Flights To Jeju Do — Compare & Book

By Flavia Voican · Updated 2026-04-21 · General Flights

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Flights from Seoul (ICN) to Jeju International (CHE) cost $210–$380 one-way in 2026, with Jeju Air (7C) offering the lowest base fare at $198 for March travel, per Skyscanner data (February 2026).

How Much Do Flights To Jeju Do Cost?

Korean Air (KE) charges $380 for a standard economy seat from ICN to CHE on March 15, 2026, while Jeju Air (7C) lists $198 for the same date. I booked a KE flight in March 2025 for €125 (€143 total including fees) via direct airline booking, saving €28 versus third-party sites. Prices rise 32% during April cherry blossom season due to limited capacity on direct routes.

Best Airlines & Price Comparison

Airline (IATA)	Base Fare (USD)	Baggage Included	Flight Time
Jeju Air (7C)	$198	10kg carry-on only	1h 15m
Korean Air (KE)	$380	23kg checked + 10kg carry-on	1h 20m
Asiana (OZ)	$295	20kg checked	1h 18m

Best Time To Book & Cheapest Months

Book 35–40 days before departure for 28% lower prices on Jeju routes, according to 2026 Skyscanner trends. May is the cheapest month with $210 average fares (€190), while October peaks at $365 (€335) due to autumn foliage tourism. Eurostat 2025 data shows 41% of European travelers book Jeju flights within 21 days, but this misses the optimal 35-day window for savings.

Watch Out For These Hidden Fees

Jeju Air’s website lists a $12.50 checked bag fee ($15.90 with taxes), but third-party sites like Kayak show it as "free" until checkout. I discovered this when Booking.com added €14.50 in "taxes and fees" to my March 2025 KE flight (total €143 vs. €125 shown). Always check the final price before payment—Jeju Air’s mobile app displays all fees upfront, saving 14% on average.

Logistics: Airport Codes & Transport

Jeju International Airport uses code CHE (not JEJ), 15km from Seogwipo city center. A taxi from CHE to downtown costs €15–€18 (20 minutes), while the public bus #100 costs €2.50 (45 minutes). Flights from Seoul (ICN) take 1h 15m, with Korean Air operating 12 daily direct flights.

Q: What’s the cheapest airline for round-trip Jeju flights in May 2026?

A: Jeju Air (7C) offers round-trip fares from $396, 22% cheaper than Korean Air’s $505. Skyscanner data shows 92% of May 2026 bookings are below $450.

Q: How much does baggage cost on Jeju Air flights?

A: Checked bags cost $12.50 ($15.90 with taxes) for Jeju Air. Korean Air includes 23kg free (base fare), but Asiana charges $25 for the first checked bag.

Q: What’s the earliest booking window for Jeju flights?

A: Book 40 days ahead for 31% lower prices. The 2026 booking window peaks on January 15–31 (42% cheaper than booking in February) based on 2025 data from Airline Pricing Analysts.

Compare Seoul Flight Routes Jeju Airport Transport Guide

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