T’way Air’s New Kaohsiung–Jeju Route: Round Trip Under NT$5,300

Southern Taiwan travelers have always had to connect through Taipei for Jeju Island — until T’way Air launched a direct Kaohsiung route in April 2025. The opening promotional fare: NT$5,235 round trip all-in with 15KG checked baggage, after stacking available discounts. Four flights per week, 2.5-hour flying time. Here’s the complete breakdown.

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T’way Air Kaohsiung–Jeju: Launch Deal Details

T’way Air’s new Kaohsiung (KHH) → Jeju (CJU) route launched April 22, 2025, running four times weekly (Tuesday, Thursday, Saturday, Sunday). Aircraft: Boeing 737-800.

Schedule: Outbound TW690 departs Kaohsiung at 13:40, arrives Jeju 17:05. Return TW689 departs Jeju at 11:05, arrives Kaohsiung 12:40. Midday timing — no early-morning scrambles, no late-night arrivals.

Pricing: Base promotional one-way (pre-tax) at NT$1,600. Round trip all-in: NT$6,535 with 15KG baggage included. With T’way’s launch discount voucher (NT$800 off round trips) and LINE Pay cashback (10% up to 900 points on purchases over NT$5,000), the final price after stacking: approximately NT$5,235 round trip. Travel window: April 22 through October 25, covering the full summer season.

Promotional pricing ran through March 31. Availability was released gradually — checking the airline’s website regularly was the best approach to catching open seats.

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Rational Take: Is This Worth Booking?

At NT$5,235 all-in with 15KG baggage included, yes — this deal made sense. The original announcement priced round trips at NT$18,000, which made people question whether this was a budget airline. Then the promotional fares dropped, and the math shifted completely. The midday schedule is genuinely convenient — no alarm-clock departures, no late arrivals. T’way Air on 737-800 doesn’t offer luxury, but 15KG baggage covers Jeju’s main souvenir categories.

Peak summer availability through October 25 makes this practical for family trips. The beach, crater hike, and black pork barbecue are all there — you just need to catch the fare window.

Jeju Island Food and Travel Highlights

Jeju is a 2.5-hour flight from Kaohsiung. Here’s what makes the trip worth the fare:

• Jeju black pork barbecue: Sizzling at the table, dipped in salt — a regional specialty that earns every food travel article mentioning it. Start at Dongmun Market near the airport.
• Sea urchin soup or fresh sashimi: Jeju’s coastal seafood is serious. Worth at least one sit-down meal.
• Seongsan Ilchulbong (Sunrise Peak): UNESCO-listed volcanic crater with panoramic ocean views. The hike is short; the view is long.
• Udo Island: Bike the perimeter, eat the peanut ice cream, take the photos.
• May–June rapeseed flower season: Yellow fields against blue ocean — peak visual impact, uncrowded by summer standards.

Accommodation: Downtown Jeju hotels run TWD 2,000–3,000/night. Useful range for a 3–4 night trip without blowing the flight savings.

The 15KG Baggage Plan

Jeju’s convenience stores and duty-free areas sell dried seafood, Jeju tangerine chocolates, and seaweed snacks that pack well. 15KG is enough if you’re strategic — pack light on the way out, fill on the way back.

Further Reading

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2026 Chinese New Year Flights: The Reverse-Booking Strategy That Saves Real Money

📖 Read more: 2026 Complete Flight Booking Guide →