Cheapest return flights from Ontario to Las Vegas in July from $270

AirHint found the following cheapest return flights from Ontario (ONT) to Las Vegas (LAS) in July 2026 (see full year).

Return flights

15 Jul - 30 Jul Southwest Airlines
15 Jul - 24 Jul Southwest Airlines
04 Jul - 11 Jul Southwest Airlines
20 Jul - 10 Aug Southwest Airlines
04 Jul - 05 Jul Southwest Airlines
30 Jul - 17 Aug Southwest Airlines
24 Jul - 26 Jul Southwest Airlines
10 Jul - 13 Jul Southwest Airlines
10 Jul - 12 Jul Southwest Airlines
13 Jul - 20 Jul Southwest Airlines
13 Jul - 18 Jul Southwest Airlines
13 Jul - 19 Jul Southwest Airlines
30 Jul - 03 Aug Southwest Airlines

Also check the deals for one-way flights from Ontario to Las Vegas in July.

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