LHR - TRS

£79 Find Cheap Flights from London Heathrow Airport to Trieste

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 Trieste departing on 12/1. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Trieste

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Trieste, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Trieste, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Heathrow to Trieste (LHR-TRS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Trieste 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 Trieste

Thu, 27 Nov - Thu, 4 Dec
Lufthansa Logo
13:30 - 22:40LHR-TRS
8h 10m1 stop
Lufthansa Logo
06:15 - 12:50TRS-LHR
7h 35m1 stop
£167Lufthansa
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Wed, 26 Nov - Wed, 3 Dec
Lufthansa Logo
08:30 - 14:00LHR-TRS
4h 30m1 stop
Lufthansa Logo
14:40 - 20:50TRS-LHR
7h 10m1 stop
£168Lufthansa
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Fri, 21 Nov - Mon, 24 Nov
Lufthansa Logo
10:30 - 22:30LHR-TRS
11h 00m1 stop
Lufthansa Logo
14:40 - 18:45TRS-LHR
5h 05m1 stop
£168Lufthansa
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Thu, 4 Dec - Sat, 13 Dec
Lufthansa Logo
10:30 - 22:40LHR-TRS
11h 10m1 stop
Lufthansa Logo
06:25 - 15:50TRS-LHR
10h 25m1 stop
£169Lufthansa
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Fri, 21 Nov - Mon, 24 Nov
Lufthansa Logo
11:30 - 22:30LHR-TRS
10h 00m1 stop
Lufthansa Logo
14:40 - 20:50TRS-LHR
7h 10m1 stop
£170Lufthansa
Find Deal
Sun, 7 Dec - Sat, 13 Dec
Lufthansa Logo
08:30 - 14:05LHR-TRS
4h 35m1 stop
Lufthansa Logo
06:25 - 12:50TRS-LHR
7h 25m1 stop
£171Lufthansa
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Fri, 5 Dec - Sun, 7 Dec
Lufthansa Logo
16:30 - 22:30LHR-TRS
5h 00m1 stop
Lufthansa Logo
15:00 - 18:45TRS-LHR
4h 45m1 stop
£172Lufthansa
Find Deal
Sat, 14 Mar - Mon, 16 Mar
Lufthansa Logo
06:30 - 14:05LHR-TRS
6h 35m1 stop
Lufthansa Logo
14:40 - 22:20TRS-LHR
8h 40m1 stop
£172Lufthansa
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Fri, 21 Nov - Sun, 23 Nov
Multiple Airlines Logo
15:30 - 22:30LHR-TRS
6h 00m1 stop
Multiple Airlines Logo
15:00 - 18:45TRS-LHR
4h 45m1 stop
£205Multiple Airlines
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Thu, 27 Nov - Thu, 4 Dec
KLM Logo
10:00 - 22:55LHR-TRS
11h 55m2 stops
KLM Logo
15:15 - 07:40TRS-LHR
17h 25m2 stops
£252KLM
Find Deal

Everything you should know

Top airlines
Lufthansa
Cheapest • from £167 (return)
Lufthansa
Best reviews • 6.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest return fare
£167
Lufthansa
Thu 27/11Thu 4/12
LHR - TRS • 1 stop
Cheapest one-way flight
£79
Multiple Airlines
Mon 12/1
LHR - TRS • 1 stop
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Trieste!
Booking Insights

KAYAK's insights & trends for Heathrow to Trieste flights

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

Which airlines provide the cheapest flights from London Heathrow Airport to Trieste?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest return tickets from London Heathrow Airport to Trieste were found on Lufthansa (£167) and KLM (£252).

Which airlines fly direct between London Heathrow Airport and Trieste?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from London Heathrow Airport to Trieste.

There is just one airline that flies from London Heathrow Airport to Trieste direct and that is Lufthansa. The best return deal found from Lufthansa for the route is £153.

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

Low seasonSeptember
Cheapest flight£79
Best time to beat the crowds (39% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from London Heathrow Airport to Trieste

When to book flights from Heathrow to Trieste

Are your dates flexible? Find out the best times to travel from Heathrow to Trieste based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Trieste flights

  • What is the cheapest flight from London Heathrow Airport to Trieste?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Trieste was £79 for a one-way ticket and £167 for a return.

  • Which airports will I be using when flying from London Heathrow Airport to Trieste?

    London Heathrow Airport airport is called London Heathrow and the only airport in Trieste is Trieste Ronchi dei Legionari.

  • Which aircraft models fly most regularly from London Heathrow Airport to Trieste?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London Heathrow Airport to Trieste?

    Star Alliance is the only airline alliance operating flights between London Heathrow Airport and Trieste.

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

    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 Trieste.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Trieste from London Heathrow Airport 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 Trieste?

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

    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 to Trieste from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Heathrow to Trieste

 
See real verified KAYAK customer reviews for airlines flying from London to Trieste. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Trieste? 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 7541 reviews
6.8Comfort
7.0Boarding
6.3Food
6.4Entertainment
7.6Crew
Airline reviews

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.

6.0 GoodAnonymous, Oct 2025LHR - YYZ
Read more Lufthansa reviews

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.

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!

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

Boarding and flight update was fantastic as I experienced about a 10-15 delayed for both flights. The food served onboard was great; the service of the flight attendants was excellent.

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

Complete mess. Our reservation was mistakenly cancelled. After almost missing the connection and walking all over the Munich airport, the Service desk got involved and we were run to our flight. Not all 4 of us in Business and not seated together as originally booked. This was the worst treatment I have ever had. And I travel a lot. 1K million miler.

When we went to the lounge they told us to go into the main lounge and not the full business class section, later they told me that Lufthansa wont pay the full fee to alloq the business class passengers entry to the nicer sectikn where all the other airlines nusiness class passengers go into. Very poor arrangement.

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.

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

Information on your arrival and departure airports

London Heathrow Airport (LHR)
Trieste (TRS)

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