Cheap flights from Reykjavik Keflavik Intl Airport to London from $145

The cheapest month to fly to London from Reykjavik Keflavik Intl Airport is in October. Flight prices, which tend to average around $75, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Reykjavik Keflavik Intl Airport averaging around $77.

The cheapest day to depart from Reykjavik Keflavik Intl Airport to London is on a Thursday. Travelers who choose to depart for London on a Thursday will often find tickets for as low as $385. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $975. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from Reykjavik Keflavik Intl Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $183 when looking at flights departing in the evening. Flights to London are more costly in the morning, with an average ticket price of $666. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Reykjavik Keflavik Intl to London Luton for the best Reykjavik Keflavik Intl - London flight prices

There are 3 cabin classes available to choose from on Reykjavik Keflavik Intl Airport to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Reykjavik Keflavik Intl Airport to London.

Historically, on average around 10% of flights between Reykjavik and London have experienced a delay on any given week. The average delay length over the past 12 months has been 116 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Icelandair have had the least number of delays on this route over the last 12 months; with about 8% of their flights experiencing any sort of delay.

As of June 2026, 12 flights take off from Reykjavik Keflavik Intl Airport and land in London each day. The most common flight departure time for this route is 10:00AM, with 66% of daily flights taking off at noon.

The number of flights available between Reykjavik Keflavik Intl Airport and London is 90 per week as of June 2026. The most frequent departure day is Tue, with 23% of weekly flights leaving on this day.