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Cheap flights from Portsmouth to Australia from £699

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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
11 Aug — 18 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Australia

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Australia
Explore the most affordable flight options available from Portsmouth to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 July 2026.

Tue 1/909:05
SOU
-
SYD
2 stops35h 05m
KLM
Wed 30/909:50
SYD
-
SOU
2 stops55h 45m
KLM
Deal found 8/7£1,128
Sat 22/820:00
SOU
-
SYD
2 stops49h 10m
Multiple Airlines
Sat 29/820:50
SYD
-
SOU
2 stops44h 50m
Multiple Airlines
Deal found 10/7£1,241
Fri 6/1109:20
SOU
-
PER
3 stops34h 55m
Multiple Airlines
Sun 22/1107:25
PER
-
SOU
3 stops44h 00m
Multiple Airlines
Deal found 10/7£1,254
Wed 2/909:20
SOU
-
MEL
2 stops27h 45m
Multiple Airlines
Sat 26/922:45
MEL
-
SOU
2 stops29h 45m
Multiple Airlines
Deal found 9/7£1,284
Fri 4/909:20
SOU
-
MEL
2 stops27h 45m
Multiple Airlines
Sat 26/922:45
MEL
-
SOU
2 stops29h 45m
Multiple Airlines
Deal found 9/7£1,310
Thu 6/817:20
SOU
-
MEL
2 stops27h 10m
Multiple Airlines
Wed 12/817:20
MEL
-
SOU
2 stops33h 25m
Multiple Airlines
Deal found 11/7£1,340
Mon 24/812:20
SOU
-
ADL
2 stops42h 10m
Multiple Airlines
Mon 31/822:00
ADL
-
SOU
2 stops28h 15m
Multiple Airlines
Deal found 10/7£1,357
Sat 10/1009:20
SOU
-
PER
3 stops31h 15m
Multiple Airlines
Sat 24/1005:35
PER
-
SOU
3 stops45h 05m
Multiple Airlines
Deal found 12/7£1,363
Sat 22/814:55
SOU
-
ADL
2 stops39h 35m
Multiple Airlines
Sat 29/822:00
ADL
-
SOU
2 stops49h 00m
Multiple Airlines
Deal found 8/7£1,463
Tue 14/714:15
SOU
-
MEL
2 stops33h 45m
Multiple Airlines
Tue 21/717:20
MEL
-
SOU
2 stops28h 35m
Multiple Airlines
Deal found 9/7£1,469
Wed 26/820:00
SOU
-
ADL
2 stops34h 30m
Multiple Airlines
Sat 19/922:00
ADL
-
SOU
2 stops30h 50m
Multiple Airlines
Deal found 8/7£1,472
Fri 9/1009:20
SOU
-
MEL
2 stops46h 30m
Multiple Airlines
Fri 30/1023:40
MEL
-
SOU
2 stops27h 55m
Multiple Airlines
Deal found 10/7£1,479

Find flight deals from Portsmouth to Australia

Keep the following information in mind while searching for Portsmouth to Australia flight deals. Data was last updated 12 July 2026.

Round-trip from

£1,128

One-way from

£699

Popular in

December

Cheapest in

May

Average price

£1,277
KLM
  • KLM
  • 1/9-30/9
  • 4 total stops
  • 90h 50m total
  • Portsmouth to Australia
Search Deals
Qatar Airways
  • Qatar Airways
  • 11/11
  • 2 total stops
  • 34h 30m total
  • Portsmouth to Australia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Australia 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 12 July 2026.
Use the filters below to find and compare flights from Portsmouth to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonSydney

SOU - SYD

SOUSYD

Southampton Eastleigh

Tue 1/9

09:05-05:10

2 stops35h 05m

Sydney Kingsford Smith

Wed 30/9

09:50-08:35

2 stops55h 45m

£1,128

SouthamptonSydney

SOU - SYD

SOUSYD

Southampton Eastleigh

Sat 22/8

20:00-06:10

2 stops49h 10m

Sydney Kingsford Smith

Sat 29/8

20:50-08:40

2 stops44h 50m

£1,241

SouthamptonMelbourne

SOU - MEL

SOUMEL

Southampton Eastleigh

Fri 4/9

09:20-22:05

2 stops27h 45m

Melbourne

Fri 25/9

22:45-19:30

2 stops29h 45m

£1,310

SouthamptonMelbourne

SOU - MEL

SOUMEL

Southampton Eastleigh

Thu 6/8

17:20-05:30

2 stops27h 10m

Melbourne

Wed 12/8

17:20-17:45

2 stops33h 25m

£1,340

SouthamptonAdelaide

SOU - ADL

SOUADL

Southampton Eastleigh

Mon 24/8

12:20-15:00

2 stops42h 10m

Adelaide

Mon 31/8

22:00-17:45

2 stops28h 15m

£1,357
Fastest return journey

SouthamptonMelbourne

SOU - MEL

SOUMEL

Southampton Eastleigh

Thu 7/1

17:05-05:45

2 stops25h 40m

Melbourne

Thu 28/1

23:40-16:35

2 stops27h 55m

£1,383

SouthamptonPerth

SOU - PER

SOUPER

Southampton Eastleigh

Fri 6/11

09:20-04:15

3 stops34h 55m

Perth

Sun 22/11

22:45-17:00

2 stops26h 15m

£1,385

SouthamptonMelbourne

SOU - MEL

SOUMEL

Southampton Eastleigh

Wed 6/1

09:20-05:45

2 stops33h 25m

Melbourne

Wed 27/1

23:40-16:35

2 stops27h 55m

£1,392

SouthamptonAdelaide

SOU - ADL

SOUADL

Southampton Eastleigh

Wed 26/8

20:00-15:00

2 stops34h 30m

Adelaide

Sat 19/9

22:00-20:20

2 stops30h 50m

£1,472

SouthamptonMelbourne

SOU - MEL

SOUMEL

Southampton Eastleigh

Fri 9/10

09:20-17:50

2 stops46h 30m

Melbourne

Fri 30/10

23:40-16:35

2 stops27h 55m

£1,479

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 55 resultsSorted by cheapest first
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Best time to book a flight from Portsmouth to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia 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 Australia

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

Find hourly flight availability from Portsmouth to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 July 2026.

When flying from Portsmouth to Australia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Portsmouth to Australia

Explore weekly flight availability from Portsmouth to Australia. 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 12 July 2026.

The most flights from P0R to AU0 are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Related info for your journey

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

  • How long is the flight from Portsmouth to Australia?

    Departing from Portsmouth to Australia will take you 35h 05m. Airlines will cover a distance of 10620 mi.

  • What are the most popular routes from Portsmouth to Australia?

    The most popular flight routes from Portsmouth to Australia are Southampton Eastleigh - Sydney Kingsford Smith, Southampton Eastleigh - Perth and Southampton Eastleigh - Brisbane.

  • What are the cheapest flights from Portsmouth to Australia?

    On average you can expect to pay £2,908 for a flight from Portsmouth to Australia. The cheapest flight overall is £976 while the most popular route, (Southampton Eastleigh - Sydney Kingsford Smith) is currently priced at £1,128.

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

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

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

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

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

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

See more FAQs

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Alternative routes for Portsmouth to Australia

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 Australia

Discover the top 10 airlines that operate flights from Portsmouth to Australia. 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 12 July 2026.
AirlineCheapestAverageFlexibilityOn-time
AirAsiaCheapest£143Average£199FlexibilityNo cancel feeOn-time66%
Search AirAsia flights
Hainan AirlinesCheapest£204Average£700FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
LufthansaCheapest£492Average£982FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Shenzhen AirlinesCheapest£563Average£1,140FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Virgin AtlanticCheapest£588Average£1,292FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
SWISSCheapest£656Average£1,211FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Royal Brunei AirlinesCheapest£675Average£893FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
Asiana AirlinesCheapest£679Average£1,522FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
China AirlinesCheapest£734Average£890FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Vietnam AirlinesCheapest£839Average£1,291FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from Portsmouth to Australia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Portsmouth to Australia by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to Australia 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 Australia become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Australia from Portsmouth today and book when prices fit your budget.

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