AirHint found the following cheapest return flights from Kolkata (CCU) to Shanghai (PVG) in August 2025 (see full year).

Return flights

26 Aug - 31 Aug	Singapore Airlines
31 Aug - 04 Sep	Singapore Airlines
21 Aug - 31 Aug	Singapore Airlines
31 Aug - 09 Sep	AirAsia
10 Aug - 16 Aug	Singapore Airlines
28 Aug - 09 Sep	AirAsia
28 Aug - 31 Aug	AirAsia
28 Aug - 04 Sep	AirAsia
31 Aug - 19 Sep	IndiGo
21 Aug - 09 Sep	AirAsia
21 Aug - 04 Sep	AirAsia
31 Aug - 21 Sep	AirAsia
21 Aug - 28 Aug	AirAsia

Also check the deals for one-way flights from Kolkata to Shanghai in August.

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 Kolkata to Shanghai in August from $350

Return flights