Flights Kaohsiung (Xiaogang) → Seoul

As of November 2026, economy flights from Kaohsiung (Xiaogang) to Seoul have a typical range TWD 9864–36576, median TWD 19987. Full range across all 337 offers: TWD 7330–131606. We analyzed 337 offers from 14 airlines in a single price check.

Preview snapshot — prices change. Search for live results.

Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →

Best offers by airline: Kaohsiung (Xiaogang) → Seoul

Based on 337 offers · November 2026. Prices and availability change — run a live search to confirm.

Bag & seat fees: Kaohsiung (Xiaogang) → Seoul

Add-on pricing from the cheapest available offer per airline · November 2026 · TWD

Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.

How much do flights from Kaohsiung (Xiaogang) to Seoul cost?

Based on 337 offers · November 2026

Kaohsiung (Xiaogang) to Seoul flights ranged from TWD 7330 to TWD 131606 across 337 offers analyzed in November 2026. The chart below shows how prices distributed across all 337 offers.

What hidden fees do Kaohsiung (Xiaogang) to Seoul flights charge?

Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Kaohsiung (Xiaogang) to Seoul routes. The breakdown below is based on 337 offers analyzed in November 2026.

VietJet Air: base ~TWD -73885 + fees TWD 100000 = ~TWD 26115 total. China Eastern: base ~TWD 37791 + fees TWD 104 = ~TWD 37895 total.

VietJet Air's TWD 100000 ancillary fees narrow the gap with China Eastern's lower-fee model — the TWD 111676 base difference shrinks to TWD 11780 after fees. Always compare total cost, not just the advertised base fare.

Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.

Which airline is cheapest from Kaohsiung (Xiaogang) to Seoul?

14 airlines flew Kaohsiung (Xiaogang) to Seoul in this dataset. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.

Even on the cheapest airline (Hong Kong Express), fares ranged TWD 9864–9963 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →

Airline	Offers	Typical range (TWD)	Median (TWD)	Fees (TWD)
Hong Kong Express	40	9864–9963	9864	n/a
T'way Air	24	9555–16986	11380	58374 (513%)
NX	27	13353–25797	15757	n/a
China Airlines	20	11757–32675	16895	274 (2%)
Korean Air	16	16012–41295	18866	135 (1%)
HK Express	11	11269–32763	19534	1368 (7%)
Cebu Pacific	15	15064–25218	19632	788 (4%)
Vietnam Airlines	28	16937–23500	19867	33 (0%)
MF	9	16438–25875	19911	n/a
Cathay Pacific	67	20437–27711	22981	50 (0%)
VietJet Air	30	19225–32787	26115	100000 (383%)
EVA Air	35	12561–73851	29757	177 (1%)
China Eastern	13	33128–51644	37895	104 (0%)
Thai Airways	2	128675–131281	129978	0 (0%)

Where do the best Kaohsiung (Xiaogang) → Seoul prices come from?

We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from travel agency sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.

We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.

Key facts: Kaohsiung (Xiaogang) to Seoul flights

• Kaohsiung (Xiaogang)–Seoul had 337 offers analyzed. Median price: TWD 19987.
• VJ charges 3051.4x more in ancillary fees than VN — TWD 100000 vs TWD 33 avg per booking.
• The same route priced TWD 12119 apart depending on where it was booked — the lowest median was TWD 9864. We search every airline and the major booking sites at once so you always see that lowest price.

Frequently asked questions

How much does a flight from Kaohsiung (Xiaogang) to Seoul cost?

Based on 337 offers analyzed, Kaohsiung (Xiaogang) to Seoul flights range from TWD 7330 to TWD 131606, with a median price of TWD 19987. Search for your specific dates →

What hidden fees should I expect on Kaohsiung (Xiaogang) to Seoul flights?

On average, ancillary fees (bags, seat selection) add TWD 17039 to the base fare on Kaohsiung (Xiaogang) to Seoul flights. See itemized fees for your itinerary →

Which airline is cheapest on Kaohsiung (Xiaogang) to Seoul including all fees?

Hong Kong Express has the lowest median fare on Kaohsiung (Xiaogang) to Seoul at TWD 9864 (median across 40 offers in our snapshot). Check which airline wins on your dates →

Which booking site has the cheapest Kaohsiung (Xiaogang)–Seoul flights?

It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was TWD 9864. Run a live search and we'll find the cheapest for you →

Why do prices vary so much on Kaohsiung (Xiaogang) to Seoul routes?

Kaohsiung (Xiaogang) to Seoul has 14 airlines competing, creating a price range from TWD 7330 to TWD 131606 across 337 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →

14 airlines compete on this route — we check every one

New route — be among the first to track this itinerary

Building with flight data? Power your app or agent with LetsFG

The same multi-source search behind this page — every airline and the major booking sites, deduplicated and ranked — is available to your app or AI agent. Natural-language or structured queries, live prices, zero price bias.

Free sandbox, instant fake results · email for a key · Bearer-token auth · MCP, Python & JS SDKs · letsfg.co/developers