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Keflavik Intl

$143+ 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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — KEF
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 May, booked 28 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap 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 January 29, 2026.

This Connections by easyJet deal was found by Cheapflights users on 1/27. 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.
Thu 4/233:55 pm
LIS
-
KEF
1 stop17h 15m
easyJet
Sun 4/269:10 am
KEF
-
LIS
1 stop23h 45m
easyJet
Deal found 1/27$260
This Mytrip deal was found by Cheapflights users on 1/28. 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.
Sat 3/149:05 pm
LIS
-
KEF
2 stops21h 50m
Multiple Airlines
Sat 3/2110:20 am
KEF
-
LIS
2 stops22h 45m
Multiple Airlines
Deal found 1/28$263
This Mytrip deal was found by Cheapflights users on 1/28. 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.
Wed 2/2510:20 am
LIS
-
KEF
1 stop8h 05m
Multiple Airlines
Wed 3/411:55 am
KEF
-
LIS
1 stop9h 50m
Multiple Airlines
Deal found 1/28$264
This Connections by easyJet deal was found by Cheapflights users on 1/28. 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 3/147:50 pm
LIS
-
KEF
1 stop14h 40m
easyJet
Sat 3/2111:05 am
KEF
-
LIS
1 stop22h 40m
easyJet
Deal found 1/28$294
This Connections by easyJet deal was found by Cheapflights users on 1/26. 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 10/162:00 pm
LIS
-
KEF
1 stop28h 00m
easyJet
Mon 10/196:40 pm
KEF
-
LIS
1 stop17h 30m
easyJet
Deal found 1/26$295
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
Thu 3/2610:25 am
LIS
-
KEF
1 stop6h 50m
Multiple Airlines
Thu 4/95:15 pm
KEF
-
LIS
2 stops29h 10m
Multiple Airlines
Deal found 1/29$296
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
Thu 3/2610:25 am
LIS
-
KEF
1 stop6h 50m
Multiple Airlines
Tue 4/77:50 pm
KEF
-
LIS
2 stops34h 00m
Multiple Airlines
Deal found 1/29$297

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$260
(Connections by easyJet)

One-way from

$143
(Mytrip)

Popular in

July

Cheapest in

January

Average price

$209

Good round-trip deal

$556 or less

Good one-way deal

$355 or less
Provider with most accurate pricing for Lisbon Humberto Delgado-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Reykjavik Keflavik Intl flights.
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From Lisbon Humberto Delgado to Reykjavik Keflavik Intl
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One-way flight from Lisbon Humberto Delgado to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($131 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
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.
Search Deals

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 January 29, 2026.
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 3/14

7:50 pm-10:30 am

1 stop14h 40m

Reykjavik Keflavik Intl

Sat 3/21

11:05 am-9:45 am

1 stop22h 40m

$294

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Mon 3/2

5:00 am-7:05 pm

1 stop14h 05m

Reykjavik Keflavik Intl

Sun 3/8

8:05 pm-10:35 am

1 stop14h 30m

$402

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Thu 2/19

7:00 am-5:15 pm

1 stop10h 15m

Reykjavik Keflavik Intl

Thu 2/26

10:00 am-7:00 pm

1 stop9h 00m

$416

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sat 4/4

7:00 am-11:35 pm

1 stop17h 35m

Reykjavik Keflavik Intl

Thu 4/9

8:20 am-10:55 pm

1 stop13h 35m

$448

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Tue 3/3

5:00 am-6:00 pm

1 stop13h 00m

Reykjavik Keflavik Intl

Sat 3/7

8:05 pm-10:35 am

1 stop14h 30m

$449

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Tue 3/31

9:35 pm-9:15 am

1 stop12h 40m

Reykjavik Keflavik Intl

Sat 4/4

1:00 am-12:00 pm

1 stop10h 00m

$466

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Tue 5/5

4:25 pm-10:25 am

2 stops19h 00m

Reykjavik Keflavik Intl

Fri 5/8

7:35 am-3:35 pm

2 stops31h 00m

$494

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Sun 3/29

11:55 pm-5:35 pm

2 stops18h 40m

Reykjavik Keflavik Intl

Mon 4/6

10:30 am-12:15 am

1 stop12h 45m

$521

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Mon 3/30

4:55 pm-10:15 am

2 stops18h 20m

Reykjavik Keflavik Intl

Sat 4/4

5:10 pm-4:05 pm

1 stop21h 55m

$537

LisbonReykjavik

LIS - KEF

LISKEF

Lisbon Humberto Delgado

Mon 3/30

4:55 pm-10:15 am

2 stops18h 20m

Reykjavik Keflavik Intl

Fri 4/3

7:40 am-8:55 am

1 stop24h 15m

$538

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 21 results
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  • Most accurate provider: When it comes to deals on Lisbon-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Lisbon-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Lisbon-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Lisbon-Reykjavik Keflavik Intl Airport 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 Lisbon-Reykjavik Keflavik Intl Airport 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 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 January 23, 2026.

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, February is the cheapest month in which you can book a flight from Lisbon to Reykjavik Keflavik Intl Airport (average of $127). Flying from Lisbon to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $330). 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.

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 0 different airlines.

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

    easyJet and KLM can get you from Lisbon to Reykjavik Keflavik Intl Airport in just under 14h 05m. Your travel time can differ by up to 35m. 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 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 $890, our data shows the cheapest flight currently is $307. When looking at the most popular route, (Lisbon Humberto Delgado - Reykjavik Keflavik Intl), you can expect to pay $229 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, February is the cheapest month in which you can book a flight from Lisbon to Reykjavik Keflavik Intl Airport (average of $127). Flying from Lisbon to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $330). 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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