£83 Find Cheap Flights from London Heathrow Airport to Serbia – Compare and Save

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 25/11. 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
Belgrade1 stop£162
Niš
Niš1 stop£128
Belgrade
Belgrade1 stop£162
Niš
Niš1 stop£128

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

Mon, 21 Sep - Wed, 7 Oct
Air Serbia Logo
13:30 - 01:40
LHR
-
INI
11h 10m
1 stop
Air Serbia Logo
04:35 - 12:30
INI
-
LHR
8h 55m
1 stop
£128Air Serbia
Mon, 19 Oct - Wed, 28 Oct
Air Serbia Logo
13:30 - 17:55
LHR
-
INI
27h 25m
1 stop
Air Serbia Logo
14:20 - 12:25
INI
-
LHR
23h 05m
1 stop
£133Air Serbia
Mon, 21 Sep - Sun, 4 Oct
Air Serbia Logo
13:30 - 01:40
LHR
-
INI
11h 10m
1 stop
Air Serbia Logo
05:00 - 12:30
INI
-
LHR
8h 30m
1 stop
£150Air Serbia
Mon, 28 Sep - Wed, 7 Oct
Air Serbia Logo
13:30 - 01:40
LHR
-
INI
11h 10m
1 stop
Air Serbia Logo
04:35 - 12:30
INI
-
LHR
8h 55m
1 stop
£152Air Serbia
Wed, 9 Sep - Wed, 16 Sep
Lufthansa Logo
07:25 - 16:30
LHR
-
BEG
8h 05m
1 stop
Lufthansa Logo
13:05 - 19:40
BEG
-
LHR
7h 35m
1 stop
£162Lufthansa
Mon, 17 Aug - Thu, 20 Aug
Lufthansa Logo
07:25 - 16:30
LHR
-
BEG
8h 05m
1 stop
Lufthansa Logo
17:15 - 22:40
BEG
-
LHR
6h 25m
1 stop
£162Lufthansa
Wed, 9 Sep - Wed, 16 Sep
Lufthansa Logo
07:25 - 16:30
LHR
-
BEG
8h 05m
1 stop
Lufthansa Logo
13:05 - 19:40
BEG
-
LHR
7h 35m
1 stop
£163Lufthansa
Sat, 21 Nov - Sat, 28 Nov
KLM Logo
14:05 - 23:25
LHR
-
BEG
8h 20m
1 stop
KLM Logo
12:35 - 17:00
BEG
-
LHR
5h 25m
1 stop
£167KLM
Fri, 20 Nov - Mon, 23 Nov
KLM Logo
06:30 - 11:55
LHR
-
BEG
4h 25m
1 stop
KLM Logo
06:05 - 10:45
BEG
-
LHR
5h 40m
1 stop
£167KLM
Fri, 27 Nov - Mon, 30 Nov
KLM Logo
17:50 - 23:25
LHR
-
BEG
4h 35m
1 stop
KLM Logo
12:35 - 19:15
BEG
-
LHR
7h 40m
1 stop
£167KLM
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 5 days was to Belgrade, at £165 return. The most popular route is from London Heathrow Airport (LHR) to Belgrade (BEG), and the cheapest return airline ticket found on this route in the last 5 days was £165.

Can I save money by flying with a stopover from London Heathrow Airport to Serbia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £252, prices are generally cheapest when you fly direct.

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 July, when tickets cost £93 (return) on average. On the other hand, the most expensive months are December and May, when the average cost of return tickets is £294 and £271 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 2 weeks before departure.

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

Low season

May

Cheapest flight

£83
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly and prices are also 56% 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 3 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.
6.8
LufthansaOverall score based on 8163 reviews
7.0Boarding
6.3Food
6.4Entertainment
6.8Comfort
7.6Crew
Airline reviews

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

10.0 ExcellentThomas, Feb 2026
LHR - EWR
Read more Lufthansa reviews

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

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.

Not what I expected for the last leg of a $5100 business class experience. Boarding was a nightmare. The flight was delayed and I had to keep checking my email to ensure I was at the right gate since the airline or the terminal had no clue until 15 mins prior to boarding. Food was gross, limited drink options.

Flights scheduled with impossible connections - Lufthansa apparently believes it takes 7mins to change terminals, go through passport control, re-clear security and walk 1.8kms…..and everything will work perfectly (which it never does at Frankfurt). No staff on hand to assist with transfers on delayed flights. No transfer guidance provided by app. No compensation offered for 6hr delay to connecting flight.

Crew were friendly and very helpful Plane was clean and the legroom is standard. Overall a good flight, no complaints.

I did not like that they failed to put my luggage on my connecting flight to Athens. I was promised it would be located and delivered within 2 days but later told there was no information on its location. This caused me to have unplanned for expenses because I then had to purchase new clothing to wear on my vacation. I did not receive my luggage until my return flight home. I will not be traveling with them again.

No internet, very narrow seats insufficient room for three passengers with encroachment.

Other than problems with checking in and uploading passport info everything was great. It would be nice to be able to manually input passport info. Often while traveling the bandwidth has problems uploading pictures

Give at least coffee or juice as it is an international flight.

Tiny, cramped seats with minimum leg room and hard armrests. Basic needs like a seat and luggage came with an additional charge. Budget airline amenities with premium airlune cost. I won't use this airline again.

Far easier than I expected it to be. Checked in online & had our boarding passes emailed through. Straight through security & boarded on time. No issues.

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

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

4 hr delay and only told less than 2hrs before. Only given water and nuts on the flight as complimentary service. Left to wait in rain before boarding.

To be honest I did not like anything. Communication to why my flight was cancelled mid air 2 and half hours into my flight. Customer service desk were not helpful with providing information or a solution on what can be done.

I have been treated unacceptably by WizzAir aircraft crew in a previous flight, they threatened me and abused me, and I received an OFFICIAL written apology, but only two (2) months later. This flight had no such unacceptable behaviour, but it's not nice to be left waiting in the walkway (from gate to aircraft) for a long time, just so that the 'boarding' appears to be early, even if actual departure is not.

What I liked new airplane Sitting was extremely uncomfortable! Crew not smiley at all Always chewing gum

The flight was cancelled just 4 hours before the take off...

No food on board. Not comfortable. Had to move seats was delayed more than 3 hours.

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.

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.

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

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!

Plane was late causing me to miss connection. Flight the next late causing me to miss the rebooked connection. Air seberia I think is more late than on time

This was my connection flight that was moved time ahead for a almost entire day so I lost it and I had to purchase new ticket once I landed in Copenhagen since nobody wanted to take responsibility for moving flight in that way so it’s impossible to make it. Very poor job by Underpricer, Air Serbia and SAS.

I purchased an exit row seat and priority boarding, about 3 months in advance. Without any communication whatsoever, my seat was moved to row 2, when I checked my reservation 2-3 days before departure. As no exit row seats were available anymore, I selected a seat 1C. However, once at the airport, I was issued maybe the worst possible seat, 29E, middle seat, one row before the last. It is not worth my time to request the refund on the ancillary purchase, I am simply done flying with Air Serbia. Also there was no boarding process to speak of at all, or online check in.

Lacking online check in, had to wait an hour in order to check in on the counter even without language.

Seats are very small and uncomfortable so such a long flight. My tray table was broken and taped up. Flight attendant untaped it to put my tray on. I taped it back up when done. The armrest between seats was broken and metal exposed. I will not book Air Serbia again.

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

Information on your arrival and departure airports