Cheap Flights from Ontario, CA to Las Vegas, NV from $49

On Cheapflightsplus.com you will find 3 direct and 206 connecting flights from Ontario to Las Vegas. You can compare airfare deals from 4 airlines and multiple travel sites from $49, book and save on cheap plane tickets and last minute offers. Also check out ONT-LAS flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Ontario to Las Vegas Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $49 (one-way), $84 (round-trip).
Direct flights
  • Check to choose departure date Check to choose departure date
Check prices for return flight
Find flights
Full flight schedule will help you in detecting at what time planes fly from Ontario to Las Vegas. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
00:59 — 07:59
00:59 — 04:22 F91500 Frontier Airlines
Ontario — Denver
2h 41m stop
08:05 — 09:10 F92015 Frontier Airlines
Denver — Las Vegas
7h
including layover
Find flight
from$70
00:59 — 18:56
00:59 — 04:19 F91500 Frontier Airlines
Ontario — Denver
13h 32m stop
17:51 — 18:56 F94967 Frontier Airlines
Denver — Las Vegas
17h 57m
including layover
Find flight
from$75
00:59 — 11:02
00:59 — 04:19 F91500 Frontier Airlines
Ontario — Denver
5h 41m stop
10:00 — 11:02 F91993 Frontier Airlines
Denver — Las Vegas
10h 3m
including layover
Find flight
from$81
00:59 — 14:40
00:59 — 04:19 F91500 Frontier Airlines
Ontario — Denver
9h 14m stop
13:33 — 14:40 F92349 Frontier Airlines
Denver — Las Vegas
13h 41m
including layover
Find flight
from$82
06:00 — 07:10
06:00 — 07:10 F92232 Frontier Airlines
Ontario — Las Vegas
1h 10m
Find flight
from$49
12:37 — 13:48
12:37 — 13:48 F91358 Frontier Airlines
Ontario — Las Vegas
1h 11m
Find flight
from$49
12:48 — 20:25
12:48 — 18:19 F93132 Frontier Airlines
Ontario — Houston
55m stop
19:14 — 20:32 F94131 Frontier Airlines
Houston — Las Vegas
7h 37m
including layover
Find flight
from$70
17:21 — 23:34
17:21 — 20:44 F92908 Frontier Airlines
Ontario — Denver
1h 45m stop
22:29 — 23:34 F9777 Frontier Airlines
Denver — Las Vegas
6h 13m
including layover
Find flight
from$76
17:21 — 07:59
+1 day
17:21 — 20:44 F92908 Frontier Airlines
Ontario — Denver
10h 16m stop
07:00 — 07:59 F92015 Frontier Airlines
Denver — Las Vegas
14h 38m
including layover
Find flight
from$82
17:21 — 14:40
+1 day
17:21 — 20:44 F92908 Frontier Airlines
Ontario — Denver
16h 49m stop
13:33 — 14:40 F92349 Frontier Airlines
Denver — Las Vegas
21h 19m
including layover
Find flight
from$82
19:36 — 20:45
19:36 — 20:45 F94758 Frontier Airlines
Ontario — Las Vegas
1h 9m
Find flight
from$58
20:09 — 06:55
+1 day
20:09 — 01:24 F92924 Frontier Airlines
Ontario — Dallas
4h 36m stop
08:30 — 09:25 F91051 Frontier Airlines
Dallas — Las Vegas
10h 46m
including layover
Find flight
from$75
21:41 — 07:26
+1 day
21:41 — 23:14 F92677 Frontier Airlines
Ontario — San Francisco
6h 31m stop
05:45 — 07:26 F94158 Frontier Airlines
San Francisco — Las Vegas
9h 45m
including layover
Find flight
from$75
21:41 — 14:54
+1 day
21:41 — 23:14 F92677 Frontier Airlines
Ontario — San Francisco
13h 55m stop
16:31 — 18:17 F92486 Frontier Airlines
San Francisco — Las Vegas
17h 13m
including layover
Find flight
from$75
21:41 — 22:55
+1 day
21:41 — 23:14 F92677 Frontier Airlines
Ontario — San Francisco
22h 6m stop
21:43 — 23:23 F94156 Frontier Airlines
San Francisco — Las Vegas
25h 14m
including layover
Find flight
from$79
*Departure and arrival times - local. Updated on September 15, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Ontario to Las Vegas depends on and how to choose the most interesting flight option for you.

Distance between Ontario and Las Vegas is 317 miles. Time difference between the cities is 0h. Airplanes depart 00:59 to 21:41 from 2 Ontario airports and arrive 00:59 to 21:41 to 1 Las Vegas airport. Average flight time is 1h 10m.

  • The fastest flight 1h 9m
  • Average flight time 1h 10m
  • The earliest flight 00:59
  • The latest flight 21:41
  • Distance 197 ml

The cheapest months to travel to Las Vegas are august (from 49 $), july (from 54 $), january (from 96 $).

The most expensive months are september (from 164 $), october (from 164 $), january (from 96 $).

What is the lowest airfare Ontario to Las Vegas?

The cheapest plane ticket found by our users is $49. This airfare is for economy class on one-way F92232 flight by Frontier Airlines for July 4, 2025 which leaves Ontario Int. in Ontario at 06:00 am and arrives at Las Vegas Mccarran at 07:10.

Economy class
$49
Find
Business class
?
Find
First class
?
Find

Popular Airlines on the Route

The flight Ontario — Las Vegas is served by 4 regular airlines and 1 low-cost airline. Most of the flights on this route are operated by Alaska Airlines - 54 departures per week at the price of from $ 172 . And the most expensive tickets are offered by United Airlines airline - from $ 437.

Direct flights

There are 3 nonstop flights on the route. The fastest direct flight is F94758 by Frontier Airlines takes 1h 9m and the cheapest is F92232 by Frontier Airlines for $49.

  • F9 - Frontier Airlines
    from $49
    Find
See more direct flights

Connecting Flights

There are 206 flights with layovers on the route. The fastest connecting flight is UA2042 by United Airlines takes 3h 48m and the cheapest is F92232 by Frontier Airlines for $70.

  • AS - Alaska Airlines
    from $172
    Find
  • F9 - Frontier Airlines
    from $70
    Find
  • HA - Hawaiian Airlines
    from $157
    Find
  • UA - United Airlines
    from $178
    Find
See more connecting flights

Airports

You can fly from Ontario to Las Vegas from 2 airports (Ontario Int., International Heliport).

Ontario airports

  • Ontario Int.-ONT
    from $49
    Find
  • International Heliport-JIO
    Find

Las Vegas airports

  • Mccarran-LAS
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

Back