Singapore Airlines (SIA) will increase flight frequencies and boost passenger capacity across its network in the 2025 Northern Summer operating season (30 March 2025 to 25 October 2025), supporting the higher demand for air travel to several popular destinations.
From 30 March 2025, SIA will have a daily service to London (Gatwick), up from the current five-times weekly services. Together with its four-times daily flights to London (Heathrow), this will give the Airline five daily services to the United Kingdom’s capital.
Services to Rome will increase to five times a week between 26 June 2025 and 28 August 2025, up from the current four weekly flights.
SIA will delink its three-times weekly Singapore-Milan-Barcelona flights from 24 June 2025 to 7 September 2025, and operate more direct flights between Singapore and the two European cities. The Airline will mount five-times weekly direct flights to Barcelona during this period, up from the current two weekly flights. Milan will have a daily service, up from four-times weekly currently.
Flights to Adelaide will go up to 10 a week across the Northern Winter 2024 and Northern Summer 2025 seasons, up from the current seven-times weekly services. Frequencies to Ho Chi Minh City will rise to thrice daily, up from 19-times weekly, and services to Siem Reap will go to twice daily, up from a daily service.
A three-times weekly service will be mounted to Johannesburg from 11 December 2024 to 10 January 2025, and from 2 April 2025 to 24 October 2025, bringing the total number of flights to the city to 10 times a week, up from the current daily services, during these periods.
The Airbus A380 will return to Tokyo (Narita) between 30 March 2025 and 31 May 2025 on one of its two daily services, replacing the Boeing 787-10. The A380 will stop operating to Mumbai from 28 July 2025 to 31 August 2025, and Delhi from 23 June 2025 to 27 July 2025, and will be replaced by the Boeing 777-300ER.
In line with its capacity adjustments, SIA will suspend services to Houston via Manchester from 1 April 2025. However, SIA will maintain five-times weekly services between Singapore and Manchester via SQ302 and SQ301.
Mr Dai Haoyu, Acting Senior Vice President Marketing Planning, Singapore Airlines, said: “Singapore Airlines regularly reviews our network and routes to align our capacity with demand. These adjustments, ahead of next summer, cater to the higher demand to several destinations, particularly during the traditional mid-year peak travel season, enabling our customers to confidently make their 2025 travel plans. We look forward to connecting our customers to the world with SIA’s extensive network, and delivering an unparalleled travel experience.”
The following is Singapore Airlines’ schedule of operations to Australian cities in August:
| Departure city | Number of weekly services | Aircraft |
| Adelaide | 7 | Boeing 787-10 |
| Brisbane | 25 | A350-900 Medium Haul |
| Cairns | 4 | A350-900 Medium Haul |
| Darwin | 7 | Boeing 737-8 |
| Melbourne | 35 | Airbus A350-900, Boeing 777-300ER, A350-900 Medium Haul |
| Perth | 28 | Boeing 787-10, A350-900 Medium Haul |
| Sydney | 28 | Airbus A380, Boeing 777-300ER |
SINGAPORE AIRLINES’ NETWORK ADJUSTMENTS FOR 2025 NORTHERN SUMMER SEASON
Singapore Airlines’ adjustments to its flight schedules for the 2025 Northern Summer season (30 March 2025 to 25 October 2025) are detailed below. All times mentioned are in local time zones. Please note that all flight services are subject to regulatory approvals, and the aircraft deployment may vary based on operational requirements. Tickets will be made available for sale progressively through SIA’s various distribution channels.
EUROPE
BARCELONA
From 24 June 2025 to 7 September 2025, SIA will delink its three-times weekly Singapore-Milan-Barcelona services and operate direct flights between Singapore and these two cities.
From 22 June 2025 to 5 September 2025, SQ388 and SQ387 will operate as a five-times weekly direct service between Singapore and Barcelona, up from the current two-times weekly service.
| 22 June 2025 – 5 September 2025 | ||||
| SQ388 | Singapore – Barcelona | Tuesdays, Wednesdays, Thursdays, Saturdays, Sundays | 2335hrs – 0655hrs (+1) | Airbus A350-900LH |
| SQ387 | Barcelona – Singapore | Mondays, Wednesdays, Thursdays, Fridays, Sundays | 1200hrs – 0655hrs (+1) | Airbus A350-900LH |
LONDON (GATWICK)
From 30 March 2025, SQ312 and SQ309 between Singapore and London (Gatwick) will operate as a daily service, instead of a five-times weekly service.
| 30 March 2025 – 26 October 2025 | ||||
| SQ312 | Singapore – London (Gatwick) | Daily | 2355hrs – 0625hrs (+1) | Airbus A350-900LH |
| SQ309 | London (Gatwick) – Singapore | Daily | 1015hrs – 0620hrs (+1) | Airbus A350-900LH |
MANCHESTER
From 1 April 2025, SQ302 and SQ301 between Singapore and Manchester will operate as a five-times weekly service. SQ52 and SQ51 between Singapore and Houston via Manchester will be suspended from 1 April 2025.
| 1 April 2025 – 25 October 2025 | ||||
| SQ302 | Singapore – Manchester | Tuesdays, Wednesdays, Fridays, Saturdays, Sundays | 0210hrs – 0855hrs | Airbus A350-900LH |
| SQ301 | Manchester – Singapore | Tuesdays, Wednesdays, Fridays, Saturdays, Sundays | 1115hrs – 0740hrs (+1) | Airbus A350-900LH |
MILAN
From 24 June 2025 to 7 September 2025, SIA will delink its three-times weekly Singapore-Milan-Barcelona services and operate direct flights between Singapore and these two cities.
From 22 June 2025 to 7 September 2025, SQ356 and SQ355 will operate as a daily service between Singapore and Milan, up from the current four-times weekly service.
| 22 June 2025 – 7 September 2025 | ||||
| SQ356 | Singapore – Milan | Daily | 2330hrs – 0610hrs (+1) | Airbus A350-900LH |
| SQ355 | Milan – Singapore | Daily | 1245hrs – 0700hrs (+1) | Airbus A350-900LH |
ROME
From 26 June 2025 to 28 August 2025, SQ366 and SQ365 will operate as a five-times weekly service between Singapore and Rome, up from the current four-times weekly service.
| 26 June 2025 – 28 August 2025 | ||||
| SQ366 | Singapore – Rome | Tuesdays, Wednesdays, Thursdays, Fridays, Sundays | 0130hrs – 0805hrs | Airbus A350-900LH |
| SQ365 | Rome – Singapore | Tuesdays, Wednesdays, Thursdays, Fridays, Sundays | 1200hrs – 0600hrs (+1) | Airbus A350-900LH |
NORTH ASIA
TOKYO (NARITA)
From 30 March 2025 to 31 May 2025, the Airbus A380-800 will replace the Boeing 787-10 on the daily SQ638 service from Singapore to Tokyo (Narita), and the return service SQ637 from 31 March 2025 to 1 June 2025.
| 30 March 2025 – 1 June 2025 | ||||
| SQ638 | Singapore – Tokyo (Narita) | Daily | 2355hrs – 0800hrs (+1) | Airbus A380-800 |
| SQ637 | Tokyo (Narita) – Singapore | Daily | 1110hrs – 1720hrs | Airbus A380-800 |
SOUTH EAST ASIA
HO CHI MINH CITY
From 27 October 2024, SQ184 and SQ183 between Singapore and Ho Chi Minh City will operate as a daily service, instead of a five-times weekly service. This will bring the total number of services to Ho Chi Minh City to thrice daily, up from the current 19 weekly services.
| 27 October 2024 – 29 March 2025 | ||||
| SQ184 | Singapore – Ho Chi Minh City | Daily | 1350hrs – 1505hrs | Airbus A350-900LH |
| SQ183 | Ho Chi Minh City – Singapore | Daily | 1615hrs – 1930hrs | Airbus A350-900LH |
| 30 March 2025 – 25 October 2025 | ||||
| SQ184 | Singapore – Ho Chi Minh City | Daily | 1330hrs – 1440hrs | Airbus A350-900LH |
| SQ183 | Ho Chi Minh City – Singapore | Daily | 1555hrs – 1855hrs | Airbus A350-900LH |
SIEM REAP
From 27 October 2024, SIA will mount a daily SQ166 and SQ165 service between Singapore and Siem Reap. This will bring the total number of services to Siem Reap to two-times daily, up from the current daily service.
| 27 October 2024 – 29 March 2025 | ||||
| SQ166 | Singapore – Siem Reap | Daily | 1430hrs – 1545hrs | Boeing 737-8 |
| SQ165 | Siem Reap – Singapore | Daily | 1640hrs – 2005hrs | Boeing 737-8 |
| 30 March 2025 – 25 October 2025 | ||||
| SQ166 | Singapore – Siem Reap | Daily | 1350hrs – 1505hrs | Boeing 737-8 |
| SQ165 | Siem Reap – Singapore | Daily | 1610hrs – 1925hrs | Boeing 737-8 |
SOUTH WEST PACIFIC
ADELAIDE
From 27 October 2024 to 28 March 2025, SIA will mount a three-times weekly SQ277 and SQ276 service between Singapore and Adelaide. Together with the daily SQ279 and SQ278 service, this will bring the total number of services to Adelaide to 10-times weekly.
From 30 March 2025, SQ277 and SQ276 will operate two additional days as a five-times weekly service instead, and SQ279 and SQ278 will operate five-times weekly instead of the current daily service.
| 27 October 2024 – 28 March 2025 | ||||
| SQ277 | Singapore – Adelaide | Wednesdays,
Fridays, Sundays |
0805hrs – 1720hrs | Boeing 787-10 |
| SQ276 | Adelaide – Singapore | Wednesdays,
Fridays, Sundays |
1835hrs – 2255hrs | Boeing 787-10 |
| 30 March 2025 – 4 October 2025 | ||||
| SQ277 | Singapore – Adelaide | Mondays, Thursdays, Fridays, Saturdays,
Sundays |
0805hrs – 1620hrs | Boeing 787-10 |
| SQ276 | Adelaide – Singapore | Mondays, Wednesdays, Fridays, Saturdays,
Sundays |
1735hrs – 2335hrs | Boeing 787-10 |
| 5 October 2025 – 25 October 2025 | ||||
| SQ277 | Singapore – Adelaide | Mondays, Thursdays, Fridays, Saturdays,
Sundays |
0805hrs – 1720hrs | Boeing 787-10 |
| SQ276 | Adelaide – Singapore | Mondays, Thursdays, Fridays, Saturdays,
Sundays |
1835hrs – 2335hrs | Boeing 787-10 |
| 27 October 2024 – 30 March 2025 | ||||
| SQ279 | Singapore – Adelaide | Daily | 2340hrs – 0905hrs (+1) | Boeing 787-10 |
| SQ278 | Adelaide – Singapore | Daily | 1030hrs – 1510hrs | Boeing 787-10 |
| 31 March 2025 – 4 October 2025 | ||||
| SQ279 | Singapore – Adelaide | Mondays, Tuesdays, Wednesdays, Fridays, Saturdays | 2310hrs – 0725hrs (+1) | Boeing 787-10 |
| SQ278 | Adelaide – Singapore | Tuesdays, Wednesdays, Thursdays, Saturdays, Sundays | 0910hrs – 1510hrs | Boeing 787-10 |
| 4 October 2025 – 26 October 2025 | ||||
| SQ279 | Singapore – Adelaide | Mondays, Tuesdays, Wednesdays, Fridays, Saturdays | 2310hrs – 0825hrs (+1) | Boeing 787-10 |
| SQ278 | Adelaide – Singapore | Tuesdays, Wednesdays, Thursdays, Saturdays, Sundays | 1010hrs – 1510hrs | Boeing 787-10 |
WEST ASIA AND AFRICA
DELHI
From 23 June 2025 to 27 July 2025, the Boeing 777-300ER will replace the Airbus A380-800 on the daily SQ406 and SQ403 service between Singapore and Delhi.
| 23 June 2025 – 27 July 2025 | ||||
| SQ406 | Singapore – Delhi | Daily | 1650hrs – 2010hrs | Boeing 777-300ER |
| SQ403 | Delhi – Singapore | Daily | 2155hrs – 0610hrs (+1) | Boeing 777-300ER |
JOHANNESBURG
From 11 December 2024 to 10 January 2025, and from 2 April 2025 to 24 October 2025, SIA will mount a three-times weekly SQ482 and SQ481 between Singapore and Johannesburg. This will bring the total number of services to Johannesburg to 10-times weekly, up from the current daily service.
| 11 December 2024 – 10 January 2025 | ||||
| SQ482 | Singapore – Johannesburg | Wednesdays,
Fridays, Sundays |
1635hrs – 2115hrs | Airbus A350-900LH |
| SQ481 | Johannesburg – Singapore | Wednesdays,
Fridays, Sundays |
2230hrs – 1455hrs (+1) | Airbus A350-900LH |
| 2 April 2025 – 24 October 2025 | ||||
| SQ482 | Singapore – Johannesburg | Tuesdays,
Wednesdays, Fridays |
1355hrs – 1835hrs | Airbus A350-900LH |
| SQ481 | Johannesburg – Singapore | Tuesdays,
Wednesdays, Fridays |
1950hrs – 1215hrs (+1) | Airbus A350-900LH |
MUMBAI
From 28 July 2025 to 31 August 2025, the Boeing 777-300ER will replace the Airbus A380-800 on the daily SQ424 and SQ423 service between Singapore and Mumbai.
| 28 July 2025 – 31 August 2025 | ||||
| SQ424 | Singapore – Mumbai | Daily | 1900hrs – 2210hrs | Boeing 777-300ER |
| SQ423 | Mumbai – Singapore | Daily | 2340hrs – 0740hrs (+1) | Boeing 777-300ER |
