Find flights
When to book
FAQs

Cheap flights from Southampton to Reykjavik Keflavik Intl Airport from £124

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — KEF
24 elo — 31 elo1
1 adult

Cheap flight deals from Southampton to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) to Keflavik Intl (KEF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 elokuu 2025.

Round-trip from

£266

One-way from

£124

Popular in

July

Cheapest in

January

Average price

£207
KLM
  • KLM
  • 21/10-24/10
  • 2 total stops
  • 33h 50m total
  • Southampton to Reykjavik
Search Deals
KLM
  • KLM
  • 18/9
  • 1 total stop
  • 15h 10m total
  • Southampton to Reykjavik
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£36 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Southampton to Keflavik Intl

Cheapest flights from Southampton to Keflavik Intl
Explore the most affordable flight options available from Southampton to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 elokuu 2025.

ti 21/1017:35SOU - KEF
1 stop26h 25mKLM
pe 24/1008:35KEF - SOU
1 stop7h 25mKLM
Deal found 17/8£266
ke 1/1009:20SOU - KEF
1 stop10h 40mKLM
ke 8/1019:50KEF - SOU
1 stop11h 55mKLM
Deal found 17/8£269
ke 1/1008:55SOU - KEF
2 stops24h 20mMultiple Airlines
ke 8/1020:55KEF - SOU
2 stops16h 25mMultiple Airlines
Deal found 17/8£290
ti 21/1009:10SOU - KEF
2 stops25h 20mMultiple Airlines
pe 24/1009:00KEF - SOU
2 stops21h 55mMultiple Airlines
Deal found 17/8£314
to 2/1020:00SOU - KEF
1 stop18h 15mMultiple Airlines
to 9/1019:10KEF - SOU
2 stops22h 45mMultiple Airlines
Deal found 18/8£316

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton 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 19 elokuu 2025.
Use the filters below to find and compare flights from Southampton to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Southampton

Fly to

Keflavik Intl

Route

Depart

Return

Price

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

ti 21/10

17:35-19:00

1 stop26h 25m

Reykjavik Keflavik Intl

pe 24/10

08:35-17:00

1 stop7h 25m

£266

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

to 2/10

17:35-07:45

1 stop15h 10m

Reykjavik Keflavik Intl

to 9/10

10:00-17:00

1 stop6h 00m

£269

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

ke 1/10

09:20-19:00

1 stop10h 40m

Reykjavik Keflavik Intl

ke 8/10

19:50-08:45

1 stop11h 55m

£269

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

ke 1/10

08:55-08:15

2 stops24h 20m

Reykjavik Keflavik Intl

ke 8/10

20:55-14:20

2 stops16h 25m

£290

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

ti 21/10

09:10-09:30

2 stops25h 20m

Reykjavik Keflavik Intl

pe 24/10

09:00-07:55

2 stops21h 55m

£314

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

to 2/10

20:00-13:15

1 stop18h 15m

Reykjavik Keflavik Intl

to 9/10

19:10-18:55

2 stops22h 45m

£316

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

to 18/9

17:35-07:45

1 stop15h 10m

£124

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

ma 27/10

18:10-19:45

1 stop25h 35m

£130

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

to 18/9

15:05-13:45

2 stops23h 40m

£144

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

to 18/9

16:30-09:40

2 stops18h 10m

£364

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 12 results
1
2

Best time to book a flight from Southampton to Keflavik Intl

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

What is the cheapest month to book a flight from Southampton to Reykjavik Keflavik Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Southampton to Reykjavik Keflavik Intl Airport (average of £75). Flying from Southampton to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £289). 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.

Related info for your journey

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

  • What airport do you fly from for flights from Southampton to Reykjavik Keflavik Intl?

    Located just 3.5 mi from the city center, Southampton Eastleigh is the airport most travelers will use when flying to Reykjavik Keflavik Intl from Southampton. Booking flights from Eastleigh (SOU) to Reykjavik Keflavik Intl should be relatively easy as there are 0 daily outbound flights to Reykjavik Keflavik Intl from 0 different airlines.

  • How long is the flight from Southampton to Reykjavik Keflavik Intl Airport?

    A quick flight from Southampton to Reykjavik Keflavik Intl Airport can take about 26h 25m. KLM provides one of the quickest options available for as low as £266. Southampton and Reykjavik Keflavik Intl Airport are separated by a distance of 1185 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Southampton 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.

  • What is the cheapest month to book a flight from Southampton to Reykjavik Keflavik Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Southampton to Reykjavik Keflavik Intl Airport (average of £75). Flying from Southampton to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £289). 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

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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 Southampton to Keflavik Intl?

When you search for this flight from Southampton to Keflavik Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Southampton to Keflavik Intl?

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

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

Yes, we can. To see specific flights from Southampton to Keflavik Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for Southampton to Keflavik Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your 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.