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Cheap flights from Trieste to London Heathrow Airport from £67

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 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
TRS — LHR
2 Aug — 9 Aug1
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 3 July 2026.

Thu 17/906:35
TRS
-
LHR
1 stop10h 05m
ITA Airways
Sat 26/916:30
LHR
-
TRS
1 stop5h 25m
ITA Airways
Deal found 29/6£157
Thu 17/910:30
TRS
-
LHR
1 stop10h 35m
Multiple Airlines
Fri 25/920:50
LHR
-
TRS
1 stop10h 15m
Multiple Airlines
Deal found 2/7£158
Thu 5/1111:15
TRS
-
LHR
1 stop23h 25m
ITA Airways
Mon 9/1116:30
LHR
-
TRS
1 stop16h 55m
ITA Airways
Deal found 29/6£159
Sat 7/1111:15
TRS
-
LHR
1 stop5h 25m
ITA Airways
Mon 9/1116:30
LHR
-
TRS
1 stop5h 25m
ITA Airways
Deal found 1/7£162
Thu 27/806:35
TRS
-
LHR
1 stop10h 05m
ITA Airways
Mon 31/810:30
LHR
-
TRS
1 stop7h 00m
ITA Airways
Deal found 3/7£162
Thu 17/911:15
TRS
-
LHR
1 stop5h 25m
ITA Airways
Fri 25/916:30
LHR
-
TRS
1 stop5h 25m
ITA Airways
Deal found 1/7£168
Thu 23/710:30
TRS
-
LHR
1 stop10h 35m
Multiple Airlines
Fri 24/720:50
LHR
-
TRS
1 stop10h 15m
Multiple Airlines
Deal found 30/6£174
Thu 20/814:40
TRS
-
LHR
1 stop7h 00m
Multiple Airlines
Mon 24/810:30
LHR
-
TRS
1 stop7h 00m
Multiple Airlines
Deal found 3/7£176
Thu 27/814:40
TRS
-
LHR
1 stop5h 00m
Multiple Airlines
Mon 31/816:30
LHR
-
TRS
1 stop5h 25m
Multiple Airlines
Deal found 3/7£178
Fri 16/1011:15
TRS
-
LHR
1 stop5h 25m
Multiple Airlines
Tue 20/1011:30
LHR
-
TRS
1 stop9h 55m
Multiple Airlines
Deal found 1/7£181
Thu 30/710:30
TRS
-
LHR
1 stop10h 35m
Multiple Airlines
Fri 31/720:50
LHR
-
TRS
1 stop10h 15m
Multiple Airlines
Deal found 30/6£182
Thu 10/911:15
TRS
-
LHR
1 stop23h 25m
ITA Airways
Mon 14/916:30
LHR
-
TRS
1 stop16h 55m
ITA Airways
Deal found 2/7£186

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 3 July 2026.

Round-trip from

£149

One-way from

£67

Popular in

January

Cheapest in

November

Average price

£118
ITA Airways
  • ITA Airways
  • 27/8-31/8
  • 2 total stops
  • 16h 50m total
  • Trieste to London
Search Deals
ITA Airways
  • ITA Airways
  • 16/10
  • 1 total stop
  • 5h 25m total
  • Trieste to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£12 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 July 2026
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 3 July 2026.
Use the filters below to find and compare flights from Trieste to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 27/8

14:40-18:40

1 stop5h 00m

London Heathrow

Mon 31/8

16:30-22:55

1 stop5h 25m

£178

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Fri 16/10

11:15-15:40

1 stop5h 25m

London Heathrow

Tue 20/10

11:30-22:25

1 stop9h 55m

£181

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Wed 15/7

06:10-10:40

1 stop5h 30m

London Heathrow

Fri 17/7

06:30-13:55

1 stop6h 25m

£197

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 8/10

15:15-09:40

1 stop19h 25m

London Heathrow

Sat 10/10

10:30-18:30

1 stop7h 00m

£201

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 3/9

06:15-17:40

1 stop12h 25m

London Heathrow

Mon 7/9

08:30-22:15

1 stop12h 45m

£201

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 20/8

06:15-18:40

1 stop13h 25m

London Heathrow

Sun 23/8

07:30-22:15

1 stop13h 45m

£216

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Wed 15/7

06:10-12:40

1 stop7h 30m

London Heathrow

Sun 19/7

07:30-22:15

1 stop13h 45m

£216

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Tue 4/8

14:45-18:40

1 stop4h 55m

London Heathrow

Thu 6/8

13:35-22:25

2 stops7h 50m

£217

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Wed 22/7

06:10-14:40

1 stop9h 30m

London Heathrow

Sun 26/7

06:30-22:15

1 stop14h 45m

£234

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 27/8

06:15-17:40

1 stop12h 25m

London Heathrow

Mon 31/8

10:50-22:15

2 stops10h 25m

£235

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 23 resultsSorted by cheapest first
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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.

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 £197, Lufthansa can have you in London Heathrow Airport from Trieste in 5h 30m. Trieste and London Heathrow Airport are separated by a distance of 744 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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.

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
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Croydon
Slough
Ilford
Hayes
Brentford
Colchester
Northampton
Watford
Kingston upon Thames
Swindon
Eastbourne
Poole
Southall
Aylesbury
Romford

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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.

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