Route · ICN → SIN
Flights from Seoul to Singapore
Spanning roughly 4,625 km between Incheon and Changi, this Southeast Asia trunk route clocks in at about five hours and fifty minutes block time, making it a comfortable single-leg hop that connects two of Asia's busiest hub airports. Korean Air and Asiana Airlines together dominate the route for Korean-side travelers, typically deploying widebody equipment such as the Boeing 777 or Airbus A330, while Singapore Airlines operates the sector as part of its dense Northeast Asia network; Air India also tracks the pairing as a connecting bridge between South Asia itineraries. Practically, Singapore's visa-free entry for South Korean passport holders removes a common planning headache, and Changi's efficient T2-T3 layout means domestic-to-international transits generally clear comfortably within two hours. On fares, shoulder seasons in May and September often yield the softest pricing, while business-class award availability on SQ and KE tends to open up on midweek departures outside Korean school-holiday windows.
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Cheapest dates to fly
Live prices · powered by AviasalesThe calendar below pulls live fares from our search partner for Seoul (ICN) → Singapore (SIN). Use the year view… to spot the cheapest week to fly, the day-of-week patterns most travellers miss, and any shoulder-season dips worth shifting your trip around. Prices refresh every few hours, so what you see is what your booking page should look like a moment later — click any date to jump straight to the fare on Aviasales.
Airlines on this route
5 carriersThe 5 carriers we currently track on the Seoul–Singapore route, from full-service flag carriers to low-cost competitors. Tap any airline for its full profile, baggage… rules, fleet context, and a live fare search pre-filtered to that carrier — useful if you're loyal to a frequent-flyer programme, want to compare onboard product on the same dates, or are weighing a cheaper one-stop against a pricier nonstop.
Flights from Seoul to Singapore
Live schedule · powered by AviasalesBelow is the published weekly schedule for nonstop and one-stop services from Seoul to Singapore — the actual flight numbers, departure and arrival times your… booking page will pull from. Use it to plan around departure preferences (early morning vs late evening), see which carriers fly on which weekdays, or pick a connection that lets you sleep in your own bed before a long-haul leg. Click any row to load it directly in the search.
Airport guides
Quick links into the airport profiles at both ends of the route. Each guide covers terminal layout, the airlines that base hubs at ICN and… SIN, the other routes those airports serve, and the ground-transit options most travellers wish they'd read about before landing — the practical context you only really need to know once you've booked, but want to skim before you do.