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Cheap flights from Trieste to London from £64

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Trieste to London departing on 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from Trieste to London

Cheap return flights

Enter your travel dates to find the best prices.
ITA Airways Logo
06:35 - 15:40
TRS
-
LHR
10h 05m
1 stop
ITA Airways Logo
16:30 - 22:55
LHR
-
TRS
5h 25m
1 stop
£159ITA Airways
Thu, 17 Sep - Sat, 26 Sep
ITA Airways Logo
11:15 - 09:40
TRS
-
LHR
23h 25m
1 stop
ITA Airways Logo
16:30 - 10:25
LHR
-
TRS
16h 55m
1 stop
£160ITA Airways
Thu, 5 Nov - Mon, 9 Nov
ITA Airways Logo
06:35 - 15:40
TRS
-
LHR
10h 05m
1 stop
ITA Airways Logo
10:30 - 18:30
LHR
-
TRS
7h 00m
1 stop
£164ITA Airways
Sat, 21 Nov - Wed, 25 Nov
ITA Airways Logo
15:15 - 09:40
TRS
-
LHR
19h 25m
1 stop
ITA Airways Logo
16:30 - 10:25
LHR
-
TRS
16h 55m
1 stop
£165ITA Airways
Sat, 21 Nov - Wed, 25 Nov
ITA Airways Logo
06:35 - 15:40
TRS
-
LHR
10h 05m
1 stop
ITA Airways Logo
16:30 - 22:55
LHR
-
TRS
5h 25m
1 stop
£169ITA Airways
Fri, 25 Sep - Sun, 27 Sep
ITA Airways Logo
06:35 - 15:40
TRS
-
LHR
10h 05m
1 stop
ITA Airways Logo
16:30 - 22:55
LHR
-
TRS
5h 25m
1 stop
£169ITA Airways
Fri, 25 Sep - Mon, 28 Sep
Multiple Airlines Logo
14:45 - 18:40
TRS
-
LHR
4h 55m
1 stop
Multiple Airlines Logo
16:30 - 22:55
LHR
-
TRS
5h 25m
1 stop
£175Multiple Airlines
Sat, 19 Sep - Sat, 26 Sep
ITA Airways Logo
06:35 - 15:40
TRS
-
LHR
10h 05m
1 stop
ITA Airways Logo
16:30 - 10:25
LHR
-
TRS
16h 55m
1 stop
£175ITA Airways
Thu, 17 Sep - Thu, 24 Sep
Multiple Airlines Logo
06:15 - 14:40
TRS
-
LHR
9h 25m
1 stop
Multiple Airlines Logo
16:30 - 22:55
LHR
-
TRS
5h 25m
1 stop
£179Multiple Airlines
Sat, 24 Oct - Wed, 28 Oct
Multiple Airlines Logo
11:15 - 15:40
TRS
-
LHR
5h 25m
1 stop
Multiple Airlines Logo
11:30 - 22:25
LHR
-
TRS
9h 55m
1 stop
£183Multiple Airlines
Fri, 16 Oct - Tue, 20 Oct

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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
23 Jul
TRS14:40Trieste Ronchi dei Legionari
8h 30m
1 stop
LHR22:10London Heathrow
30 Jul
LHR08:30London Heathrow
4h 30m
1 stop
TRS14:00Trieste Ronchi dei Legionari
£192
Lufthansa
30 Jul
TRS14:40Trieste Ronchi dei Legionari
8h 30m
1 stop
LHR22:10London Heathrow
3 Aug
LHR09:30London Heathrow
11h 45m
1 stop
TRS22:15Trieste Ronchi dei Legionari
£193
Lufthansa
4 Aug
TRS06:20Trieste Ronchi dei Legionari
5h 20m
1 stop
LHR10:40London Heathrow
18 Aug
LHR13:30London Heathrow
7h 55m
1 stop
TRS22:25Trieste Ronchi dei Legionari
£194

ITA Airways flights from Trieste to London Heathrow Airport

Our best ITA Airways deals on Trieste to London Heathrow Airport flight tickets
ITA Airways
17 Sept
TRS06:35Trieste Ronchi dei Legionari
10h 05m
1 stop
LHR15:40London Heathrow
26 Sept
LHR16:30London Heathrow
5h 25m
1 stop
TRS22:55Trieste Ronchi dei Legionari
£159
ITA Airways
5 Nov
TRS11:15Trieste Ronchi dei Legionari
23h 25m
1 stop
LHR09:40London Heathrow
9 Nov
LHR16:30London Heathrow
16h 55m
1 stop
TRS10:25Trieste Ronchi dei Legionari
£160
ITA Airways
21 Nov
TRS06:35Trieste Ronchi dei Legionari
10h 05m
1 stop
LHR15:40London Heathrow
25 Nov
LHR10:30London Heathrow
7h 00m
1 stop
TRS18:30Trieste Ronchi dei Legionari
£164

momondo Fare Finder

 
Customise your flight search to find flights from Trieste to London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 29 June 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

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 17/9

06:35-15:40

1 stop10h 05m

London Heathrow

Sat 26/9

16:30-22:55

1 stop5h 25m

£159

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 5/11

11:15-09:40

1 stop23h 25m

London Heathrow

Mon 9/11

16:30-10:25

1 stop16h 55m

£160

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Sat 21/11

06:35-15:40

1 stop10h 05m

London Heathrow

Wed 25/11

10:30-18:30

1 stop7h 00m

£164

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Sat 21/11

15:15-09:40

1 stop19h 25m

London Heathrow

Wed 25/11

16:30-10:25

1 stop16h 55m

£165

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Fri 25/9

06:35-15:40

1 stop10h 05m

London Heathrow

Sun 27/9

16:30-22:55

1 stop5h 25m

£169

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Fri 25/9

06:35-15:40

1 stop10h 05m

London Heathrow

Mon 28/9

16:30-22:55

1 stop5h 25m

£169
Fastest return journey

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Sat 19/9

14:45-18:40

1 stop4h 55m

London Heathrow

Sat 26/9

16:30-22:55

1 stop5h 25m

£175

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 17/9

06:35-15:40

1 stop10h 05m

London Heathrow

Thu 24/9

16:30-10:25

1 stop16h 55m

£175

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Sat 24/10

06:15-14:40

1 stop9h 25m

London Heathrow

Wed 28/10

16:30-22:55

1 stop5h 25m

£179

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

£183

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Trieste to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Trieste Ronchi dei Legionari to London Heathrow?

ITA Airways is the most popular carrier operating from Trieste Ronchi dei Legionari to London Heathrow

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

4h 55m

Direct flights

None
The fastest flight from Trieste to London Heathrow Airport takes 4h 55m
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 4h 55m.

  • 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.

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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.

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