AirHint found the following cheapest return flights from Dallas (DAL) to Seoul (ICN) in May 2026 (see full year).

Return flights

04 May - 18 May	Delta
11 May - 30 Jun	Delta
11 May - 13 Jun	Delta
01 May - 08 May	Korean Air
02 May - 09 May	Korean Air
03 May - 10 May	Korean Air
04 May - 11 May	Korean Air
02 May - 21 May	Korean Air
01 May - 21 May	Korean Air
28 May - 06 Jun	Delta
26 May - 16 Jun	Delta
27 May - 16 Jun	Delta
27 May - 24 Jun	Delta
20 May - 05 Jun	Delta
25 May - 27 May	Delta

Also check the deals for one-way flights from Dallas to Seoul 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 Dallas to Seoul in May from 1387€

Return flights