$179+ Cheap flights from Ontario to Montrose (ONT - MTJ)
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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MTJ
Oct 12 — Oct 191
Round-trip
1 adult, Economy
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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
Best
Last-minute
One-way
Cheapest flights from Ontario to MontroseExplore 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 September 12, 2026.
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 September 12, 2026.
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/235:00 am -
1 stop6h 35m
Tue 10/277:15 am -
2 stops9h 18m
Deal found 9/6![United Airlines logo]()
$298
This United Airlines deal was found by Cheapflights users on 9/7. 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 11/145:00 am -
1 stop6h 36m
Tue 11/177:15 am -
1 stop6h 18m
Deal found 9/7![United Airlines logo]()
$323
This Southwest deal was found by Cheapflights users on 9/6. 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 10/239:45 am -
2 stops8h 45m
Tue 10/278:35 am -
2 stops8h 00m
Deal found 9/6![Southwest logo]()
$350
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/165:00 am -
1 stop6h 35m
Sun 11/17:15 am -
1 stop6h 18m
Deal found 9/9![United Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 9/215:00 am -
1 stop6h 45m
Thu 9/247:15 am -
1 stop6h 31m
Deal found 9/10![United Airlines logo]()
$442
Best flights from Ontario to MontroseDiscover carefully curated flight deals from Ontario to Montrose that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
Discover carefully curated flight deals from Ontario to Montrose that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sun 11/85:00 am -
1 stop6h 36m
Sat 11/147:05 am -
2 stops11h 56m
Deal found 9/11![United Airlines logo]()
$306
This United Airlines deal was found by Cheapflights users on 9/8. 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 11/145:00 am -
1 stop6h 36m
Tue 11/177:15 am -
1 stop6h 18m
Deal found 9/8![United Airlines logo]()
$323
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Mon 10/195:00 am -
1 stop6h 35m
Thu 10/223:23 pm -
1 stop6h 35m
Deal found 9/8![United Airlines logo]()
$323
This United Airlines deal was found by Cheapflights users on 9/7. 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 1/261:00 pm -
1 stop6h 09m
Fri 1/293:20 pm -
1 stop6h 00m
Deal found 9/7![United Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/235:00 am -
1 stop6h 35m
Tue 10/277:15 am -
1 stop6h 18m
Deal found 9/9![United Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 9/9. 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 1/35:00 am -
1 stop6h 41m
Sat 1/93:20 pm -
1 stop6h 00m
Deal found 9/9![United Airlines logo]()
$356
Last-minute flights from Ontario to MontroseDiscover last-minute flight deals from Ontario to Montrose. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Montrose. Data last updated September 12, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 9/215:00 am -
1 stop6h 45m
Thu 9/247:15 am -
1 stop6h 31m
Deal found 9/10![United Airlines logo]()
$442
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Wed 10/75:00 am -
1 stop6h 35m
Sun 10/117:15 am -
1 stop6h 31m
Deal found 9/8![United Airlines logo]()
$461
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/165:00 am -
1 stop6h 35m
Sun 11/17:15 am -
1 stop6h 18m
Deal found 9/9![United Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/175:00 am -
1 stop6h 35m
Sat 10/243:23 pm -
1 stop6h 35m
Deal found 9/10![United Airlines logo]()
$323
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/235:00 am -
1 stop6h 35m
Tue 10/277:15 am -
2 stops9h 18m
Deal found 9/6![United Airlines logo]()
$298
This Southwest deal was found by Cheapflights users on 9/6. 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 10/239:45 am -
2 stops8h 45m
Tue 10/278:35 am -
2 stops8h 00m
Deal found 9/6![Southwest logo]()
$350
One-way flights from Ontario to MontroseSearch for one-way flight options from Ontario to Montrose. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
Search for one-way flight options from Ontario to Montrose. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/21:24 pm -
1 stop6h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$179
This Southwest deal was found by Cheapflights users on 9/6. 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.
Tue 9/221:50 pm -
1 stop4h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Southwest logo]()
$203
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Wed 9/231:18 pm -
1 stop6h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$243
This Southwest deal was found by Cheapflights users on 9/6. 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.
Wed 9/239:40 am -
2 stops8h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Southwest logo]()
$271
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 9/195:00 am -
1 stop6h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$280
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 September 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $301 (United Airlines) |
One-way from | $179 (United Airlines) |
Popular in | June |
Cheapest in | January |
Average price | $722 |
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 7,457,451 searches. Data last updated September 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
Cheapest round-trip
OntarioMontrose
ONT Ontario - MTJ Montrose County
ONTMTJ
Ontario
Wed 12/30
5:00 am-12:41 pm
1 stop6h 41m
Montrose County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$187
Quickest round-trip
OntarioMontrose
ONT Ontario - MTJ Montrose County
ONTMTJ
Ontario
Tue 9/22
1:50 pm-7:30 pm
1 stop4h 40m
Montrose County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$203
OntarioMontrose
ONT Ontario - MTJ Montrose County
ONTMTJ
Ontario
Wed 9/23
1:18 pm-8:24 pm
1 stop6h 06m
Montrose County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$243
OntarioMontrose
ONT Ontario - MTJ Montrose County
ONTMTJ
Ontario
Fri 10/2
1:24 pm-8:37 pm
1 stop6h 13m
Montrose County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$253
OntarioMontrose
ONT Ontario - MTJ Montrose County
ONTMTJ
Ontario
Sat 9/19
1:18 pm-8:25 pm
1 stop6h 07m
Montrose County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$280
OntarioMontrose
ONT Ontario - MTJ Montrose County
ONTMTJ
Ontario
Mon 9/21
1:18 pm-8:25 pm
1 stop6h 07m
Montrose County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$280
OntarioMontrose
ONT Ontario - MTJ Montrose County
ONTMTJ
Ontario
Tue 9/22
5:00 am-12:45 pm
1 stop6h 45m
Montrose County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$290
OntarioMontrose
ONT Ontario - MTJ Montrose County
ONTMTJ
Ontario
Sun 11/8
5:00 am-12:36 pm
1 stop6h 36m
Montrose County
Sat 11/14
7:05 am-6:01 pm
2 stops11h 56m
$306
OntarioMontrose
ONT Ontario - MTJ Montrose County
ONTMTJ
Ontario
Sat 11/14
5:00 am-12:36 pm
1 stop6h 36m
Montrose County
Tue 11/17
7:15 am-12:33 pm
1 stop6h 18m
$323
OntarioMontrose
ONT Ontario - MTJ Montrose County
ONTMTJ
Ontario
Mon 10/19
5:00 am-12:35 pm
1 stop6h 35m
Montrose County
Thu 10/22
3:23 pm-8:58 pm
1 stop6h 35m
$323
Showing 1-10 of 13 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
ONT-MTJ
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.
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 September 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.
Crew
8.1
Food
6.7
Entertainment
7.1
Comfort
7.3
Overall
7.4
Boarding
7.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Crew
8.1
Food
6.7
Entertainment
7.1
Comfort
7.3
Overall
7.4
Boarding
7.7
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
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.
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Alternative routes for Ontario to Montrose
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Complete your trip
Complete your trip to Montrose by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Montrose by cabin class
Find flights from Ontario to Montrose, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Montrose
Explore flights to Montrose departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.
Ontario and Montrose flights
Browse other Ontario and Montrose flight options. Last updated on September 12, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$246 | Average$294 | FlexibilityNo cancel fee | On-time69% |