Cheap flights from Portsmouth to Osaka Kansai Intl Airport from £400
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 28/11. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Portsmouth to Kansai Intl
Keep the following information in mind while searching for Portsmouth to Kansai Intl flight deals. Data was last updated 15 October 2025.
Find flight deals from Portsmouth to Kansai Intl
Cheapest flights from Portsmouth to Kansai IntlExplore the most affordable flight options available from Portsmouth to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.
Explore the most affordable flight options available from Portsmouth to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Portsmouth to Osaka Kansai Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SouthamptonOsaka
SOU - KIX
SOUKIX
Southampton Eastleigh
Fri 28/11
13:30-12:35
2 stops38h 05m
Osaka Kansai Intl
Fri 5/12
14:35-12:05
2 stops30h 30m
SouthamptonOsaka
SOU - KIX
SOUKIX
Southampton Eastleigh
Thu 27/11
18:05-21:00
2 stops41h 55m
Osaka Kansai Intl
Thu 4/12
16:30-08:50
2 stops49h 20m
SouthamptonOsaka
SOU - KIX
SOUKIX
Southampton Eastleigh
Sat 6/12
09:25-21:00
2 stops26h 35m
Osaka Kansai Intl
Sat 13/12
09:20-08:50
2 stops32h 30m
SouthamptonOsaka
SOU - KIX
SOUKIX
Southampton Eastleigh
Sun 7/12
18:05-11:20
1 stop32h 15m
Osaka Kansai Intl
Sun 14/12
13:00-08:10
1 stop28h 10m
SouthamptonOsaka
SOU - KIX
SOUKIX
Southampton Eastleigh
Fri 5/12
17:30-11:20
1 stop32h 50m
Osaka Kansai Intl
Sun 14/12
13:00-08:10
1 stop28h 10m
SouthamptonOsaka
SOU - KIX
SOUKIX
Southampton Eastleigh
Sat 6/12
09:25-11:20
1 stop16h 55m
Osaka Kansai Intl
Sun 14/12
13:00-08:10
1 stop28h 10m
SouthamptonOsaka
SOU - KIX
SOUKIX
Southampton Eastleigh
Thu 27/11
18:05-10:50
2 stops31h 45m
Osaka Kansai Intl
Thu 4/12
13:00-17:00
1 stop37h 00m
SouthamptonOsaka
SOU - KIX
SOUKIX
Southampton Eastleigh
Fri 28/11
08:10-16:30
3 stops47h 20m
SouthamptonOsaka
SOU - KIX
SOUKIX
Southampton Eastleigh
Wed 1/4
09:10-08:40
3 stops39h 30m
Best time to book a flight from Portsmouth to Kansai Intl
Have a flexible travel schedule? Discover the best time to fly to Kansai Intl from Portsmouth with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Portsmouth to Osaka Kansai Intl Airport
What is the cheapest month to book a flight from Portsmouth to Osaka Kansai Intl Airport?
Currently, March is the cheapest month in which you can book a flight from Portsmouth to Osaka Kansai Intl Airport (average of £310). Flying from Portsmouth to Osaka Kansai Intl Airport in July is currently the most expensive (average of £727). 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 KIX?
Find hourly flight availability from Portsmouth to Kansai Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 October 2025.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 19% on flights from Portsmouth to Osaka Kansai Intl Airport by exploring options for tickets in the evening.
What is the cheapest day to fly from Portsmouth to Osaka Kansai Intl Airport?
Use this chart to determine the cheapest time to fly return from Portsmouth to Kansai Intl. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their Portsmouth to Osaka Kansai Intl Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday at midday 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 Kansai Intl. 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 Kansai Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Portsmouth to Kansai Intl
Discover the top 10 airlines that operate flights from Portsmouth to Kansai Intl. 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 15 October 2025.
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How does Cheapflights help users find flights from Portsmouth to Kansai Intl?
Deals for Portsmouth to Kansai Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Kansai Intl?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Kansai Intl from Portsmouth.
Can Cheapflights find flights from Portsmouth to Kansai Intl with no change fees?
Certainly. Search results for flights to Kansai Intl from Portsmouth shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Portsmouth to Kansai Intl become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!