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Trieste

$106+ Cheap flights from London (LON) to Trieste (TRS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — TRS
Jun 30 — Jul 71
Tue 6/30
Tue 7/7
1 adult, Economy
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Cheapflights Tip: The best prices from London to Trieste Ronchi dei Legionari are usually found in November or October, booked 10 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from London to Trieste

Cheapest flights from London to Trieste
Explore the most affordable flight options available from London to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 31, 2026.

This ITA Airways deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:30 am
LHR
-
TRS
1 stop11h 25m
ITA Airways
Thu 11/2611:15 am
TRS
-
LHR
1 stop5h 25m
ITA Airways
Deal found 5/26$182
This oojo deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:30 pm
LHR
-
TRS
1 stop16h 55m
ITA Airways
Thu 7/93:15 pm
TRS
-
LHR
1 stop19h 25m
ITA Airways
Deal found 5/30$256
This oojo deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/23:30 pm
LHR
-
TRS
1 stop5h 55m
Lufthansa
Fri 7/102:40 pm
TRS
-
LHR
1 stop8h 30m
Lufthansa
Deal found 5/27$261
This ITA Airways deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/144:30 pm
LHR
-
TRS
1 stop5h 25m
Multiple Airlines
Tue 7/212:45 pm
TRS
-
LHR
1 stop4h 55m
Multiple Airlines
Deal found 5/30$265
This ITA Airways deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:30 pm
LHR
-
TRS
1 stop5h 25m
Multiple Airlines
Tue 7/146:20 am
TRS
-
LHR
1 stop5h 20m
Multiple Airlines
Deal found 5/28$266
This ITA Airways deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:30 am
LHR
-
TRS
1 stop7h 00m
ITA Airways
Thu 11/2611:15 am
TRS
-
LHR
1 stop5h 25m
ITA Airways
Deal found 5/26$267
This oojo deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/284:30 pm
LHR
-
TRS
1 stop5h 25m
ITA Airways
Mon 8/317:15 pm
TRS
-
LHR
1 stop15h 25m
ITA Airways
Deal found 5/30$269
This oojo deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/14:30 pm
LHR
-
TRS
1 stop16h 55m
ITA Airways
Fri 7/107:15 pm
TRS
-
LHR
1 stop15h 25m
ITA Airways
Deal found 5/27$270
This oojo deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/11:45 pm
LCY
-
TRS
2 stops19h 40m
ITA Airways
Fri 7/1011:15 am
TRS
-
LCY
2 stops8h 35m
ITA Airways
Deal found 5/30$272
This oojo deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/254:30 pm
LCY
-
TRS
2 stops16h 55m
ITA Airways
Thu 7/23:15 pm
TRS
-
LCY
2 stops18h 20m
ITA Airways
Deal found 5/28$274
This Lufthansa deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/199:30 am
LHR
-
TRS
1 stop11h 45m
Lufthansa
Fri 7/316:10 am
TRS
-
LHR
1 stop12h 30m
Lufthansa
Deal found 5/29$274
This Lufthansa deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:30 am
LHR
-
TRS
1 stop12h 45m
Lufthansa
Sun 9/136:10 am
TRS
-
LHR
1 stop12h 30m
Lufthansa
Deal found 5/30$275

Find flight deals from London to Trieste

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Trieste (TRS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 31, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$182
(ITA Airways)

One-way from

$106
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$194
Provider with most accurate pricing for London (LON)-Trieste Ronchi dei Legionari flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Trieste Ronchi dei Legionari flights.
Search Deals
From London (LON) to Trieste Ronchi dei Legionari
Search Deals
One-way flight from London (LON) to Trieste Ronchi dei Legionari
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Trieste 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, Cheapflights users made 2,558,603 searches. Data last updated May 31, 2026.
Use the filters below to find and compare flights from London to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Sat 11/14

4:30 pm-10:25 am

1 stop16h 55m

Trieste Ronchi dei Legionari

Sun 11/29

11:15 am-3:40 pm

1 stop5h 25m

$267

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Sat 7/11

11:30 am-9:55 pm

1 stop9h 25m

Trieste Ronchi dei Legionari

Mon 7/13

2:50 pm-8:40 pm

1 stop6h 50m

$274

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Mon 7/13

8:30 am-10:15 pm

1 stop12h 45m

Trieste Ronchi dei Legionari

Mon 7/20

2:50 pm-10:10 pm

1 stop8h 20m

$274

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Fri 6/26

8:30 am-10:15 pm

1 stop12h 45m

Trieste Ronchi dei Legionari

Sun 6/28

6:10 am-6:40 pm

1 stop13h 30m

$275

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Sun 7/5

8:30 am-10:15 pm

1 stop12h 45m

Trieste Ronchi dei Legionari

Tue 7/14

2:45 pm-6:40 pm

1 stop4h 55m

$275
Quickest round-trip

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Thu 7/2

4:30 pm-10:55 pm

1 stop5h 25m

Trieste Ronchi dei Legionari

Mon 7/6

2:50 pm-10:10 pm

1 stop8h 20m

$280

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Mon 11/9

10:30 am-10:55 pm

1 stop11h 25m

Trieste Ronchi dei Legionari

Thu 11/26

11:15 am-3:40 pm

1 stop5h 25m

$280

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Sat 8/29

11:30 am-9:55 pm

1 stop9h 25m

Trieste Ronchi dei Legionari

Mon 9/7

6:35 am-3:40 pm

1 stop10h 05m

$283

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Sat 8/29

4:30 pm-10:55 pm

1 stop5h 25m

Trieste Ronchi dei Legionari

Mon 9/7

6:35 am-3:40 pm

1 stop10h 05m

$288

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Tue 10/13

4:30 pm-10:55 pm

1 stop5h 25m

Trieste Ronchi dei Legionari

Thu 10/15

3:15 pm-9:40 am

1 stop19h 25m

$293

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/29

Showing 1-10 of 35 resultsSorted by cheapest first
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2
3
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  • Most accurate provider: When it comes to deals on London-Trieste flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London-Trieste flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London-Trieste flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London-Trieste flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London-Trieste flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from London to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from London with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Trieste

What is the cheapest month to book a flight from London to Trieste?

Currently, July is the cheapest month in which you can book a flight from London to Trieste (average of $26). Flying from London to Trieste in January is currently the most expensive (average of $189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to TRS?

Find hourly flight availability from London to Trieste. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 31, 2026.

It’s typically best to fly out from London to Trieste in the morning. Doing so could potentially save you 52% on the flight price compared to flying in the evening, which is usually more expensive.

How much does it cost to fly round-trip from London to Trieste?

How far ahead should I book a flight from London to Trieste?

The best time to book flights from London to Trieste is 11 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Trieste

Get insights into the airlines that provide service to Trieste. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Trieste. Reviews last updated May 31, 2026.
Peruse reviews from past customers who have flown with Ryanair from London to Trieste to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Ryanair
6.9
Okay
5,381 reviews

Comfort

6.5

Food

6.0

Entertainment

5.6

Boarding

6.7

Crew

7.5

Overall

6.9

Reviews

1 / 20
2.0
Mediocre

Nadia,Mar 2026

STN - TLL

Terrible they overbooked a didn't let 2 of our friends on, absolute shambles
Ryanair
6.9
Okay
5,381 reviews
Ryanair
6.9
Okay
5,381 reviews

Comfort

6.5

Food

6.0

Entertainment

5.6

Boarding

6.7

Crew

7.5

Overall

6.9

Reviews

1 / 20
2.0
Mediocre

Nadia,Mar 2026

STN - TLL

Terrible they overbooked a didn't let 2 of our friends on, absolute shambles

Related info for your journey

Find useful and relevant information for your journey from London to Trieste. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Trieste from London?

    Most people fly into Trieste Ronchi dei Legionari (TRS) if they book a flight to Trieste from London. On average, Ronchi dei Legionari has 0 inbound flights from London per day from 0 airlines. Trieste Ronchi dei Legionari is conveniently located just 18.2 mi from Trieste’s city center.

  • How long is the flight from London to Trieste?

    Lufthansa and Air Dolomiti can get you from London to Trieste in just under 9h 25m. Your travel time can differ by up to 2h 45m. London and Trieste are separated by a distance of 744 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from London to Trieste that include hotel bookings?

    Yes. In addition to deals on London to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Trieste?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Trieste.

  • Can I find deals for business class flights from London to Trieste?

    Yes. Cheapflights offers flight deals from London to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Trieste?

    Currently, July is the cheapest month in which you can book a flight from London to Trieste (average of $26). Flying from London to Trieste in January is currently the most expensive (average of $189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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