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Missoula

$130+ Cheap flights from Ontario to Missoula (ONT - MSO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MSO
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from Ontario to Missoula

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Missoula (MSO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 11, 2025.

Round-trip from

$228
(Kiwi.com)

One-way from

$130
(Hawaiian Airlines)

Popular in

February

Cheapest in

January

Average price

$318
From Ontario to Missoula Johnson-Bell Field
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One-way flight from Ontario to Missoula Johnson-Bell Field
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Highest demand for flights based on searches. 11% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Missoula

Cheapest flights from Ontario to Missoula
Explore the most affordable flight options available from Ontario to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/259:16 amONT - MSO
1 stop27h 48mMultiple Airlines
lun. 9/2910:10 pmMSO - ONT
1 stop24h 46mMultiple Airlines
Deal found 9/9$228
This Hawaiian Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/284:11 pmONT - MSO
1 stop6h 32mHawaiian Airlines
mié. 11/54:12 pmMSO - ONT
1 stop5h 41mHawaiian Airlines
Deal found 9/11$260
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/2811:48 amONT - MSO
2 stops11h 29mDelta
mié. 11/56:20 pmMSO - ONT
1 stop4h 00mDelta
Deal found 9/11$266
This Trip.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/66:03 pmONT - MSO
1 stop5h 10mMultiple Airlines
dom. 11/94:12 pmMSO - ONT
1 stop6h 46mMultiple Airlines
Deal found 9/10$278
This KAYAK deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/245:45 pmONT - MSO
1 stop5h 14mAlaska Airlines
lun. 10/276:32 amMSO - ONT
1 stop5h 33mAlaska Airlines
Deal found 9/11$280
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/86:00 amONT - MSO
1 stop5h 18mAlaska Airlines
sáb. 10/184:12 pmMSO - ONT
1 stop8h 51mAlaska Airlines
Deal found 9/11$286
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/16:00 amONT - MSO
1 stop5h 32mAlaska Airlines
mié. 10/84:12 pmMSO - ONT
1 stop8h 51mAlaska Airlines
Deal found 9/11$290
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/186:00 amONT - MSO
1 stop5h 18mAlaska Airlines
mié. 10/222:07 pmMSO - ONT
1 stop5h 26mAlaska Airlines
Deal found 9/11$296
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/174:35 pmONT - MSO
1 stop6h 42mDelta
mar. 10/215:25 amMSO - ONT
1 stop4h 40mDelta
Deal found 9/11$297
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/2411:48 amONT - MSO
2 stops11h 29mDelta
lun. 10/275:25 amMSO - ONT
1 stop4h 40mDelta
Deal found 9/11$302
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/14:40 pmONT - MSO
1 stop6h 38mDelta
dom. 10/55:30 amMSO - ONT
1 stop4h 27mDelta
Deal found 9/9$305

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from Ontario to Missoula that are best for you.

Fly from

Ontario

Fly to

Missoula

Route

Depart

Return

Price

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

jue. 9/25

9:16 am-2:04 pm

1 stop27h 48m

Missoula Johnson-Bell Field

lun. 9/29

10:10 pm-7:54 pm

2 stops22h 44m

$237

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

mar. 10/28

4:11 pm-11:43 pm

1 stop6h 32m

Missoula Johnson-Bell Field

mié. 11/5

5:30 am-9:58 am

1 stop5h 28m

$260

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

mié. 10/8

6:00 am-12:18 pm

1 stop5h 18m

Missoula Johnson-Bell Field

sáb. 10/18

4:12 pm-12:03 am

1 stop8h 51m

$286

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

mié. 10/1

6:00 am-12:32 pm

1 stop5h 32m

Missoula Johnson-Bell Field

mié. 10/8

4:12 pm-12:03 am

1 stop8h 51m

$290

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

jue. 2/26

6:45 am-5:27 pm

2 stops9h 42m

Missoula Johnson-Bell Field

lun. 3/2

6:10 pm-11:52 pm

1 stop6h 42m

$291

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

sáb. 10/18

6:00 am-12:18 pm

1 stop5h 18m

Missoula Johnson-Bell Field

mié. 10/22

2:07 pm-6:33 pm

1 stop5h 26m

$296

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

vie. 10/17

4:35 pm-12:17 am

1 stop6h 42m

Missoula Johnson-Bell Field

mié. 10/22

6:20 pm-11:39 pm

1 stop6h 19m

$297

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

vie. 10/17

4:35 pm-12:17 am

1 stop6h 42m

Missoula Johnson-Bell Field

mar. 10/21

5:25 am-9:05 am

1 stop4h 40m

$297

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

mié. 10/1

4:40 pm-12:18 am

1 stop6h 38m

Missoula Johnson-Bell Field

dom. 10/5

5:30 am-8:57 am

1 stop4h 27m

$305

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

mié. 10/22

5:45 pm-11:59 pm

1 stop5h 14m

$130

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 17 results
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Best time to book a flight from Ontario to Missoula

Have a flexible travel schedule? Discover the best time to fly to Missoula from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Missoula

What is the cheapest month to book a flight from Ontario to Missoula?

Currently, October is the cheapest month in which you can book a flight from Ontario to Missoula (average of $365). Flying from Ontario to Missoula in March is currently the most expensive (average of $505). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to MSO?

Find hourly flight availability from Ontario to Missoula. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Missoula in the evening. If you’re flexible enough to do this you can expect to save up to 55% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Missoula

Get insights into the airlines that provide service to Missoula. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missoula. Reviews last updated septiembre 11, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines and Delta from Ontario to Missoula to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Missoula. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Missoula?

    Hawaiian Airlines and Alaska Airlines can get you from Ontario to Missoula in just under 5h 18m. Your travel time can differ by up to 1h 14m. Airlines will cover a distance of 907 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Ontario to Missoula round-trip?

    Delta, at $198, was found to be the cheapest airline from Ontario to Missoula. An alternate airline flying to your destination would be Alaska Airlines. Delta is priced at 53% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Ontario to Missoula that include hotel bookings?

    Yes. In addition to deals on Ontario to Missoula flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Missoula?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Missoula.

  • Can I find deals for business class flights from Ontario to Missoula?

    Yes. Cheapflights offers flight deals from Ontario to Missoula by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Missoula?

    Currently, October is the cheapest month in which you can book a flight from Ontario to Missoula (average of $365). Flying from Ontario to Missoula in March is currently the most expensive (average of $505). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ontario to Missoula

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Top 2 airlines flying from Ontario to Missoula

Discover the top 2 airlines that operate flights from Ontario to Missoula. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$198Average$284FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$273Average$407FlexibilityNo cancel feeOn-time75%

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