In terms of precipitation, rainfall in South Island ranges from 40.0 - 60.0 inches per month. May is typically the wettest month, when rainfall can reach 60.0 mm. February is typically the driest time to visit South Island when rainfall is around 40.0 mm.

If weather is an important factor for your trip to South Island, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 6.0 C).

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

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

Can I find deals for flights from Portsmouth to South Island that include hotel bookings?

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

How can I find direct flights from Portsmouth to South Island?

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

Can I find deals for business class flights from Portsmouth to South Island?

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

£1,402+ Cheap Flights from Portsmouth to South Island

Cheap flight deals from Portsmouth to South Island

Enter your travel dates to find the best prices.

Cheapest

Best

Cheapest flights from Portsmouth to South Island
Explore the most affordable flight options available from Portsmouth to South Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Mon 2/1119:55 -

3 stops53h 05m

Mon 9/1118:20 -

3 stops51h 05m

Deal found 18/9£1,402

Mon 2/1106:50 -

3 stops43h 45m

Mon 9/1116:30 -

3 stops41h 25m

Deal found 18/9£1,645

Wed 4/1117:35 -

2 stops32h 50m

Sun 22/1117:05 -

2 stops37h 00m

Deal found 15/9£7,429

Find flight deals from Portsmouth to South Island

Round-trip from	£1,402
Popular in	July
Cheapest in	May
Average price	£1,316

2/11-9/11
6 total stops
104h 10m total
Portsmouth to South Island

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (£102 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£19 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portsmouth to South Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonChristchurch

SOU Southampton Eastleigh - CHC Christchurch

SOUCHC

Southampton Eastleigh

Mon 2/11

19:55-14:00

3 stops53h 05m

Christchurch

Mon 9/11

18:20-08:25

3 stops51h 05m

£1,402

SouthamptonQueenstown

SOU Southampton Eastleigh - ZQN Queenstown Intl

SOUZQN

Southampton Eastleigh

Mon 2/11

06:50-15:35

3 stops43h 45m

Queenstown Intl

Mon 9/11

16:30-20:55

3 stops41h 25m

£1,645

Fastest return journey

SouthamptonChristchurch

SOU Southampton Eastleigh - CHC Christchurch

SOUCHC

Southampton Eastleigh

Wed 4/11

17:35-15:25

2 stops32h 50m

Christchurch

Sun 22/11

17:05-17:05

2 stops37h 00m

£7,440

Flights are sorted by cheapest return flights first.

Deals found on 18/9

Sorted by cheapest first

Best time to book a flight from Portsmouth to South Island

Have a flexible travel schedule? Discover the best time to fly to South Island from Portsmouth with our price prediction graph.

SOU-CHC

SOU-ZQN

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 South Island

P0R-zzEDG

SOU-CHC

SOU-ZQN

No data available for this route at this time. Please check back soon.

Related info for your journey

Can I find deals for flights from Portsmouth to South Island that include hotel bookings?
Yes. In addition to deals on Portsmouth to South Island flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portsmouth to South Island?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to South Island.
Can I find deals for business class flights from Portsmouth to South Island?
Yes. Cheapflights offers flight deals from Portsmouth to South Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portsmouth to South Island

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Top 10 airlines flying from Portsmouth to South Island

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest£436	Average£1,231	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
China Southern	Cheapest£771	Average£1,116	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
Etihad Airways	Cheapest£967	Average£1,119	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
Emirates	Cheapest£1,082	Average£1,357	FlexibilityNo cancel fee	On-time75%	Search Emirates flights
United Airlines	Cheapest£1,100	Average£1,308	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air New Zealand	Cheapest£1,126	Average£1,552	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
Qantas Airways	Cheapest£1,146	Average£1,446	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Cathay Pacific	Cheapest£1,162	Average£1,741	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights
Singapore Airlines	Cheapest£1,196	Average£1,724	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
American Airlines	Cheapest£1,205	Average£1,208	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

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When you search for this flight from Portsmouth to South Island, 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.

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

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Cheap flights from Portsmouth to South Island from £1,402

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to South Island

Cheapest flights from Portsmouth to South IslandExplore the most affordable flight options available from Portsmouth to South Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Explore the most affordable flight options available from Portsmouth to South Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Best flights from Portsmouth to South IslandDiscover carefully curated flight deals from Portsmouth to South Island that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Discover carefully curated flight deals from Portsmouth to South Island that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Find flight deals from Portsmouth to South Island

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Portsmouth to South Island that are best for you.

Best time to book a flight from Portsmouth to South Island

Have a flexible travel schedule? Discover the best time to fly to South Island from Portsmouth with our price prediction graph.

Cheapflights Insights

Related info for your journey

Can I find deals for flights from Portsmouth to South Island that include hotel bookings?

How can I find direct flights from Portsmouth to South Island?

Can I find deals for business class flights from Portsmouth to South Island?

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.

Alternative routes for Portsmouth to South Island

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to South Island by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Portsmouth to South Island by cabin class

Find flights from Portsmouth to South Island, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Portsmouth and South Island flights

Browse other Portsmouth and South Island flight options. Last updated on 18 September 2026.

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Portsmouth to South Island flights

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Top 10 airlines flying from Portsmouth to South Island

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How does Cheapflights help users find flights from Portsmouth to South Island?

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

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

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

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Cheapest flights from Portsmouth to South Island
Explore the most affordable flight options available from Portsmouth to South Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Best flights from Portsmouth to South Island
Discover carefully curated flight deals from Portsmouth to South Island that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.