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Cheap flights from Portsmouth to Iceland from £314

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — KEF
4 May — 11 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Iceland

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Iceland
Explore the most affordable flight options available from Portsmouth to Iceland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 April 2026.

Sun 17/509:15
SOU
-
KEF
1 stop23h 20m
KLM
Sun 24/520:10
KEF
-
SOU
1 stop11h 25m
KLM
Deal found 2/4£314
Fri 1/508:55
SOU
-
KEF
2 stops23h 55m
Multiple Airlines
Fri 8/517:45
KEF
-
SOU
3 stops38h 00m
Multiple Airlines
Deal found 3/4£337
Tue 19/513:25
SOU
-
KEF
2 stops19h 55m
Multiple Airlines
Tue 26/509:25
KEF
-
SOU
2 stops21h 40m
Multiple Airlines
Deal found 4/4£340
Mon 18/519:20
SOU
-
KEF
2 stops39h 35m
Multiple Airlines
Mon 25/508:00
KEF
-
SOU
1 stop24h 25m
Multiple Airlines
Deal found 3/4£365
Fri 15/509:20
SOU
-
KEF
2 stops23h 30m
Multiple Airlines
Fri 22/508:35
KEF
-
SOU
1 stop7h 15m
Multiple Airlines
Deal found 31/3£366

Find flight deals from Portsmouth to Iceland

Keep the following information in mind while searching for Portsmouth to Iceland flight deals. Data was last updated 4 April 2026.

Round-trip from

£314

Popular in

July

Cheapest in

January

Average price

£152
KLM
  • KLM
  • 17/5-24/5
  • 2 total stops
  • 34h 45m total
  • Portsmouth to Iceland
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£8 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 Iceland 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 4 April 2026.
Use the filters below to find and compare flights from Portsmouth to Iceland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Mon 18/5

19:20-09:55

2 stops39h 35m

Reykjavik Keflavik Intl

Mon 25/5

08:00-09:25

1 stop24h 25m

£365
Fastest return journey

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Fri 15/5

09:20-07:50

2 stops23h 30m

Reykjavik Keflavik Intl

Fri 22/5

08:35-16:50

1 stop7h 15m

£366

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Fri 1/5

06:50-19:15

3 stops37h 25m

Reykjavik Keflavik Intl

Fri 8/5

09:05-07:20

3 stops21h 15m

£399

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Sat 30/5

06:50-09:30

2 stops27h 40m

Reykjavik Keflavik Intl

Thu 11/6

10:40-19:00

2 stops31h 20m

£585

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Tue 2/6

19:55-09:40

2 stops38h 45m

Reykjavik Keflavik Intl

Wed 10/6

11:00-09:25

2 stops21h 25m

£598

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Mon 1/6

19:55-10:00

2 stops39h 05m

Reykjavik Keflavik Intl

Tue 9/6

10:50-08:25

2 stops20h 35m

£620

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Tue 2/6

19:55-09:40

2 stops38h 45m

Reykjavik Keflavik Intl

Thu 11/6

10:40-19:00

2 stops31h 20m

£626

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Sun 31/5

20:45-09:55

2 stops38h 10m

Reykjavik Keflavik Intl

Wed 10/6

11:00-09:25

2 stops21h 25m

£632
Cheapest one-way
Fastest single journey

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Mon 27/7

15:15-09:55

2 stops19h 40m

£344

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Tue 21/7

15:15-10:00

2 stops19h 45m

£355

Flights are sorted by cheapest return flights first.

Deals found on 4/4

Sorted by cheapest first

Best time to book a flight from Portsmouth to Iceland

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

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

Currently, January is the cheapest month in which you can book a flight from Portsmouth to Iceland (average of £51). Flying from Portsmouth to Iceland in July is currently the most expensive (average of £222). 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 IS?

Find hourly flight availability from Portsmouth to Iceland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 April 2026.

One of the essential ways to save on airfare from Portsmouth to Iceland is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the afternoon could potentially save you up to 26% on airfare.

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

Use this chart to determine the cheapest time to fly return from Portsmouth to Iceland. Price data was last updated on 4 April 2026.

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

Weekly flight availability from Portsmouth to Iceland

Explore weekly flight availability from Portsmouth to Iceland. 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 4 April 2026.

The most flights from P0R to IS0 are scheduled on a Friday (15 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (6 on average).

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Iceland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    The top 3 most reliable airlines when flying from Portsmouth to Iceland are TAP AIR PORTUGAL (93%), Turkish Airlines (88%) and Icelandair (87%).

  • What are the cheapest flights from Portsmouth to Iceland?

    Looking for the cheapest flight from Portsmouth to Iceland? While on average our users pay £738, our data indicates the cheapest price to be £166. The most popular route (Southampton Eastleigh - Reykjavik Keflavik Intl), is priced around £337.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Iceland 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 Iceland?

    Currently, January is the cheapest month in which you can book a flight from Portsmouth to Iceland (average of £51). Flying from Portsmouth to Iceland in July is currently the most expensive (average of £222). 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

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Alternative routes for Portsmouth to Iceland

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Top 5 airlines flying from Portsmouth to Iceland

Discover the top 5 airlines that operate flights from Portsmouth to Iceland. 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 4 April 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£49Average£120FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£121Average£241FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£121Average£268FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
PLAYCheapest£129Average£241FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
Scandinavian AirlinesCheapest£158Average£336FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines 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 Iceland?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Portsmouth to Iceland. 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 Iceland?

Cheapflights simply makes it quick and affordable to book flights from Portsmouth to Iceland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Portsmouth to Iceland with no change fees.

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

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

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