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Cheap flights from Ontario to Montrose from $230

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 6/2. 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.
United Airlines Logo
1:18 pm - 8:10 pm
ONT
-
MTJ
5h 52m
1 stop
United Airlines Logo
3:25 pm - 8:46 pm
MTJ
-
ONT
6h 21m
1 stop
$340United Airlines
Fri, Jun 19 - Wed, Jun 24
American Airlines Logo
6:00 am - 1:29 pm
ONT
-
MTJ
6h 29m
1 stop
American Airlines Logo
2:19 pm - 9:12 pm
MTJ
-
ONT
7h 53m
1 stop
$349American Airlines
Sat, Aug 22 - Thu, Aug 27
United Airlines Logo
5:00 am - 12:45 pm
ONT
-
MTJ
6h 45m
1 stop
United Airlines Logo
3:24 pm - 8:53 pm
MTJ
-
ONT
6h 29m
1 stop
$351United Airlines
Sat, Aug 22 - Thu, Aug 27
American Airlines Logo
12:59 pm - 1:29 pm
ONT
-
MTJ
23h 30m
2 stops
American Airlines Logo
2:19 pm - 9:12 pm
MTJ
-
ONT
7h 53m
1 stop
$397American Airlines
Sat, Aug 22 - Thu, Aug 27
United Airlines Logo
5:00 am - 12:44 pm
ONT
-
MTJ
6h 44m
1 stop
United Airlines Logo
7:25 am - 12:38 pm
MTJ
-
ONT
6h 13m
1 stop
$405United Airlines
Sat, Jun 13 - Sat, Jun 20
United Airlines Logo
5:00 am - 12:45 pm
ONT
-
MTJ
6h 45m
1 stop
United Airlines Logo
1:42 pm - 8:01 pm
MTJ
-
ONT
7h 19m
2 stops
$410United Airlines
Sat, Aug 15 - Sat, Aug 22
United Airlines Logo
5:00 am - 12:44 pm
ONT
-
MTJ
6h 44m
1 stop
United Airlines Logo
7:25 am - 12:47 pm
MTJ
-
ONT
6h 22m
1 stop
$420United Airlines
Sun, Jun 21 - Tue, Jun 30
American Airlines Logo
12:59 pm - 1:30 pm
ONT
-
MTJ
23h 31m
2 stops
American Airlines Logo
2:21 pm - 9:12 pm
MTJ
-
ONT
7h 51m
1 stop
$427American Airlines
Sat, Aug 22 - Thu, Aug 27
United Airlines Logo
5:00 am - 12:44 pm
ONT
-
MTJ
6h 44m
1 stop
United Airlines Logo
3:25 pm - 8:46 pm
MTJ
-
ONT
6h 21m
1 stop
$459United Airlines
Sat, Jun 6 - Tue, Jun 9
United Airlines Logo
5:00 am - 12:44 pm
ONT
-
MTJ
6h 44m
1 stop
United Airlines Logo
1:40 pm - 10:37 pm
MTJ
-
ONT
9h 57m
2 stops
$464United Airlines
Sat, Jun 6 - Tue, Jun 9

United Airlines flights from Ontario to Montrose

Our best United Airlines deals on Ontario to Montrose flight tickets
United Airlines
Jun 19
ONT1:18 pmOntario
5h 52m
1 stop
MTJ8:10 pmMontrose County
Jun 24
MTJ3:25 pmMontrose County
6h 21m
1 stop
ONT8:46 pmOntario
$340
United Airlines
Aug 22
ONT5:00 amOntario
6h 45m
1 stop
MTJ12:45 pmMontrose County
Aug 27
MTJ3:24 pmMontrose County
6h 29m
1 stop
ONT8:53 pmOntario
$351
United Airlines
Jun 13
ONT5:00 amOntario
6h 44m
1 stop
MTJ12:44 pmMontrose County
Jun 20
MTJ7:25 amMontrose County
6h 13m
1 stop
ONT12:38 pmOntario
$405

American Airlines flights from Ontario to Montrose

Our best American Airlines deals on Ontario to Montrose flight tickets
American Airlines
Aug 22
ONT6:00 amOntario
6h 29m
1 stop
MTJ1:29 pmMontrose County
Aug 27
MTJ2:19 pmMontrose County
7h 53m
1 stop
ONT9:12 pmOntario
$349
American Airlines
Aug 22
ONT12:59 pmOntario
23h 30m
2 stops
MTJ1:29 pmMontrose County
Aug 27
MTJ2:19 pmMontrose County
7h 53m
1 stop
ONT9:12 pmOntario
$397
American Airlines
Aug 22
ONT12:59 pmOntario
23h 31m
2 stops
MTJ1:30 pmMontrose County
Aug 27
MTJ2:21 pmMontrose County
7h 51m
1 stop
ONT9:12 pmOntario
$427

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 May 27, 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

Fri 6/19

1:18 pm-8:10 pm

1 stop5h 52m

Montrose County

Wed 6/24

3:25 pm-8:46 pm

1 stop6h 21m

$340

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 8/22

6:00 am-1:29 pm

1 stop6h 29m

Montrose County

Thu 8/27

2:19 pm-9:12 pm

1 stop7h 53m

$349

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 8/22

5:00 am-12:45 pm

1 stop6h 45m

Montrose County

Thu 8/27

3:24 pm-8:53 pm

1 stop6h 29m

$351

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 8/22

12:59 pm-1:29 pm

2 stops23h 30m

Montrose County

Thu 8/27

2:19 pm-9:12 pm

1 stop7h 53m

$397

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 6/13

5:00 am-12:44 pm

1 stop6h 44m

Montrose County

Sat 6/20

7:25 am-12:38 pm

1 stop6h 13m

$405

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 8/15

5:00 am-12:45 pm

1 stop6h 45m

Montrose County

Sat 8/22

1:42 pm-8:01 pm

2 stops7h 19m

$410

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sun 6/21

5:00 am-12:44 pm

1 stop6h 44m

Montrose County

Tue 6/30

7:25 am-12:47 pm

1 stop6h 22m

$420

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 8/22

12:59 pm-1:30 pm

2 stops23h 31m

Montrose County

Thu 8/27

2:21 pm-9:12 pm

1 stop7h 51m

$427

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 6/6

5:00 am-12:44 pm

1 stop6h 44m

Montrose County

Tue 6/9

3:25 pm-8:46 pm

1 stop6h 21m

$459

OntarioMontrose

ONT - MTJ

ONTMTJ

Ontario

Sat 6/6

5:00 am-12:44 pm

1 stop6h 44m

Montrose County

Tue 6/9

1:40 pm-10:37 pm

2 stops9h 57m

$464

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 typical price of a round-trip flight between Ontario and Montrose?

What is the cheapest month to fly to Montrose?

If you don’t want to visit Montrose in April, then you should wait until March to fly from Ontario, when ticket prices are also cheap, with an average price of $0.

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 52m

Direct flights

None
The fastest flight from Ontario to Montrose takes 5h 52m
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 52m, 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
9,749 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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Fri 6/26
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