Cheap flights from Prague to London from £49

In general, January is the cheapest month to fly from Prague to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £76. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from Prague averaging around £107.

On average, the least expensive day to fly to London Heathrow Airport from Prague is on a Saturday. momondo users have found tickets for Saturday departures for as low as £142. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £661.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Prague to London Heathrow Airport in the afternoon for as low as £106. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £405 on average. Flights to London Heathrow Airport from Prague in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 £142 when searching weeks before you fly. 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 £108 on momondo.

There are 3 cabin classes available to choose from on Václav Havel Prague to London Heathrow 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 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 13% of their flights experiencing any sort of delay.

As of March 2026, 5 flights take off from Prague and land in London Heathrow Airport each day. The most common flight departure time for this route is 10:00, with 72% of daily flights taking off at midday.

The number of flights available between Prague and London Heathrow Airport is 41 per week as of March 2026. The most frequent departure day is Wed, with 34% of weekly flights leaving on this day.