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Cheap flights from Portsmouth to Reykjavik Keflavik Intl Airport from £288

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — KEF
17 Jul — 24 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Keflavik Intl

Enter your travel dates to find the best prices.

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

Fri 23/1009:05
SOU
-
KEF
2 stops24h 40m
KLM
Thu 29/1014:45
KEF
-
SOU
1 stop17h 25m
KLM
Deal found 13/6£335
Wed 1/714:20
SOU
-
KEF
2 stops22h 05m
Multiple Airlines
Tue 7/708:35
KEF
-
SOU
1 stop28h 05m
Multiple Airlines
Deal found 16/6£384
Wed 1/714:20
SOU
-
KEF
1 stop25h 20m
easyJet
Tue 7/708:35
KEF
-
SOU
1 stop28h 05m
easyJet
Deal found 16/6£409
Sat 1/820:00
SOU
-
KEF
2 stops20h 45m
Multiple Airlines
Sat 8/808:30
KEF
-
SOU
2 stops9h 40m
Multiple Airlines
Deal found 17/6£438
Fri 10/720:40
SOU
-
KEF
1 stop12h 10m
Multiple Airlines
Tue 14/718:00
KEF
-
SOU
2 stops37h 35m
Multiple Airlines
Deal found 16/6£447
Fri 31/708:55
SOU
-
KEF
2 stops23h 55m
Multiple Airlines
Fri 7/817:40
KEF
-
SOU
3 stops24h 30m
Multiple Airlines
Deal found 15/6£468

Find flight deals from Portsmouth to Keflavik Intl

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

Round-trip from

£335

One-way from

£288

Popular in

July

Cheapest in

January

Average price

£233
KLM
  • KLM
  • 23/10-29/10
  • 3 total stops
  • 42h 05m total
  • Portsmouth to Reykjavik
Search Deals
British Airways
  • British Airways
  • 5/9
  • 2 total stops
  • 19h 35m total
  • Portsmouth to Reykjavik
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Keflavik Intl 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 June 2026.
Use the filters below to find and compare flights from Portsmouth to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Fri 23/10

09:05-08:45

2 stops24h 40m

Reykjavik Keflavik Intl

Thu 29/10

14:45-08:10

1 stop17h 25m

£335

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Wed 1/7

14:20-11:25

2 stops22h 05m

Reykjavik Keflavik Intl

Tue 7/7

08:35-13:40

1 stop28h 05m

£384

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Wed 1/7

14:20-14:40

1 stop25h 20m

Reykjavik Keflavik Intl

Tue 7/7

08:35-13:40

1 stop28h 05m

£409
Fastest return journey

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Sat 1/8

20:00-15:45

2 stops20h 45m

Reykjavik Keflavik Intl

Sat 8/8

08:30-19:10

2 stops9h 40m

£438

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Fri 10/7

20:40-07:50

1 stop12h 10m

Reykjavik Keflavik Intl

Tue 14/7

18:00-08:35

2 stops37h 35m

£452

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Fri 31/7

18:05-16:15

2 stops23h 10m

Reykjavik Keflavik Intl

Fri 7/8

10:30-08:45

2 stops21h 15m

£518
Cheapest one-way

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Sat 5/9

14:55-09:30

2 stops19h 35m

£288

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Thu 2/7

14:25-09:25

2 stops44h 00m

£310

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Fri 3/7

06:50-09:25

2 stops27h 35m

£310

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Wed 12/8

06:45-09:40

2 stops27h 55m

£326

Flights are sorted by cheapest return flights first.

Deals found on 14/6

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Best time to book a flight from Portsmouth to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl 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 Reykjavik Keflavik Intl Airport

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

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

Unlike at midday, when flights are generally more expensive, you can save up to 25% on flights from Portsmouth to Reykjavik Keflavik Intl Airport by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Portsmouth to Reykjavik Keflavik Intl Airport?

Use this chart to determine the cheapest time to fly return from Portsmouth to Keflavik Intl. Price data was last updated on 13 June 2026.

Travellers seeking maximum savings on their Portsmouth to Reykjavik Keflavik Intl Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Saturday evenings 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 Keflavik Intl. 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 Reykjavik Keflavik Intl Airport?

    A quick flight from Portsmouth to Reykjavik Keflavik Intl Airport can take about 24h 40m. KLM provides one of the quickest options available for as low as £335. The distance from Portsmouth to Reykjavik Keflavik Intl Airport is about 1185 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from Portsmouth to Reykjavik Keflavik Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Portsmouth to Reykjavik Keflavik Intl Airport on time: Turkish Airlines (93%), Icelandair (93%), Emirates (93%).

  • What are the cheapest flights from Portsmouth to Reykjavik Keflavik Intl Airport?

    While on average a flight from Portsmouth to Reykjavik Keflavik Intl Airport is generally £810, our data shows the cheapest flight currently is £113. When looking at the most popular route, (Southampton Eastleigh - Reykjavik Keflavik Intl), you can expect to pay £384 for that flight.

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

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

  • How can I find direct flights from Portsmouth to Keflavik Intl?

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Keflavik Intl 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

Travelling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Hveragerdi
Keflavik

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Portsmouth to Keflavik Intl

Discover the top 4 airlines that operate flights from Portsmouth to Keflavik Intl. 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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£54Average£116FlexibilityNo cancel feeOn-time86%
Search easyJet flights
IcelandairCheapest£119Average£276FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£133Average£244FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Scandinavian AirlinesCheapest£168Average£353FlexibilityNo 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 Keflavik Intl?

Cheapflights makes it easy to find Portsmouth to Keflavik Intl 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 from Portsmouth to Keflavik Intl?

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

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

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

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

Yes, Cheapflights offers price alerts on Portsmouth to Keflavik Intl 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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