AirHint found the following cheapest return flights from Montreal (YUL) to Shanghai (PVG) in May 2026 (see full year).

Return flights

21 May - 28 May	Korean Air
17 May - 24 May	Korean Air
07 May - 14 May	Korean Air
05 May - 12 May	United
19 May - 26 May	United
06 May - 13 May	United
12 May - 19 May	United
06 May - 29 May	United
28 May - 04 Jun	United
01 May - 08 May	United
08 May - 15 May	United
26 May - 02 Jun	United
29 May - 05 Jun	United
31 May - 07 Jun	Korean Air
25 May - 01 Jun	Qatar Airways
30 May - 06 Jun	United

Also check the deals for one-way flights from Montreal to Shanghai in May.

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 Montreal to Shanghai in May from $1247

Return flights