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Cheap flights from Portsmouth to Osaka Kansai Intl Airport from £918

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — KIX
17 may. — 24 may.1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Kansai Intl

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Kansai Intl
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 17 abril 2026.

vie. 29/517:20
SOU
-
KIX
2 stops34h 30m
Multiple Airlines
vie. 5/618:40
KIX
-
SOU
2 stops32h 50m
Multiple Airlines
Deal found 14/4£918
lun. 25/509:20
SOU
-
KIX
3 stops29h 25m
Multiple Airlines
jue. 28/511:45
KIX
-
SOU
3 stops29h 40m
Multiple Airlines
Deal found 14/4£990
mar. 19/506:45
SOU
-
KIX
2 stops21h 05m
Multiple Airlines
mar. 26/518:20
KIX
-
SOU
3 stops31h 25m
Multiple Airlines
Deal found 15/4£1,045
dom. 14/620:00
SOU
-
KIX
2 stops37h 25m
Multiple Airlines
mar. 23/618:55
KIX
-
SOU
2 stops29h 55m
Multiple Airlines
Deal found 15/4£1,055
jue. 28/520:00
SOU
-
KIX
2 stops55h 50m
Multiple Airlines
jue. 4/609:30
KIX
-
SOU
2 stops31h 15m
Multiple Airlines
Deal found 13/4£1,141
jue. 28/509:10
SOU
-
KIX
3 stops39h 25m
Qatar Airways
jue. 4/614:50
KIX
-
SOU
3 stops36h 40m
Qatar Airways
Deal found 13/4£1,259

Find 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 17 abril 2026.

Round-trip from

£918

Popular in

July

Cheapest in

January

Average price

£675
29/5-5/6
  • 29/5-5/6
  • 4 total stops
  • 67h 20m total
  • Portsmouth to Osaka
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£93 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Kansai Intl 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 17 abril 2026.
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

Cheapest return flight
Fastest return journey

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

mar. 19/5

06:45-11:50

2 stops21h 05m

Osaka Kansai Intl

mar. 26/5

18:20-17:45

3 stops31h 25m

£1,045

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

dom. 14/6

20:00-17:25

2 stops37h 25m

Osaka Kansai Intl

mar. 23/6

18:55-16:50

2 stops29h 55m

£1,055

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

jue. 28/5

20:00-11:50

2 stops55h 50m

Osaka Kansai Intl

jue. 4/6

09:30-08:45

2 stops31h 15m

£1,141

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

vie. 29/5

08:55-22:45

3 stops29h 50m

Osaka Kansai Intl

vie. 5/6

16:15-19:30

3 stops35h 15m

£1,154

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

lun. 25/5

17:20-11:50

2 stops34h 30m

Osaka Kansai Intl

jue. 28/5

23:45-12:00

2 stops44h 15m

£1,197

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

jue. 28/5

09:10-08:35

3 stops39h 25m

Osaka Kansai Intl

jue. 4/6

14:50-19:30

3 stops36h 40m

£1,259

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

mar. 19/5

17:20-10:15

1 stop32h 55m

Osaka Kansai Intl

mar. 26/5

11:55-08:35

1 stop28h 40m

£1,436

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

vie. 29/5

17:20-09:40

2 stops56h 20m

Osaka Kansai Intl

vie. 5/6

11:55-08:45

1 stop28h 50m

£1,729

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Sorted by cheapest first

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.
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 Osaka Kansai Intl Airport
No data available for this route at this time. Please check back soon.

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.

  • Can I find deals for flights from Portsmouth to Kansai Intl that include hotel bookings?

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

  • How can I find direct flights from Portsmouth to Kansai Intl?

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

  • Can I find deals for business class flights from Portsmouth to Kansai Intl?

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

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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 17 abril 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£394Average£641FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£426Average£577FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£450Average£651FlexibilityNo cancel feeOn-time67%
Search Air China flights
Cathay PacificCheapest£694Average£851FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Asiana AirlinesCheapest£747Average£1,038FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
KLMCheapest£778Average£1,222FlexibilityNo cancel feeOn-time75%
Search KLM flights
Etihad AirwaysCheapest£840Average£1,164FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
FinnairCheapest£873Average£1,212FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Thai AirwaysCheapest£991Average£1,126FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
EmiratesCheapest£1,011Average£1,101FlexibilityNo cancel feeOn-time75%
Search Emirates flights

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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.

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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.

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