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Cheap flights from Ontario (ONT) to Las Vegas (LAS)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Ontario (ONT) to Las Vegas (LAS)

How to find the cheapest flight from Ontario (ONT) to Las Vegas (LAS)
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How to find the cheapest flight from Ontario (ONT) to Las Vegas (LAS)
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How to find the cheapest flight from Ontario (ONT) to Las Vegas (LAS)
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Cheap flights from Ontario to Las Vegas in April , May 2026

28 Apr - 26 May $ 56.00
ONT
Ontario
Frontier Airlines
DIRECT
LAS
Las Vegas
LAS
Las Vegas
Frontier Airlines
DIRECT
ONT
Ontario
Pick dates
12 Apr - 04 May $ 139.00
ONT
Ontario
Frontier Airlines
1 STOPS
LAS
Las Vegas
LAS
Las Vegas
Frontier Airlines
DIRECT
ONT
Ontario
Pick dates
11 Apr - 04 May $ 222.00
ONT
Ontario
Frontier Airlines
DIRECT
LAS
Las Vegas
LAS
Las Vegas
Frontier Airlines
DIRECT
ONT
Ontario
Pick dates

Last minute flights from Ontario to Las Vegas

28 Apr - 30 Apr $ 56.00
ONT
Ontario
Frontier Airlines
DIRECT
LAS
Las Vegas
LAS
Las Vegas
Frontier Airlines
DIRECT
ONT
Ontario
Pick dates
12 Apr - 30 Apr $ 139.00
ONT
Ontario
Frontier Airlines
1 STOPS
LAS
Las Vegas
LAS
Las Vegas
Frontier Airlines
DIRECT
ONT
Ontario
Pick dates
11 Apr - 30 Apr $ 222.00
ONT
Ontario
Frontier Airlines
DIRECT
LAS
Las Vegas
LAS
Las Vegas
Frontier Airlines
DIRECT
ONT
Ontario
Pick dates

One-way flights to Las Vegas from Ontario

7:44 PM - 7:44 PM
Frontier Airlines
0 Stops
1h 10m
ONT - LAS
$ 28
Kiwi
Pick dates
8:49 AM - 11:20 AM
Frontier Airlines
1 Stops
4h 24m
ONT - LAS
$ 111
Kiwi
Pick dates
8:19 PM - 8:19 PM
Frontier Airlines
0 Stops
1h 9m
ONT - LAS
$ 194
Kiwi
Pick dates

How to find the cheapest flight from Ontario (ONT) to Las Vegas (LAS)

Related info for your journey
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How to find the cheapest flight from Ontario (ONT) to Las Vegas (LAS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Ontario (ONT) to Las Vegas (LAS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.