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Cheap flights from Trieste to London Heathrow Airport from £63

TRS — LHR
18 Sep — 25 Sep1
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

Sat 3/1006:55 -
1 stop12h 35m
Fri 9/1020:50 -
1 stop10h 15m
Deal found 19/8£125
Sat 14/1115:10 -
1 stop5h 55m
Sat 12/1209:55 -
1 stop8h 45m
Deal found 16/8£151
Sat 26/906:15 -
1 stop12h 25m
Sat 3/1016:30 -
1 stop5h 25m
Deal found 16/8£162
Thu 10/910:30 -
1 stop10h 35m
Mon 14/920:50 -
1 stop15h 15m
Deal found 18/8£163
Sat 5/906:15 -
1 stop13h 25m
Sat 12/909:30 -
1 stop11h 25m
Deal found 14/8£165
Thu 5/1106:35 -
1 stop10h 05m
Sun 8/1110:30 -
1 stop7h 00m
Deal found 19/8£165
Fri 6/1111:15 -
1 stop5h 25m
Tue 10/1110:30 -
1 stop7h 00m
Deal found 18/8£168
Fri 11/914:40 -
1 stop8h 30m
Thu 17/909:30 -
1 stop11h 55m
Deal found 17/8£168
Tue 29/906:20 -
1 stop5h 20m
Wed 30/909:30 -
1 stop11h 45m
Deal found 19/8£169
Fri 2/1014:40 -
1 stop8h 30m
Sun 4/1009:30 -
1 stop11h 45m
Deal found 17/8£170
Fri 11/914:40 -
1 stop8h 30m
Mon 14/908:30 -
1 stop12h 45m
Deal found 18/8£171

Find flight deals from Trieste to Heathrow

Round-trip from

£131

One-way from

£90

Popular in

January

Cheapest in

November

Average price

£123
3/10-9/10
  • 3/10-9/10
  • 2 total stops
  • 22h 50m total
  • Trieste to London
Search Deals
16/9
  • 16/9
  • 1 total stop
  • 9h 15m total
  • Trieste to London
Search Deals
Highest demand for flights based on searches. 15% 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 August 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Trieste to London Heathrow Airport that are best for you.

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TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Fri 6/11

11:15-15:40

1 stop5h 25m

London Heathrow

Tue 10/11

10:30-18:30

1 stop7h 00m

£168

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Thu 8/10

06:15-16:40

1 stop11h 25m

London Heathrow

Mon 12/10

08:30-22:15

1 stop12h 45m

£170

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Fri 2/10

14:40-22:10

1 stop8h 30m

London Heathrow

Mon 5/10

08:30-22:15

1 stop12h 45m

£175

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

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

£191

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Fri 23/10

06:35-15:40

1 stop10h 05m

London Heathrow

Thu 29/10

16:30-10:25

1 stop16h 55m

£197

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Wed 16/9

14:40-20:45

2 stops7h 05m

London Heathrow

Wed 23/9

08:30-22:15

1 stop12h 45m

£197

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Sat 10/10

19:15-09:40

1 stop15h 25m

London Heathrow

Wed 14/10

10:30-22:55

1 stop11h 25m

£197
Cheapest one-way

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Mon 21/9

19:15-09:40

1 stop15h 25m

£91

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Thu 10/9

10:30-20:05

1 stop10h 35m

£98

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Mon 28/9

19:15-09:40

1 stop15h 25m

£100

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 16 resultsSorted by cheapest first
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

Related info for your journey

  • 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 £165, Lufthansa can have you in London Heathrow Airport from Trieste in 13h 25m. 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
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Milton Keynes
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Wembley
Gatwick
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Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
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Barnet
Enfield
Swindon
Kingston upon Thames
Southall
Salisbury

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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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