How long does it take to fly to Ontario?

Average flight duration from Montana to Ontario depends on which airport you fly into and out of. Flying from Bozeman to Los Angeles is 2h 43m on average, while flying from Kalispell to Los Angeles is 2h 56m on average. Los Angeles is the most popular airport in Ontario.

What airlines fly to Ontario?

Delta, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Ontario from Montana according to our data. Delta is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 6 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Montana to Ontario?

Alaska Airlines, Delta, and United Airlines are the most popular carriers operating from Montana to Ontario

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?

As of February 2026, there are 4 operators available to choose from 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.

$106 Cheap Flights from Montana to Ontario in 2026

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3:02 pm - 10:44 pm

BZN

ONT

8h 42m

1 stop

6:14 am - 2:08 pm

ONT

BZN

6h 54m

1 stop

$211Alaska Airlines

Tue, Feb 24 - Sat, Feb 28

5:56 pm - 11:51 pm

FCA

ONT

6h 55m

1 stop

6:00 am - 11:26 am

ONT

FCA

4h 26m

1 stop

$217Delta

Tue, Mar 31 - Thu, Apr 9

2:25 pm - 8:50 pm

HLN

ONT

7h 25m

1 stop

5:15 am - 1:38 pm

ONT

HLN

7h 23m

1 stop

$217United Airlines

Wed, Mar 4 - Sat, Mar 14

6:30 pm - 11:51 pm

BZN

ONT

6h 21m

1 stop

6:00 am - 2:36 pm

ONT

BZN

7h 36m

1 stop

$217Delta

Mon, Mar 30 - Tue, Apr 7

6:04 pm - 10:48 pm

MSO

ONT

5h 44m

1 stop

5:09 pm - 12:24 am

ONT

MSO

6h 15m

1 stop

$217Delta

Sat, Mar 21 - Tue, Mar 24

4:04 pm - 8:23 pm

BZN

ONT

5h 19m

1 stop

7:00 am - 1:10 pm

ONT

BZN

5h 10m

1 stop

$222Alaska Airlines

Tue, Mar 31 - Tue, Apr 7

5:05 am - 1:39 pm

FCA

ONT

9h 34m

2 stops

5:05 pm - 11:27 pm

ONT

FCA

5h 22m

1 stop

$222Delta

Thu, Apr 30 - Mon, May 4

5:30 am - 1:54 pm

HLN

ONT

9h 24m

2 stops

6:00 am - 12:21 pm

ONT

HLN

5h 21m

1 stop

$222Delta

Wed, Feb 25 - Wed, Mar 11

2:25 pm - 8:36 pm

HLN

ONT

7h 11m

1 stop

1:34 pm - 9:33 pm

ONT

HLN

6h 59m

1 stop

$235United Airlines

Sat, Apr 11 - Wed, Apr 15

7:25 am - 11:28 am

BIL

ONT

5h 03m

1 stop

5:02 pm - 11:35 pm

ONT

BIL

5h 33m

1 stop

$356American Airlines

Thu, Feb 26 - Sun, Mar 1

Delta flights from Montana to Ontario

Our best Delta deals on Montana to Ontario flight tickets

Delta

Mar 31

FCA5:56 pmKalispell Glacier Park

6h 55m

1 stop

ONT11:51 pmOntario

Apr 9

ONT6:00 amOntario

4h 26m

1 stop

FCA11:26 amKalispell Glacier Park

$217

Delta

Apr 30

FCA5:05 amKalispell Glacier Park

9h 34m

2 stops

ONT1:39 pmOntario

May 4

ONT5:05 pmOntario

5h 22m

1 stop

FCA11:27 pmKalispell Glacier Park

$222

Delta

Feb 26

FCA6:15 pmKalispell Glacier Park

6h 34m

1 stop

ONT11:49 pmOntario

Mar 2

ONT6:00 amOntario

4h 32m

1 stop

FCA11:32 amKalispell Glacier Park

$225

Alaska Airlines flights from Montana to Ontario

Our best Alaska Airlines deals on Montana to Ontario flight tickets

Alaska Airlines

Feb 24

BZN3:02 pmBozeman Gallatin Field

8h 42m

1 stop

ONT10:44 pmOntario

Feb 28

ONT6:14 amOntario

6h 54m

1 stop

BZN2:08 pmBozeman Gallatin Field

$211

Alaska Airlines

Mar 31

BZN4:04 pmBozeman Gallatin Field

5h 19m

1 stop

ONT8:23 pmOntario

Apr 7

ONT7:00 amOntario

5h 10m

1 stop

BZN1:10 pmBozeman Gallatin Field

$222

Alaska Airlines

Feb 24

BZN3:02 pmBozeman Gallatin Field

8h 42m

1 stop

ONT10:44 pmOntario

Feb 26

ONT4:02 pmOntario

6h 54m

1 stop

BZN11:56 pmBozeman Gallatin Field

$231

Fly from

Fly to

Route

Depart

Return

Price

BozemanOntario

BZN - ONT

BZNONT

Bozeman Gallatin Field

Tue 2/24

3:02 pm-10:44 pm

1 stop8h 42m

Ontario

Sat 2/28

6:14 am-2:08 pm

1 stop6h 54m

$211

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Tue 3/31

5:56 pm-11:51 pm

1 stop6h 55m

Ontario

Thu 4/9

6:00 am-11:26 am

1 stop4h 26m

$217

HelenaOntario

HLN - ONT

HLNONT

Helena

Wed 3/4

2:25 pm-8:50 pm

1 stop7h 25m

Ontario

Sat 3/14

5:15 am-1:38 pm

1 stop7h 23m

$217

BozemanOntario

BZN - ONT

BZNONT

Bozeman Gallatin Field

Mon 3/30

6:30 pm-11:51 pm

1 stop6h 21m

Ontario

Tue 4/7

6:00 am-2:36 pm

1 stop7h 36m

$217

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Sat 3/21

6:04 pm-10:48 pm

1 stop5h 44m

Ontario

Tue 3/24

5:09 pm-12:24 am

1 stop6h 15m

$217

BozemanOntario

BZN - ONT

BZNONT

Bozeman Gallatin Field

Tue 3/31

4:04 pm-8:23 pm

1 stop5h 19m

Ontario

Tue 4/7

7:00 am-1:10 pm

1 stop5h 10m

$222

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Thu 4/30

5:05 am-1:39 pm

2 stops9h 34m

Ontario

Mon 5/4

5:05 pm-11:27 pm

1 stop5h 22m

$222

HelenaOntario

HLN - ONT

HLNONT

Helena

Wed 2/25

5:30 am-1:54 pm

2 stops9h 24m

Ontario

Wed 3/11

6:00 am-12:21 pm

1 stop5h 21m

$222

HelenaOntario

HLN - ONT

HLNONT

Helena

Sat 4/11

2:25 pm-8:36 pm

1 stop7h 11m

Ontario

Wed 4/15

1:34 pm-9:33 pm

1 stop6h 59m

$235

BillingsOntario

BIL - ONT

BILONT

Billings Logan Intl

Thu 2/26

7:25 am-11:28 am

1 stop5h 03m

Ontario

Sun 3/1

5:02 pm-11:35 pm

1 stop5h 33m

$356

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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

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What is the cheapest month to fly to Ontario?

In general, April 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 $262. If you aren’t able to travel during the month of April, then book flights to Ontario from Montana during August instead. Flights to Ontario in August, while not as cheap as those in April, still average around $264.

Cheap Montana to Ontario flight deals and tips

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

Fastest flight time	4h 03m
Direct flights	None

The fastest flight from Montana to Ontario takes 4h 03m

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?
As of February 2026, there are 4 operators available to choose from 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
Delta	PriceFrom $108	Free Cancellation	Rating 7.9 8,153 reviews	Search Delta flights
United Airlines	PriceFrom $164	Free Cancellation	Rating 7.4 9,241 reviews	Search United Airlines flights
Southwest	PriceFrom $227	Free Cancellation	Rating 8.0 4,275 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $276	Free Cancellation	Rating 8.0 11,840 reviews	Search Alaska 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.

An easier way to manage your Ontario trip

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Cheap flights from Montana to Los Angeles from $106

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 4/17. 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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How to get the cheapest flight ticket from Montana to Ontario

What is the cheapest month to fly to Ontario?

What is the cheapest airline that flies from Montana to Ontario?

Alaska Airlines, Delta, and United Airlines are the most popular carriers operating from Montana to Ontario

What airlines fly to Ontario?

How long does it take to fly to Ontario?

Average flight duration from Montana to Ontario depends on which airport you fly into and out of. Flying from Bozeman to Los Angeles is 2h 43m on average, while flying from Kalispell to Los Angeles is 2h 56m on average. Los Angeles is the most popular airport in Ontario.

Cheap Montana to Ontario flight deals and tips

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

Fastest flight time

Direct flights

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

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?

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

Best airlines flying from Montana to Ontario

Compare and see reviews for airlines that fly from Montana to Ontario with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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Fly your favorite airline to Los Angeles

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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