United Airlines is set to operate its latest ‘Polaris 2.0’ Business Class cabin on both of its daily Singapore – San Francisco flights from 2nd August 2026, meaning 100% of the carrier’s Singapore services will feature the new seats from that date.

When the new cabin debuted on the UA2/UA1 service in late April, the carrier’s second daily frequency, UA28/UA29, retained the existing Polaris seats. We flagged at the time that this was likely to be a short-lived situation given the pace of Boeing 787-9 deliveries, and that’s now been confirmed.

The schedule

From 2nd August, both daily Singapore – San Francisco departures will operate with the new product.

United Airlines
‘Polaris 2.0’ Business Class
Singapore San Francisco
From 2 Aug 2026

			Days
			M	T	W	T	F	S	S
	UA2 787-9
SIN 08:45		SFO 09:30
Duration: 15:45
	UA28 787-9
SIN 20:35		SFO 21:20
Duration: 15:45

The UA29 service departing San Francisco picks up the new product one day earlier, from 1st August 2026.

United Airlines
‘Polaris 2.0’ Business Class
San Francisco Singapore
From 1 Aug 2026

			Days
			M	T	W	T	F	S	S
	UA29 787-9
SFO 11:10		SIN 18:35*
Duration: 16:25
	UA1 787-9
SFO 22:50		SIN 06:15^
Duration: 16:25

* Next day
^ Two days later

This means all 14 weekly United frequencies between Singapore and San Francisco will feature the latest cabin product from early August, giving passengers a guaranteed ‘Polaris 2.0’ experience regardless of which departure they book in either direction.

The news comes as United’s fleet of Boeing 787-9s with the new ‘Elevated’ interiors reaches four aircraft, with a fifth delivery imminent and a further 66 in the pipeline at near-term delivery rates of one per month.

The new products are also currently featuring on United’s daily UA900/901 San Francisco – London Heathrow flights, with UA939/930 also set to upgrade on that route from next week.

What it means for Singapore travellers

The expansion is significant for several reasons.

Most obviously, it doubles the availability of the new product from Singapore. With 64 Polaris Business Class seats on each flight (including eight Studio Suites), that’s 1,792 Business Class seats per week in both directions, up from the current 1,568, which includes a mix of the new and old Polaris cabins.

To put that in perspective, Singapore Airlines offers 1,526 Business Class seats per week on its San Francisco route, across one daily A350 Long Haul (42 seats) and one daily A350 ULR (67 seats). From 2nd August, United will offer 17% more Business Class capacity on the same route, a significant shift for a US carrier going head-to-head with SIA on one of its key long-haul routes.

The evening UA28 departure at 20:35 also gives passengers a second option that many prefer for a late night departure to the US West Coast, compared to the morning UA2 at 08:45, which does mean getting up painfully early.

A quick recap: What makes ‘Polaris 2.0’ special

If you missed our detailed coverage when the product was first announced, here’s a quick refresher on what sets the new cabin apart from the existing Polaris seats.

The new seats are based on the Adient Aerospace Ascent model in a 1-2-1 configuration with direct aisle access for all 64 passengers, and feature:

• Closing privacy doors (still locked in the open position, awaiting FAA regulatory approval)
• A larger sleeping space in ‘double bed’ format for couples at middle seat pairs in the rear Polaris cabin
• 4K 19-inch seat-back entertainment screens with Bluetooth audio pairing
• Wireless charging pads, USB-C and other electrical outlets
• Custom mood lighting and personalised do-not-disturb indicators
• Free Starlink Wi-Fi across all cabins

The eight Studio Suites at the front of each cabin section remain the standout feature, with 27-inch 4K OLED screens, companion dining via an ottoman seat, and an Ossetra caviar amuse-bouche paired with Laurent-Perrier Cuvée Rosé Champagne – available for a US$499-599 supplement over a standard Polaris ticket.

The lower cabins haven’t been neglected either. Premium Plus passengers get 16-inch 4K screens with wireless charging and privacy dividers, while Economy features 13-inch 4K OLED screens, among the largest in the industry.

SIA’s new product: A longer wait than expected

The timing of United’s expansion is particularly noteworthy given Singapore Airlines’ recent confirmation that its own new closed-door Business Class won’t enter service until Q1 2027, a delay of at least six months on the original Q2 2026 target.

That means United will hold the hardware advantage on the SIN–SFO route for considerably longer than originally expected, with the best part of a year separating the two carriers’ new Business Class launches on this route.

SIA continues to fly its 2013 Business Class seats on both daily San Francisco flights (SQ32/31 and SQ33/34), a product that, while still comfortable, increasingly lacks the privacy doors, wireless charging, Bluetooth connectivity and modern IFE screens that travellers now expect in this cabin class.

Older, slower Wi-Fi can also a frustrating experience on such a long flight, while United has Starlink fitted to these aircraft already, something SIA jets won’t see until 2027 at the earliest.

Even once refits do get underway, SIA needs to use its longer-range “A350 LH+” aircraft on SQ32/31 flights to operate to and from San Francisco without payload restrictions, and since these planes are the newer ones in the fleet we doubt they will be first in line for cabin refits.

Meanwhile, SIA’s plan is for San Francisco to actually lose the A350 ULR during the refit process, with two A350 LH aircraft deployed instead, so it might be the last city to get the new seats on the ULR side too.

That means it could be some time, perhaps even late 2027 or beyond, before SIA stands up against United in terms of Business Class hard product on this route.

Redemption rates

Here are the award redemption rates using Singapore Airlines KrisFlyer miles to redeem on United flights (Star Award) compared to SIA flights on the Singapore – San Francisco route.

KrisFlyer Saver Redemption Rates SIN to/from SFO (one-way)
		Saver	Advantage
Economy	64,000	44,000	79,000
Premium Economy	n/a	79,000	n/a
Business	131,000	112,500	148,000

You might even want to splash out an extra 18,500 miles vs. an SIA Saver award to try out the “Polaris 2.0” experience.

Whether you redeem KrisFlyer miles for United or SIA flights on this route, taxes and fees of S$88.30 are payable in the Singapore – San Francisco direction and only around S$7 in the opposite direction, in addition to the miles outlay.

With both daily Singapore flights now loading the ‘Polaris 2.0’ cabin from 2nd August, United is delivering on the rapid rollout it promised when the product launched barely three months earlier. The evening UA28 departure in particular will be welcome news for travellers who prefer an evening departure timing to the USA but didn’t want to compromise on the cabin product.

From August, United will offer 1,792 Business Class seats per week on the SIN–SFO corridor, 17% more than the 1,526 Singapore Airlines provides, a clear capacity lead to go alongside the hardware advantage United now holds, given SIA’s confirmed delay to its own new Business Class until Q1 2027, and probably later for SFO itself.

For a US carrier to be leading Singapore Airlines on both product and premium capacity on the same route is an unusual position, and one that underlines how new product rollout timelines and delays can quickly shift the competitive dynamic on a route.

(Cover Photo: United Airlines)