Explore the latest T'way Air (TW) fleet and aircraft seat maps. Compare amenities, baggage, check-in, children and pet travel rules.
Last updated: October 2026
IATA: TWFounded 2003HQ: Seoul, South Korea
About T´Way Air
Explore the latest T'way Air (TW) fleet and aircraft seat maps. Compare amenities, baggage, check-in, children and pet travel rules.
T'way Air was founded August 13 and began operations September 16. It is a South Korean low-cost airline. The airline's main hubs are Gimpo International Airport, Incheon International Airport. T'way Air specializes in domestic passages. In addition to domestic flights, the airline operates international flights to China, Japan, Vietnam, Taiwan, Thailand, Russia, Guam, Laos, the Northern Mariana Islands, and the Philippines. In total, T'way Air serves 38 routes. The company's fleet consists of 27 aircrafts.
Fees and allowances vary by route, fare and status.
Baggage
T'way Air's standard checked baggage / hold luggage policy details follow: two bags standard, up to 10 bags maximum (up to 4 bags on T'way Air Connection), maximum dimensions: 62 inches or 157 centimeters (length + width + height), maximum weight: 50 pounds or 23 kilograms. Carry-on baggage cannot exceed 114 centimetres in combined width, length and height; this includes any wheels and handles.
Dogs, cats, and house birds at least 8 weeks old. All other types of animals, such as rabbits, turtles, reptiles and birds of prey, are not allowed on board. Carry-On pets are NOT permitted in T'Way Air Business Saver Class. Transporting pets are only allowed in the cabin(No checked pets)
Infants are defined as children under two years of age. Infants may fly without a seat on the T'way Air plane, or on the lap of an accompanying adult. If you wish, you can buy a seat for an infant at the infant fare. Children over two years of age must have their own seat on the plane. If one adult is traveling with two infants, one seat must be purchased for one infant, and the other may be held on the lap.
Check-in can be done online (via the website or mobile app) or at the airport. Online check-in begins 24 hours before departure and ends 60 minutes before departure. Check-in desks open three hours before departure and close 60 minutes before departure.
Can be used by teenagers older than 12 and under 18 years old after paying a separate T'way Air service fee.This is not available for children unaccompanied by a guardian or unaccompanied children ages older than 5 and under 12 years old who are traveling alone.
Find quick answers to the most common questions about flying with T´Way Air.
What cabin baggage do T’way/Trinity regular, Smart and event fares include?
One cabin bag plus one personal item, including duty-free purchases, with a combined 10 kg limit. The bag must fit 55 × 40 × 20 cm including wheels and handles; the personal item must fit 40 × 30 × 15 cm.
Can companions pool checked-baggage weight on T’way/Trinity?
Generally yes, except on Guam, Saipan, Vancouver, Ulaanbaatar and Tashkent routes. Each individual bag must still weigh no more than 32 kg.
Can I take a single golf club into the T’way/Trinity cabin?
No. Even one club must be checked. Ordinary checked-baggage rules apply without a separate special-baggage fee; excess allowance charges still apply.
When is online check-in available on T’way/Trinity?
From 24 hours to 35 minutes before domestic departure, or 24 hours to one hour before eligible international flights. Some overseas departures and passenger categories are excluded.
Do I need the counter after T’way/Trinity online check-in if I have checked bags?
Yes. Present your QR code and drop your bags at the counter before proceeding to departures. Eligible passengers without checked bags or further verification requirements may proceed directly.
Can a child board T’way/Trinity using an online check-in exchange voucher?
No. Exchange it for a boarding pass at the counter before entering departures. This process covers international passengers under 12 and some domestic passengers under 19.
Can I check in on T’way/Trinity’s website for a travel-agency booking?
Yes. Log in with the agency booking reference and use My Bookings → Online Check-in. Agency bookings are not automatically linked to your website membership account.
How do I book a cabin seat for a cello or valuable item on T’way/Trinity?
Book an extra seat through the reservation center, not online. Limits are 75 kg and 155 cm high; when stored upright on the seat, height is limited to 110 cm. Total dimensions cannot exceed 203 cm.
Can I put a power bank overhead or charge it from aircraft power on T’way/Trinity?
Keep it with you, not overhead, and protect its terminals with insulating tape or a separate bag. Tell the crew immediately if it overheats. Aircraft power must not charge power banks or e-cigarettes.
My confirmation says T’way Air but my boarding pass says Trinity Airways. Can I still board?
Yes. The airline says the different names do not prevent boarding. It changed its name on September 10, 2026; confirmations received for tickets purchased earlier may still show T’way Air.
T´Way Air Flights, Routes & Travel Guide
Explore the latest T'way Air (TW) fleet and aircraft seat maps. Compare amenities, baggage, check-in, children and pet travel rules.
Last updated: October 2026
IATA: TWFounded 2003HQ: Seoul, South Korea
About T´Way Air
Explore the latest T'way Air (TW) fleet and aircraft seat maps. Compare amenities, baggage, check-in, children and pet travel rules.
T'way Air was founded August 13 and began operations September 16. It is a South Korean low-cost airline. The airline's main hubs are Gimpo International Airport, Incheon International Airport. T'way Air specializes in domestic passages. In addition to domestic flights, the airline operates international flights to China, Japan, Vietnam, Taiwan, Thailand, Russia, Guam, Laos, the Northern Mariana Islands, and the Philippines. In total, T'way Air serves 38 routes. The company's fleet consists of 27 aircrafts.
Fees and allowances vary by route, fare and status.
Baggage
T'way Air's standard checked baggage / hold luggage policy details follow: two bags standard, up to 10 bags maximum (up to 4 bags on T'way Air Connection), maximum dimensions: 62 inches or 157 centimeters (length + width + height), maximum weight: 50 pounds or 23 kilograms. Carry-on baggage cannot exceed 114 centimetres in combined width, length and height; this includes any wheels and handles.
Dogs, cats, and house birds at least 8 weeks old. All other types of animals, such as rabbits, turtles, reptiles and birds of prey, are not allowed on board. Carry-On pets are NOT permitted in T'Way Air Business Saver Class. Transporting pets are only allowed in the cabin(No checked pets)
Infants are defined as children under two years of age. Infants may fly without a seat on the T'way Air plane, or on the lap of an accompanying adult. If you wish, you can buy a seat for an infant at the infant fare. Children over two years of age must have their own seat on the plane. If one adult is traveling with two infants, one seat must be purchased for one infant, and the other may be held on the lap.
Check-in can be done online (via the website or mobile app) or at the airport. Online check-in begins 24 hours before departure and ends 60 minutes before departure. Check-in desks open three hours before departure and close 60 minutes before departure.
Can be used by teenagers older than 12 and under 18 years old after paying a separate T'way Air service fee.This is not available for children unaccompanied by a guardian or unaccompanied children ages older than 5 and under 12 years old who are traveling alone.
Find quick answers to the most common questions about flying with T´Way Air.
What cabin baggage do T’way/Trinity regular, Smart and event fares include?
One cabin bag plus one personal item, including duty-free purchases, with a combined 10 kg limit. The bag must fit 55 × 40 × 20 cm including wheels and handles; the personal item must fit 40 × 30 × 15 cm.
Can companions pool checked-baggage weight on T’way/Trinity?
Generally yes, except on Guam, Saipan, Vancouver, Ulaanbaatar and Tashkent routes. Each individual bag must still weigh no more than 32 kg.
Can I take a single golf club into the T’way/Trinity cabin?
No. Even one club must be checked. Ordinary checked-baggage rules apply without a separate special-baggage fee; excess allowance charges still apply.
When is online check-in available on T’way/Trinity?
From 24 hours to 35 minutes before domestic departure, or 24 hours to one hour before eligible international flights. Some overseas departures and passenger categories are excluded.
Do I need the counter after T’way/Trinity online check-in if I have checked bags?
Yes. Present your QR code and drop your bags at the counter before proceeding to departures. Eligible passengers without checked bags or further verification requirements may proceed directly.
Can a child board T’way/Trinity using an online check-in exchange voucher?
No. Exchange it for a boarding pass at the counter before entering departures. This process covers international passengers under 12 and some domestic passengers under 19.
Can I check in on T’way/Trinity’s website for a travel-agency booking?
Yes. Log in with the agency booking reference and use My Bookings → Online Check-in. Agency bookings are not automatically linked to your website membership account.
How do I book a cabin seat for a cello or valuable item on T’way/Trinity?
Book an extra seat through the reservation center, not online. Limits are 75 kg and 155 cm high; when stored upright on the seat, height is limited to 110 cm. Total dimensions cannot exceed 203 cm.
Can I put a power bank overhead or charge it from aircraft power on T’way/Trinity?
Keep it with you, not overhead, and protect its terminals with insulating tape or a separate bag. Tell the crew immediately if it overheats. Aircraft power must not charge power banks or e-cigarettes.
My confirmation says T’way Air but my boarding pass says Trinity Airways. Can I still board?
Yes. The airline says the different names do not prevent boarding. It changed its name on September 10, 2026; confirmations received for tickets purchased earlier may still show T’way Air.