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Cheap flights from Portsmouth to South Island from £1,461

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CHC
20 Feb — 27 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to South Island

Enter your travel dates to find the best prices.

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 21 January 2026.

Mon 4/509:10
SOU
-
CHC
3 stops50h 55m
Multiple Airlines
Fri 5/608:20
CHC
-
SOU
3 stops70h 10m
Multiple Airlines
Deal found 18/1£1,461
Sat 2/510:15
SOU
-
CHC
3 stops39h 40m
Multiple Airlines
Thu 4/617:45
CHC
-
SOU
3 stops53h 00m
Multiple Airlines
Deal found 18/1£1,588
Mon 23/320:50
SOU
-
ZQN
3 stops54h 50m
Multiple Airlines
Thu 23/409:05
ZQN
-
SOU
3 stops40h 40m
Multiple Airlines
Deal found 19/1£2,228

Find flight deals from Portsmouth to South Island

Keep the following information in mind while searching for Portsmouth to South Island flight deals. Data was last updated 21 January 2026.

Round-trip from

£2,228

Popular in

July

Cheapest in

November

Average price

£1,338
23/3-23/4
  • 23/3-23/4
  • 6 total stops
  • 95h 30m total
  • Portsmouth to South Island
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£39 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to South Island 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 21 January 2026.
Use the filters below to find and compare flights from Portsmouth to South Island that are best for you.

Fly from

Portsmouth

Fly to

South Island

Route

Depart

Return

Price

SouthamptonChristchurch

SOU - CHC

SOUCHC

Southampton Eastleigh

Mon 4/5

09:10-23:05

3 stops50h 55m

Christchurch

Fri 5/6

08:20-19:30

3 stops70h 10m

£1,461

SouthamptonChristchurch

SOU - CHC

SOUCHC

Southampton Eastleigh

Sat 2/5

10:15-12:55

3 stops39h 40m

Christchurch

Thu 4/6

17:45-11:45

3 stops53h 00m

£1,588

SouthamptonQueenstown

SOU - ZQN

SOUZQN

Southampton Eastleigh

Mon 23/3

20:50-16:40

3 stops54h 50m

Queenstown Intl

Thu 23/4

09:05-14:45

3 stops40h 40m

£2,228

Flights are sorted by cheapest return flights first.

Deals found on 18/1

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.
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

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

Currently, December is the cheapest month in which you can book a flight from Portsmouth to South Island (average of £865). Flying from Portsmouth to South Island in October is currently the most expensive (average of £1,076). 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.

Related info for your journey

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

  • 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.

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

    Currently, December is the cheapest month in which you can book a flight from Portsmouth to South Island (average of £865). Flying from Portsmouth to South Island in October is currently the most expensive (average of £1,076). 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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Top 10 airlines flying from Portsmouth to South Island

Discover the top 10 airlines that operate flights from Portsmouth to South Island. 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 21 January 2026.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£832Average£1,118FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air New ZealandCheapest£887Average£1,473FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Etihad AirwaysCheapest£894Average£1,111FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
LufthansaCheapest£931Average£1,400FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£1,043Average£1,307FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Cathay PacificCheapest£1,051Average£1,314FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
EmiratesCheapest£1,075Average£1,466FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Singapore AirlinesCheapest£1,095Average£1,585FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest£1,153Average£1,345FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Qatar AirwaysCheapest£1,179Average£1,440FlexibilityNo cancel feeOn-time68%
Search Qatar Airways 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 South Island?

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.

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

Cheapflights simply makes it quick and affordable to book flights from Portsmouth to South Island 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 South Island with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Portsmouth to South Island flexibly with Cheapflights today.

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

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

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