AirHint found the following cheapest return flights from Ontario (ONT) to Kathmandu (KTM) in June 2026 (see full year).
Return flights
| 18 Jun - 06 Jul | Alaska Airlines | ||
| 18 Jun - 31 Jul | Alaska Airlines | ||
| 18 Jun - 07 Jul | China Airlines | ||
| 19 Jun - 07 Jul | Turkish Airlines |
Also check the deals for one-way flights from Ontario to Kathmandu in June.
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