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

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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).

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Best Flights from Ontario to Las Vegas Today

Take a look at the list of non stop flights and flights with layovers from Ontario to Las Vegas with the lowest price of $49. The fastest direct flight takes 1h 9m and the fastest connecting – 3h 48m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $49 Find flight	06:00 Ontario Ontario Int.	07:10 Las Vegas Mccarran	1h 10m	Frontier Airlines	F92232
from $58 Find flight	19:36 Ontario Ontario Int.	20:45 Las Vegas Mccarran	1h 9m	Frontier Airlines	F94758
from $70 Find flight	00:59 Ontario Ontario Int.	07:59 Las Vegas Mccarran	7h 0m layover 2h 41m - Denver	Frontier Airlines	F91500 F92015
from $82 Find flight	17:21 Ontario Ontario Int.	07:59+1 день Las Vegas Mccarran	14h 38m layover 10h 16m - Denver	Frontier Airlines	F92908 F92015

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on September 15, 2025

Flight Schedule Ontario (California) to Las Vegas (Nevada)

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	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	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*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

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Business class

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First class

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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

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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

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F9 - Frontier Airlines

from $70

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HA - Hawaiian Airlines

from $157

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UA - United Airlines

from $178

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Airports

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

Ontario airports

Ontario Int.-ONT

from $49
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International Heliport-JIO

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Las Vegas airports

Mccarran-LAS

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Airplanes

There are flights to Las Vegas from Ontario by 4 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Ontario

You may also consider searching for discounted plane tickets to some other popular places from Ontario within United States.

Ontario — Phoenix

from $56

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Ontario — Denver

from $65

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Ontario — Austin

from $67

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Ontario — Miami

from $62

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Ontario — Tucson

from $80

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Ontario — Las Vegas

from $63

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Ontario — Seattle

from $65

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Ontario — Boise

from $70

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Ontario — Chicago

from $78

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Ontario — Philadelphia

from $62

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Top International Destinations from Ontario

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Ontario — London

from $62

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Ontario — San Jose

from $61

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Ontario — Guadalajara

from $70

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Ontario — Cancun

from $74

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How to book a plane 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.
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