FCA - ONT

$160 Find Cheap Flights from Kalispell to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$174
Typical prices: $326-$444
Multiple Airlines
Fri 11/16Sun 11/18
FCA - ONT • 1 stop
Cheapest one-way
$160
Typical prices: $165-$290
Multiple Airlines
Sat 11/24
FCA - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Kalispell and Ontario. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 26% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Portland (PDX)
Cheapest • Avg $192 (round-trip)
San Francisco (SFO)
Shortest trip • 4h 59m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Kalispell to Ontario (FCA-ONT)

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

Recent round-trip flight deals from Kalispell to Ontario

Mon, Nov 16 - Wed, Nov 18
Multiple Airlines Logo
8:18 pm - 9:40 amFCA  Kalispell Glacier Park-ONT Ontario
14h 22m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
5:07 pm - 9:52 amONT  Ontario-FCA Kalispell Glacier Park
15h 45m1 stop Las Vegas Harry Reid Intl
$174Multiple Airlines
Tue, Nov 24 - Wed, Dec 2
Multiple Airlines Logo
9:01 pm - 7:20 amFCA  Kalispell Glacier Park-ONT Ontario
11h 19m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
2:00 pm - 9:28 amONT  Ontario-FCA Kalispell Glacier Park
18h 28m1 stop Las Vegas Harry Reid Intl
$179Multiple Airlines
Tue, Nov 24 - Wed, Dec 2
Multiple Airlines Logo
9:01 pm - 12:24 amFCA  Kalispell Glacier Park-ONT Ontario
28h 23m2 stops Las Vegas Harry Reid Intl San Francisco
Multiple Airlines Logo
8:00 am - 9:28 amONT  Ontario-FCA Kalispell Glacier Park
24h 28m1 stop Las Vegas Harry Reid Intl
$301Multiple Airlines
Tue, Jan 19 - Fri, Jan 22
Alaska Airlines Logo
7:57 pm - 10:38 amFCA  Kalispell Glacier Park-ONT Ontario
15h 41m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:20 am - 1:11 pmONT  Ontario-FCA Kalispell Glacier Park
4h 51m1 stop Portland
$347Alaska Airlines
Wed, Nov 18 - Sun, Nov 22
Delta Logo
6:17 pm - 11:49 pmFCA  Kalispell Glacier Park-ONT Ontario
6h 32m1 stop Salt Lake City
Delta Logo
6:00 am - 11:31 amONT  Ontario-FCA Kalispell Glacier Park
4h 31m1 stop Salt Lake City
$369Delta
Tue, Nov 17 - Thu, Nov 19
Delta Logo
6:17 pm - 11:49 pmFCA  Kalispell Glacier Park-ONT Ontario
6h 32m1 stop Salt Lake City
Delta Logo
6:00 am - 11:31 amONT  Ontario-FCA Kalispell Glacier Park
4h 31m1 stop Salt Lake City
$369Delta
Sun, Dec 20 - Sat, Jan 9
Delta Logo
12:36 pm - 4:10 pmFCA  Kalispell Glacier Park-ONT Ontario
4h 34m1 stop Salt Lake City
Delta Logo
6:00 am - 1:01 pmONT  Ontario-FCA Kalispell Glacier Park
6h 01m1 stop Salt Lake City
$373Delta
Wed, Jan 13 - Tue, Jan 19
United Airlines Logo
6:10 am - 12:40 pmFCA  Kalispell Glacier Park-ONT Ontario
7h 30m1 stop Denver Intl
United Airlines Logo
1:42 pm - 9:52 pmONT  Ontario-FCA Kalispell Glacier Park
7h 10m1 stop Denver Intl
$447United Airlines
Fri, Jan 29 - Mon, Feb 1
United Airlines Logo
1:33 pm - 5:35 pmFCA  Kalispell Glacier Park-ONT Ontario
5h 02m1 stop San Francisco
United Airlines Logo
6:00 am - 12:52 pmONT  Ontario-FCA Kalispell Glacier Park
5h 52m1 stop San Francisco
$447United Airlines
Sat, Nov 21 - Thu, Nov 26
United Airlines Logo
2:36 pm - 8:51 pmFCA  Kalispell Glacier Park-ONT Ontario
7h 15m1 stop Denver Intl
United Airlines Logo
5:00 am - 1:34 pmONT  Ontario-FCA Kalispell Glacier Park
7h 34m1 stop Denver Intl
$555United Airlines
Booking Insights

Price, demand and travel trends for Kalispell to Ontario flights

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

What’s the cheapest month to fly from Kalispell to Ontario?

•February is the cheapest month to fly from Kalispell to Ontario at $276 round-trip.
•April ($715) and July ($691) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 159% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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Key details for Kalispell to Ontario flights

Low season

February

Cheapest flight

$160
Beat the crowds with an average 64% drop in travelers.
The most popular month to fly with an average 78% increase in travelers.
One-way flight from Kalispell to Ontario

When to book flights from Kalispell to Ontario

Are your dates flexible? Find out the best times to travel from Kalispell to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Kalispell to Ontario flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Kalispell to Ontario?

    Two cabin classes are available on flights from Kalispell to Ontario:

    • Economy Class
    • First Class

  • How long is a flight from Kalispell to Ontario?

    A nonstop flight from Kalispell to Ontario takes 00m, covering 999 miles.

  • Do I need a passport to fly from Kalispell 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 Kalispell to Ontario flight?

    Round-trip flights from Kalispell to Ontario range from $326 to $444, with an average of $375 over the past 12 months. Anything below $326 counts as a good deal.

  • Have flight prices from Kalispell 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 $174 to $1,420. That means the highest observed fare was about 8x higher than the lowest one.

  • How are flight prices from Kalispell to Ontario looking right now?

    One-way fares from Kalispell to Ontario are currently lower than usual. Average one-way flight prices are about $222, which is 10% below 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 averaging $60 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Alamo
    • Dollar

  • Which airports can I use when flying from Kalispell to Ontario?

    Flights from Kalispell to Ontario usually depart from Kalispell Glacier Park (FCA) and arrive at Ontario (ONT).

  • Which airports do connecting flights from Kalispell to Ontario pass through?

    One-stop flights from Kalispell to Ontario most commonly connect through:

    • Salt Lake City (SLC) - 54% of one-stop connections
    • San Francisco (SFO) - 22% of one-stop connections
    • Denver Intl (DEN) - 13% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 9% of one-stop connections

  • Can I save money by using flexible dates for flights from Kalispell to Ontario?

    Yes. Flexible dates can save you up to 71% on flights from Kalispell to Ontario. Tuesday is the cheapest departure day at $192 round-trip on average, while Sunday is the most expensive at $662, a difference of $470.

    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 Kalispell to Ontario?

    Flying via San Francisco (SFO) gives the shortest average 1-stop total travel time at 4h 59m, compared with 5h 10m via Salt Lake City (SLC) and 5h 14m via Portland (PDX).

  • What is the time difference between Kalispell and Ontario?

    Ontario is 1 hour behind Kalispell (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.

Your guide to booking Kalispell to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average $192, about $470 less than Sunday fares (71% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Kalispell to Ontario trip for February. Fares historically average $276 round-trip in that month - typically $439 less than the most expensive month, which is April (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
    • Holiday Inn Ontario Airport By IHG
    • Azure Hotel & Suites, Trademark Collection by Wyndham

More options for your flight from Kalispell to Ontario

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

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario