AirHint found the following cheapest return flights from Ontario (ONT) to Seoul (ICN)
in May 2025 (see full year ).
Return flights
07 May
- 20 May
China Airlines
$ 990
01 May
- 15 May
China Airlines
$ 992
01 May
- 11 May
China Airlines
$ 992
01 May
- 25 May
China Airlines
$ 992
07 May
- 13 May
China Airlines
$ 992
01 May
- 27 May
China Airlines
$ 994
01 May
- 05 May
China Airlines
$ 994
01 May
- 13 May
China Airlines
$ 994
01 May
- 18 May
China Airlines
$ 994
01 May
- 29 May
China Airlines
$ 994
06 May
- 03 Jun
China Airlines
$ 994
08 May
- 04 Jun
China Airlines
$ 994
08 May
- 27 Jun
China Airlines
$ 1026
12 May
- 13 Jun
China Airlines
$ 1058
03 May
- 07 Jun
China Airlines
$ 1063
13 May
- 07 Jun
China Airlines
$ 1089
29 May
- 19 Jun
Hawaiian Airlines
$ 1257
29 May
- 07 Jun
Hawaiian Airlines
$ 1257
29 May
- 18 Jun
Hawaiian Airlines
$ 1257
29 May
- 20 Jun
Hawaiian Airlines
$ 1257
Also check the deals for one-way flights from Ontario 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.
