How are the cabins and seat layouts arranged on United Airlines flight UA2?

On UA2’s Boeing 787-9, United Polaris® rows 1-17 have a 1-2-1 layout, and United Premium Plus rows 20-24 have a 2-3-2 layout. Economy rows 30-44 are usually 3-3-3, except rows 30-31, which are 3-0-3, and row 44, which is 0-3-0.

What is the average seat rating on UA2?

The 222 seats on the United Airlines Boeing 787-9 flying UA2 average 5.8 out of 10 for comfort. By cabin: United Polaris® 6.0, United Premium Plus 5.5 and Economy 5.7. 4 seats rate Good or better, and 23 rate below average.

What legroom and seat widths are listed for UA2’s three cabins?

United Polaris® has 42" of legroom and 21" of width; United Premium Plus has 38" of legroom and 19" of width. Economy has 31" of legroom and 16.55-17.6" of width.

What route does UA2 fly?

UA2 is the United Airlines flight from Singapore (SIN, Singapore Changi) to San Francisco (SFO, San Francisco International), flown on the Boeing 787-9. It takes about 17h 40m for 13,582 km (8,439 miles), estimated from the great-circle distance. The return flight, UA29, flies San Francisco to Singapore.

How far do seats recline in each cabin on UA2, and which seats are full flat?

United Polaris® seats recline 180° and are full flat seats. United Premium Plus seats recline 6", while Economy seats recline 3"; both are listed as standard seats.

Can I check real-time seat availability on UA2?

Yes. Open UA2 in the live seat map and choose your travel date to see which seats are still open on that day, each coloured by its comfort score.

What Wi-Fi, power and entertainment are listed for UA2’s seats?

Wi-Fi is enabled in United Polaris®, United Premium Plus and Economy. Power is available via AC/USB, and free on demand entertainment is listed in all 3 cabins.

UA2 seat map

United Airlines Boeing 787-9, 3 classes, from Singapore (SIN) to San Francisco (SFO)

Departs: Singapore (SIN); Singapore Changi, Singapore
Arrives: San Francisco (SFO); San Francisco International, United States
Flight time: About 17h 40m; Estimated from 13,582 km (8,439 miles)
Aircraft: Boeing 787-9; 3 classes, 1 deck

Your flight date

Check live availability

UA2 is the United Airlines flight from Singapore (SIN) to San Francisco (SFO), scheduled on a Boeing 787-9 with 222 seats in 3 classes: 64 in United Polaris®, 35 in United Premium Plus and 123 in Economy. The best seats are 1A in United Polaris®, 21A in United Premium Plus and 30C in Economy. Avoid row 44 at the back of Economy: limited recline, near the lavatories and the galley.

UA2 interactive seat map

Select a seat for its comfort score and what to watch out for. Colours show comfort, not availability.

Seat scores on UA2

Covers all 222 seats on the aircraft.

Excellent9.0+0 seats
Good7.0 to 8.94 seats
Fair5.0 to 6.9195 seats
Below average3.0 to 4.912 seats
Poorunder 3.011 seats

Scores weigh legroom, recline, window position and distance from galleys, lavatories and exits. Seat-map glossary

Best in United Polaris®
Fair6.8 / 10
Window seat
Best in United Premium Plus
Fair6.5 / 10
Window seat, wing in window
Best in Economy
Good8.8 / 10
Aisle seat, extra legroom, exit row, near lavatory, near galley

Seat data verified October 21, 2026. How we verify seat data

Which plane is UA2 on?

The aircraft and layout our seat map for UA2 comes from.

Date	Sun, Apr 11
Aircraft	Boeing 787-9
Layout	64J, 35W, 123Y (222 seats)

Airlines can swap planes close to departure, so confirm the aircraft at check-in.

UA2 airports

Where the flight leaves from and lands.

Departure: Singapore Changi SIN; Singapore
Arrival: San Francisco International SFO; San Francisco, United States

Seats by cabin on UA2

How the 222 seats on this aircraft split by cabin.

United Polaris®64 seats
United Premium Plus35 seats
Economy123 seats

Open seats change daily. Check live availability for your date

Best seats on UA2

The top seats in every cabin, the ones to skip, and the pick for what matters to you.

Best seats on every aircraft

Comfort score out of 10Excellent9.0+Good7.0 to 8.9Fair5.0 to 6.9Below average3.0 to 4.9Poorunder 3.0

United Polaris®

Rows 1 to 17, 64 seats

Top picks

Window seatFair6.8 / 10
Window seatFair6.8 / 10
Aisle seatFair6.8 / 10

Seats to avoid

Window seat, misaligned windowBelow average4.2 / 10
Window seat, misaligned windowBelow average4.2 / 10

Best for

Window
Aisle
Sleep
Couples

United Premium Plus

Rows 20 to 24, 35 seats

Top picks

Window seat, wing in windowFair6.5 / 10
Window seat, wing in windowFair6.5 / 10
Window seat, wing in windowFair6.5 / 10

Seats to avoid

Window seat, near lavatory, near galleyPoor2.5 / 10
Window seat, near lavatory, near galleyPoor2.5 / 10
Aisle seat, near lavatory, near galleyBelow average3.4 / 10

Best for

Window
Aisle
Extra legroom
Sleep
Couples

Economy

Rows 30 to 44, 123 seats

Top picks

Aisle seat, extra legroom, exit row, near lavatory, near galleyGood8.8 / 10
Aisle seat, extra legroom, exit row, near lavatory, near galleyGood8.8 / 10
Middle seat, extra legroom, exit row, near lavatory, near galleyGood8.8 / 10

Seats to avoid

Aisle seat, limited recline, near lavatoryPoor2.5 / 10
Middle seat, limited recline, near lavatoryPoor2.5 / 10
Aisle seat, limited recline, near lavatoryPoor2.5 / 10

Best for

Window
Aisle
Extra legroom
Sleep
Couples

Row-by-row notes for UA2

The rows worth knowing about before you choose, from the Boeing 787-9 cabin layout. New to terms like bulkhead or pitch? See the seat-map glossary.

Row 1United Polaris®. First row of the cabin.
Row 9United Polaris®. Near the lavatories and the galley.
Row 17United Polaris®. Last row of the cabin.
Row 20United Premium Plus. First row of the cabin: extra legroom; no floor storage.
Row 24United Premium Plus. Last row of the cabin: near the lavatories and the galley.
Row 30Economy. First row of the cabin and an exit row: extra legroom; near the lavatories and the galley, no floor storage and tray table in the armrest.
Row 43Economy. Limited recline, near the lavatories.
Row 44Economy. Last row of the cabin: limited recline, near the lavatories and the galley.

Cabins on UA2

Layout, legroom and amenities in each class on the United Airlines Boeing 787-9.

Compare Wi-Fi and entertainment across airlines

United Polaris®

Rows 1 to 17, 64 seats

Layout: 1-2-1
Pitch: 42"
Width: 21"
Recline: 180°

Lie-flat seat. Sold as United Polaris Studio® and United Polaris®.

Wi-Fi enabled
AC/USB power
Free on demand entertainment

United Premium Plus

Rows 20 to 24, 35 seats

Layout: 2-3-2
Pitch: 38"
Width: 19"
Recline: 6"

Standard seat with 6" of recline.

Wi-Fi enabled
AC/USB power
Free on demand entertainment

Economy

Rows 30 to 44, 123 seats

Layout: 3-3-3
Pitch: 31"
Width: 16.55-17.6"
Recline: 3"

Standard seat with 3" of recline. Sold as United Economy Plus® and Economy.

Wi-Fi enabled
AC/USB power
Free on demand entertainment

UA2 questions

Flying UA2? Answered.

The aircraft, the cabins and the seats on this flight, answered from its seat map data.

The highest-rated seat on UA2 is 30C in Economy, with a comfort score of 8.8 out of 10: aisle seat, extra legroom, exit row, near lavatory, near galley. In the other cabins, the best seats are 1A in United Polaris® (6.8) and 21A in United Premium Plus (6.5).

Other flights from Singapore to San Francisco

Every flight we have mapped from Singapore to San Francisco, with the plane and the best seats, so you can compare before you book.

UA2 seat map
United Airlines
This page
SIN
Singapore
about 17h 40mSingapore to San Francisco
SFO
San Francisco
Boeing 787-9222 seats
SQ34 seat map
Singapore Airlines
SIN
Singapore
about 17h 40mSingapore to San Francisco
SFO
San Francisco
Airbus A350-900253 seats
Flying a different Singapore to San Francisco flight?
The live seat map shows the aircraft and the open seats for your flight number and date.
Search Singapore to San Francisco in the live seat map

Flying back? San Francisco to Singapore

More United Airlines flights

United Airlines flights we have mapped on other routes.

All United Airlines seat maps

UA7 seat map
United Airlines
IAH
Houston
about 14hHouston to Tokyo
NRT
Tokyo
Boeing 787-9222 seats
UA27 seat map
United Airlines
DEN
Denver
about 10hDenver to London
LHR
London
Boeing 787-9257 seats
UA32 seat map
United Airlines
LAX
Los Angeles
about 15h 25mLos Angeles to Cebu City/Lapu-Lapu City
CEB
Cebu City/Lapu-Lapu City
Boeing 787-9257 seats
UA63 seat map
United Airlines
GRU
São Paulo
about 10h 35mSão Paulo to Houston
IAH
Houston
Boeing 787-9222 seats
UA82 seat map
United Airlines
EWR
Newark
about 15h 20mNewark to New Delhi
DEL
New Delhi
Boeing 787-9257 seats
UA99 seat map
United Airlines
MEL
Melbourne
about 16h 35mMelbourne to Los Angeles
LAX
Los Angeles
Boeing 787-9257 seats