⚡ Fare recorded April 25, 2026 · Prices change daily

Seoul to Osaka flights

Seoul (ICN) to Osaka (OSA): 535 miles (860 km) great-circle, about 1h 35m nonstop by our estimate. Cheapest fare observed: $115 round-trip on T'way Air, nonstop, departing April 28, 2026.

TWT'way AirTW303
Depart
ICN
Seoul, South Korea
10:50
2026-04-28
✈
Arrive
OSA
Osaka, Japan
Returns 11:35
2026-05-08
Stops
non-stop
Distance
535 mi
Est. nonstop time
1h 35m
Trip type
Round-trip
$115
Round-trip · per person
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About this flight

When did the cheapest Seoul to Osaka fare fly?

$115 round-trip, T'way Air TW303, departing 2026-04-28 at 10:50, returning 2026-05-08. The recorded itinerary left on a Tuesday, returning on a Friday 10 nights later; the fare was observed 3 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.

Route facts

How far is Seoul from Osaka?

  • Distance: 535 miles (860 km) great-circle, heading east (measured to Kansai International Airport, KIX).
  • Estimated nonstop flight time: about 1h 35m.
  • Departure airport: Incheon International Airport (ICN), Seoul, South Korea, UTC+9 on April 28, 2026.
  • Arrival: Osaka (OSA, all airports), Japan, UTC+9 on April 28, 2026.
  • Time difference: none on the recorded date.
  • Route type: international, South Korea to Japan.
  • Recorded itinerary: T'way Air TW303, non-stop, round-trip, 10 days between departure and return.
Fare comparison

How does the Seoul to Osaka fare compare with other routes from ICN?

At $115, it ranked 2nd of the 30 round-trip fares we recorded from ICN (median $393). That is 21.5 cents per great-circle mile (round-trip price over one-way distance), close to the ICN median of 21.3 cents across 30 round-trip routes.

Routes from ICN of similar length: Shanghai (522 mi) at $183 and Beijing (560 mi) at $245.

T'way Air had the cheapest fare on 2 of 30 ICN routes. It is the 26th longest of the 30 routes we track from ICN.

Other ways in

What did other cities pay to fly to Osaka?

Of 11 departure airports with a fare to Osaka, Seoul (ICN) ranked 4th at $115. Lowest: $71 from Tokyo (NRT); highest: $1312 from Geneva (GVA); 7 nonstop. Cheapest-fare airlines (routes): Jetstar Japan (2), ANA (1), Etihad (1), Peach Aviation (1), Shandong Airlines (1) and Skymark Airlines (1), plus 4 more.

Sources

Where do these numbers come from?

Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Seoul, Asia/Tokyo; flight time is our estimate.

FAQ

Seoul to Osaka flight questions

How far is Seoul from Osaka by plane?

+
Seoul is about 535 miles (860 km) from Osaka on a great-circle line from Incheon International Airport (ICN) to Kansai International Airport (KIX), heading east. OSA is the city code that covers every commercial airport in Osaka; distances on this page are measured to Kansai International Airport (KIX). It is the 26th longest of the 30 routes we track from ICN. The recorded itinerary was nonstop.

How long is the flight from Seoul to Osaka?

+
About 1h 35m nonstop by our estimate for 535 miles (500 mph cruise plus 30 minutes, not a timetable). The recorded T'way Air fare was nonstop. 11 airports in our feed had a fare to Osaka; this one ranked 4th, and 7 of the 11 were nonstop.

What is the time difference between Seoul and Osaka?

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On April 28, 2026, Seoul was on UTC+9 (Asia/Seoul) and Osaka on UTC+9 (Asia/Tokyo), so the two cities shared the same clock time: noon in Seoul was 12:00 in Osaka. Neither Asia/Seoul nor Asia/Tokyo shifts for daylight saving, so the gap holds all year.

How much is a flight from Seoul to Osaka?

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As observed on April 25, 2026: $115 per person round-trip on T'way Air flight TW303, departing April 28, 2026, returning May 8, 2026, nonstop. At $115, it ranked 2nd of the 30 round-trip fares we recorded from ICN (median $393). That is 21.5 cents per great-circle mile (round-trip price over one-way distance), close to the ICN median of 21.3 cents across 30 round-trip routes. Prices change daily, so check the live fare.

Is there a nonstop flight from Seoul to Osaka?

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Yes, the cheapest recorded fare was a nonstop T'way Air flight, TW303, on April 28, 2026. Into Osaka, 7 of the 11 recorded fares were nonstop. From ICN, 7 of 30 were. Routes from ICN of similar length: Shanghai (522 mi) at $183 and Beijing (560 mi) at $245.

Which airports serve flights from Seoul to Osaka?

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It departs Incheon International Airport (ICN) in Seoul, South Korea, and arrives at Osaka (OSA) in Osaka, Japan. OSA is the city code that covers every commercial airport in Osaka; distances on this page are measured to Kansai International Airport (KIX). An international flight, South Korea to Japan.

Where else near Osaka can you fly from Seoul?

Tokyo (TYO) $157Busan (PUS) $232Jeju City (CJU) $78Vladivostok (VVO) $434Shanghai (SHA) $183Harbin (HRB) $231All flights from Seoul →

Other cities with flights to Osaka

From Tokyo (NRT) $71From Okinawa (OKA) $88From Tokyo (HND) $110From Shanghai (PVG) $214From Sapporo (CTS) $250From Taipei (TPE) $284

Ready to fly?

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