HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montana

$118+ Cheap flights from Ontario (ONT) to Montana

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BZN
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Montana with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Montana

Keep the following information in mind while searching for Ontario to Montana flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$246
(Hawaiian Airlines)

One-way from

$118
(Hawaiian Airlines)

Popular in

November

Cheapest in

May

Average price

$389
Provider with most accurate pricing for Los Angeles-Bozeman Gallatin Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Bozeman Gallatin Field flights.
Search Deals
From Ontario to Montana
Search Deals
One-way flight from Ontario to Montana
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($84 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Ontario to Montana

Cheapest flights from Ontario to Montana
Explore the most affordable flight options available from Ontario to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 4/26:00 amONT - FCA
1 stop5h 04mHawaiian Airlines
Sun 4/66:14 pmFCA - ONT
1 stop6h 45mHawaiian Airlines
Deal found 2/19$246
This Delta deal was found by Cheapflights users on 2/19. 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.
Sun 4/66:00 amONT - MSO
1 stop4h 19mDelta
Tue 4/85:55 pmMSO - ONT
1 stop6h 57mDelta
Deal found 2/19$247
This Southwest deal was found by Cheapflights users on 2/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/295:45 amONT - BZN
1 stop6h 50mSouthwest
Fri 5/21:05 pmBZN - ONT
1 stop6h 45mSouthwest
Deal found 2/19$247
This Hawaiian Airlines deal was found by Cheapflights users on 2/18. 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.
Wed 4/237:00 amONT - BZN
1 stop6h 15mHawaiian Airlines
Wed 4/302:54 pmBZN - ONT
1 stop6h 35mHawaiian Airlines
Deal found 2/18$271
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 4/186:55 amONT - MSO
1 stop7h 36mAlaska Airlines
Tue 4/226:36 pmMSO - ONT
1 stop17h 15mAlaska Airlines
Deal found 2/20$279
This Alaska Airlines deal was found by Cheapflights users on 2/18. 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.
Tue 4/156:00 amONT - BZN
1 stop6h 59mAlaska Airlines
Sat 4/192:51 pmBZN - ONT
2 stops10h 08mAlaska Airlines
Deal found 2/18$283
This Delta deal was found by Cheapflights users on 2/20. 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.
Sat 8/95:05 pmONT - FCA
1 stop4h 54mDelta
Thu 8/145:25 amFCA - ONT
1 stop4h 33mDelta
Deal found 2/20$289
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 4/26:55 amONT - FCA
2 stops15h 48mAlaska Airlines
Sun 4/66:14 pmFCA - ONT
1 stop6h 45mAlaska Airlines
Deal found 2/19$295
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 4/186:55 amONT - BIL
1 stop6h 20mAlaska Airlines
Sun 4/202:55 pmBIL - ONT
1 stop10h 04mAlaska Airlines
Deal found 2/20$299
This United Airlines deal was found by Cheapflights users on 2/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/95:00 amONT - BZN
1 stop7h 01mUnited Airlines
Wed 4/162:10 pmBZN - ONT
1 stop7h 32mUnited Airlines
Deal found 2/18$307
This Hawaiian Airlines deal was found by Cheapflights users on 2/19. 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.
Tue 4/296:00 amONT - MSO
1 stop6h 58mHawaiian Airlines
Fri 5/26:36 pmMSO - ONT
1 stop6h 23mHawaiian Airlines
Deal found 2/19$310
This Delta deal was found by Cheapflights users on 2/18. 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.
Fri 3/145:15 pmONT - BZN
1 stop5h 53mDelta
Tue 3/186:30 pmBZN - ONT
1 stop6h 26mDelta
Deal found 2/18$318

Find flights from Ontario to Montana within your budget

Customize your flight search to find flights from Ontario to Montana 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 February 20, 2025.

Fly from

Ontario

Fly to

Montana

Route

Depart

Return

Price

OntarioKalispell

ONT - FCA

ONTFCA

Ontario

Wed 4/2

6:00 am-12:04 pm

1 stop5h 04m

Kalispell Glacier Park

Sun 4/6

6:14 pm-11:59 pm

1 stop6h 45m

$246

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Sun 4/6

6:00 am-11:19 am

1 stop4h 19m

Missoula Johnson-Bell Field

Tue 4/8

5:55 pm-11:52 pm

1 stop6h 57m

$247

OntarioBozeman

ONT - BZN

ONTBZN

Ontario

Tue 4/29

5:45 am-1:35 pm

1 stop6h 50m

Bozeman Gallatin Field

Fri 5/2

1:05 pm-6:50 pm

1 stop6h 45m

$247

OntarioKalispell

ONT - FCA

ONTFCA

Ontario

Sat 3/22

6:00 am-11:40 am

1 stop4h 40m

Kalispell Glacier Park

Sat 3/29

5:55 pm-9:47 pm

1 stop4h 52m

$267

OntarioBozeman

ONT - BZN

ONTBZN

Ontario

Wed 4/23

7:00 am-2:15 pm

1 stop6h 15m

Bozeman Gallatin Field

Wed 4/30

2:54 pm-8:29 pm

1 stop6h 35m

$271

OntarioMissoula

ONT - MSO

ONTMSO

Ontario

Fri 4/18

6:55 am-3:31 pm

1 stop7h 36m

Missoula Johnson-Bell Field

Tue 4/22

6:36 pm-10:51 am

1 stop17h 15m

$279

OntarioBozeman

ONT - BZN

ONTBZN

Ontario

Tue 4/15

6:00 am-1:59 pm

1 stop6h 59m

Bozeman Gallatin Field

Sat 4/19

2:51 pm-11:59 pm

2 stops10h 08m

$283

OntarioKalispell

ONT - FCA

ONTFCA

Ontario

Wed 4/2

6:55 am-11:43 pm

2 stops15h 48m

Kalispell Glacier Park

Sun 4/6

6:14 pm-11:59 pm

1 stop6h 45m

$295

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Fri 4/18

6:55 am-2:15 pm

1 stop6h 20m

Billings Logan Intl

Sun 4/20

2:55 pm-11:59 pm

1 stop10h 04m

$299

OntarioBozeman

ONT - BZN

ONTBZN

Ontario

Wed 4/9

5:00 am-1:01 pm

1 stop7h 01m

Bozeman Gallatin Field

Wed 4/16

2:10 pm-8:42 pm

1 stop7h 32m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 52 results
1
2
3
...
6

Best time to book a flight from Ontario to Montana

Have a flexible travel schedule? Discover the best time to fly to Montana 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.

Travel insights for flights from Ontario to Montana

Get recent, data-driven insights about flights from Ontario to Montana including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Ontario to Montana (average of $371). Flying from Ontario to Montana in June is currently the most expensive (average of $520). 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 MT?

Find hourly flight availability from Ontario to Montana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Montana as you normally would.

Rainfall in Montana by month

Plan your trip to Montana by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Montana ranges from 0.4 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Montana when rainfall is around 0.4 in.

Temperature in Montana by month

Plan your trip to Montana by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Montana, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

Reviews of airlines servicing Montana

Get insights into the airlines that provide service to Montana. 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 Montana. Reviews last updated February 20, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Ontario to Montana. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

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

  • What airport do you fly from for flights from Ontario to Montana?

    For a flight from Ontario to Montana, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • What are the cheapest airlines to fly from Ontario to Montana one-way?

    One-way options have recently been found by users for as low as $118 on Hawaiian Airlines. Other airlines that offer cheap prices include Alaska Airlines from $128 and Delta from $129 one-way.

  • What are the most popular routes from Ontario to Montana?

    When deciding which route to take from Ontario to Montana consider Ontario - Bozeman Gallatin Field, Ontario - Kalispell Glacier Park or Ontario - Missoula Johnson-Bell Field as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Montana 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 Montana?

    Currently, October is the cheapest month in which you can book a flight from Ontario to Montana (average of $371). Flying from Ontario to Montana in June is currently the most expensive (average of $520). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Montana

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
Los Angeles to Newark flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Seattle flights
San Francisco to Newark flights
San Francisco to Seattle flights
San Francisco to Las Vegas flights
Los Angeles to Miami flights
Los Angeles to LaGuardia flights
Los Angeles to Dallas/Fort Worth flights
Los Angeles to O'Hare Intl flights
Los Angeles to Honolulu flights
San Jose to Las Vegas flights
San Francisco to Los Angeles flights
Los Angeles to Orlando flights
Los Angeles to Las Vegas flights
Santa Ana to Las Vegas flights
Los Angeles to Fort Lauderdale flights
Oakland to Las Vegas flights
Burbank to Las Vegas flights
Oakland to Los Angeles flights
Los Angeles to Sky Harbor Intl flights
Los Angeles to San Francisco flights
San Francisco to Honolulu flights
Los Angeles to Reagan-National flights
San Francisco to O'Hare Intl flights
Los Angeles to Dulles Intl flights
Los Angeles to Boston flights
San Jose to Los Angeles flights
San Francisco to Ontario flights
San Francisco to LaGuardia flights
Burbank to Dallas/Fort Worth flights
Burbank to Newark flights
Los Angeles to Hobby flights
Los Angeles to Baltimore flights
Los Angeles to Oakland flights
Los Angeles to Austin flights
San Diego to Seattle flights
Ontario to Seattle flights
Los Angeles to Nashville flights
Santa Ana to Dallas/Fort Worth flights
Santa Ana to Newark flights
Los Angeles to San Jose flights
San Francisco to Dulles Intl flights
Los Angeles to Portland flights
Los Angeles to New Orleans flights
San Francisco to Sky Harbor Intl flights
San Francisco to Dallas/Fort Worth flights
San Francisco to Miami flights
Ontario to Honolulu flights

Top 5 airlines flying from Ontario to Montana

Discover the top 5 airlines that operate flights from Ontario to Montana. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$168Average$254FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$219Average$401FlexibilityNo cancel feeOn-time75%
DeltaCheapest$223Average$459FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$250Average$510FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$256Average$398FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.