Trinity Airways budget airline review

By now, most of us have had our fair share of flights on budget airlines. These no-frills, low-cost carriers get us from Singapore to many other parts of the world at a fraction of what full-fledged airlines would usually charge. Here’s 1 more you might have heard of from friends but haven’t tried out yet: Trinity Airways.

Known previously as T’way Air, Trinity Airways is a low-cost budget airline from Korea that flies directly to Seoul from Singapore daily. We’ve got the scoop on whether this airline is worth booking through our Trinity Airways review.

Things to note before travelling to Seoul

Unlike Singapore, South Korea experiences all 4 seasons. Spring happens from April to June, summer from July to August, autumn from September to November, and winter from December to March. Peak travel months fall during spring and autumn, when you can view cherry blossoms in Korea, so take note if you’d like to avoid the tourist crowd.

South Korea uses the South Korean Won. Currently, S$1 roughly equals KRW1,090, but the exact rate will depend on individual money changers’ rates. Most vendors in Seoul, especially those in touristy areas such as Myeongdong and Gangnam, will take your credit cards. However, local wet market stalls might only accept cash, so bring some spare change just in case.

Do Singaporeans need to apply for a visa for South Korea?

Singaporeans do not need a visa to travel to South Korea and can stay for up to 90 days visa-free.

This Korea Electronic Travel Authorisation (K-ETA) exemption for Singaporeans has been extended to 31st December 2026. Instead of applying for a K-ETA, travellers now fill in an arrival card 72 hours before arrival. More details can be found in our guide to countries Singaporeans need a visa to travel to.

Budget flights from Singapore to Seoul on Trinity Airways

Trinity Airways mostly serves as a domestic airline within South Korea, providing multiple flights daily between Seoul and major cities like Busan, Jeju, Daegu, Cheongju, and Gwangju.

On the international front, the Korean budget airline connects Seoul with most of Asia, such as Japan, Taiwan, Thailand, Vietnam, the Philippines, and, of course, Singapore. Right now, the Singapore to Seoul route at Trinity Airways happens daily, so booking a last-minute getaway can still be done in a 24-hour window.

Image credit: @daegu_spotter_pilot via Instagram

Travellers should take note, however, that this Korean budget airline only has 1 flight per day that departs from Singapore at 11pm and arrives in Incheon, South Korea at 6.45am. This is great news for those who don’t mind red-eye flights. At the very least, by the time you land, there’s still a full day ahead to check off your list of new things to do in Seoul.

The flight back may be less favourable. Similarly, there’s only 1 flight per day that departs from Incheon to Singapore, and it leaves Korea at 3.50pm, reaching Changi Airport by 9.30pm.

Since the plane leaves in the afternoon, your last day in Korea would probably be taken up by travel, so do plan your itinerary accordingly.

Economy ticket benefits on Trinity Airways

Baggage, in-flight meals & entertainment

Image credit: @tway_singapore via Instagram

While there’s less flexibility in picking out flight times, each economy ticket does have a number of benefits not often seen on other budget airlines. Prices start at S$195.20/pax for a single trip and S$347/pax for a round-trip ticket, including fuel surcharge and airport tax.

Trinity Airways also regularly holds promotions which can be found on their website. From now till 31st August 2026, they are running their Early Bird discount for trips to Seoul and Jeju, with up to 9% off for trips using the code <AUG26>.

You can also claim discount coupons before 31st August 2026. There’s a S$30 coupon for trips happening from now till 27th March 2027, and a S$50 coupon for trips starting 1st November 2026.

The airline also includes free checked baggage of at least 23kg for all passengers. So yes, that means you can stock up on all the skincare and makeup products from Olive Young without worrying about bringing them onboard with you. If that isn’t enough, you’ll even get up to 10kg allowance for carry-on baggage at Trinity Airways – good enough for last-minute souvenir shopping at the airport.

Image credit: Trinity Airways

Starting from 10th September 2026, flights departing from Singapore to Incheon will enjoy complimentary in-flight meals. However, for other flight routes, meals aren’t provided in the cost of the ticket, as with most other low-cost carriers.

There is an onboard cafeteria, where you can order snacks and drinks from KRW5,000 (~S$4.60). If you skipped dinner and want something more filling, there are warm meals available, such as bibimbap and beef bulgogi with rice from S$12 each.

Just note that it’s recommended that you pay for your food and beverages with cash – either in Korean Won, US Dollar, Japanese Yen, or Chinese Yuan. Credit cards aren’t accepted, except for those linked to banks in Korea.

Image credit: Flight Report

There’s also no entertainment onboard, save for the in-flight magazine and duty-free catalogue, but these are both mostly written in Korean. To make up for it, Trinity Airways does have USB charging ports at each seat, so you can at least keep your devices charged while you watch KPop Demon Hunters for the eighth time.

And if you’re lucky, Trinity Airways does hold special entertainment events hosted by their cabin crew on certain flights. There are performances where the cabin crew sing and play musical instruments. There’s even an introduction to Korean culture with calligraphy demonstrations for passengers.

Business class tickets with lie-flat seats & additional baggage

From S$347/pax for a Singapore-Seoul round-trip flight, Trinity Airways’ economy class is already quite a steal for budget-conscious travellers.

But for those who want even more comfort, the airline’s business class might be worth the splurge for its lie-flat beds. You’ll be forking out from S$1,730/pax for a round-trip ticket, which is about the equivalent of a premium economy class ticket on a full-fledged airline.

The steeper price does mean more benefits, though. For baggage, business class passengers get to check in up to 40kg and 2 carry-on bags weighing up to 10kg each. There’s also 1 free meal per flight.

Image credit: @twayair via Instagram

These perks aside, what really sets business class at Trinity Airways apart from economy is its lie-flat seats. Those blessed with tall genes will know how cramped and uncomfortable airplane seats can get. And forget sleeping when you’ll be battling pins and needles just trying to stretch your legs out on a 6-hour red-eye flight.

Here’s the beauty of lie-flat seats: they can be adjusted into a fully flat surface where you can stretch out your legs or even sleep.

Reviews from Trinity Airways passengers

We can show you all the pictures you’d like, but nothing beats hearing it straight from actual customers about their experience. Here’s a review compilation of Trinity Airways to help you feel confident in booking your flight.

“The pillow on the seat was quite hard to sleep on, but I still managed to fall asleep on my flight. I’d fly Trinity Airways again to Korea just for the price of the ticket alone.” – Pearly

Phone stand for all seats.
Image credit: @twayair via Instagram

“The Trinity Airways planes are clean and comfortable, and I like that they provide USB charging ports and even a phone stand so you can watch your shows. No cons for me; I would fly Trinity Airways over other budget airlines to Korea.” – Estee

“I feel like Trinity Airways is about the same as most other budget airlines available. An upside is that I’ve never experienced delays with them, as compared to other ones. I also like that they provide free check-in luggage – practically unheard of for other budget airlines.” – Doreen

Fly budget to Seoul from Singapore via Trinity Airways

The next time you’re planning a trip from Singapore to Seoul, Korea, Trinity Airways is a viable option to consider if you’re working with a smaller budget. And if you’re looking to save even more money, check out these cheap hotels and free things to do in Seoul while you’re at it.

Find out more about Trinity Airways here

Cover image adapted from: @daegu_spotter_pilot, @tway_singapore & @twayair via Instagram
Originally published on 27th June 2023 by Raewyn Koh. Last updated by Celine Wee on 25th August 2026.