How long is the flight from Portsmouth to Japan?

KLM and Qatar Airways can get you from Portsmouth to Japan in just under 16h 55m. Your travel time can differ by up to 13h 35m. There are 5970 mi between Portsmouth and Japan. Both multi-stop and direct flights can be found to your destination and back.

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.

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).

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.

£372+ Flights from Portsmouth to Japan

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 16 December 2025.

Mon 15/1208:40SOU - NRT

1 stop18h 05mKLM

Mon 22/1213:35NRT - SOU

1 stop27h 35mKLM

Deal found 14/12£914

Mon 15/1208:40SOU - HND

2 stops38h 30mMultiple Airlines

Mon 22/1214:45HND - SOU

2 stops50h 25mMultiple Airlines

Deal found 14/12£1,074

Mon 15/1219:55SOU - NRT

2 stops31h 05mMultiple Airlines

Mon 22/1208:55NRT - SOU

3 stops38h 25mMultiple Airlines

Deal found 14/12£1,247

Thu 18/1208:50SOU - NRT

1 stop17h 55mKLM

Thu 25/1213:35NRT - SOU

1 stop27h 30mKLM

Deal found 13/12£1,406

Thu 18/1208:50SOU - NRT

3 stops25h 50mMultiple Airlines

Thu 25/1212:10NRT - SOU

2 stops28h 30mMultiple Airlines

Deal found 13/12£1,635

Sat 20/1217:30SOU - NRT

1 stop33h 15mKLM

Sat 27/1213:35NRT - SOU

1 stop28h 15mKLM

Deal found 14/12£1,637

Thu 18/1208:50SOU - HND

2 stops25h 35mKLM

Thu 25/1221:30HND - SOU

2 stops28h 30mKLM

Deal found 13/12£1,681

Thu 18/1208:50SOU - HND

3 stops25h 35mMultiple Airlines

Thu 25/1221:30HND - SOU

2 stops27h 05mMultiple Airlines

Deal found 13/12£1,912

Sat 20/1209:25SOU - NRT

2 stops24h 05mMultiple Airlines

Sat 27/1211:15NRT - SOU

3 stops30h 35mMultiple Airlines

Deal found 14/12£1,924

Sat 20/1217:30SOU - HND

2 stops22h 30mMultiple Airlines

Fri 26/1201:30HND - SOU

3 stops40h 20mMultiple Airlines

Deal found 14/12£2,185

Mon 15/1220:10SOU - HND

2 stops43h 50mQatar Airways

Mon 22/1223:30HND - SOU

2 stops29h 10mQatar Airways

Deal found 14/12£2,279

Best flights from Portsmouth to Japan
Discover carefully curated flight deals from Portsmouth to Japan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 December 2025.

Wed 28/112:00SOU - KIX

2 stops39h 35mMultiple Airlines

Wed 4/214:35KIX - SOU

2 stops35h 55mMultiple Airlines

Deal found 14/12£686

Wed 28/109:25SOU - KIX

1 stop16h 55mKLM

Wed 4/212:45KIX - SOU

2 stops28h 40mKLM

Deal found 14/12£896

Sat 17/109:30SOU - HND

2 stops30h 30mQatar Airways

Wed 21/123:30HND - SOU

2 stops29h 10mQatar Airways

Deal found 12/12£1,136

Wed 28/109:25SOU - HND

3 stops27h 05mMultiple Airlines

Wed 4/208:30HND - SOU

3 stops32h 55mMultiple Airlines

Deal found 14/12£782

Wed 28/109:25SOU - CTS

2 stops21h 50mMultiple Airlines

Wed 4/220:20CTS - SOU

2 stops45h 05mMultiple Airlines

Deal found 14/12£867

Sun 1/309:30SOU - NRT

1 stop17h 15mKLM

Sun 15/313:35NRT - SOU

1 stop27h 45mKLM

Deal found 13/12£1,089

Sat 17/109:30SOU - NRT

2 stops23h 25mQatar Airways

Wed 21/116:55NRT - SOU

2 stops35h 45mQatar Airways

Deal found 14/12£1,136

Thu 29/109:30SOU - KIX

3 stops25h 40mMultiple Airlines

Thu 5/213:30KIX - SOU

3 stops35h 05mMultiple Airlines

Deal found 15/12£946

Tue 3/212:25SOU - NRT

2 stops38h 30mQatar Airways

Sun 8/216:55NRT - SOU

2 stops35h 45mQatar Airways

Deal found 15/12£1,138

Sat 10/115:25SOU - HND

2 stops34h 55mMultiple Airlines

Sat 17/113:20HND - SOU

2 stops34h 25mMultiple Airlines

Deal found 13/12£989

Fri 27/220:10SOU - HND

2 stops43h 50mQatar Airways

Mon 9/323:30HND - SOU

2 stops49h 05mQatar Airways

Deal found 15/12£1,139

Sun 1/309:30SOU - NRT

2 stops43h 15mMultiple Airlines

Sun 15/314:55NRT - SOU

2 stops50h 10mMultiple Airlines

Deal found 13/12£1,034

Sun 1/320:10SOU - NRT

2 stops30h 45mQatar Airways

Mon 9/316:55NRT - SOU

2 stops31h 40mQatar Airways

Deal found 14/12£1,151

Tue 3/212:25SOU - NRT

2 stops38h 30mQatar Airways

Sat 7/216:55NRT - SOU

2 stops31h 40mQatar Airways

Deal found 13/12£1,187

Tue 13/112:25SOU - HND

2 stops27h 35mMultiple Airlines

Tue 20/123:30HND - SOU

2 stops25h 30mMultiple Airlines

Deal found 14/12£1,146

Sat 28/209:30SOU - HND

2 stops30h 30mQatar Airways

Sun 8/323:30HND - SOU

2 stops49h 05mQatar Airways

Deal found 15/12£1,213

Mon 2/320:10SOU - NRT

2 stops30h 45mQatar Airways

Wed 18/316:55NRT - SOU

2 stops31h 40mQatar Airways

Deal found 15/12£1,250

Mon 2/320:10SOU - NRT

2 stops30h 45mQatar Airways

Mon 16/316:55NRT - SOU

2 stops31h 40mQatar Airways

Deal found 15/12£1,250

Tue 3/212:25SOU - HND

2 stops27h 35mMultiple Airlines

Sun 8/223:30HND - SOU

2 stops25h 35mMultiple Airlines

Deal found 15/12£1,377

Tue 3/312:25SOU - NRT

2 stops38h 30mQatar Airways

Wed 18/321:55NRT - SOU

2 stops30h 45mQatar Airways

Deal found 15/12£1,252

Mon 5/109:25SOU - HND

3 stops30h 30mMultiple Airlines

Sat 10/115:25HND - SOU

3 stops33h 10mMultiple Airlines

Deal found 14/12£1,388

Tue 3/312:25SOU - NRT

2 stops38h 30mQatar Airways

Tue 17/316:55NRT - SOU

2 stops31h 40mQatar Airways

Deal found 15/12£1,252

Tue 3/220:30SOU - KIX

2 stops34h 55mMultiple Airlines

Sat 7/218:05KIX - SOU

3 stops34h 35mMultiple Airlines

Deal found 13/12£1,590

Sun 18/109:30SOU - KIX

2 stops21h 55mQatar Airways

Thu 22/117:55KIX - SOU

2 stops30h 40mQatar Airways

Deal found 13/12£1,362

Thu 8/109:30SOU - HND

2 stops30h 30mQatar Airways

Wed 14/123:30HND - SOU

2 stops49h 05mQatar Airways

Deal found 15/12£1,394

Last-minute flights from Portsmouth to Japan
Discover last-minute flight deals from Portsmouth to Japan. Data last updated 16 December 2025 and is based on user searches.

Mon 15/1208:40SOU - NRT

1 stop18h 05mKLM

Mon 22/1213:35NRT - SOU

1 stop27h 35mKLM

Deal found 14/12£914

Mon 5/114:35SOU - HND

2 stops38h 30mMultiple Airlines

Sat 10/115:05HND - SOU

2 stops49h 50mMultiple Airlines

Deal found 14/12£722

Sat 10/117:15SOU - NRT

2 stops33h 40mMultiple Airlines

Sat 17/113:55NRT - SOU

2 stops36h 50mMultiple Airlines

Deal found 13/12£676

Sat 10/109:25SOU - NRT

1 stop17h 20mKLM

Sat 17/113:35NRT - SOU

1 stop36h 40mKLM

Deal found 13/12£937

Wed 28/112:00SOU - KIX

2 stops39h 35mMultiple Airlines

Wed 4/214:35KIX - SOU

2 stops35h 55mMultiple Airlines

Deal found 14/12£686

Wed 28/109:25SOU - HND

3 stops27h 05mMultiple Airlines

Wed 4/208:30HND - SOU

3 stops32h 55mMultiple Airlines

Deal found 14/12£782

Wed 28/109:25SOU - CTS

2 stops21h 50mMultiple Airlines

Wed 4/220:20CTS - SOU

2 stops45h 05mMultiple Airlines

Deal found 14/12£867

Wed 28/109:25SOU - KIX

1 stop16h 55mKLM

Wed 4/212:45KIX - SOU

2 stops28h 40mKLM

Deal found 14/12£896

Thu 29/109:00SOU - NRT

1 stop17h 45mKLM

Thu 5/213:35NRT - SOU

1 stop27h 50mKLM

Deal found 15/12£776

Thu 29/109:00SOU - HND

3 stops25h 50mMultiple Airlines

Thu 5/208:30HND - SOU

3 stops32h 55mMultiple Airlines

Deal found 15/12£805

Thu 29/117:35SOU - NRT

2 stops37h 10mMultiple Airlines

Thu 5/213:35NRT - SOU

1 stop27h 50mMultiple Airlines

Deal found 15/12£829

Thu 29/115:00SOU - KIX

2 stops36h 35mMultiple Airlines

Thu 5/214:35KIX - SOU

2 stops38h 30mMultiple Airlines

Deal found 15/12£884

One-way flights from Portsmouth to Japan
Search for one-way flight options from Portsmouth to Japan. Find affordable one-way fares based on user searches. Data last updated 16 December 2025.

Tue 3/215:20SOU - NRT

3 stops59h 40mMultiple Airlines

Deal found 14/12£372

Tue 3/215:00SOU - HND

2 stops49h 05mMultiple Airlines

Deal found 14/12£396

Tue 3/209:25SOU - NRT

1 stop17h 20mKLM

Deal found 14/12£639

Mon 2/220:10SOU - NRT

2 stops30h 45mQatar Airways

Deal found 15/12£835

Mon 2/209:30SOU - HND

2 stops30h 30mQatar Airways

Deal found 15/12£835

Tue 3/212:25SOU - NRT

2 stops38h 30mQatar Airways

Deal found 15/12£837

Tue 31/320:00SOU - HND

2 stops43h 55mQatar Airways

Deal found 14/12£838

Wed 18/312:25SOU - NRT

2 stops38h 30mQatar Airways

Deal found 15/12£879

Wed 18/312:25SOU - HND

2 stops51h 35mQatar Airways

Deal found 15/12£882

Tue 31/309:10SOU - NRT

2 stops26h 00mQatar Airways

Deal found 14/12£912

Tue 17/312:25SOU - NRT

2 stops44h 30mQatar Airways

Deal found 15/12£913

Tue 31/309:10SOU - KIX

2 stops24h 15mQatar Airways

Deal found 14/12£955

Find flight deals from Portsmouth to Japan

Round-trip from	£686
One-way from	£372
Popular in	August
Cheapest in	November
Average price	£901

28/1-4/2
4 total stops
75h 30m total
Portsmouth to Japan

Search Deals

3/2
3 total stops
59h 40m total
Portsmouth to Japan

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£120 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 December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Wed 28/1

12:00-12:35

2 stops39h 35m

Osaka Kansai Intl

Wed 4/2

14:35-17:30

2 stops35h 55m

£686

SouthamptonTokyo

SOU - HND

SOUHND

Southampton Eastleigh

Wed 28/1

09:25-21:30

3 stops27h 05m

Tokyo Haneda

Wed 4/2

08:30-08:25

3 stops32h 55m

£782

SouthamptonSapporo

SOU - CTS

SOUCTS

Southampton Eastleigh

Wed 28/1

09:25-16:15

2 stops21h 50m

Sapporo Chitose

Wed 4/2

20:20-08:25

2 stops45h 05m

£867

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Wed 28/1

09:25-11:20

1 stop16h 55m

Osaka Kansai Intl

Wed 4/2

12:45-08:25

2 stops28h 40m

£896

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Thu 29/1

09:30-20:10

3 stops25h 40m

Osaka Kansai Intl

Thu 5/2

13:30-15:35

3 stops35h 05m

£946

SouthamptonTokyo

SOU - HND

SOUHND

Southampton Eastleigh

Sat 10/1

15:25-11:20

2 stops34h 55m

Tokyo Haneda

Sat 17/1

13:20-14:45

2 stops34h 25m

£989

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Sun 1/3

09:30-13:45

2 stops43h 15m

Tokyo Narita

Sun 15/3

14:55-08:05

2 stops50h 10m

£1,034

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Sun 1/3

09:30-11:45

1 stop17h 15m

Tokyo Narita

Sun 15/3

13:35-08:20

1 stop27h 45m

£1,089

SouthamptonTokyo

SOU - HND

SOUHND

Southampton Eastleigh

Sat 17/1

09:30-01:00

2 stops30h 30m

Tokyo Haneda

Wed 21/1

23:30-19:40

2 stops29h 10m

£1,136

SouthamptonTokyo

SOU - NRT

SOUNRT

Southampton Eastleigh

Sat 17/1

09:30-17:55

2 stops23h 25m

Tokyo Narita

Wed 21/1

16:55-19:40

2 stops35h 45m

£1,136

Flights are sorted by cheapest return flights first.

Deals found on 14/12

Showing 1-10 of 52 results

...

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 £308). Flying from Portsmouth to Japan in July is currently the most expensive (average of £674). 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?

It’s optimal to fly from Portsmouth to Japan in the afternoon. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight at midday.

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

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

Reviews of airlines servicing Japan

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

1,432 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

KLM

7.7

Good

1,432 reviews

KLM

7.7

Good

1,432 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

How long is the flight from Portsmouth to Japan?
KLM and Qatar Airways can get you from Portsmouth to Japan in just under 16h 55m. Your travel time can differ by up to 13h 35m. There are 5970 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 £308). Flying from Portsmouth to Japan in July is currently the most expensive (average of £674). 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

Top 10 airlines flying from Portsmouth to Japan

Airline	Cheapest	Average	Flexibility	On-time
China Southern	Cheapest£371	Average£541	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
Finnair	Cheapest£446	Average£1,046	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Shenzhen Airlines	Cheapest£453	Average£594	FlexibilityNo cancel fee	On-time63%	Search Shenzhen Airlines flights
Air India	Cheapest£570	Average£653	FlexibilityNo cancel fee	On-timeN/A	Search Air India flights
Etihad Airways	Cheapest£655	Average£956	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
SWISS	Cheapest£680	Average£857	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
ANA	Cheapest£682	Average£1,024	FlexibilityNo cancel fee	On-time80%	Search ANA flights
KLM	Cheapest£688	Average£933	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Scandinavian Airlines	Cheapest£695	Average£977	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Lufthansa	Cheapest£724	Average£1,154	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

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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?

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Cheap flights from Portsmouth to Japan from £372

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to Japan

Cheapest flights from Portsmouth to JapanExplore 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 16 December 2025.

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 16 December 2025.

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 16 December 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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.

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?

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 16 December 2025.

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 16 December 2024.

Reviews of airlines servicing Japan

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.

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?

What are the most popular routes from Portsmouth to Japan?

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

How can I find direct flights from Portsmouth to Japan?

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

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

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.

Top 10 airlines flying from Portsmouth to Japan

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?

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

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

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

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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 16 December 2025.