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Trieste

$114+ 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — TRS
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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1. Tell us where you want to go

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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

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 December 21, 2025.

This Lufthansa deal was found by Cheapflights users on 12/21. 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.
Wed 12/248:30 amLHR - TRS
1 stop4h 30mLufthansa
Fri 1/23:00 pmTRS - LHR
1 stop6h 50mLufthansa
Deal found 12/21$508
This Lufthansa deal was found by Cheapflights users on 12/20. 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 12/217:30 amLHR - TRS
1 stop5h 35mLufthansa
Sat 12/273:00 pmTRS - LHR
1 stop8h 20mLufthansa
Deal found 12/20$534
This Lufthansa deal was found by Cheapflights users on 12/21. 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.
Mon 12/2210:30 amLHR - TRS
1 stop10h 55mLufthansa
Fri 1/23:00 pmTRS - LHR
1 stop6h 50mLufthansa
Deal found 12/21$545
This Lufthansa deal was found by Cheapflights users on 12/21. 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.
Wed 12/248:30 amLHR - TRS
1 stop4h 30mLufthansa
Sat 1/36:25 amTRS - LHR
1 stop11h 25mLufthansa
Deal found 12/21$558
This FlightHub deal was found by Cheapflights users on 12/20. 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 stop13h 20mLufthansa
Deal found 12/20$571
This Lufthansa deal was found by Cheapflights users on 12/21. 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.
Mon 12/2210:30 amLHR - TRS
1 stop10h 55mLufthansa
Sat 1/36:25 amTRS - LHR
1 stop9h 20mLufthansa
Deal found 12/21$596
This Lufthansa deal was found by Cheapflights users on 12/21. 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.
Mon 12/229:50 amLCY - TRS
1 stop11h 35mLufthansa
Fri 1/26:25 amTRS - LCY
1 stop12h 15mLufthansa
Deal found 12/21$599
This FlightHub deal was found by Cheapflights users on 12/20. 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 12/277:30 amLCY - TRS
2 stops25h 55mITA Airways
Sat 1/37:15 pmTRS - LCY
2 stops24h 15mITA Airways
Deal found 12/20$761
This ITA Airways deal was found by Cheapflights users on 12/20. 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 12/2011:30 amLCY - TRS
1 stop10h 25mITA Airways
Mon 12/297:35 amTRS - LCY
1 stop15h 15mITA Airways
Deal found 12/20$831

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 December 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$175
(oojo)

One-way from

$141
(oojo)

Popular in

December

Cheapest in

November

Average price

$275
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.
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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. 4% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 21, 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

LCY - TRS

LCYTRS

London City

Tue 2/3

7:30 am-6:30 pm

2 stops10h 00m

Trieste Ronchi dei Legionari

Tue 2/10

11:15 am-4:10 pm

1 stop5h 55m

$190

LondonTrieste

LCY - TRS

LCYTRS

London City

Wed 1/28

8:25 am-6:30 pm

1 stop9h 05m

Trieste Ronchi dei Legionari

Sun 2/1

11:15 am-4:10 pm

1 stop5h 55m

$216

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Tue 2/3

7:30 am-2:00 pm

1 stop5h 30m

Trieste Ronchi dei Legionari

Tue 2/10

6:15 am-10:45 am

1 stop5h 30m

$230

LondonTrieste

LCY - TRS

LCYTRS

London City

Wed 5/6

9:15 am-10:15 pm

1 stop12h 00m

Trieste Ronchi dei Legionari

Wed 5/20

2:40 pm-5:55 pm

1 stop4h 15m

$257

LondonTrieste

LCY - TRS

LCYTRS

London City

Mon 5/4

9:15 am-10:15 pm

1 stop12h 00m

Trieste Ronchi dei Legionari

Fri 5/8

6:00 am-5:55 pm

1 stop12h 55m

$258

LondonTrieste

LCY - TRS

LCYTRS

London City

Mon 5/4

9:15 am-10:15 pm

1 stop12h 00m

Trieste Ronchi dei Legionari

Mon 5/11

2:50 pm-5:55 pm

1 stop4h 05m

$258

LondonTrieste

LCY - TRS

LCYTRS

London City

Mon 5/4

9:15 am-10:15 pm

1 stop12h 00m

Trieste Ronchi dei Legionari

Sun 5/10

6:00 am-5:55 pm

1 stop12h 55m

$272

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Sat 5/2

8:30 am-9:55 pm

1 stop12h 25m

Trieste Ronchi dei Legionari

Fri 5/8

2:40 pm-8:45 pm

2 stops7h 05m

$278

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Fri 5/1

8:30 am-10:15 pm

1 stop12h 45m

Trieste Ronchi dei Legionari

Mon 5/4

2:50 pm-8:45 pm

2 stops6h 55m

$278

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Fri 5/1

8:30 am-10:15 pm

1 stop12h 45m

Trieste Ronchi dei Legionari

Sat 5/9

2:45 pm-8:45 pm

2 stops7h 00m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 26 results
1
2
3

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 December.
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 December 19, 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, December is the cheapest month in which you can book a flight from London to Trieste (average of $21). Flying from London to Trieste in July is currently the most expensive (average of $83). 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 December 21, 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.

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 December 21, 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
6.9
Okay
5,220 reviews

Crew

7.5

Overall

6.9

Comfort

6.5

Entertainment

5.6

Boarding

6.7

Food

6.0

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
6.9
Okay
5,220 reviews
Ryanair
6.9
Okay
5,220 reviews

Crew

7.5

Overall

6.9

Comfort

6.5

Entertainment

5.6

Boarding

6.7

Food

6.0

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?

    ITA Airways, Lufthansa, and Air Dolomiti can get you from London to Trieste in just under 5h 30m. Your travel time can differ by up to 6h 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, December is the cheapest month in which you can book a flight from London to Trieste (average of $21). Flying from London to Trieste in July is currently the most expensive (average of $83). 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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