ONT - MTJ

$106 Find Cheap Flights from Ontario to Montrose

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Montrose departing on 4/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Montrose

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Montrose, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Montrose, as well as popular online travel agencies
Travelers love KAYAK
41’299’237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$216
Southwest
Wed 4/1Wed 4/8
ONT - MTJ • 1 stop
Cheapest one-way
$106
Southwest
Wed 4/15
ONT - MTJ • 1 stop
Top airlines
Southwest
Cheapest • from $216 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Montrose. You'll need at least 1 connection.
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Montrose (ONT-MTJ)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Montrose that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Montrose

Wed, Apr 1 - Wed, Apr 8
Southwest Logo
9:20 am - 7:55 pm
ONT
-
MTJ
9h 35m
1 stop
Southwest Logo
8:45 am - 3:10 pm
MTJ
-
ONT
7h 25m
1 stop
$216Southwest
Tue, Mar 17 - Sat, Mar 21
United Airlines Logo
1:50 pm - 8:06 pm
ONT
-
MTJ
5h 16m
1 stop
United Airlines Logo
4:04 pm - 10:57 pm
MTJ
-
ONT
7h 53m
1 stop
$281United Airlines
Wed, Mar 18 - Sun, Mar 22
United Airlines Logo
5:15 am - 12:32 pm
ONT
-
MTJ
6h 17m
1 stop
United Airlines Logo
4:58 pm - 10:57 pm
MTJ
-
ONT
6h 59m
1 stop
$284United Airlines
Thu, Mar 19 - Mon, Mar 23
United Airlines Logo
5:15 am - 12:32 pm
ONT
-
MTJ
6h 17m
1 stop
United Airlines Logo
3:39 pm - 8:50 pm
MTJ
-
ONT
6h 11m
1 stop
$301United Airlines
Wed, Mar 18 - Sun, Mar 22
United Airlines Logo
6:15 am - 2:37 pm
ONT
-
MTJ
7h 22m
2 stops
United Airlines Logo
4:58 pm - 10:57 pm
MTJ
-
ONT
6h 59m
1 stop
$319United Airlines
Thu, Mar 19 - Mon, Mar 23
United Airlines Logo
5:15 am - 12:32 pm
ONT
-
MTJ
6h 17m
1 stop
United Airlines Logo
3:39 pm - 8:50 pm
MTJ
-
ONT
6h 11m
1 stop
$330United Airlines
Wed, Apr 1 - Wed, Apr 8
Southwest Logo
11:05 am - 7:55 pm
ONT
-
MTJ
7h 50m
2 stops
Southwest Logo
8:45 am - 3:05 pm
MTJ
-
ONT
7h 20m
2 stops
$344Southwest
Mon, Mar 23 - Mon, Mar 30
United Airlines Logo
5:15 am - 12:32 pm
ONT
-
MTJ
6h 17m
1 stop
United Airlines Logo
3:37 pm - 8:36 pm
MTJ
-
ONT
5h 59m
1 stop
$345United Airlines
Fri, Apr 17 - Sun, Apr 19
Southwest Logo
12:50 pm - 7:10 pm
ONT
-
MTJ
5h 20m
1 stop
Southwest Logo
8:25 am - 11:50 am
MTJ
-
ONT
4h 25m
1 stop
$355Southwest
Wed, Apr 1 - Sat, Apr 4
United Airlines Logo
11:05 am - 8:20 pm
ONT
-
MTJ
8h 15m
2 stops
United Airlines Logo
4:06 pm - 10:45 pm
MTJ
-
ONT
7h 39m
1 stop
$365United Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Montrose flights

Get data-powered insights and trends into flights from Ontario to Montrose to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Ontario to Montrose?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Ontario to Montrose were found on Southwest ($216) and United Airlines ($281).

Find deals

Good to know

Cheapest flight$106
Flight from Ontario to Montrose

When to book flights from Ontario to Montrose

Are your dates flexible? Find out the best times to travel from Ontario to Montrose based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Montrose

  • What is the cheapest flight from Ontario to Montrose?

    In the last 3 days, the lowest price for a flight from Ontario to Montrose was $106 for a one-way ticket and $216 for a round-trip.

  • Do I need a passport to fly between Ontario and Montrose?

    A passport is not required to fly from Ontario to Montrose.

  • Which aircraft models fly most regularly from Ontario to Montrose?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Montrose?

    Star Alliance is the only airline alliance operating flights between Ontario and Montrose.

  • How does KAYAK find such low prices on flights from Ontario to Montrose?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Montrose.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Montrose?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Montrose from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Montrose?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Montrose with an airline and back to Ontario with another airline. Booking your flights between Ontario and MTJ can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Montrose?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Montrose from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Montrose

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Montrose. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Montrose? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9389 reviews
7.7Boarding
8.1Crew
7.3Comfort
6.6Food
7.1Entertainment
Airline reviews

It’s always a great time flying with united airlines.

10.0 ExcellentCollins, Mar 2026
BOS - DEN
Read more United Airlines reviews

It’s always a great time flying with united airlines.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

As great a red-eye flight as red-eye flights can be.

Both of my flights arrived early and check in process was smooth

Everything was on time Will use united again for sure

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

Everything you need to know for your flight from Ontario to Montrose

Information on your arrival and departure airports

Ontario (ONT)
Montrose (MTJ)