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Cheap flights from London Southend Airport to Reykjavik Keflavik Intl Airport from £99

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 25/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — KEF
18 Mar — 25 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southend to Keflavik Intl

Enter your travel dates to find the best prices.

Cheapest flights from Southend to Keflavik Intl
Explore the most affordable flight options available from Southend to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 February 2026.

Thu 11/610:10
SEN
-
KEF
1 stop9h 35m
Multiple Airlines
Sun 14/600:50
KEF
-
SEN
1 stop8h 40m
Multiple Airlines
Deal found 15/2£332
Fri 5/608:10
SEN
-
KEF
1 stop11h 35m
Multiple Airlines
Sun 7/600:50
KEF
-
SEN
1 stop8h 40m
Multiple Airlines
Deal found 12/2£343
Sun 7/607:25
SEN
-
KEF
1 stop12h 20m
Multiple Airlines
Sat 13/600:50
KEF
-
SEN
1 stop8h 35m
Multiple Airlines
Deal found 12/2£354
Thu 11/610:10
SEN
-
KEF
1 stop9h 35m
Multiple Airlines
Sat 13/600:50
KEF
-
SEN
1 stop8h 35m
Multiple Airlines
Deal found 13/2£355
Sat 14/307:15
SEN
-
KEF
1 stop11h 50m
Multiple Airlines
Mon 16/320:05
KEF
-
SEN
1 stop14h 15m
Multiple Airlines
Deal found 15/2£359
Thu 21/510:10
SEN
-
KEF
1 stop9h 35m
Multiple Airlines
Sat 23/500:50
KEF
-
SEN
1 stop8h 35m
Multiple Airlines
Deal found 14/2£376
Mon 7/911:10
SEN
-
KEF
1 stop8h 35m
Multiple Airlines
Sat 12/900:50
KEF
-
SEN
1 stop8h 35m
Multiple Airlines
Deal found 15/2£398
Sun 6/907:25
SEN
-
KEF
1 stop12h 20m
Multiple Airlines
Sat 12/900:50
KEF
-
SEN
1 stop8h 35m
Multiple Airlines
Deal found 15/2£414
Tue 24/207:35
SEN
-
KEF
1 stop10h 25m
Multiple Airlines
Thu 26/211:25
KEF
-
SEN
1 stop5h 50m
Multiple Airlines
Deal found 13/2£420
Mon 2/312:20
SEN
-
KEF
1 stop6h 45m
Multiple Airlines
Thu 12/311:25
KEF
-
SEN
1 stop5h 50m
Multiple Airlines
Deal found 14/2£428
Thu 14/510:10
SEN
-
KEF
1 stop9h 35m
Multiple Airlines
Sat 23/517:45
KEF
-
SEN
1 stop15h 40m
Multiple Airlines
Deal found 12/2£428
Mon 2/312:20
SEN
-
KEF
1 stop6h 45m
Multiple Airlines
Thu 5/311:25
KEF
-
SEN
1 stop5h 50m
Multiple Airlines
Deal found 13/2£439

Find flight deals from Southend to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Southend (SEN) 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 16 February 2026.

Round-trip from

£332

One-way from

£99

Popular in

July

Cheapest in

January

Average price

£152
11/6-14/6
  • 11/6-14/6
  • 2 total stops
  • 18h 15m total
  • London to Reykjavik
Search Deals
25/4
  • 25/4
  • 2 total stops
  • 16h 25m total
  • London to Reykjavik
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£43 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 February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southend 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 16 February 2026.
Use the filters below to find and compare flights from London Southend Airport to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Southend

Fly to

Keflavik Intl

Route

Depart

Return

Price

LondonReykjavik

SEN - KEF

SENKEF

London Southend

Fri 5/6

08:10-18:45

1 stop11h 35m

Reykjavik Keflavik Intl

Sun 7/6

00:50-10:30

1 stop8h 40m

£343

LondonReykjavik

SEN - KEF

SENKEF

London Southend

Sun 7/6

07:25-18:45

1 stop12h 20m

Reykjavik Keflavik Intl

Sat 13/6

00:50-10:25

1 stop8h 35m

£354

LondonReykjavik

SEN - KEF

SENKEF

London Southend

Sat 14/3

07:15-19:05

1 stop11h 50m

Reykjavik Keflavik Intl

Mon 16/3

20:05-10:20

1 stop14h 15m

£359

LondonReykjavik

SEN - KEF

SENKEF

London Southend

Thu 21/5

10:10-18:45

1 stop9h 35m

Reykjavik Keflavik Intl

Sat 23/5

00:50-10:25

1 stop8h 35m

£376

LondonReykjavik

SEN - KEF

SENKEF

London Southend

Mon 2/3

12:20-19:05

1 stop6h 45m

Reykjavik Keflavik Intl

Thu 12/3

11:25-17:15

1 stop5h 50m

£428

LondonReykjavik

SEN - KEF

SENKEF

London Southend

Mon 2/3

12:20-19:05

1 stop6h 45m

Reykjavik Keflavik Intl

Thu 5/3

11:25-17:15

1 stop5h 50m

£439

LondonReykjavik

SEN - KEF

SENKEF

London Southend

Wed 4/3

07:10-15:50

1 stop8h 40m

Reykjavik Keflavik Intl

Tue 10/3

01:10-10:00

2 stops8h 50m

£448

LondonReykjavik

SEN - KEF

SENKEF

London Southend

Mon 9/3

12:20-19:05

1 stop6h 45m

Reykjavik Keflavik Intl

Thu 12/3

11:25-17:15

1 stop5h 50m

£448

LondonReykjavik

SEN - KEF

SENKEF

London Southend

Mon 30/3

11:10-18:45

1 stop8h 35m

Reykjavik Keflavik Intl

Thu 2/4

19:15-10:45

2 stops14h 30m

£452

LondonReykjavik

SEN - KEF

SENKEF

London Southend

Fri 13/3

06:40-14:45

2 stops8h 05m

Reykjavik Keflavik Intl

Mon 16/3

20:05-10:20

1 stop14h 15m

£453

Flights are sorted by cheapest return flights first.

Deals found on 12/2

Showing 1-10 of 18 results
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Best time to book a flight from Southend to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Southend 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 Southend to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Southend 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.

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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Alternative routes for Southend to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Southend to Keflavik Intl?

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

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

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

Yes, we can. To see specific flights from Southend 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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