AirHint found the following cheapest return flights from Seoul (GMP) to Shanghai (PVG) in March 2026 (see full year).

Return flights

11 Mar - 15 Mar	China Southern
09 Mar - 11 Mar	Jin Air
20 Mar - 22 Mar	Air China
21 Mar - 24 Mar	Air China
20 Mar - 23 Mar	Air China
13 Mar - 16 Mar	Air China
27 Mar - 30 Mar	Air China
11 Mar - 09 Apr	Jin Air
13 Mar - 15 Mar	Air China
19 Mar - 22 Mar	Air China
12 Mar - 22 Mar	T'way Air
31 Mar - 19 Apr	Air China
28 Mar - 01 Apr	Korean Air
28 Mar - 13 Apr	Korean Air
28 Mar - 02 Apr	Korean Air
29 Mar - 02 Apr	Korean Air
05 Mar - 01 Apr	Air China
28 Mar - 06 Apr	Korean Air
29 Mar - 06 Apr	Korean Air
28 Mar - 27 Apr	Korean Air

Also check the deals for one-way flights from Seoul to Shanghai in March.

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 Seoul to Shanghai in March from $145

Return flights