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Cheap flights from Portsmouth to Singapore from £689

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SIN
18 Jun — 25 Jun1
1 adult

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 13 June 2025.

Round-trip from

£799

One-way from

£689

Popular in

December

Cheapest in

May

Average price

£559
9/7-16/7
  • 9/7-16/7
  • 4 total stops
  • 60h 00m total
  • Portsmouth to Singapore
Search Deals
6/8
  • 6/8
  • 2 total stops
  • 23h 35m total
  • Portsmouth to Singapore
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£26 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Portsmouth to Singapore

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 13 June 2025.

Wed 9/720:00SOU - SIN
2 stops30h 40mMultiple Airlines
Wed 16/721:10SIN - SOU
2 stops29h 20mMultiple Airlines
Deal found 11/6£799
Wed 9/709:20SOU - SIN
1 stop23h 10mKLM
Tue 15/700:40SIN - SOU
1 stop24h 10mKLM
Deal found 11/6£1,073
Mon 18/809:40SOU - SIN
2 stops40h 20mQatar Airways
Sun 24/818:45SIN - SOU
2 stops31h 45mQatar Airways
Deal found 11/6£1,078

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 13 June 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

Wed 9/7

20:00-09:40

2 stops30h 40m

Singapore Changi

Wed 16/7

21:10-19:30

2 stops29h 20m

£799

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Wed 9/7

09:20-15:30

1 stop23h 10m

Singapore Changi

Tue 15/7

00:40-17:50

1 stop24h 10m

£1,073

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Mon 18/8

09:40-09:00

2 stops40h 20m

Singapore Changi

Sun 24/8

18:45-19:30

2 stops31h 45m

£1,078

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Wed 6/8

09:10-15:45

2 stops23h 35m

£689

SouthamptonSingapore

SOU - SIN

SOUSIN

Southampton Eastleigh

Mon 4/8

09:40-21:00

2 stops28h 20m

£693

Flights are sorted by cheapest return flights first.

Deals found on 11/6

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 £717). Flying from Portsmouth to Singapore in December is currently the most expensive (average of £1,115). 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 SG?

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 13 June 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Singapore as you normally would.

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 13 June 2025.

The most flights from P0R to SG0 are scheduled on a Monday (38 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (37 on average).

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated 13 June 2025.
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Qatar Airways
7.4
Good
3,584 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Crew

8.4

Overall

7.8

Comfort

7.7

Boarding

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

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 are the most reliable airlines from Portsmouth to Singapore?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Portsmouth to Singapore on time: American Airlines (72%), Iberia (72%), British Airways (72%).

  • What are the cheapest flights from Portsmouth to Singapore?

    Looking at all options, your cheapest flight can be booked for £350. While the most popular route (Southampton Eastleigh - Singapore Changi) can be booked for £814 on average our data indicates £3,724 when flying from Portsmouth to Singapore.

  • 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 £717). Flying from Portsmouth to Singapore in December is currently the most expensive (average of £1,115). 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

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Alternative routes for Portsmouth to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Shenzhen AirlinesCheapest£353Average£405FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Air ChinaCheapest£367Average£449FlexibilityNo cancel feeOn-time67%
Search Air China flights
Hainan AirlinesCheapest£373Average£398FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Air IndiaCheapest£376Average£598FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
China EasternCheapest£381Average£481FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£394Average£434FlexibilityNo cancel feeOn-time69%
Search China Southern flights
KLMCheapest£412Average£850FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£412Average£543FlexibilityNo cancel feeOn-time77%
Search Air France flights
Royal Brunei AirlinesCheapest£422Average£489FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
FinnairCheapest£453Average£669FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

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

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

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

Need flexible booking options for your flight to Singapore from Portsmouth? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Not ready to book yet? You can track prices for flights from Portsmouth to Singapore on Cheapflights with our Price Alert feature and get notified when better prices are available.

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