Cheapest return flights from Ontario to Las Vegas in January from 100€

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

Return flights

28 Jan - 04 Feb Frontier Airlines direct
27 Jan - 29 Jan Frontier Airlines direct
28 Jan - 30 Jan Frontier Airlines direct
31 Jan - 02 Feb Frontier Airlines
31 Jan - 02 Feb Frontier Airlines direct
25 Jan - 28 Jan Frontier Airlines direct
29 Jan - 31 Jan Frontier Airlines direct
25 Jan - 29 Jan Frontier Airlines direct
27 Jan - 31 Jan Frontier Airlines direct
28 Jan - 29 Jan Frontier Airlines direct
31 Jan - 01 Feb Frontier Airlines direct
30 Jan - 02 Feb Frontier Airlines direct
26 Jan - 28 Jan Frontier Airlines direct
25 Jan - 25 Jan Frontier Airlines direct
22 Jan - 22 Jan Frontier Airlines direct
29 Jan - 01 Feb Frontier Airlines direct
31 Jan - 07 Feb Southwest Airlines
25 Jan - 07 Feb Southwest Airlines direct
30 Jan - 03 Feb Southwest Airlines
30 Jan - 05 Feb Southwest Airlines direct

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

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