Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Missoula to Los Angeles from $145

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 8/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
9:49 pm - 4:59 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
20h 10m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
7:11 pm - 8:59 pmONT  Ontario-MSO Missoula Johnson-Bell Field
24h 48m2 stops Dallas/Fort Worth Las Vegas Harry Reid Intl
$385Multiple Airlines
Thu, Sep 10 - Wed, Sep 16
Alaska Airlines Logo
7:00 am - 2:16 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
8h 16m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
3:14 pm - 11:01 pmONT  Ontario-MSO Missoula Johnson-Bell Field
6h 47m1 stop Seattle/Tacoma Intl
$429Alaska Airlines
Thu, Sep 17 - Thu, Oct 1
Alaska Airlines Logo
7:00 am - 11:16 amMSO  Missoula Johnson-Bell Field-ONT Ontario
5h 16m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
3:14 pm - 11:01 pmONT  Ontario-MSO Missoula Johnson-Bell Field
6h 47m1 stop Seattle/Tacoma Intl
$429Alaska Airlines
Wed, Sep 16 - Tue, Sep 29
Alaska Airlines Logo
7:00 am - 2:16 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
8h 16m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
3:14 pm - 11:01 pmONT  Ontario-MSO Missoula Johnson-Bell Field
6h 47m1 stop Seattle/Tacoma Intl
$429Alaska Airlines
Wed, Sep 16 - Thu, Oct 1
Delta Logo
6:28 pm - 11:58 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
6h 30m1 stop Salt Lake City
Delta Logo
6:00 am - 12:44 pmONT  Ontario-MSO Missoula Johnson-Bell Field
5h 44m1 stop Salt Lake City
$449Delta
Fri, Nov 13 - Sun, Nov 15
Delta Logo
1:27 pm - 4:35 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
4h 08m1 stop Salt Lake City
Delta Logo
5:15 pm - 12:18 amONT  Ontario-MSO Missoula Johnson-Bell Field
6h 03m1 stop Salt Lake City
$449Delta
Wed, Sep 23 - Mon, Sep 28
United Airlines Logo
4:15 pm - 8:01 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
4h 46m1 stop San Francisco
United Airlines Logo
5:00 am - 1:38 pmONT  Ontario-MSO Missoula Johnson-Bell Field
7h 38m1 stop Denver Intl
$449United Airlines
Wed, Sep 9 - Wed, Sep 16
United Airlines Logo
4:05 pm - 10:51 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
7h 46m1 stop San Francisco
United Airlines Logo
5:00 am - 1:31 pmONT  Ontario-MSO Missoula Johnson-Bell Field
7h 31m1 stop Denver Intl
$509United Airlines
Thu, Oct 22 - Sun, Oct 25
American Airlines Logo
1:12 pm - 12:03 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
23h 51m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl
American Airlines Logo
12:59 pm - 12:48 pmONT  Ontario-MSO Missoula Johnson-Bell Field
22h 49m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$681American Airlines
Tue, Aug 25 - Fri, Aug 28
American Airlines Logo
1:12 pm - 12:03 pmMSO  Missoula Johnson-Bell Field-ONT Ontario
23h 51m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl
American Airlines Logo
8:01 pm - 12:48 pmONT  Ontario-MSO Missoula Johnson-Bell Field
15h 47m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$707American Airlines
Fri, Aug 28 - Sun, Aug 30

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Alaska Airlines flights from Missoula to Ontario

Our best Alaska Airlines deals on Missoula to Ontario flight tickets
Alaska Airlines
Oct 22
MSO7:03 amMissoula Johnson-Bell Field
7h 13m
1 stop
ONT1:16 pmOntario
Oct 29
ONT2:13 pmOntario
7h 41m
1 stop
MSO10:54 pmMissoula Johnson-Bell Field
$429
Alaska Airlines
Sep 11
MSO4:16 pmMissoula Johnson-Bell Field
8h 08m
1 stop
ONT11:24 pmOntario
Sep 15
ONT6:02 amOntario
5h 37m
1 stop
MSO12:39 pmMissoula Johnson-Bell Field
$439
Alaska Airlines
Oct 24
MSO7:03 amMissoula Johnson-Bell Field
7h 13m
1 stop
ONT1:16 pmOntario
Oct 28
ONT6:02 amOntario
7h 48m
1 stop
MSO2:50 pmMissoula Johnson-Bell Field
$459

United Airlines flights from Missoula to Ontario

Our best United Airlines deals on Missoula to Ontario flight tickets
United Airlines
Aug 28
MSO4:11 pmMissoula Johnson-Bell Field
7h 48m
1 stop
ONT10:59 pmOntario
Aug 30
ONT1:18 pmOntario
7h 13m
1 stop
MSO9:31 pmMissoula Johnson-Bell Field
$529
United Airlines
Oct 1
MSO4:05 pmMissoula Johnson-Bell Field
7h 46m
1 stop
ONT10:51 pmOntario
Oct 8
ONT5:00 amOntario
7h 32m
1 stop
MSO1:32 pmMissoula Johnson-Bell Field
$545
United Airlines
Sep 10
MSO4:05 pmMissoula Johnson-Bell Field
4h 56m
1 stop
ONT8:01 pmOntario
Sep 13
ONT5:00 amOntario
7h 38m
1 stop
MSO1:38 pmMissoula Johnson-Bell Field
$558

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 August 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 Missoula Johnson-Bell Field - ONT Ontario

MSOONT

Missoula Johnson-Bell Field

Thu 9/10

9:49 pm-4:59 pm

1 stop20h 10m

Ontario

Wed 9/16

7:11 pm-8:59 pm

2 stops24h 48m

$385

MissoulaOntario

MSO Missoula Johnson-Bell Field - ONT Ontario

MSOONT

Missoula Johnson-Bell Field

Thu 9/17

7:00 am-2:16 pm

1 stop8h 16m

Ontario

Thu 10/1

3:14 pm-11:01 pm

1 stop6h 47m

$429

MissoulaOntario

MSO Missoula Johnson-Bell Field - ONT Ontario

MSOONT

Missoula Johnson-Bell Field

Wed 9/16

7:00 am-11:16 am

1 stop5h 16m

Ontario

Tue 9/29

3:14 pm-11:01 pm

1 stop6h 47m

$429

MissoulaOntario

MSO Missoula Johnson-Bell Field - ONT Ontario

MSOONT

Missoula Johnson-Bell Field

Wed 9/16

7:00 am-2:16 pm

1 stop8h 16m

Ontario

Thu 10/1

3:14 pm-11:01 pm

1 stop6h 47m

$429

MissoulaOntario

MSO Missoula Johnson-Bell Field - ONT Ontario

MSOONT

Missoula Johnson-Bell Field

Fri 11/13

6:28 pm-11:58 pm

1 stop6h 30m

Ontario

Sun 11/15

6:00 am-12:44 pm

1 stop5h 44m

$449
Quickest round-trip

MissoulaOntario

MSO Missoula Johnson-Bell Field - ONT Ontario

MSOONT

Missoula Johnson-Bell Field

Wed 9/23

1:27 pm-4:35 pm

1 stop4h 08m

Ontario

Mon 9/28

5:15 pm-12:18 am

1 stop6h 03m

$449

MissoulaOntario

MSO Missoula Johnson-Bell Field - ONT Ontario

MSOONT

Missoula Johnson-Bell Field

Wed 9/9

4:15 pm-8:01 pm

1 stop4h 46m

Ontario

Wed 9/16

5:00 am-1:38 pm

1 stop7h 38m

$449

MissoulaOntario

MSO Missoula Johnson-Bell Field - ONT Ontario

MSOONT

Missoula Johnson-Bell Field

Thu 10/22

4:05 pm-10:51 pm

1 stop7h 46m

Ontario

Sun 10/25

5:00 am-1:31 pm

1 stop7h 31m

$509

MissoulaOntario

MSO Missoula Johnson-Bell Field - ONT Ontario

MSOONT

Missoula Johnson-Bell Field

Tue 8/25

1:12 pm-12:03 pm

2 stops23h 51m

Ontario

Fri 8/28

12:59 pm-12:48 pm

2 stops22h 49m

$681

MissoulaOntario

MSO Missoula Johnson-Bell Field - ONT Ontario

MSOONT

Missoula Johnson-Bell Field

Fri 8/28

1:12 pm-12:03 pm

2 stops23h 51m

Ontario

Sun 8/30

8:01 pm-12:48 pm

2 stops15h 47m

$707

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Los Angeles from

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?

Prices are currently typical for flights on this route.

Typical prices usually range from $360 to $400.
The lowest price recently found on this route was $385.

What is the cheapest month to fly to Ontario?

In general, June 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 $0. If you aren’t able to travel during the month of June, then book flights to Ontario from Missoula during January instead. Flights to Ontario in January, while not as cheap as those in June, still average around $236.

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 25m

Direct flights

None
The fastest flight from Missoula to Ontario takes 4h 25m
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 25m.

  • 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 $155Free CancellationRating
7.8
8,509 reviews
Search Delta flights
Alaska AirlinesPriceFrom $205Free CancellationRating
7.9
12,811 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
10,112 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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 9/14
Mon 9/21
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States