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Cheap flights from Trieste to London from £78

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 8/10. 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
0 bags
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Cheap return flights

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Multiple Airlines Logo
11:10 - 18:00TRS-LHR
7h 50m1 stop
Multiple Airlines Logo
09:55 - 22:45LHR-TRS
11h 50m1 stop
£145Multiple Airlines
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Thu, 20 Nov - Sat, 29 Nov
Multiple Airlines Logo
19:15 - 09:10TRS-LHR
14h 55m2 stops
Multiple Airlines Logo
09:55 - 22:45LHR-TRS
11h 50m1 stop
£163Multiple Airlines
Find Deal
Tue, 4 Nov - Sat, 8 Nov
Lufthansa Logo
15:00 - 18:45TRS-LHR
4h 45m1 stop
Lufthansa Logo
15:30 - 22:30LHR-TRS
6h 00m1 stop
£168Lufthansa
Find Deal
Fri, 14 Nov - Fri, 21 Nov
Lufthansa Logo
15:00 - 22:20TRS-LHR
8h 20m1 stop
Lufthansa Logo
08:30 - 14:00LHR-TRS
4h 30m1 stop
£168Lufthansa
Find Deal
Sat, 27 Dec - Tue, 30 Dec
Lufthansa Logo
06:30 - 15:40TRS-LHR
10h 10m1 stop
Lufthansa Logo
11:30 - 22:40LHR-TRS
10h 10m1 stop
£169Lufthansa
Find Deal
Thu, 23 Oct - Wed, 29 Oct
Lufthansa Logo
15:00 - 18:45TRS-LHR
4h 45m1 stop
Lufthansa Logo
13:30 - 22:40LHR-TRS
8h 10m1 stop
£170Lufthansa
Find Deal
Sun, 8 Feb - Thu, 12 Feb
Lufthansa Logo
06:25 - 10:45TRS-LHR
5h 20m1 stop
Lufthansa Logo
08:30 - 14:05LHR-TRS
4h 35m1 stop
£174Lufthansa
Find Deal
Fri, 7 Nov - Fri, 14 Nov
Lufthansa Logo
15:00 - 18:45TRS-LHR
4h 45m1 stop
Lufthansa Logo
10:30 - 22:25LHR-TRS
10h 55m1 stop
£177Lufthansa
Find Deal
Fri, 5 Dec - Mon, 8 Dec
Multiple Airlines Logo
20:30 - 08:05TRS-LHR
12h 35m1 stop
Multiple Airlines Logo
09:55 - 22:50LHR-TRS
11h 55m1 stop
£183Multiple Airlines
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Fri, 26 Dec - Mon, 29 Dec
KLM Logo
15:15 - 20:50TRS-LHR
6h 35m2 stops
KLM Logo
08:40 - 18:30LHR-TRS
8h 50m2 stops
£252KLM
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Sat, 14 Feb - Sun, 22 Feb

Lufthansa flights from Trieste to London Heathrow Airport

Our best Lufthansa deals on Trieste to London Heathrow Airport flight tickets
Lufthansa
14 Nov
TRS15:00Trieste Ronchi dei Legionari
4h 45m
1 stop
LHR18:45London Heathrow
21 Nov
LHR15:30London Heathrow
6h 00m
1 stop
TRS22:30Trieste Ronchi dei Legionari
£168
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Lufthansa
27 Dec
TRS15:00Trieste Ronchi dei Legionari
8h 20m
1 stop
LHR22:20London Heathrow
30 Dec
LHR08:30London Heathrow
4h 30m
1 stop
TRS14:00Trieste Ronchi dei Legionari
£168
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Lufthansa
23 Oct
TRS06:30Trieste Ronchi dei Legionari
10h 10m
1 stop
LHR15:40London Heathrow
29 Oct
LHR11:30London Heathrow
10h 10m
1 stop
TRS22:40Trieste Ronchi dei Legionari
£169
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Air France flights from Trieste to London Heathrow Airport

Our best Air France deals on Trieste to London Heathrow Airport flight tickets
Air France
10 Oct
TRS06:35Trieste Ronchi dei Legionari
15h 50m
2 stops
LHR21:25London Heathrow
15 Oct
LHR09:00London Heathrow
8h 30m
2 stops
TRS18:30Trieste Ronchi dei Legionari
£450
Find similar
Air France
12 Oct
TRS11:15Trieste Ronchi dei Legionari
21h 45m
2 stops
LHR08:00London Heathrow
14 Oct
LHR19:45London Heathrow
21h 45m
2 stops
TRS18:30Trieste Ronchi dei Legionari
£527
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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 2 October 2025.
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

Thu 20/11

11:10-18:00

1 stop7h 50m

London Heathrow

Sat 29/11

09:55-22:45

1 stop11h 50m

£145

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Tue 4/11

19:15-09:10

2 stops14h 55m

London Heathrow

Sat 8/11

09:55-22:45

1 stop11h 50m

£163

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Fri 14/11

15:00-18:45

1 stop4h 45m

London Heathrow

Fri 21/11

15:30-22:30

1 stop6h 00m

£168

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Sat 27/12

15:00-22:20

1 stop8h 20m

London Heathrow

Tue 30/12

08:30-14:00

1 stop4h 30m

£168

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 23/10

06:30-15:40

1 stop10h 10m

London Heathrow

Wed 29/10

11:30-22:40

1 stop10h 10m

£169

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Sun 8/2

15:00-18:45

1 stop4h 45m

London Heathrow

Thu 12/2

13:30-22:40

1 stop8h 10m

£170

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Fri 7/11

06:25-10:45

1 stop5h 20m

London Heathrow

Fri 14/11

08:30-14:05

1 stop4h 35m

£174

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Fri 5/12

15:00-18:45

1 stop4h 45m

London Heathrow

Mon 8/12

10:30-22:25

1 stop10h 55m

£177

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Fri 26/12

20:30-08:05

1 stop12h 35m

London Heathrow

Mon 29/12

09:55-22:50

1 stop11h 55m

£183

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Sat 14/2

15:15-20:50

2 stops6h 35m

London Heathrow

Sun 22/2

08:40-18:30

2 stops8h 50m

£252

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?

Lufthansa, TAP AIR PORTUGAL, and Turkish Airlines 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

Direct flights

None
There are no direct flights from Trieste to London Heathrow Airport. There are no popular flight routes from Trieste to London Heathrow Airport.
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  • 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 45m.

  • 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.

Travelling to a place near London?

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Ipswich
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Poole
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Worthing
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Dover

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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