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Cheap flights from Southampton to Reykjavik Keflavik Intl Airport from £316

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — KEF
27 Jul — 3 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Keflavik Intl

Enter your travel dates to find the best prices.

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 27 June 2026.

Wed 12/818:05
SOU
-
KEF
1 stop15h 30m
KLM
Tue 18/811:15
KEF
-
SOU
2 stops20h 30m
KLM
Deal found 25/6£316
Sat 24/1009:20
SOU
-
KEF
1 stop10h 45m
KLM
Tue 27/1014:45
KEF
-
SOU
1 stop17h 25m
KLM
Deal found 26/6£341
Wed 12/810:45
SOU
-
KEF
3 stops23h 55m
Multiple Airlines
Tue 18/818:10
KEF
-
SOU
2 stops24h 20m
Multiple Airlines
Deal found 26/6£345

Find 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 27 June 2026.

Round-trip from

£316

Popular in

July

Cheapest in

January

Average price

£229
KLM
  • KLM
  • 12/8-18/8
  • 3 total stops
  • 36h 00m total
  • Southampton to Reykjavik
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£54 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 June 2026
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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 27 June 2026.
Use the filters below to find and compare flights from Southampton 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

Wed 12/8

18:05-08:35

1 stop15h 30m

Reykjavik Keflavik Intl

Tue 18/8

11:15-08:45

2 stops20h 30m

£316
Fastest return journey

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Sat 24/10

09:20-19:05

1 stop10h 45m

Reykjavik Keflavik Intl

Tue 27/10

14:45-08:10

1 stop17h 25m

£341

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Wed 12/8

10:45-08:00

3 stops22h 15m

Reykjavik Keflavik Intl

Tue 18/8

18:10-19:30

2 stops24h 20m

£350
Cheapest one-way
Fastest single journey

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Wed 5/8

12:35-09:40

2 stops22h 05m

£455

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Fri 7/8

08:55-09:25

2 stops25h 30m

£573

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Thu 6/8

19:30-09:25

2 stops38h 55m

£573

Flights are sorted by cheapest return flights first.

Deals found on 27/6

Sorted by cheapest first

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.

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 15h 30m. KLM provides one of the quickest options available for as low as £316. 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.

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

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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.

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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.

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