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Find and compare Frontier flights to Ontario

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Recent Frontier flights to Ontario found by users

Cheap Frontier Flight Deals to Ontario

Enter your travel dates to find the best prices.
Frontier Logo
12:58 pm - 2:25 pmDEN-ONT
2h 27mnonstop
Frontier Logo
3:20 pm - 6:40 pmONT-DEN
2h 20mnonstop
$79Frontier
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Fri, Dec 5 - Sat, Dec 6
Frontier Logo
2:00 pm - 3:26 pmDEN-ONT
2h 26mnonstop
Frontier Logo
12:58 am - 4:20 amONT-DEN
2h 22mnonstop
$80Frontier
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Tue, Nov 25 - Wed, Nov 26
Frontier Logo
2:00 pm - 3:26 pmDEN-ONT
2h 26mnonstop
Frontier Logo
7:48 pm - 11:15 pmONT-DEN
2h 27mnonstop
$81Frontier
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Tue, Nov 25 - Fri, Nov 28
Frontier Logo
10:32 pm - 11:59 pmDEN-ONT
2h 27mnonstop
Frontier Logo
6:45 am - 10:06 amONT-DEN
2h 21mnonstop
$83Frontier
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Fri, Dec 26 - Tue, Dec 30
Frontier Logo
8:00 am - 9:17 pmDFW-ONT
15h 17m1 stop
Frontier Logo
12:30 pm - 5:35 pmONT-DFW
3h 05mnonstop
$84Frontier
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Wed, Dec 10 - Tue, Dec 16
Frontier Logo
1:40 pm - 3:06 pmDEN-ONT
2h 26mnonstop
Frontier Logo
6:45 am - 10:06 amONT-DEN
2h 21mnonstop
$84Frontier
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Sun, Dec 14 - Sun, Dec 21
Frontier Logo
12:58 pm - 2:25 pmDEN-ONT
2h 27mnonstop
Frontier Logo
6:15 am - 2:53 pmONT-DEN
7h 38m1 stop
$85Frontier
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Sat, Dec 13 - Tue, Dec 16
Frontier Logo
7:33 am - 9:17 pmDEN-ONT
14h 44m1 stop
Frontier Logo
3:20 pm - 6:40 pmONT-DEN
2h 20mnonstop
$86Frontier
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Sat, Dec 13 - Mon, Dec 15
Frontier Logo
12:58 pm - 2:25 pmDEN-ONT
2h 27mnonstop
Frontier Logo
6:15 am - 3:58 amONT-DEN
20h 43m1 stop
$87Frontier
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Sat, Dec 13 - Mon, Dec 15
Frontier Logo
10:00 am - 11:27 amDFW-ONT
3h 27mnonstop
Frontier Logo
6:19 pm - 11:22 pmONT-DFW
3h 03mnonstop
$88Frontier
Find Deal
Tue, Dec 9 - Fri, Dec 12

Frontier flights to Ontario at a glance

Best Price Found

$67

Fastest flight time

1h 21m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Ontario

1 airport
The best flight deal from United States to Ontario found on momondo in the last 72 hours is $67
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The fastest flight from United States to Ontario takes 1h 21m
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Direct flights go from United States to Ontario on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Frontier.
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There is 1 airport near Ontario: Ontario (ONT)
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Insights on Frontier flights to Ontario

Data designed to help you find the right flight

What is the cheapest day to depart on your Economy Class flight to Ontario?

The cheapest day to depart from United States to Ontario is on a Saturday when prices can be found for as low as $27. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average Economy Class ticket price to Ontario on a Sunday is $42.

What is the cheapest month to fly Economy Class to Ontario?

In general, February is the cheapest month to fly Economy Class from United States to Ontario. Due to it being the ‘off-season’ during this time, you can expect Economy Class flight prices to be around $68. If you aren’t able to travel during the month of February, then book Economy Class flights to Ontario from United States during May instead. Economy Class flights to Ontario in May, while not as cheap as those in February, still average around $78.

How far in advance should I book a flight to Ontario?

You are more likely to see cheaper flights to Ontario from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $116 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from United States for as low as $58 on momondo.

Can stopping save me money on United States to Ontario flights?

You could potentially save up to 55% on your flight if you consider stops on a United States to Ontario flight.

Frequently asked questions about flights to Ontario with Frontier

Is Frontier generally cheaper than other airlines for flights to Ontario?

Lots of factors influence the price of a flight, whether that's with Frontier or other airlines so it is best to search and compare before booking. The airline flying to Ontario with the cheapest average return price tends to be Frontier.

Which other airlines fly to Ontario?

Aside from Frontier, Southwest, JetBlue and Delta also fly to Ontario.

How much is a flight to Ontario with Frontier?

The average price for a return flight is $189.

Which airport do Frontier flights arrive at for Ontario?

Flights from Frontier on this route tend to land in Ontario Airport.

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