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Montrose

$134+ Cheap flights from Ontario to Montrose (ONT - MTJ)

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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MTJ
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Ontario to Montrose

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Montrose (MTJ). 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 September 17, 2025.

Round-trip from

$297
(United Airlines)

One-way from

$134
(United Airlines)

Popular in

November

Cheapest in

April

Average price

$427
From Ontario to Montrose County
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One-way flight from Ontario to Montrose County
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Highest demand for flights based on searches. 21% potential increase in price ($128 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($38 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 Montrose

Cheapest flights from Ontario to Montrose
Explore the most affordable flight options available from Ontario to Montrose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 10/175:05 amONT - MTJ
1 stop6h 41mUnited Airlines
Tue 10/211:45 pmMTJ - ONT
2 stops10h 07mUnited Airlines
Deal found 9/16$297
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 10/49:36 amONT - MTJ
2 stops9h 43mUnited Airlines
Tue 10/73:25 pmMTJ - ONT
1 stop5h 59mUnited Airlines
Deal found 9/15$416
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/311:29 pmONT - MTJ
1 stop5h 51mUnited Airlines
Sun 11/21:30 pmMTJ - ONT
1 stop8h 14mUnited Airlines
Deal found 9/15$419
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 9/295:05 amONT - MTJ
1 stop6h 41mUnited Airlines
Fri 10/33:25 pmMTJ - ONT
1 stop5h 59mUnited Airlines
Deal found 9/16$441
This United Airlines deal was found by Cheapflights users on 9/14. 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 11/65:05 amONT - MTJ
1 stop6h 24mUnited Airlines
Thu 11/131:30 pmMTJ - ONT
2 stops10h 21mUnited Airlines
Deal found 9/14$531
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/31:15 pmONT - MTJ
1 stop6h 04mUnited Airlines
Tue 10/71:45 pmMTJ - ONT
2 stops10h 07mUnited Airlines
Deal found 9/17$546
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/25:05 amONT - MTJ
1 stop6h 41mUnited Airlines
Thu 10/91:45 pmMTJ - ONT
1 stop4h 38mUnited Airlines
Deal found 9/16$562
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Fri 9/261:15 pmONT - MTJ
1 stop6h 04mUnited Airlines
Mon 9/293:25 pmMTJ - ONT
1 stop5h 59mUnited Airlines
Deal found 9/16$579

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Montrose 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 September 17, 2025.
Use the filters below to find and compare flights from Ontario to Montrose that are best for you.

Fly from

Ontario

Fly to

Montrose

Route

Depart

Return

Price

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Fri 10/17

5:05 am-12:46 pm

1 stop6h 41m

Montrose County

Tue 10/21

1:45 pm-10:52 pm

2 stops10h 07m

$297

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 10/4

9:36 am-8:19 pm

2 stops9h 43m

Montrose County

Tue 10/7

3:25 pm-8:24 pm

1 stop5h 59m

$416

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Fri 10/31

1:29 pm-8:20 pm

1 stop5h 51m

Montrose County

Sun 11/2

1:30 pm-8:44 pm

1 stop8h 14m

$419

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Mon 9/29

5:05 am-12:46 pm

1 stop6h 41m

Montrose County

Fri 10/3

3:25 pm-8:24 pm

1 stop5h 59m

$441

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Thu 11/6

5:05 am-12:29 pm

1 stop6h 24m

Montrose County

Thu 11/13

1:30 pm-10:51 pm

2 stops10h 21m

$531

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Fri 10/3

1:15 pm-8:19 pm

1 stop6h 04m

Montrose County

Tue 10/7

1:45 pm-10:52 pm

2 stops10h 07m

$546

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Thu 10/2

5:05 am-12:46 pm

1 stop6h 41m

Montrose County

Thu 10/9

1:45 pm-5:23 pm

1 stop4h 38m

$562

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Fri 9/26

1:15 pm-8:19 pm

1 stop6h 04m

Montrose County

Mon 9/29

3:25 pm-8:24 pm

1 stop5h 59m

$579

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Wed 10/15

5:05 am-12:46 pm

1 stop6h 41m

$134

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 11/8

5:05 am-12:29 pm

1 stop6h 24m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 15 results
1
2

Best time to book a flight from Ontario to Montrose

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

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

Currently, October is the cheapest month in which you can book a flight from Ontario to Montrose (average of $371). Flying from Ontario to Montrose in March is currently the most expensive (average of $539). 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.

Reviews of airlines servicing Montrose

Get insights into the airlines that provide service to Montrose. 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 Montrose. Reviews last updated September 17, 2025.
Read through reviews of airlines operating flights from Ontario to Montrose, such as Southwest. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Montrose. 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 Montrose?

    United Airlines can get you from Ontario to Montrose in just under 6h 41m. Your travel time can differ by up to . There are 621 mi between Ontario and Montrose.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Ontario to Montrose (average of $371). Flying from Ontario to Montrose in March is currently the most expensive (average of $539). 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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Top airline flying from Ontario to Montrose

Discover the top airline that operate flights from Ontario to Montrose. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$366Average$426FlexibilityNo cancel feeOn-time63%

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