Flight Routes from Ontario to Las Vegas

Trip type

Our cheapest offers for flights from Ontario to Las Vegas

Here you can compare cheap flights from Ontario (ONT) to Las Vegas (LAS) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Las Vegas. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Ontario
Las Vegas
Outbound
08/11/26
direct
F94206
01h 10min
Return
08/18/26
direct
F92231
01h 05min
Frontier Airlines
$167
Ontario
Las Vegas
Outbound
08/11/26
direct
F94206
01h 10min
Return
08/18/26
direct
F91357
01h 13min
Frontier Airlines
$178
Ontario
Las Vegas
Outbound
06/25/26
direct
F94206
01h 10min
Return
06/30/26
direct
F91357
01h 13min
Frontier Airlines
$179
Ontario
Las Vegas
Outbound
07/07/26
direct
F94206
01h 10min
Return
07/13/26
direct
F91357
01h 13min
Frontier Airlines
$191
Ontario
Las Vegas
Outbound
07/07/26
direct
F94206
01h 10min
Return
07/13/26
direct
F92231
01h 05min
Frontier Airlines ?
$193
Ontario
Las Vegas
Outbound
06/25/26
direct
F94206
01h 10min
Return
06/30/26
direct
F91357
01h 13min
Frontier Airlines ?
$228
Ontario
Las Vegas
Outbound
08/11/26
1 Stopover (PHX)
AA6508, AA2106
05h 05min
Return
08/18/26
1 Stopover (PHX)
AA1505, AA6508
03h 24min
American Airlines ?
$286
Ontario
Las Vegas
Outbound
08/11/26
1 Stopover (PHX)
AA1666, AA2106
02h 57min
Return
08/18/26
1 Stopover (PHX)
AA1541, AA1238
05h 09min
American Airlines ?
$316
Ontario
Las Vegas
Outbound
07/07/26
1 Stopover (DEN)
UA2446, UA0526
07h 24min
Return
07/13/26
1 Stopover (SFO)
UA2356, UA2661
04h 57min
United Airlines ?
$346
Ontario
Las Vegas
Outbound
07/07/26
direct
F94206
01h 10min
Return
07/13/26
1 Stopover (SEA)
AS0701, AS0565
07h 13min
Frontier Airlines ?
$397
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Ontario to Las Vegas

Favorite airline: Frontier Airlines
Most travelers looking for flights on the route from Ontario to Las Vegas decide to book flights with Frontier Airlines.
Frontier Airlines
94 %
American Airlines
6 %
Cheapest weekday: Sunday
Compared to other weekdays, flights are cheapest on Sunday.
Stopover flights are the cheapest connection
Direct flights on this route are $16.00 more expensive on average than flights with a stopover.
non stop flight
1 stop
01h 14min
05h 38min
$109
$93
The favorite connection is non-stop
Non-stop flights are especially popular on this route. 89 % of travelers will book a direct flight.
Route
bookings
Direct flights
01h 14min, from $109
89 %
1 stopover Phoenix - Sky Harbor International Airport
05h 38min, from $93
11 %

Important flight information

Flight information: Ontario - Las Vegas

Roundtrip from $166.97
Flight duration min. 01:00 / max. 06:10
Return flight duration min. 00:55/ max. 01:05
Distance 317 km
Flights per week 38
Departure airport Airport Ontario-CA (ONT)
Arrival airport Airport Las Vegas - McCarran International Airport, NV (LAS)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Las Vegas
Flight destinations with a similar price