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Trieste

$104+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — TRS
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
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 13 days in advance, depart on a Monday or Tuesday and return on a Monday

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 July 18, 2026.

This ITA Airways deal was found by Cheapflights users on 7/13. 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 8/1210:30 am
LHR
-
TRS
1 stop11h 25m
ITA Airways
Thu 8/206:35 am
TRS
-
LHR
1 stop10h 05m
ITA Airways
Deal found 7/13$181
This ITA Airways deal was found by Cheapflights users on 7/15. 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.
Fri 10/3010:30 am
LHR
-
TRS
1 stop11h 25m
ITA Airways
Wed 11/117:15 pm
TRS
-
LHR
1 stop15h 25m
ITA Airways
Deal found 7/15$189
This ITA Airways deal was found by Cheapflights users on 7/15. 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.
Mon 9/214:30 pm
LHR
-
TRS
1 stop16h 55m
ITA Airways
Tue 9/293:15 pm
TRS
-
LHR
1 stop19h 25m
ITA Airways
Deal found 7/15$201
This ITA Airways deal was found by Cheapflights users on 7/13. 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.
Mon 11/164:30 pm
LHR
-
TRS
1 stop5h 25m
ITA Airways
Tue 11/1711:15 am
TRS
-
LHR
1 stop5h 25m
ITA Airways
Deal found 7/13$206
This ITA Airways deal was found by Cheapflights users on 7/14. 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.
Fri 9/254:30 pm
LHR
-
TRS
1 stop16h 55m
ITA Airways
Sat 10/173:15 pm
TRS
-
LHR
1 stop19h 25m
ITA Airways
Deal found 7/14$207
This ITA Airways deal was found by Cheapflights users on 7/13. 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 10/146:45 am
LCY
-
TRS
2 stops10h 45m
ITA Airways
Sat 10/1711:15 am
TRS
-
LCY
2 stops26h 55m
ITA Airways
Deal found 7/13$211
This ITA Airways deal was found by Cheapflights users on 7/15. 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.
Mon 11/210:30 am
LHR
-
TRS
1 stop11h 25m
ITA Airways
Mon 11/96:35 am
TRS
-
LHR
1 stop10h 05m
ITA Airways
Deal found 7/15$214
This ITA Airways deal was found by Cheapflights users on 7/15. 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.
Mon 9/214:30 pm
LHR
-
TRS
1 stop5h 25m
ITA Airways
Sun 9/273:15 pm
TRS
-
LHR
1 stop19h 25m
ITA Airways
Deal found 7/15$215
This ITA Airways deal was found by Cheapflights users on 7/16. 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.
Sat 9/264:30 pm
LHR
-
TRS
1 stop16h 55m
ITA Airways
Tue 9/297:15 pm
TRS
-
LHR
1 stop15h 25m
ITA Airways
Deal found 7/16$216
This ITA Airways deal was found by Cheapflights users on 7/15. 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 9/224:30 pm
LCY
-
TRS
2 stops16h 55m
ITA Airways
Thu 10/17:15 pm
TRS
-
LCY
2 stops24h 35m
ITA Airways
Deal found 7/15$219
This ITA Airways deal was found by Cheapflights users on 7/16. 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 9/226:45 am
LCY
-
TRS
2 stops26h 40m
ITA Airways
Tue 9/296:35 am
TRS
-
LCY
2 stops26h 50m
ITA Airways
Deal found 7/16$220
This Mytrip deal was found by Cheapflights users on 7/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/254:30 pm
LHR
-
TRS
1 stop5h 25m
ITA Airways
Fri 10/1611:15 am
TRS
-
LHR
1 stop5h 25m
ITA Airways
Deal found 7/14$221

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 July 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$181
(ITA Airways)

One-way from

$104
(Mytrip)

Popular in

December

Cheapest in

November

Average price

$184

Good one-way deal

$82 or less
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. 8% potential increase in price ($14 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 July 2026
Search Deals
Price to beat on a one-way flight from London (LON) to Trieste Ronchi dei Legionari.
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 July 18, 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

Wed 8/12

10:30 am-10:55 pm

1 stop11h 25m

Trieste Ronchi dei Legionari

Thu 8/20

6:35 am-3:40 pm

1 stop10h 05m

$181

LondonTrieste

LCY - TRS

LCYTRS

London City

Wed 10/14

6:45 am-6:30 pm

2 stops10h 45m

Trieste Ronchi dei Legionari

Sat 10/17

11:15 am-1:10 pm

2 stops26h 55m

$211

LondonTrieste

LCY - TRS

LCYTRS

London City

Tue 9/22

4:30 pm-10:25 am

2 stops16h 55m

Trieste Ronchi dei Legionari

Wed 9/30

7:15 pm-6:50 pm

2 stops24h 35m

$220

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Tue 9/22

10:30 am-6:30 pm

1 stop7h 00m

Trieste Ronchi dei Legionari

Tue 9/29

7:15 pm-9:40 am

1 stop15h 25m

$229

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Wed 10/14

4:30 pm-10:25 am

1 stop16h 55m

Trieste Ronchi dei Legionari

Thu 10/15

7:15 pm-9:40 am

1 stop15h 25m

$229

LondonTrieste

LCY - TRS

LCYTRS

London City

Thu 9/3

4:30 pm-2:30 pm

2 stops21h 00m

Trieste Ronchi dei Legionari

Mon 9/7

7:15 pm-1:10 pm

2 stops18h 55m

$273
Quickest round-trip

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Wed 8/5

8:30 am-1:45 pm

1 stop4h 15m

Trieste Ronchi dei Legionari

Sun 8/9

6:10 am-4:40 pm

1 stop11h 30m

$275

LondonTrieste

LCY - TRS

LCYTRS

London City

Wed 8/12

7:25 pm-6:30 pm

2 stops22h 05m

Trieste Ronchi dei Legionari

Wed 8/19

6:10 am-5:55 pm

1 stop12h 45m

$277

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Thu 10/22

4:30 pm-10:55 pm

1 stop5h 25m

Trieste Ronchi dei Legionari

Sun 11/1

3:15 pm-9:40 am

1 stop19h 25m

$287

LondonTrieste

LCY - TRS

LCYTRS

London City

Thu 7/30

9:15 am-10:25 pm

1 stop12h 10m

Trieste Ronchi dei Legionari

Thu 8/6

6:15 am-5:55 pm

1 stop12h 40m

$296

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/15

Showing 1-10 of 37 resultsSorted by cheapest first
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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, November is the cheapest month in which you can book a flight from London to Trieste (average of $84). Flying from London to Trieste in August is currently the most expensive (average of $250). 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 July 18, 2026.

It’s typically best to fly out from London to Trieste in the afternoon. Doing so could potentially save you 36% 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 12 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 July 18, 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
5,435 reviews

Crew

7.5

Overall

6.9

Entertainment

5.7

Comfort

6.5

Food

6.0

Boarding

6.7

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
5,435 reviews
Ryanair
6.9
Okay
5,435 reviews

Crew

7.5

Overall

6.9

Entertainment

5.7

Comfort

6.5

Food

6.0

Boarding

6.7

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?

    ITA Airways can get you from London to Trieste in just under 11h 25m. Your travel time can differ by up to . London and Trieste are separated by a distance of 744 mi.

  • 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, November is the cheapest month in which you can book a flight from London to Trieste (average of $84). Flying from London to Trieste in August is currently the most expensive (average of $250). 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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