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SQ317 vs SQ321 Seat Maps, London to Singapore | SeatMap

Compare seat maps
SQ317 vs SQ321

SQ 317 vs SQ 321, London to Singapore seat maps compared.

Singapore Airlines vs Singapore Airlines, London (LHR) to Singapore (SIN): every cabin compared seat by seat, with scores, legroom, layouts and the seats to avoid.

Upper deck

Main deck

Long-haul · 10,883 km

Airbus A380-800

LHR 10:40 → SIN 07:50 +1 · 13h 10m

Seat mapOpen seat map for SQ 317 Live seats on SQ 317

Long-haul · 10,883 km

Boeing 777-300ER

LHR 21:45 → SIN 19:00 +1 · 13h 15m

Seat mapOpen seat map for SQ 321 Live seats on SQ 321

Summary

SpecSQ 317SQ 321

Aircraft

Airbus A380-800

Your two flights

Singapore Airlines 317

London to Singapore

Seat map for SQ 317 Live seats on SQ 317

Singapore Airlines 321

London to Singapore

Seat map for SQ 321 Live seats on SQ 321

More comparisons

BA15 vs SQ321 · London to SingaporeBritish Airways vs Singapore Airlines · Boeing 777-300ER

Notes

Seat scores are SeatMap's rating of every seat out of 10, from its measures and what sits around it. Good or better means 7 and up.
Legroom, width and recline are the airline's published figures for each cabin. A range means the seats in that cabin differ.
Seat maps show the aircraft the airline has planned for this flight on Tue, Nov 3, 2026. Airlines can change the aircraft before departure.
Open and taken seats, live from the airline, come with SeatMap Pro on each flight's own seat map.

Wide-body · Two decks · 69 rows

Boeing 777-300ER

Wide-body · One deck · 39 rows

Seats on board

471

Seats on board

In 4 cabins: First, Business, Premium Economy and Economy

264

Seats on board

In 4 cabins: First, Business, Premium Economy and Economy

Average seat score

5.7/10

Average seat score+0.1

Every seat rated out of 10, across 471 seats

5.6/10

Average seat score

Every seat rated out of 10, across 264 seats

Flight time

13h 10m5m quicker

LHR → SIN · 10,883 km

13h 15m

LHR → SIN · 10,883 km

Wi-Fi

Free Wi-Fi

In every cabin

Free Wi-Fi

In every cabin

Screens and power

Seat-back screens

AC/USB power in every cabin

Seat-back screens

AC/USB power in every cabin

Cabins

SpecSQ 317SQ 321

Cabin mix

471 seats from nose to tail

264 seats from nose to tail

First

First6

Suites · Rows 1–3

First4

Row 1

Business

Business78

Rows 11–97

Business48

Rows 11–23

Premium Economy

Premium Economy44

Rows 31–37

Premium Economy28

Rows 31–34

Economy

Economy343

Rows 41–79

Economy184

Rows 41–62

First class · Suites vs First

SpecSQ 317SQ 321

First: Seat

SuitesFull flat

6 seats in rows 1–3

FirstFull flat

4 seats in row 1

First: Layout

Business class

SpecSQ 317SQ 321

Business: Seat

BusinessFull flat

78 seats in rows 11–97

BusinessFull flat

48 seats in rows 11–23

Business: Layout

Premium Economy

SpecSQ 317SQ 321

Premium Economy: Seat

Premium EconomyStandard

44 seats in rows 31–37

Premium EconomyStandard

28 seats in rows 31–34

Premium Economy: Layout

Economy class

SpecSQ 317SQ 321

Economy: Seat

EconomyStandard

343 seats in rows 41–79

EconomyStandard

184 seats in rows 41–62

Economy: Layout

Seat scores

SpecSQ 317SQ 321

Rating mix

20 seats rated good or better+14

Seats to pick and avoid

SpecSQ 317SQ 321

Extra legroom

22 seatsMore

Extra legroom · 5% of seats

17 seats

Extra legroom · 6% of seats

Schedule

SpecSQ 317SQ 321

Departs

10:40

London (LHR), local time

21:45

London (LHR), local time

Arrives

07:50+1

Singapore (SIN), local time, next day

19:00+1

Singapore (SIN), local time, next day

Seat maps

Scroll together

ExcellentGoodFairBelow averagePoor

SQ 317 seat map · Airbus A380-800

Open SQ 317 seat map

SQ 321 seat map · Boeing 777-300ER

Open SQ 321 seat map

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1-1

2 seats across, one aisle, every seat on an aisle

1-2-1

4 seats across, two aisles, every seat on an aisle

First: Seat size

Legroom

81"

Width

35"

Recline

180°

Legroom

81"

Width

35"

Recline

180°

First: Seat score

6.0/10

Average seat score

Best seat 6.0

6.0/10

Average seat score

Best seat 6.0

First: Standout seats

1Bassinet position

Seats with more room or a bassinet

1Bassinet position

Seats with more room or a bassinet

First: Amenities

Wi-FiFree
PowerAC/USB
ScreenSeat-back screen

Wi-FiFree
PowerAC/USB

1-2-1

4 seats across, two aisles, every seat on an aisle

1-2-1

4 seats across, two aisles, every seat on an aisle

Business: Seat size

Legroom

55"

Width

25"

Recline

180°

Legroom

55"

Width

28"

+3″

Recline

180°

Business: Seat score

6.0/10

Average seat score+0.5

Best seat 6.0

5.5/10

Average seat score

Best seat 6.0

Business: Standout seats

5Bassinet position

Seats with more room or a bassinet

4Bassinet position

Seats with more room or a bassinet

Business: Amenities

Wi-FiFree
PowerAC/USB
ScreenSeat-back screen

Wi-FiFree
PowerAC/USB

2-4-2

8 seats across, two aisles

2-4-2

8 seats across, two aisles

Premium Economy: Seat size

Legroom

36-38"

Width

19.5"

Recline

Legroom

38"

+1″

Width

19.5"

Recline

Premium Economy: Seat score

5.9/10

Average seat score

Best seat 8.8 · 4 seats rated good or better

5.9/10

Average seat score

Best seat 8.8 · 2 seats rated good or better

Premium Economy: Standout seats

4Extra legroom2Bassinet position

Seats with more room or a bassinet

4Extra legroom4Exit row2Bassinet position

Seats with more room or a bassinet

Premium Economy: Amenities

Wi-FiFree
PowerAC/USB
ScreenSeat-back screen

Wi-FiFree
PowerAC/USB

3-4-3

10 seats across, two aisles

3-3-3

9 seats across, two aisles

Economy: Seat size

Legroom

32"

Width

18.5"

+0.5″

Recline

+1″

Legroom

32"

Width

18"

Recline

Economy: Seat score

5.6/10

Average seat score

Best seat 8.8 · 16 seats rated good or better

5.6/10

Average seat score

Best seat 8.8 · 4 seats rated good or better

Economy: Standout seats

18Extra legroom18Exit row8Bassinet position

Seats with more room or a bassinet

13Extra legroom6Exit row2Bassinet position

Seats with more room or a bassinet

Economy: Amenities

Wi-FiFree
PowerAC/USB
ScreenSeat-back screen

Wi-FiFree
PowerAC/USB

Excellent0
Good20
Fair375
Below average46
Poor30

6 seats rated good or better

Excellent0
Good6
Fair214
Below average30
Poor14

Along the plane

NoseTail

Best stretch: rows 18–31, averaging 6.4

Exit row

18 seatsMore

Exit row · 4% of seats

10 seats

Exit row · 4% of seats

Bassinet position

16 seatsMore

Bassinet position · 3% of seats

9 seats

Bassinet position · 3% of seats

Close to a lavatory

54 seats

Close to a lavatory · 11% of seats

36 seatsFewer

Close to a lavatory · 14% of seats

Close to a galley

60 seats

Close to a galley · 13% of seats

39 seatsFewer

Close to a galley · 15% of seats

Limited recline

30 seats

Limited recline · 6% of seats

14 seatsFewer

Limited recline · 5% of seats

Wing in the window view

53 seats

Wing in the window view · 11% of seats

10 seatsFewer

Wing in the window view · 4% of seats

Misaligned window

2 seatsFewer

Misaligned window · under 1% of seats

8 seats

Misaligned window · 3% of seats

No window

NoneFewer

No window

2 seats

No window · 1% of seats

Tray table in the armrest

30 seats

Tray table in the armrest · 6% of seats

22 seatsFewer

Tray table in the armrest · 8% of seats

No floor storage for take-off

38 seats

No floor storage for take-off · 8% of seats

26 seatsFewer

No floor storage for take-off · 10% of seats

Can get cold by the exit

6 seats

Can get cold by the exit · 1% of seats

4 seatsFewer

Can get cold by the exit · 2% of seats

Distance

10,883 km

Great-circle distance

10,883 km

Great-circle distance

ScreenSeat-back screen

NoseTail

Best stretch: rows 53–57, averaging 6.0