HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$165+ 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
MTJ — ONT
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Montrose to Ontario 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 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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/314:35 pmMTJ - ONT
1 stop6h 58mUnited Airlines
Sun 1/45:05 amONT - MTJ
1 stop6h 21mUnited Airlines
Deal found 12/16$281
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/193:25 pmMTJ - ONT
1 stop6h 42mUnited Airlines
Sun 12/211:40 pmONT - MTJ
1 stop5h 46mUnited Airlines
Deal found 12/17$449
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/201:34 pmMTJ - ONT
2 stops10h 07mUnited Airlines
Sun 12/211:40 pmONT - MTJ
1 stop5h 46mUnited Airlines
Deal found 12/17$454
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:00 amMTJ - ONT
1 stop6h 38mUnited Airlines
Sat 12/205:05 amONT - MTJ
1 stop6h 33mUnited Airlines
Deal found 12/17$869

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$281
(United Airlines)

One-way from

$165
(United Airlines)

Popular in

May

Cheapest in

January

Average price

$409
Provider with most accurate pricing for Montrose County-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Montrose County-Ontario flights.
Search Deals
From Montrose County to Ontario
Search Deals
One-way flight from Montrose County to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 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 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 December 18, 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

Sun 1/25

4:07 pm-10:53 pm

1 stop7h 46m

Ontario

Fri 1/30

5:05 am-12:30 pm

1 stop6h 25m

$281

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Wed 1/21

7:00 am-12:47 pm

1 stop6h 47m

Ontario

Sat 1/24

1:24 pm-8:17 pm

1 stop5h 53m

$281

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Thu 1/15

1:32 pm-10:53 pm

2 stops10h 21m

Ontario

Thu 1/22

1:24 pm-8:17 pm

1 stop5h 53m

$286

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Fri 1/30

3:28 pm-8:58 pm

1 stop6h 30m

Ontario

Sat 2/7

1:24 pm-8:17 pm

1 stop5h 53m

$330

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Thu 12/25

3:25 pm-9:07 pm

1 stop6h 42m

$165

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Fri 12/26

7:00 am-12:38 pm

1 stop6h 38m

$261

MontroseOntario

MTJ - ONT

MTJONT

Montrose County

Fri 1/2

4:35 pm-9:59 am

1 stop18h 24m

$668

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Compare providers for flights from Montrose to Ontario

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 Montrose to Ontario 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 Montrose-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Montrose-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Montrose-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montrose-Ontario 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 Montrose-Ontario 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 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, July is the cheapest month in which you can book a flight from Montrose to Ontario (average of $83). Flying from Montrose to Ontario in December is currently the most expensive (average of $205). 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 6h 30m. Airlines will cover a distance of 621 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, July is the cheapest month in which you can book a flight from Montrose to Ontario (average of $83). Flying from Montrose to Ontario in December is currently the most expensive (average of $205). 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 Montrose to Ontario

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