HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montrose

$151+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MTJ
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
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 March 12, 2026.

This United Airlines deal was found by Cheapflights users on 3/8. 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.
Thu 6/41:18 pm
ONT
-
MTJ
1 stop5h 52m
United Airlines
Mon 6/81:40 pm
MTJ
-
ONT
1 stop4h 48m
United Airlines
Deal found 3/8$301
This United Airlines deal was found by Cheapflights users on 3/8. 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.
Sat 10/315:00 am
ONT
-
MTJ
1 stop6h 41m
United Airlines
Wed 11/47:30 am
MTJ
-
ONT
2 stops11h 17m
United Airlines
Deal found 3/8$306
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 4/145:10 am
ONT
-
MTJ
1 stop6h 31m
United Airlines
Sat 4/187:15 am
MTJ
-
ONT
2 stops11h 32m
United Airlines
Deal found 3/9$316
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 3/245:15 am
ONT
-
MTJ
1 stop6h 17m
United Airlines
Sat 3/283:39 pm
MTJ
-
ONT
1 stop6h 11m
United Airlines
Deal found 3/9$321
This American Airlines deal was found by Cheapflights users on 3/8. 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.
Thu 3/196:00 am
ONT
-
MTJ
1 stop6h 56m
American Airlines
Mon 3/232:38 pm
MTJ
-
ONT
1 stop8h 52m
American Airlines
Deal found 3/8$339
This United Airlines deal was found by Cheapflights users on 3/8. 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.
Thu 4/95:10 am
ONT
-
MTJ
1 stop6h 31m
United Airlines
Tue 4/147:15 am
MTJ
-
ONT
1 stop6h 23m
United Airlines
Deal found 3/8$340
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Thu 3/191:50 pm
ONT
-
MTJ
1 stop5h 16m
United Airlines
Mon 3/233:39 pm
MTJ
-
ONT
1 stop6h 11m
United Airlines
Deal found 3/9$345
This United Airlines deal was found by Cheapflights users on 3/11. 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 3/265:15 am
ONT
-
MTJ
1 stop6h 17m
United Airlines
Mon 3/303:37 pm
MTJ
-
ONT
1 stop5h 59m
United Airlines
Deal found 3/11$365
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Thu 3/191:50 pm
ONT
-
MTJ
1 stop5h 16m
United Airlines
Sun 3/224:58 pm
MTJ
-
ONT
1 stop6h 59m
United Airlines
Deal found 3/9$369

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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$301
(United Airlines)

One-way from

$151
(United Airlines)

Popular in

September

Cheapest in

January

Average price

$358
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. 14% potential increase in price ($78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 12, 2026.
Use the filters below to find and compare flights from Ontario to Montrose that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Thu 6/4

1:18 pm-8:10 pm

1 stop5h 52m

Montrose County

Mon 6/8

1:40 pm-5:28 pm

1 stop4h 48m

$301

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Tue 4/14

5:10 am-12:41 pm

1 stop6h 31m

Montrose County

Sat 4/18

7:15 am-5:47 pm

2 stops11h 32m

$316

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Thu 4/9

5:10 am-12:41 pm

1 stop6h 31m

Montrose County

Tue 4/14

7:15 am-12:38 pm

1 stop6h 23m

$340

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sun 6/7

5:00 am-12:44 pm

1 stop6h 44m

Montrose County

Sat 6/13

1:40 pm-10:50 pm

2 stops10h 10m

$404

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Fri 6/5

1:18 pm-8:10 pm

1 stop5h 52m

Montrose County

Tue 6/9

1:40 pm-5:28 pm

1 stop4h 48m

$421

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 3/28

5:15 am-12:32 pm

1 stop6h 17m

Montrose County

Sun 3/29

3:37 pm-8:36 pm

1 stop5h 59m

$421

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Thu 3/19

5:15 am-12:32 pm

1 stop6h 17m

Montrose County

Mon 3/23

3:39 pm-8:50 pm

1 stop6h 11m

$429

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Thu 3/26

5:15 am-12:32 pm

1 stop6h 17m

Montrose County

Mon 3/30

1:40 pm-10:45 pm

2 stops10h 05m

$432

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Mon 3/23

5:15 am-12:32 pm

1 stop6h 17m

Montrose County

Tue 3/24

7:36 am-12:49 pm

1 stop6h 13m

$441
Cheapest one-way

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Tue 4/14

5:10 am-12:41 pm

1 stop6h 31m

$151

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 19 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Montrose flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 April is currently the most expensive (average of $242). 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 March 12, 2026.
Read through reviews of airlines operating flights from Ontario to Montrose, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,418 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
9,418 reviews
United Airlines
7.4
Good
9,418 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

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 5h 52m. Your travel time can differ by up to . There are 621 mi between Ontario and Montrose.

  • What is the cheapest airline to fly from Ontario to Montrose round-trip?

    Flying on United Airlines is currently your cheapest option to Montrose, with prices starting at $246.

  • 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 April is currently the most expensive (average of $242). 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
San Jose to Denver flights
San Diego to Denver flights
Sacramento to Denver flights
Burbank to Denver flights
Las Vegas to Denver flights
Oakland to Denver flights
Reno to Denver flights
Palm Springs to Denver flights
Los Angeles to Aspen flights
Fresno to Denver flights
Long Beach to Denver flights
San Francisco to Aspen flights
Los Angeles to Vail flights
Santa Barbara to Denver flights
San Luis Obispo to Denver flights
Monterey to Denver flights
Santa Rosa to Denver flights
Ontario to Colorado Springs flights
Medford to Denver flights
Bakersfield to Denver flights
San Francisco to Colorado Springs flights
Redding to Denver flights
Arcata to Denver flights
Ontario to Aspen flights
Los Angeles to Colorado Springs flights
San Francisco to Vail flights
Las Vegas to Colorado Springs flights
San Francisco to Grand Junction flights
San Francisco to Durango flights
San Francisco to Montrose flights
San Diego to Colorado Springs flights
Los Angeles to Grand Junction flights
Ontario to Vail flights
Los Angeles to Montrose flights
Burbank to Colorado Springs flights
San Diego to Vail flights
Sacramento to Colorado Springs flights
Los Angeles to Hayden flights
San Jose to Grand Junction flights
Ontario to Grand Junction flights
Los Angeles to Durango flights
San Francisco to Gunnison flights
Sacramento to Grand Junction flights
Sacramento to Vail flights
Santa Ana to Colorado Springs flights

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 March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$246Average$405FlexibilityNo cancel feeOn-time69%

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.