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Cheap flights from Portsmouth to Japan from £472

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — HND
15 Jul — 22 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Japan

Enter your travel dates to find the best prices.

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

Wed 17/617:20
SOU
-
NRT
1 stop33h 05m
KLM
Tue 23/612:15
NRT
-
SOU
1 stop28h 20m
KLM
Deal found 11/6£917
Wed 17/608:15
SOU
-
NRT
2 stops26h 55m
Multiple Airlines
Tue 23/617:25
NRT
-
SOU
2 stops34h 05m
Multiple Airlines
Deal found 15/6£926
Mon 10/817:20
SOU
-
NRT
2 stops35h 25m
Multiple Airlines
Sun 16/818:00
NRT
-
SOU
2 stops33h 30m
Multiple Airlines
Deal found 13/6£939
Wed 1/706:45
SOU
-
NRT
2 stops21h 45m
Multiple Airlines
Tue 14/713:55
NRT
-
SOU
2 stops32h 50m
Multiple Airlines
Deal found 15/6£943
Wed 17/609:05
SOU
-
HND
2 stops26h 35m
Multiple Airlines
Tue 23/607:25
HND
-
SOU
2 stops33h 10m
Multiple Airlines
Deal found 15/6£982
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 17/620:00
SOU
-
NRT
2 stops32h 55m
Qatar Airways
Tue 23/617:25
NRT
-
SOU
2 stops34h 05m
Qatar Airways
Deal found 11/6£1,009
Wed 4/1120:00
SOU
-
HND
2 stops42h 55m
Qatar Airways
Wed 11/1123:30
HND
-
SOU
2 stops29h 00m
Qatar Airways
Deal found 14/6£1,018
Wed 1/717:20
SOU
-
NRT
1 stop33h 05m
KLM
Tue 14/712:15
NRT
-
SOU
1 stop28h 30m
KLM
Deal found 15/6£1,032
Sat 14/1117:05
SOU
-
HND
2 stops22h 55m
Multiple Airlines
Sat 28/1123:30
HND
-
SOU
2 stops26h 05m
Multiple Airlines
Deal found 15/6£1,053
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
Mon 27/720:00
SOU
-
HND
2 stops44h 05m
Qatar Airways
Sun 2/801:35
HND
-
SOU
2 stops49h 55m
Qatar Airways
Deal found 12/6£1,064

Find flight deals from Portsmouth to Japan

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

Round-trip from

£939

One-way from

£472

Popular in

August

Cheapest in

January

Average price

£698
10/8-16/8
  • 10/8-16/8
  • 4 total stops
  • 68h 55m total
  • Portsmouth to Japan
Search Deals
15/10
  • 15/10
  • 2 total stops
  • 32h 00m total
  • Portsmouth to Japan
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£90 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 June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Japan 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 Japan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Mon 10/8

17:20-12:45

2 stops35h 25m

Tokyo Narita

Sun 16/8

18:00-19:30

2 stops33h 30m

£939

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Wed 1/7

17:20-10:25

1 stop33h 05m

Tokyo Narita

Tue 14/7

12:15-08:45

1 stop28h 30m

£1,032

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

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Wed 1/7

17:20-10:25

1 stop33h 05m

Tokyo Narita

Tue 14/7

07:40-08:45

2 stops33h 05m

£1,076

SouthamptonTokyo

SOU - HND

SOUHND

Southampton Eastleigh

Thu 29/10

20:00-23:55

2 stops42h 55m

Tokyo Haneda

Sun 15/11

23:30-16:35

2 stops26h 05m

£1,085

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

SouthamptonSapporo

SOU - CTS

SOUCTS

Southampton Eastleigh

Fri 3/7

06:45-18:35

3 stops27h 50m

Sapporo Chitose

Thu 9/7

08:55-19:40

3 stops42h 45m

£1,139

SouthamptonTokyo

SOU - HND

SOUHND

Southampton Eastleigh

Thu 9/7

18:05-22:50

2 stops20h 45m

Tokyo Haneda

Thu 16/7

08:50-17:35

2 stops40h 45m

£1,196

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Thu 9/7

18:05-21:05

2 stops19h 00m

Tokyo Narita

Thu 16/7

12:15-08:45

1 stop28h 30m

£1,227

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 42 resultsSorted by cheapest first
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5

Best time to book a flight from Portsmouth to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan 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 Japan

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

Find hourly flight availability from Portsmouth to Japan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 June 2026.

It’s optimal to fly from Portsmouth to Japan in the afternoon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight at midday.

Weekly flight availability from Portsmouth to Japan

Explore weekly flight availability from Portsmouth to Japan. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 June 2026.

The most flights from P0R to JP0 are scheduled on a Monday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (14 on average).

What is the cheapest day to fly from Portsmouth to Japan?

Use this chart to determine the cheapest time to fly return from Portsmouth to Japan. Price data was last updated on 8 June 2026.

Travellers seeking maximum savings on their Portsmouth to Japan flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Japan

Get insights into the airlines that provide service to Japan. 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 Japan. Reviews last updated 15 June 2026.
Check out reviews from past customers who have flown with KLM from Portsmouth to Japan 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

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Food

7.3

Boarding

7.8

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

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Food

7.3

Boarding

7.8

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 Japan. 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 Japan?

    KLM and Qatar Airways can get you from Portsmouth to Japan in just under 30h 40m. Your travel time can differ by up to 2h 25m. There are 6007 mi between Portsmouth and Japan. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Portsmouth to Japan?

    When deciding which route to take from Portsmouth to Japan consider Southampton Eastleigh - Tokyo Narita, Southampton Eastleigh - Tokyo Haneda or Southampton Eastleigh - Osaka Kansai Intl as they are the most popular.

  • What are the most reliable airlines from Portsmouth to Japan?

    No one likes to see their flight delayed. When booking a flight from Portsmouth to Japan consider choosing Japan Airlines (87%), Iberia (87%) or British Airways (87%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portsmouth to Japan?

    Looking for the cheapest flight from Portsmouth to Japan? While on average our users pay £3,137, our data indicates the cheapest price to be £756. The most popular route (Southampton Eastleigh - Tokyo Narita), is priced around £939.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Japan 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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Alternative routes for Portsmouth to Japan

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Top 10 airlines flying from Portsmouth to Japan

Discover the top 10 airlines that operate flights from Portsmouth to Japan. 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
Shenzhen AirlinesCheapest£334Average£722FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Austrian AirlinesCheapest£402Average£692FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
China SouthernCheapest£430Average£581FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Asiana AirlinesCheapest£552Average£1,042FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Etihad AirwaysCheapest£556Average£990FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
EmiratesCheapest£562Average£1,189FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Air IndiaCheapest£568Average£707FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
SWISSCheapest£678Average£854FlexibilityNo cancel feeOn-time79%
Search SWISS flights
KLMCheapest£685Average£1,144FlexibilityNo cancel feeOn-time75%
Search KLM flights
IberiaCheapest£697Average£969FlexibilityNo cancel feeOn-time77%
Search Iberia 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 Japan?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Portsmouth to Japan. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portsmouth to Japan.

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

Yes! Cheapflights helps users easily find flights from Portsmouth to Japan with no change fees.

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

Of course! You can now track prices for flights from Portsmouth to Japan and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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