Cheap flights from Serbia to London from £18

The cheapest month to fly to London from Serbia is in June. Flight prices, which tend to average around £81, are often lower during this time because this is during the off-season. The month of May is another great option to travel to London, with average flight prices from Serbia averaging around £89.

Our data shows that Friday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £42. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Serbia to London for around £117.

Fly from Belgrade Nikola Tesla to London Luton for the best Serbia - London flight prices

There are 2 cabin classes available to choose from on Serbia to London 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 18% of flights between Serbia and London have experienced a delay on any given week. The average delay length over the past 12 months has been 129 minutes.

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

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

According to our data, airBaltic have had the fewest delays on this route over the last 12 months, with about 6% of their flights experiencing any sort of delay.

The number of flights available between Serbia and London is 2 per day as of February 2026. The most frequent departure time is 10:00, with 91% of daily flights leaving at midday.

The number of flights available between Serbia and London is 18 per week as of February 2026. The most frequent departure day is Fri, with 22% of weekly flights leaving on this day.