Singapore Airlines

SQ321 Flight Status

According to Trip.com real-time data, the SQ321 flight operated by Singapore Airlines on May 27, 2026 is scheduled to fly from London (LHR) to Singapore (SIN). The flight is expected to depart at 22:05 (local time in London, UTC+1) and land at 18:30 (local time in Singapore, UTC+8)

Tue, May 26

Wed, May 27

Thu, May 28

LON-SIN

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Scheduled

Your flight will depart on time.

London(LHR)

22:05

Scheduled: 22:05, May 26

Heathrow Airport T2

13h 25m

Singapore(SIN)

18:30

Scheduled: 18:30, May 27

Singapore Changi Airport

Check-in Counter

Boarding Gate

Arrival Gate

Baggage

LON-SIN

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Scheduled

Your flight will depart on time.

London(LHR)

22:05

Scheduled: 22:05, May 27

Heathrow Airport T2

13h 25m

Singapore(SIN)

18:30

Scheduled: 18:30, May 28

Singapore Changi Airport

Check-in Counter

Boarding Gate

Arrival Gate

Baggage

LON-SIN

Access more flight status info on the Trip.com app

Scheduled

Your flight will depart on time.

London(LHR)

22:05

Scheduled: 22:05, May 28

Heathrow Airport T2

13h 25m

Singapore(SIN)

18:30

Scheduled: 18:30, May 29

Singapore Changi Airport

Check-in Counter

Boarding Gate

Arrival Gate

Baggage

Information provided by VariFlight. Please refer to airport announcements for the most up-to-date information. If this is not your flight, you can browse more options for flights from London to Singapore to find your schedule.

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SQ321

SQ321 Aircraft Details

According to Trip.com real-time data, the SQ321 flight flying from London to Singapore on 5/27/2026 is operated by the aircraft model Boeing 777-300ER. This aircraft has been in service for 16y, 2m. The aircraft is equipped with Up to 316 seats.

Boeing 777-300ER

Punctuality (Departure)

87%

Punctuality (Arrival)

100%

Early on average

24 minutes

Age

16y, 2m

Seats

Up to 316

Flight Distance

Economy

Premium Economy

Business

First

In-Flight Services

Meal included

Seatback entertainment system

Wi-Fi (free)

USB port and power outlet

Seat Information

81 cm

More legroom than on 23% of flights

48 cm

Seat width better than on 23% of flights

110°

Reclining Angle

3-3-3

Seat layout example

In-Flight Services

Meal included

Seatback entertainment system

Wi-Fi (free)

USB port and power outlet

Seat Information

97 cm

Legroom

50 cm

Seat width

135°

Reclining Angle

2-4-2

Seat layout example

In-Flight Services

Meal included

Seatback entertainment system

Wi-Fi (free)

USB port and power outlet

Seat Information

130 cm

Legroom

86 cm

Seat width better than on 40% of flights

180°

Reclining Angle Fully reclinable

1-2-1

Seat layout example

In-Flight Services

Meal included

Seatback entertainment system

Wi-Fi (free)

USB port and power outlet

Seat Information

180 cm

Legroom

89 cm

Seat width better than on 23% of flights

180°

Reclining Angle Fully reclinable

1-2-1

Seat layout example

Flight History for SQ321

Trip.com historical records show that the last SQ321 flight departed on Tue, May 26 from LHR at approximately 22:05. This flight is expected to arrrive in SIN at 18:30.

Date	Airport		Aircraft Model	Departure	Arrival	Status
Date	Departure	Arrival	Aircraft Model	Departure	Arrival	Status
Fri, May 22	London (LHR)	Singapore (SIN)	B77W	22:05	18:30	Scheduled
Sat, May 23	London (LHR)	Singapore (SIN)	B77W	22:05	18:30	Scheduled
Sun, May 24	London (LHR)	Singapore (SIN)	B77W	22:05	18:30	Scheduled
Mon, May 25	London (LHR)	Singapore (SIN)	B77W	22:05	18:30	Scheduled
Tue, May 26	London (LHR)	Singapore (SIN)	B77W	22:05	18:30	Scheduled
Wed, May 27	London (LHR)	Singapore (SIN)	B77W	22:05	18:30	Scheduled
Thu, May 28	London (LHR)	Singapore (SIN)	B77W	22:05	18:30	Scheduled

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SQ321 On-Time Performance

Based on the average performance of this flight over the past 30 trips, the on-time departure rate of SQ321 is 87% (Late on average 17 minutes), and the on-time arrival rate is 100% (Early on average 24 minutes).

On-Time Departures

Punctuality

87%

Late on average 17 minutes

Early

On time

87%

30 mins late

10%

60 mins late

90 mins late

Cancelled