Kaohsiung to Seoul KHH → GMP, ICN
Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP), Incheon International Airport (ICN)
The cheapest return found recently is $290 with T'way Air, 26 Feb 2027 – 17 Mar 2027, found 2 days ago. The cheapest one-way found recently is $106 with T'way Air, 27 Nov, found 3 days ago.
Return
The cheapest return fare on each of 4 departure dates is usually $233 to $287.
Cheapest return found recently
$290
26 Feb 2027 – 17 Mar 2027 · T'way Air
Kaohsiung International Airport (KHH) → Incheon International Airport (ICN)
Leaves 5:00 p.m. · Return leaves 10:50 a.m. · 6 h of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Cheapest nonstop return
$290
26 Feb 2027 – 17 Mar 2027 · T'way Air
Kaohsiung International Airport (KHH) → Incheon International Airport (ICN)
Leaves 5:00 p.m. · Return leaves 10:50 a.m. · 6 h of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$290 26 Feb 2027 – 17 Mar 2027found 2 days agoSee prices for these dates
$228 27 Nov – 1 Decfound 5 days agoSee prices for these dates
What have prices looked like?
Over 24 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $211 to $265.
At $290, the cheapest return found recently is above that range.
24 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 4 departure dates from 5 Nov to 26 Feb 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 19-night return fares leaving within 3 days of 26 Feb 2027 to compare.
Every date we hold
4 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 5 Nov – 10 Nov | $235 | Tigerair Taiwan | Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 9 Nov – 15 Nov | $286 | Tigerair Taiwan | Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 27 Nov – 1 Dec | $228 | T'way Air | Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 26 Feb 2027 – 17 Mar 2027 | $290 | T'way Air | Kaohsiung International Airport (KHH) → Incheon International Airport (ICN) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $228.
Airlines on the cheapest dates: Tigerair Taiwan, T'way Air.
One-way
The cheapest one-way fare on each of 8 departure dates is usually $116 to $131.
Cheapest one-way found recently
$106
27 Nov · T'way Air
Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP)
Leaves 2:05 p.m. · 2 h 50 min trip
nonstop
found 3 days ago
Cheapest nonstop one-way
$106
27 Nov · T'way Air
Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP)
Leaves 2:05 p.m. · 2 h 50 min trip
nonstop
found 3 days ago
Found recently, and the cheapest we hold
$106 27 Novfound 3 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $72 to $128.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 8 departure dates from 23 Oct to 10 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 1 other departure date within 3 days of 27 Nov, and it is not cheaper.
Every date we hold
8 fares on 8 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 23 Oct | $163 | T'way Air | Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP) | nonstop | found 5 days ago | Open this trip |
| 16 Nov | $140 | Tigerair Taiwan | Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP) | nonstop | found 3 days ago | Open this trip |
| 19 Nov | $116 | T'way Air | Kaohsiung International Airport (KHH) → Incheon International Airport (ICN) | nonstop | found 3 days ago | Open this trip |
| 23 Nov | $120 | Tigerair Taiwan | Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP) | 1 stop | found 3 days ago | Open this trip |
| 27 Nov | $106 | T'way Air | Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP) | nonstop | found 3 days ago | Open this trip |
| 29 Nov | $122 | Tigerair Taiwan | Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP) | 1 stop | found 3 days ago | Open this trip |
| 7 Dec | $116 | Tigerair Taiwan | Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP) | 1 stop | found 4 days ago | Open this trip |
| 10 Dec | $128 | Tigerair Taiwan | Kaohsiung International Airport (KHH) → Gimpo International Airport (GMP) | nonstop | found 5 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $106.
Airlines on the cheapest dates: Tigerair Taiwan, T'way Air.
Premium cabin fares from Kaohsiung to Seoul
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 26 Feb 2027 – 17 Mar 2027 in another cabin: Premium economy · Business · First
Today's prices for 27 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Kaohsiung to Seoul?
Return
The cheapest fares were 30 to 59 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (24 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 14–29 days | $257 | $235 | +4% | 16 |
| 30–59 days | $247 | $228 | Cheapest seen | 14 |
| 60–89 days | $268 | $242 | +9% | 18 |
| 90–179 days | $254 | $211 | +3% | 19 |
One-way
The cheapest fares were 30 to 59 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 30–59 days | $112 | $106 | Cheapest seen | 25 |
| 60–89 days | $129 | $128 | +15% | 8 |
| 180+ days | $207 | $207 | +85% | 7 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
One-way
Tainan → Seoul
42 km from Kaohsiung
$215
$109 more than flying from Kaohsiung
10 Dec · TNN → ICN · 1 stop
found 5 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 26 Feb 2027 – 17 Mar 2027. A live search on this page shows what those dates cost now, for one adult in economy.
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