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Cheap flights from Lisbon to Reykjavik Keflavik Intl Airport from £99

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — KEF
20 Jun — 27 Jun1
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 15 June 2025.

Round-trip from

£171

One-way from

£99

Popular in

June

Cheapest in

January

Average price

£348

Good one-way deal

£160 or less
easyJet
  • easyJet
  • 15/11-22/11
  • 2 total stops
  • 40h 55m total
  • Lisbon to Reykjavik
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8/10
  • 8/10
  • 1 total stop
  • 8h 50m total
  • Lisbon to Reykjavik
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Highest demand for flights based on searches. 20% potential increase in price (£42 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£10 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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Price to beat on a one-way flight from Lisbon Humberto Delgado to Reykjavik Keflavik Intl.
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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 15 June 2025.

Sat 15/1111:15LIS - KEF
1 stop22h 00measyJet
Sat 22/1118:35KEF - LIS
1 stop18h 55measyJet
Deal found 15/6£171
Thu 27/1106:25LIS - KEF
1 stop19h 05mMultiple Airlines
Thu 4/1215:30KEF - LIS
1 stop19h 30mMultiple Airlines
Deal found 14/6£200
Mon 22/1221:15LIS - KEF
Nonstop4h 35mPLAY
Fri 2/115:50KEF - LIS
Nonstop4h 25mPLAY
Deal found 14/6£253
Thu 3/714:30LIS - KEF
1 stop10h 40mLufthansa
Thu 10/709:10KEF - LIS
2 stops13h 20mLufthansa
Deal found 14/6£259
Thu 19/605:55LIS - KEF
1 stop27h 20mSWISS
Thu 26/609:10KEF - LIS
1 stop13h 10mSWISS
Deal found 14/6£295
Sun 9/1116:55LIS - KEF
2 stops19h 20mScandinavian Airlines
Sat 15/1107:35KEF - LIS
1 stop10h 20mScandinavian Airlines
Deal found 14/6£297
Mon 22/1205:00LIS - KEF
1 stop14h 05mKLM
Fri 2/111:25KEF - LIS
1 stop11h 45mKLM
Deal found 15/6£353
Sun 9/1121:20LIS - KEF
Nonstop4h 30mIcelandair
Sat 15/1107:40KEF - LIS
1 stop6h 20mIcelandair
Deal found 14/6£414
Sun 12/1022:25LIS - KEF
Nonstop4h 25mTAP AIR PORTUGAL
Tue 21/1007:40KEF - LIS
1 stop7h 20mTAP AIR PORTUGAL
Deal found 13/6£420

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 15 June 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

Sat 15/11

11:15-09:15

1 stop22h 00m

Reykjavik Keflavik Intl

Sat 22/11

18:35-13:30

1 stop18h 55m

£171

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Thu 27/11

06:25-01:30

1 stop19h 05m

Reykjavik Keflavik Intl

Thu 4/12

15:30-11:00

1 stop19h 30m

£200

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Thu 3/7

14:30-00:10

1 stop10h 40m

Reykjavik Keflavik Intl

Thu 10/7

09:10-23:30

2 stops13h 20m

£259

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 18/7

21:20-00:50

Nonstop4h 30m

Reykjavik Keflavik Intl

Fri 25/7

14:50-20:20

Nonstop4h 30m

£286

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sun 9/11

16:55-12:15

2 stops19h 20m

Reykjavik Keflavik Intl

Sat 15/11

07:35-17:55

1 stop10h 20m

£297

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 25/6

05:55-08:20

1 stop27h 25m

Reykjavik Keflavik Intl

Fri 27/6

09:05-11:40

2 stops25h 35m

£320

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sun 9/11

21:20-01:50

Nonstop4h 30m

Reykjavik Keflavik Intl

Sat 15/11

07:40-14:00

1 stop6h 20m

£414

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sun 12/10

22:25-01:50

Nonstop4h 25m

Reykjavik Keflavik Intl

Tue 21/10

07:40-16:00

1 stop7h 20m

£420

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 15/8

06:15-23:20

2 stops18h 05m

Reykjavik Keflavik Intl

Sat 16/8

00:10-21:50

2 stops44h 40m

£587

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 8/10

05:55-13:45

1 stop8h 50m

£99

Flights are sorted by cheapest return flights first.

Deals found on 14/6

Showing 1-10 of 18 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 13 June 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 15 June 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.

Rainfall in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport ranges from 40.0 - 80.0 inches per month. January is typically the wettest month, when rainfall can reach 80.0 mm. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 40.0 mm.

Temperature in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 11.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Keflavik Intl. Reviews last updated 15 June 2025.
Austrian Airlines
7.6
Good
803 reviews
Check prices

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Austrian Airlines
7.6
Good
803 reviews
Austrian Airlines
7.6
Good
803 reviews
Check prices

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
SWISS
7.5
Good
1,627 reviews
Austrian Airlines
7.6
Good
803 reviews
Check prices

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Transavia France
7.4
Good
349 reviews
Austrian Airlines
7.6
Good
803 reviews
Check prices

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Scandinavian Airlines
7.3
Good
1,388 reviews
Austrian Airlines
7.6
Good
803 reviews
Check prices

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Vueling
7.1
Good
1,169 reviews
Austrian Airlines
7.6
Good
803 reviews
Check prices

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

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.

  • What are the cheapest airlines flying from Lisbon to Reykjavik Keflavik Intl Airport round-trip?

    Our cheapest airline available from Lisbon to Reykjavik Keflavik Intl Airport is easyJet. Our recent data shows that you can find tickets from as low as £171 on this airline. Additional options worth looking into are Lufthansa and PLAY, starting at £259 and £286 round-trip. Users have found that easyJet is 23% cheaper than the other options available to this destination.

  • 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 £115. Users have also found prices from £146 and £169 on PLAY and Transavia France, 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 (100%), TAP AIR PORTUGAL (100%), PLAY( 0%).

  • What are the cheapest flights from Lisbon to Reykjavik Keflavik Intl Airport?

    On average you can expect to pay £163 for a flight from Lisbon to Reykjavik Keflavik Intl Airport. The cheapest flight overall is £160 while the most popular route, (Lisbon Humberto Delgado - Reykjavik Keflavik Intl) is currently priced at £322.

  • 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

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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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