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Cheap flights from Southampton to Reykjavik Keflavik Intl Airport from £263

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 28/6. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — KEF
28 Feb — 7 Mar1
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 29 January 2026.

Sat 14/315:20
SOU
-
KEF
2 stops19h 10m
Multiple Airlines
Sat 21/311:05
KEF
-
SOU
1 stop5h 40m
Multiple Airlines
Deal found 28/1£306
Fri 13/317:35
SOU
-
KEF
1 stop25h 30m
KLM
Fri 20/311:25
KEF
-
SOU
1 stop5h 35m
KLM
Deal found 27/1£348
Fri 13/317:45
SOU
-
KEF
1 stop21h 15m
Multiple Airlines
Fri 20/309:50
KEF
-
SOU
2 stops20h 55m
Multiple Airlines
Deal found 27/1£352
Mon 5/1012:35
SOU
-
KEF
2 stops20h 15m
Multiple Airlines
Tue 13/1007:35
KEF
-
SOU
1 stop4h 15m
Multiple Airlines
Deal found 27/1£397
Sun 8/312:15
SOU
-
KEF
2 stops22h 40m
British Airways
Sun 15/317:55
KEF
-
SOU
2 stops23h 35m
British Airways
Deal found 27/1£402
Fri 13/312:00
SOU
-
KEF
2 stops46h 40m
British Airways
Tue 17/311:50
KEF
-
SOU
2 stops29h 40m
British Airways
Deal found 27/1£413

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 29 January 2026.

Round-trip from

£306

One-way from

£263

Popular in

July

Cheapest in

November

Average price

£112
14/3-21/3
  • 14/3-21/3
  • 3 total stops
  • 24h 50m total
  • Southampton to Reykjavik
Search Deals
British Airways
  • British Airways
  • 28/6
  • 2 total stops
  • 19h 45m total
  • Southampton to Reykjavik
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£40 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 29 January 2026.
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

Sat 14/3

15:20-10:30

2 stops19h 10m

Reykjavik Keflavik Intl

Sat 21/3

11:05-16:45

1 stop5h 40m

£306

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Fri 13/3

17:45-15:00

1 stop21h 15m

Reykjavik Keflavik Intl

Fri 20/3

09:50-06:45

2 stops20h 55m

£352

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Mon 9/3

12:00-10:50

2 stops46h 50m

Reykjavik Keflavik Intl

Sun 15/3

11:50-17:30

2 stops29h 40m

£402

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Tue 10/3

12:00-10:50

2 stops22h 50m

Reykjavik Keflavik Intl

Tue 17/3

11:50-17:30

2 stops29h 40m

£402

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Mon 9/3

12:00-10:50

2 stops46h 50m

Reykjavik Keflavik Intl

Tue 17/3

11:50-17:30

2 stops29h 40m

£402

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Sun 8/3

12:15-10:55

2 stops22h 40m

Reykjavik Keflavik Intl

Sun 15/3

17:55-17:30

2 stops23h 35m

£402

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Sun 8/3

12:15-10:55

2 stops22h 40m

Reykjavik Keflavik Intl

Tue 17/3

11:50-17:30

2 stops29h 40m

£402

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Fri 13/3

12:00-10:40

2 stops46h 40m

Reykjavik Keflavik Intl

Tue 17/3

11:50-17:30

2 stops29h 40m

£413

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Fri 13/3

12:00-10:40

2 stops46h 40m

Reykjavik Keflavik Intl

Sun 15/3

17:55-17:30

2 stops23h 35m

£413

SouthamptonReykjavik

SOU - KEF

SOUKEF

Southampton Eastleigh

Sun 28/6

15:00-09:45

2 stops19h 45m

£263

Flights are sorted by cheapest return flights first.

Deals found on 26/1

Showing 1-10 of 11 results
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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 £50). Flying from Southampton to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £178). 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.

  • 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 £50). Flying from Southampton to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £178). 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

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