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$107+ Cheap flights from Keflavik Intl (KEF) to Lisbon (LIS)

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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — LIS
mar. 30 — abr. 61
dom. 3/30
dom. 4/6
1 adult, Economy
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Cheap flight deals from Keflavik Intl to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to Lisbon (LIS). 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 marzo 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$230
(Expedia)

One-way from

$107
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$368

Good round-trip deal

$276 or less

Good one-way deal

$182 or less
Provider with most accurate pricing for Reykjavik Keflavik Intl-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Reykjavik Keflavik Intl-Lisbon Humberto Delgado flights.
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From Reykjavik Keflavik Intl to Lisbon Humberto Delgado
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One-way flight from Reykjavik Keflavik Intl to Lisbon Humberto Delgado
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Highest demand for flights based on searches. 7% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Reykjavik Keflavik Intl to Lisbon Humberto Delgado.
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Price to beat on a one-way flight from Reykjavik Keflavik Intl to Lisbon Humberto Delgado.
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Find flight deals from Keflavik Intl to Lisbon

Cheapest flights from Keflavik Intl to Lisbon
Explore the most affordable flight options available from Keflavik Intl to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 25, 2025.

This Expedia deal was found by Cheapflights users on 3/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/283:10 pmKEF - LIS
Nonstop4h 30mPLAY
lun. 5/59:40 pmLIS - KEF
Nonstop4h 30mPLAY
Deal found 3/24$230
This Mytrip deal was found by Cheapflights users on 3/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/286:40 amKEF - LIS
1 stop29h 00mMultiple Airlines
lun. 5/510:10 pmLIS - KEF
2 stops26h 25mMultiple Airlines
Deal found 3/23$270
This Kiwi.com deal was found by Cheapflights users on 3/23. 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.
dom. 4/2712:25 amKEF - LIS
1 stop20h 40mLufthansa
lun. 5/57:30 amLIS - KEF
1 stop17h 05mLufthansa
Deal found 3/23$432
This Gotogate deal was found by Cheapflights users on 3/24. 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.
jue. 6/199:05 amKEF - LIS
1 stop28h 40mSWISS
lun. 6/305:55 amLIS - KEF
1 stop27h 40mSWISS
Deal found 3/24$446
This Mytrip deal was found by Cheapflights users on 3/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/2110:00 amKEF - LIS
2 stops37h 45measyJet
sáb. 1/36:25 amLIS - KEF
1 stop28h 10measyJet
Deal found 3/24$467
This Icelandair deal was found by Cheapflights users on 3/24. 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.
dom. 12/214:00 pmKEF - LIS
Nonstop4h 20mIcelandair
dom. 1/49:20 pmLIS - KEF
Nonstop4h 30mIcelandair
Deal found 3/24$475
This Priceline deal was found by Cheapflights users on 3/24. 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.
dom. 10/57:40 amKEF - LIS
1 stop13h 55mTAP AIR PORTUGAL
dom. 10/1210:25 pmLIS - KEF
Nonstop4h 25mTAP AIR PORTUGAL
Deal found 3/24$491
This WorldTicket deal was found by Cheapflights users on 3/24. 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 WorldTicket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/223:50 pmKEF - LIS
Nonstop4h 25mWorldTicket
vie. 1/29:15 pmLIS - KEF
Nonstop4h 35mWorldTicket
Deal found 3/24$545
This Priceline deal was found by Cheapflights users on 3/24. 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.
dom. 10/57:40 amKEF - LIS
2 stops31h 20mScandinavian Airlines
dom. 10/127:15 amLIS - KEF
1 stop27h 15mScandinavian Airlines
Deal found 3/24$546
This LOT deal was found by Cheapflights users on 3/24. 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.
dom. 12/212:45 amKEF - LIS
1 stop10h 30mLOT
dom. 1/42:15 pmLIS - KEF
1 stop11h 10mLOT
Deal found 3/24$582
This Austrian Airlines deal was found by Cheapflights users on 3/24. 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.
dom. 5/1812:10 amKEF - LIS
2 stops22h 20mAustrian Airlines
vie. 5/236:15 amLIS - KEF
2 stops18h 05mAustrian Airlines
Deal found 3/24$729
This Turkish Airlines deal was found by Cheapflights users on 3/24. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/1910:40 amKEF - LIS
2 stops22h 15mTurkish Airlines
vie. 5/234:30 pmLIS - KEF
2 stops23h 35mTurkish Airlines
Deal found 3/24$913

Cheapflights Fare Finder

Customize your flight search to find flights from Keflavik Intl to Lisbon 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 marzo 25, 2025.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Lisbon that are best for you.

Fly from

Keflavik Intl

Fly to

Lisbon

Route

Depart

Return

Price

ReykjavikLisbon

KEF - LIS

KEFLIS

Reykjavik Keflavik Intl

lun. 4/28

3:10 pm-8:40 pm

Nonstop4h 30m

Lisbon Humberto Delgado

lun. 5/5

9:40 pm-1:10 am

Nonstop4h 30m

$230

ReykjavikLisbon

KEF - LIS

KEFLIS

Reykjavik Keflavik Intl

lun. 4/28

6:40 am-12:40 pm

1 stop29h 00m

Lisbon Humberto Delgado

lun. 5/5

10:10 pm-11:35 pm

2 stops26h 25m

$270

ReykjavikLisbon

KEF - LIS

KEFLIS

Reykjavik Keflavik Intl

dom. 4/27

12:25 am-10:05 pm

1 stop20h 40m

Lisbon Humberto Delgado

lun. 5/5

7:30 am-11:35 pm

1 stop17h 05m

$432

ReykjavikLisbon

KEF - LIS

KEFLIS

Reykjavik Keflavik Intl

jue. 6/19

9:05 am-2:45 pm

1 stop28h 40m

Lisbon Humberto Delgado

lun. 6/30

5:55 am-8:35 am

1 stop27h 40m

$446

ReykjavikLisbon

KEF - LIS

KEFLIS

Reykjavik Keflavik Intl

mar. 4/8

12:15 am-10:55 pm

1 stop21h 40m

Lisbon Humberto Delgado

dom. 4/13

9:30 pm-8:40 am

1 stop12h 10m

$575

ReykjavikLisbon

KEF - LIS

KEFLIS

Reykjavik Keflavik Intl

lun. 4/28

7:35 am-5:45 pm

1 stop9h 10m

Lisbon Humberto Delgado

lun. 5/5

7:15 am-3:20 pm

1 stop9h 05m

$577

ReykjavikLisbon

KEF - LIS

KEFLIS

Reykjavik Keflavik Intl

lun. 5/19

9:40 am-9:45 pm

1 stop11h 05m

Lisbon Humberto Delgado

vie. 5/23

6:25 pm-11:50 pm

1 stop30h 25m

$608

ReykjavikLisbon

KEF - LIS

KEFLIS

Reykjavik Keflavik Intl

dom. 5/18

12:10 am-11:30 pm

2 stops22h 20m

Lisbon Humberto Delgado

vie. 5/23

6:15 am-11:20 pm

2 stops18h 05m

$729

ReykjavikLisbon

KEF - LIS

KEFLIS

Reykjavik Keflavik Intl

lun. 5/19

10:40 am-9:55 am

2 stops22h 15m

Lisbon Humberto Delgado

vie. 5/23

4:30 pm-3:05 pm

2 stops23h 35m

$913

ReykjavikLisbon

KEF - LIS

KEFLIS

Reykjavik Keflavik Intl

vie. 4/11

8:35 am-6:40 pm

1 stop9h 05m

Lisbon Humberto Delgado

lun. 4/21

5:00 am-5:30 pm

1 stop13h 30m

$1,006

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 24 results
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Compare providers for flights from Keflavik Intl to Lisbon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Keflavik Intl to Lisbon in March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Reykjavik Keflavik Intl Airport-Lisbon flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Reykjavik Keflavik Intl Airport-Lisbon flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Reykjavik Keflavik Intl Airport-Lisbon flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Reykjavik Keflavik Intl Airport-Lisbon flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Reykjavik Keflavik Intl Airport-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Keflavik Intl to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Keflavik Intl 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 Reykjavik Keflavik Intl Airport to Lisbon

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

Currently, January is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to Lisbon (average of $612). Flying from Reykjavik Keflavik Intl Airport to Lisbon in June is currently the most expensive (average of $1,219). 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 KEF to LIS?

Find hourly flight availability from Keflavik Intl to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated marzo 25, 2025.

One of the essential ways to save on airfare from Reykjavik Keflavik Intl Airport to Lisbon is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 37% on airfare.

Rainfall in Lisbon by month

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

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

Temperature in Lisbon by month

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

If weather is an important factor for your trip to Lisbon, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated marzo 25, 2025.
KLM
7.8
Good
1,318 reviews

Food

7.3

Overall

7.8

Boarding

7.8

Crew

8.4

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,318 reviews
KLM
7.8
Good
1,318 reviews

Food

7.3

Overall

7.8

Boarding

7.8

Crew

8.4

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
LOT
7.6
Good
1,061 reviews
KLM
7.8
Good
1,318 reviews

Food

7.3

Overall

7.8

Boarding

7.8

Crew

8.4

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Finnair
7.6
Good
1,266 reviews
KLM
7.8
Good
1,318 reviews

Food

7.3

Overall

7.8

Boarding

7.8

Crew

8.4

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Austrian Airlines
7.5
Good
769 reviews
KLM
7.8
Good
1,318 reviews

Food

7.3

Overall

7.8

Boarding

7.8

Crew

8.4

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
SWISS
7.5
Good
1,569 reviews
KLM
7.8
Good
1,318 reviews

Food

7.3

Overall

7.8

Boarding

7.8

Crew

8.4

Entertainment

7.1

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to Lisbon. 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 into for flights to Lisbon from Reykjavik Keflavik Intl?

    Most people fly into Lisbon Humberto Delgado (LIS) if they book a flight to Lisbon from Reykjavik Keflavik Intl. On average, Humberto Delgado has 0 inbound flights from Reykjavik Keflavik Intl per day from 2 airlines. Lisbon Humberto Delgado is conveniently located just 4.2 mi from Lisbon’s city center.

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

    Our cheapest airline available from Reykjavik Keflavik Intl Airport to Lisbon is PLAY. Our recent data shows that you can find tickets from as low as $230 on this airline. Additional options worth looking into are Lufthansa and SWISS, starting at $432 and $446 round-trip. PLAY is currently priced 39% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is easyJet, with whom users have recently found tickets for as low as $107. However, be on the lookout for offers from PLAY and Eurowings, as they are both options that can get you from Reykjavik Keflavik Intl Airport to Lisbon for a low price.

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

    While on average a flight from Reykjavik Keflavik Intl Airport to Lisbon is generally $271, our data shows the cheapest flight currently is $90. When looking at the most popular route, (Reykjavik Keflavik Intl - Lisbon Humberto Delgado), you can expect to pay $593 for that flight.

  • Can I find deals for flights from Keflavik Intl to Lisbon that include hotel bookings?

    Yes. In addition to deals on Keflavik Intl to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Keflavik Intl to Lisbon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Keflavik Intl to Lisbon.

  • Can I find deals for business class flights from Keflavik Intl to Lisbon?

    Yes. Cheapflights offers flight deals from Keflavik Intl to Lisbon 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 Reykjavik Keflavik Intl Airport to Lisbon?

    Currently, January is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to Lisbon (average of $612). Flying from Reykjavik Keflavik Intl Airport to Lisbon in June is currently the most expensive (average of $1,219). 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
Sintra
Almada
Beja
Costa da Caparica
Nazaré
Evora
Torres Vedras
Oeiras
Sesimbra
Fátima

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Keflavik Intl to Lisbon

Discover the top 2 airlines that operate flights from Keflavik Intl to Lisbon. 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 marzo 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$200Average$336FlexibilityNo cancel feeOn-time76%
PLAYCheapest$251Average$334FlexibilityNo cancel feeOn-timeN/A
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