Cheap flights from London Heathrow Airport to Prague from $146

The month of February is, on average, the cheapest month to fly to Prague from London Heathrow Airport, with most prices found around $239. If you’re not able to fly to Prague in February, then January is your next best option. Flight prices from London Heathrow Airport to Prague during January average around $263.

According to our data, Monday is the cheapest day to fly to Prague from London Heathrow Airport. The lowest ticket price found for a Monday departure recently was $137. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $337. These prices are subject to change though, so be sure to set up a Price Alert for flights to Prague.

Our most recent data shows that the best time of day to fly to Prague is at midday. Flights from London Heathrow Airport to Prague during this time can be as low as $174. Flights to Prague are more costly in the morning, with an average ticket price of $236. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Heathrow to Václav Havel Prague for the best London Heathrow - Václav Havel Prague flight prices

You are more likely to see cheaper flights to Prague from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Prague for around $339 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Prague from London Heathrow Airport for as low as $248 on momondo.

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

You could potentially save up to 17% on your flight if you consider stops on a London Heathrow Airport to Prague flight.

As of March 2026, prices for London Heathrow Airport to Prague flights are approximately 7% more expensive when compared to flights at the same time last year.

Historically, on average around 17% of flights between London and Prague have experienced a delay on any given week. The average delay length over the past 12 months has been 104 minutes.

Generally, flights departing in the morning 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. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 17% of their flights experiencing any sort of delay.

4 flights are operational daily from London Heathrow Airport to Prague as of March 2026. The most popular departure time for this route is 15:00, with 40% of flights per day taking off at midday.

The number of flights available between London Heathrow Airport and Prague is 28 per week as of March 2026. The most frequent departure day is Mon, with 46% of weekly flights leaving on this day.