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Keflavik Intl

$83+ Cheap flights from Lisbon (LIS) to Keflavik Intl (KEF)

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — KEF
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Lisbon Humberto Delgado to Reykjavik Keflavik Intl are usually found in January or February, booked 28 days in advance, depart on a Tuesday or Monday and return on a Monday

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 September 15, 2025.

Round-trip from

$196
(Connections by easyJet)

One-way from

$83
(Connections by easyJet)

Popular in

July

Cheapest in

January

Average price

$406

Good round-trip deal

$210 or less

Good one-way deal

$326 or less
From Lisbon Humberto Delgado to Reykjavik Keflavik Intl
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One-way flight from Lisbon Humberto Delgado to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 28% potential increase in price ($123 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Lisbon Humberto Delgado to Reykjavik Keflavik Intl.
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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 September 15, 2025.

This Connections by easyJet deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/47:10 pmLIS - KEF
1 stop15h 50measyJet
Tue 11/1811:05 amKEF - LIS
1 stop8h 20measyJet
Deal found 9/15$196
This Icelandair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:20 pmLIS - KEF
Nonstop4h 30mIcelandair
Sun 11/304:00 pmKEF - LIS
Nonstop4h 20mIcelandair
Deal found 9/14$199
This Connections by easyJet deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:00 pmLIS - KEF
1 stop22h 15measyJet
Sat 11/156:35 pmKEF - LIS
1 stop18h 55measyJet
Deal found 9/15$225
This PLAY deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:20 pmLIS - KEF
Nonstop4h 30mPLAY
Fri 10/313:50 pmKEF - LIS
Nonstop4h 25mPLAY
Deal found 9/15$230
This Connections by easyJet deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:25 pmLIS - KEF
1 stop15h 40measyJet
Mon 12/811:55 amKEF - LIS
1 stop22h 30measyJet
Deal found 9/14$260
This PLAY deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:15 pmLIS - KEF
Nonstop4h 35mPLAY
Mon 12/293:50 pmKEF - LIS
Nonstop4h 25mPLAY
Deal found 9/14$284
This PLAY deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:15 pmLIS - KEF
Nonstop4h 35mPLAY
Fri 1/23:50 pmKEF - LIS
Nonstop4h 25mPLAY
Deal found 9/15$292
This Connections by easyJet deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:50 pmLIS - KEF
1 stop21h 25measyJet
Mon 1/512:00 pmKEF - LIS
1 stop25h 20measyJet
Deal found 9/14$298
This Connections by easyJet deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/11:40 pmLIS - KEF
1 stop20h 55measyJet
Sat 11/89:05 pmKEF - LIS
1 stop12h 40measyJet
Deal found 9/15$328
This Connections by easyJet deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:20 amLIS - KEF
1 stop8h 20measyJet
Fri 1/27:40 pmKEF - LIS
1 stop14h 45measyJet
Deal found 9/15$336
This FlightHub deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:55 pmLIS - KEF
1 stop15h 50mScandinavian Airlines
Wed 12/3111:30 amKEF - LIS
1 stop21h 25mScandinavian Airlines
Deal found 9/13$368
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1210:25 pmLIS - KEF
Nonstop4h 25mMultiple Airlines
Sun 10/196:55 pmKEF - LIS
1 stop13h 15mMultiple Airlines
Deal found 9/14$377

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 15, 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 11/4

7:10 pm-11:00 am

1 stop15h 50m

Reykjavik Keflavik Intl

Tue 11/18

11:05 am-7:25 pm

1 stop8h 20m

$196

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Thu 11/27

9:20 pm-1:50 am

Nonstop4h 30m

Reykjavik Keflavik Intl

Sun 11/30

4:00 pm-8:20 pm

Nonstop4h 20m

$199

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 1/23

7:05 am-6:20 pm

1 stop11h 15m

Reykjavik Keflavik Intl

Wed 1/28

6:05 pm-10:45 pm

1 stop28h 40m

$220

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 11/12

7:00 pm-5:15 pm

1 stop22h 15m

Reykjavik Keflavik Intl

Sat 11/15

6:35 pm-1:30 pm

1 stop18h 55m

$225

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 10/24

9:20 pm-12:50 am

Nonstop4h 30m

Reykjavik Keflavik Intl

Fri 10/31

3:50 pm-8:15 pm

Nonstop4h 25m

$230

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 11/28

6:25 pm-10:05 am

1 stop15h 40m

Reykjavik Keflavik Intl

Mon 12/8

11:55 am-10:25 am

1 stop22h 30m

$260

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 12/26

9:15 pm-1:50 am

Nonstop4h 35m

Reykjavik Keflavik Intl

Mon 12/29

3:50 pm-8:15 pm

Nonstop4h 25m

$284

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sat 3/7

6:55 pm-3:25 pm

1 stop20h 30m

Reykjavik Keflavik Intl

Thu 3/19

3:40 pm-4:05 pm

1 stop24h 25m

$334

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sun 12/21

10:20 am-6:40 pm

1 stop8h 20m

Reykjavik Keflavik Intl

Fri 1/2

7:40 pm-10:25 am

1 stop14h 45m

$336

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Mon 3/9

8:05 am-3:15 pm

1 stop31h 10m

Reykjavik Keflavik Intl

Thu 3/19

11:30 am-4:05 pm

2 stops28h 35m

$344

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 round-trip 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 round-trip flight from Lisbon to Keflavik Intl. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Lisbon to Reykjavik Keflavik Intl Airport, you should look to book at least 28 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Lisbon to Reykjavik Keflavik Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Lisbon to Reykjavik Keflavik Intl Airport (average of $328). Flying from Lisbon to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $656). 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 September 15, 2025.

When flying from Lisbon to Reykjavik Keflavik Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Lisbon to Reykjavik Keflavik Intl Airport?

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 September 15, 2025.
See what other customers who have flown with PLAY from Lisbon to Reykjavik Keflavik Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
PLAY
7.0
Good
103 reviews

Crew

8.0

Boarding

7.3

Entertainment

4.7

Food

5.5

Comfort

6.5

Overall

7.0

Reviews

1 / 2
4.0
Okay

Lisa,Oct 2024

BER - KEF

I’ll never fly Play again. We were jammed into the tiniest spaces ever and they didn’t even give us water, tea, or coffee without charging. When we were coming in for a landing I thought we might never make it off the plane alive. The worst.
PLAY
7.0
Good
103 reviews
PLAY
7.0
Good
103 reviews

Crew

8.0

Boarding

7.3

Entertainment

4.7

Food

5.5

Comfort

6.5

Overall

7.0

Reviews

1 / 2
4.0
Okay

Lisa,Oct 2024

BER - KEF

I’ll never fly Play again. We were jammed into the tiniest spaces ever and they didn’t even give us water, tea, or coffee without charging. When we were coming in for a landing I thought we might never make it off the plane alive. The worst.

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?

    Located just 4.2 mi from the city center, Lisbon Humberto Delgado is the airport most travelers will use when flying to Reykjavik Keflavik Intl from Lisbon. Booking flights from Humberto Delgado (LIS) to Reykjavik Keflavik Intl should be relatively easy as there are 0 daily outbound flights to Reykjavik Keflavik Intl from 1 airline.

  • How long is the flight from Lisbon to Reykjavik Keflavik Intl Airport?

    easyJet, Icelandair, and PLAY can get you from Lisbon to Reykjavik Keflavik Intl Airport in just under 4h 30m. Your travel time can differ by up to 11h 20m. Lisbon and Reykjavik Keflavik Intl Airport are separated by a distance of 1826 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Lisbon to Reykjavik Keflavik Intl Airport round-trip?

    Flying on PLAY is currently your cheapest option to Reykjavik Keflavik Intl Airport, with prices starting at $168. Users have found that PLAY is 46% cheaper than the other options available to this destination.

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

    While on average a flight from Lisbon to Reykjavik Keflavik Intl Airport is generally $402, our data shows the cheapest flight currently is $140. When looking at the most popular route, (Lisbon Humberto Delgado - Reykjavik Keflavik Intl), you can expect to pay $377 for that flight.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from Lisbon to Reykjavik Keflavik Intl Airport (average of $328). Flying from Lisbon to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $656). 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

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

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Top airline flying from Lisbon to Keflavik Intl

Discover the top airline that operate flights from Lisbon to Keflavik Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$168Average$264FlexibilityNo cancel feeOn-timeN/A

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