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Keflavik Intl

$148+ 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — KEF
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$273
(Connections by easyJet)

One-way from

$148
(Iberia)

Popular in

June

Cheapest in

January

Average price

$472

Good round-trip deal

$248 or less

Good one-way deal

$296 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. 20% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Connections by easyJet deal was found by Cheapflights users on 6/9. 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 10/258:45 pmLIS - KEF
1 stop14h 50measyJet
Tue 10/286:35 pmKEF - LIS
1 stop19h 00measyJet
Deal found 6/9$273
This PLAY deal was found by Cheapflights users on 6/10. 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 7/189:20 pmLIS - KEF
Nonstop4h 30mPLAY
Fri 7/252:50 pmKEF - LIS
Nonstop4h 30mPLAY
Deal found 6/10$280
This PLAY deal was found by Cheapflights users on 6/11. 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.
Thu 10/95:55 amLIS - KEF
1 stop8h 50mMultiple Airlines
Sun 10/196:40 amKEF - LIS
1 stop15h 45mMultiple Airlines
Deal found 6/11$302
This Scandinavian Airlines deal was found by Cheapflights users on 6/11. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/94:55 pmLIS - KEF
1 stop17h 50mScandinavian Airlines
Sat 11/157:35 amKEF - LIS
1 stop10h 20mScandinavian Airlines
Deal found 6/11$370
This Lufthansa deal was found by Cheapflights users on 6/10. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:00 pmLIS - KEF
2 stops31h 10mLufthansa
Tue 10/144:10 pmKEF - LIS
2 stops30h 20mLufthansa
Deal found 6/10$373
This SWISS deal was found by Cheapflights users on 6/10. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:55 amLIS - KEF
1 stop10h 15mSWISS
Tue 10/144:10 pmKEF - LIS
1 stop21h 35mSWISS
Deal found 6/10$416
This LOT deal was found by Cheapflights users on 6/12. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/255:55 pmLIS - KEF
1 stop31h 00mLOT
Thu 9/412:45 amKEF - LIS
1 stop11h 40mLOT
Deal found 6/12$436
This Gotogate deal was found by Cheapflights users on 6/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1410:25 pmLIS - KEF
Nonstop4h 25mIcelandair
Sun 9/214:00 pmKEF - LIS
Nonstop4h 20mIcelandair
Deal found 6/9$514
This Priceline deal was found by Cheapflights users on 6/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3110:25 pmLIS - KEF
Nonstop4h 25mTAP AIR PORTUGAL
Sun 9/77:40 amKEF - LIS
1 stop13h 55mTAP AIR PORTUGAL
Deal found 6/12$524
This Austrian Airlines deal was found by Cheapflights users on 6/11. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/136:15 amLIS - KEF
2 stops18h 05mAustrian Airlines
Sun 6/1512:10 amKEF - LIS
2 stops22h 20mAustrian Airlines
Deal found 6/11$566

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 June 12, 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 10/25

8:45 pm-10:35 am

1 stop14h 50m

Reykjavik Keflavik Intl

Tue 10/28

6:35 pm-1:35 pm

1 stop19h 00m

$273

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Fri 7/18

9:20 pm-12:50 am

Nonstop4h 30m

Reykjavik Keflavik Intl

Fri 7/25

2:50 pm-8:20 pm

Nonstop4h 30m

$280

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Thu 10/9

5:55 am-1:45 pm

1 stop8h 50m

Reykjavik Keflavik Intl

Sun 10/19

6:40 am-11:25 pm

1 stop15h 45m

$302

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sun 11/9

4:55 pm-10:45 am

1 stop17h 50m

Reykjavik Keflavik Intl

Sat 11/15

7:35 am-5:55 pm

1 stop10h 20m

$370

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Wed 10/8

6:00 pm-12:10 am

2 stops31h 10m

Reykjavik Keflavik Intl

Tue 10/14

4:10 pm-11:30 pm

2 stops30h 20m

$373

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Tue 10/7

5:55 am-3:10 pm

1 stop10h 15m

Reykjavik Keflavik Intl

Tue 10/14

4:10 pm-2:45 pm

1 stop21h 35m

$416

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Mon 8/25

5:55 pm-11:55 pm

1 stop31h 00m

Reykjavik Keflavik Intl

Thu 9/4

12:45 am-1:25 pm

1 stop11h 40m

$436

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sun 9/14

10:25 pm-1:50 am

Nonstop4h 25m

Reykjavik Keflavik Intl

Sun 9/21

4:00 pm-9:20 pm

Nonstop4h 20m

$514

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sun 8/31

10:25 pm-1:50 am

Nonstop4h 25m

Reykjavik Keflavik Intl

Sun 9/7

7:40 am-10:35 pm

1 stop13h 55m

$524

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sat 10/25

12:30 pm-12:45 am

1 stop13h 15m

$148

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

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 June 9, 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 $659). 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 June 12, 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.

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 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 1.6 in.

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 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 12, 2025.
Norwegian
7.8
Good
233 reviews

Food

6.5

Entertainment

6.1

Boarding

7.7

Overall

7.8

Comfort

7.5

Crew

8.1

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
Norwegian
7.8
Good
233 reviews
Norwegian
7.8
Good
233 reviews

Food

6.5

Entertainment

6.1

Boarding

7.7

Overall

7.8

Comfort

7.5

Crew

8.1

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
LOT
7.6
Good
1,077 reviews
Norwegian
7.8
Good
233 reviews

Food

6.5

Entertainment

6.1

Boarding

7.7

Overall

7.8

Comfort

7.5

Crew

8.1

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
SWISS
7.5
Good
1,623 reviews
Norwegian
7.8
Good
233 reviews

Food

6.5

Entertainment

6.1

Boarding

7.7

Overall

7.8

Comfort

7.5

Crew

8.1

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
Transavia France
7.4
Good
348 reviews
Norwegian
7.8
Good
233 reviews

Food

6.5

Entertainment

6.1

Boarding

7.7

Overall

7.8

Comfort

7.5

Crew

8.1

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
Scandinavian Airlines
7.3
Good
1,387 reviews
Norwegian
7.8
Good
233 reviews

Food

6.5

Entertainment

6.1

Boarding

7.7

Overall

7.8

Comfort

7.5

Crew

8.1

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight

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.

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

    Flying on easyJet is currently your cheapest option to Reykjavik Keflavik Intl Airport, with prices starting at $273. Additional round-trip tickets that might be worth considering are offered by PLAY and Scandinavian Airlines, with the lowest prices starting at $280 and $370, respectively. Users have found that easyJet is 9% 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?

    The cheapest airlines for a one-way flight from Lisbon to Reykjavik Keflavik Intl Airport are Iberia ($148), Transavia ($183), and Norwegian ($219).

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

    The top 3 most reliable airlines when flying from Lisbon to Reykjavik Keflavik Intl Airport are Icelandair (100%), TAP AIR PORTUGAL (100%) and PLAY (0%).

  • 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 $334, our data shows the cheapest flight currently is $181. When looking at the most popular route, (Lisbon Humberto Delgado - Reykjavik Keflavik Intl), you can expect to pay $226 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 $659). 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.

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$168Average$251FlexibilityNo cancel feeOn-timeN/A

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