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Cheap flights from Lisbon to Reykjavik Keflavik Intl Airport from £122

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — KEF
22 Jul — 29 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Lisbon to Keflavik Intl

Enter your travel dates to find the best prices.

Cheapest flights from Lisbon to Keflavik Intl
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 22 June 2026.

Tue 10/1119:10
LIS
-
KEF
1 stop14h 40m
Multiple Airlines
Tue 17/1110:50
KEF
-
LIS
1 stop11h 15m
Multiple Airlines
Deal found 21/6£196
Sat 3/1006:00
LIS
-
KEF
1 stop27h 15m
easyJet
Tue 13/1009:25
KEF
-
LIS
1 stop11h 45m
easyJet
Deal found 20/6£235
Thu 1/1013:50
LIS
-
KEF
1 stop21h 05m
easyJet
Mon 5/1018:40
KEF
-
LIS
1 stop13h 00m
easyJet
Deal found 18/6£256
Fri 2/1014:00
LIS
-
KEF
1 stop28h 00m
easyJet
Tue 13/1009:25
KEF
-
LIS
1 stop11h 45m
easyJet
Deal found 20/6£267
Fri 2/1014:00
LIS
-
KEF
1 stop28h 00m
easyJet
Mon 5/1018:40
KEF
-
LIS
1 stop13h 00m
easyJet
Deal found 20/6£269
Wed 4/1105:00
LIS
-
KEF
1 stop8h 45m
KLM
Wed 18/1114:45
KEF
-
LIS
1 stop19h 45m
KLM
Deal found 21/6£278
Thu 1/1013:50
LIS
-
KEF
1 stop21h 05m
easyJet
Tue 6/1009:25
KEF
-
LIS
1 stop11h 45m
easyJet
Deal found 18/6£286

Find 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 22 June 2026.

Round-trip from

£196

One-way from

£122

Popular in

July

Cheapest in

January

Average price

£460
10/11-17/11
  • 10/11-17/11
  • 2 total stops
  • 25h 55m total
  • Lisbon to Reykjavik
Search Deals
easyJet
  • easyJet
  • 3/10
  • 1 total stop
  • 27h 15m total
  • Lisbon to Reykjavik
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£65 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Lisbon 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 22 June 2026.
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

Cheapest return flight

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sat 3/10

06:00-08:15

1 stop27h 15m

Reykjavik Keflavik Intl

Tue 13/10

09:25-22:10

1 stop11h 45m

£235

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 2/10

14:00-17:00

1 stop28h 00m

Reykjavik Keflavik Intl

Tue 13/10

09:25-22:10

1 stop11h 45m

£267

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 2/10

14:00-17:00

1 stop28h 00m

Reykjavik Keflavik Intl

Mon 5/10

18:40-08:40

1 stop13h 00m

£269
Fastest return journey

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 4/11

05:00-13:45

1 stop8h 45m

Reykjavik Keflavik Intl

Wed 18/11

14:45-10:30

1 stop19h 45m

£278

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Tue 17/11

15:35-13:45

1 stop22h 10m

Reykjavik Keflavik Intl

Sat 21/11

14:45-10:30

1 stop19h 45m

£297

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Thu 19/11

16:55-17:20

1 stop24h 25m

Reykjavik Keflavik Intl

Sun 22/11

18:05-16:05

1 stop22h 00m

£326
Cheapest one-way

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sat 3/10

06:00-08:15

1 stop27h 15m

£122

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sat 24/10

07:00-23:35

1 stop17h 35m

£127

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Mon 28/9

08:50-08:45

1 stop24h 55m

£135

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Tue 3/11

09:30-13:45

1 stop28h 15m

£143

Flights are sorted by cheapest return flights first.

Deals found on 20/6

Showing 1-10 of 18 resultsSorted by cheapest first
1
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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.
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 Lisbon to Reykjavik Keflavik Intl Airport

How far ahead should I book a flight from Lisbon to Reykjavik Keflavik Intl Airport?

Booking 69 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 £193). Flying from Lisbon to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £541). 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.

How much does it cost for a return flight from Lisbon to Reykjavik Keflavik Intl Airport?

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.

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

    Lisbon Humberto Delgado (LIS), located 4.2 mi from the city center, is the airport you fly out of when you book flights from Lisbon to Reykjavik Keflavik Intl. 0 airlines have flights from Humberto Delgado to Reykjavik Keflavik Intl on a regular basis. Booking flights from Lisbon Humberto Delgado to Reykjavik Keflavik Intl should not be difficult; the airport handles an average of 0 outbound flights to Reykjavik Keflavik Intl per day.

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

    For as low as £278, easyJet can have you in Reykjavik Keflavik Intl Airport from Lisbon in 8h 45m. Lisbon and Reykjavik Keflavik Intl Airport are separated by a distance of 1826 mi. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Lisbon 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 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 £193). Flying from Lisbon to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £541). 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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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.

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