Find flights
Deals
When to book
FAQs

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 19/2. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — KEF
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

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 7 November 2025.

Round-trip from

£157

Popular in

July

Cheapest in

January

Average price

£216
Icelandair
  • Icelandair
  • 19/2-1/3
  • Nonstop
  • 8h 50m total
  • Lisbon to Reykjavik
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£68 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 7 November 2025.

Mon 1/1206:05LIS - KEF
1 stop13h 00measyJet
Sat 6/1219:45KEF - LIS
1 stop14h 30measyJet
Deal found 5/11£196
Fri 5/1218:25LIS - KEF
1 stop15h 40measyJet
Fri 12/1219:40KEF - LIS
1 stop23h 10measyJet
Deal found 5/11£252
Sun 21/1210:20LIS - KEF
1 stop8h 20measyJet
Thu 1/118:50KEF - LIS
1 stop15h 15measyJet
Deal found 5/11£304
Sun 21/1210:20LIS - KEF
1 stop8h 20measyJet
Sun 28/1219:30KEF - LIS
1 stop17h 15measyJet
Deal found 6/11£310
Thu 25/1205:00LIS - KEF
1 stop14h 05mKLM
Wed 31/1220:05KEF - LIS
1 stop14h 30mKLM
Deal found 5/11£320
Wed 26/1105:00LIS - KEF
1 stop14h 05mKLM
Mon 1/1220:05KEF - LIS
1 stop14h 30mKLM
Deal found 6/11£331
Tue 2/1216:45LIS - KEF
1 stop26h 20mTransavia
Wed 10/1220:05KEF - LIS
1 stop23h 00mTransavia
Deal found 5/11£332
Sun 21/1221:20LIS - KEF
Nonstop4h 30mMultiple Airlines
Sun 28/1207:35KEF - LIS
1 stop11h 40mMultiple Airlines
Deal found 6/11£345
Sat 8/1116:40LIS - KEF
1 stop17h 50measyJet
Fri 14/1119:40KEF - LIS
1 stop16h 00measyJet
Deal found 5/11£348

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 7 November 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

Thu 19/2

21:20-01:50

Nonstop4h 30m

Reykjavik Keflavik Intl

Sun 1/3

16:00-20:20

Nonstop4h 20m

£157

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sun 11/1

19:45-11:10

1 stop15h 25m

Reykjavik Keflavik Intl

Sun 18/1

10:05-19:20

1 stop9h 15m

£162

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Thu 29/1

17:05-10:50

1 stop17h 45m

Reykjavik Keflavik Intl

Tue 3/2

13:00-18:10

1 stop29h 10m

£182

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Thu 5/2

07:00-17:15

1 stop10h 15m

Reykjavik Keflavik Intl

Sun 8/2

11:20-19:15

1 stop7h 55m

£184

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Thu 29/1

06:10-14:15

1 stop8h 05m

Reykjavik Keflavik Intl

Tue 3/2

15:20-08:30

2 stops17h 10m

£236

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Thu 19/2

06:10-14:15

1 stop8h 05m

Reykjavik Keflavik Intl

Tue 3/3

15:20-22:50

1 stop7h 30m

£246

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 5/12

18:25-10:05

1 stop15h 40m

Reykjavik Keflavik Intl

Fri 12/12

19:40-18:50

1 stop23h 10m

£252

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 4/2

16:55-10:45

2 stops17h 50m

Reykjavik Keflavik Intl

Mon 9/2

07:35-17:55

1 stop10h 20m

£262

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Tue 17/2

12:50-10:45

1 stop21h 55m

Reykjavik Keflavik Intl

Tue 24/2

12:00-16:05

2 stops28h 05m

£273

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 20/2

06:55-23:20

1 stop16h 25m

Reykjavik Keflavik Intl

Mon 2/3

15:40-21:30

1 stop29h 50m

£281

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 14 results
1
2

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 31 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 £102). Flying from Lisbon to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £286). 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 7 November 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 £157, Icelandair 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.

  • What are the cheapest airlines to fly from Lisbon to Reykjavik Keflavik Intl Airport one-way?

    For one-way options, check prices for easyJet. According to our data, you can fly for as low as £180. Users have also found prices from £189 and £299 on Transavia France and Lufthansa, respectively.

  • 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 (75%), TAP AIR PORTUGAL (75%), 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 £102). Flying from Lisbon to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of £286). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.