Find flights
When to book
FAQs

Cheap flights from Trieste to London Heathrow Airport from £62

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
TRS — LHR
30 Jan — 6 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Trieste to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Trieste to Heathrow
Explore the most affordable flight options available from Trieste to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 December 2025.

Wed 31/1214:40TRS - LHR
1 stop7h 10mLufthansa
Wed 7/110:30LHR - TRS
1 stop11h 10mLufthansa
Deal found 30/12£280
Tue 30/1214:40TRS - LHR
1 stop7h 10mLufthansa
Mon 5/111:30LHR - TRS
1 stop9h 55mLufthansa
Deal found 30/12£285
Wed 31/1214:40TRS - LHR
1 stop7h 10mLufthansa
Sun 4/106:30LHR - TRS
1 stop6h 35mLufthansa
Deal found 30/12£300
Wed 31/1206:35TRS - LHR
2 stops11h 05mMultiple Airlines
Sun 4/107:50LHR - TRS
1 stop11h 50mMultiple Airlines
Deal found 30/12£329
Wed 31/1214:40TRS - LHR
1 stop7h 10mLufthansa
Thu 1/111:30LHR - TRS
1 stop10h 10mLufthansa
Deal found 30/12£353
Wed 31/1206:35TRS - LHR
2 stops11h 05mMultiple Airlines
Thu 1/107:00LHR - TRS
2 stops14h 55mMultiple Airlines
Deal found 30/12£362

Find flight deals from Trieste to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Trieste (TRS) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 31 December 2025.

Round-trip from

£139

One-way from

£62

Popular in

June

Cheapest in

May

Average price

£107
Lufthansa
  • Lufthansa
  • 13/2-20/2
  • 2 total stops
  • 19h 20m total
  • Trieste to London
Search Deals
ITA Airways
  • ITA Airways
  • 8/5
  • 1 total stop
  • 5h 25m total
  • Trieste to London
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£1 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Trieste to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 December 2025.
Use the filters below to find and compare flights from Trieste to London Heathrow Airport that are best for you.

Fly from

Trieste

Fly to

Heathrow

Route

Depart

Return

Price

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 22/1

06:15-14:45

1 stop9h 30m

London Heathrow

Thu 29/1

06:30-14:10

1 stop6h 40m

£146

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 12/2

06:15-12:50

1 stop7h 35m

London Heathrow

Thu 26/2

13:30-22:40

1 stop8h 10m

£147

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 12/2

06:15-12:50

1 stop7h 35m

London Heathrow

Thu 19/2

13:30-22:40

1 stop8h 10m

£147

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Sun 25/1

15:00-18:45

1 stop4h 45m

London Heathrow

Thu 29/1

08:30-14:10

1 stop4h 40m

£147

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Tue 14/4

06:10-12:40

1 stop7h 30m

London Heathrow

Thu 23/4

13:30-22:25

1 stop7h 55m

£153

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Wed 15/4

14:40-22:10

1 stop8h 30m

London Heathrow

Sat 25/4

08:30-21:55

1 stop12h 25m

£153

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 16/4

14:40-18:40

1 stop5h 00m

London Heathrow

Thu 23/4

13:30-22:25

1 stop7h 55m

£153

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 16/4

14:40-18:40

1 stop5h 00m

London Heathrow

Fri 24/4

08:30-13:55

1 stop4h 25m

£153

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 16/4

14:40-18:40

1 stop5h 00m

London Heathrow

Sat 25/4

09:30-21:55

1 stop11h 25m

£153

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Wed 15/4

14:40-20:40

1 stop7h 00m

London Heathrow

Fri 24/4

07:30-13:55

1 stop5h 25m

£153

Flights are sorted by cheapest return flights first.

Deals found on 31/12

Showing 1-10 of 20 results
1
2

Best time to book a flight from Trieste to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Trieste with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Trieste to London Heathrow Airport

What is the cheapest month to book a flight from Trieste to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Trieste to London Heathrow Airport (average of £53). Flying from Trieste to London Heathrow Airport in August is currently the most expensive (average of £145). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Trieste to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Trieste to London Heathrow?

    Trieste Ronchi dei Legionari (TRS) is the airport you will fly out of if you book a flight from Trieste to London Heathrow. You should not have trouble finding flights to London Heathrow from Ronchi dei Legionari; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Trieste airport to London Heathrow. It is only a 18.2 mi journey to Ronchi dei Legionari (TRS) from Trieste’s city center.

  • How long is the flight from Trieste to London Heathrow Airport?

    For as low as £146, Lufthansa can have you in London Heathrow Airport from Trieste in 9h 30m. Trieste and London Heathrow Airport are separated by a distance of 744 mi.

  • Can I find deals for flights from Trieste to Heathrow that include hotel bookings?

    Yes. In addition to deals on Trieste to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Trieste to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Trieste to Heathrow.

  • Can I find deals for business class flights from Trieste to Heathrow?

    Yes. Cheapflights offers flight deals from Trieste to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from Trieste to London Heathrow Airport (average of £53). Flying from Trieste to London Heathrow Airport in August is currently the most expensive (average of £145). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Luton
Slough
Northampton
Hounslow
Gatwick
Ilford
Wembley
Hayes
Brentford
Colchester
Watford
Crawley
Swindon
Bedford
Chelmsford
Romford
Eastbourne
Ipswich

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Trieste to Heathrow?

Deals for Trieste to Heathrow flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Trieste to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Trieste.

Can Cheapflights find flights from Trieste to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from Trieste shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Trieste to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Trieste to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.