Which has the bigger carry-on allowance, Singapore or Thai?

Singapore: 115 cm total (45.3 in), up to 7 kg (15.4 lb). Thai: 56 × 45 × 25 cm (22 × 17.7 × 9.8 in), up to 7 kg (15.4 lb).

Do Singapore and Thai include a carry-on on basic economy?

Singapore: Every Economy fare includes the 7 kg carry-on. Thai: Economy includes one 7 kg carry-on, measured with wheels and handles, plus a laptop bag or handbag.

Where do Singapore and Thai fly from?

Singapore's main hubs are Singapore (SIN). Thai's are BKK. The better pick is often whichever flies nonstop from your airport.

Are Singapore and Thai partners?

Yes. Both belong to Star Alliance, so you can usually earn miles and use elite benefits across the two.

SQ vs TG · 2026 comparison

Singapore vs Thai

Singapore and Thai are closely matched on the things we compare. Here's how they compare on bags, fees, comfort, reliability and loyalty.

Verified Oct 17, 2026By Steven MoHow we check Report a correction

Singapore

No clear category wins

Thai

No clear category wins

Quick verdict

Singapore and Thai are closely matched on the things we compare. Both include a carry-on on every fare.

Carry-on size: Singapore: 115 cm total · Thai: 56 × 45 × 25 cm
Carry-on on the cheapest fare: Singapore: Included on every fare · Thai: Included on every fare

Side by side

	Singapore	Thai
Bags
Carry-on size	115 cm total	56 × 45 × 25 cm
Carry-on on the cheapest fare	Included on every fare	Included on every fare
Carry-on weight limit	7 kg (15.4 lb)	7 kg (15.4 lb)
Personal item	40 × 30 × 10 cm	Must fit under the seat
Network
Alliance	Star Alliance	Star Alliance
Loyalty program	KrisFlyer	Royal Orchid Plus
Main hubs	SIN	BKK

Highlighted values are better for travelers. Fees are for U.S. domestic economy flights; on-time data is 2025 U.S. DOT figures for each airline's own flights.

Bags and fees

Singapore allows a carry-on up to 115 cm total (45.3 in), and Thai up to 56 × 45 × 25 cm (22 × 17.7 × 9.8 in).

Both include it on their cheapest fares.

Carry-on weight limits: 7 kg (15.4 lb) on Singapore, 7 kg (15.4 lb) on Thai.

Personal items: 40 × 30 × 10 cm (15.7 × 11.8 × 3.9 in) on Singapore, and anything that fits under the seat on Thai.

Loyalty and where they fly

Both are Star Alliance members, so status and miles can work across the two.

Loyalty programs: KrisFlyer (Singapore) and Royal Orchid Plus (Thai).

Singapore's main hubs are Singapore (SIN). Thai's are BKK. The best choice often comes down to which airline flies nonstop from your airport.

Which should you book?

Choose Singapore if you want…

to earn and use Star Alliance miles and status
nonstops from SIN

Choose Thai if you want…

to earn and use Star Alliance miles and status
nonstops from BKK

On a route both fly, the cheaper ticket isn't always the cheaper trip: add the bags you'll actually bring, and check the fare rules before you book.