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Cheap flights from Portsmouth to Osaka Kansai Intl Airport from £419

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 25/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — KIX
5 Sep — 12 Sep1
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 6 August 2026.

Thu 27/809:15 -
1 stop17h 00m
Thu 3/911:25 -
2 stops29h 10m
Deal found 3/8£840
Wed 16/906:45 -
3 stops30h 05m
Wed 23/911:00 -
3 stops40h 30m
Deal found 2/8£922
Wed 16/917:20 -
1 stop32h 45m
Wed 23/911:25 -
2 stops29h 10m
Deal found 2/8£1,105
Sat 12/906:45 -
3 stops28h 55m
Sat 19/912:45 -
3 stops36h 05m
Deal found 3/8£1,133
Thu 27/820:00 -
3 stops31h 40m
Thu 3/907:35 -
3 stops43h 55m
Deal found 3/8£1,209

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 6 August 2026.

Round-trip from

£840

One-way from

£419

Popular in

July

Cheapest in

January

Average price

£942
KLM
  • KLM
  • 27/8-3/9
  • 3 total stops
  • 46h 10m total
  • Portsmouth to Osaka
Search Deals
25/11
  • 25/11
  • 3 total stops
  • 35h 50m total
  • Portsmouth to Osaka
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£120 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 6 August 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 Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Thu 27/8

09:15-10:15

1 stop17h 00m

Osaka Kansai Intl

Thu 3/9

11:25-08:35

2 stops29h 10m

£840

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Wed 16/9

06:45-20:50

3 stops30h 05m

Osaka Kansai Intl

Wed 23/9

11:00-19:30

3 stops40h 30m

£922

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Wed 16/9

17:20-10:05

1 stop32h 45m

Osaka Kansai Intl

Wed 23/9

11:25-08:35

2 stops29h 10m

£1,105

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Thu 27/8

20:00-11:40

3 stops31h 40m

Osaka Kansai Intl

Thu 3/9

07:35-19:30

3 stops43h 55m

£1,209

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Fri 21/8

19:55-17:25

2 stops37h 30m

Osaka Kansai Intl

Fri 28/8

18:55-09:45

2 stops22h 50m

£2,097
Cheapest one-way

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Wed 25/11

18:20-12:35

2 stops33h 15m

£429
Fastest single journey

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Wed 25/11

08:40-11:20

1 stop17h 40m

£833

Flights are sorted by cheapest return flights first.

Deals found on 2/8

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.

  • 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 17h. 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.

See more FAQs

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Top 9 airlines flying from Portsmouth to Kansai Intl

Discover the top 9 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 6 August 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£397Average£645FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£429Average£477FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£457Average£753FlexibilityNo cancel feeOn-time67%
Search Air China flights
KLMCheapest£543Average£701FlexibilityNo cancel feeOn-time75%
Search KLM flights
Asiana AirlinesCheapest£550Average£920FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Etihad AirwaysCheapest£632Average£1,141FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest£736Average£899FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
EmiratesCheapest£983Average£1,071FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Thai AirwaysCheapest£1,014Average£1,115FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

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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!

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