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$110+ Cheap flights from Montana to Ontario (ONT)

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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — ONT
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
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Cheap flight deals from Montana to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Montana (USMT) to Ontario (ONT). 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 December 19, 2024.

Round-trip from

$220
(Alaska Airlines)

One-way from

$110
(Alaska Airlines)
From Montana to Ontario
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One-way flight from Montana to Ontario
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Find flight deals from Montana to Ontario

Cheapest flights from Montana to Ontario
Explore the most affordable flight options available from Montana to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This Delta deal was found by Cheapflights users on 12/19. 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.
Tue 12/315:55 amBZN - ONT
1 stop7h 13mDelta
Sun 1/55:30 amONT - BZN
1 stop4h 45mDelta
Deal found 12/19$409
This Delta deal was found by Cheapflights users on 12/18. 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 12/205:25 amFCA - ONT
1 stop7h 55mDelta
Wed 12/255:30 amONT - FCA
1 stop5h 18mDelta
Deal found 12/18$620
This Delta deal was found by Cheapflights users on 12/18. 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.
Thu 12/266:29 pmMSO - ONT
1 stop6h 59mDelta
Sat 1/44:58 pmONT - MSO
1 stop6h 39mDelta
Deal found 12/18$644
This Alaska Airlines deal was found by Cheapflights users on 12/18. 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.
Sun 12/292:36 pmBIL - ONT
1 stop6h 21mAlaska Airlines
Thu 1/167:00 amONT - BIL
1 stop6h 15mAlaska Airlines
Deal found 12/18$668
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Thu 12/192:36 pmBZN - ONT
1 stop7h 13mUnited Airlines
Sun 12/226:00 amONT - BZN
1 stop7h 36mUnited Airlines
Deal found 12/18$712
This Alaska Airlines deal was found by Cheapflights users on 12/17. 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.
Mon 12/235:40 pmMSO - ONT
1 stop17h 05mAlaska Airlines
Sun 1/58:32 pmONT - MSO
1 stop18h 00mAlaska Airlines
Deal found 12/17$737
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Thu 12/266:30 amMSO - ONT
1 stop7h 10mUnited Airlines
Sat 1/46:00 amONT - MSO
2 stops30h 32mUnited Airlines
Deal found 12/18$754
This Alaska Airlines deal was found by Cheapflights users on 12/19. 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.
Mon 12/3011:23 amBZN - ONT
2 stops13h 36mAlaska Airlines
Sun 1/58:32 pmONT - BZN
1 stop18h 40mAlaska Airlines
Deal found 12/19$854
This United Airlines deal was found by Cheapflights users on 12/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/242:40 pmBIL - ONT
1 stop7h 09mUnited Airlines
Mon 12/305:05 amONT - BIL
1 stop7h 09mUnited Airlines
Deal found 12/19$880
This Alaska Airlines deal was found by Cheapflights users on 12/18. 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.
Fri 12/206:00 amFCA - ONT
2 stops28h 45mAlaska Airlines
Wed 12/256:00 amONT - FCA
1 stop16h 59mAlaska Airlines
Deal found 12/18$893
This United Airlines deal was found by Cheapflights users on 12/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/222:25 pmHLN - ONT
1 stop7h 24mUnited Airlines
Sat 1/45:05 amONT - HLN
1 stop7h 40mUnited Airlines
Deal found 12/19$965
This American Airlines deal was found by Cheapflights users on 12/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/211:38 pmMSO - ONT
1 stop8h 19mAmerican Airlines
Fri 12/2712:59 amONT - MSO
1 stop10h 41mAmerican Airlines
Deal found 12/18$2,040

Find flights from Montana to Ontario within your budget

Customize your flight search to find flights from Montana to Ontario 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 December 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BozemanOntario

BZN - ONT

BZNONT

Bozeman Gallatin Field

Fri 1/10

4:52 pm-10:13 pm

1 stop6h 21m

Ontario

Tue 1/14

6:00 am-1:57 pm

1 stop6h 57m

$220

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Thu 1/23

12:53 pm-6:13 pm

1 stop6h 20m

Ontario

Tue 1/28

4:06 pm-11:57 pm

1 stop6h 51m

$220

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Thu 1/9

4:12 pm-10:13 pm

1 stop7h 01m

Ontario

Sun 1/12

6:00 am-1:42 pm

1 stop6h 42m

$220

HelenaOntario

HLN - ONT

HLNONT

Helena

Fri 2/7

4:41 pm-10:39 pm

1 stop6h 58m

Ontario

Sun 2/9

11:33 am-4:04 pm

1 stop27h 31m

$220

MissoulaOntario

MSO - ONT

MSOONT

Missoula Johnson-Bell Field

Thu 1/9

6:21 pm-11:53 pm

1 stop6h 32m

Ontario

Fri 1/10

6:00 am-5:41 pm

2 stops10h 41m

$241

HelenaOntario

HLN - ONT

HLNONT

Helena

Fri 2/7

1:30 pm-10:32 pm

2 stops10h 02m

Ontario

Sun 2/9

6:00 am-12:50 pm

1 stop5h 50m

$241

KalispellOntario

FCA - ONT

FCAONT

Kalispell Glacier Park

Fri 1/24

2:43 pm-8:51 pm

1 stop7h 08m

Ontario

Sun 1/26

1:45 pm-9:53 pm

1 stop7h 08m

$252

BozemanOntario

BZN - ONT

BZNONT

Bozeman Gallatin Field

Fri 1/24

6:41 pm-11:53 pm

1 stop6h 12m

Ontario

Sun 1/26

5:10 pm-10:56 pm

1 stop4h 46m

$268

BillingsOntario

BIL - ONT

BILONT

Billings Logan Intl

Wed 1/8

2:55 pm-5:59 pm

1 stop28h 04m

Ontario

Mon 1/13

7:00 am-2:15 pm

1 stop6h 15m

$271

Great FallsOntario

GTF - ONT

GTFONT

Great Falls

Sat 1/18

5:30 am-3:25 pm

2 stops10h 55m

Ontario

Tue 1/21

6:00 am-5:49 pm

2 stops10h 49m

$283

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 35 results
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Best time to book a flight from Montana to Ontario

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

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

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

Currently, September is the cheapest month in which you can book a flight from Montana to Ontario (average of $236). Flying from Montana to Ontario in December is currently the most expensive (average of $298). 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 MT to ONT?

Find hourly flight availability from Montana to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 19, 2024.

When flying from Montana to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated December 19, 2024.
Peruse reviews from past customers who have flown with United Airlines, Alaska Airlines and Delta from Montana to Ontario to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,836 reviews

Food

7.2

Overall

8.1

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,836 reviews
Southwest
8.1
Very good
4,836 reviews

Food

7.2

Overall

8.1

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,552 reviews
Southwest
8.1
Very good
4,836 reviews

Food

7.2

Overall

8.1

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,600 reviews
Southwest
8.1
Very good
4,836 reviews

Food

7.2

Overall

8.1

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,048 reviews
Southwest
8.1
Very good
4,836 reviews

Food

7.2

Overall

8.1

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,836 reviews

Food

7.2

Overall

8.1

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Montana to Ontario. 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 into for flights to Ontario from Montana?

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

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

    The cheapest airlines for a one-way flight from Montana to Ontario are Alaska Airlines ($110), Delta ($118), and United Airlines ($151).

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

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

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Montana to Ontario (average of $236). Flying from Montana to Ontario in December is currently the most expensive (average of $298). 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 Montana to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Montana to Ontario

Discover the top 3 airlines that operate flights from Montana to Ontario. 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 December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$82Average$402FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$151Average$551FlexibilityNo cancel feeOn-time69%
DeltaCheapest$217Average$488FlexibilityNo cancel feeOn-timeN/A
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