£69 Find Cheap Flights from London Heathrow Airport to Serbia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Serbia departing on 24/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Heathrow to Serbia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Belgrade
Belgradedirect£137
Niš
Niš2 stops£291
Belgrade
Belgradedirect£137
Niš
Niš2 stops£291

Book Cheap Heathrow to Serbia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Serbia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Serbia

Fri, 27 Feb - Sun, 1 Mar
Air Serbia Logo
13:20 - 17:05LHR-BEG
2h 45mdirect
Air Serbia Logo
10:15 - 12:20BEG-LHR
3h 05mdirect
£137Air Serbia
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Sat, 29 Nov - Sat, 6 Dec
Multiple Airlines Logo
09:55 - 00:50LHR-BEG
13h 55m1 stop
Multiple Airlines Logo
18:40 - 09:10BEG-LHR
15h 30m1 stop
£139Multiple Airlines
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Wed, 26 Nov - Wed, 3 Dec
Air Serbia Logo
13:20 - 17:00LHR-BEG
2h 40mdirect
Air Serbia Logo
10:20 - 12:20BEG-LHR
3h 00mdirect
£143Air Serbia
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Thu, 11 Dec - Wed, 17 Dec
Multiple Airlines Logo
09:55 - 00:50LHR-BEG
13h 55m1 stop
Multiple Airlines Logo
10:20 - 12:20BEG-LHR
3h 00mdirect
£145Multiple Airlines
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Sat, 13 Dec - Sat, 20 Dec
LOT Logo
06:30 - 16:35LHR-BEG
9h 05m1 stop
LOT Logo
17:15 - 17:20BEG-LHR
25h 05m1 stop
£150LOT
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Thu, 11 Dec - Wed, 17 Dec
Lufthansa Logo
07:40 - 17:05LHR-BEG
8h 25m1 stop
Lufthansa Logo
13:30 - 18:35BEG-LHR
6h 05m1 stop
£157Lufthansa
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Fri, 28 Nov - Wed, 3 Dec
Lufthansa Logo
07:40 - 12:45LHR-BEG
4h 05m1 stop
Lufthansa Logo
13:30 - 19:35BEG-LHR
7h 05m1 stop
£158Lufthansa
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Fri, 21 Nov - Wed, 17 Dec
KLM Logo
17:05 - 23:25LHR-BEG
5h 20m1 stop
KLM Logo
06:05 - 10:45BEG-LHR
5h 40m1 stop
£168KLM
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Thu, 27 Nov - Thu, 4 Dec
KLM Logo
11:45 - 23:25LHR-BEG
10h 40m1 stop
KLM Logo
12:35 - 17:00BEG-LHR
5h 25m1 stop
£169KLM
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Thu, 27 Nov - Sat, 29 Nov
LOT Logo
18:20 - 13:15LHR-BEG
17h 55m1 stop
LOT Logo
17:15 - 09:35BEG-LHR
17h 20m1 stop
£171LOT
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Booking Insights

KAYAK's insights & trends for Heathrow to Serbia flights

Get data-powered insights and trends into flights from Heathrow to Serbia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest London Heathrow Airport to Serbia flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Serbia from London Heathrow Airport found in the last 72 hours was to Belgrade, at £99 return. The most popular route is from London Heathrow Airport (LHR) to Belgrade (BEG), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £99.

What is the cheapest month to fly from London Heathrow Airport to Serbia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Serbia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Serbia is August, when tickets cost £94 (return) on average. On the other hand, the most expensive months are December and October, when the average cost of return tickets is £238 and £222 respectively.

How far in advance should I book a flight from London Heathrow Airport to Serbia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Serbia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from London Heathrow Airport to Serbia, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to Serbia

Low seasonJanuary
Cheapest flight£71
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly and prices are also 43% lower on average.
Flight from London Heathrow Airport to Belgrade

FAQs - booking Serbia flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Serbia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Serbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Serbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to Serbia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Serbia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport to Serbia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Serbia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London Heathrow Airport to Serbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines flying from Heathrow to Serbia

 
Need help choosing which airline to fly with from Heathrow to Serbia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
LOTOverall score based on 1135 reviews
7.5Comfort
6.9Entertainment
7.1Food
7.6Boarding
8.2Crew
Airline reviews

Flight was delayed for a hour from Warsaw, not sure why. When we landed in Chicago, plane was still on the runway for about half a hour. Took a while to get off.

8.0 ExcellentMatthew, Oct 2025WAW - ORD
Read more LOT reviews

Flight was delayed for a hour from Warsaw, not sure why. When we landed in Chicago, plane was still on the runway for about half a hour. Took a while to get off.

No WiFi and ok comfort in business class. Home safe I guess that’s all that really matters.

Boarding was delayed for an unknown reason for more than an hour. While the airplane was at the gate, the boarding time was moved by 10-20 minutes every 15 minutes. No entertainment on the plane.

The flight itself was pleasant and on time. Crew was very good. However, breakfast food was barely acceptable. Unfortunately this satisfies the recent industry standards. I asked for a sandwich with ham (another choice was cheese), but received a sandwich with roast beef.

During the flight, the fleas biting me in the plane.

Delay rushed to the next plane and bags didn’t arrive in chicago

Boarding could've been improved a bit, the rest is excellent.

Agents helping disable person doesnt know connections to Poland and after 9 agents helping and 2hours ,we made it to proper terminal. Polish Dreamliner its Polish nightmare liner with so narrow seats and no room under front seat for bag and feet,in economy class.To upgrade, to higher standart cost an arm and leg ,even there are empty seats No good experience overall

The crew and flight were amazing . However , my bag’s locker got broken and no refund provided . Everything else was amazing except this bad incident that ruined my experience

Checking in took very long for whatever reason. Flight comfort these days is always poor so… Crew was great thought!

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

Boarding procedure should have the crew and personnel who are more trained, in a sense of precisely knowing what can be done and what cannot. They do not have the exact information on what you should do in the first place, also the boarding itself was slightly delayed due to the aircraft "not being ready".

..it was short.. I didn't like that my red bag went out completely stained with black stains..That's probably some airport staff bad handling but still

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

Both flights were delayed over 1 hour. And I had to pay for seats, even though my reservation supposedly included free seat selection.

Hate their old flights, boatding, food and services. Very poor quality

The plane was late (as was my flight out from Birmingham the day before)

We were charged for luggage, and our ticket was with Lufthansa and was supposed to include luggage fees. So our experience was a bit bad. Also, the flight was about 45 minutes late arriving.

The flight was delayed by an hour. Made the connection uncomfortably tight.

Basic, 737 Boeing, business class is just an economy class seat with blocked middle seat (European standard).

Entertainment is nonexistent. Food might have been good, however due to language barriers I didn’t get to have any food. Flat bed seats and layout was excellent. Crew efficient and straightforward, but lacking any western style approach. Not that I’d expect anything else, but one could have hoped.

Unorganized, late and they lost my bag for several days.

Flight took very long to even get checked in for, everything was late and written out by hand. My luggage was lost for several days and it was the most unorganized flight experience of my life.

Delaying more than 5 hours from Belgrade to Tirana Information very rude to questions

It's the shortest trip one could get from BEG anywhere, so it was fine.

I paid for luggage when I bought the ticket but I could not board until I paid for luggage again. The fault lays at the feet of eDreams, the company that booked our flight. Sorry, Air Serbia, but it did affect the boarding process.

They had lost my ticket and despite showing them the confirmation email with the itinerary and receipt of payment for the flight they could not put me on that flight and rescheduled departure postponing it by a whole week

Kraljevo is very convenient airport. It's brand new, small.and efficient. Great job!

Long delay (6 hour late departure, not informative enough to provide up to date info on flight, poor food quality

Great crew. Seats do not recline :( but it is budget so i should have known. Otherwise comfy leather chair. Slight slim chair but again budget so expected. No entertainment do makes journey boring. Recommend packing plenty of snacks and games or download plenty of films and music in your device. Staff excellent. Clean flight. On time.

Both of my flights had issues with their time slot with air traffic control, so they left over an hour late and the flight back to London was delayed by over an hour. Please provide more clarity about baggage requirements on booking sites, your website and within the app. I had to pay for extra bags at the airport when departing London, because they didn’t specify that your carry on bag can only be a backpack and not a trolley, my trolley bag fit the size requirements of the backpack but still I was made to pay

The crew at Check-in was very helpful. It’s was appreciate.

It’s a budget airline. You get what you pay for. They insisted on getting us out of the gate and into our slot on time. They got us to the destination safely. Aircraft was clean and well maintained. What more could we want

Half an hour delay. Squeezed into a small Departure Lounge with very few seats. Noisy flight with screaming unruly kids. Loud IPads and Phones. Heaven!

Were delayed in the airport for 5 hours with no explanation. Flight kept getting delayed by an hour at a time and wizz air staff were no where to be found

The flight was delayed 5 hours and I'm and invalid,I wan a refund for this

The cabin crew on that flight were super fantastic and super helpful. They were so polite and considerate that i felt i travelled with a 5star airline.

Delayed delayed delayed - always with Wizzair. Staff were friendly and well mannered but clearly the company is unorganized and the aircrafts are outdated.

It's a budget airline. Great for short flight. Smooth landing.

Everything you need to know for your flight from Heathrow to Serbia

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