Cheap flights from Portsmouth to South Island from £1,884
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
Find 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 22 October 2025.
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 22 October 2025.
Cheap 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 22 October 2025.
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
SouthamptonChristchurch
SOU - CHC
SOUCHC
Southampton Eastleigh
Sat 6/12
09:30-09:55
3 stops35h 25m
Christchurch
Sat 13/12
17:00-15:35
3 stops35h 35m
SouthamptonChristchurch
SOU - CHC
SOUCHC
Southampton Eastleigh
Thu 4/12
14:35-14:00
3 stops34h 25m
Christchurch
Thu 11/12
18:20-12:05
3 stops54h 45m
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
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, March is the cheapest month in which you can book a flight from Portsmouth to South Island (average of £762). Flying from Portsmouth to South Island in June is currently the most expensive (average of £1,079). 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 EDG?
Find hourly flight availability from Portsmouth to South Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 October 2025.
It’s optimal to fly from Portsmouth to South Island at midday. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight in the afternoon.
What is the cheapest day to fly from Portsmouth to South Island?
Use this chart to determine the cheapest time to fly return from Portsmouth to South Island. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their Portsmouth to South Island flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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.
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Alternative routes for Portsmouth to South Island
See prices for flight routes from nearby airports that may be better suited for you.
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 22 October 2025.
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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.