Singapore to Seoul flights.

Airlines and airports

Full-service nonstops are split across Singapore Airlines, Korean Air and Asiana Airlines, all serving Incheon (ICN), the main international gateway. Scoot flies the budget end of the route into Incheon, selling seat-only fares with paid baggage and meals.

Incheon connects to central Seoul by the AREX Express Train in about 45 minutes, so airport choice is not a variable on this route the way it is for Bangkok or Tokyo. The decision here is mainly full-service comfort against the budget fare.

What fares look like

Outside peak windows, paid round-trip economy fares typically land between S$500 and S$900, with Scoot filling the bottom of the band and the full-service carriers the top, as of August 2026. Fares climb for the mid-year and December school holidays, and for the cherry-blossom and autumn-foliage weeks that draw regional visitors to Korea.

The cheapest consistent windows are late February to March, before the spring rush, and June, between the holiday peaks. Booking guidance for the wider region lives on our when to book flights to Japan page, which shares the same seasonal logic.

Booking through cashback platforms

Online travel agencies on the ShopBack network, including Trip.com and Agoda for flight-plus-hotel packages, list this route; activating cashback before checkout returns a slice of the fare. Rates change frequently and are stamped live on each store page rather than quoted here.

Route facts

• Typical fare. S$500 to S$900 round-trip economy. Typical paid fares outside school holidays and year-end peak, as of August 2026.
• Duration. About 6.5 hours nonstop
• Airlines. Singapore Airlines, Korean Air, Asiana Airlines, Scoot
• Airports. Singapore Changi Airport (SIN), Incheon International Airport (ICN), Gimpo International Airport (GMP)

How long is the flight from Singapore to Seoul?

Nonstop flights take about 6.5 hours northbound and slightly longer returning, depending on winds.

Which airlines fly nonstop from Singapore to Seoul?

Singapore Airlines, Korean Air and Asiana Airlines on the full-service side, with Scoot offering budget fares, as of August 2026.

How much is a round-trip ticket from Singapore to Seoul?

Typical paid economy fares run S$500 to S$900 round trip outside school holidays and the year-end peak, as of August 2026. Scoot anchors the low end of that band.

Which airport does the route use?

Incheon (ICN) handles the nonstops. It connects to central Seoul by the AREX Express Train in about 45 minutes, so there is no second-airport tradeoff on this route.

When are Singapore to Seoul fares cheapest?

Late February to March and June are the most consistently cheap windows. Avoid the cherry-blossom weeks, autumn foliage, and the mid-year and December school holidays.

How far in advance should I book this route?

Two to four months ahead for normal weeks and five to six months for cherry-blossom and year-end travel, similar to the Japan corridor.

Does Scoot include baggage on this route?

No. Scoot base fares are seat-only; checked baggage, meals and seat selection are paid extras, so compare the all-in price against Korean Air and Asiana fares.

Is there a red-eye option to Seoul?

Yes. Several departures leave Singapore late evening and land at Incheon in the morning, which converts the flight into a night of accommodation and adds a full first day.