In terms of precipitation, rainfall in Osaka Kansai Intl Airport ranges from 40.0 - 200.0 inches per month. June is typically the wettest month, when rainfall can reach 200.0 mm. January is typically the driest time to visit Osaka Kansai Intl Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to Osaka Kansai Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 6.0 C).

What is the cheapest time of day to fly from P0R to KIX?

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.

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.

£616+ Cheap Flights from Portsmouth to Osaka Kansai Intl Airport

Cheap flight deals from Portsmouth to Kansai Intl

Enter your travel dates to find the best prices.

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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 16 September 2026.

Thu 29/1012:25 -

2 stops44h 35m

Thu 5/1114:20 -

2 stops30h 35m

Deal found 14/9£814

Tue 3/1120:00 -

2 stops35h 25m

Tue 24/1117:55 -

2 stops34h 35m

Deal found 15/9£1,464

Mon 2/1120:00 -

2 stops59h 25m

Tue 24/1117:55 -

2 stops34h 35m

Deal found 15/9£1,473

Wed 28/1020:00 -

2 stops35h 25m

Tue 24/1117:55 -

2 stops34h 35m

Deal found 15/9£1,505

Fri 30/1020:00 -

2 stops35h 25m

Tue 24/1117:55 -

2 stops34h 35m

Deal found 15/9£1,516

Tue 3/1120:00 -

2 stops35h 25m

Thu 26/1117:55 -

2 stops34h 35m

Deal found 15/9£1,696

Mon 2/1120:00 -

2 stops59h 25m

Thu 26/1117:55 -

2 stops34h 35m

Deal found 15/9£1,705

Sat 31/1010:15 -

2 stops21h 10m

Tue 24/1117:55 -

2 stops34h 35m

Deal found 15/9£1,722

Wed 28/1020:00 -

2 stops35h 25m

Thu 26/1117:55 -

2 stops34h 35m

Deal found 15/9£1,737

Find flight deals from Portsmouth to Kansai Intl

Round-trip from	£814
One-way from	£616
Popular in	July
Cheapest in	January
Average price	£625

29/10-5/11
4 total stops
75h 10m total
Portsmouth to Osaka

Search Deals

20/2-31/12
2 total stops
22h 05m total
Portsmouth to Osaka

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£116 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 September 2026

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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

Cheapest return flight

Fastest return journey

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Sat 20/2

09:20-16:25

2 stops22h 05m

Osaka Kansai Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£616

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Sun 21/2

12:25-16:25

2 stops43h 00m

Osaka Kansai Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£693

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Sun 21/2

09:20-16:25

2 stops22h 05m

Osaka Kansai Intl

Sun 7/3

17:55-19:30

2 stops34h 35m

£991

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Sat 20/2

09:20-16:25

2 stops22h 05m

Osaka Kansai Intl

Sun 7/3

17:55-19:30

2 stops34h 35m

£991

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Thu 29/10

17:35-13:20

3 stops34h 45m

Osaka Kansai Intl

Thu 5/11

14:20-08:55

3 stops51h 35m

£1,019

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Fri 19/2

09:20-21:05

3 stops26h 45m

Osaka Kansai Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£1,216

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Sun 21/2

09:20-21:05

3 stops26h 45m

Osaka Kansai Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£1,216

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Wed 10/3

09:20-16:25

2 stops22h 05m

Osaka Kansai Intl

Wed 24/3

14:40-19:30

3 stops37h 50m

£1,570

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Sun 14/3

09:20-16:25

2 stops22h 05m

Osaka Kansai Intl

Fri 26/3

17:55-11:55

2 stops27h 00m

£1,653

SouthamptonOsaka

SOU Southampton Eastleigh - KIX Osaka Kansai Intl

SOUKIX

Southampton Eastleigh

Wed 10/3

09:20-21:05

3 stops26h 45m

Osaka Kansai Intl

Wed 24/3

14:40-19:30

3 stops37h 50m

£1,673

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 15 resultsSorted 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.

SOU-KIX

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

P0R-KIX

SOU-KIX

No data available for this route at this time. Please check back soon.

Related info for your journey

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.

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to Japan

Flights by cabin class

Kansai Intl flight routes

Other flight options

Popular flights

Top destinations

Top 8 airlines flying from Portsmouth to Kansai Intl

Airline	Cheapest	Average	Flexibility	On-time
China Eastern	Cheapest£362	Average£612	FlexibilityNo cancel fee	On-time62%	Search China Eastern flights
China Southern	Cheapest£428	Average£446	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
Air China	Cheapest£452	Average£740	FlexibilityNo cancel fee	On-time67%	Search Air China flights
KLM	Cheapest£557	Average£671	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Etihad Airways	Cheapest£631	Average£1,151	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
Cathay Pacific	Cheapest£735	Average£896	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights
Asiana Airlines	Cheapest£741	Average£884	FlexibilityNo cancel fee	On-time76%	Search Asiana Airlines flights
Emirates	Cheapest£981	Average£1,070	FlexibilityNo cancel fee	On-time75%	Search Emirates flights

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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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Cheap flights from Portsmouth to Osaka Kansai Intl Airport from £616

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/2. 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

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 16 September 2026.

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 16 September 2026.

Best flights from Portsmouth to Kansai IntlDiscover carefully curated flight deals from Portsmouth to Kansai Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2026.

Discover carefully curated flight deals from Portsmouth to Kansai Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2026.

Last-minute flights from Portsmouth to Kansai IntlDiscover last-minute flight deals from Portsmouth to Kansai Intl. Data last updated 16 September 2026 and is based on user searches.

Discover last-minute flight deals from Portsmouth to Kansai Intl. Data last updated 16 September 2026 and is based on user searches.

One-way flights from Portsmouth to Kansai IntlSearch for one-way flight options from Portsmouth to Kansai Intl. Find affordable one-way fares based on user searches. Data last updated 16 September 2026.

Search for one-way flight options from Portsmouth to Kansai Intl. Find affordable one-way fares based on user searches. Data last updated 16 September 2026.

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

Best time to book a flight from Portsmouth to Kansai Intl

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Cheapflights Insights

Related info for your journey

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

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

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

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.

Alternative routes for Portsmouth to Kansai Intl

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Kansai Intl by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Japan

Book a non-stop flight to one of these other cities located in Japan.

Search flights from Portsmouth to Kansai Intl by cabin class

Find flights from Portsmouth to Kansai Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Kansai Intl

Explore flights to Kansai Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 16 September 2026.

Portsmouth and Kansai Intl flights

Browse other Portsmouth and Kansai Intl flight options. Last updated on 16 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Portsmouth to Kansai Intl flights

Consider these flights travelling from Portsmouth to Kansai Intl.

Top 8 airlines flying from Portsmouth to Kansai Intl

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Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Kansai Intl?

Can Cheapflights find flights from Portsmouth to Kansai Intl with no change fees?

Can Cheapflights notify me if prices for flights from Portsmouth to Kansai Intl become cheaper?

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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 16 September 2026.

Best flights from Portsmouth to Kansai Intl
Discover carefully curated flight deals from Portsmouth to Kansai Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2026.

Last-minute flights from Portsmouth to Kansai Intl
Discover last-minute flight deals from Portsmouth to Kansai Intl. Data last updated 16 September 2026 and is based on user searches.

One-way flights from Portsmouth to Kansai Intl
Search for one-way flight options from Portsmouth to Kansai Intl. Find affordable one-way fares based on user searches. Data last updated 16 September 2026.