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Cheap flights from Lisbon to Reykjavik Keflavik Intl Airport from £157

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — KEF
21 Nov — 28 Nov1
1 adult
1 adult, Economy

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 22 October 2025.

Round-trip from

£164

Popular in

July

Cheapest in

January

Average price

£273
easyJet
  • easyJet
  • 5/12-9/12
  • 2 total stops
  • 34h 40m total
  • Lisbon to Reykjavik
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Highest demand for flights based on searches. 26% potential increase in price (£66 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find 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 October 2025.

Fri 5/1218:25LIS - KEF
1 stop15h 40measyJet
Tue 9/1218:35KEF - LIS
1 stop19h 00measyJet
Deal found 21/10£164
Sat 6/1219:50LIS - KEF
1 stop14h 40measyJet
Sat 13/1219:45KEF - LIS
1 stop14h 30measyJet
Deal found 21/10£170
Fri 5/1218:25LIS - KEF
1 stop15h 40measyJet
Fri 12/1219:15KEF - LIS
1 stop24h 00measyJet
Deal found 21/10£205
Tue 18/1120:15LIS - KEF
1 stop15h 00measyJet
Tue 25/1118:35KEF - LIS
1 stop19h 00measyJet
Deal found 21/10£226
Thu 4/1221:20LIS - KEF
Nonstop4h 30mIcelandair
Thu 11/1216:00KEF - LIS
Nonstop4h 20mIcelandair
Deal found 21/10£235
Sun 7/1205:00LIS - KEF
1 stop14h 05mKLM
Sun 14/1220:05KEF - LIS
1 stop14h 30mKLM
Deal found 21/10£265
Thu 6/1106:10LIS - KEF
1 stop8h 20mLufthansa
Thu 13/1115:10KEF - LIS
1 stop8h 20mLufthansa
Deal found 21/10£278
Thu 25/1205:00LIS - KEF
1 stop14h 05mKLM
Wed 31/1220:05KEF - LIS
1 stop14h 30mKLM
Deal found 20/10£287
Mon 8/1216:55LIS - KEF
1 stop17h 50mScandinavian Airlines
Sun 14/1216:25KEF - LIS
2 stops23h 40mScandinavian Airlines
Deal found 21/10£292
Thu 4/1208:00LIS - KEF
1 stop31h 15mScandinavian Airlines
Sun 14/1216:25KEF - LIS
2 stops23h 40mScandinavian Airlines
Deal found 21/10£311
Wed 26/1105:00LIS - KEF
1 stop14h 05mKLM
Mon 1/1220:05KEF - LIS
1 stop14h 30mKLM
Deal found 22/10£312

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 October 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

Tue 3/2

18:55-11:15

1 stop16h 20m

Reykjavik Keflavik Intl

Sat 7/2

18:35-23:35

1 stop29h 00m

£157

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 28/1

06:15-17:15

1 stop11h 00m

Reykjavik Keflavik Intl

Sat 31/1

19:05-19:35

1 stop24h 30m

£167

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Mon 23/2

06:05-19:05

1 stop13h 00m

Reykjavik Keflavik Intl

Sun 1/3

10:05-19:20

1 stop9h 15m

£168

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Thu 26/3

19:10-10:50

1 stop15h 40m

Reykjavik Keflavik Intl

Sun 29/3

09:35-21:00

1 stop10h 25m

£216

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Mon 12/1

05:00-19:05

1 stop14h 05m

Reykjavik Keflavik Intl

Mon 19/1

20:05-10:35

1 stop14h 30m

£235

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 6/2

12:00-15:15

1 stop27h 15m

Reykjavik Keflavik Intl

Wed 11/2

07:35-21:50

1 stop14h 15m

£268

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 14/1

07:00-23:20

2 stops40h 20m

Reykjavik Keflavik Intl

Sun 18/1

15:40-17:20

1 stop25h 40m

£270

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sat 14/2

12:45-10:30

1 stop21h 45m

Reykjavik Keflavik Intl

Thu 19/2

11:30-16:05

2 stops28h 35m

£273

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 4/2

16:55-10:45

2 stops17h 50m

Reykjavik Keflavik Intl

Mon 9/2

13:00-21:30

2 stops32h 30m

£289

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 14/1

16:55-23:20

1 stop30h 25m

Reykjavik Keflavik Intl

Mon 19/1

15:40-16:25

2 stops48h 45m

£290

Flights are sorted by cheapest return flights first.

Deals found on 22/10

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 17 October 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, February is the cheapest month in which you can book a flight from Lisbon to Reykjavik Keflavik Intl Airport (average of £100). Flying from Lisbon to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £276). 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 22 October 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 £149, easyJet can have you in Reykjavik Keflavik Intl Airport from Lisbon in 14h 20m. Lisbon and Reykjavik Keflavik Intl Airport are separated by a distance of 1826 mi.

  • What are the most reliable airlines from Lisbon to Reykjavik Keflavik Intl Airport?

    Before booking your flight to Reykjavik Keflavik Intl Airport from Lisbon, check out the most reliable airlines to get you to your destination on time: Icelandair (88%), TAP AIR PORTUGAL (88%), PLAY( 0%).

  • 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, February is the cheapest month in which you can book a flight from Lisbon to Reykjavik Keflavik Intl Airport (average of £100). Flying from Lisbon to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £276). 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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