Find flights
Airlines

R19 317+ Cheap flights to Portsmouth

— LHR
Oct 21 — Oct 281
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Portsmouth

Sun 22/1113:45 -
2 stops31h 45m
Thu 26/119:20 -
2 stops28h 15m
Deal found 16/9R19 317
Sat 3/1020:55 -
2 stops47h 35m
Sun 11/1020:00 -
2 stops31h 00m
Deal found 18/9R24 728
Mon 14/129:15 -
2 stops60h 15m
Tue 5/119:55 -
2 stops30h 00m
Deal found 17/9R28 269
Sat 26/129:25 -
2 stops31h 05m
Wed 6/119:55 -
2 stops34h 45m
Deal found 19/9R29 309
Thu 15/1020:55 -
2 stops23h 35m
Thu 22/109:20 -
2 stops22h 50m
Deal found 20/9R36 604
Wed 23/920:55 -
2 stops23h 30m
Mon 19/109:20 -
2 stops22h 50m
Deal found 20/9R57 513
Tue 22/914:05 -
2 stops30h 20m
Wed 14/109:20 -
2 stops22h 50m
Deal found 19/9R60 405
Mon 21/920:55 -
2 stops23h 35m
Thu 15/1020:00 -
2 stops31h 00m
Deal found 19/9R83 346

Find flight deals to Portsmouth

Return from

R11 405

Popular in

July

Cheapest in

February

Average price

R13 111
RwandAir
  • RwandAir
  • 3/10-11/10
  • 2 total stops
  • 29h 50m total
  • Johannesburg to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (R1 224 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (R172 potential savings vs. average return price).
Search Deals
Average for return flights in September 2026
Search Deals

Cheapflights Fare Finder

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

Fly from

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

JohannesburgSouthampton

JNB Johannesburg OR Tambo - SOU Southampton Eastleigh

JNBSOU

Johannesburg OR Tambo

Sun 22/11

13:45-19:30

2 stops31h 45m

Southampton Eastleigh

Thu 26/11

9:20-15:35

2 stops28h 15m

R19 317

JohannesburgSouthampton

JNB Johannesburg OR Tambo - SOU Southampton Eastleigh

JNBSOU

Johannesburg OR Tambo

Sat 3/10

20:55-19:30

2 stops47h 35m

Southampton Eastleigh

Sun 11/10

20:00-4:00

2 stops31h 00m

R24 728

JohannesburgSouthampton

JNB Johannesburg OR Tambo - SOU Southampton Eastleigh

JNBSOU

Johannesburg OR Tambo

Mon 14/12

9:15-19:30

2 stops60h 15m

Southampton Eastleigh

Tue 5/1

19:55-3:55

2 stops30h 00m

R28 269

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Sorted by cheapest first

Best time to book a flight to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight to Portsmouth

How long is the flight to Portsmouth?

On average, a flight from Johannesburg to Portsmouth takes 23 hours 30 minutes. Flights to Portsmouth from other popular cities in South Africa will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to Portsmouth

The most flights from Johannesburg to Portsmouth are scheduled on a Monday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).

What are the most popular airlines that fly to Portsmouth?

The most popular airline flying from Johannesburg to Portsmouth is KLM.

KLM
KLM
From R10 702

What are the cheapest airlines that fly to Portsmouth?

The cheapest airline flying from Johannesburg to Portsmouth is KLM.

Rainfall in Portsmouth by month

In terms of precipitation, rainfall in Portsmouth ranges from 25.0 - 76.0 mm per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Portsmouth when rainfall is around 25.0 mm.

Temperature in Portsmouth by month

If weather is an important factor for your trip to Portsmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Portsmouth

Read through reviews of airlines serving the United Kingdom, such as KLM. 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
1 575 reviews
Check prices

Crew

8,4

Food

7,3

Comfort

7,7

Boarding

7,8

Overall

7,8

Entertainment

7,2

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
1 575 reviews
KLM
7,8
Good
1 575 reviews
Check prices

Crew

8,4

Food

7,3

Comfort

7,7

Boarding

7,8

Overall

7,8

Entertainment

7,2

Reviews

1 / 20
6,0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

FAQs about flying to Portsmouth

  • Can I find cheaper flights to Portsmouth if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Portsmouth on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Portsmouth?

    Based on reviews from Cheapflights users, Norse Atlantic UK is rated the highest out of the airlines that fly to Portsmouth.

  • How much is a return flight to Portsmouth?

    A return flight to Portsmouth will typically cost around R11 650, however they can be found for as little as R1 739.

  • Does London Heathrow have car hire?

    Yes. Those touching down at London Heathrow can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to London Heathrow?

    Yes. London Heathrow has hotels nearby for those requiring accommodations. Aerotel London Heathrow is the closest property to London Heathrow (0,0 km away from London Heathrow).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Search flights to Portsmouth by cabin class

First Class flights to Portsmouth
Business Class flights to Portsmouth
Prem Economy Class flights to Portsmouth
Economy Class flights to Portsmouth

Fly with Cheapflights

How does Cheapflights help users find flights to Portsmouth?

Cheapflights makes it easy to find Portsmouth flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals to Portsmouth for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights to Portsmouth with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights to Portsmouth, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Portsmouth flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the 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.