Cheap flights from Knock to London from €15

In general, May is the cheapest month to fly from Knock to London. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €39. If you are unable to visit London during the month of May, then departing from Knock during the month January is also very affordable. Most momondo users find prices during this month for around €43.

Our data shows that Thursday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as €113. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Knock to London for around €758.

The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as €77. In contrast, the most expensive time of day to depart to London is at midday when prices are around €205.

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

There are 2 cabin classes available to choose from on Knock Intl to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of March 2026, prices for Knock to London flights are approximately 13% more expensive when compared to flights at the same time last year.

Historically, on average around 16% of flights between Knock and London have experienced a delay on any given week. The average delay length over the past 12 months has been 89 minutes.

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

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

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

1 flights are operational daily from Knock to London as of March 2026. The most popular departure time for this route is 13:00, with 92% of flights per day taking off in the afternoon.

8 flights are operational weekly from Knock to London as of March 2026. The most popular departure day for this route is Sat, with 63% of flights per week taking off on this day.