Trinity Airways baggage allowance: carry-on, checked bags and power banks

Trinity Airways is a low-cost airline based in South Korea, flying to Narita and Kansai in Japan. Carry-on: 115cm, 10kg. The free checked bag in Economy depends on the fare.

Updated October 2, 2026

115cmCarry-on, three sides

10kgCarry-on weight

Depends on the fareChecked, Economy

160WhLargest power bank

Low-costPower bank: not to be used

What Trinity Airways lets you take into the cabin

Economy, as Trinity Airways publishes it.

Three sides added: 115cm
Each side: 55 × 40 × 20cm
Weight: 10kg
Pieces: 1 bag + 1 personal item
Personal item: 40 × 30 × 15cm
Premium cabins: Business: 2 bags, each up to 10kg, 20kg total

A T'way Air (now Trinity Airways) Boeing 737-800 in red and white colours on the apron at Fukuoka Airport — Photo: HL8237 T'Way Air Boeing 737-800.jpg by redlegsfan21 (CC BY-SA 2.0, cropped), via Wikimedia Commons.

What Trinity Airways lets you check in

Free checked baggage in Economy on flights to and from Japan.

Free checked baggage in Economy on Trinity Airways, by fare
Fare	What is included
Event fare	Not included
Smart fare	15kg
Standard fare	20kg

Heaviest bag: 32kg
Size: 203cm total of three sides

Power banks and spare batteries on Trinity Airways

What Trinity Airways's own pages say about power banks.

Trinity Airways does not allow power banks to be used during the flight.

Using it on board: Not allowed
With approval up to: 160Wh
Power banks per person: 2max

In checked bags: Carry-on only, not allowed in checked baggage
With approval: Over 100Wh up to 160Wh: airline approval needed
Not allowed: Over 160Wh: not allowed
How many: Power banks of 100Wh or less: up to 2
Using it on board: Do not use a power bank to charge devices, or charge it, during the flight
Where to keep it: Keep it with you; not allowed in the overhead bin
Packing: Insulate the terminals with tape or put each one in a clear plastic bag

Where these power bank rules come from

Trinity Airways: trinityairways.com/app/serviceInfo/contents/1150checked October 2, 2026

Where Trinity Airways flies in Japan

Airports in Japan listed on the airline's own site or in the airport's official airline list, and the terminal to head for.

Which terminal Trinity Airways uses at Narita, Haneda and Kansai (from the airports' own airline lists)
Airport	Terminal
Narita Airport	T2
Kansai Airport	T1

Trinity Airways and other airlines from South Korea

The same numbers side by side. Tap a name for that airline's page.

Carry-on and checked baggage, South Korea airlines (each airline's own published rules)
Airline	Carry-on size	Weight	Free checked (Economy)	Power bank on board
Air PremiaSouth Korea · Full-service	115cm	10kg	Depends on the fare	Not to be used
AsianaSouth Korea · Full-service	115cm	10kg	23kg	Not to be used
Korean AirSouth Korea · Full-service	115cm	10kg	23kg	Not to be used
Aero KSouth Korea · Low-cost	115cm	10kg	Depends on the fare	Not to be used
Air BusanSouth Korea · Low-cost	115cm	10kg	Depends on the fare	Not to be used
Air SeoulSouth Korea · Low-cost	115cm	10kg	Regular and discount fares: 10kg	Not to be used
Eastar JetSouth Korea · Low-cost	115cm	10kg	Depends on the fare	Not to be used
Jeju AirSouth Korea · Low-cost	115cm	10kg	Depends on the fare	Not to be used
Jin AirSouth Korea · Low-cost	115cm	10kg	15kg	Not to be used
Trinity AirwaysSouth Korea · Low-cost	115cm	10kg	Depends on the fare	Not to be used

Frequently asked questions

What is the carry-on size limit on Trinity Airways?

Three sides added: 115cm. Each side: 55 × 40 × 20cm. Weight: 10kg. Pieces: 1 bag + 1 personal item.

How much checked baggage is included on Trinity Airways?

It depends on the fare. Event fare: Not included. Smart fare: 15kg. Standard fare: 20kg. Size: 203cm total of three sides.

Can I use a power bank on a Trinity Airways flight?

Using it on board: Do not use a power bank to charge devices, or charge it, during the flight. Where to keep it: Keep it with you; not allowed in the overhead bin.

Can I put a power bank in checked baggage on Trinity Airways?

In checked bags: Carry-on only, not allowed in checked baggage. With approval: Over 100Wh up to 160Wh: airline approval needed. How many: Power banks of 100Wh or less: up to 2.