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

Alaska Airlines is the most popular carrier operating from Ontario to Missoula Johnson-Bell Field

What airlines fly to Missoula?

Alaska Airlines, Delta 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 May 2026, there are 2 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.

$76 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 $458 to $349. The lowest price recently found on this route was $301.

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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.

3:12 pm - 10:59 pm

ONT

MSO

6h 47m

1 stop

7:00 am - 2:18 pm

MSO

ONT

8h 18m

1 stop

$301Alaska Airlines

Mon, Sep 21 - Tue, Sep 29

1:35 pm - 12:22 am

ONT

MSO

9h 47m

2 stops

5:31 am - 8:50 am

MSO

ONT

4h 19m

1 stop

$306Delta

Wed, Jun 3 - Wed, Jun 17

4:03 pm - 11:59 pm

ONT

MSO

6h 56m

1 stop

8:02 pm - 11:58 pm

MSO

ONT

4h 56m

1 stop

$311Alaska Airlines

Wed, Jun 3 - Thu, Jun 4

6:00 am - 11:59 pm

ONT

MSO

16h 59m

1 stop

7:45 am - 7:02 pm

MSO

ONT

12h 17m

1 stop

$323Alaska Airlines

Wed, May 27 - Sat, May 30

6:00 am - 12:34 pm

ONT

MSO

5h 34m

1 stop

1:14 pm - 4:17 pm

MSO

ONT

4h 03m

1 stop

$325Delta

Sat, May 30 - Wed, Jun 3

5:55 pm - 11:16 pm

ONT

MSO

4h 21m

1 stop

5:30 am - 12:33 pm

MSO

ONT

8h 03m

2 stops

$330Delta

Sat, May 30 - Thu, Jun 4

4:03 pm - 11:59 pm

ONT

MSO

6h 56m

1 stop

3:39 pm - 11:58 pm

MSO

ONT

9h 19m

1 stop

$336Alaska Airlines

Tue, May 26 - Mon, Jun 1

9:50 am - 5:24 pm

ONT

MSO

6h 34m

1 stop

6:05 pm - 11:34 pm

MSO

ONT

6h 29m

1 stop

$350Delta

Sun, May 31 - Wed, Jun 3

4:57 pm - 12:22 am

ONT

MSO

6h 25m

1 stop

5:31 am - 8:50 am

MSO

ONT

4h 19m

1 stop

$351Delta

Mon, Jun 1 - Fri, Jun 12

4:03 pm - 11:59 pm

ONT

MSO

6h 56m

1 stop

8:02 pm - 11:58 pm

MSO

ONT

4h 56m

1 stop

$355Alaska Airlines

Fri, May 29 - Mon, Jun 1

Alaska Airlines flights from Ontario to Missoula

Our best Alaska Airlines deals on Ontario to Missoula flight tickets

Alaska Airlines

Sep 21

ONT3:12 pmOntario

6h 47m

1 stop

MSO10:59 pmMissoula Johnson-Bell Field

Sep 29

MSO7:00 amMissoula Johnson-Bell Field

8h 18m

1 stop

ONT2:18 pmOntario

$301

Alaska Airlines

Jun 3

ONT4:03 pmOntario

6h 56m

1 stop

MSO11:59 pmMissoula Johnson-Bell Field

Jun 4

MSO8:02 pmMissoula Johnson-Bell Field

4h 56m

1 stop

ONT11:58 pmOntario

$311

Alaska Airlines

May 27

ONT6:00 amOntario

16h 59m

1 stop

MSO11:59 pmMissoula Johnson-Bell Field

May 30

MSO7:45 amMissoula Johnson-Bell Field

12h 17m

1 stop

ONT7:02 pmOntario

$323

American Airlines flights from Ontario to Missoula

Our best American Airlines deals on Ontario to Missoula flight tickets

American Airlines

May 26

ONT12:40 pmOntario

8h 58m

1 stop

MSO10:38 pmMissoula Johnson-Bell Field

Jun 1

MSO2:18 pmMissoula Johnson-Bell Field

9h 20m

1 stop

ONT10:38 pmOntario

$424

American Airlines

May 26

ONT7:12 pmOntario

20h 02m

2 stops

MSO4:14 pmMissoula Johnson-Bell Field

May 30

MSO6:45 amMissoula Johnson-Bell Field

16h 17m

2 stops

ONT10:02 pmOntario

$461

American Airlines

May 19

ONT9:24 amOntario

11h 21m

2 stops

MSO9:45 pmMissoula Johnson-Bell Field

May 22

MSO6:45 amMissoula Johnson-Bell Field

12h 37m

2 stops

ONT6:22 pmOntario

$896

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Mon 9/21

3:12 pm-10:59 pm

1 stop6h 47m

Missoula Johnson-Bell Field

Tue 9/29

7:00 am-2:18 pm

1 stop8h 18m

$301

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Wed 6/3

1:35 pm-12:22 am

2 stops9h 47m

Missoula Johnson-Bell Field

Wed 6/17

5:31 am-8:50 am

1 stop4h 19m

$306

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Wed 6/3

4:03 pm-11:59 pm

1 stop6h 56m

Missoula Johnson-Bell Field

Thu 6/4

8:02 pm-11:58 pm

1 stop4h 56m

$311

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Wed 5/27

6:00 am-11:59 pm

1 stop16h 59m

Missoula Johnson-Bell Field

Sat 5/30

7:45 am-7:02 pm

1 stop12h 17m

$323

Quickest round-trip

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Sat 5/30

6:00 am-12:34 pm

1 stop5h 34m

Missoula Johnson-Bell Field

Wed 6/3

1:14 pm-4:17 pm

1 stop4h 03m

$325

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Sat 5/30

5:55 pm-11:16 pm

1 stop4h 21m

Missoula Johnson-Bell Field

Thu 6/4

5:30 am-12:33 pm

2 stops8h 03m

$330

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Tue 5/26

4:03 pm-11:59 pm

1 stop6h 56m

Missoula Johnson-Bell Field

Mon 6/1

3:39 pm-11:58 pm

1 stop9h 19m

$336

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Sun 5/31

9:50 am-5:24 pm

1 stop6h 34m

Missoula Johnson-Bell Field

Wed 6/3

6:05 pm-11:34 pm

1 stop6h 29m

$350

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Mon 6/1

4:57 pm-12:22 am

1 stop6h 25m

Missoula Johnson-Bell Field

Fri 6/12

5:31 am-8:50 am

1 stop4h 19m

$351

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Fri 5/29

4:03 pm-11:59 pm

1 stop6h 56m

Missoula Johnson-Bell Field

Mon 6/1

8:02 pm-11:58 pm

1 stop4h 56m

$355

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 $275. 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 $289. 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 $471.

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 in the morning are often more expensive with an average ticket price of $385.

How have Ontario to Missoula flight prices changed over time?

As of May 2026, prices for Ontario to Missoula flights are approximately 30% more expensive 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	5h 02m
Direct flights	None

The fastest flight from Ontario to Missoula takes 5h 02m

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

Search flight deals

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. 5h 02m 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 May 2026, there are 2 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 (59% of total bookings). The next most popular airline is Delta (41%).

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 12,345 reviews		Search Alaska Airlines flights
Delta	PriceFrom $240	Free Cancellation	Rating 7.9 8,456 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.