What is the cheapest airline that flies from Ontario to Missoula Johnson-Bell Field?

Delta and Alaska Airlines are the most popular carriers operating from Ontario to Missoula Johnson-Bell Field

What airlines fly to Missoula?

Alaska Airlines, United Airlines and American Airlines are the top three most popular airlines that fly to Missoula from Ontario according to our data. Alaska Airlines is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Missoula. Keep in mind that there are 5 different airlines that fly to Missoula on a routine basis, so you have a few additional options to choose from.

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?

As of June 2026, there are 3 operators available to choose from 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.

$92 Cheap Flights from Ontario to Missoula in 2026

Q: What is the typical price of a round-trip flight between Ontario and Missoula?

Prices are currently low for flights on this route. Typical prices usually range from $379 to $788. The lowest price recently found on this route was $310.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Missoula

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:58 pm - 8:59 pm

ONT

MSO

5h 01m

1 stop

9:49 pm - 10:21 am

MSO

ONT

13h 32m

1 stop

$310Multiple Airlines

Thu, Sep 17 - Sun, Sep 20

5:05 pm - 12:18 am

ONT

MSO

6h 13m

1 stop

5:30 am - 8:52 am

MSO

ONT

4h 22m

1 stop

$311Delta

Mon, Aug 10 - Wed, Aug 12

5:05 pm - 12:18 am

ONT

MSO

6h 13m

1 stop

5:30 am - 8:52 am

MSO

ONT

4h 22m

1 stop

$312Delta

Thu, Aug 6 - Wed, Aug 12

5:05 pm - 12:18 am

ONT

MSO

6h 13m

1 stop

5:30 am - 8:52 am

MSO

ONT

4h 22m

1 stop

$321Delta

Mon, Aug 10 - Fri, Aug 21

2:58 pm - 8:59 pm

ONT

MSO

5h 01m

1 stop

9:49 pm - 10:21 am

MSO

ONT

13h 32m

1 stop

$327Multiple Airlines

Sun, Sep 20 - Thu, Sep 24

3:14 pm - 11:01 pm

ONT

MSO

6h 47m

1 stop

4:16 pm - 11:24 pm

MSO

ONT

8h 08m

1 stop

$336Alaska Airlines

Thu, Sep 24 - Mon, Sep 28

5:05 pm - 12:18 am

ONT

MSO

6h 13m

1 stop

5:30 am - 8:52 am

MSO

ONT

4h 22m

1 stop

$346Delta

Thu, Aug 13 - Fri, Aug 21

11:16 am - 8:59 pm

ONT

MSO

8h 43m

1 stop

9:49 pm - 2:00 pm

MSO

ONT

17h 11m

2 stops

$354Multiple Airlines

Thu, Sep 17 - Sun, Sep 20

12:12 pm - 11:01 pm

ONT

MSO

9h 49m

1 stop

7:00 am - 11:16 am

MSO

ONT

5h 16m

1 stop

$361Alaska Airlines

Wed, Sep 23 - Sun, Sep 27

9:40 am - 5:45 pm

ONT

MSO

7h 05m

1 stop

5:35 am - 8:47 am

MSO

ONT

4h 12m

1 stop

$371Delta

Sun, Jul 26 - Fri, Jul 31

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United Airlines flights from Ontario to Missoula

Our best United Airlines deals on Ontario to Missoula flight tickets

United Airlines

Aug 9

ONT5:00 amOntario

7h 31m

1 stop

MSO1:31 pmMissoula Johnson-Bell Field

Aug 20

MSO4:11 pmMissoula Johnson-Bell Field

4h 50m

1 stop

ONT8:01 pmOntario

$401

United Airlines

Aug 15

ONT1:18 pmOntario

7h 13m

1 stop

MSO9:31 pmMissoula Johnson-Bell Field

Aug 20

MSO6:15 amMissoula Johnson-Bell Field

7h 35m

1 stop

ONT12:50 pmOntario

$476

United Airlines

Jun 21

ONT5:00 amOntario

7h 24m

1 stop

MSO1:24 pmMissoula Johnson-Bell Field

Jun 28

MSO6:05 amMissoula Johnson-Bell Field

7h 42m

1 stop

ONT12:47 pmOntario

$668

Alaska Airlines flights from Ontario to Missoula

Our best Alaska Airlines deals on Ontario to Missoula flight tickets

Alaska Airlines

Aug 26

ONT6:02 amOntario

8h 15m

1 stop

MSO3:17 pmMissoula Johnson-Bell Field

Aug 29

MSO7:15 amMissoula Johnson-Bell Field

9h 37m

2 stops

ONT3:52 pmOntario

$387

Alaska Airlines

Aug 27

ONT7:59 pmOntario

18h 18m

1 stop

MSO3:17 pmMissoula Johnson-Bell Field

Sep 10

MSO4:16 pmMissoula Johnson-Bell Field

8h 08m

1 stop

ONT11:24 pmOntario

$402

Alaska Airlines

Aug 29

ONT6:02 amOntario

8h 15m

1 stop

MSO3:17 pmMissoula Johnson-Bell Field

Sep 2

MSO7:15 amMissoula Johnson-Bell Field

7h 54m

1 stop

ONT2:09 pmOntario

$421

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Thu 9/17

2:58 pm-8:59 pm

1 stop5h 01m

Missoula Johnson-Bell Field

Sun 9/20

9:49 pm-10:21 am

1 stop13h 32m

$310

Quickest round-trip

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Mon 8/10

5:05 pm-12:18 am

1 stop6h 13m

Missoula Johnson-Bell Field

Wed 8/12

5:30 am-8:52 am

1 stop4h 22m

$311

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Thu 8/6

5:05 pm-12:18 am

1 stop6h 13m

Missoula Johnson-Bell Field

Wed 8/12

5:30 am-8:52 am

1 stop4h 22m

$312

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Mon 8/10

5:05 pm-12:18 am

1 stop6h 13m

Missoula Johnson-Bell Field

Fri 8/21

5:30 am-8:52 am

1 stop4h 22m

$321

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Sun 9/20

2:58 pm-8:59 pm

1 stop5h 01m

Missoula Johnson-Bell Field

Thu 9/24

9:49 pm-10:21 am

1 stop13h 32m

$327

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Thu 9/24

3:14 pm-11:01 pm

1 stop6h 47m

Missoula Johnson-Bell Field

Mon 9/28

4:16 pm-11:24 pm

1 stop8h 08m

$336

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Thu 8/13

5:05 pm-12:18 am

1 stop6h 13m

Missoula Johnson-Bell Field

Fri 8/21

5:30 am-8:52 am

1 stop4h 22m

$346

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Thu 9/17

11:16 am-8:59 pm

1 stop8h 43m

Missoula Johnson-Bell Field

Sun 9/20

9:49 pm-2:00 pm

2 stops17h 11m

$354

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Wed 9/23

12:12 pm-11:01 pm

1 stop9h 49m

Missoula Johnson-Bell Field

Sun 9/27

7:00 am-11:16 am

1 stop5h 16m

$361

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Sun 7/26

9:40 am-5:45 pm

1 stop7h 05m

Missoula Johnson-Bell Field

Fri 7/31

5:35 am-8:47 am

1 stop4h 12m

$371

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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

What is the cheapest month to fly to Missoula?

The month of October is, on average, the cheapest month to fly to Missoula from Ontario, with most prices found around $260. If you are unable to visit Missoula during the month of October, then departing from Ontario during the month February is also very affordable. Most momondo users find prices during this month for around $294.

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 Sunday. momondo users have found tickets for Sunday departures for as low as $331. 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 $495.

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 afternoon when flights can be purchased for as low as $229. Flights at noon are often more expensive with an average ticket price of $394.

How have Ontario to Missoula flight prices changed over time?

As of June 2026, prices for Ontario to Missoula flights are approximately 40% cheaper when compared to flights at the same time last year.

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

Fastest flight time	4h 13m
Direct flights	None

The fastest flight from Ontario to Missoula takes 4h 13m

There are no direct flights from Ontario to Missoula. There are no popular flight routes from Ontario to Missoula.

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Frequently asked questions about flying from Ontario to Missoula

How far is Ontario to Missoula Johnson-Bell Field by plane?
There are 904.7 mi between Ontario and Missoula Johnson-Bell Field. 4h 13m 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?
As of June 2026, there are 3 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ontario to Missoula is Alaska Airlines (57% of total bookings). The next most popular airlines are Delta (27%) and United Airlines (16%).

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
Alaska Airlines	PriceFrom $182	Free Cancellation	Rating 7.9 12,539 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $239	Free Cancellation	Rating 7.4 9,861 reviews	Search United Airlines flights
Delta	PriceFrom $240	Free Cancellation	Rating 7.8 8,414 reviews	Search Delta 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.