HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montrose

$141+ 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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MTJ
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Montrose 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 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 December 10, 2025.

This United Airlines deal was found by Cheapflights users on 12/8. 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 12/91:34 pmONT - MTJ
1 stop5h 36mUnited Airlines
Thu 12/117:15 amMTJ - ONT
1 stop6h 17mUnited Airlines
Deal found 12/8$379
This American Airlines deal was found by Cheapflights users on 12/8. 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.
Tue 12/910:47 amONT - MTJ
1 stop7h 32mAmerican Airlines
Thu 12/117:00 amMTJ - ONT
2 stops12h 19mAmerican Airlines
Deal found 12/8$384
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/295:05 amONT - MTJ
1 stop6h 33mUnited Airlines
Sat 1/37:00 amMTJ - ONT
1 stop15h 07mUnited Airlines
Deal found 12/9$742
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/285:05 amONT - MTJ
1 stop6h 21mUnited Airlines
Fri 1/27:00 amMTJ - ONT
1 stop6h 38mUnited Airlines
Deal found 12/10$759
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/285:05 amONT - MTJ
1 stop6h 21mUnited Airlines
Sun 1/47:00 amMTJ - ONT
1 stop15h 07mUnited Airlines
Deal found 12/9$830

Find 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 December 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$281
(United Airlines)

One-way from

$141
(United Airlines)

Popular in

September

Cheapest in

April

Average price

$456
Provider with most accurate pricing for Ontario-Montrose County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Montrose County flights.
Search Deals
From Ontario to Montrose County
Search Deals
One-way flight from Ontario to Montrose County
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 10, 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

Sun 1/4

5:05 am-12:26 pm

1 stop6h 21m

Montrose County

Sun 1/11

4:07 pm-10:53 pm

1 stop7h 46m

$281

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sun 1/11

1:24 pm-8:17 pm

1 stop5h 53m

Montrose County

Wed 1/14

3:28 pm-8:58 pm

1 stop6h 30m

$281

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Mon 3/9

5:15 am-12:42 pm

1 stop6h 27m

Montrose County

Thu 3/12

3:39 pm-8:50 pm

1 stop6h 11m

$281

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Mon 3/2

5:00 am-12:27 pm

1 stop6h 27m

Montrose County

Sat 3/7

3:39 pm-8:50 pm

1 stop6h 11m

$281

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 1/17

1:24 pm-8:17 pm

1 stop5h 53m

Montrose County

Sat 1/24

1:32 pm-10:53 pm

2 stops10h 21m

$286

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Wed 3/4

5:00 am-12:27 pm

1 stop6h 27m

Montrose County

Sun 3/8

7:36 am-12:48 pm

1 stop6h 12m

$401

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Thu 2/19

1:45 pm-8:21 pm

1 stop5h 36m

Montrose County

Sun 2/22

7:15 am-8:50 pm

1 stop14h 35m

$454

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Wed 2/18

5:00 am-12:27 pm

1 stop6h 27m

Montrose County

Sun 2/22

7:15 am-8:50 pm

1 stop14h 35m

$454

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sun 1/4

5:05 am-12:26 pm

1 stop6h 21m

$141

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Fri 12/19

1:40 pm-8:26 pm

1 stop5h 46m

$165

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 15 results
1
2

Compare providers for flights from Ontario to Montrose

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Montrose in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Montrose flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Montrose flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Montrose flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Montrose flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Montrose flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, August is the cheapest month in which you can book a flight from Ontario to Montrose (average of $76). Flying from Ontario to Montrose in November is currently the most expensive (average of $207). 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 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 21m. 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, August is the cheapest month in which you can book a flight from Ontario to Montrose (average of $76). Flying from Ontario to Montrose in November is currently the most expensive (average of $207). 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 Montrose

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Denver flights
San Francisco to Denver flights
Ontario to Denver flights
Santa Ana to Denver flights
Burbank to Denver flights
Las Vegas to Denver flights
San Diego to Denver flights
Sacramento to Denver flights
San Jose to Denver flights
Los Angeles to Aspen flights
San Francisco to Aspen flights
Oakland to Denver flights
Reno to Denver flights
San Francisco to Vail flights
Fresno to Denver flights
Bakersfield to Denver flights
Long Beach to Denver flights
Los Angeles to Hayden flights
Los Angeles to Vail flights
Los Angeles to Colorado Springs flights
Medford to Denver flights
San Luis Obispo to Denver flights
Palm Springs to Denver flights
Santa Barbara to Denver flights
Ontario to Aspen flights
Monterey to Denver flights
Los Angeles to Durango flights
Ontario to Colorado Springs flights
San Jose to Colorado Springs flights
Santa Ana to Colorado Springs flights
Ontario to Vail flights
San Francisco to Durango flights
San Diego to Durango flights
San Diego to Hayden flights
San Francisco to Hayden flights
Sacramento to Colorado Springs flights
Las Vegas to Colorado Springs flights
San Francisco to Grand Junction flights
Santa Rosa to Denver flights
San Francisco to Colorado Springs flights
Santa Ana to Aspen flights
Arcata to Denver flights
San Diego to Vail flights
Los Angeles to Montrose flights
San Diego to Colorado Springs flights
Palm Springs to Colorado Springs flights
San Francisco to Gunnison flights
Redding to Denver flights
Long Beach to Colorado Springs flights
Ontario to Durango flights

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.