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Cheap flights from Portsmouth to Istanbul from £154

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IST
21 Jun — 28 Jun1
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 22 May 2026.

Thu 10/917:20
SOU
-
IST
1 stop21h 00m
KLM
Sun 13/906:00
IST
-
SOU
1 stop28h 35m
KLM
Deal found 19/5£259
Mon 8/620:40
SOU
-
IST
2 stops17h 15m
Multiple Airlines
Thu 18/621:50
IST
-
SOU
1 stop12h 55m
Multiple Airlines
Deal found 17/5£261
Fri 19/617:20
SOU
-
IST
1 stop6h 00m
KLM
Sat 27/617:20
IST
-
SOU
1 stop17h 25m
KLM
Deal found 18/5£291
Mon 15/620:40
SOU
-
SAW
2 stops19h 40m
Multiple Airlines
Mon 22/610:20
SAW
-
SOU
1 stop11h 10m
Multiple Airlines
Deal found 18/5£301
Tue 16/617:20
SOU
-
IST
1 stop6h 00m
KLM
Mon 22/617:20
IST
-
SOU
1 stop17h 15m
KLM
Deal found 18/5£319
Thu 21/517:20
SOU
-
IST
1 stop6h 00m
KLM
Fri 29/506:00
IST
-
SOU
1 stop12h 50m
KLM
Deal found 18/5£322
Tue 16/614:25
SOU
-
SAW
2 stops23h 10m
Multiple Airlines
Mon 22/610:20
SAW
-
SOU
1 stop8h 30m
Multiple Airlines
Deal found 18/5£326
Thu 21/517:20
SOU
-
IST
1 stop6h 00m
KLM
Thu 28/517:20
IST
-
SOU
1 stop17h 15m
KLM
Deal found 18/5£328
Tue 9/614:25
SOU
-
SAW
2 stops23h 20m
Multiple Airlines
Sat 13/613:25
SAW
-
SOU
1 stop8h 05m
Multiple Airlines
Deal found 17/5£331
Tue 26/517:20
SOU
-
IST
1 stop6h 00m
KLM
Tue 2/617:20
IST
-
SOU
1 stop17h 15m
KLM
Deal found 21/5£344
Fri 19/606:45
SOU
-
SAW
1 stop9h 15m
Multiple Airlines
Sat 27/610:20
SAW
-
SOU
1 stop11h 10m
Multiple Airlines
Deal found 18/5£350
Mon 15/619:20
SOU
-
IST
1 stop22h 20m
Multiple Airlines
Mon 22/622:20
IST
-
SOU
1 stop17h 25m
Multiple Airlines
Deal found 18/5£354

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 22 May 2026.

Round-trip from

£259

One-way from

£154

Popular in

July

Cheapest in

January

Average price

£178
KLM
  • KLM
  • 10/9-13/9
  • 2 total stops
  • 49h 35m total
  • Portsmouth to Istanbul
Search Deals
1/6
  • 1/6
  • 2 total stops
  • 23h 45m total
  • Portsmouth to Istanbul
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£41 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 22 May 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

SouthamptonIstanbul

SOU - IST

SOUIST

Southampton Eastleigh

Thu 10/9

17:20-16:20

1 stop21h 00m

Istanbul

Sun 13/9

06:00-08:35

1 stop28h 35m

£259

SouthamptonIstanbul

SOU - IST

SOUIST

Southampton Eastleigh

Mon 8/6

19:20-20:15

1 stop22h 55m

Istanbul

Thu 18/6

21:50-08:45

1 stop12h 55m

£270

SouthamptonIstanbul

SOU - SAW

SOUSAW

Southampton Eastleigh

Mon 15/6

20:40-18:20

2 stops19h 40m

Istanbul Sabiha Gokcen

Mon 22/6

10:20-19:30

1 stop11h 10m

£301

SouthamptonIstanbul

SOU - SAW

SOUSAW

Southampton Eastleigh

Tue 16/6

14:25-15:35

2 stops23h 10m

Istanbul Sabiha Gokcen

Mon 22/6

10:20-16:50

1 stop8h 30m

£326

SouthamptonIstanbul

SOU - SAW

SOUSAW

Southampton Eastleigh

Tue 9/6

14:25-15:45

2 stops23h 20m

Istanbul Sabiha Gokcen

Sat 13/6

13:25-19:30

1 stop8h 05m

£331
Fastest return journey

SouthamptonIstanbul

SOU - SAW

SOUSAW

Southampton Eastleigh

Thu 18/6

11:40-05:00

2 stops15h 20m

Istanbul Sabiha Gokcen

Thu 25/6

10:20-19:30

1 stop11h 10m

£385

SouthamptonIstanbul

SOU - SAW

SOUSAW

Southampton Eastleigh

Fri 19/6

06:45-18:00

1 stop9h 15m

Istanbul Sabiha Gokcen

Sat 27/6

16:25-08:35

2 stops18h 10m

£395

SouthamptonIstanbul

SOU - SAW

SOUSAW

Southampton Eastleigh

Thu 10/9

17:20-21:00

1 stop25h 40m

Istanbul Sabiha Gokcen

Sun 13/9

14:40-08:35

1 stop19h 55m

£404

SouthamptonIstanbul

SOU - SAW

SOUSAW

Southampton Eastleigh

Tue 9/6

09:05-17:05

1 stop6h 00m

Istanbul Sabiha Gokcen

Sat 13/6

08:50-08:45

1 stop25h 55m

£413

SouthamptonIstanbul

SOU - IST

SOUIST

Southampton Eastleigh

Sun 26/7

09:20-03:05

2 stops15h 45m

Istanbul

Sat 1/8

06:45-18:10

1 stop13h 25m

£416

Flights are sorted by cheapest return flights first.

Deals found on 20/5

Showing 1-10 of 33 resultsSorted by cheapest first
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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 22 May 2026.

It’s typically best to fly out from Portsmouth to Istanbul at midday. Doing so could potentially save you 33% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 22 May 2026.

The most flights from P0R to TR5 are scheduled on a Thursday (39 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).

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 16 May 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.

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 fly from Portsmouth to Istanbul in about 21h. The time it takes to get you to your destination can typically vary by up to . Portsmouth and Istanbul are separated by a distance of 1573 mi.

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

    Consider Icelandair (93%), Avianca (90%) or American Airlines (89%) 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 £737, our data indicates the cheapest price to be £125. The most popular route (Southampton Eastleigh - Istanbul), is priced around £259.

  • 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

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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
Gatwick to Istanbul flights
London City to Istanbul flights
Stansted to Sabiha Gokcen flights
Luton to Istanbul flights
Manchester to Istanbul flights
Birmingham to Istanbul flights
Heathrow to Sabiha Gokcen flights
Gatwick to Sabiha Gokcen flights
London City to Sabiha Gokcen flights
Manchester to Sabiha Gokcen flights
Southend to Istanbul flights
Stansted to Antalya flights
Luton to Sabiha Gokcen flights
Gatwick to Antalya flights
Heathrow to Antalya flights
Luton to Antalya flights
Southend to Sabiha Gokcen flights
Manchester to Dalaman flights
Manchester to Antalya flights
Birmingham to Sabiha Gokcen flights
Stansted to Dalaman flights
Gatwick to Dalaman flights
Heathrow to Dalaman flights
Stansted to Izmir flights
Luton to Dalaman flights
London City to Antalya flights
Heathrow to Izmir flights
Birmingham to Antalya flights
Birmingham to Dalaman flights
Edinburgh to Istanbul flights
Gatwick to Bodrum flights
Edinburgh to Sabiha Gokcen flights
Luton to Izmir flights
Edinburgh to Antalya flights
Bristol to Istanbul flights
Liverpool to Dalaman flights
Heathrow to Bodrum flights
Bristol to Dalaman flights
Gatwick to Izmir flights
Southend to Antalya flights
Manchester to Izmir flights
Stansted to Bodrum flights
London City to Izmir flights
Bristol to Antalya flights
Bristol to Sabiha Gokcen flights
Leeds to Antalya flights
Leeds to Dalaman flights
Newcastle upon Tyne to Antalya 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 22 May 2026.
AirlineCheapestAverageFlexibilityOn-time
AjetCheapest£34Average£141FlexibilityNo cancel feeOn-timeN/A
Search Ajet flights
Pegasus AirlinesCheapest£39Average£179FlexibilityNo cancel feeOn-time82%
Search Pegasus Airlines flights
Wizz AirCheapest£53Average£138FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
Air FranceCheapest£91Average£179FlexibilityNo cancel feeOn-time77%
Search Air France flights
Aegean AirlinesCheapest£93Average£225FlexibilityNo cancel feeOn-time87%
Search Aegean Airlines flights
Air SerbiaCheapest£95Average£175FlexibilityNo cancel feeOn-timeN/A
Search Air Serbia flights
KM Malta AirlinesCheapest£126Average£170FlexibilityNo cancel feeOn-time86%
Search KM Malta Airlines flights
Turkish AirlinesCheapest£129Average£230FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
British AirwaysCheapest£144Average£250FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£151Average£346FlexibilityNo 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.

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