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$258+ Cheap flights from Montrose to Ontario (MTJ - ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
MTJ — ONT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$258
(Southwest)

Popular in

November

Cheapest in

August

Average price

$438
From Montrose County to Ontario
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 12, 2025.

This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/911:50 amMTJ - ONT
1 stop8h 50mSouthwest
Tue 11/185:45 amONT - MTJ
1 stop4h 35mSouthwest
Deal found 6/10$258
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/43:30 pmMTJ - ONT
1 stop6h 24mUnited Airlines
Tue 7/81:34 pmONT - MTJ
1 stop6h 17mUnited Airlines
Deal found 6/12$309

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 June 12, 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

Fri 7/4

3:30 pm-8:54 pm

1 stop6h 24m

Ontario

Tue 7/8

1:34 pm-8:51 pm

1 stop6h 17m

$309

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Wed 9/3

7:30 am-12:32 pm

1 stop6h 02m

$276

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Mon 6/23

2:39 pm-10:14 pm

1 stop8h 35m

$741

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 $328). 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.

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 June 12, 2025.
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Entertainment

7.6

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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.

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

    Our cheapest airline available from Montrose to Ontario is Southwest. Our recent data shows that you can find tickets from as low as $258 on this airline. An additional option worth looking into is United Airlines, starting at $309.

  • 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 $328). 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.

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Top airline flying from Montrose to Ontario

Discover the top airline that operate flights from Montrose 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$306Average$405FlexibilityNo cancel feeOn-time69%

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