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Tokyo to Seoul flights in December 2026 from $240 HND, NRT → GMP, ICN

Haneda Airport (HND), Narita International Airport (NRT) → Gimpo International Airport (GMP), Incheon International Airport (ICN)

For departures in December 2026, the cheapest return found recently is $240 with Air Seoul, 3 Dec – 10 Dec, found 2 days ago.

Return

In December 2026, the cheapest return fare on each of 11 departure dates is usually $236 to $416. Across all 53 departure dates we hold on this route, it is usually $231 to $315. Of the 6 months with enough return fares to compare, 3 are usually cheaper than December 2026.

Cheapest return found recently

$240

3 Dec – 10 Dec · Air Seoul

Narita International Airport (NRT) → Incheon International Airport (ICN)

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$212

14 Dec – 16 Dec · ZIPAIR

Narita International Airport (NRT) → Incheon International Airport (ICN)

out nonstop, back nonstop

found 8 days ago

See prices for these datesCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
14 Dec – 16 Dec$212ZIPAIRout nonstop, back nonstopfound 8 days agoSee prices for these dates
9 Dec – 11 Dec$231Air Seoulout nonstop, back nonstopfound 7 days agoSee prices for these dates
8 Dec – 11 Dec$234Air Seoulout nonstop, back nonstopfound 4 days agoSee prices for these dates
15 Dec – 18 Dec$237Jeju Airout nonstop, back nonstopfound 7 days agoSee prices for these dates
3 Dec – 10 Dec$240Air Seoulout nonstop, back nonstopfound 2 days agoSee prices for these dates

Every date we hold

11 departure dates

3 Dec – 10 Dec: $240, found 2 days ago5 Dec – 20 Dec: $263, found 6 days ago8 Dec – 11 Dec: $234, found 4 days ago9 Dec – 11 Dec: $231, found 7 days ago14 Dec – 16 Dec: $212, found 8 days ago15 Dec – 18 Dec: $237, found 7 days ago21 Dec – 3 Jan 2027: $315, found 2 days ago26 Dec – 31 Dec: $388, found 4 days ago27 Dec – 3 Jan 2027: $486, found 4 days ago28 Dec – 4 Jan 2027: $443, found 4 days ago29 Dec – 2 Jan 2027: $483, found 3 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
3 Dec – 10 Dec$240Air SeoulNarita International Airport (NRT) → Incheon International Airport (ICN)out nonstop, back nonstopfound 2 days agoSee prices for these dates
5 Dec – 20 Dec$263ZIPAIRNarita International Airport (NRT) → Incheon International Airport (ICN)out nonstop, back nonstopfound 6 days agoSee prices for these dates
8 Dec – 11 Dec$234Air SeoulNarita International Airport (NRT) → Incheon International Airport (ICN)out nonstop, back nonstopfound 4 days agoSee prices for these dates
9 Dec – 11 Dec$231Air SeoulNarita International Airport (NRT) → Incheon International Airport (ICN)out nonstop, back nonstopfound 7 days agoSee prices for these dates
14 Dec – 16 Dec$212ZIPAIRNarita International Airport (NRT) → Incheon International Airport (ICN)out nonstop, back nonstopfound 8 days agoSee prices for these dates
15 Dec – 18 Dec$237Jeju AirNarita International Airport (NRT) → Incheon International Airport (ICN)out nonstop, back nonstopfound 7 days agoSee prices for these dates
21 Dec – 3 Jan 2027$315ZIPAIRNarita International Airport (NRT) → Incheon International Airport (ICN)out nonstop, back 1 stopfound 2 days agoSee prices for these dates
26 Dec – 31 Dec$388ZIPAIRNarita International Airport (NRT) → Incheon International Airport (ICN)out nonstop, back nonstopfound 4 days agoSee prices for these dates
27 Dec – 3 Jan 2027$486ZIPAIRNarita International Airport (NRT) → Incheon International Airport (ICN)out nonstop, back nonstopfound 4 days agoSee prices for these dates
28 Dec – 4 Jan 2027$443ZIPAIRNarita International Airport (NRT) → Incheon International Airport (ICN)out nonstop, back 3 stopsfound 4 days agoSee prices for these dates
29 Dec – 2 Jan 2027$483ZIPAIRNarita International Airport (NRT) → Incheon International Airport (ICN)out nonstop, back nonstopfound 3 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $209.

November 2026From $209Cheapest seen13 departure dates25 Nov – 30 Nov · found 8 days agoSee prices for these datesEvery date in November 2026
December 2026From $21211 departure dates14 Dec – 16 Dec · found 8 days agoSee prices for these dates
January 2027From $2686 departure dates27 Jan 2027 – 3 Feb 2027 · found 4 days agoSee prices for these dates
February 2027From $3092 departure dates8 Feb 2027 – 13 Feb 2027 · found 6 days agoSee prices for these dates
March 2027From $2287 departure dates31 Mar 2027 – 10 Apr 2027 · found 7 days agoSee prices for these datesEvery date in March 2027
April 2027From $2276 departure dates7 Apr 2027 – 17 Apr 2027 · found 7 days agoSee prices for these dates
May 2027From $2183 departure dates22 May 2027 – 26 May 2027 · found 4 days agoSee prices for these dates
June 2027From $2272 departure dates3 Jun 2027 – 7 Jun 2027 · found 3 days agoSee prices for these datesEvery date in June 2027
August 2027From $2271 departure date23 Aug 2027 – 28 Aug 2027 · found 3 days agoSee prices for these dates
October 2027From $2602 departure dates22 Oct 2027 – 25 Oct 2027 · found 3 days agoSee prices for these datesEvery date in October 2027

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work