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Cheap flights from Portsmouth to Japan from £589

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — FUK
18 Jun — 25 Jun1
1 adult

Cheap flight deals from Portsmouth to Japan

Keep the following information in mind while searching for Portsmouth to Japan flight deals. Data was last updated 13 June 2025.

Round-trip from

£836

One-way from

£589

Popular in

August

Cheapest in

November

Average price

£577
8/11-22/11
  • 8/11-22/11
  • 6 total stops
  • 79h 10m total
  • Portsmouth to Japan
Search Deals
15/9
  • 15/9
  • 2 total stops
  • 20h 05m total
  • Portsmouth to Japan
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£117 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 2025
Search Deals

Find flight deals from Portsmouth to Japan

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 13 June 2025.

Sat 8/1107:15SOU - NRT
3 stops43h 10mMultiple Airlines
Sat 22/1116:40NRT - SOU
3 stops36h 00mMultiple Airlines
Deal found 12/6£836
Tue 17/617:35SOU - HND
2 stops28h 20mKLM
Tue 24/608:50HND - SOU
2 stops31h 55mKLM
Deal found 12/6£879
Wed 9/709:20SOU - NRT
1 stop17h 25mKLM
Wed 16/712:35NRT - SOU
1 stop28h 10mKLM
Deal found 11/6£909
Sat 8/1109:30SOU - HND
3 stops30h 10mMultiple Airlines
Fri 21/1102:00HND - SOU
3 stops46h 35mMultiple Airlines
Deal found 12/6£984
Sun 27/719:55SOU - KIX
2 stops32h 50mMultiple Airlines
Sun 3/814:20KIX - SOU
2 stops49h 50mMultiple Airlines
Deal found 12/6£1,094
Mon 1/909:40SOU - HND
2 stops30h 15mQatar Airways
Mon 15/922:50HND - SOU
2 stops28h 40mQatar Airways
Deal found 12/6£1,584
Sat 8/1109:30SOU - NRT
2 stops41h 25mQatar Airways
Sat 22/1116:55NRT - SOU
2 stops35h 45mQatar Airways
Deal found 12/6£1,768

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 13 June 2025.
Use the filters below to find and compare flights from Portsmouth to Japan that are best for you.

Fly from

Portsmouth

Fly to

Japan

Route

Depart

Return

Price

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Sat 8/11

07:15-11:25

3 stops43h 10m

Tokyo Narita

Sat 22/11

16:40-19:40

3 stops36h 00m

£836

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Wed 9/7

09:20-10:45

1 stop17h 25m

Tokyo Narita

Wed 16/7

12:35-08:45

1 stop28h 10m

£909

SouthamptonTokyo

SOU - HND

SOUHND

Southampton Eastleigh

Sat 8/11

09:30-00:40

3 stops30h 10m

Tokyo Haneda

Fri 21/11

02:00-15:35

3 stops46h 35m

£984

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Sun 27/7

19:55-12:45

2 stops32h 50m

Osaka Kansai Intl

Sun 3/8

14:20-08:10

2 stops49h 50m

£1,094

SouthamptonTokyo

SOU - HND

SOUHND

Southampton Eastleigh

Wed 9/7

18:25-05:55

2 stops27h 30m

Tokyo Haneda

Wed 16/7

22:05-17:50

2 stops27h 45m

£1,345

SouthamptonTokyo

SOU - HND

SOUHND

Southampton Eastleigh

Mon 1/9

09:40-23:55

2 stops30h 15m

Tokyo Haneda

Mon 15/9

22:50-19:30

2 stops28h 40m

£1,584

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Sat 8/11

09:30-11:55

2 stops41h 25m

Tokyo Narita

Sat 22/11

16:55-19:40

2 stops35h 45m

£1,768

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Mon 15/9

08:40-12:45

2 stops20h 05m

£589

SouthamptonTokyo

SOU - HND

SOUHND

Southampton Eastleigh

Mon 8/9

09:40-23:55

2 stops30h 15m

£965

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Mon 15/9

09:20-10:20

1 stop17h 00m

£1,032

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 13 results
1
2

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 month to book a flight from Portsmouth to Japan?

Currently, November is the cheapest month in which you can book a flight from Portsmouth to Japan (average of £550). Flying from Portsmouth to Japan in July is currently the most expensive (average of £1,239). 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 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 13 June 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Japan as you normally would.

Rainfall in Japan by month

Plan your trip to Japan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Japan ranges from 50.0 - 210.0 inches per month. September is typically the wettest month, when rainfall can reach 210.0 mm. January is typically the driest time to visit Japan when rainfall is around 50.0 mm.

Temperature in Japan by month

Plan your trip to Japan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Japan, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 6.0 C).

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 13 June 2025.
Get a feel of what it's like to fly with KLM and Qatar Airways from Portsmouth to Japan by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,358 reviews
Check prices

Food

7.2

Overall

7.8

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Food

7.2

Overall

7.8

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Qatar Airways
7.4
Good
3,584 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Food

7.2

Overall

7.8

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

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.

  • 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.

  • 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.

  • What is the cheapest month to book a flight from Portsmouth to Japan?

    Currently, November is the cheapest month in which you can book a flight from Portsmouth to Japan (average of £550). Flying from Portsmouth to Japan in July is currently the most expensive (average of £1,239). 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

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Alternative routes for Portsmouth to Japan

See prices for flight routes from nearby airports that may be better suited for you.
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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£365Average£533FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Shenzhen AirlinesCheapest£415Average£594FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
FinnairCheapest£439Average£982FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Asiana AirlinesCheapest£541Average£847FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Air FranceCheapest£563Average£775FlexibilityNo cancel feeOn-time77%
Search Air France flights
Scandinavian AirlinesCheapest£565Average£926FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
KLMCheapest£589Average£945FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air IndiaCheapest£607Average£642FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
LOTCheapest£645Average£879FlexibilityNo cancel feeOn-time81%
Search LOT flights
Etihad AirwaysCheapest£654Average£787FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights

Fly with Cheapflights

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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.

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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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