$134 Cheap United flights Las Vegas (LAS) to Ontario (ONT)

View $134 flight on Mon, Apr 27, 2026Opens in a new window

$134 Cheap United flights Las Vegas (LAS) to Ontario (ONT)

Prices were available within the past 7 days and start at $134 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Jun 3 - Sun, Jun 14
LAS
Las Vegas
ONT
Ontario
$179 Roundtrip, found 4 days ago
$179
Roundtrip
found 4 days ago
Select United flight, departing Wed, Jun 3 from Las Vegas to Ontario, returning Sun, Jun 14, priced at $179 found 4 days ago
United
Mon, Jun 1 - Sat, Jun 13
LAS
Las Vegas
ONT
Ontario
$255 Roundtrip, found 2 days ago
$255
Roundtrip
found 2 days ago
Select United flight, departing Mon, Jun 1 from Las Vegas to Ontario, returning Sat, Jun 13, priced at $255 found 2 days ago

Find the cheapest month to fly from Las Vegas (LAS) to Ontario (ONT)

October is typically the cheapest month to fly

From $48 - $129 per traveler.

Travel information

Origin airport
Harry Reid Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
American Airlines, Frontier Airlines, Southwest Airlines, United
Popular airline
Frontier Airlines
Distance
314 km
Average flight time
1 hour 2 mins

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