What airlines fly to Missoula?

United Airlines, Alaska Airlines and American Airlines are the top three most popular airlines that fly to Missoula from Ontario according to our data. United 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 5 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?

Alaska Airlines and Delta 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 November 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.

$245 Cheap Flights from Ontario to Missoula in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Missoula

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One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:15 am - 11:25 amONT Ontario-MSO Missoula Johnson-Bell Field

26h 10m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

7:31 pm - 6:11 pmMSO Missoula Johnson-Bell Field-ONT Ontario

23h 40m2 stops Phoenix-Mesa Gateway Las Vegas Harry Reid Intl

$415Multiple Airlines

Wed, Nov 25 - Mon, Nov 30

10:47 pm - 9:17 amONT Ontario-MSO Missoula Johnson-Bell Field

9h 30m1 stop Las Vegas Harry Reid Intl

9:55 pm - 8:30 amMSO Missoula Johnson-Bell Field-ONT Ontario

11h 35m1 stop Las Vegas Harry Reid Intl

$439Multiple Airlines

Sat, Nov 21 - Sat, Nov 28

10:47 pm - 9:17 amONT Ontario-MSO Missoula Johnson-Bell Field

9h 30m1 stop Las Vegas Harry Reid Intl

9:55 pm - 8:30 amMSO Missoula Johnson-Bell Field-ONT Ontario

11h 35m1 stop Las Vegas Harry Reid Intl

$440Multiple Airlines

Sat, Nov 21 - Sat, Nov 28

5:04 pm - 12:37 amONT Ontario-MSO Missoula Johnson-Bell Field

6h 33m1 stop Salt Lake City

5:25 am - 5:15 pmMSO Missoula Johnson-Bell Field-ONT Ontario

12h 50m2 stops Salt Lake City Seattle/Tacoma Intl

$461Delta

Tue, Dec 8 - Wed, Dec 9

6:00 am - 9:22 pmONT Ontario-MSO Missoula Johnson-Bell Field

14h 22m1 stop Seattle/Tacoma Intl

4:12 pm - 10:43 pmMSO Missoula Johnson-Bell Field-ONT Ontario

7h 31m1 stop Seattle/Tacoma Intl

$486Alaska Airlines

Wed, Jan 20 - Sun, Jan 24

5:04 pm - 12:20 amONT Ontario-MSO Missoula Johnson-Bell Field

6h 16m1 stop Salt Lake City

1:19 pm - 10:59 pmMSO Missoula Johnson-Bell Field-ONT Ontario

10h 40m2 stops Salt Lake City Seattle/Tacoma Intl

$486Delta

Fri, Nov 20 - Sat, Dec 5

5:04 pm - 12:20 amONT Ontario-MSO Missoula Johnson-Bell Field

6h 16m1 stop Salt Lake City

1:19 pm - 10:59 pmMSO Missoula Johnson-Bell Field-ONT Ontario

10h 40m2 stops Salt Lake City Seattle/Tacoma Intl

$486Delta

Thu, Nov 19 - Sat, Dec 5

6:00 am - 3:09 pmONT Ontario-MSO Missoula Johnson-Bell Field

8h 09m1 stop Seattle/Tacoma Intl

1:59 pm - 8:03 pmMSO Missoula Johnson-Bell Field-ONT Ontario

7h 04m1 stop Seattle/Tacoma Intl

$489Alaska Airlines

Thu, Dec 17 - Sun, Jan 3

1:40 pm - 9:47 pmONT Ontario-MSO Missoula Johnson-Bell Field

7h 07m1 stop Denver Intl

2:41 pm - 9:11 pmMSO Missoula Johnson-Bell Field-ONT Ontario

7h 30m1 stop Denver Intl

$589United Airlines

Tue, Dec 8 - Fri, Dec 11

1:40 pm - 9:47 pmONT Ontario-MSO Missoula Johnson-Bell Field

7h 07m1 stop Denver Intl

2:41 pm - 9:11 pmMSO Missoula Johnson-Bell Field-ONT Ontario

7h 30m1 stop Denver Intl

$589United Airlines

Wed, Dec 9 - Fri, Dec 11

Cheap last minute flights

Enter your travel dates to find the best prices.

6:00 am - 12:22 pmONT Ontario-MSO Missoula Johnson-Bell Field

5h 22m1 stop Seattle/Tacoma Intl

7:03 am - 11:18 amMSO Missoula Johnson-Bell Field-ONT Ontario

5h 15m1 stop Seattle/Tacoma Intl

$569Alaska Airlines

Thu, Nov 5 - Thu, Nov 12

6:00 am - 12:22 pmONT Ontario-MSO Missoula Johnson-Bell Field

5h 22m1 stop Seattle/Tacoma Intl

7:03 am - 11:18 amMSO Missoula Johnson-Bell Field-ONT Ontario

5h 15m1 stop Seattle/Tacoma Intl

$569Alaska Airlines

Thu, Nov 5 - Tue, Nov 10

5:03 pm - 10:51 pmONT Ontario-MSO Missoula Johnson-Bell Field

4h 48m1 stop Salt Lake City

6:18 pm - 11:49 pmMSO Missoula Johnson-Bell Field-ONT Ontario

6h 31m1 stop Salt Lake City

$569Delta

Sat, Nov 7 - Thu, Nov 12

6:00 am - 12:34 pmONT Ontario-MSO Missoula Johnson-Bell Field

5h 34m1 stop Salt Lake City

6:18 pm - 11:49 pmMSO Missoula Johnson-Bell Field-ONT Ontario

6h 31m1 stop Salt Lake City

$569Delta

Sat, Nov 7 - Wed, Nov 11

5:00 am - 1:31 pmONT Ontario-MSO Missoula Johnson-Bell Field

7h 31m1 stop Denver Intl

6:15 am - 12:33 pmMSO Missoula Johnson-Bell Field-ONT Ontario

7h 18m1 stop Denver Intl

$569United Airlines

Fri, Nov 6 - Wed, Nov 11

10:30 am - 8:15 pmONT Ontario-MSO Missoula Johnson-Bell Field

8h 45m1 stop Dallas/Fort Worth

6:50 am - 1:32 pmMSO Missoula Johnson-Bell Field-ONT Ontario

7h 42m1 stop Dallas/Fort Worth

$569American Airlines

Fri, Nov 6 - Wed, Nov 11

6:00 am - 12:22 pmONT Ontario-MSO Missoula Johnson-Bell Field

5h 22m1 stop Seattle/Tacoma Intl

4:21 pm - 11:06 pmMSO Missoula Johnson-Bell Field-ONT Ontario

7h 45m1 stop Seattle/Tacoma Intl

$569Alaska Airlines

Fri, Nov 6 - Mon, Nov 9

6:00 am - 12:22 pmONT Ontario-MSO Missoula Johnson-Bell Field

5h 22m1 stop Seattle/Tacoma Intl

4:21 pm - 11:06 pmMSO Missoula Johnson-Bell Field-ONT Ontario

7h 45m1 stop Seattle/Tacoma Intl

$569Alaska Airlines

Sat, Nov 7 - Mon, Nov 9

10:30 am - 8:15 pmONT Ontario-MSO Missoula Johnson-Bell Field

8h 45m1 stop Dallas/Fort Worth

6:50 am - 4:19 pmMSO Missoula Johnson-Bell Field-ONT Ontario

10h 29m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

$598American Airlines

Fri, Nov 6 - Tue, Nov 10

10:30 am - 8:40 pmONT Ontario-MSO Missoula Johnson-Bell Field

9h 10m1 stop Dallas/Fort Worth

6:50 am - 6:10 pmMSO Missoula Johnson-Bell Field-ONT Ontario

12h 20m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

$598American Airlines

Sat, Nov 7 - Tue, Nov 10

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Delta flights from Ontario to Missoula

Our best Delta deals on Ontario to Missoula flight tickets

Delta

Dec 8

ONT5:04 pmOntario

6h 33m

1 stop

MSO12:37 amMissoula Johnson-Bell Field

Dec 9

MSO5:25 amMissoula Johnson-Bell Field

12h 50m

2 stops

ONT5:15 pmOntario

$461

Delta

Nov 19

ONT5:04 pmOntario

6h 16m

1 stop

MSO12:20 amMissoula Johnson-Bell Field

Dec 5

MSO1:19 pmMissoula Johnson-Bell Field

10h 40m

2 stops

ONT10:59 pmOntario

$486

Delta

Dec 23

ONT5:05 pmOntario

6h 41m

1 stop

MSO12:46 amMissoula Johnson-Bell Field

Jan 5

MSO6:28 pmMissoula Johnson-Bell Field

6h 30m

1 stop

ONT11:58 pmOntario

$489

Alaska Airlines flights from Ontario to Missoula

Our best Alaska Airlines deals on Ontario to Missoula flight tickets

Alaska Airlines

Jan 20

ONT10:57 amOntario

9h 25m

2 stops

MSO9:22 pmMissoula Johnson-Bell Field

Jan 24

MSO4:12 pmMissoula Johnson-Bell Field

7h 31m

1 stop

ONT10:43 pmOntario

$491

Alaska Airlines

Jan 30

ONT7:10 amOntario

5h 12m

1 stop

MSO1:22 pmMissoula Johnson-Bell Field

Feb 3

MSO7:41 amMissoula Johnson-Bell Field

10h 41m

2 stops

ONT5:22 pmOntario

$496

Alaska Airlines

Jan 30

ONT7:10 amOntario

13h 14m

2 stops

MSO9:24 pmMissoula Johnson-Bell Field

Feb 3

MSO7:41 amMissoula Johnson-Bell Field

10h 41m

2 stops

ONT5:22 pmOntario

$504

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMissoula

ONT Ontario - MSO Missoula Johnson-Bell Field

ONTMSO

Ontario

Wed 11/25

8:15 am-11:25 am

2 stops26h 10m

Missoula Johnson-Bell Field

Mon 11/30

7:31 pm-6:11 pm

2 stops23h 40m

$415

OntarioMissoula

ONT Ontario - MSO Missoula Johnson-Bell Field

ONTMSO

Ontario

Sat 11/21

10:47 pm-9:17 am

1 stop9h 30m

Missoula Johnson-Bell Field

Sat 11/28

9:55 pm-8:30 am

1 stop11h 35m

$439

OntarioMissoula

ONT Ontario - MSO Missoula Johnson-Bell Field

ONTMSO

Ontario

Sat 11/21

10:47 pm-9:17 am

1 stop9h 30m

Missoula Johnson-Bell Field

Sat 11/28

9:55 pm-8:30 am

1 stop11h 35m

$440

OntarioMissoula

ONT Ontario - MSO Missoula Johnson-Bell Field

ONTMSO

Ontario

Tue 12/8

5:04 pm-12:37 am

1 stop6h 33m

Missoula Johnson-Bell Field

Wed 12/9

5:25 am-5:15 pm

2 stops12h 50m

$461

OntarioMissoula

ONT Ontario - MSO Missoula Johnson-Bell Field

ONTMSO

Ontario

Wed 1/20

6:00 am-9:22 pm

1 stop14h 22m

Missoula Johnson-Bell Field

Sun 1/24

4:12 pm-10:43 pm

1 stop7h 31m

$486

OntarioMissoula

ONT Ontario - MSO Missoula Johnson-Bell Field

ONTMSO

Ontario

Fri 11/20

5:04 pm-12:20 am

1 stop6h 16m

Missoula Johnson-Bell Field

Sat 12/5

1:19 pm-10:59 pm

2 stops10h 40m

$486

OntarioMissoula

ONT Ontario - MSO Missoula Johnson-Bell Field

ONTMSO

Ontario

Thu 11/19

5:04 pm-12:20 am

1 stop6h 16m

Missoula Johnson-Bell Field

Sat 12/5

1:19 pm-10:59 pm

2 stops10h 40m

$486

OntarioMissoula

ONT Ontario - MSO Missoula Johnson-Bell Field

ONTMSO

Ontario

Thu 12/17

6:00 am-3:09 pm

1 stop8h 09m

Missoula Johnson-Bell Field

Sun 1/3

1:59 pm-8:03 pm

1 stop7h 04m

$489

Quickest round-trip

OntarioMissoula

ONT Ontario - MSO Missoula Johnson-Bell Field

ONTMSO

Ontario

Tue 12/8

1:40 pm-9:47 pm

1 stop7h 07m

Missoula Johnson-Bell Field

Fri 12/11

2:41 pm-9:11 pm

1 stop7h 30m

$589

OntarioMissoula

ONT Ontario - MSO Missoula Johnson-Bell Field

ONTMSO

Ontario

Wed 12/9

1:40 pm-9:47 pm

1 stop7h 07m

Missoula Johnson-Bell Field

Fri 12/11

2:41 pm-9:11 pm

1 stop7h 30m

$589

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 February is, on average, the cheapest month to fly to Missoula from Ontario, with most prices found around $294. If you are unable to visit Missoula during the month of February, then departing from Ontario during the month January is also very affordable. Most momondo users find prices during this month for around $339.

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 $329. 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 $299. Flights at noon are often more expensive with an average ticket price of $404.

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

Best Price Found	$245
Fastest flight time	5h 36m
Direct flights	None

The best one-way flight to Missoula from Ontario in the past 72 hours is $245. The best round-trip flight deal from Ontario to Missoula found on momondo in the last 72 hours is $415.

The fastest flight from Ontario to Missoula takes 5h 36m

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 36m 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 November 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 (51% of total bookings). The next most popular airlines are Delta (24%) and United Airlines (24%).

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 13,138 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $239	Free Cancellation	Rating 7.3 10,459 reviews	Search United Airlines flights
Delta	PriceFrom $266	Free Cancellation	Rating 7.8 8,696 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.