines

How do I earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) flight with Expedia?
It's easy to earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Kalispell from Los Angeles - Ontario Intl. (ONT)?
From Los Angeles - Ontario Intl. (ONT), you can fly into Glacier Park Intl. (FCA) to reach Kalispell. Some flights may connect through major hubs like Portland Intl. (PDX), San Francisco Intl. (SFO), Seattle - Tacoma Intl. (SEA) before reaching Kalispell. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) at the last minute?
Typically, booking a last minute flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) flight and hotel package?
Securing a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.)?
If you booked your Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Kalispell, MT (FCA-Glacier Park Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Ontario Intl. Airport
Destination airport
Glacier Park Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$283
Distance
999 mi

Book with confidence

Ontario Intl. Airport to Kalispell Flights

The cheapest times to fly from Ontario Intl. Airport to Kalispell

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ontario Intl. Airport to Kalispell are during the month of October. You can find some of the cheapest flights from Ontario Intl. Airport to Kalispell with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario Intl. Airport to Kalispell

Sunday is one of the best days to book for cheap flights from Ontario Intl. Airport to Kalispell: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ontario Intl. Airport to Kalispell

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ontario Intl. Airport to Kalispell in 2026. You can also book with separate airlines for your outbound and return journeys, from $144 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ontario Intl. Airport to Kalispell flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ontario Intl. Airport to Kalispell airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Ontario Intl. Airport to Kalispell Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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