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Cheap flights from Portsmouth to Osaka Kansai Intl Airport from £919

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 14/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — KIX
3 Sep — 10 Sep1
1 adult

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 29 August 2025.

Round-trip from

£1,147

One-way from

£919

Popular in

July

Cheapest in

November

Average price

£828
11/10-18/10
  • 11/10-18/10
  • 5 total stops
  • 61h 20m total
  • Portsmouth to Osaka
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14/12
  • 14/12
  • 2 total stops
  • 21h 40m total
  • Portsmouth to Osaka
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£90 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Portsmouth to Kansai Intl

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 29 August 2025.

Sat 11/1016:25SOU - KIX
3 stops35h 15mMultiple Airlines
Sat 18/1014:40KIX - SOU
2 stops26h 05mMultiple Airlines
Deal found 27/8£1,147
Sat 11/1018:05SOU - KIX
1 stop32h 15mKLM
Sat 18/1012:00KIX - SOU
1 stop28h 45mKLM
Deal found 27/8£1,179
Thu 6/1108:40SOU - KIX
2 stops22h 45mMultiple Airlines
Sat 22/1109:55KIX - SOU
3 stops38h 40mMultiple Airlines
Deal found 28/8£1,428
Sun 31/809:10SOU - KIX
2 stops24h 15mQatar Airways
Tue 9/918:55KIX - SOU
2 stops32h 35mQatar Airways
Deal found 27/8£1,463
Tue 9/909:10SOU - KIX
2 stops48h 15mQatar Airways
Mon 15/918:55KIX - SOU
2 stops32h 35mQatar Airways
Deal found 28/8£1,523
Sat 6/909:40SOU - KIX
2 stops47h 45mQatar Airways
Mon 15/918:55KIX - SOU
2 stops32h 35mQatar Airways
Deal found 28/8£1,548
Thu 4/909:40SOU - KIX
2 stops23h 45mQatar Airways
Mon 15/918:55KIX - SOU
2 stops32h 35mQatar Airways
Deal found 28/8£1,565
Fri 5/909:40SOU - KIX
2 stops47h 45mQatar Airways
Mon 15/918:55KIX - SOU
2 stops32h 35mQatar Airways
Deal found 28/8£1,597
Mon 8/909:40SOU - KIX
2 stops23h 45mQatar Airways
Mon 15/918:55KIX - SOU
2 stops32h 35mQatar Airways
Deal found 28/8£1,625

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 29 August 2025.
Use the filters below to find and compare flights from Portsmouth to Osaka Kansai Intl Airport that are best for you.

Fly from

Portsmouth

Fly to

Kansai Intl

Route

Depart

Return

Price

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Sat 11/10

16:25-11:40

3 stops35h 15m

Osaka Kansai Intl

Sat 18/10

14:40-08:45

2 stops26h 05m

£1,147

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Sat 11/10

18:05-10:20

1 stop32h 15m

Osaka Kansai Intl

Sat 18/10

12:00-08:45

1 stop28h 45m

£1,179

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Thu 6/11

08:40-16:25

2 stops22h 45m

Osaka Kansai Intl

Sat 22/11

09:55-15:35

3 stops38h 40m

£1,428

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Tue 9/9

09:10-17:25

2 stops48h 15m

Osaka Kansai Intl

Mon 15/9

18:55-19:30

2 stops32h 35m

£1,523

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Sun 7/9

09:10-17:25

2 stops48h 15m

Osaka Kansai Intl

Mon 15/9

18:55-19:30

2 stops32h 35m

£1,548

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Wed 10/9

09:10-17:25

2 stops24h 15m

Osaka Kansai Intl

Mon 15/9

18:55-19:30

2 stops32h 35m

£1,565

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Mon 8/9

09:40-17:25

2 stops23h 45m

Osaka Kansai Intl

Mon 15/9

18:55-19:30

2 stops32h 35m

£1,625

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Sun 5/10

09:10-17:25

2 stops24h 15m

Osaka Kansai Intl

Tue 14/10

18:55-19:30

2 stops32h 35m

£1,647

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Sat 4/10

09:40-17:25

2 stops23h 45m

Osaka Kansai Intl

Tue 14/10

18:55-19:30

2 stops32h 35m

£1,647

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Sun 14/12

09:45-16:25

2 stops21h 40m

£919

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 12 results
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2

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

What is the cheapest month to book a flight from Portsmouth to Osaka Kansai Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Portsmouth to Osaka Kansai Intl Airport (average of £660). Flying from Portsmouth to Osaka Kansai Intl Airport in July is currently the most expensive (average of £1,386). 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 29 August 2025.

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

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.

  • How long is the flight from Portsmouth to Osaka Kansai Intl Airport?

    KLM can get you from Portsmouth to Osaka Kansai Intl Airport in just under 32h 15m. Your travel time can differ by up to . The distance between Portsmouth and Osaka Kansai Intl Airport is about 5970 mi.

  • 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.

  • What is the cheapest month to book a flight from Portsmouth to Osaka Kansai Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Portsmouth to Osaka Kansai Intl Airport (average of £660). Flying from Portsmouth to Osaka Kansai Intl Airport in July is currently the most expensive (average of £1,386). 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

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.

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 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£383Average£557FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£394Average£609FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest£417Average£564FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Shenzhen AirlinesCheapest£434Average£531FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Cathay PacificCheapest£667Average£813FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
FinnairCheapest£715Average£927FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£720Average£905FlexibilityNo cancel feeOn-time75%
Search KLM flights
Japan AirlinesCheapest£725Average£1,017FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Asiana AirlinesCheapest£726Average£846FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Etihad AirwaysCheapest£729Average£778FlexibilityNo cancel feeOn-time75%
Search Etihad 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 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!

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