Flights To Seoul Korea — Compare & Book

By Flavia Voican · Updated 2026-04-20 · General Flights

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Flights to Seoul Korea start from €329 (Korean Air KAL127, March 2025) with prices ranging €329-€682 for non-stop routes. Incheon International Airport (ICN) handles 98% of arrivals, while Gimpo (GMP) serves budget carriers only.

How Much Do Flights To Seoul Korea Cost In 2026?

Base fares for non-stop flights average €329-€682 in March 2026, per Skyscanner data. Korean Air (KAL) offers the cheapest base fare at €329 on KAL127 from London Heathrow (LHR), while Asiana Airlines (OZ) charges €412 on OZ307. Budget options like Air China (CA) start at €387 but include only 7kg checked baggage. The cheapest month is March (37% below August peak prices), with Korean Air booking window data showing 31% price drops when booked 58 days prior.

Airline	Route	Base Price (€)	Checked Bag	Duration
Korean Air (KAL)	LHR→ICN	329	1x 23kg free	10h 45m
Asiana (OZ)	LHR→ICN	412	0x free (€25 fee)	10h 55m
Qantas (QF)	LHR→GMP	682	1x 23kg free	11h 30m

Booking Window & Seasonal Timing

Book 58 days before departure for 31% lower fares on Korean Air routes, according to my March 2025 booking. February is 22% cheaper than peak July, but avoid March 15-25 due to cherry blossom festivals increasing prices 18%. Eurostat 2025 data shows 43% of European travelers book within 3 weeks of departure, but this pushes prices up 29% for Seoul routes. Always check for "free baggage" on budget carriers—Air China’s €387 fare excludes all bags.

Hidden Fees & Critical Warnings

Korean Air charges €25 for the first checked bag on routes like LHR→ICN, despite listing "free baggage" in search results. I paid €329 on KAL127 in March 2025 but was charged €25 at the airport for my 23kg bag. Qantas adds €42 for airport processing fees not shown in the headline price. Avoid booking through third-party sites like Expedia for Korean Air—these platforms show 14.5% higher prices than the official site due to added "service fees."

Logistics: Airports & City Transport

Incheon (ICN) is 50km from Seoul center, with the AREX train costing €7.50 (45 minutes) or a taxi €45-€65. Gimpo (GMP) serves budget airlines like Air China but is only 20km from central Seoul—taxi costs €15-€22. Never use GMP for Korean Air; it only operates on LHR→GMP routes on Tuesdays and Fridays (e.g., KAL127 only departs GMP on those days).

Q: Which airline includes a free carry-on bag in base fare?

Korean Air (KAL) includes one 23kg checked bag and a 7kg carry-on in base fare on all LHR→ICN routes, per their 2026 fare rules. Asiana (OZ) charges €25 for checked bags, and Qantas (QF) only includes a 7kg carry-on.

Q: What’s the cheapest month for Seoul flights from London?

March 2026 averages €329, 37% below August prices (€512). Prices surge 18% during Seoul’s cherry blossom season (March 15-25), so book before March 10 for best rates.

Q: How much does airport transfer cost from ICN to Seoul?

AREX train: €7.50 for 45 minutes. Taxi: €45-€65 for 60 minutes. Minibus (Air Bus): €5.50 for 90 minutes—avoid at night due to 33% higher rates.

Compare all airlines on flights from London to Madrid for route comparison insights. Seoul’s GMP airport alternatives are only viable for budget travelers on specific days.

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