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Cheap flights from Trieste to London from £83

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 25/4. 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.
Lufthansa Logo
06:15 - 15:50TRS-LHR
10h 35m1 stop
Lufthansa Logo
06:30 - 14:00LHR-TRS
6h 30m1 stop
£146Lufthansa
Find Deal
Thu, 12 Mar - Tue, 17 Mar
Lufthansa Logo
14:50 - 18:45TRS-LHR
4h 55m1 stop
Lufthansa Logo
08:30 - 14:10LHR-TRS
4h 40m1 stop
£147Lufthansa
Find Deal
Thu, 8 Jan - Thu, 15 Jan
Lufthansa Logo
06:15 - 09:45TRS-LHR
4h 30m1 stop
Lufthansa Logo
06:30 - 14:05LHR-TRS
6h 35m1 stop
£153Lufthansa
Find Deal
Thu, 8 Jan - Sun, 11 Jan
Lufthansa Logo
06:15 - 10:45TRS-LHR
5h 30m1 stop
Lufthansa Logo
20:15 - 14:00LHR-TRS
16h 45m2 stops
£168Lufthansa
Find Deal
Thu, 12 Mar - Tue, 17 Mar
Lufthansa Logo
15:00 - 21:00TRS-LHR
7h 00m2 stops
Lufthansa Logo
08:30 - 14:10LHR-TRS
4h 40m1 stop
£172Lufthansa
Find Deal
Sun, 18 Jan - Thu, 22 Jan
Lufthansa Logo
14:40 - 20:40TRS-LHR
7h 00m1 stop
Lufthansa Logo
15:30 - 22:15LHR-TRS
5h 45m1 stop
£182Lufthansa
Find Deal
Fri, 3 Apr - Tue, 7 Apr
Lufthansa Logo
14:40 - 21:00TRS-LHR
7h 20m2 stops
Lufthansa Logo
08:30 - 22:25LHR-TRS
12h 55m1 stop
£184Lufthansa
Find Deal
Wed, 31 Dec - Mon, 5 Jan
Multiple Airlines Logo
15:15 - 22:20TRS-LHR
8h 05m2 stops
Multiple Airlines Logo
07:30 - 14:00LHR-TRS
5h 30m1 stop
£187Multiple Airlines
Find Deal
Thu, 1 Jan - Tue, 6 Jan
Lufthansa Logo
14:50 - 21:00TRS-LHR
7h 10m2 stops
Lufthansa Logo
06:35 - 18:30LHR-TRS
10h 55m2 stops
£195Lufthansa
Find Deal
Thu, 12 Mar - Tue, 17 Mar
Multiple Airlines Logo
08:00 - 18:00TRS-LHR
11h 00m2 stops
Multiple Airlines Logo
20:50 - 19:55LHR-TRS
22h 05m2 stops
£196Multiple Airlines
Find Deal
Thu, 8 Jan - Thu, 15 Jan

Lufthansa flights from Trieste to London Heathrow Airport

Our best Lufthansa deals on Trieste to London Heathrow Airport flight tickets
Lufthansa
12 Mar
TRS06:15Trieste Ronchi dei Legionari
10h 35m
1 stop
LHR15:50London Heathrow
17 Mar
LHR06:30London Heathrow
6h 30m
1 stop
TRS14:00Trieste Ronchi dei Legionari
£146
Find similar
Lufthansa
8 Jan
TRS14:50Trieste Ronchi dei Legionari
4h 55m
1 stop
LHR18:45London Heathrow
15 Jan
LHR08:30London Heathrow
4h 40m
1 stop
TRS14:10Trieste Ronchi dei Legionari
£147
Find similar
Lufthansa
8 Jan
TRS06:15Trieste Ronchi dei Legionari
4h 30m
1 stop
LHR09:45London Heathrow
11 Jan
LHR06:30London Heathrow
6h 35m
1 stop
TRS14:05Trieste Ronchi dei Legionari
£153
Find similar

Air France flights from Trieste to London Heathrow Airport

Our best Air France deals on Trieste to London Heathrow Airport flight tickets
Air France
16 Jan
TRS15:15Trieste Ronchi dei Legionari
20h 15m
2 stops
LHR10:30London Heathrow
24 Jan
LHR19:20London Heathrow
18h 10m
2 stops
TRS14:30Trieste Ronchi dei Legionari
£274
Find similar
Air France
30 Nov
TRS11:15Trieste Ronchi dei Legionari
11h 10m
2 stops
LHR21:25London Heathrow
4 Dec
LHR08:55London Heathrow
13h 00m
2 stops
TRS22:55Trieste Ronchi dei Legionari
£1,669
Find similar

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 21 November 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 12/3

06:15-15:50

1 stop10h 35m

London Heathrow

Tue 17/3

06:30-14:00

1 stop6h 30m

£146

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 8/1

14:50-18:45

1 stop4h 55m

London Heathrow

Thu 15/1

08:30-14:10

1 stop4h 40m

£147

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 8/1

06:15-09:45

1 stop4h 30m

London Heathrow

Sun 11/1

06:30-14:05

1 stop6h 35m

£153

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 12/3

06:15-10:45

1 stop5h 30m

London Heathrow

Tue 17/3

20:15-14:00

2 stops16h 45m

£168

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Sun 18/1

15:00-21:00

2 stops7h 00m

London Heathrow

Thu 22/1

08:30-14:10

1 stop4h 40m

£172

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Fri 3/4

14:40-20:40

1 stop7h 00m

London Heathrow

Tue 7/4

15:30-22:15

1 stop5h 45m

£182

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Wed 31/12

14:40-21:00

2 stops7h 20m

London Heathrow

Mon 5/1

08:30-22:25

1 stop12h 55m

£184

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 1/1

15:15-22:20

2 stops8h 05m

London Heathrow

Tue 6/1

07:30-14:00

1 stop5h 30m

£187

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 12/3

14:50-21:00

2 stops7h 10m

London Heathrow

Tue 17/3

06:35-18:30

2 stops10h 55m

£195

TriesteLondon

TRS - LHR

TRSLHR

Trieste Ronchi dei Legionari

Thu 8/1

08:00-18:00

2 stops11h 00m

London Heathrow

Thu 15/1

20:50-19:55

2 stops22h 05m

£196

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

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 30m.

  • 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?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Northampton
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Poole
Guildford
Swanage
Dover
Colchester
Chelmsford
Hayes

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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