Cheap flights from Lisbon to Reykjavik Keflavik Intl Airport from £76
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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Lisbon to Keflavik Intl
Discover tips and strategies to find the most affordable flight options for your journey from Lisbon (LIS) 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 31 August 2025.
Round-trip from | £162 |
---|---|
One-way from | £76 |
Popular in | July |
Cheapest in | January |
Average price | £255 |
Find flight deals from Lisbon to Keflavik Intl
Cheapest flights from Lisbon to Keflavik IntlExplore the most affordable flight options available from Lisbon to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 August 2025.
Explore the most affordable flight options available from Lisbon to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 August 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Lisbon to Reykjavik Keflavik Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LisbonReykjavik
LIS - KEF
LISKEF
Lisbon Humberto Delgado
Mon 3/11
21:15-01:50
Nonstop4h 35m
Reykjavik Keflavik Intl
Mon 10/11
15:50-20:15
Nonstop4h 25m
LisbonReykjavik
LIS - KEF
LISKEF
Lisbon Humberto Delgado
Mon 22/12
21:15-01:50
Nonstop4h 35m
Reykjavik Keflavik Intl
Fri 2/1
15:50-20:15
Nonstop4h 25m
LisbonReykjavik
LIS - KEF
LISKEF
Lisbon Humberto Delgado
Thu 19/2
21:20-01:50
Nonstop4h 30m
Reykjavik Keflavik Intl
Sun 22/2
16:00-20:20
Nonstop4h 20m
LisbonReykjavik
LIS - KEF
LISKEF
Lisbon Humberto Delgado
Fri 5/12
07:05-18:20
1 stop11h 15m
Reykjavik Keflavik Intl
Tue 9/12
11:05-19:25
1 stop8h 20m
LisbonReykjavik
LIS - KEF
LISKEF
Lisbon Humberto Delgado
Tue 23/12
20:15-10:45
1 stop14h 30m
Reykjavik Keflavik Intl
Sun 28/12
11:20-19:15
1 stop7h 55m
LisbonReykjavik
LIS - KEF
LISKEF
Lisbon Humberto Delgado
Thu 19/2
21:20-01:50
Nonstop4h 30m
Reykjavik Keflavik Intl
Thu 26/2
16:00-20:20
Nonstop4h 20m
LisbonReykjavik
LIS - KEF
LISKEF
Lisbon Humberto Delgado
Mon 22/12
06:05-19:05
1 stop13h 00m
Reykjavik Keflavik Intl
Sat 27/12
19:45-10:15
1 stop14h 30m
LisbonReykjavik
LIS - KEF
LISKEF
Lisbon Humberto Delgado
Fri 5/12
07:05-18:20
1 stop11h 15m
Reykjavik Keflavik Intl
Mon 8/12
19:35-10:25
1 stop14h 50m
LisbonReykjavik
LIS - KEF
LISKEF
Lisbon Humberto Delgado
Tue 17/2
17:15-11:00
1 stop17h 45m
Reykjavik Keflavik Intl
Wed 25/2
11:50-21:55
1 stop10h 05m
LisbonReykjavik
LIS - KEF
LISKEF
Lisbon Humberto Delgado
Sat 20/12
16:20-09:25
1 stop17h 05m
Reykjavik Keflavik Intl
Tue 23/12
13:00-23:25
1 stop10h 25m
Best time to book a flight from Lisbon to Keflavik Intl
Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Lisbon with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Lisbon to Reykjavik Keflavik Intl Airport
How far ahead should I book a flight from Lisbon to Reykjavik Keflavik Intl Airport?
Booking 28 days in advance of your planned departure date is, on average, the best time to get cheap flights from Lisbon to Reykjavik Keflavik Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Lisbon to Reykjavik Keflavik Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Lisbon to Reykjavik Keflavik Intl Airport (average of £75). Flying from Lisbon 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.
What is the cheapest time of day to fly from LIS to KEF?
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Lisbon to Reykjavik Keflavik Intl Airport as you normally would.
Related info for your journey
Find useful and relevant information for your journey from Lisbon to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Reykjavik Keflavik Intl Airport?
Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locationsBrowse thousands of different options on Cheapflights for your next trip
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Complete your trip
Complete your trip to Keflavik Intl by adding a car hire and/or hotel booking to your travel itinerary.
Fly with Cheapflights
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How does Cheapflights help users find flights from Lisbon to Keflavik Intl?
Cheapflights helps you search for flights from Lisbon to Keflavik Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Lisbon to Keflavik Intl?
Cheapflights helps you find that perfect flight to Keflavik Intl from Lisbon by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Lisbon to Keflavik Intl with no change fees?
Yes, we can. To see specific flights from Lisbon 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 Lisbon to Keflavik Intl become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Keflavik Intl from Lisbon today and book when prices fit your budget.