$158 Cheap Flights from Reykjavik (KEF) to Lisbon (LIS)

View $158 flight on Thu, Aug 20, 2026Opens in a new window

Popular airlines from Reykjavik–Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS)

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Cheap Flights from Reykjavik to Lisbon (KEF-LIS)

Prices were available within the past 7 days and start at $158 for one-way flights and $254 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Sat, Dec 6 - Fri, Dec 12
KEF
Reykjavik
LIS
Lisbon
$254 Roundtrip, found 3 days ago
$254
Roundtrip
found 3 days ago
Select Swiss International Air Lines flight, departing Sat, Dec 6 from Reykjavik to Lisbon, returning Fri, Dec 12, priced at $254 found 3 days ago
Swiss International Air Lines
Sat, Dec 6 - Fri, Dec 12
KEF
Reykjavik
LIS
Lisbon
$274 Roundtrip, found 3 days ago
$274
Roundtrip
found 3 days ago
Select Swiss International Air Lines flight, departing Sat, Dec 6 from Reykjavik to Lisbon, returning Fri, Dec 12, priced at $274 found 3 days ago
Scandinavian Airlines
Sun, Feb 1 - Sun, Feb 8
KEF
Reykjavik
LIS
Lisbon
$282 Roundtrip, found 5 days ago
$282
Roundtrip
found 5 days ago
Select Scandinavian Airlines flight, departing Sun, Feb 1 from Reykjavik to Lisbon, returning Sun, Feb 8, priced at $282 found 5 days ago
Scandinavian Airlines
Wed, Feb 11 - Fri, Feb 20
KEF
Reykjavik
LIS
Lisbon
$288 Roundtrip, found 3 days ago
$288
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Wed, Feb 11 from Reykjavik to Lisbon, returning Fri, Feb 20, priced at $288 found 3 days ago
Lufthansa
Fri, Jan 16 - Fri, Jan 23
KEF
Reykjavik
LIS
Lisbon
$288 Roundtrip, found 5 days ago
$288
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Fri, Jan 16 from Reykjavik to Lisbon, returning Fri, Jan 23, priced at $288 found 5 days ago
Swiss International Air Lines
Sat, Dec 6 - Fri, Dec 12
KEF
Reykjavik
LIS
Lisbon
$294 Roundtrip, found 3 days ago
$294
Roundtrip
found 3 days ago
Select Swiss International Air Lines flight, departing Sat, Dec 6 from Reykjavik to Lisbon, returning Fri, Dec 12, priced at $294 found 3 days ago
Scandinavian Airlines
Tue, Feb 10 - Fri, Feb 20
KEF
Reykjavik
LIS
Lisbon
$297 Roundtrip, found 3 days ago
$297
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Tue, Feb 10 from Reykjavik to Lisbon, returning Fri, Feb 20, priced at $297 found 3 days ago
Swiss International Air Lines
Sat, Dec 6 - Thu, Dec 11
KEF
Reykjavik
LIS
Lisbon
$302 Roundtrip, found 3 days ago
$302
Roundtrip
found 3 days ago
Select Swiss International Air Lines flight, departing Sat, Dec 6 from Reykjavik to Lisbon, returning Thu, Dec 11, priced at $302 found 3 days ago
Icelandair
Sun, Dec 14 - Thu, Feb 5
KEF
Reykjavik
LIS
Lisbon
$366 Roundtrip, found 1 day ago
$366
Roundtrip
found 1 day ago
Select Icelandair flight, departing Sun, Dec 14 from Reykjavik to Lisbon, returning Thu, Feb 5, priced at $366 found 1 day ago
LOT-Polish Airlines
Thu, Nov 27 - Sat, Dec 6
KEF
Reykjavik
LIS
Lisbon
$401 Roundtrip, found 1 hour ago
$401
Roundtrip
found 1 hour ago
Select LOT-Polish Airlines flight, departing Thu, Nov 27 from Reykjavik to Lisbon, returning Sat, Dec 6, priced at $401 found 1 hour ago

Find the cheapest month to fly from Reykjavik (KEF) to Lisbon (LIS)

January is typically the cheapest month to fly

From $194 - $690 per traveler.

Alternative airports near Lisbon

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Humberto Delgado LIS. Cheapest option available. Flights from $776
LIS
Humberto Delgado
Cheapest
Flights from $776

Frequently asked questions

How much does a flight from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS) cost?
Secure a cheap one-way flight from $158 or cheap return flight from $254 from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS)?
December is the cheapest month to fly from KEF to LIS. Timing your trip outside of the busy season is often the key to finding better deals on flights.
Which airlines fly direct from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS)?
You can fly nonstop from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS) on an Icelandair flight.
What is the cheapest airline that flies from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS)?
Icelandair and Fly Play are some well-known airlines offering competitive fares. Keep in mind that flight prices from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS) can vary depending on demand, travel dates and how early you book. With Expedia's filter tool, you can easily find a KEF to LIS flight that suits your plans and budget.
How many flights per day from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS)?
On average, Keflavik Intl. Airport (KEF) has 4 direct flights to Humberto Delgado Airport (LIS) every week. If you're looking for more options, use Expedia's filters to look for flights with one or two stops. Squeeze in a visit to another city or just break up your journey.
What are the most popular departure times for flights from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS)?
Flights between KEF and LIS are their busiest at 3 PM. If you'd like a quieter trip and potentially cheaper tickets, choose a time outside the usual busy windows.
What day of the week has the most flights from KEF to LIS?
Travel on a Friday if you're looking for the best choice of flights from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS).
What is the earliest flight from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS)?
The earliest flight leaving from Keflavik Intl. Airport (KEF) is at around 3:50PM UTC+0. Board this plane and you'll arrive at Humberto Delgado Airport (LIS) at approximately 8:15PM UTC+0. The total flight duration is 4h 25m.
How long does it take to fly from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS)?
Flights from KEF to LIS have an average travel time of 4 hours and 22 minutes. The total distance between the two is 1,850 mi.
What is the best time to fly from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS)?
Opt for a flight from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Lisbon District from Keflavik Intl. Airport (KEF)?
Humberto Delgado Airport (LIS) is the only airport in Lisbon District with direct flights from Keflavik Intl. Airport (KEF). Consider the available options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS) last-minute?
Last-minute fares from KEF to LIS are generally more expensive. To lock in the best rates, start searching for flights as soon as possible. That said, if your travel plans are flexible, it's possible to find a cheap fare just before your departure.
Is it cheaper to book a KEF to LIS flight and hotel package?
Securing a KEF to LIS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our impressive range of stays and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Keflavik Intl. Airport (KEF) to Humberto Delgado Airport (LIS)?
If you booked your KEF to LIS flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Travel information

Origin airport
Keflavik Intl.
Destination airport
Humberto Delgado
Airlines serving
Air Baltic, Austrian Airlines, British Airways, Finnair, Icelandair, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal
Roundtrip price
$254
Distance
1828 mi
Average flight time
5 hours 20 mins

Book with confidence

Reykjavik to Lisbon Flights

The cheapest times to fly from Reykjavik to Lisbon

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Reykjavik to Lisbon are during the month of December. You can find some of the cheapest flights from Reykjavik to Lisbon with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Reykjavik to Lisbon

Sunday is one of the best days to book for cheap flights from Reykjavik to Lisbon: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Reykjavik to Lisbon

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Reykjavik to Lisbon in 2025. You can also book with separate airlines for your outbound and return journeys, from $158 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Reykjavik to Lisbon flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Reykjavik to Lisbon airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Reykjavik to Lisbon Flights

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*Available to One Key members.