Find flights
When to book
Airlines
FAQs

Cheap flights from Portsmouth to Japan from £776

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 13/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — FUK
2 Mar — 9 Mar1
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 31 January 2026.

Tue 3/217:35
SOU
-
NRT
1 stop33h 10m
KLM
Tue 10/213:35
NRT
-
SOU
1 stop28h 15m
KLM
Deal found 29/1£854
Mon 16/314:35
SOU
-
NRT
2 stops21h 20m
Multiple Airlines
Mon 23/311:50
NRT
-
SOU
3 stops36h 45m
Multiple Airlines
Deal found 30/1£1,062
Tue 3/312:25
SOU
-
HND
2 stops51h 35m
Qatar Airways
Tue 17/323:30
HND
-
SOU
2 stops49h 05m
Qatar Airways
Deal found 29/1£1,117
Tue 3/312:25
SOU
-
NRT
2 stops38h 30m
Qatar Airways
Tue 17/316:55
NRT
-
SOU
2 stops31h 40m
Qatar Airways
Deal found 29/1£1,126
Mon 16/317:40
SOU
-
NRT
1 stop33h 05m
KLM
Mon 23/308:55
NRT
-
SOU
1 stop17h 10m
KLM
Deal found 30/1£1,130
Tue 3/212:25
SOU
-
NRT
2 stops38h 30m
Multiple Airlines
Tue 10/216:55
NRT
-
SOU
2 stops31h 40m
Multiple Airlines
Deal found 29/1£1,147
Mon 16/314:35
SOU
-
HND
3 stops29h 10m
Multiple Airlines
Sun 22/300:05
HND
-
SOU
2 stops26h 00m
Multiple Airlines
Deal found 30/1£1,167
Tue 3/312:25
SOU
-
NRT
2 stops38h 30m
Qatar Airways
Mon 16/321:55
NRT
-
SOU
2 stops50h 40m
Qatar Airways
Deal found 29/1£1,177
Tue 3/217:35
SOU
-
HND
2 stops40h 50m
KLM
Tue 10/222:55
HND
-
SOU
2 stops27h 10m
KLM
Deal found 29/1£1,195
Tue 3/312:25
SOU
-
NRT
2 stops38h 30m
Qatar Airways
Sun 15/316:55
NRT
-
SOU
2 stops35h 45m
Qatar Airways
Deal found 29/1£1,201
Tue 3/312:25
SOU
-
NRT
2 stops38h 30m
Qatar Airways
Thu 19/316:55
NRT
-
SOU
2 stops35h 45m
Qatar Airways
Deal found 29/1£1,224
Fri 27/208:50
SOU
-
NRT
1 stop17h 55m
KLM
Fri 6/313:35
NRT
-
SOU
1 stop36h 25m
KLM
Deal found 30/1£1,264

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 31 January 2026.

Round-trip from

£1,062

One-way from

£776

Popular in

August

Cheapest in

November

Average price

£595
16/3-23/3
  • 16/3-23/3
  • 5 total stops
  • 58h 05m total
  • Portsmouth to Japan
Search Deals
Qatar Airways
  • Qatar Airways
  • 13/4
  • 2 total stops
  • 37h 25m total
  • Portsmouth to Japan
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£113 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 January 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 31 January 2026.
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

Tue 3/3

12:25-11:55

2 stops38h 30m

Tokyo Narita

Thu 19/3

16:55-19:40

2 stops35h 45m

£1,224

SouthamptonTokyo

SOU - HND

SOUHND

Southampton Eastleigh

Mon 16/3

17:40-06:50

2 stops28h 10m

Tokyo Haneda

Mon 23/3

09:05-08:20

2 stops32h 15m

£1,265

SouthamptonTokyo

SOU - HND

SOUHND

Southampton Eastleigh

Fri 27/2

08:50-20:50

3 stops27h 00m

Tokyo Haneda

Fri 6/3

20:15-14:45

2 stops27h 30m

£1,349

SouthamptonSapporo

SOU - CTS

SOUCTS

Southampton Eastleigh

Sun 15/3

17:45-14:05

3 stops35h 20m

Sapporo Chitose

Sun 22/3

10:05-15:35

3 stops38h 30m

£1,374

SouthamptonTokyo

SOU - HND

SOUHND

Southampton Eastleigh

Mon 16/3

20:10-13:45

3 stops32h 35m

Tokyo Haneda

Mon 23/3

16:00-15:35

3 stops32h 35m

£1,399

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Wed 8/7

20:00-19:10

2 stops39h 10m

Tokyo Narita

Thu 27/8

17:25-19:30

2 stops34h 05m

£1,448

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Sun 5/7

20:00-19:10

2 stops39h 10m

Tokyo Narita

Tue 25/8

17:25-19:30

2 stops34h 05m

£1,467

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Mon 6/7

20:00-12:55

2 stops32h 55m

Tokyo Narita

Mon 24/8

22:25-19:30

2 stops29h 05m

£1,469

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Wed 8/7

20:00-19:10

2 stops39h 10m

Tokyo Narita

Wed 26/8

22:25-19:30

2 stops29h 05m

£1,477

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Wed 8/7

20:00-19:10

2 stops39h 10m

Tokyo Narita

Sat 29/8

17:25-19:30

2 stops34h 05m

£1,504

Flights are sorted by cheapest return flights first.

Deals found on 30/1

Showing 1-10 of 48 results
1
2
3
...
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 month to book a flight from Portsmouth to Japan?

Currently, March is the cheapest month in which you can book a flight from Portsmouth to Japan (average of £300). Flying from Portsmouth to Japan in July is currently the most expensive (average of £657). 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 31 January 2026.

It’s optimal to fly from Portsmouth to Japan in the afternoon. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight in the evening.

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 30 March 2025.

Travellers seeking maximum savings on their Portsmouth to Japan flight should consider departing on Tuesday 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 31 January 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
7.7
Good
1,444 reviews
Check prices

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.6

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,444 reviews
KLM
7.7
Good
1,444 reviews
Check prices

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.6

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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?

    Qatar Airways and KLM can get you from Portsmouth to Japan in just under 28h 10m. Your travel time can differ by up to 10h 20m. 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.

  • 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, March is the cheapest month in which you can book a flight from Portsmouth to Japan (average of £300). Flying from Portsmouth to Japan in July is currently the most expensive (average of £657). 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

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 Japan

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Suvarnabhumi flights
Gatwick to Suvarnabhumi flights
Heathrow to Haneda flights
Stansted to Suvarnabhumi flights
London City to Suvarnabhumi flights
Heathrow to Narita flights
Heathrow to New Delhi flights
Gatwick to Haneda flights
Gatwick to Narita flights
Heathrow to Hong Kong flights
Stansted to Narita flights
Heathrow to Colombo flights
Heathrow to Kuala Lumpur Intl flights
London City to Haneda flights
Heathrow to Manila flights
Manchester to Suvarnabhumi flights
London City to Narita flights
Stansted to Haneda flights
Heathrow to Don Mueang Intl flights
Heathrow to Mumbai flights
Heathrow to Incheon Intl flights
Luton to Suvarnabhumi flights
Manchester to Islamabad flights
Heathrow to Islamabad flights
Heathrow to Taiwan Taoyuan Intl flights
Heathrow to Lahore flights
Gatwick to Manila flights
Heathrow to Singapore flights
Heathrow to Phuket City flights
Heathrow to Hongqiao Intl flights
Stansted to Manila flights
London City to Manila flights
Gatwick to New Delhi flights
Stansted to New Delhi flights
Gatwick to Hong Kong flights
Gatwick to Colombo flights
Stansted to Colombo flights
Gatwick to Kuala Lumpur Intl flights
Stansted to Hong Kong flights
London City to Hong Kong flights
Gatwick to Lahore flights
Heathrow to Hanoi flights
Gatwick to Singapore flights
Gatwick to Phuket City flights
Heathrow to Denpasar flights
Gatwick to Islamabad flights
Stansted to Islamabad flights
Stansted to Lahore flights
Stansted to Kuala Lumpur Intl flights
Luton to Narita flights

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 31 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest£368Average£1,009FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
China SouthernCheapest£420Average£542FlexibilityNo cancel feeOn-time69%
Search China Southern flights
FinnairCheapest£434Average£1,070FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Shenzhen AirlinesCheapest£521Average£675FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Air IndiaCheapest£579Average£644FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest£637Average£960FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
SWISSCheapest£662Average£871FlexibilityNo cancel feeOn-time79%
Search SWISS flights
KLMCheapest£670Average£964FlexibilityNo cancel feeOn-time75%
Search KLM flights
ANACheapest£675Average£1,084FlexibilityNo cancel feeOn-time80%
Search ANA flights
Scandinavian AirlinesCheapest£694Average£951FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.