Cheap flights from Prague to London from $73

The month of March is, on average, the cheapest month to fly to London Heathrow Airport from Prague, with most prices found around $134. If you’re not able to fly to London Heathrow Airport in March, then January is your next best option. Flight prices from Prague to London Heathrow Airport during January average around $173.

Our data shows that Thursday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $614. The most expensive day to fly to London Heathrow Airport is Tuesday, with ticket prices averaging around $986.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Prague to London Heathrow Airport in the evening for as low as $215. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $868.

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

You are more likely to see cheaper flights to London Heathrow Airport from Prague when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $221 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Prague for as low as $153 on momondo.

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

Historically, on average around 13% of flights between Prague and London have experienced a delay on any given week. The average delay length over the past 12 months has been 108 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon 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. Friday 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 13% of their flights experiencing any sort of delay.

As of August 2026, 4 flights take off from Prague and land in London Heathrow Airport each day. The most common flight departure time for this route is 2:00PM, with 64% of daily flights taking off in the afternoon.

The number of flights available between Prague and London Heathrow Airport is 34 per week as of August 2026. The most frequent departure day is Sat, with 38% of weekly flights leaving on this day.