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Cheap flights from Trieste to London from £53

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 7/6. 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
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
ITA Airways Logo
19:15 - 09:40
TRS
-
LHR
15h 25m
1 stop
ITA Airways Logo
10:30 - 10:25
LHR
-
TRS
22h 55m
1 stop
£150ITA Airways
Tue, 26 May - Sun, 31 May
ITA Airways Logo
15:15 - 15:40
TRS
-
LHR
25h 25m
1 stop
ITA Airways Logo
16:30 - 22:55
LHR
-
TRS
5h 25m
1 stop
£164ITA Airways
Thu, 7 May - Thu, 14 May
ITA Airways Logo
15:15 - 09:40
TRS
-
LHR
19h 25m
1 stop
ITA Airways Logo
10:30 - 18:30
LHR
-
TRS
7h 00m
1 stop
£164ITA Airways
Tue, 14 Apr - Tue, 21 Apr
Lufthansa Logo
06:15 - 10:45
TRS
-
LHR
5h 30m
1 stop
Lufthansa Logo
06:30 - 14:05
LHR
-
TRS
6h 35m
1 stop
£165Lufthansa
Thu, 19 Mar - Sun, 22 Mar
Lufthansa Logo
06:10 - 16:40
TRS
-
LHR
11h 30m
1 stop
Lufthansa Logo
09:30 - 22:15
LHR
-
TRS
11h 45m
1 stop
£166Lufthansa
Wed, 8 Apr - Wed, 15 Apr
Lufthansa Logo
14:45 - 20:40
TRS
-
LHR
6h 55m
1 stop
Lufthansa Logo
13:30 - 22:25
LHR
-
TRS
7h 55m
1 stop
£167Lufthansa
Tue, 7 Apr - Tue, 14 Apr
Lufthansa Logo
14:45 - 22:10
TRS
-
LHR
8h 25m
1 stop
Lufthansa Logo
07:30 - 22:25
LHR
-
TRS
13h 55m
1 stop
£168Lufthansa
Tue, 7 Apr - Tue, 14 Apr
Lufthansa Logo
14:45 - 18:40
TRS
-
LHR
4h 55m
1 stop
Lufthansa Logo
08:30 - 22:15
LHR
-
TRS
12h 45m
1 stop
£169Lufthansa
Sat, 25 Apr - Sun, 26 Apr
Lufthansa Logo
14:40 - 18:40
TRS
-
LHR
5h 00m
1 stop
Lufthansa Logo
09:30 - 22:15
LHR
-
TRS
11h 45m
1 stop
£172Lufthansa
Thu, 16 Apr - Mon, 20 Apr
Lufthansa Logo
14:40 - 20:40
TRS
-
LHR
7h 00m
1 stop
Lufthansa Logo
08:30 - 22:15
LHR
-
TRS
12h 45m
1 stop
£173Lufthansa
Wed, 6 May - Sun, 10 May

Lufthansa flights from Trieste to London Heathrow Airport

Our best Lufthansa deals on Trieste to London Heathrow Airport flight tickets
Lufthansa
19 Mar
TRS06:15Trieste Ronchi dei Legionari
5h 30m
1 stop
LHR10:45London Heathrow
22 Mar
LHR06:30London Heathrow
6h 35m
1 stop
TRS14:05Trieste Ronchi dei Legionari
£165
Lufthansa
8 Apr
TRS06:10Trieste Ronchi dei Legionari
11h 30m
1 stop
LHR16:40London Heathrow
15 Apr
LHR09:30London Heathrow
11h 45m
1 stop
TRS22:15Trieste Ronchi dei Legionari
£166
Lufthansa
7 Apr
TRS14:45Trieste Ronchi dei Legionari
6h 55m
1 stop
LHR20:40London Heathrow
14 Apr
LHR13:30London Heathrow
7h 55m
1 stop
TRS22:25Trieste Ronchi dei Legionari
£167

KLM flights from Trieste to London Heathrow Airport

Our best KLM deals on Trieste to London Heathrow Airport flight tickets
KLM
7 Mar
TRS06:35Trieste Ronchi dei Legionari
15h 15m
2 stops
LHR20:50London Heathrow
8 Mar
LHR20:25London Heathrow
25h 30m
2 stops
TRS22:55Trieste Ronchi dei Legionari
£356
KLM
5 Mar
TRS06:35Trieste Ronchi dei Legionari
10h 30m
2 stops
LHR16:05London Heathrow
5 Mar
LHR20:25London Heathrow
17h 00m
2 stops
TRS14:25Trieste Ronchi dei Legionari
£425
KLM
28 Feb
TRS15:15Trieste Ronchi dei Legionari
6h 35m
2 stops
LHR20:50London Heathrow
1 Mar
LHR06:30London Heathrow
11h 00m
2 stops
TRS18:30Trieste Ronchi dei Legionari
£514

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 24 February 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

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Tue 26/5

19:15-09:40

1 stop15h 25m

London Heathrow

Sun 31/5

10:30-10:25

1 stop22h 55m

£150

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 7/5

15:15-15:40

1 stop25h 25m

London Heathrow

Thu 14/5

16:30-22:55

1 stop5h 25m

£164

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Tue 14/4

15:15-09:40

1 stop19h 25m

London Heathrow

Tue 21/4

10:30-18:30

1 stop7h 00m

£164

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 19/3

06:15-10:45

1 stop5h 30m

London Heathrow

Sun 22/3

06:30-14:05

1 stop6h 35m

£165

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Wed 8/4

06:10-16:40

1 stop11h 30m

London Heathrow

Wed 15/4

09:30-22:15

1 stop11h 45m

£166

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Tue 7/4

14:45-20:40

1 stop6h 55m

London Heathrow

Tue 14/4

13:30-22:25

1 stop7h 55m

£167

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Tue 7/4

14:45-22:10

1 stop8h 25m

London Heathrow

Tue 14/4

07:30-22:25

1 stop13h 55m

£168

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Sat 25/4

14:45-18:40

1 stop4h 55m

London Heathrow

Sun 26/4

08:30-22:15

1 stop12h 45m

£169

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 16/4

14:40-18:40

1 stop5h 00m

London Heathrow

Mon 20/4

09:30-22:15

1 stop11h 45m

£172

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Wed 6/5

14:40-20:40

1 stop7h 00m

London Heathrow

Sun 10/5

08:30-22:15

1 stop12h 45m

£173

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, KLM, and Lufthansa are the most popular carriers 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 20m

Direct flights

None
The fastest flight from Trieste to London Heathrow Airport takes 4h 20m
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

  • 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 20m.

  • 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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Guildford
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Wembley
Hayes
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Folkestone

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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