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Cheap flights from Portsmouth to Singapore from £725

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SIN
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Portsmouth to Singapore

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Singapore
Explore the most affordable flight options available from Portsmouth to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 November 2025.

Fri 21/1120:10SOU - SIN
2 stops28h 35mQatar Airways
Thu 27/1103:15SIN - SOU
2 stops24h 25mQatar Airways
Deal found 13/11£1,090
Sun 28/1209:30SOU - SIN
2 stops27h 05mKLM
Sun 4/117:25SIN - SOU
2 stops23h 25mKLM
Deal found 13/11£1,286
Fri 21/1120:10SOU - SIN
2 stops34h 45mMultiple Airlines
Fri 28/1120:15SIN - SOU
2 stops20h 45mMultiple Airlines
Deal found 13/11£1,356
Sun 28/1209:30SOU - SIN
2 stops33h 50mMultiple Airlines
Sun 4/114:40SIN - SOU
3 stops36h 40mMultiple Airlines
Deal found 13/11£1,394
Sat 27/1209:30SOU - SIN
2 stops27h 45mQatar Airways
Sat 3/120:15SIN - SOU
2 stops31h 25mQatar Airways
Deal found 12/11£4,906

Cheap flight deals from Portsmouth to Singapore

Keep the following information in mind while searching for Portsmouth to Singapore flight deals. Data was last updated 14 November 2025.

Round-trip from

£820

One-way from

£725

Popular in

December

Cheapest in

May

Average price

£557
KLM
  • KLM
  • 12/12-27/12
  • 3 total stops
  • 41h 20m total
  • Portsmouth to Singapore
Search Deals
Qatar Airways
  • Qatar Airways
  • 15/1
  • 2 total stops
  • 28h 35m total
  • Portsmouth to Singapore
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£27 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 November 2025.
Use the filters below to find and compare flights from Portsmouth to Singapore that are best for you.

Fly from

Portsmouth

Fly to

Singapore

Route

Depart

Return

Price

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Sun 28/12

09:30-20:35

2 stops27h 05m

Singapore Changi

Sun 4/1

17:25-08:50

2 stops23h 25m

£1,286

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Sun 28/12

09:30-03:20

2 stops33h 50m

Singapore Changi

Sun 4/1

14:40-19:20

3 stops36h 40m

£1,394

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Sat 27/12

09:30-21:15

2 stops27h 45m

Singapore Changi

Fri 2/1

03:15-19:40

2 stops48h 25m

£4,911

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Sat 27/12

09:25-16:15

1 stop22h 50m

Singapore Changi

Fri 2/1

01:40-17:00

1 stop23h 20m

£5,300

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Thu 15/1

20:10-08:45

2 stops28h 35m

£725

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Wed 14/1

12:25-08:45

2 stops36h 20m

£731

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Fri 16/1

20:10-08:45

2 stops28h 35m

£751

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Sun 18/1

09:30-14:55

2 stops21h 25m

£751

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Sat 17/1

09:30-21:15

2 stops27h 45m

£751

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Best time to book a flight from Portsmouth to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Portsmouth with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Singapore

What is the cheapest month to book a flight from Portsmouth to Singapore?

Currently, May is the cheapest month in which you can book a flight from Portsmouth to Singapore (average of £397). Flying from Portsmouth to Singapore in July is currently the most expensive (average of £524). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from P0R to SIN?

Find hourly flight availability from Portsmouth to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 November 2025.

When flying from Portsmouth to Singapore, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 41% versus a flight in the evening.

What is the cheapest day to fly from Portsmouth to Singapore?

Use this chart to determine the cheapest time to fly return from Portsmouth to Singapore. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Portsmouth to Singapore flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portsmouth to Singapore

Explore weekly flight availability from Portsmouth to Singapore. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 14 November 2025.

The most flights from P0R to SIN are scheduled on a Monday (35 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (33 on average).

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Singapore from Portsmouth?

    Most people fly into Singapore Changi (SIN) if they book a flight to Singapore from Portsmouth. On average, Changi has 0 inbound flights from Portsmouth per day from 24 airlines. Singapore Changi is conveniently located just 10.5 mi from Singapore’s city center.

  • How long is the flight from Portsmouth to Singapore?

    Departing from Portsmouth to Singapore will take you 27h 05m. Portsmouth and Singapore are separated by a distance of 6803 mi.

  • What are the most reliable airlines from Portsmouth to Singapore?

    The top 3 most reliable airlines when flying from Portsmouth to Singapore are Croatia Airlines (92%), Air Canada (87%) and Garuda Indonesia (85%).

  • What are the cheapest flights from Portsmouth to Singapore?

    While on average a flight from Portsmouth to Singapore is generally £4,078, our data shows the cheapest flight currently is £377. When looking at the most popular route, (Southampton Eastleigh - Singapore Changi), you can expect to pay £774 for that flight.

  • Can I find deals for flights from Portsmouth to Singapore that include hotel bookings?

    Yes. In addition to deals on Portsmouth to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Singapore.

  • Can I find deals for business class flights from Portsmouth to Singapore?

    Yes. Cheapflights offers flight deals from Portsmouth to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portsmouth to Singapore?

    Currently, May is the cheapest month in which you can book a flight from Portsmouth to Singapore (average of £397). Flying from Portsmouth to Singapore in July is currently the most expensive (average of £524). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Portsmouth to Singapore

Discover the top 10 airlines that operate flights from Portsmouth to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest£336Average£578FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Shenzhen AirlinesCheapest£368Average£419FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Air ChinaCheapest£378Average£453FlexibilityNo cancel feeOn-time67%
Search Air China flights
Hainan AirlinesCheapest£385Average£459FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
China EasternCheapest£395Average£515FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
KLMCheapest£425Average£819FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£425Average£599FlexibilityNo cancel feeOn-time77%
Search Air France flights
Royal Brunei AirlinesCheapest£436Average£509FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
LufthansaCheapest£439Average£615FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest£441Average£602FlexibilityNo cancel feeOn-time79%
Search SWISS flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Portsmouth to Singapore?

Cheapflights makes it easy to find Portsmouth to Singapore flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Singapore?

Cheapflights helps you find that perfect flight to Singapore from Portsmouth by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Portsmouth to Singapore with no change fees?

Yes, we can. To see specific flights from Portsmouth to Singapore with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Portsmouth to Singapore become cheaper?

Yes, Cheapflights offers price alerts on Portsmouth to Singapore flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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