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Taipei to Seoul flights in December 2026 from $111 TPE, TSA → GMP, ICN

Taiwan Taoyuan International Airport (TPE), Taipei Songshan Airport (TSA) → Gimpo International Airport (GMP), Incheon International Airport (ICN)

For departures in December 2026, the cheapest return found recently is $198 with Tigerair Taiwan, 2 Dec – 5 Dec, found 5 days ago. The cheapest one-way found recently is $111 with T'way Air, 20 Dec, found 2 days ago.

Return

We hold return fares on only 2 departure dates in December 2026, too few to say what one usually costs.

Cheapest return found recently

$198

2 Dec – 5 Dec · Tigerair Taiwan

Taiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)

out nonstop, back nonstop

found 5 days ago

See prices for these datesCheck today's price

It is also the cheapest return we hold, of any age.

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
2 Dec – 5 Dec$198Tigerair Taiwanout nonstop, back nonstopfound 5 days agoSee prices for these dates
29 Dec – 3 Jan 2027$253Scootout nonstop, back 1 stopfound 6 days agoSee prices for these dates

Every date we hold

2 departure dates

2 Dec – 5 Dec: $198, found 5 days ago29 Dec – 3 Jan 2027: $253, found 6 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
2 Dec – 5 Dec$198Tigerair TaiwanTaiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)out nonstop, back nonstopfound 5 days agoSee prices for these dates
29 Dec – 3 Jan 2027$253ScootTaiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)out nonstop, back 1 stopfound 6 days agoSee prices for these dates

Which month looks cheapest?

March 2027 is the cheapest month — from $177.

November 2026From $2713 departure dates22 Nov – 27 Nov · found 4 days agoSee prices for these dates
December 2026From $1982 departure dates2 Dec – 5 Dec · found 5 days agoSee prices for these dates
January 2027From $2635 departure dates6 Jan 2027 – 13 Jan 2027 · found 3 days agoSee prices for these dates
February 2027From $2483 departure dates19 Feb 2027 – 21 Feb 2027 · found 5 days agoSee prices for these dates
March 2027From $177Cheapest seen1 departure date21 Mar 2027 – 25 Mar 2027 · found 3 days agoSee prices for these dates
April 2027From $3501 departure date1 Apr 2027 – 6 Apr 2027 · found 4 days agoSee prices for these dates
July 2027From $1931 departure date8 Jul 2027 – 15 Jul 2027 · found 4 days agoSee prices for these dates

One-way

In December 2026, the cheapest one-way fare on each of 10 departure dates is usually $102 to $125. Across all 22 departure dates we hold on this route, it is usually $102 to $125. Of the 3 months with enough one-way fares to compare, 1 is usually cheaper than December 2026.

Cheapest one-way found recently

$111

20 Dec · T'way Air

Taiwan Taoyuan International Airport (TPE) → Gimpo International Airport (GMP)

1 stop

found 2 days ago

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Cheapest we hold, of any age

$83

29 Dec · Tigerair Taiwan

Taiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)

nonstop

found 7 days ago

Open this tripCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
29 Dec$83Tigerair Taiwannonstopfound 7 days agoOpen this trip
14 Dec$98Eastar Jetnonstopfound 6 days agoOpen this trip
7 Dec$101T'way Air1 stopfound 3 days agoOpen this trip
17 Dec$104Jin Air1 stopfound 6 days agoOpen this trip
16 Dec$105Tigerair Taiwannonstopfound 6 days agoOpen this trip

Every date we hold

10 departure dates

7 Dec: $101, found 3 days ago11 Dec: $119, found 6 days ago12 Dec: $158, found 6 days ago13 Dec: $127, found 6 days ago14 Dec: $98, found 6 days ago16 Dec: $105, found 6 days ago17 Dec: $104, found 6 days ago20 Dec: $111, found 2 days ago28 Dec: $168, found 2 days ago29 Dec: $83, found 7 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
7 Dec$101T'way AirTaiwan Taoyuan International Airport (TPE) → Gimpo International Airport (GMP)1 stopfound 3 days agoOpen this trip
11 Dec$119Jin AirTaiwan Taoyuan International Airport (TPE) → Gimpo International Airport (GMP)1 stopfound 6 days agoOpen this trip
12 Dec$158Eastar JetTaipei Songshan Airport (TSA) → Gimpo International Airport (GMP)nonstopfound 6 days agoOpen this trip
13 Dec$127T'way AirTaiwan Taoyuan International Airport (TPE) → Gimpo International Airport (GMP)1 stopfound 6 days agoOpen this trip
14 Dec$98Eastar JetTaiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)nonstopfound 6 days agoOpen this trip
16 Dec$105Tigerair TaiwanTaiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)nonstopfound 6 days agoOpen this trip
17 Dec$104Jin AirTaiwan Taoyuan International Airport (TPE) → Gimpo International Airport (GMP)1 stopfound 6 days agoOpen this trip
20 Dec$111T'way AirTaiwan Taoyuan International Airport (TPE) → Gimpo International Airport (GMP)1 stopfound 2 days agoOpen this trip
28 Dec$168T'way AirTaipei Songshan Airport (TSA) → Gimpo International Airport (GMP)nonstopfound 2 days agoOpen this trip
29 Dec$83Tigerair TaiwanTaiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)nonstopfound 7 days agoOpen this trip

Which month looks cheapest?

December 2026 is the cheapest month — from $83.

December 2026From $83Cheapest seen10 departure dates29 Dec · found 7 days agoOpen this trip
January 2027From $1311 departure date31 Jan 2027 · found 6 days agoOpen this trip
February 2027From $1163 departure dates18 Feb 2027 · found 2 days agoOpen this trip
March 2027From $1061 departure date20 Mar 2027 · found 5 days agoOpen this trip
April 2027From $923 departure dates26 Apr 2027 · found 2 days agoOpen this trip
May 2027From $892 departure dates31 May 2027 · found 2 days agoOpen this trip
July 2027From $862 departure dates6 Jul 2027 · found 5 days agoOpen this trip

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