Seoul (ICN) to Shanghai (SHA): 522 miles (840 km) great-circle, about 1h 35m nonstop by our estimate. Cheapest fare observed: $183 round-trip on China Eastern, with 1 stop, departing May 26, 2026.
$183 round-trip, China Eastern MU5022, departing 2026-05-26 at 14:15, returning 2026-05-27. The recorded itinerary left on a Tuesday, returning on a Wednesday 1 night later; the fare was observed 31 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $183, it ranked 4th of the 30 round-trip fares we recorded from ICN (median $393). That is 35.0 cents per great-circle mile (round-trip price over one-way distance), above the ICN median of 21.3 cents across 30 round-trip routes.
Routes from ICN of similar length: Osaka (535 mi) at $115 and Vladivostok (507 mi) at $434.
China Eastern had the cheapest fare on 5 of 30 ICN routes. It is the 27th longest of the 30 routes we track from ICN.
Of 32 departure airports with a fare to Shanghai, Seoul (ICN) ranked 1st at $183. Lowest: $183 from Seoul (ICN); highest: $1810 from Buenos Aires (EZE); 11 nonstop. Cheapest-fare airlines (routes): Spring Airlines (5), AirAsia (3), China Eastern (3), Air China (2), Qatar (2) and Xiamen Airlines (2), plus 15 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Seoul, Asia/Shanghai; flight time is our estimate.