Originfacts

Airline guide

T'way Air logo

T'way AirIATA code TW

twayair.com(official website, opens in a new tab)

Baggage allowances, fare rules, check-in cut-offs and contact details for T'way Air. Policy figures are read from T'way Air’s own published pages and each one shows where it came from and when we checked it.

Home country
South Korea
Busiest markets
Seoul, Bangkok, Jeju
By route count · route data Jul 2026
Destinations
5 in 4 countries
Route data Jul 2026
7 of 7 sections verified· checked 6 Oct 20261 from route dataHow we check

T'way Air at a glance

T'way Air carry-on baggage allowance

Verified 6 Oct 2026

Source: twayair.com/baggage/hand-baggage (opens in a new tab)

Carry-on weight by cabin
CabinCarry-on weight
Economy1 cabin bag up to 10 kg (22 lbs) + 1 personal item included free
Business & First2 cabin bags total up to 10 kg each + 1 personal item (Business Saver)
Cabin bag size
55 x 40 x 20 cm

T'way Air checked baggage allowance

Verified 6 Oct 2026

Source: twayair.com/baggage/checked-baggage (opens in a new tab)

Checked allowance by cabin
CabinChecked allowance
Economy1 piece up to 15 kg (33 lbs) included on Smart/Event fares; 23 kg on US/Guam routes
Business2 pieces up to 32 kg (70 lbs) total included (Business Saver)
First2 pieces up to 32 kg (70 lbs) total included (Business Saver)

What T'way Air’s cheapest fare includes

Verified 6 Oct 2026

Source: twayair.com/fares (opens in a new tab)

Lowest fare
Event Fare, Smart Fare, General Fare, Business Saver
Seat selection
Included in Business Saver; fee on Event and Smart fares until check-in.
Changes and cancellations
Event Fare non-refundable; Smart and General fares allow rebooking subject to fee.

T'way Air cabins and aircraft

Verified 6 Oct 2026
Seat options
Standard Economy, Extra Legroom seats, Business Saver (premium recliner / lie-flat seats on Airbus A330-300 & B737-800).
Verified 6 Oct 2026twayair.com (opens in a new tab)
Reserved or random
Fee-based advance seat selection on Economy; included in Business Saver; assigned free at check-in.
Verified 6 Oct 2026twayair.com (opens in a new tab)
Family seating
T'way Air automatically seats children under 12 next to an accompanying adult free of charge.
Verified 6 Oct 2026twayair.com (opens in a new tab)

If your T'way Air flight is delayed or cancelled

Verified 6 Oct 2026

Source: twayair.com/passenger-rights (opens in a new tab)

These are standards published by the carrier for delays and cancellations. On codeshares or interline itineraries, the operating carrier is responsible.

Care
Food, beverages, and hotel lodging for delays within carrier control under South Korea MOLIT guidelines.
Rebooking and refunds
Full refund or free rebooking if flight cancelled or delayed >3 hours.
Compensation
Statutory compensation under South Korea MOLIT consumer protection regulations.

T'way Air check-in times and airport cut-offs

Verified 6 Oct 2026

Source: twayair.com/check-in (opens in a new tab)

Online check-in opens
24 hours before departure
Domestic check-in closes
30 minutes before departure (Korea domestic)
International check-in closes
60 minutes before departure
Boarding closes
10 to 15 minutes before departure

How to contact T'way Air

Verified 6 Oct 2026

Source: twayair.com/contact (opens in a new tab)

Customer service phone
+82 1688 8686

Where T'way Air flies

Route data · Jul 2026

Source: Originfacts route-network dataset, built from TravelPayouts route data (updated 2026-07). Not verified by hand.

We track 8 T'way Air routes serving 5 destinations across 4 countries.

Destinations
5
Countries
4
Routes tracked
8
Longest route
3,666 km

Busiest markets by route count

  1. Seoul4 routes
  2. Bangkok1 routes
  3. Jeju1 routes
  4. Fukuoka1 routes
  5. Taipei1 routes

A market may include more than one airport.

Longest route in the dataset

Bangkok BKKtoSeoul ICN

3,666 km great-circle distance between the two airports.

Destinations in the route data

Common questions about flying T'way Air

What size cabin bag can I take on T'way Air?

According to T'way Air’s own website (twayair.com, checked 6 Oct 2026): 55 x 40 x 20 cm.

How heavy can my T'way Air carry-on bag be?

According to T'way Air’s own website (twayair.com, checked 6 Oct 2026): 1 cabin bag up to 10 kg (22 lbs) + 1 personal item included free.

What is the T'way Air Economy checked baggage allowance?

According to T'way Air’s own website (twayair.com, checked 6 Oct 2026): 1 piece up to 15 kg (33 lbs) included on Smart/Event fares; 23 kg on US/Guam routes.

When can I check in online with T'way Air?

According to T'way Air’s own website (twayair.com, checked 6 Oct 2026): 24 hours before departure.

When does T'way Air check-in close for domestic flights?

According to T'way Air’s own website (twayair.com, checked 6 Oct 2026): 30 minutes before departure (Korea domestic).

When does T'way Air check-in close for international flights?

According to T'way Air’s own website (twayair.com, checked 6 Oct 2026): 60 minutes before departure.

What is the T'way Air customer service phone number?

According to T'way Air’s own website (twayair.com, checked 6 Oct 2026): +82 1688 8686.

How many destinations does T'way Air fly to?

Originfacts tracks 5 T'way Air destinations across 4 countries, on 8 routes.

Where is T'way Air based?

T'way Air is based in South Korea. In the Originfacts route dataset, its busiest market is Seoul, followed by Bangkok, Jeju and Fukuoka.

What aircraft appear on T'way Air routes?

The routes we hold name Boeing 737. That dataset accumulates over time, so treat it as a record of what has flown rather than a current fleet list.

What is the longest T'way Air route?

Bangkok to Seoul, at 3,666 km.

Sources and verification

Baggage, fare, check-in, disruption and contact figures are published only when they are read from T'way Air’s own pages or a named regulator, and each one shows the page and the date it was checked. Where sources disagree we show both and publish neither. Route and destination figures come from the Originfacts route dataset and show its date instead; they are not verified by hand.