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Cheap flights from Missoula to Los Angeles from $156

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missoula to Los Angeles departing on 6/10. 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 Missoula to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:24 am - 3:07 pm
MSO
-
ONT
5h 43m
1 stop
Multiple Airlines Logo
3:40 pm - 9:34 am
ONT
-
MSO
16h 54m
1 stop
$254Multiple Airlines
Thu, Jul 23 - Wed, Jul 29
Multiple Airlines Logo
10:24 am - 10:57 am
MSO
-
ONT
25h 33m
2 stops
Multiple Airlines Logo
3:40 pm - 9:34 am
ONT
-
MSO
16h 54m
1 stop
$293Multiple Airlines
Thu, Jul 23 - Wed, Jul 29
Delta Logo
12:50 pm - 4:12 pm
MSO
-
ONT
4h 22m
1 stop
Delta Logo
6:00 am - 12:36 pm
ONT
-
MSO
5h 36m
1 stop
$311Delta
Wed, Oct 7 - Wed, Oct 14
Delta Logo
12:50 pm - 10:43 pm
MSO
-
ONT
10h 53m
2 stops
Delta Logo
5:05 pm - 12:31 am
ONT
-
MSO
6h 26m
1 stop
$316Delta
Wed, Oct 7 - Mon, Oct 12
Delta Logo
12:50 pm - 10:43 pm
MSO
-
ONT
10h 53m
2 stops
Delta Logo
11:55 am - 12:31 am
ONT
-
MSO
11h 36m
2 stops
$321Delta
Wed, Oct 7 - Wed, Oct 14
United Airlines Logo
4:19 pm - 10:37 pm
MSO
-
ONT
7h 18m
1 stop
United Airlines Logo
5:00 am - 1:24 pm
ONT
-
MSO
7h 24m
1 stop
$326United Airlines
Wed, Jun 3 - Wed, Jun 10
Delta Logo
6:29 pm - 11:49 pm
MSO
-
ONT
6h 20m
1 stop
Delta Logo
5:10 pm - 11:12 pm
ONT
-
MSO
5h 02m
1 stop
$361Delta
Thu, Jul 2 - Sat, Jul 11
Alaska Airlines Logo
8:02 pm - 11:58 pm
MSO
-
ONT
4h 56m
1 stop
Alaska Airlines Logo
3:35 pm - 7:22 pm
ONT
-
MSO
26h 47m
2 stops
$382Alaska Airlines
Wed, Jun 3 - Sat, Jun 6
Alaska Airlines Logo
5:00 pm - 11:11 pm
MSO
-
ONT
7h 11m
1 stop
Alaska Airlines Logo
3:05 pm - 10:59 pm
ONT
-
MSO
6h 54m
1 stop
$386Alaska Airlines
Mon, Aug 17 - Thu, Aug 20
Multiple Airlines Logo
2:46 pm - 11:13 am
MSO
-
ONT
45h 27m
2 stops
Multiple Airlines Logo
3:34 pm - 9:34 am
ONT
-
MSO
17h 00m
1 stop
$390Multiple Airlines
Fri, Jun 26 - Sat, Jul 4

Delta flights from Missoula to Ontario

Our best Delta deals on Missoula to Ontario flight tickets
Delta
Oct 7
MSO12:50 pmMissoula Johnson-Bell Field
4h 22m
1 stop
ONT4:12 pmOntario
Oct 14
ONT6:00 amOntario
5h 36m
1 stop
MSO12:36 pmMissoula Johnson-Bell Field
$311
Delta
Oct 7
MSO12:50 pmMissoula Johnson-Bell Field
10h 53m
2 stops
ONT10:43 pmOntario
Oct 12
ONT5:05 pmOntario
6h 26m
1 stop
MSO12:31 amMissoula Johnson-Bell Field
$316
Delta
Oct 7
MSO12:50 pmMissoula Johnson-Bell Field
10h 53m
2 stops
ONT10:43 pmOntario
Oct 14
ONT11:55 amOntario
11h 36m
2 stops
MSO12:31 amMissoula Johnson-Bell Field
$321

United Airlines flights from Missoula to Ontario

Our best United Airlines deals on Missoula to Ontario flight tickets
United Airlines
Jun 3
MSO4:19 pmMissoula Johnson-Bell Field
7h 18m
1 stop
ONT10:37 pmOntario
Jun 10
ONT5:00 amOntario
7h 24m
1 stop
MSO1:24 pmMissoula Johnson-Bell Field
$326
United Airlines
Jun 3
MSO6:15 amMissoula Johnson-Bell Field
7h 32m
1 stop
ONT12:47 pmOntario
Jun 6
ONT5:00 amOntario
7h 24m
1 stop
MSO1:24 pmMissoula Johnson-Bell Field
$410
United Airlines
Jun 3
MSO6:15 amMissoula Johnson-Bell Field
7h 32m
1 stop
ONT12:47 pmOntario
Jun 6
ONT5:00 amOntario
7h 24m
1 stop
MSO1:24 pmMissoula Johnson-Bell Field
$435

momondo Fare Finder

 
Customize your flight search to find flights from Missoula 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 May 15, 2026.
Use the filters below to find and compare flights from Missoula to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Thu 7/23

10:24 am-3:07 pm

1 stop5h 43m

Ontario

Wed 7/29

3:40 pm-9:34 am

1 stop16h 54m

$254

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Thu 7/23

10:24 am-10:57 am

2 stops25h 33m

Ontario

Wed 7/29

3:40 pm-9:34 am

1 stop16h 54m

$293
Quickest round-trip

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Wed 10/7

12:50 pm-4:12 pm

1 stop4h 22m

Ontario

Wed 10/14

6:00 am-12:36 pm

1 stop5h 36m

$311

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Wed 10/7

12:50 pm-10:43 pm

2 stops10h 53m

Ontario

Mon 10/12

5:05 pm-12:31 am

1 stop6h 26m

$316

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Wed 10/7

12:50 pm-10:43 pm

2 stops10h 53m

Ontario

Wed 10/14

11:55 am-12:31 am

2 stops11h 36m

$321

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Wed 6/3

4:19 pm-10:37 pm

1 stop7h 18m

Ontario

Wed 6/10

5:00 am-1:24 pm

1 stop7h 24m

$326

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Thu 7/2

6:29 pm-11:49 pm

1 stop6h 20m

Ontario

Sat 7/11

5:10 pm-11:12 pm

1 stop5h 02m

$361

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Wed 6/3

8:02 pm-11:58 pm

1 stop4h 56m

Ontario

Sat 6/6

3:35 pm-7:22 pm

2 stops26h 47m

$382

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Mon 8/17

5:00 pm-11:11 pm

1 stop7h 11m

Ontario

Thu 8/20

3:05 pm-10:59 pm

1 stop6h 54m

$386

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Fri 6/26

2:46 pm-11:13 am

2 stops45h 27m

Ontario

Sat 7/4

3:34 pm-9:34 am

1 stop17h 00m

$390

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 Missoula 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 typical price of a round-trip flight between Missoula and Ontario?

What is the cheapest month to fly to Ontario?

In general, January is the cheapest month to fly from Missoula to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $236. If you aren’t able to travel during the month of January, then book flights to Ontario from Missoula during February instead. Flights to Ontario in February, while not as cheap as those in January, still average around $273.

When to book flights from Missoula to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Missoula to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Missoula to Ontario (MSO to ONT) flight deals and tips

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

Fastest flight time

4h 12m

Direct flights

None
The fastest flight from Missoula to Ontario takes 4h 12m
There are no direct flights from Missoula to Ontario. There are no popular flight routes from Missoula to Ontario.
Search flight deals

Frequently asked questions about flying from Missoula to Ontario

  • How far is Missoula Johnson-Bell Field to Ontario by plane?

    There are 904.7 mi between Missoula Johnson-Bell Field and Ontario. In terms of flight time, this usually takes a little over 4h 12m.

  • When did momondo last update prices for flights from Missoula Johnson-Bell Field Airport to Ontario Airport?

    Prices for flights from Missoula Johnson-Bell Field Airport to Ontario Airport are updated daily.

  • How many operators does momondo search for flights from Missoula Johnson-Bell Field Airport to Ontario Airport?

  • How old do you have to be to fly from Missoula Johnson-Bell Field Airport to Ontario Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missoula Johnson-Bell Field Airport to Ontario Airport.

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

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Missoula to Ontario?

Best airlines flying from Missoula to Ontario

Compare and see reviews for airlines that fly from Missoula to Ontario with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $160Free CancellationRating
7.9
8,452 reviews
Search Delta flights
Alaska AirlinesPriceFrom $256Free CancellationRating
7.9
12,363 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,715 reviews
Search United Airlines flights

Why use momondo?

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

It is quick and easy to find Missoula to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

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

Yes. All flights to Ontario from Missoula on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Missoula.

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

Price alerts on flights to Ontario from Missoula 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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