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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.
LIS — KEF
5 Sep — 12 Sep1
1 adult

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
PLAY
  • PLAY
  • 3/11-10/11
  • Nonstop
  • 9h 00m total
  • Lisbon to Reykjavik
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easyJet
  • easyJet
  • 8/12
  • 1 total stop
  • 14h 15m total
  • Lisbon to Reykjavik
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Highest demand for flights based on searches. 28% potential increase in price (£70 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Lisbon to Keflavik Intl

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 31 August 2025.

Mon 3/1121:15LIS - KEF
Nonstop4h 35mPLAY
Mon 10/1115:50KEF - LIS
Nonstop4h 25mPLAY
Deal found 31/8£162
Mon 22/1221:15LIS - KEF
Nonstop4h 35mPLAY
Fri 2/115:50KEF - LIS
Nonstop4h 25mPLAY
Deal found 31/8£164
Fri 5/1207:05LIS - KEF
1 stop11h 15measyJet
Tue 9/1211:05KEF - LIS
1 stop8h 20measyJet
Deal found 30/8£175
Tue 23/1220:15LIS - KEF
1 stop14h 30measyJet
Sun 28/1211:20KEF - LIS
1 stop7h 55measyJet
Deal found 30/8£188
Mon 22/1206:05LIS - KEF
1 stop13h 00measyJet
Sat 27/1219:45KEF - LIS
1 stop14h 30measyJet
Deal found 31/8£199
Fri 5/921:20LIS - KEF
Nonstop4h 30mPLAY
Mon 15/914:50KEF - LIS
Nonstop4h 30mPLAY
Deal found 31/8£202
Fri 5/1207:05LIS - KEF
1 stop11h 15measyJet
Mon 8/1219:35KEF - LIS
1 stop14h 50measyJet
Deal found 30/8£203
Sat 20/1216:20LIS - KEF
1 stop17h 05measyJet
Tue 23/1213:00KEF - LIS
1 stop10h 25measyJet
Deal found 31/8£214
Fri 5/1221:15LIS - KEF
Nonstop4h 35mPLAY
Mon 8/1215:50KEF - LIS
Nonstop4h 25mPLAY
Deal found 30/8£247
Tue 30/906:15LIS - KEF
1 stop18h 20measyJet
Thu 2/1010:45KEF - LIS
1 stop11h 30measyJet
Deal found 30/8£292
Tue 11/1112:50LIS - KEF
1 stop26h 35mScandinavian Airlines
Sun 16/1116:25KEF - LIS
2 stops22h 30mScandinavian Airlines
Deal found 31/8£319
Fri 26/1206:55LIS - KEF
1 stop17h 00mScandinavian Airlines
Sun 28/1219:30KEF - LIS
2 stops20h 35mScandinavian Airlines
Deal found 31/8£326

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 31 August 2025.
Use the filters below to find and compare flights from Lisbon to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Lisbon

Fly to

Keflavik Intl

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

£162

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

£164

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

£167

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

£175

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

£188

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

£189

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

£199

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

£203

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

£212

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

£214

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 22 results
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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 29 August 2025.

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?

Find hourly flight availability from Lisbon to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 August 2025.

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.

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 £167, PLAY can have you in Reykjavik Keflavik Intl Airport from Lisbon in 4h 30m. 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 £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.

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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