How do I get Price Alerts for flights from Trieste to London Heathrow Airport?

Confirm your travel details to search for the latest offers for flights from Trieste to London Heathrow Airport . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Trieste to London Heathrow Airport with momondo?

With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

When did momondo last update prices for flights from Trieste Ronchi dei Legionari Airport to London Heathrow Airport?

Prices for flights from Trieste Ronchi dei Legionari Airport to London Heathrow Airport were last updated today.

How old do you have to be to fly from Trieste Ronchi dei Legionari Airport to London Heathrow Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Trieste Ronchi dei Legionari Airport to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£78 Cheap Flights from Trieste to London Heathrow Airport in 2026

Find the cheapest flights from Trieste to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:30 - 20:05TRS Trieste Ronchi dei Legionari-LHR London Heathrow

10h 35m1 stop Barcelona-El Prat

20:50 - 13:05LHR London Heathrow-TRS Trieste Ronchi dei Legionari

15h 15m1 stop Barcelona-El Prat

£162Multiple Airlines

Thu, 17 Sep - Mon, 21 Sep

06:15 - 17:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

12h 25m1 stop Frankfurt am Main

13:30 - 21:55LHR London Heathrow-TRS Trieste Ronchi dei Legionari

7h 25m1 stop Frankfurt am Main

£165Lufthansa

Thu, 17 Sep - Sat, 26 Sep

06:35 - 15:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

10h 05m1 stop Rome Fiumicino

16:30 - 14:30LHR London Heathrow-TRS Trieste Ronchi dei Legionari

21h 00m1 stop Rome Fiumicino

£165ITA Airways

Mon, 23 Nov - Thu, 26 Nov

06:20 - 18:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

13h 20m1 stop Frankfurt am Main

13:30 - 21:55LHR London Heathrow-TRS Trieste Ronchi dei Legionari

7h 25m1 stop Frankfurt am Main

£165Lufthansa

Tue, 15 Sep - Sat, 26 Sep

06:20 - 10:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

5h 20m1 stop Frankfurt am Main

09:30 - 22:15LHR London Heathrow-TRS Trieste Ronchi dei Legionari

11h 45m1 stop Frankfurt am Main

£166Lufthansa

Tue, 29 Sep - Wed, 30 Sep

14:40 - 18:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

5h 00m1 stop Frankfurt am Main

11:30 - 22:25LHR London Heathrow-TRS Trieste Ronchi dei Legionari

9h 55m1 stop Frankfurt am Main

£167Lufthansa

Thu, 17 Sep - Thu, 24 Sep

14:40 - 20:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

7h 00m1 stop Frankfurt am Main

07:30 - 22:15LHR London Heathrow-TRS Trieste Ronchi dei Legionari

13h 45m1 stop Frankfurt am Main

£168Lufthansa

Wed, 16 Sep - Sun, 20 Sep

11:15 - 15:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

5h 25m1 stop Rome Fiumicino

10:30 - 22:55LHR London Heathrow-TRS Trieste Ronchi dei Legionari

11h 25m1 stop Rome Fiumicino

£168ITA Airways

Fri, 6 Nov - Tue, 10 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

11:15 - 15:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

5h 25m1 stop Rome Fiumicino

16:30 - 22:55LHR London Heathrow-TRS Trieste Ronchi dei Legionari

5h 25m1 stop Rome Fiumicino

£190ITA Airways

Tue, 18 Aug - Tue, 25 Aug

14:45 - 22:10TRS Trieste Ronchi dei Legionari-LHR London Heathrow

8h 25m1 stop Frankfurt am Main

16:30 - 22:55LHR London Heathrow-TRS Trieste Ronchi dei Legionari

5h 25m1 stop Rome Fiumicino

£219Multiple Airlines

Sat, 15 Aug - Mon, 17 Aug

06:20 - 12:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

7h 20m1 stop Frankfurt am Main

10:30 - 22:55LHR London Heathrow-TRS Trieste Ronchi dei Legionari

11h 25m1 stop Rome Fiumicino

£219Multiple Airlines

Tue, 18 Aug - Thu, 20 Aug

06:10 - 16:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

11h 30m1 stop Frankfurt am Main

15:30 - 22:15LHR London Heathrow-TRS Trieste Ronchi dei Legionari

5h 45m1 stop Frankfurt am Main

£228Lufthansa

Mon, 17 Aug - Wed, 19 Aug

06:20 - 17:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

12h 20m1 stop Frankfurt am Main

11:30 - 22:15LHR London Heathrow-TRS Trieste Ronchi dei Legionari

9h 45m1 stop Frankfurt am Main

£228Lufthansa

Tue, 18 Aug - Wed, 19 Aug

14:45 - 18:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

4h 55m1 stop Frankfurt am Main

15:30 - 22:15LHR London Heathrow-TRS Trieste Ronchi dei Legionari

5h 45m1 stop Frankfurt am Main

£245Lufthansa

Sat, 15 Aug - Wed, 19 Aug

14:45 - 18:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

4h 55m1 stop Frankfurt am Main

10:50 - 22:15LHR London Heathrow-TRS Trieste Ronchi dei Legionari

10h 25m2 stops Munich Franz Josef Strauss Frankfurt am Main

£252Lufthansa

Tue, 18 Aug - Wed, 19 Aug

06:10 - 16:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

11h 30m1 stop Frankfurt am Main

10:50 - 22:15LHR London Heathrow-TRS Trieste Ronchi dei Legionari

10h 25m2 stops Munich Franz Josef Strauss Frankfurt am Main

£252Lufthansa

Mon, 17 Aug - Wed, 19 Aug

19:15 - 09:40TRS Trieste Ronchi dei Legionari-LHR London Heathrow

15h 25m1 stop Rome Fiumicino

07:30 - 14:00LHR London Heathrow-TRS Trieste Ronchi dei Legionari

5h 30m1 stop Frankfurt am Main

£257Multiple Airlines

Fri, 14 Aug - Sun, 16 Aug

14:45 - 20:45TRS Trieste Ronchi dei Legionari-LHR London Heathrow

7h 00m2 stops Frankfurt am Main Munich Franz Josef Strauss

10:30 - 22:55LHR London Heathrow-TRS Trieste Ronchi dei Legionari

11h 25m1 stop Rome Fiumicino

£259Multiple Airlines

Tue, 18 Aug - Thu, 20 Aug

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Lufthansa flights from Trieste to London Heathrow Airport

Our best Lufthansa deals on Trieste to London Heathrow Airport flight tickets

Lufthansa

17 Sept

TRS06:15Trieste Ronchi dei Legionari

12h 25m

1 stop

LHR17:40London Heathrow

26 Sept

LHR13:30London Heathrow

7h 25m

1 stop

TRS21:55Trieste Ronchi dei Legionari

£165

Lufthansa

29 Sept

TRS06:20Trieste Ronchi dei Legionari

5h 20m

1 stop

LHR10:40London Heathrow

30 Sept

LHR09:30London Heathrow

11h 45m

1 stop

TRS22:15Trieste Ronchi dei Legionari

£166

Lufthansa

17 Sept

TRS14:40Trieste Ronchi dei Legionari

5h 00m

1 stop

LHR18:40London Heathrow

24 Sept

LHR11:30London Heathrow

9h 55m

1 stop

TRS22:25Trieste Ronchi dei Legionari

£167

ITA Airways flights from Trieste to London Heathrow Airport

Our best ITA Airways deals on Trieste to London Heathrow Airport flight tickets

ITA Airways

6 Nov

TRS11:15Trieste Ronchi dei Legionari

5h 25m

1 stop

LHR15:40London Heathrow

10 Nov

LHR10:30London Heathrow

7h 00m

1 stop

TRS18:30Trieste Ronchi dei Legionari

£168

ITA Airways

1 Oct

TRS11:15Trieste Ronchi dei Legionari

23h 25m

1 stop

LHR09:40London Heathrow

4 Oct

LHR16:30London Heathrow

16h 55m

1 stop

TRS10:25Trieste Ronchi dei Legionari

£188

ITA Airways

14 Sept

TRS19:15Trieste Ronchi dei Legionari

15h 25m

1 stop

LHR09:40London Heathrow

21 Sept

LHR16:30London Heathrow

5h 25m

1 stop

TRS22:55Trieste Ronchi dei Legionari

£204

momondo Fare Finder

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

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Thu 17/9

10:30-20:05

1 stop10h 35m

London Heathrow

Mon 21/9

20:50-13:05

1 stop15h 15m

£162

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Thu 17/9

06:15-17:40

1 stop12h 25m

London Heathrow

Sat 26/9

13:30-21:55

1 stop7h 25m

£165

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Mon 23/11

06:35-15:40

1 stop10h 05m

London Heathrow

Thu 26/11

16:30-14:30

1 stop21h 00m

£165

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Tue 15/9

06:20-18:40

1 stop13h 20m

London Heathrow

Sat 26/9

13:30-21:55

1 stop7h 25m

£165

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Tue 29/9

06:20-10:40

1 stop5h 20m

London Heathrow

Wed 30/9

09:30-22:15

1 stop11h 45m

£166

Fastest return journey

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Thu 17/9

14:40-18:40

1 stop5h 00m

London Heathrow

Thu 24/9

11:30-22:25

1 stop9h 55m

£167

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Wed 16/9

14:40-20:40

1 stop7h 00m

London Heathrow

Sun 20/9

07:30-22:15

1 stop13h 45m

£168

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

10:30-22:55

1 stop11h 25m

£168

Cheapest one-way

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Sat 26/9

08:30-20:05

1 stop12h 35m

£78

TriesteLondon

TRS Trieste Ronchi dei Legionari - LHR London Heathrow

TRSLHR

Trieste Ronchi dei Legionari

Sun 15/11

11:15-09:40

1 stop23h 25m

£78

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

When to book flights from Trieste to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Trieste to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Trieste to London Heathrow Airport (TRS to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Trieste to London Heathrow Airport

Fastest flight time	5h 25m
Direct flights	None

The fastest flight from Trieste to London Heathrow Airport takes 5h 25m

There are no direct flights from Trieste to London Heathrow Airport. There are no popular flight routes from Trieste to London Heathrow Airport.

Search flight deals

Frequently asked questions about flying from Trieste to London Heathrow Airport

How far is Trieste Ronchi dei Legionari to London Heathrow by plane?
The distance between Trieste Ronchi dei Legionari and London Heathrow is about 762.4 mi. A reasonable flight in good conditions will take 5h 25m.
When did momondo last update prices for flights from Trieste Ronchi dei Legionari Airport to London Heathrow Airport?
Prices for flights from Trieste Ronchi dei Legionari Airport to London Heathrow Airport were last updated today.
How old do you have to be to fly from Trieste Ronchi dei Legionari Airport to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Trieste Ronchi dei Legionari Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Trieste to London Heathrow Airport

How do I get Price Alerts for flights from Trieste to London Heathrow Airport?
Confirm your travel details to search for the latest offers for flights from Trieste to London Heathrow Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Trieste to London Heathrow Airport with momondo?
With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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Why use momondo?

Why should I use momondo to find a flight deal from Trieste to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Trieste.

Can I find flights from Trieste to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from Trieste which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Trieste to London?

momondo provides multiple filters to help you find the best flight to London from Trieste. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Trieste to London right now. Can momondo alert me if prices change?

Price alerts on flights to London from Trieste are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.