$1,352+ Cheap flights to Portsmouth

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
26 Apr — 3 May1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Portsmouth
Explore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on 27 March 2026.

Sat 9/520:50
SYD
-
SOU
2 stops44h 50m
Multiple Airlines
Sat 16/509:20
SOU
-
SYD
2 stops35h 50m
Multiple Airlines
Deal found 25/3$1,371
Mon 11/520:50
SYD
-
SOU
2 stops44h 15m
Multiple Airlines
Mon 18/517:20
SOU
-
SYD
2 stops27h 50m
Multiple Airlines
Deal found 26/3$1,677
Fri 24/420:45
SYD
-
SOU
2 stops31h 45m
Multiple Airlines
Fri 1/520:00
SOU
-
SYD
2 stops36h 10m
Multiple Airlines
Deal found 26/3$2,432
Fri 24/420:45
SYD
-
SOU
2 stops31h 45m
Qatar Airways
Fri 1/520:00
SOU
-
SYD
2 stops60h 10m
Qatar Airways
Deal found 26/3$2,484
Wed 13/520:45
SYD
-
SOU
2 stops31h 45m
Qatar Airways
Sun 17/520:00
SOU
-
SYD
2 stops36h 10m
Qatar Airways
Deal found 26/3$2,500
Thu 14/520:45
SYD
-
SOU
2 stops31h 45m
Qatar Airways
Sun 17/520:00
SOU
-
SYD
2 stops36h 10m
Qatar Airways
Deal found 25/3$2,516
Wed 29/420:45
SYD
-
SOU
2 stops31h 45m
Qatar Airways
Wed 13/520:00
SOU
-
SYD
2 stops36h 10m
Qatar Airways
Deal found 25/3$2,519
Sun 3/520:45
SYD
-
SOU
2 stops55h 45m
Qatar Airways
Mon 18/520:00
SOU
-
SYD
2 stops36h 10m
Qatar Airways
Deal found 25/3$2,523
Fri 1/520:45
SYD
-
SOU
2 stops31h 45m
Qatar Airways
Thu 14/520:00
SOU
-
SYD
2 stops36h 10m
Qatar Airways
Deal found 25/3$2,563
Sun 3/520:45
SYD
-
SOU
2 stops55h 45m
Qatar Airways
Sat 16/520:00
SOU
-
SYD
2 stops36h 10m
Qatar Airways
Deal found 25/3$2,567
Sat 2/520:45
SYD
-
SOU
2 stops31h 45m
Multiple Airlines
Sat 16/520:00
SOU
-
SYD
2 stops36h 10m
Multiple Airlines
Deal found 25/3$2,590

Find flight deals to Portsmouth

Find the latest flights to Portsmouth in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 27 March 2026.

Return from

$1,346

One-way from

$1,352

Popular in

December

Cheapest in

February

Average price

$1,697
Etihad Airways
  • Etihad Airways
  • 16/5-5/6
  • 2 total stops
  • 49h 15m total
  • Sydney to London
Search Deals
7/5
  • 7/5
  • 2 total stops
  • 31h 45m total
  • Sydney to Portsmouth
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($183 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($54 potential savings vs. average return price).
Search Deals
Average for return flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Locate flights to Portsmouth that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 27 March 2026.
Use the filters below to find and compare flights to Portsmouth that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneySouthampton

SYD - SOU

SYDSOU

Sydney Kingsford Smith

Mon 11/5

20:50-08:05

2 stops44h 15m

Southampton Eastleigh

Mon 18/5

17:20-06:10

2 stops27h 50m

$1,677

SydneySouthampton

SYD - SOU

SYDSOU

Sydney Kingsford Smith

Fri 24/4

20:45-19:30

2 stops31h 45m

Southampton Eastleigh

Fri 1/5

20:00-17:10

2 stops60h 10m

$2,484
Fastest return journey

SydneySouthampton

SYD - SOU

SYDSOU

Sydney Kingsford Smith

Wed 13/5

20:45-19:30

2 stops31h 45m

Southampton Eastleigh

Sun 17/5

20:00-17:10

2 stops36h 10m

$2,500

SydneySouthampton

SYD - SOU

SYDSOU

Sydney Kingsford Smith

Thu 14/5

20:45-19:30

2 stops31h 45m

Southampton Eastleigh

Sun 17/5

20:00-17:10

2 stops36h 10m

$2,516

SydneySouthampton

SYD - SOU

SYDSOU

Sydney Kingsford Smith

Sun 24/5

20:45-19:30

2 stops31h 45m

Southampton Eastleigh

Wed 10/6

20:00-17:10

2 stops36h 10m

$2,786

SydneySouthampton

SYD - SOU

SYDSOU

Sydney Kingsford Smith

Sun 24/5

20:45-19:30

2 stops55h 45m

Southampton Eastleigh

Sun 14/6

09:10-06:10

2 stops36h 00m

$2,815

SydneySouthampton

SYD - SOU

SYDSOU

Sydney Kingsford Smith

Wed 22/4

20:45-19:30

2 stops31h 45m

Southampton Eastleigh

Fri 26/6

20:00-06:10

2 stops49h 10m

$2,850

SydneySouthampton

SYD - SOU

SYDSOU

Sydney Kingsford Smith

Wed 3/6

14:50-19:30

2 stops37h 40m

Southampton Eastleigh

Sun 5/7

20:00-06:10

2 stops49h 10m

$2,862

SydneySouthampton

SYD - SOU

SYDSOU

Sydney Kingsford Smith

Sun 30/8

20:45-19:30

2 stops55h 45m

Southampton Eastleigh

Mon 14/9

09:10-06:10

2 stops36h 00m

$2,969
Cheapest one-way
Fastest single journey

SydneySouthampton

SYD - SOU

SYDSOU

Sydney Kingsford Smith

Tue 5/5

20:45-19:30

2 stops31h 45m

$1,363

Flights are sorted by cheapest return flights first.

Deals found on 26/3

Showing 1-10 of 17 resultsSorted by cheapest first
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Best time to book a flight to Portsmouth

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

How long is the flight to Portsmouth?

On average, a flight from Sydney to Portsmouth takes 27 hours 55 minutes. Flights to Portsmouth from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.

Rainfall in Portsmouth by month

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

In terms of precipitation, rainfall in Portsmouth ranges from 25.0 - 76.0 mm per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Portsmouth when rainfall is around 25.0 mm.

Temperature in Portsmouth by month

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

If weather is an important factor for your trip to Portsmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

FAQs about flying to Portsmouth

  • Can I find cheaper flights to Portsmouth if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Portsmouth on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Portsmouth?

    Based on reviews from Cheapflights users, Hainan Airlines is rated the highest out of the airlines that fly to Portsmouth.

  • How much is a return flight to Portsmouth?

    A return flight to Portsmouth will typically cost around $277, however they can be found for as little as $164.

  • Where does the fastest flight to Portsmouth depart from?

    For those looking to save time traveling to Portsmouth, Perth offers the quickest one-way flight (27 hours 45 minutes).

  • Does London Heathrow have car hire?

    Yes. Those touching down at London Heathrow can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to London Heathrow?

    Yes. London Heathrow has hotels nearby for those requiring accommodations. Aeropartment & Aerotel, London Heathrow Airport, Terminal 4, Ev Stations & Cheap Parking On Site! is the closest property to London Heathrow (0.0 km away from London Heathrow).

See more FAQs

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How does Cheapflights help users find flights to Portsmouth?

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

Cheapflights helps you find that perfect flight to 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 to Portsmouth with no change fees?

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

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Portsmouth today and book when you’re ready!

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