Over the last few days we’ve been publishing our latest updates for Singapore Airlines’ finalised 2026 summer season schedule, but the carrier has snuck in an extra service that we hadn’t spotted – a seventh daily Bangkok flight is now part of the mix starting just two months from now.

This is a welcome addition, not only because it bumps flight frequencies and capacity on the carrier’s second-busiest route, but also because it will see the return of Airbus A350 Long Haul aircraft on selected days.

That means the more spacious 2013 Long Haul product in Business Class, plus a Premium Economy section for PPS Club members or those willing to pay a little extra for more room to stretch out – despite no service differentiation being offered.

The schedule

Here’s how the schedule looks, with newly-added SQ722/721 services highlighted.

Singapore Airlines
Singapore Bangkok
29 Mar 2026 – 24 Oct 2026

All services operate daily

			Aircraft J Seats	Dates / Days
	SQ706		A350 MH 2018 RJ	Till 30 Jun
SIN 06:40		BKK 08:05	787-10 2018 RJ	From 1 Jul
	SQ708		787-10 2018 RJ	All
SIN 09:30		BKK 11:00
	SQ722		787-10 2018 RJ	Mon, Wed, Fri
SIN 10:50		BKK 12:20	A350 LH^ 2013 J	Tue, Thu, Sat, Sun^
	SQ710		787-10 2018 RJ	All
SIN 12:50		BKK 14:20
	SQ712		787-10 2018 RJ	All
SIN 15:45		BKK 17:15
	SQ714		787-10 2018 RJ	All
SIN 17:30		BKK 19:00
	SQ720		787-10 2018 RJ	All
SIN 18:30		BKK 20:00

^ A350 MH / 787-10 (2018 RJ seats) from 5th July 2026 to 25th September 2026

Singapore Airlines
Bangkok Singapore
29 Mar 2026 – 24 Oct 2026

All services operate daily

			Aircraft J Seats	Dates / Days
	SQ705		A350 MH 2018 RJ	Till 30 Jun
BKK 09:20		SIN 12:45	787-10 2018 RJ	From 1 Jul
	SQ707		787-10 2018 RJ	All
BKK 12:15		SIN 15:50
	SQ721		787-10 2018 RJ	Mon, Wed, Fri
BKK 13:35		SIN 16:55	A350 LH^ 2013 J	Tue, Thu, Sat, Sun^
	SQ709		787-10 2018 RJ	All
BKK 15:30		SIN 18:55
	SQ711		787-10 2018 RJ	All
BKK 18:30		SIN 21:55
	SQ713		787-10 2018 RJ	All
BKK 20:15		SIN 23:40
	SQ719		787-10 2018 RJ	All
BKK 21:15		SIN 00:35*

^ A350 MH / 787-10 (2018 RJ seats) from 5th July 2026 to 25th September 2026
* Next day

The new SQ722/721 flight will offer a late morning departure from Changi at 10.50am, arriving into Bangkok at 12.20pm, while in the return direction a 1.35pm departure is added from the Thai capital, with arrival back into Singapore well in time for dinner at 4.55pm.

As you can see, Singapore Airlines will be offering its 2013 Business Class on the Airbus A350 Long Haul four days per week on this new service – pick a Tuesday, Thursday, Saturday or Sunday flight to take advantage. It’s a rare seat type for the route which usually only features the 2018 Regional Business Class.

You’re out of luck on Mondays, Wednesdays and Fridays though – a Boeing 787-10 will operate the new service on those days.

Provisionally, the new service switches to all-Airbus A350 Medium Haul operation from the start of the northern winter season on 25th October 2026 – but this could change closer to the time.

Second-busiest SIA route

Bangkok is already SIA’s second-busiest route by weekly seat capacity, as we recently reported.

That position is further strengthened by this schedule expansion, as you can see below in this updated list of the airline’s ‘top 5’ routes based on July 2026 schedules.

Busiest Routes by Weekly Seat Capacity (July 2026)
Rank	City	Seat Capacity	vs. Mar 2026
1	Jakarta	17,143	6%
2	Bangkok	16,177	16%
3	Bali	14,154	22%
4	London	11,984	1%
5	Hong Kong	11,081	17%

Bangkok is now nipping at the heels of Jakarta as the airline’s busiest route.

2013 Business Class

With the Airbus A350 Long Haul operating on selected days to and from Bangkok, you’ll be able to snag one of 42 of the airline’s 2013 Business Class seats, which are the widest on offer to and from Bangkok, and still have direct aisle access.

These will supplement the newer but narrower 2018 Regional Business Class seats on the Airbus A350 Medium Haul / Boeing 787-10 flights operating the carrier’s other Bangkok rotations.

Many passengers find the 2018 Regional Business Class product a little ‘cosy’ for their liking, so having the long-haul option on this route is good news, provided the timing and days of operation fit in with your plans.

New long-haul Business Class?

Singapore Airlines will introduce its long-awaited closed-door suite-style Business Class on the Airbus A350 Long Haul from the second quarter of 2026. The airline plans to retrofit all of these aircraft by the end of 2030, though take it with a pinch of salt – if history is any guide, these programmes always take longer than promised!

This development does put Bangkok on the “possible” list for the new seats this year – but with 20+ other options for the carrier to choose from – London being a prime early candidate – it would probably be a bit far-fetched to suggest that the Thai capital is a likely pick at this early stage!

That said, shorter routes like this do ‘dovetail’ nicely with long-haul services (e.g. BKK + LHR on alternate days) for optimal aircraft utilisation, so we expect at least some regional cities to pick up the new seats relatively early in the refit game – but we certainly wouldn’t recommend booking or redeeming SQ722/721 purely with this possibility in mind.

Hopefully we will have more news on this exciting new product’s deployment on the network following the launch event, which is scheduled for the first half of this year.

Premium Economy is sold as Economy Class

SIA’s Airbus A350 Long Haul aircraft are three-class models with Business, Premium Economy and Economy cabins installed.

As expected, the carrier has instead decided to sell Premium Economy seats as Economy Class on these short flights, and allow customers to pay an additional fee for the wider seat in this cabin with additional legroom, but with no service differentiation offered – like champagne and upgraded meals.

This is already the case on the airline’s regular flights to the likes of KL, Jakarta and Ho Chi Minh, using aircraft equipped with Premium Economy Class cabins.

While there is no priority service on the ground, enhanced miles earning or upgraded F&B on board when sitting in this cabin on these flights, here’s what SIA’s Premium Economy seat offers:

• 38″ seat pitch (6″ more than Economy Class)
• 19″ seat width (1″ more than Economy Class)
• 8″ seat recline (2″ more than Economy Class)
• 2-4-2 seating layout (3-3-3 in Economy Class)
• 13.3″ HD touchscreen monitor (2.1″ bigger than Economy Class)
• In-built calf rest and footrest
• 2 USB ports and AC power supply
• Adjustable reading light

One of the major benefits is the couple seating option by the window in Premium Economy, thanks to the 2-4-2 layout.

Here’s how the seat selection fees look for choosing a spot in the Premium Economy cabin as an Economy Class passenger on these Bangkok flights.

There are discounts applied, based on your KrisFlyer status, but remember for PPS Club members advance seat selection in the Premium Economy section is free of charge, which is a nice perk.

Singapore Airlines Premium Economy Seat Selection (on Bangkok flights)
Status	PY Standard	PY Extra Legroom
Non-KF	US$30.00 (~S$38)	US$50.00 (~S$63)
KF Basic	US$28.50 (~S$36)	US$47.50 (~S$60)
KF Elite Silver (full details)	US$27.00 (~S$34)	US$45.00 (~S$57)
KF Elite Gold (full details)	US$25.50 (~S$32)	US$42.50 (~S$54)
PPS Club (full details)	Free	Free

These seat selection fees do not vary based on your Economy Class fare type (e.g. Lite, Standard, Flexi). They also apply to those booked on any award redemption in the Economy Class cabin (i.e. Promo, Saver or Advantage).

There’s an alternative tactic though, if you don’t wish to pay extra to sit in this cabin.

When online check-in opens at exactly 48 hours prior to your flight’s departure time, all seat selection fees are cancelled and any passenger can select any available seat for free within their cabin class.

In this case, that includes the Premium Economy section, for those booked in Economy on these specific A350 Long Haul Bangkok flights.

We therefore strongly recommend checking the Manage Booking portal as soon as the clock hits 48 hours prior to your departure time, at which point you should then see the same Premium Economy seat selection that existed for a fee just a few minutes before, all available to select for free.

This strategy won’t always work, but it’s definitely worth a try.

One slightly frustrating “feature” of the Singapore Airlines website and app is that since COVID-19, once online check-in opens 48 hours before departure it often no longer allows you to modify your seat selection, making it impossible to move into an empty seat.

In this case, you can still switch your seats by calling SIA or using Kris the Chatbot (click “Chat with a live agent”). They will happily assist to move you to an unoccupied seat in our experience.

KrisFlyer award redemptions

Singapore Airlines KrisFlyer members can redeem miles for flights between Singapore and Bangkok at the following award rates per person, one-way:

KrisFlyer Redemption Singapore ⇄ Bangkok (one-way)
Airline / Cabin		Saver	Advantage
	Economy	13,000	27,500
	Business	25,000	46,000
	Economy	2,500	5,500

Taxes and fees apply in addition to miles and typically total around S$68 from Singapore to Bangkok and S$32 in the return direction.

Note that redemptions made on or after 1st April 2026, for travel on or after 1st October 2026, will also be hit with Singapore’s new SAF tax on this route, so try to redeem future-dated flights before then.

SIA’s addition of a seventh daily Singapore – Bangkok rotation is a significant capacity boost on one of the airline’s most important regional routes, adding additional flexibility for travellers with the convenient late-morning departure from Singapore and afternoon return from Bangkok.

The real highlight here though is the return of the 2013 Business Class product on the A350 Long Haul – four days per week.

That offers a more spacious alternative to the 2018 Regional seats that currently dominate the route. For those flying on Tuesday, Thursday, Saturday or Sunday, it may be worth specifically targeting this new SQ722/721 service to experience the wider seats in this cabin.

Those who want a bit more space can also opt for the Premium Economy cabin, particularly PPS Club members who can select these seats for free, adding the rare option to secure paired window seats on these flights.

With the new service potentially switching to A350 Medium Haul operation from late October 2026, grab it while you can.

(Cover Photo: Shutterstock)