Cheap flights from London Heathrow Airport to Reykjavik from $125

The month of January is, on average, the cheapest month to fly to Reykjavik Keflavik Intl Airport from London Heathrow Airport, with most prices found around $191. If you’re not able to fly to Reykjavik Keflavik Intl Airport in January, then November is your next best option. Flight prices from London Heathrow Airport to Reykjavik Keflavik Intl Airport during November average around $223.

The cheapest day to depart from London Heathrow Airport to Reykjavik Keflavik Intl Airport is on a Sunday when prices can be found for as low as $450. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Tuesday, with ticket prices averaging around $566.

The cheapest time of day to fly to Reykjavik Keflavik Intl Airport is in the evening when flights can be purchased for as low as $466. Flights at noon are often more expensive with an average ticket price of $649.

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

You are more likely to see cheaper flights to Reykjavik Keflavik Intl Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Reykjavik Keflavik Intl Airport for around $331 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Reykjavik Keflavik Intl Airport from London Heathrow Airport for as low as $245 on momondo.

There are 3 cabin classes available to choose from on London Heathrow Airport to Reykjavik Keflavik Intl Airport 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 London Heathrow Airport to Reykjavik Keflavik Intl Airport.

As of June 2026, prices for London Heathrow Airport to Reykjavik Keflavik Intl Airport flights are approximately 63% more expensive when compared to flights at the same time last year.

Historically, on average around 9% of flights between London and Reykjavik have experienced a delay on any given week. The average delay length over the past 12 months has been 110 minutes.

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

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

According to our data, British Airways 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.

The number of flights available between London Heathrow Airport and Reykjavik Keflavik Intl Airport is 11 per day as of June 2026. The most frequent departure time is 1:00PM, with 41% of daily flights leaving in the afternoon.

As of June 2026, there are 78 flights per week flying from London Heathrow Airport to Reykjavik Keflavik Intl Airport. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.