AirHint found the following cheapest return flights from Monterrey (MTY) to Seoul (ICN) in July 2025 (see full year).

Return flights

21 Jul - 25 Jul	Viva
28 Jul - 11 Aug	Viva
26 Jul - 11 Aug	Viva
27 Jul - 11 Aug	Viva
25 Jul - 08 Aug	Viva
31 Jul - 16 Aug	Viva
22 Jul - 06 Aug	Alaska Airlines
25 Jul - 09 Aug	Viva
23 Jul - 09 Aug	Viva
26 Jul - 09 Aug	Viva
27 Jul - 10 Aug	Viva
24 Jul - 31 Jul	Viva
22 Jul - 29 Jul	Alaska Airlines

Also check the deals for one-way flights from Monterrey to Seoul in July.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Monterrey to Seoul in July from 1227€

Return flights