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Cheap flights from Ontario to Missoula from $130

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Missoula departing on 10/8. 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
0 bags

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Find the cheapest flights from Ontario to Missoula

Cheap round-trip flights

Hawaiian Airlines Logo
6:00 am - 12:19 pmONT-MSO
5h 19m1 stop
Hawaiian Airlines Logo
1:59 pm - 8:53 pmMSO-ONT
7h 54m1 stop
$260Hawaiian Airlines
Find Deal
Tue, Oct 28 - Wed, Nov 5
Delta Logo
5:05 pm - 12:31 amONT-MSO
6h 26m1 stop
Delta Logo
6:10 pm - 11:52 pmMSO-ONT
6h 42m1 stop
$261Delta
Find Deal
Wed, Jan 28 - Fri, Feb 6
Delta Logo
11:48 am - 12:17 amONT-MSO
11h 29m2 stops
Delta Logo
6:20 pm - 9:20 pmMSO-ONT
4h 00m1 stop
$266Delta
Find Deal
Tue, Oct 28 - Wed, Nov 5
Multiple Airlines Logo
5:45 pm - 11:59 pmONT-MSO
5h 14m1 stop
Multiple Airlines Logo
5:30 am - 12:07 amMSO-ONT
19h 37m2 stops
$283Multiple Airlines
Find Deal
Wed, Oct 22 - Sun, Oct 26
Alaska Airlines Logo
11:30 am - 5:56 pmONT-MSO
5h 26m1 stop
Alaska Airlines Logo
6:30 pm - 10:37 pmMSO-ONT
5h 07m1 stop
$286Alaska Airlines
Find Deal
Wed, Jan 28 - Sat, Feb 7
Alaska Airlines Logo
3:06 pm - 12:27 amONT-MSO
8h 21m1 stop
Alaska Airlines Logo
4:12 pm - 12:03 amMSO-ONT
8h 51m1 stop
$290Alaska Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 8
Frontier Logo
4:17 pm - 11:55 amONT-MSO
18h 38m2 stops
Frontier Logo
12:50 pm - 11:50 pmMSO-ONT
12h 00m1 stop
$347Frontier
Find Deal
Thu, Oct 16 - Mon, Oct 20
United Airlines Logo
1:20 pm - 9:51 pmONT-MSO
7h 31m1 stop
United Airlines Logo
2:37 pm - 8:58 pmMSO-ONT
7h 21m1 stop
$403United Airlines
Find Deal
Fri, Jan 30 - Sun, Feb 8
United Airlines Logo
5:05 am - 1:35 pmONT-MSO
7h 30m1 stop
United Airlines Logo
5:15 pm - 12:14 pmMSO-ONT
19h 59m2 stops
$418United Airlines
Find Deal
Mon, Feb 2 - Fri, Feb 6
Multiple Airlines Logo
6:00 am - 3:18 pmONT-MSO
8h 18m1 stop
Multiple Airlines Logo
6:37 am - 7:17 amMSO-ONT
25h 40m2 stops
$496Multiple Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5

Hawaiian Airlines flights from Ontario to Missoula

Our best Hawaiian Airlines deals on Ontario to Missoula flight tickets
Hawaiian Airlines
Oct 28
ONT6:00 amOntario
5h 19m
1 stop
MSO12:19 pmMissoula Johnson-Bell Field
Nov 5
MSO1:59 pmMissoula Johnson-Bell Field
7h 54m
1 stop
ONT8:53 pmOntario
$260
Find similar
Hawaiian Airlines
Oct 8
ONT6:00 amOntario
5h 18m
1 stop
MSO12:18 pmMissoula Johnson-Bell Field
Oct 18
MSO6:37 amMissoula Johnson-Bell Field
7h 00m
1 stop
ONT12:37 pmOntario
$281
Find similar
Hawaiian Airlines
Oct 16
ONT6:00 amOntario
5h 18m
1 stop
MSO12:18 pmMissoula Johnson-Bell Field
Oct 20
MSO6:40 pmMissoula Johnson-Bell Field
6h 23m
1 stop
ONT12:03 amOntario
$295
Find similar

Delta flights from Ontario to Missoula

Our best Delta deals on Ontario to Missoula flight tickets
Delta
Jan 28
ONT5:05 pmOntario
6h 26m
1 stop
MSO12:31 amMissoula Johnson-Bell Field
Feb 6
MSO6:10 pmMissoula Johnson-Bell Field
6h 42m
1 stop
ONT11:52 pmOntario
$261
Find similar
Delta
Oct 28
ONT11:48 amOntario
11h 29m
2 stops
MSO12:17 amMissoula Johnson-Bell Field
Nov 5
MSO6:20 pmMissoula Johnson-Bell Field
4h 00m
1 stop
ONT9:20 pmOntario
$266
Find similar
Delta
Jan 31
ONT6:00 amOntario
5h 43m
1 stop
MSO12:43 pmMissoula Johnson-Bell Field
Feb 6
MSO6:10 pmMissoula Johnson-Bell Field
6h 42m
1 stop
ONT11:52 pmOntario
$287
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Missoula 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 September 16, 2025.
Use the filters below to find and compare flights from Ontario to Missoula that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Tue 10/28

6:00 am-12:19 pm

1 stop5h 19m

Missoula Johnson-Bell Field

Wed 11/5

1:59 pm-8:53 pm

1 stop7h 54m

$260

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Wed 1/28

5:05 pm-12:31 am

1 stop6h 26m

Missoula Johnson-Bell Field

Fri 2/6

6:10 pm-11:52 pm

1 stop6h 42m

$261

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Tue 10/28

11:48 am-12:17 am

2 stops11h 29m

Missoula Johnson-Bell Field

Wed 11/5

6:20 pm-9:20 pm

1 stop4h 00m

$266

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Wed 10/22

5:45 pm-11:59 pm

1 stop5h 14m

Missoula Johnson-Bell Field

Sun 10/26

5:30 am-12:07 am

2 stops19h 37m

$283

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Wed 1/28

11:30 am-5:56 pm

1 stop5h 26m

Missoula Johnson-Bell Field

Sat 2/7

6:30 pm-10:37 pm

1 stop5h 07m

$286

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Wed 10/1

3:06 pm-12:27 am

1 stop8h 21m

Missoula Johnson-Bell Field

Wed 10/8

4:12 pm-12:03 am

1 stop8h 51m

$290

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Thu 10/16

4:17 pm-11:55 am

2 stops18h 38m

Missoula Johnson-Bell Field

Mon 10/20

12:50 pm-11:50 pm

1 stop12h 00m

$347

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Fri 1/30

1:20 pm-9:51 pm

1 stop7h 31m

Missoula Johnson-Bell Field

Sun 2/8

2:37 pm-8:58 pm

1 stop7h 21m

$403

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Mon 2/2

5:05 am-1:35 pm

1 stop7h 30m

Missoula Johnson-Bell Field

Fri 2/6

5:15 pm-12:14 pm

2 stops19h 59m

$418

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Fri 10/3

6:00 am-3:18 pm

1 stop8h 18m

Missoula Johnson-Bell Field

Sun 10/5

6:37 am-7:17 am

2 stops25h 40m

$496

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Missoula from

How to get the cheapest flight ticket from Ontario to Missoula

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 Missoula?

The month of January is, on average, the cheapest month to fly to Missoula from Ontario, with most prices found around $264. If you are unable to visit Missoula during the month of January, then departing from Ontario during the month April is also very affordable. Most momondo users find prices during this month for around $274.

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

On average, the least expensive day to fly to Missoula from Ontario is on a Saturday. momondo users have found tickets for Saturday departures for as low as $337. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $478.

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

The cheapest time of day to fly to Missoula is in the evening when flights can be purchased for as low as $420. Flights in the afternoon are often more expensive with an average ticket price of $498.

When to book flights from Ontario to Missoula

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

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

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

Direct flights

None
There are no direct flights from Ontario to Missoula. There are no popular flight routes from Ontario to Missoula.
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  • How far is Ontario to Missoula Johnson-Bell Field by plane?

    There are 904.7 mi between Ontario and Missoula Johnson-Bell Field. 5h 10m is a normal flight duration for this route.

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

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

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

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

  • What documentation or ID do you need to fly to Missoula Johnson-Bell Field Airport?

    The travel and health documents you'll need for your trip to Missoula Johnson-Bell Field 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 Missoula Johnson-Bell Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Ontario to Missoula

Compare and see reviews for airlines that fly from Ontario to Missoula with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $198Free CancellationRating
7.9
7,957 reviews
Search Delta flights
Alaska AirlinesPriceFrom $273Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Missoula. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Ontario to Missoula flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Missoula.

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

If you are not ready to book a flight from Ontario to Missoula now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Missoula and let you know when they change.

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