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Taipei to Seoul in December 2026 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 $225 with Tigerair Taiwan, 14 Dec – 20 Dec, found 2 days ago. The cheapest one-way found recently is $198 with T'way Air, 16 Dec, found yesterday.

Return

In December 2026, the cheapest return fare on each of 8 departure dates is usually $220 to $297. Across all 33 departure dates we hold on this route, it is usually $213 to $319. Of the 5 months with enough return fares to compare, 1 is usually cheaper than December 2026.

Cheapest return found recently

$225

14 Dec – 20 Dec · Tigerair Taiwan

Taiwan Taoyuan International Airport (TPE) → 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

$195

1 Dec – 16 Dec · Tigerair Taiwan

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

out nonstop, back nonstop

found 3 days ago

See prices for these datesCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
1 Dec – 16 Dec$195Tigerair Taiwanout nonstop, back nonstopfound 3 days agoSee prices for these dates
12 Dec – 16 Dec$204Tigerair Taiwanout nonstop, back nonstopfound 3 days agoSee prices for these dates
14 Dec – 20 Dec$225Tigerair Taiwanout nonstop, back nonstopfound 2 days agoSee prices for these dates
15 Dec – 15 Dec$233Eastar Jetout 1 stop, back 1 stopfound 6 days agoSee prices for these dates
2 Dec – 5 Dec$239Tigerair Taiwanout nonstop, back nonstopfound 5 days agoSee prices for these dates

Every date we hold

8 departure dates

1 Dec – 16 Dec: $195, found 3 days ago2 Dec – 5 Dec: $239, found 5 days ago10 Dec – 14 Dec: $297, found 3 days ago12 Dec – 16 Dec: $204, found 3 days ago14 Dec – 20 Dec: $225, found 2 days ago15 Dec – 15 Dec: $233, found 6 days ago23 Dec – 27 Dec: $298, found 2 days ago25 Dec – 2 Jan 2027: $301, found 4 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec – 16 Dec$195Tigerair TaiwanTaiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)out nonstop, back nonstopfound 3 days agoSee prices for these dates
2 Dec – 5 Dec$239Tigerair TaiwanTaiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)out nonstop, back nonstopfound 5 days agoSee prices for these dates
10 Dec – 14 Dec$297Eastar JetTaipei Songshan Airport (TSA) → Gimpo International Airport (GMP)out nonstop, back nonstopfound 3 days agoSee prices for these dates
12 Dec – 16 Dec$204Tigerair TaiwanTaiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)out nonstop, back nonstopfound 3 days agoSee prices for these dates
14 Dec – 20 Dec$225Tigerair TaiwanTaiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)out nonstop, back nonstopfound 2 days agoSee prices for these dates
15 Dec – 15 Dec$233Eastar JetTaiwan Taoyuan International Airport (TPE) → Gimpo International Airport (GMP)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
23 Dec – 27 Dec$298Tigerair TaiwanTaiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)out nonstop, back 1 stopfound 2 days agoSee prices for these dates
25 Dec – 2 Jan 2027$301ScootTaiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)out nonstop, back 1 stopfound 4 days agoSee prices for these dates

Which month looks cheapest?

June 2027 is the cheapest month — from $160.

October 2026From $4001 departure date23 Oct – 26 Oct · found 3 days agoSee prices for these dates
November 2026From $21310 departure dates23 Nov – 25 Nov · found 5 days agoSee prices for these datesEvery date in November 2026
December 2026From $1958 departure dates1 Dec – 16 Dec · found 3 days agoSee prices for these dates
January 2027From $2596 departure dates19 Jan 2027 – 23 Jan 2027 · found 5 days agoSee prices for these dates
February 2027From $2053 departure dates18 Feb 2027 – 24 Feb 2027 · found 3 days agoSee prices for these dates
April 2027From $1663 departure dates13 Apr 2027 – 17 Apr 2027 · found 5 days agoSee prices for these dates
June 2027From $160Cheapest seen1 departure date14 Jun 2027 – 16 Jun 2027 · found yesterdaySee prices for these dates
July 2027From $1991 departure date23 Jul 2027 – 2 Aug 2027 · found 5 days agoSee prices for these dates

One-way

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

Cheapest one-way found recently

$198

16 Dec · T'way Air

Taipei Songshan Airport (TSA) → Gimpo International Airport (GMP)

nonstop

found yesterday

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Cheapest we hold, of any age

$129

10 Dec · Tigerair Taiwan

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

nonstop

found 5 days ago

Open this tripCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
10 Dec$129Tigerair Taiwannonstopfound 5 days agoOpen this trip
16 Dec$198T'way Airnonstopfound yesterdayOpen this trip

Every date we hold

2 departure dates

10 Dec: $129, found 5 days ago16 Dec: $198, found yesterdayDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
10 Dec$129Tigerair TaiwanTaiwan Taoyuan International Airport (TPE) → Incheon International Airport (ICN)nonstopfound 5 days agoOpen this trip
16 Dec$198T'way AirTaipei Songshan Airport (TSA) → Gimpo International Airport (GMP)nonstopfound yesterdayOpen this trip

Which month looks cheapest?

April 2027 is the cheapest month — from $87.

October 2026From $1054 departure dates28 Oct · found 3 days agoOpen this trip
November 2026From $1235 departure dates27 Nov · found 3 days agoOpen this tripEvery date in November 2026
December 2026From $1292 departure dates10 Dec · found 5 days agoOpen this trip
January 2027From $1473 departure dates31 Jan 2027 · found todayOpen this trip
March 2027From $1551 departure date20 Mar 2027 · found 3 days agoOpen this trip
April 2027From $87Cheapest seen1 departure date7 Apr 2027 · found 3 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