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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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
LON — TRS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 Tuesday

Find 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 October 30, 2025.

This Lufthansa deal was found by Cheapflights users on 10/30. 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 12/78:30 amLHR - TRS
1 stop4h 35mLufthansa
Sat 12/136:25 amTRS - LHR
1 stop7h 25mLufthansa
Deal found 10/30$225
This Lufthansa deal was found by Cheapflights users on 10/30. 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.
Fri 12/54:30 pmLHR - TRS
1 stop5h 00mLufthansa
Sun 12/73:00 pmTRS - LHR
1 stop4h 45mLufthansa
Deal found 10/30$226
This Lufthansa deal was found by Cheapflights users on 10/29. 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.
Fri 11/214:30 pmLHR - TRS
1 stop5h 00mLufthansa
Sun 11/233:00 pmTRS - LHR
1 stop4h 45mLufthansa
Deal found 10/29$228
This oojo deal was found by Cheapflights users on 10/30. 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 10/317:30 amLCY - TRS
1 stop3h 50mITA Airways
Fri 11/71:05 pmTRS - LCY
1 stop9h 45mITA Airways
Deal found 10/30$247
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/161:15 pmLCY - TRS
1 stop22h 05mITA Airways
Tue 11/181:05 pmTRS - LCY
1 stop4h 00mITA Airways
Deal found 10/29$268
This Lufthansa deal was found by Cheapflights users on 10/29. 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.
Fri 11/147:30 pmLHR - TRS
1 stop17h 35mLufthansa
Sun 11/163:00 pmTRS - LHR
1 stop4h 45mLufthansa
Deal found 10/29$269
This Lufthansa deal was found by Cheapflights users on 10/30. 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 12/148:30 amLHR - TRS
1 stop4h 35mLufthansa
Sun 12/213:00 pmTRS - LHR
1 stop8h 20mLufthansa
Deal found 10/30$270
This Expedia deal was found by Cheapflights users on 10/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/137:25 amLCY - TRS
2 stops34h 05mITA Airways
Sat 12/203:15 pmTRS - LCY
2 stops22h 25mITA Airways
Deal found 10/29$288
This Expedia deal was found by Cheapflights users on 10/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/137:30 pmLHR - TRS
1 stop17h 35mLufthansa
Sat 12/203:00 pmTRS - LHR
2 stops18h 05mLufthansa
Deal found 10/29$293
This Gotogate deal was found by Cheapflights users on 10/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:30 pmLHR - TRS
1 stop5h 10mMultiple Airlines
Mon 11/171:05 pmTRS - LHR
2 stops8h 55mMultiple Airlines
Deal found 10/29$356
This FlightHub deal was found by Cheapflights users on 10/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/75:30 pmLHR - TRS
1 stop4h 00mLufthansa
Mon 11/102:40 pmTRS - LHR
1 stop8h 40mLufthansa
Deal found 10/29$370
This FlightHub deal was found by Cheapflights users on 10/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/278:30 amLHR - TRS
1 stop4h 35mLufthansa
Sat 1/36:25 amTRS - LHR
1 stop11h 25mLufthansa
Deal found 10/29$371

Cheap 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$225
(Kiwi.com)

One-way from

$104
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$107
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
High demand for flights, 4% potential price rise
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 30, 2025.
Use the filters below to find and compare flights from London to Trieste that are best for you.

Fly from

London

Fly to

Trieste

Route

Depart

Return

Price

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Sat 12/13

7:30 am-2:05 pm

1 stop5h 35m

Trieste Ronchi dei Legionari

Sat 12/20

3:00 pm-6:45 pm

1 stop4h 45m

$225

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Sun 12/7

8:30 am-2:05 pm

1 stop4h 35m

Trieste Ronchi dei Legionari

Sat 12/13

6:25 am-12:50 pm

1 stop7h 25m

$225

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Fri 12/5

4:30 pm-10:30 pm

1 stop5h 00m

Trieste Ronchi dei Legionari

Sun 12/7

3:00 pm-6:45 pm

1 stop4h 45m

$226

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Fri 11/21

4:30 pm-10:30 pm

1 stop5h 00m

Trieste Ronchi dei Legionari

Sun 11/23

3:00 pm-6:45 pm

1 stop4h 45m

$228

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Tue 4/28

10:50 am-10:15 pm

2 stops10h 25m

Trieste Ronchi dei Legionari

Sat 5/2

2:40 pm-10:10 pm

1 stop8h 30m

$245

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Sat 3/14

8:30 am-2:05 pm

1 stop4h 35m

Trieste Ronchi dei Legionari

Mon 3/16

2:40 pm-9:00 pm

2 stops7h 20m

$259

LondonTrieste

LCY - TRS

LCYTRS

London City

Sun 11/16

1:15 pm-12:20 pm

1 stop22h 05m

Trieste Ronchi dei Legionari

Tue 11/18

1:05 pm-4:05 pm

1 stop4h 00m

$268

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Fri 11/14

7:30 pm-2:05 pm

1 stop17h 35m

Trieste Ronchi dei Legionari

Sun 11/16

3:00 pm-6:45 pm

1 stop4h 45m

$269

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Sun 12/14

8:30 am-2:05 pm

1 stop4h 35m

Trieste Ronchi dei Legionari

Sun 12/21

3:00 pm-10:20 pm

1 stop8h 20m

$270

LondonTrieste

LCY - TRS

LCYTRS

London City

Sat 12/13

7:25 am-6:30 pm

2 stops34h 05m

Trieste Ronchi dei Legionari

Sat 12/20

3:15 pm-12:40 pm

2 stops22h 25m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 30 results
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Compare providers for flights from London to Trieste

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to Trieste in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London-Trieste flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on London-Trieste flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

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

Use this chart to determine the optimal time to book a round-trip flight from London to Trieste. Price data was last updated on October 24, 2025.

The best time to book flights from London to Trieste is 13 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.

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

Currently, February is the cheapest month in which you can book a flight from London to Trieste (average of $25). Flying from London to Trieste in August is currently the most expensive (average of $100). 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 October 30, 2025.

It’s typically best to fly out from London to Trieste in the evening. Doing so could potentially save you 45% on the flight price compared to flying in the morning, which is usually more expensive.

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

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 October 30, 2025.
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
6.8
Okay
5,188 reviews

Comfort

6.5

Entertainment

5.6

Food

6.0

Overall

6.8

Crew

7.5

Boarding

6.7

Reviews

1 / 20
2.0
Mediocre

brendan,Sep 2025

MAN - NTE

It would have been better if I had a flown with Ryanair but I was ill and warm be coming back on the return flight
Ryanair
6.8
Okay
5,188 reviews
Ryanair
6.8
Okay
5,188 reviews

Comfort

6.5

Entertainment

5.6

Food

6.0

Overall

6.8

Crew

7.5

Boarding

6.7

Reviews

1 / 20
2.0
Mediocre

brendan,Sep 2025

MAN - NTE

It would have been better if I had a flown with Ryanair but I was ill and warm be coming back on the return flight

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 ITA Airways can get you from London to Trieste in just under 5h 35m. Your travel time can differ by up to 16h 30m. 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, February is the cheapest month in which you can book a flight from London to Trieste (average of $25). Flying from London to Trieste in August is currently the most expensive (average of $100). 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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