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Cheap flights from Portsmouth to Osaka from £963

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 22/7. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OSA
15 Jul — 22 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Osaka

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Osaka
Explore the most affordable flight options available from Portsmouth to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 June 2026.

Fri 3/706:45
SOU
-
KIX
2 stops30h 25m
Multiple Airlines
Thu 9/712:10
KIX
-
SOU
3 stops39h 30m
Multiple Airlines
Deal found 12/6£987
Wed 25/1109:20
SOU
-
KIX
2 stops22h 05m
Multiple Airlines
Tue 8/1217:55
KIX
-
SOU
2 stops34h 35m
Multiple Airlines
Deal found 13/6£1,059
Sun 26/709:20
SOU
-
KIX
2 stops24h 05m
Qatar Airways
Sun 2/818:55
KIX
-
SOU
2 stops32h 35m
Qatar Airways
Deal found 11/6£1,068
Fri 3/717:20
SOU
-
KIX
1 stop32h 55m
KLM
Thu 9/711:25
KIX
-
SOU
2 stops38h 10m
KLM
Deal found 12/6£1,094
Sun 26/709:20
SOU
-
KIX
3 stops27h 55m
Multiple Airlines
Sun 2/814:20
KIX
-
SOU
2 stops34h 30m
Multiple Airlines
Deal found 11/6£1,250

Find flight deals from Portsmouth to Osaka

Keep the following information in mind while searching for Portsmouth to Osaka flight deals. Data was last updated 15 June 2026.

Round-trip from

£987

One-way from

£963

Popular in

July

Cheapest in

January

Average price

£648
3/7-9/7
  • 3/7-9/7
  • 5 total stops
  • 69h 55m total
  • Portsmouth to Osaka
Search Deals
22/7
  • 22/7
  • 2 total stops
  • 24h 05m total
  • Portsmouth to Osaka
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£105 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 June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Osaka 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 15 June 2026.
Use the filters below to find and compare flights from Portsmouth to Osaka 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

Wed 25/11

09:20-16:25

2 stops22h 05m

Osaka Kansai Intl

Tue 8/12

17:55-19:30

2 stops34h 35m

£1,059

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Fri 3/7

19:30-11:40

3 stops32h 10m

Osaka Kansai Intl

Thu 9/7

12:10-19:40

3 stops39h 30m

£1,069

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Fri 3/7

17:20-10:15

1 stop32h 55m

Osaka Kansai Intl

Thu 9/7

11:25-17:35

2 stops38h 10m

£1,094

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Sun 26/7

09:20-21:15

3 stops27h 55m

Osaka Kansai Intl

Sun 2/8

14:20-16:50

2 stops34h 30m

£1,250

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Sun 26/7

17:30-10:15

1 stop32h 45m

Osaka Kansai Intl

Sun 2/8

11:55-08:45

1 stop28h 50m

£1,755

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Fri 4/9

19:55-17:25

2 stops37h 30m

Osaka Kansai Intl

Fri 18/9

18:55-09:45

2 stops22h 50m

£1,764

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Thu 25/6

09:20-17:25

2 stops24h 05m

Osaka Kansai Intl

Mon 29/6

18:55-19:30

2 stops32h 35m

£2,009

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Thu 10/9

09:20-17:25

2 stops24h 05m

Osaka Kansai Intl

Mon 28/9

18:55-19:30

2 stops32h 35m

£4,009

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Thu 10/9

09:20-17:25

2 stops24h 05m

Osaka Kansai Intl

Sun 27/9

18:55-19:30

2 stops32h 35m

£4,093

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Tue 8/9

20:00-17:25

2 stops37h 25m

Osaka Kansai Intl

Fri 25/9

18:55-19:30

2 stops32h 35m

£4,093

Flights are sorted by cheapest return flights first.

Deals found on 13/6

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from Portsmouth to Osaka

Have a flexible travel schedule? Discover the best time to fly to Osaka 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
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Osaka

Get insights into the airlines that provide service to Osaka. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Osaka. Reviews last updated 15 June 2026.
Check out reviews from past customers who have flown with KLM from Portsmouth to Osaka to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,528 reviews
Check prices

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,528 reviews
KLM
7.8
Good
1,528 reviews
Check prices

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Osaka. 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?

    KLM can get you from Portsmouth to Osaka in just under 32h 55m. Your travel time can differ by up to . Airlines will cover a distance of 5970 mi.

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

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

  • How can I find direct flights from Portsmouth to Osaka?

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Osaka 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

Browse thousands of different options on Cheapflights for your next trip

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Top 8 airlines flying from Portsmouth to Osaka

Discover the top 8 airlines that operate flights from Portsmouth to Osaka. 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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£398Average£648FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£430Average£576FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£458Average£688FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£552Average£941FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Cathay PacificCheapest£701Average£877FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
KLMCheapest£785Average£1,242FlexibilityNo cancel feeOn-time75%
Search KLM flights
Etihad AirwaysCheapest£847Average£1,174FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
EmiratesCheapest£985Average£1,111FlexibilityNo cancel feeOn-time75%
Search Emirates flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Portsmouth to Osaka?

Cheapflights helps you search for flights from Portsmouth to Osaka via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portsmouth to Osaka for you. Better yet — we are completely free to use.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Portsmouth to Osaka, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Portsmouth to Osaka flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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