ONT - LAS

$39 Find Cheap Frontier Flights from Ontario to Las Vegas

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1 adult, Economy, 0 bags

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Flight Deals

Cheap Frontier Flight Deals from Ontario to Las Vegas

 
Here are some of the best deals found on KAYAK recently from Frontier for round-trip flights from Ontario to Las Vegas 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 Frontier flight deals from Ontario to Las Vegas

Mon, Jan 12 - Fri, Jan 16
Frontier Logo
2:34 pm - 3:43 pm
ONT
-
LAS
1h 09mnonstop
Frontier Logo
6:30 am - 7:37 am
LAS
-
ONT
1h 07mnonstop
$57Frontier
Wed, Jan 14 - Wed, Jan 21
Frontier Logo
6:49 pm - 7:58 pm
ONT
-
LAS
1h 09mnonstop
Frontier Logo
1:01 pm - 2:12 pm
LAS
-
ONT
1h 11mnonstop
$58Frontier
Tue, Jan 6 - Wed, Jan 7
Frontier Logo
7:52 am - 9:00 am
ONT
-
LAS
1h 08mnonstop
Frontier Logo
8:45 am - 9:50 am
LAS
-
ONT
1h 05mnonstop
$59Frontier
Thu, Feb 5 - Tue, Feb 10
Frontier Logo
8:48 pm - 9:56 pm
ONT
-
LAS
1h 08mnonstop
Frontier Logo
12:41 pm - 1:52 pm
LAS
-
ONT
1h 11mnonstop
$60Frontier
Wed, Jan 21 - Sat, Jan 24
Frontier Logo
3:07 pm - 4:19 pm
ONT
-
LAS
1h 12mnonstop
Frontier Logo
12:23 pm - 1:34 pm
LAS
-
ONT
1h 11mnonstop
$61Frontier
Sat, Jan 24 - Mon, Jan 26
Frontier Logo
7:35 pm - 8:44 pm
ONT
-
LAS
1h 09mnonstop
Frontier Logo
1:30 pm - 2:41 pm
LAS
-
ONT
1h 11mnonstop
$62Frontier
Thu, Jan 15 - Sat, Jan 17
Frontier Logo
4:34 pm - 5:49 pm
ONT
-
LAS
1h 15mnonstop
Frontier Logo
6:42 pm - 7:50 pm
LAS
-
ONT
1h 08mnonstop
$63Frontier
Thu, Jan 8 - Thu, Jan 8
Frontier Logo
2:34 pm - 3:43 pm
ONT
-
LAS
1h 09mnonstop
Frontier Logo
6:15 pm - 7:22 pm
LAS
-
ONT
1h 07mnonstop
$64Frontier
Sun, Feb 22 - Sun, Feb 22
Frontier Logo
3:24 pm - 4:36 pm
ONT
-
LAS
1h 12mnonstop
Frontier Logo
8:25 pm - 9:33 pm
LAS
-
ONT
1h 08mnonstop
$66Frontier
Wed, Jan 7 - Sat, Jan 10
Frontier Logo
10:45 am - 11:54 am
ONT
-
LAS
1h 09mnonstop
Frontier Logo
1:17 pm - 2:26 pm
LAS
-
ONT
1h 09mnonstop
$68Frontier
Useful Info

Good to know

Low seasonNovember
Cheapest flight$39
Average price round-trip$179
Good deal round-trip$152
Best time to beat the crowds but there is an average 18% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Ontario to Las Vegas
(avg. price over the last 2 weeks)
or less

When to Book Flights with Frontier from Ontario to Las Vegas

Average price per month
Flight prices as travel date approaches

FAQs for flying to Las Vegas with Frontier

  • How far in advance should I book tickets for a flight with Frontier from Ontario to Las Vegas?

    Generally, when trying to get a below average price for your ticket, try to book around 8 days before departure. For the cheapest possible price, our data suggests booking 64 days before departure.

  • Is Frontier the cheapest airline to fly with from Ontario to Las Vegas?

    With an average price of $113 return, Frontier is not the cheapest airline to fly from Ontario to Las Vegas with. Instead, for the lowest price, our data suggests flying with Spirit Airlines, where a return flight costs $83 on average.

  • What is the cheapest Frontier flight from Ontario to Las Vegas?

    In the last 3 days, the lowest price for a flight with Frontier from Ontario to Las Vegas was $58 for a return flight and $42 for a one-way flight.

  • Does Frontier fly direct to Las Vegas from Ontario?

    Yes, Frontier does offer direct flights for the route, with around 2 flights per week.

  • What’s the cheapest day of the week to fly from Ontario to Las Vegas with Frontier?

    On average, the cheapest day of the week to fly from Ontario to Las Vegas with Frontier is Tuesday, when prices are around $16. The most expensive day is generally Thursday, where the average price is around $29.

  • What’s the cheapest month to fly from Ontario to Las Vegas with Frontier?

    The cheapest month for Frontier flights to Las Vegas from Ontario is generally May, where plane tickets cost $54 on average. If possible, try to avoid the most expensive months of November and October, where tickets cost $107 and $114 respectively.

Frontier Customer Reviews

5.8
Fair3,082 verified ratings
6.7Crew
4.4Entertainment
4.6Food
6.0Boarding
5.5Comfort
Pros +
  • Crew was extremely pleasant. (in 1649 reviews)
Cons -
  • Several individuals used foul language 50% of of the 4hr flight. (in 4167 reviews)
  • The seats could be a bit bigger (in 2932 reviews)
Show reviews that mention
Traveler rating:
Sort by:
V
2.0 Poor
DEN
-
PHL
Not clean and was told I would get a great seat and it was not great at all
Y
8.0 Very good
SJU
-
PHL
Good- no snacks on a 4+ hour flight is painful but more painful was the lack of WiFi.
O
2.0 Poor
MCO
-
CLE
Flight got delayed for 5 hours no good explanation was offered ;(
V
6.0 Okay
PHX
-
SEA
Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.
D
2.0 Poor
DEN
-
ATL
Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.
J
8.0 Very good
LAS
-
SLC
It was excellent everything
V
4.0 Mediocre
LAX
-
IAH
When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.
L
8.0 Very good
PHL
-
SRQ
Delayed on tarmac and boarding
M
8.0 Very good
MDW
-
MCO
Better than expected. Staff were friendly and nice on both flights.
J
2.0 Poor
DEN
-
AUS
Worst experience ever...never fly Frontier again.

Everything you need to know for your flight from Ontario to Las Vegas

Cabin class types available on flights to Las Vegas

Cabin classes available on flights to Ontario. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.