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Cheap flights from Montana to Los Angeles from $105

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Los Angeles departing on 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Montana to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
12:54 pm - 5:03 pmFCA-ONT
5h 09m1 stop
Alaska Airlines Logo
7:00 am - 1:14 pmONT-FCA
5h 14m1 stop
$208Alaska Airlines
Find Deal
Wed, Jan 7 - Sat, Jan 10
Alaska Airlines Logo
12:54 pm - 5:03 pmFCA-ONT
5h 09m1 stop
Alaska Airlines Logo
4:03 pm - 11:58 pmONT-FCA
6h 55m1 stop
$210Alaska Airlines
Find Deal
Thu, Jan 29 - Sat, Jan 31
Delta Logo
6:06 pm - 11:58 pmFCA-ONT
6h 52m1 stop
Delta Logo
6:00 am - 11:31 amONT-FCA
4h 31m1 stop
$217Delta
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Wed, Dec 10 - Mon, Dec 15
Delta Logo
12:11 pm - 10:47 pmFCA-ONT
11h 36m2 stops
Delta Logo
6:00 am - 11:31 amONT-FCA
4h 31m1 stop
$222Delta
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Sat, Dec 13 - Wed, Dec 17
Hawaiian Airlines Logo
3:03 pm - 11:56 pmBZN-ONT
9h 53m1 stop
Hawaiian Airlines Logo
4:03 pm - 11:56 pmONT-BZN
6h 53m1 stop
$224Hawaiian Airlines
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Thu, Jan 8 - Mon, Jan 12
Hawaiian Airlines Logo
7:00 am - 11:29 pmBZN-ONT
17h 29m1 stop
Hawaiian Airlines Logo
7:10 am - 1:04 pmONT-BZN
4h 54m1 stop
$227Hawaiian Airlines
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Thu, Dec 4 - Sun, Dec 7
Multiple Airlines Logo
2:52 pm - 9:06 pmGTF-ONT
7h 14m1 stop
Multiple Airlines Logo
6:15 am - 10:22 amONT-GTF
27h 07m1 stop
$263Multiple Airlines
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Wed, Nov 26 - Tue, Dec 2
Multiple Airlines Logo
10:25 pm - 9:17 pmGTF-ONT
23h 52m1 stop
Multiple Airlines Logo
6:37 pm - 9:40 pmONT-GTF
26h 03m1 stop
$265Multiple Airlines
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Fri, Dec 12 - Sun, Jan 4
United Airlines Logo
6:00 am - 12:47 pmFCA-ONT
7h 47m1 stop
United Airlines Logo
6:00 am - 12:59 pmONT-FCA
5h 59m1 stop
$281United Airlines
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Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
4:00 pm - 10:51 pmBZN-ONT
7h 51m1 stop
United Airlines Logo
6:00 am - 2:46 pmONT-BZN
7h 46m1 stop
$301United Airlines
Find Deal
Mon, Nov 17 - Thu, Nov 20

Hawaiian Airlines flights from Montana to Ontario

Our best Hawaiian Airlines deals on Montana to Ontario flight tickets
Hawaiian Airlines
Jan 8
BZN3:03 pmBozeman Gallatin Field
9h 53m
1 stop
ONT11:56 pmOntario
Jan 12
ONT4:03 pmOntario
6h 53m
1 stop
BZN11:56 pmBozeman Gallatin Field
$224
Find similar
Hawaiian Airlines
Dec 4
BZN7:00 amBozeman Gallatin Field
17h 29m
1 stop
ONT11:29 pmOntario
Dec 7
ONT7:10 amOntario
4h 54m
1 stop
BZN1:04 pmBozeman Gallatin Field
$227
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Southwest flights from Montana to Ontario

Our best Southwest deals on Montana to Ontario flight tickets
Southwest
Dec 17
BZN12:40 pmBozeman Gallatin Field
8h 20m
2 stops
ONT8:00 pmOntario
Dec 20
ONT4:30 pmOntario
7h 05m
1 stop
BZN12:35 amBozeman Gallatin Field
$353
Find similar
Southwest
Dec 17
BZN5:30 amBozeman Gallatin Field
8h 45m
2 stops
ONT1:15 pmOntario
Dec 20
ONT3:40 pmOntario
7h 55m
2 stops
BZN12:35 amBozeman Gallatin Field
$402
Find similar
Southwest
Nov 30
BZN7:45 pmBozeman Gallatin Field
5h 05m
1 stop
ONT11:50 pmOntario
Dec 5
ONT6:50 amOntario
4h 05m
1 stop
BZN11:55 amBozeman Gallatin Field
$569
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momondo Fare Finder

 
Customize your flight search to find flights from Montana to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Montana to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Wed 1/7

12:54 pm-5:03 pm

1 stop5h 09m

Ontario

Sat 1/10

7:00 am-1:14 pm

1 stop5h 14m

$208

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Thu 1/29

12:54 pm-5:03 pm

1 stop5h 09m

Ontario

Sat 1/31

4:03 pm-11:58 pm

1 stop6h 55m

$210

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Wed 12/10

6:06 pm-11:58 pm

1 stop6h 52m

Ontario

Mon 12/15

6:00 am-11:31 am

1 stop4h 31m

$217

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Sat 12/13

12:11 pm-10:47 pm

2 stops11h 36m

Ontario

Wed 12/17

6:00 am-11:31 am

1 stop4h 31m

$222

BozemanOntario

BZN - ONT

BZNONT

Bozeman Gallatin Field

Thu 1/8

3:03 pm-11:56 pm

1 stop9h 53m

Ontario

Mon 1/12

4:03 pm-11:56 pm

1 stop6h 53m

$224

BozemanOntario

BZN - ONT

BZNONT

Bozeman Gallatin Field

Thu 12/4

7:00 am-11:29 pm

1 stop17h 29m

Ontario

Sun 12/7

7:10 am-1:04 pm

1 stop4h 54m

$227

Great FallsOntario

GTF - ONT

GTFONT

Great Falls

Wed 11/26

2:52 pm-9:06 pm

1 stop7h 14m

Ontario

Tue 12/2

6:15 am-10:22 am

1 stop27h 07m

$263

Great FallsOntario

GTF - ONT

GTFONT

Great Falls

Fri 12/12

10:25 pm-9:17 pm

1 stop23h 52m

Ontario

Sun 1/4

6:37 pm-9:40 pm

1 stop26h 03m

$265

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Thu 1/29

6:00 am-12:47 pm

1 stop7h 47m

Ontario

Mon 2/2

6:00 am-12:59 pm

1 stop5h 59m

$281

BozemanOntario

BZN - ONT

BZNONT

Bozeman Gallatin Field

Mon 11/17

4:00 pm-10:51 pm

1 stop7h 51m

Ontario

Thu 11/20

6:00 am-2:46 pm

1 stop7h 46m

$301

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Montana to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ontario?

In general, February is the cheapest month to fly from Montana to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $240. If you aren’t able to travel during the month of February, then book flights to Ontario from Montana during April instead. Flights to Ontario in April, while not as cheap as those in February, still average around $256.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as $436. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Montana to Ontario for around $654.

What is the cheapest time of day to depart on your flight to Ontario?

In the afternoon is the cheapest time of day to fly from Montana to Ontario when you can find flight prices for as low as $465. Flying to Ontario in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $635 on average. Flights to Ontario from Montana at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Montana to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to Ontario

Direct flights

None
There are no direct flights from Montana to Ontario. There are no popular flight routes from Montana to Ontario.
Search flight deals

  • When did momondo last update prices for flights from Montana to Ontario Airport?

    Prices for flights from Montana to Ontario Airport are updated daily.

  • How many operators does momondo search for flights from Montana to Ontario Airport?

  • How old do you have to be to fly from Montana to Ontario Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montana to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Montana to Ontario

Compare and see reviews for airlines that fly from Montana to Ontario with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $203Free CancellationRating
7.9
8,001 reviews
Search Delta flights
SouthwestPriceFrom $227Free CancellationRating
8.0
4,240 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $229Free CancellationRating
8.0
11,241 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $232Free CancellationRating
7.4
9,003 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Montana to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Montana to Ontario. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Montana to Ontario with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ontario from Montana which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Montana to Ontario?

Once all potential Montana to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Montana to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from Montana are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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