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Cheap flights from Ontario to Montrose from $175

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Montrose departing on 4/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Montrose

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
1:20 pm - 6:50 pm
ONT
-
MTJ
4h 30m
1 stop
Southwest Logo
8:45 am - 3:10 pm
MTJ
-
ONT
7h 25m
1 stop
$271Southwest
Sat, Apr 25 - Wed, Apr 29
Southwest Logo
8:40 am - 6:50 pm
ONT
-
MTJ
9h 10m
2 stops
Southwest Logo
8:45 am - 3:10 pm
MTJ
-
ONT
7h 25m
1 stop
$276Southwest
Sat, Apr 25 - Wed, Apr 29
Southwest Logo
8:40 am - 6:50 pm
ONT
-
MTJ
9h 10m
2 stops
Southwest Logo
8:45 am - 3:05 pm
MTJ
-
ONT
7h 20m
2 stops
$281Southwest
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
5:00 am - 12:41 pm
ONT
-
MTJ
6h 41m
1 stop
United Airlines Logo
7:00 am - 12:38 pm
MTJ
-
ONT
6h 38m
1 stop
$329United Airlines
Tue, May 5 - Wed, May 6
United Airlines Logo
5:00 am - 12:41 pm
ONT
-
MTJ
6h 41m
1 stop
United Airlines Logo
1:43 pm - 10:59 pm
MTJ
-
ONT
10h 16m
2 stops
$334United Airlines
Tue, May 5 - Wed, May 6
United Airlines Logo
5:10 am - 12:41 pm
ONT
-
MTJ
6h 31m
1 stop
United Airlines Logo
7:00 am - 12:38 pm
MTJ
-
ONT
6h 38m
1 stop
$338United Airlines
Tue, Apr 28 - Sat, May 9
United Airlines Logo
5:10 am - 12:41 pm
ONT
-
MTJ
6h 31m
1 stop
United Airlines Logo
1:43 pm - 10:59 pm
MTJ
-
ONT
10h 16m
2 stops
$343United Airlines
Tue, Apr 28 - Sat, May 9
United Airlines Logo
5:10 am - 12:41 pm
ONT
-
MTJ
6h 31m
1 stop
United Airlines Logo
1:43 pm - 10:59 pm
MTJ
-
ONT
10h 16m
2 stops
$345United Airlines
Tue, Apr 28 - Fri, May 8
United Airlines Logo
5:00 am - 12:41 pm
ONT
-
MTJ
6h 41m
1 stop
United Airlines Logo
7:00 am - 12:38 pm
MTJ
-
ONT
6h 38m
1 stop
$347United Airlines
Thu, Apr 30 - Sat, May 9
United Airlines Logo
5:10 am - 12:41 pm
ONT
-
MTJ
6h 31m
1 stop
United Airlines Logo
7:00 am - 12:38 pm
MTJ
-
ONT
6h 38m
1 stop
$349United Airlines
Sun, Apr 26 - Sat, May 9

United Airlines flights from Ontario to Montrose

Our best United Airlines deals on Ontario to Montrose flight tickets
United Airlines
May 5
ONT5:00 amOntario
6h 41m
1 stop
MTJ12:41 pmMontrose County
May 6
MTJ7:00 amMontrose County
6h 38m
1 stop
ONT12:38 pmOntario
$329
United Airlines
May 5
ONT5:00 amOntario
6h 41m
1 stop
MTJ12:41 pmMontrose County
May 6
MTJ1:43 pmMontrose County
10h 16m
2 stops
ONT10:59 pmOntario
$334
United Airlines
May 5
ONT5:00 amOntario
6h 41m
1 stop
MTJ12:41 pmMontrose County
May 6
MTJ7:00 amMontrose County
6h 38m
1 stop
ONT12:38 pmOntario
$349

American Airlines flights from Ontario to Montrose

Our best American Airlines deals on Ontario to Montrose flight tickets
American Airlines
Aug 24
ONT11:59 pmOntario
8h 48m
1 stop
MTJ9:47 amMontrose County
Aug 29
MTJ2:21 pmMontrose County
7h 47m
1 stop
ONT9:08 pmOntario
$418
American Airlines
Aug 28
ONT11:59 pmOntario
8h 48m
1 stop
MTJ9:47 amMontrose County
Sep 1
MTJ2:21 pmMontrose County
7h 47m
1 stop
ONT9:08 pmOntario
$419
American Airlines
Aug 29
ONT11:59 pmOntario
8h 48m
1 stop
MTJ9:47 amMontrose County
Sep 2
MTJ10:11 amMontrose County
9h 06m
2 stops
ONT6:17 pmOntario
$436

momondo 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, momondo users made 832,500 searches. Data last updated April 11, 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

Sat 4/25

1:20 pm-6:50 pm

1 stop4h 30m

Montrose County

Wed 4/29

8:45 am-3:10 pm

1 stop7h 25m

$271

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 4/25

8:40 am-6:50 pm

2 stops9h 10m

Montrose County

Wed 4/29

8:45 am-3:10 pm

1 stop7h 25m

$276

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 4/25

8:40 am-6:50 pm

2 stops9h 10m

Montrose County

Wed 4/29

8:45 am-3:05 pm

2 stops7h 20m

$281

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Tue 5/5

5:00 am-12:41 pm

1 stop6h 41m

Montrose County

Wed 5/6

7:00 am-12:38 pm

1 stop6h 38m

$329

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Tue 5/5

5:00 am-12:41 pm

1 stop6h 41m

Montrose County

Wed 5/6

1:43 pm-10:59 pm

2 stops10h 16m

$334

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Tue 4/28

5:10 am-12:41 pm

1 stop6h 31m

Montrose County

Sat 5/9

7:00 am-12:38 pm

1 stop6h 38m

$338

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Tue 4/28

5:10 am-12:41 pm

1 stop6h 31m

Montrose County

Sat 5/9

1:43 pm-10:59 pm

2 stops10h 16m

$343

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Tue 4/28

5:10 am-12:41 pm

1 stop6h 31m

Montrose County

Fri 5/8

1:43 pm-10:59 pm

2 stops10h 16m

$345

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Thu 4/30

5:00 am-12:41 pm

1 stop6h 41m

Montrose County

Sat 5/9

7:00 am-12:38 pm

1 stop6h 38m

$347

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sun 4/26

5:10 am-12:41 pm

1 stop6h 31m

Montrose County

Sat 5/9

7:00 am-12:38 pm

1 stop6h 38m

$349

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Montrose from

How to get the cheapest flight ticket from Ontario to Montrose

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Montrose?

On average, the least expensive day to fly to Montrose from Ontario is on a Monday. momondo users have found tickets for Monday departures for as low as $298. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Montrose for around $659.

When to book flights from Ontario to Montrose

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Montrose according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Montrose (ONT to MTJ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Montrose

Fastest flight time

5h 38m

Direct flights

None
The fastest flight from Ontario to Montrose takes 5h 38m
There are no direct flights from Ontario to Montrose. There are no popular flight routes from Ontario to Montrose.
Search flight deals

Frequently asked questions about flying from Ontario to Montrose

  • How far is Ontario to Montrose County by plane?

    There are 623.2 mi between Ontario and Montrose County. Flights usually cover this in 5h 38m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Montrose County Airport?

    Prices for flights from Ontario Airport to Montrose County Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Montrose County Airport?

  • How old do you have to be to fly from Ontario Airport to Montrose County Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Montrose County Airport.

  • What documentation or ID do you need to fly to Montrose County Airport?

    The travel and health documents you'll need for your trip to Montrose County Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Montrose County Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to Montrose?

Best airlines flying from Ontario to Montrose

Compare and see reviews for airlines that fly from Ontario to Montrose with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,569 reviews
Search United Airlines flights

Traveling to a place near Montrose?

Book flights to Montrose if you plan to visit one of these locations
Delta

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Montrose?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Montrose. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Montrose with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Montrose flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Montrose?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Montrose.

I’m not ready to book a flight from Ontario to Montrose right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Montrose now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Montrose and let you know when they change.

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