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$246+ Cheap flights from Montrose to Ontario (MTJ - 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
MTJ — ONT
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Montrose to Ontario

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

Round-trip from

$292
(United Airlines)

One-way from

$246
(United Airlines)

Popular in

November

Cheapest in

January

Average price

$368
From Montrose County to Ontario
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One-way flight from Montrose County to Ontario
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Highest demand for flights based on searches. 16% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 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 Montrose to Ontario

Cheapest flights from Montrose to Ontario
Explore the most affordable flight options available from Montrose to Ontario. 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 9/15. 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.
Wed 10/153:25 pmMTJ - ONT
1 stop5h 59mUnited Airlines
Fri 10/175:05 amONT - MTJ
1 stop6h 41mUnited Airlines
Deal found 9/15$292
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.
Tue 9/307:30 amMTJ - ONT
1 stop6h 21mUnited Airlines
Tue 10/71:15 pmONT - MTJ
1 stop6h 04mUnited Airlines
Deal found 9/17$371
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.
Thu 10/21:45 pmMTJ - ONT
1 stop4h 38mUnited Airlines
Mon 10/65:05 amONT - MTJ
1 stop6h 41mUnited Airlines
Deal found 9/17$391
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2111:50 amMTJ - ONT
1 stop4h 15mSouthwest
Fri 11/285:50 amONT - MTJ
1 stop4h 15mSouthwest
Deal found 9/16$437
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 9/261:45 pmMTJ - ONT
1 stop4h 38mUnited Airlines
Mon 9/295:05 amONT - MTJ
1 stop6h 41mUnited Airlines
Deal found 9/15$441
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 9/273:25 pmMTJ - ONT
2 stops8h 27mUnited Airlines
Mon 9/295:05 amONT - MTJ
1 stop6h 41mUnited Airlines
Deal found 9/15$446
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 9/273:25 pmMTJ - ONT
2 stops8h 27mUnited Airlines
Tue 9/309:36 amONT - MTJ
2 stops9h 43mUnited Airlines
Deal found 9/15$451

Cheapflights Fare Finder

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

Fly from

Montrose

Fly to

Ontario

Route

Depart

Return

Price

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Wed 10/15

3:25 pm-8:24 pm

1 stop5h 59m

Ontario

Fri 10/17

5:05 am-12:46 pm

1 stop6h 41m

$292

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Tue 9/30

7:30 am-12:51 pm

1 stop6h 21m

Ontario

Tue 10/7

1:15 pm-8:19 pm

1 stop6h 04m

$371

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Thu 10/2

1:45 pm-5:23 pm

1 stop4h 38m

Ontario

Mon 10/6

5:05 am-12:46 pm

1 stop6h 41m

$391

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Fri 11/21

11:50 am-3:05 pm

1 stop4h 15m

Ontario

Fri 11/28

5:50 am-11:05 am

1 stop4h 15m

$437

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Fri 9/26

1:45 pm-5:23 pm

1 stop4h 38m

Ontario

Mon 9/29

5:05 am-12:46 pm

1 stop6h 41m

$441

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Sat 9/27

3:25 pm-10:52 pm

2 stops8h 27m

Ontario

Tue 9/30

1:15 pm-8:19 pm

1 stop6h 04m

$446

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Sat 9/27

3:25 pm-10:52 pm

2 stops8h 27m

Ontario

Mon 9/29

5:05 am-12:46 pm

1 stop6h 41m

$446

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Mon 9/22

1:43 pm-5:29 pm

1 stop4h 46m

$246

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Tue 10/7

7:30 am-12:51 pm

1 stop6h 21m

$269

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Sat 9/20

1:43 pm-8:33 pm

2 stops7h 50m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Montrose to Ontario

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

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

Currently, August is the cheapest month in which you can book a flight from Montrose to Ontario (average of $246). Flying from Montrose to Ontario in March is currently the most expensive (average of $327). 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.

Related info for your journey

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

    Departing from Montrose to Ontario will take you 5h 59m. Airlines will cover a distance of 621 mi.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Montrose to Ontario (average of $246). Flying from Montrose to Ontario in March is currently the most expensive (average of $327). 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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