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 31% of people opting to fly with this airline when traveling to Missoula. Keep in mind that there are 6 different airlines that fly to Missoula on a routine basis, so you have a few additional options to choose from.

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

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

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 March 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.

$161 Cheap Flights from Ontario to Missoula in 2026

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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.

8:59 pm - 8:04 pm

ONT

MSO

22h 05m

1 stop

8:54 pm - 6:49 pm

MSO

ONT

22h 55m

1 stop

$258Multiple Airlines

Thu, Apr 23 - Mon, Apr 27

10:27 pm - 8:04 pm

ONT

MSO

20h 37m

1 stop

8:54 pm - 10:44 am

MSO

ONT

14h 50m

1 stop

$305Multiple Airlines

Thu, Apr 9 - Mon, Apr 13

7:00 am - 1:13 pm

ONT

MSO

5h 13m

1 stop

3:55 pm - 10:32 pm

MSO

ONT

7h 37m

1 stop

$321Alaska Airlines

Tue, Apr 21 - Tue, Apr 28

6:00 am - 12:34 pm

ONT

MSO

5h 34m

1 stop

5:30 am - 8:53 am

MSO

ONT

4h 23m

1 stop

$324Delta

Sun, May 10 - Mon, May 18

6:00 am - 12:28 pm

ONT

MSO

5h 28m

1 stop

3:55 pm - 9:45 am

MSO

ONT

18h 50m

1 stop

$325Alaska Airlines

Tue, May 5 - Sat, May 9

2:00 pm - 12:24 am

ONT

MSO

9h 24m

2 stops

5:40 am - 9:01 am

MSO

ONT

4h 21m

1 stop

$326Delta

Wed, Jun 10 - Mon, Jun 15

5:59 pm - 11:11 pm

ONT

MSO

4h 12m

1 stop

6:05 pm - 11:34 pm

MSO

ONT

6h 29m

1 stop

$329Delta

Sat, May 2 - Thu, May 7

8:59 pm - 8:04 pm

ONT

MSO

22h 05m

1 stop

8:54 pm - 11:55 pm

MSO

ONT

28h 01m

2 stops

$331Multiple Airlines

Thu, Apr 23 - Mon, Apr 27

2:20 pm - 11:11 pm

ONT

MSO

7h 51m

2 stops

6:05 pm - 11:34 pm

MSO

ONT

6h 29m

1 stop

$334Delta

Sat, May 2 - Thu, May 7

6:00 am - 12:41 pm

ONT

MSO

5h 41m

1 stop

6:18 pm - 11:44 pm

MSO

ONT

6h 26m

1 stop

$345Delta

Wed, Apr 22 - Sun, Apr 26

Alaska Airlines flights from Ontario to Missoula

Our best Alaska Airlines deals on Ontario to Missoula flight tickets

Alaska Airlines

Apr 21

ONT7:00 amOntario

5h 13m

1 stop

MSO1:13 pmMissoula Johnson-Bell Field

Apr 28

MSO3:55 pmMissoula Johnson-Bell Field

7h 37m

1 stop

ONT10:32 pmOntario

$321

Alaska Airlines

May 5

ONT6:00 amOntario

5h 28m

1 stop

MSO12:28 pmMissoula Johnson-Bell Field

May 9

MSO3:55 pmMissoula Johnson-Bell Field

18h 50m

1 stop

ONT9:45 amOntario

$325

Alaska Airlines

Apr 23

ONT7:59 pmOntario

18h 00m

1 stop

MSO2:59 pmMissoula Johnson-Bell Field

Apr 26

MSO3:55 pmMissoula Johnson-Bell Field

18h 50m

1 stop

ONT9:45 amOntario

$355

Delta flights from Ontario to Missoula

Our best Delta deals on Ontario to Missoula flight tickets

Delta

May 10

ONT6:00 amOntario

5h 34m

1 stop

MSO12:34 pmMissoula Johnson-Bell Field

May 18

MSO5:30 amMissoula Johnson-Bell Field

4h 23m

1 stop

ONT8:53 amOntario

$324

Delta

Jun 10

ONT2:00 pmOntario

9h 24m

2 stops

MSO12:24 amMissoula Johnson-Bell Field

Jun 15

MSO5:40 amMissoula Johnson-Bell Field

4h 21m

1 stop

ONT9:01 amOntario

$326

Delta

May 2

ONT5:59 pmOntario

4h 12m

1 stop

MSO11:11 pmMissoula Johnson-Bell Field

May 7

MSO6:05 pmMissoula Johnson-Bell Field

6h 29m

1 stop

ONT11:34 pmOntario

$329

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Thu 4/23

8:59 pm-8:04 pm

1 stop22h 05m

Missoula Johnson-Bell Field

Mon 4/27

8:54 pm-6:49 pm

1 stop22h 55m

$258

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Thu 4/9

10:27 pm-8:04 pm

1 stop20h 37m

Missoula Johnson-Bell Field

Mon 4/13

8:54 pm-10:44 am

1 stop14h 50m

$305

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Tue 4/21

7:00 am-1:13 pm

1 stop5h 13m

Missoula Johnson-Bell Field

Tue 4/28

3:55 pm-10:32 pm

1 stop7h 37m

$321

Quickest round-trip

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Sun 5/10

6:00 am-12:34 pm

1 stop5h 34m

Missoula Johnson-Bell Field

Mon 5/18

5:30 am-8:53 am

1 stop4h 23m

$324

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Tue 5/5

6:00 am-12:28 pm

1 stop5h 28m

Missoula Johnson-Bell Field

Sat 5/9

3:55 pm-9:45 am

1 stop18h 50m

$325

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Wed 6/10

2:00 pm-12:24 am

2 stops9h 24m

Missoula Johnson-Bell Field

Mon 6/15

5:40 am-9:01 am

1 stop4h 21m

$326

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Sat 5/2

5:59 pm-11:11 pm

1 stop4h 12m

Missoula Johnson-Bell Field

Thu 5/7

6:05 pm-11:34 pm

1 stop6h 29m

$329

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Thu 4/23

8:59 pm-8:04 pm

1 stop22h 05m

Missoula Johnson-Bell Field

Mon 4/27

8:54 pm-11:55 pm

2 stops28h 01m

$331

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Sat 5/2

2:20 pm-11:11 pm

2 stops7h 51m

Missoula Johnson-Bell Field

Thu 5/7

6:05 pm-11:34 pm

1 stop6h 29m

$334

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Wed 4/22

6:00 am-12:41 pm

1 stop5h 41m

Missoula Johnson-Bell Field

Sun 4/26

6:18 pm-11:44 pm

1 stop6h 26m

$345

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 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 $276. 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 $511.

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 $397.

How have Ontario to Missoula flight prices changed over time?

As of March 2026, prices for Ontario to Missoula flights are approximately 46% 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	4h 56m
Direct flights	None

The fastest flight from Ontario to Missoula takes 4h 56m

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

Search flight deals

How far is Ontario to Missoula Johnson-Bell Field by plane?
There are 904.7 mi between Ontario and Missoula Johnson-Bell Field. 4h 56m 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 March 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 (65% of total bookings). The next most popular airline is Delta (35%).

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
Delta	PriceFrom $240	Free Cancellation	Rating 7.9 8,318 reviews		Search Delta flights
Alaska Airlines	PriceFrom $244	Free Cancellation	Rating 7.9 12,098 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.