Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Fredericton to Seoul as you normally would.
Air Canada and Delta are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.
Looking at all options, your cheapest flight can be booked for C$ 1,481. While the most popular route (Fredericton - Seoul Gimpo Intl) can be booked for C$ 2,100 on average our data indicates C$ 1,625 when flying from Fredericton to Seoul.