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Cheap flights from Lisbon to Reykjavik Keflavik Intl Airport from £113

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 24/6. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — KEF
3 May — 10 May1
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 3 April 2026.

Sat 16/509:10
LIS
-
KEF
1 stop11h 50m
Multiple Airlines
Sat 23/519:00
KEF
-
LIS
2 stops20h 35m
Multiple Airlines
Deal found 31/3£228
Wed 23/1210:55
LIS
-
KEF
1 stop22h 20m
easyJet
Thu 31/1218:05
KEF
-
LIS
1 stop16h 35m
easyJet
Deal found 2/4£230
Thu 23/418:55
LIS
-
KEF
1 stop14h 15m
easyJet
Sun 26/409:10
KEF
-
LIS
1 stop23h 45m
easyJet
Deal found 31/3£236
Sat 16/509:10
LIS
-
KEF
1 stop11h 50m
Vueling
Sat 23/520:45
KEF
-
LIS
1 stop10h 45m
Vueling
Deal found 31/3£238
Sat 20/607:00
LIS
-
KEF
1 stop17h 35m
easyJet
Wed 24/609:00
KEF
-
LIS
1 stop11h 00m
easyJet
Deal found 1/4£253
Thu 12/1116:55
LIS
-
KEF
1 stop17h 50m
Scandinavian Airlines
Mon 16/1118:05
KEF
-
LIS
1 stop22h 00m
Scandinavian Airlines
Deal found 30/3£264

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 3 April 2026.

Round-trip from

£228

One-way from

£113

Popular in

July

Cheapest in

January

Average price

£422
16/5-23/5
  • 16/5-23/5
  • 3 total stops
  • 32h 25m total
  • Lisbon to Reykjavik
Search Deals
Transavia France
  • Transavia France
  • 24/6
  • 1 total stop
  • 30h 00m total
  • Lisbon to Reykjavik
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£47 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 April 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 3 April 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 20/6

07:00-23:35

1 stop17h 35m

Reykjavik Keflavik Intl

Wed 24/6

09:00-21:00

1 stop11h 00m

£253

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 29/4

13:40-08:05

1 stop19h 25m

Reykjavik Keflavik Intl

Wed 6/5

09:00-21:00

1 stop11h 00m

£269

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sat 2/5

22:55-09:40

1 stop11h 45m

Reykjavik Keflavik Intl

Sat 9/5

10:30-22:05

1 stop10h 35m

£311

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 17/6

19:10-00:10

1 stop30h 00m

Reykjavik Keflavik Intl

Sat 20/6

01:10-12:00

1 stop9h 50m

£313

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 2/9

06:30-23:30

1 stop18h 00m

Reykjavik Keflavik Intl

Sun 6/9

01:20-22:55

1 stop20h 35m

£345

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Thu 11/6

05:00-18:15

1 stop14h 15m

Reykjavik Keflavik Intl

Sun 14/6

20:10-14:35

1 stop17h 25m

£371

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 12/6

07:00-15:20

1 stop9h 20m

Reykjavik Keflavik Intl

Tue 16/6

01:10-09:05

1 stop30h 55m

£472

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 6/5

05:00-19:00

1 stop15h 00m

Reykjavik Keflavik Intl

Tue 12/5

11:15-22:25

2 stops10h 10m

£539
Fastest return journey

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sun 6/9

22:20-01:50

Nonstop4h 30m

Reykjavik Keflavik Intl

Sun 13/9

07:30-21:45

1 stop13h 15m

£578
Cheapest one-way

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 1/7

19:10-00:10

1 stop30h 00m

£144

Flights are sorted by cheapest return flights first.

Deals found on 3/4

Showing 1-10 of 20 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?

Use this chart to determine the optimal time to book a return flight from Lisbon to Keflavik Intl. Price data was last updated on 2 April 2026.

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, October is the cheapest month in which you can book a flight from Lisbon to Reykjavik Keflavik Intl Airport (average of £120). Flying from Lisbon to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £253). 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 £375, easyJet can have you in Reykjavik Keflavik Intl Airport from Lisbon in 7h 20m. 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, October is the cheapest month in which you can book a flight from Lisbon to Reykjavik Keflavik Intl Airport (average of £120). Flying from Lisbon to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £253). 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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