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Cheap flights from Portsmouth to Osaka from £1,007

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OSA
16 Mar — 23 Mar1
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 14 February 2026.

Sat 4/706:50
SOU
-
KIX
2 stops21h 55m
Multiple Airlines
Sun 19/714:20
KIX
-
SOU
2 stops38h 25m
Multiple Airlines
Deal found 12/2£1,007
Fri 13/317:35
SOU
-
KIX
3 stops34h 00m
Multiple Airlines
Fri 20/317:50
KIX
-
SOU
3 stops32h 10m
Multiple Airlines
Deal found 13/2£1,132
Mon 9/309:30
SOU
-
KIX
2 stops21h 55m
Qatar Airways
Thu 12/317:55
KIX
-
SOU
2 stops34h 45m
Qatar Airways
Deal found 13/2£1,209
Fri 24/709:10
SOU
-
KIX
3 stops29h 30m
Multiple Airlines
Wed 19/818:15
KIX
-
SOU
3 stops31h 25m
Multiple Airlines
Deal found 13/2£1,256
Sun 29/320:45
SOU
-
KIX
3 stops30h 55m
Multiple Airlines
Sun 5/412:20
KIX
-
SOU
3 stops40h 25m
Multiple Airlines
Deal found 12/2£1,283
Tue 31/309:10
SOU
-
KIX
3 stops28h 00m
Multiple Airlines
Tue 7/422:25
KIX
-
SOU
3 stops29h 05m
Multiple Airlines
Deal found 13/2£1,354
Sat 4/709:15
SOU
-
KIX
1 stop17h 00m
KLM
Sun 19/711:55
KIX
-
SOU
1 stop28h 50m
KLM
Deal found 11/2£1,369

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 14 February 2026.

Round-trip from

£1,007

Popular in

July

Cheapest in

January

Average price

£572
4/7-19/7
  • 4/7-19/7
  • 4 total stops
  • 60h 20m total
  • Portsmouth to Osaka
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£106 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 14 February 2026.
Use the filters below to find and compare flights from Portsmouth to Osaka that are best for you.

Fly from

Portsmouth

Fly to

Osaka

Route

Depart

Return

Price

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Sat 4/7

06:50-12:45

2 stops21h 55m

Osaka Kansai Intl

Sun 19/7

14:20-20:45

2 stops38h 25m

£1,007

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Fri 13/3

17:35-12:35

3 stops34h 00m

Osaka Kansai Intl

Fri 20/3

17:50-17:00

3 stops32h 10m

£1,132

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Mon 9/3

09:30-16:25

2 stops21h 55m

Osaka Kansai Intl

Thu 12/3

17:55-19:40

2 stops34h 45m

£1,209

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Fri 24/7

09:10-22:40

3 stops29h 30m

Osaka Kansai Intl

Wed 19/8

18:15-17:40

3 stops31h 25m

£1,256

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Sun 29/3

20:45-11:40

3 stops30h 55m

Osaka Kansai Intl

Sun 5/4

12:20-20:45

3 stops40h 25m

£1,283

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Tue 31/3

09:10-21:10

3 stops28h 00m

Osaka Kansai Intl

Tue 7/4

22:25-19:30

3 stops29h 05m

£1,354

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Sat 4/7

09:15-10:15

1 stop17h 00m

Osaka Kansai Intl

Sun 19/7

11:55-08:45

1 stop28h 50m

£1,372

SouthamptonOsaka

SOU - KIX

SOUKIX

Southampton Eastleigh

Wed 25/3

12:25-16:25

2 stops43h 00m

£1,425

Flights are sorted by cheapest return flights first.

Deals found on 11/2

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

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

Currently, March is the cheapest month in which you can book a flight from Portsmouth to Osaka (average of £302). Flying from Portsmouth to Osaka in July is currently the most expensive (average of £717). 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 OSA?

Find hourly flight availability from Portsmouth to Osaka. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 February 2026.

A simple way to save on the total cost of your ticket is to fly from Portsmouth to Osaka in the evening. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight in the morning.

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 14 February 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
7.7
Good
1,454 reviews
Check prices

Overall

7.7

Boarding

7.8

Food

7.3

Crew

8.4

Comfort

7.6

Entertainment

7.1

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
1,454 reviews
KLM
7.7
Good
1,454 reviews
Check prices

Overall

7.7

Boarding

7.8

Food

7.3

Crew

8.4

Comfort

7.6

Entertainment

7.1

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 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?

    Qatar Airways can get you from Portsmouth to Osaka in just under 21h 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.

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

    Currently, March is the cheapest month in which you can book a flight from Portsmouth to Osaka (average of £302). Flying from Portsmouth to Osaka in July is currently the most expensive (average of £717). 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.

Top 10 airlines flying from Portsmouth to Osaka

Discover the top 10 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 14 February 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£377Average£594FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£424Average£539FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£451Average£648FlexibilityNo cancel feeOn-time67%
Search Air China flights
Cathay PacificCheapest£675Average£876FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Asiana AirlinesCheapest£743Average£1,037FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Thai AirwaysCheapest£768Average£1,119FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
KLMCheapest£773Average£1,136FlexibilityNo cancel feeOn-time75%
Search KLM flights
Etihad AirwaysCheapest£789Average£1,139FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Japan AirlinesCheapest£817Average£1,220FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
EmiratesCheapest£868Average£1,176FlexibilityNo cancel feeOn-time75%
Search Emirates 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 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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