Trinity Airways Launches Sale on Korea and Guam Flights
Trinity Airways is holding a sale on flights to Korea and Guam from October 16 to October 31, 2026. Discounts are up to 11% off for Korea and up to 18% off for Guam. The lowest listed fares are all-inclusive one-way totals, with fuel surcharges and aviation taxes already included. That means you can use the advertised price directly as your travel budget. Fares to Guam start from ¥20,660 one way from Tokyo (Narita), and the cheapest fare across all eligible routes is ¥17,380 from Saga.
Sale Overview
- Booking period: October 16 – October 31, 2026
- Travel period: January 1 – March 27, 2027 (varies by route)
- Discount: Up to 11% off to Korea, up to 18% off to Guam
- How to apply: Enter discount code OCT26
- Fare display: One-way total including fuel surcharges and aviation taxes
- Extra perks: A ¥8,000 discount coupon for round-trip Guam bookings and a ¥3,000 discount coupon for Korea flights
Sale fares apply when you enter the discount code OCT26 during booking. If you forget to enter it, the discount will not be applied. Check the code field and the discounted total before paying.
Guam Routes and Lowest Fares (One-Way Total)
The Guam sale covers flights from nine airports in Japan. The lowest fare for each route is listed below.
- From Saga: ¥17,380
- From Fukuoka: ¥18,980
- From Nagoya (Chubu): ¥19,060
- From Tokyo (Narita): ¥20,660
- From Kumamoto: ¥21,220
- From Kobe: ¥22,000
- From Okinawa (Naha): ¥27,130
- From Sapporo (New Chitose): ¥28,610
- From Osaka (Kansai): ¥40,780
Guam Fare Trends
Fares range from ¥17,380 to ¥40,780. Saga offers the lowest fare at ¥17,380. Together with Fukuoka at ¥18,980 and Nagoya (Chubu) at ¥19,060, three routes come in under ¥20,000 one way. From the Tokyo area, Tokyo (Narita) starts at ¥20,660, so you can reach Guam for just over ¥20,000. Kumamoto (¥21,220) and Kobe (¥22,000) fall into a similar price range.
Okinawa (Naha) at ¥27,130 and Sapporo (New Chitose) at ¥28,610 are somewhat higher. Osaka (Kansai) is the most expensive route at ¥40,780, more than ¥20,000 above the cheapest fare from Saga. If you live in the Kansai region and price is your priority, compare it with the Kobe fare of ¥22,000.
Seoul (Incheon) Routes and Lowest Fares (One-Way Total)
For Korea, lowest fares have been announced on the following three routes to Seoul (Incheon).
- From Fukuoka: ¥19,970
- From Osaka (Kansai): ¥20,770
- From Sapporo (New Chitose): ¥26,730
Seoul Fare Trends
Fares range from ¥19,970 to ¥26,730. Fukuoka is the only route under ¥20,000, at ¥19,970. Osaka (Kansai) stays just above ¥20,000 at ¥20,770, and Sapporo (New Chitose) is ¥26,730. Interestingly, Osaka (Kansai) has the highest fare to Guam but one of the more affordable fares to Seoul. The travel period runs from January to late March, so this sale is worth a look if you are planning a winter or early-spring trip to Seoul.
Discount Coupons for Guam and Korea
In addition to the discount code, Trinity Airways is also handing out discount coupons.
- Guam: ¥8,000 discount coupon for round-trip ticket purchases
- Korea: ¥3,000 discount coupon
Here is an example for Tokyo (Narita) to Guam. If you could book both the outbound and return flights at ¥20,660, the total would be ¥41,320, or ¥33,320 after the ¥8,000 coupon. However, the lowest fares announced for this sale are one-way fares departing from Japan. Return fares vary by date and flight, so treat this figure as an estimate only. Also check the official website to see whether coupons can be combined with the discount code, how many coupons are available, and what conditions apply.
How to Book
- Visit the Trinity Airways official website (https://www.trinityairways.com/main.do?_langCode=JA)
- Select your departure city, destination, and travel date (the travel period falls between January 1 and March 27, 2027, depending on the route)
- Enter the discount code OCT26 on the booking screen
- If you have an eligible discount coupon, check its conditions and apply it
- Confirm the discounted total and complete payment
Things to Check Before Booking
- Listed prices are the lowest fares: Depending on the travel date and flight, the actual fare may be higher than the advertised amount.
- Discounts are maximum values: The 11% (Korea) and 18% (Guam) discounts are both maximums. The same rate may not apply to every flight or date.
- Travel periods vary by route: Check on the booking screen that your preferred date falls within the eligible period.
- Review fare conditions: Before purchasing, check the rules for checked baggage and seat selection, as well as change and refund conditions.
- Travel preparation: Before departure, check the latest entry requirements for Guam (a U.S. territory) and Korea, as well as your passport validity.
Summary
Trinity Airways is offering up to 18% off flights to Guam and up to 11% off flights to Korea. All-inclusive one-way fares start from ¥17,380 to Guam and ¥19,970 to Seoul (Incheon). If you are planning a trip between January and March 2027, consider booking with discount code OCT26 before October 31. Check the coupon conditions as well, since they may make your trip even cheaper.