Find flights
When to book
FAQs

Cheap flights from Portsmouth to Istanbul from £134

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 26/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IST
17 May — 24 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Istanbul

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Istanbul
Explore the most affordable flight options available from Portsmouth to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2026.

Wed 27/517:20
SOU
-
IST
1 stop6h 00m
KLM
Wed 3/606:00
IST
-
SOU
1 stop12h 50m
KLM
Deal found 12/4£238
Sun 26/420:00
SOU
-
SAW
1 stop22h 25m
Multiple Airlines
Sun 10/521:10
SAW
-
SOU
2 stops16h 55m
Multiple Airlines
Deal found 12/4£263
Wed 27/509:20
SOU
-
IST
2 stops16h 20m
Multiple Airlines
Wed 3/606:45
IST
-
SOU
1 stop10h 15m
Multiple Airlines
Deal found 12/4£268
Tue 21/417:20
SOU
-
IST
1 stop6h 00m
KLM
Tue 28/406:00
IST
-
SOU
1 stop12h 50m
KLM
Deal found 14/4£273
Fri 29/517:20
SOU
-
IST
1 stop6h 00m
KLM
Fri 5/617:20
IST
-
SOU
1 stop17h 25m
KLM
Deal found 14/4£303
Sun 26/409:15
SOU
-
IST
1 stop14h 05m
KLM
Sun 10/506:00
IST
-
SOU
1 stop28h 35m
KLM
Deal found 12/4£337
Tue 21/418:10
SOU
-
IST
2 stops23h 20m
Multiple Airlines
Tue 28/413:25
IST
-
SOU
1 stop20h 40m
Multiple Airlines
Deal found 14/4£352
Fri 29/506:50
SOU
-
IST
1 stop8h 00m
Multiple Airlines
Fri 5/613:50
IST
-
SOU
2 stops19h 30m
Multiple Airlines
Deal found 14/4£382
Tue 21/406:50
SOU
-
SAW
1 stop9h 10m
Multiple Airlines
Tue 28/418:35
SAW
-
SOU
2 stops22h 25m
Multiple Airlines
Deal found 14/4£403
Sun 26/414:50
SOU
-
IST
1 stop12h 40m
Multiple Airlines
Sun 10/520:15
IST
-
SOU
2 stops17h 50m
Multiple Airlines
Deal found 12/4£421
Tue 15/912:35
SOU
-
IST
2 stops27h 50m
British Airways
Sun 27/915:40
IST
-
SOU
2 stops19h 45m
British Airways
Deal found 13/4£452
Sun 31/514:50
SOU
-
IST
1 stop12h 40m
Multiple Airlines
Sun 7/620:15
IST
-
SOU
2 stops17h 50m
Multiple Airlines
Deal found 16/4£459

Find flight deals from Portsmouth to Istanbul

Keep the following information in mind while searching for Portsmouth to Istanbul flight deals. Data was last updated 17 April 2026.

Round-trip from

£238

One-way from

£134

Popular in

August

Cheapest in

January

Average price

£168
KLM
  • KLM
  • 27/5-3/6
  • 2 total stops
  • 18h 50m total
  • Portsmouth to Istanbul
Search Deals
26/4
  • 26/4
  • 2 total stops
  • 32h 10m total
  • Portsmouth to Istanbul
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£37 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Istanbul 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 17 April 2026.
Use the filters below to find and compare flights from Portsmouth to Istanbul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SouthamptonIstanbul

SOU - IST

SOUIST

Southampton Eastleigh

Wed 27/5

17:20-01:20

1 stop6h 00m

Istanbul

Wed 3/6

06:00-16:50

1 stop12h 50m

£238

SouthamptonIstanbul

SOU - SAW

SOUSAW

Southampton Eastleigh

Mon 18/5

19:20-21:00

2 stops23h 40m

Istanbul Sabiha Gokcen

Thu 21/5

10:20-16:50

1 stop8h 30m

£269

SouthamptonIstanbul

SOU - SAW

SOUSAW

Southampton Eastleigh

Tue 19/5

19:30-18:00

2 stops20h 30m

Istanbul Sabiha Gokcen

Thu 21/5

10:20-16:50

1 stop8h 30m

£320

SouthamptonIstanbul

SOU - IST

SOUIST

Southampton Eastleigh

Thu 24/9

12:35-00:25

2 stops9h 50m

Istanbul

Sun 27/9

15:40-09:25

2 stops19h 45m

£452

SouthamptonIstanbul

SOU - IST

SOUIST

Southampton Eastleigh

Tue 6/10

12:35-00:25

2 stops9h 50m

Istanbul

Fri 9/10

13:20-11:45

2 stops24h 25m

£460

SouthamptonIstanbul

SOU - IST

SOUIST

Southampton Eastleigh

Sat 20/6

19:40-00:25

2 stops50h 45m

Istanbul

Tue 23/6

19:55-12:55

2 stops19h 00m

£470

SouthamptonIstanbul

SOU - IST

SOUIST

Southampton Eastleigh

Tue 19/5

06:50-00:25

2 stops15h 35m

Istanbul

Wed 20/5

15:45-09:25

2 stops19h 40m

£481

SouthamptonIstanbul

SOU - IST

SOUIST

Southampton Eastleigh

Fri 5/6

06:50-00:40

2 stops15h 50m

Istanbul

Sat 27/6

19:55-17:40

2 stops47h 45m

£483

SouthamptonIstanbul

SOU - IST

SOUIST

Southampton Eastleigh

Mon 8/6

06:50-00:25

2 stops15h 35m

Istanbul

Sat 27/6

19:55-20:45

2 stops50h 50m

£486

SouthamptonIstanbul

SOU - IST

SOUIST

Southampton Eastleigh

Fri 7/8

06:50-12:05

2 stops27h 15m

Istanbul

Thu 10/9

13:10-09:25

2 stops22h 15m

£508

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 28 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Portsmouth to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul 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 Istanbul

What is the cheapest time of day to fly from P0R to IST?

Find hourly flight availability from Portsmouth to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 April 2026.

It’s typically best to fly out from Portsmouth to Istanbul in the evening. Doing so could potentially save you 25% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly return from Portsmouth to Istanbul. Price data was last updated on 11 April 2026.

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

Weekly flight availability from Portsmouth to Istanbul

Explore weekly flight availability from Portsmouth to Istanbul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 April 2026.

The most flights from P0R to TR5 are scheduled on a Thursday (42 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (20 on average).

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Istanbul. 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 Istanbul?

    Airlines like KLM and British Airways fly from Portsmouth to Istanbul in about 6h. The time it takes to get you to your destination can typically vary by up to 3h 50m. Portsmouth and Istanbul are separated by a distance of 1573 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Portsmouth to Istanbul?

    Consider Icelandair (98%), Avianca (93%) or Turkish Airlines (91%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to Istanbul.

  • What are the cheapest flights from Portsmouth to Istanbul?

    Looking for the cheapest flight from Portsmouth to Istanbul? While on average our users pay £899, our data indicates the cheapest price to be £120. The most popular route (Southampton Eastleigh - Istanbul), is priced around £299.

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

    Yes. In addition to deals on Portsmouth to Istanbul flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to Istanbul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Istanbul.

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

    Yes. Cheapflights offers flight deals from Portsmouth to Istanbul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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 Istanbul

See prices for flight routes from nearby airports that may be better suited for you.
Stansted to Istanbul flights
Heathrow to Istanbul flights
London City to Istanbul flights
Heathrow to Sabiha Gokcen flights
Stansted to Sabiha Gokcen flights
Manchester to Istanbul flights
Gatwick to Istanbul flights
London City to Sabiha Gokcen flights
Gatwick to Sabiha Gokcen flights
Stansted to Antalya flights
Luton to Sabiha Gokcen flights
Luton to Istanbul flights
Southend to Istanbul flights
Manchester to Sabiha Gokcen flights
Birmingham to Istanbul flights
Heathrow to Antalya flights
Gatwick to Antalya flights
Luton to Antalya flights
Stansted to Dalaman flights
Heathrow to Dalaman flights
Manchester to Dalaman flights
Southend to Sabiha Gokcen flights
Gatwick to Dalaman flights
Manchester to Antalya flights
London City to Antalya flights
Birmingham to Sabiha Gokcen flights
Luton to Dalaman flights
Stansted to Izmir flights
Birmingham to Dalaman flights
Gatwick to Bodrum flights
Birmingham to Antalya flights
Edinburgh to Istanbul flights
Heathrow to Izmir flights
Heathrow to Bodrum flights
Stansted to Bodrum flights
Edinburgh to Sabiha Gokcen flights
Bristol to Dalaman flights
Stansted to Ankara flights
Luton to Bodrum flights
Gatwick to Izmir flights
Manchester to Izmir flights
Southend to Antalya flights
Newcastle upon Tyne to Antalya flights
Luton to Izmir flights
Edinburgh to Antalya flights
Newcastle upon Tyne to Dalaman flights
Bristol to Antalya flights
Liverpool to Antalya flights
Edinburgh to Dalaman flights
London City to Izmir flights

Top 10 airlines flying from Portsmouth to Istanbul

Discover the top 10 airlines that operate flights from Portsmouth to Istanbul. 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 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
AjetCheapest£34Average£150FlexibilityNo cancel feeOn-timeN/A
Search Ajet flights
Pegasus AirlinesCheapest£40Average£141FlexibilityNo cancel feeOn-time82%
Search Pegasus Airlines flights
Wizz AirCheapest£52Average£138FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
Aegean AirlinesCheapest£92Average£239FlexibilityNo cancel feeOn-time87%
Search Aegean Airlines flights
Air SerbiaCheapest£95Average£174FlexibilityNo cancel feeOn-timeN/A
Search Air Serbia flights
KM Malta AirlinesCheapest£125Average£169FlexibilityNo cancel feeOn-time86%
Search KM Malta Airlines flights
Turkish AirlinesCheapest£127Average£227FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
British AirwaysCheapest£140Average£249FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£145Average£208FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£152Average£363FlexibilityNo cancel feeOn-time75%
Search KLM 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 Istanbul?

Deals for Portsmouth to Istanbul flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portsmouth to Istanbul for you. Better yet — we are completely free to use.

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

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

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

Not ready to book yet? You can track prices for flights from Portsmouth to Istanbul on Cheapflights with our Price Alert feature and get notified when better prices are available.

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.