£109 Cheap Flights from Reykjavik (KEF) to Lisbon (LIS)

View £109 flight on Mon, 15 Dec 2025Opens in a new window

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

Prices were available within the past 7 days and start at £109 for one-way flights and £199 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fly Play
Mon, 14 Jul - Mon, 21 Jul
KEF
Reykjavik
LIS
Lisbon
£199 Return, found 2 days ago
£199
Return
found 2 days ago
Select Fly Play flight, departing Mon, 14 Jul from Reykjavik to Lisbon, returning Mon, 21 Jul, priced at £199 found 2 days ago
Lufthansa
Tue, 13 May - Sat, 17 May
KEF
Reykjavik
LIS
Lisbon
£204 Return, found 5 hours ago
£204
Return
found 5 hours ago
Select Lufthansa flight, departing Tue, 13 May from Reykjavik to Lisbon, returning Sat, 17 May, priced at £204 found 5 hours ago
Swiss International Air Lines
Sat, 10 May - Thu, 15 May
KEF
Reykjavik
LIS
Lisbon
£209 Return, found 5 hours ago
£209
Return
found 5 hours ago
Select Swiss International Air Lines flight, departing Sat, 10 May from Reykjavik to Lisbon, returning Thu, 15 May, priced at £209 found 5 hours ago
Lufthansa
Sun, 11 May - Thu, 15 May
KEF
Reykjavik
LIS
Lisbon
£211 Return, found 5 hours ago
£211
Return
found 5 hours ago
Select Lufthansa flight, departing Sun, 11 May from Reykjavik to Lisbon, returning Thu, 15 May, priced at £211 found 5 hours ago
Swiss International Air Lines
Sat, 10 May - Tue, 13 May
KEF
Reykjavik
LIS
Lisbon
£216 Return, found 5 hours ago
£216
Return
found 5 hours ago
Select Swiss International Air Lines flight, departing Sat, 10 May from Reykjavik to Lisbon, returning Tue, 13 May, priced at £216 found 5 hours ago
Swiss International Air Lines
Sat, 10 May - Sat, 17 May
KEF
Reykjavik
LIS
Lisbon
£219 Return, found 5 days ago
£219
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Sat, 10 May from Reykjavik to Lisbon, returning Sat, 17 May, priced at £219 found 5 days ago
Swiss International Air Lines
Sat, 10 May - Wed, 14 May
KEF
Reykjavik
LIS
Lisbon
£229 Return, found 5 hours ago
£229
Return
found 5 hours ago
Select Swiss International Air Lines flight, departing Sat, 10 May from Reykjavik to Lisbon, returning Wed, 14 May, priced at £229 found 5 hours ago
Lufthansa
Sat, 10 May - Sat, 17 May
KEF
Reykjavik
LIS
Lisbon
£232 Return, found 5 days ago
£232
Return
found 5 days ago
Select Lufthansa flight, departing Sat, 10 May from Reykjavik to Lisbon, returning Sat, 17 May, priced at £232 found 5 days ago
Iberia
Sun, 11 May - Wed, 14 May
KEF
Reykjavik
LIS
Lisbon
£234 Return, found 5 hours ago
£234
Return
found 5 hours ago
Select Iberia flight, departing Sun, 11 May from Reykjavik to Lisbon, returning Wed, 14 May, priced at £234 found 5 hours ago
Scandinavian Airlines
Tue, 25 Nov - Sun, 30 Nov
KEF
Reykjavik
LIS
Lisbon
£270 Return, found 2 days ago
£270
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Tue, 25 Nov from Reykjavik to Lisbon, returning Sun, 30 Nov, priced at £270 found 2 days ago
Flight from Reykjavik to Lisbon route information
Origin airport
Keflavik Intl.
Destination airport
Humberto Delgado
Airlines serving
Austrian Airlines, British Airways, Finnair, Fly Play, Iberia, Icelandair, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, TAP Portugal, World Ticket Ltd
Return price
£198
Distance
2925 km

Compare flights from Reykjavik to Lisbon easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Reykjavik to Lisbon. Operating between them 2 flights per day, 20 airlines cover the route. And Icelandair, TAP Air Portugal fly direct, getting you to Humberto Delgado in just 6hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Keflavik Intl. to Humberto Delgado.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Keflavik Intl. (KEF) to Humberto Delgado (LIS) 

The easiest way to view the best deals on flights from Reykjavik to Lisbon today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Keflavik Intl. to Humberto Delgado start at just £199 and range up to £270.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Reykjavik and Lisbon
  • booking your flight during July, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Reykjavik to Lisbon flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Keflavik Intl. to Humberto Delgado for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from KEF to Humberto Delgado Airport (LIS)?
The lowest price advertised for a round-trip flight from Reykjavík–Keflavík Airport to Lisbon/Portela Airport is £199. But you better act soon. This figure is based on fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Keflavik Intl. Airport (KEF) to LIS?
The majority of flights can be cancelled online, but each air carrier has its own terms and conditions. If you do decide to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from KEF to Humberto Delgado Airport (LIS) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Reykjavík–Keflavík Airport to Humberto Delgado Airport (LIS) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from KEF to Lisbon Airport?
It’s around 2,900 kilometres between KEF and Lisbon/Portela Airport, so expect to be flying for a while. Keep yourself entertained with things like crossword puzzles or a gripping book.
Which airlines fly direct from KEF to LIS?
You won’t find any airlines operating directly between Keflavik Intl. Airport (KEF) and Lisbon/Portela Airport, so be ready to make at least one stop on your journey. A layover, whether short or long, can be a nice way to break up a trip!
Are Keflavik Intl. Airport (KEF) to Lisbon Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices go up and down like a yo-yo, so there are no guarantees. While last-minute flight deals between KEF and Lisbon/Portela Airport are possible, it also makes sense to monitor prices well before you fly. In fact, some airlines publish their prices up to 12 months before the departure date. Expedia is continuously updating the biggest airfare bargains around, so check back often and be ready to secure your seat when the price dips.

Explore a world of travel with Expedia

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