What are the cheapest airlines flying from London to Trieste round-trip?

According to our current data, ITA Airways ($187), Lufthansa ($232), and Air Dolomiti ($275) offers the cheapest pricing from London to Trieste.

What are the cheapest airlines to fly from London to Trieste one-way?

The cheapest airline one-way is ITA Airways, with whom users have recently found tickets for as low as $145. However, be on the lookout for offers from Lufthansa and Austrian Airlines, as they are both options that can get you from London to Trieste for a low price.

What is the cheapest day to fly from London to Trieste?

Travelers seeking maximum savings on their London to Trieste flight should consider departing on Thursday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Trieste ranges from 2.4 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. February is typically the driest time to visit Trieste when rainfall is around 2.4 in.

If weather is an important factor for your trip to Trieste, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

What is the cheapest day to fly round-trip from London to Trieste?

Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 69% on the overall cost on flights from London to Trieste.

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

Find a great deal and save up to 338% by booking at least 43 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London to Trieste within the next two weeks, with the cheapest ticket starting at $73.

What is the cheapest month to fly from London to Trieste?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, November can be a great choice for travel to Trieste. Flights to Trieste from London in November are about $186 on average during November, but can be found for as low as $72.

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.

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.

$169+ Flights from London to Trieste

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

Airfare is below average for this route at the moment. London to Trieste flights typically cost between $215 and $384 in October. The cheapest round-trip price found within the last 3 days was $200 on ITA Airways (Oct 5-Oct 13).

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Cheapflights Tip: The best prices from London to Trieste Ronchi dei Legionari are usually found in November or February, booked 42 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from London to Trieste

Round-trip from	$187 (oojo)
One-way from	$145 (Booking.com)
Popular in	December
Cheapest in	November
Average price	$222

From London (LON) to Trieste Ronchi dei Legionari

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One-way flight from London (LON) to Trieste Ronchi dei Legionari

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Highest demand for flights based on searches. 3% potential increase in price ($6 potential increase over avg. RT price).

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Cheapest flight prices on average. 8% potential price decrease ($15 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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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 julio 31, 2025.

dom. 10/52:10 pmLCY - TRS

1 stop5h 45mITA Airways

mié. 10/157:25 pmTRS - LCY

1 stop15h 40mITA Airways

Deal found 7/29

$200

vie. 8/159:30 amLHR - TRS

1 stop11h 55mLufthansa

mar. 8/196:30 amTRS - LHR

1 stop12h 10mLufthansa

Deal found 7/31

$232

mié. 8/65:00 pmLCY - TRS

1 stop4h 35mLufthansa

dom. 8/106:30 amTRS - LCY

1 stop11h 45mLufthansa

Deal found 7/31

$257

vie. 8/158:55 amLCY - TRS

1 stop12h 30mAir Dolomiti

dom. 8/176:30 amTRS - LCY

1 stop26h 40mAir Dolomiti

Deal found 7/31

$305

mié. 8/278:40 amLHR - TRS

2 stops8h 50mKLM

mié. 9/176:35 amTRS - LHR

2 stops10h 40mKLM

Deal found 7/30

$371

mar. 9/29:55 amLHR - TRS

2 stops7h 40mMultiple Airlines

sáb. 9/2011:15 amTRS - LHR

2 stops11h 10mMultiple Airlines

Deal found 7/30

$508

mar. 9/28:40 amLCY - TRS

2 stops8h 55mKLM

vie. 9/196:35 amTRS - LCY

2 stops11h 05mKLM

Deal found 7/30

$534

Best flights from London to Trieste
Discover carefully curated flight deals from London to Trieste that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 31, 2025.

dom. 10/57:15 pmLCY - TRS

1 stop14h 35mITA Airways

lun. 10/137:25 pmTRS - LCY

1 stop15h 40mITA Airways

Deal found 7/29

$200

vie. 8/159:30 amLHR - TRS

1 stop11h 55mLufthansa

mar. 8/196:30 amTRS - LHR

1 stop12h 10mLufthansa

Deal found 7/31

$232

vie. 8/158:55 amLCY - TRS

1 stop12h 30mAir Dolomiti

dom. 8/176:30 amTRS - LCY

1 stop26h 40mAir Dolomiti

Deal found 7/31

$305

mié. 8/278:40 amLHR - TRS

2 stops8h 50mKLM

mié. 9/176:35 amTRS - LHR

2 stops10h 40mKLM

Deal found 7/30

$371

mar. 9/29:55 amLHR - TRS

2 stops7h 40mMultiple Airlines

sáb. 9/2011:15 amTRS - LHR

2 stops11h 10mMultiple Airlines

Deal found 7/30

$508

vie. 8/158:55 amLCY - TRS

1 stop4h 10mLufthansa

mié. 8/202:45 pmTRS - LCY

1 stop4h 50mLufthansa

Deal found 7/31

$257

mar. 9/28:40 amLCY - TRS

2 stops8h 55mKLM

vie. 9/196:35 amTRS - LCY

2 stops11h 05mKLM

Deal found 7/30

$534

Last-minute flights from London to Trieste
Discover last-minute flight deals from London to Trieste. Data last updated julio 31, 2025 and is based on user searches.

mié. 8/65:00 pmLCY - TRS

1 stop4h 35mLufthansa

dom. 8/106:30 amTRS - LCY

1 stop11h 45mLufthansa

Deal found 7/31

$257

mié. 8/610:25 amLHR - TRS

2 stops11h 30mAustrian Airlines

dom. 8/106:35 amTRS - LHR

2 stops8h 45mAustrian Airlines

Deal found 7/31

$7,008

jue. 8/78:25 pmLHR - TRS

2 stops16h 40mLufthansa

jue. 8/148:00 amTRS - LHR

1 stop8h 40mLufthansa

Deal found 7/31

$365

jue. 8/76:30 amLHR - TRS

2 stops15h 25mMultiple Airlines

dom. 8/106:35 amTRS - LHR

2 stops16h 50mMultiple Airlines

Deal found 7/31

$2,024

mié. 8/131:45 pmLCY - TRS

1 stop6h 10mITA Airways

jue. 8/147:55 amTRS - LCY

1 stop25h 00mITA Airways

Deal found 7/30

$286

mié. 8/138:05 amLHR - TRS

2 stops13h 30mMultiple Airlines

jue. 8/146:30 amTRS - LHR

2 stops6h 00mMultiple Airlines

Deal found 7/30

$626

vie. 8/159:30 amLHR - TRS

1 stop11h 55mLufthansa

mar. 8/196:30 amTRS - LHR

1 stop12h 10mLufthansa

Deal found 7/31

$232

vie. 8/158:55 amLCY - TRS

1 stop12h 30mAir Dolomiti

dom. 8/176:30 amTRS - LCY

1 stop26h 40mAir Dolomiti

Deal found 7/31

$305

mié. 8/278:40 amLHR - TRS

2 stops8h 50mKLM

mié. 9/176:35 amTRS - LHR

2 stops10h 40mKLM

Deal found 7/30

$371

One-way flights from London to Trieste
Search for one-way flight options from London to Trieste. Find affordable one-way fares based on user searches. Data last updated julio 31, 2025.

jue. 9/46:15 amLHR - TRS

1 stop5h 15mMultiple Airlines

Deal found 7/30

$169

mié. 11/263:30 pmLHR - TRS

1 stop6h 05mLufthansa

Deal found 7/30

$182

jue. 9/48:45 amLCY - TRS

1 stop12h 50mLufthansa

Deal found 7/30

$192

jue. 9/44:50 pmLCY - TRS

2 stops17h 00mITA Airways

Deal found 7/30

$236

vie. 8/157:30 pmLHR - TRS

2 stops13h 55mAustrian Airlines

Deal found 7/30

$2,024

Fly from

Fly to

Route

Depart

Return

Price

LondonTrieste

LCY - TRS

LCYTRS

London City

dom. 10/5

7:15 pm-10:50 am

1 stop14h 35m

Trieste Ronchi dei Legionari

lun. 10/13

7:25 pm-10:05 am

1 stop15h 40m

$200

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

vie. 8/15

9:30 am-10:25 pm

1 stop11h 55m

Trieste Ronchi dei Legionari

mar. 8/19

6:30 am-5:40 pm

1 stop12h 10m

$232

LondonTrieste

LCY - TRS

LCYTRS

London City

vie. 8/15

8:55 am-2:05 pm

1 stop4h 10m

Trieste Ronchi dei Legionari

mié. 8/20

2:45 pm-6:35 pm

1 stop4h 50m

$257

LondonTrieste

LCY - TRS

LCYTRS

London City

vie. 8/15

8:55 am-10:25 pm

1 stop12h 30m

Trieste Ronchi dei Legionari

dom. 8/17

6:30 am-8:10 am

1 stop26h 40m

$305

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

mié. 8/27

8:40 am-6:30 pm

2 stops8h 50m

Trieste Ronchi dei Legionari

mié. 9/17

6:35 am-4:15 pm

2 stops10h 40m

$371

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

mar. 9/2

9:55 am-6:35 pm

2 stops7h 40m

Trieste Ronchi dei Legionari

sáb. 9/20

11:15 am-9:25 pm

2 stops11h 10m

$508

LondonTrieste

LCY - TRS

LCYTRS

London City

mar. 9/2

8:40 am-6:35 pm

2 stops8h 55m

Trieste Ronchi dei Legionari

vie. 9/19

6:35 am-4:40 pm

2 stops11h 05m

$534

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

jue. 9/4

6:15 am-12:30 pm

1 stop5h 15m

$169

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

mié. 11/26

3:30 pm-10:35 pm

1 stop6h 05m

$182

LondonTrieste

LCY - TRS

LCYTRS

London City

jue. 9/4

8:45 am-10:35 pm

1 stop12h 50m

$192

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 12 results

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?

The best time to book flights from London to Trieste is 42 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 time of day to fly from LON to TRS?

It’s typically best to fly out from London to Trieste in the morning. Doing so could potentially save you 9% on the flight price compared to flying at noon, which is usually more expensive.

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

Reviews of airlines servicing Trieste

Peruse reviews from past customers who have flown with KLM, Austrian Airlines, and Lufthansa 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.

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,383 reviews

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Austrian Airlines

7.6

Good

823 reviews

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Lufthansa

6.8

Okay

7,275 reviews

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

ITA Airways

6.7

Okay

1,011 reviews

KLM

7.8

Good

1,383 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

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.
What are the cheapest airlines flying from London to Trieste round-trip?
According to our current data, ITA Airways ($187), Lufthansa ($232), and Air Dolomiti ($275) offers the cheapest pricing from London to Trieste.
What are the cheapest airlines to fly from London to Trieste one-way?
The cheapest airline one-way is ITA Airways, with whom users have recently found tickets for as low as $145. However, be on the lookout for offers from Lufthansa and Austrian Airlines, as they are both options that can get you from London to Trieste for a low price.
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.

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$169+ 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.

Find cheap flights from London to Trieste with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from London to Trieste Ronchi dei Legionari are usually found in November or February, booked 42 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from London to Trieste

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from London to Trieste

Cheapest flights from London to TriesteExplore 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 julio 31, 2025.

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 julio 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Trieste that are best for you.

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.

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 July 25, 2025.

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 julio 31, 2025.

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

Reviews of airlines servicing Trieste

Peruse reviews from past customers who have flown with KLM, Austrian Airlines, and Lufthansa 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.

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?

What are the cheapest airlines flying from London to Trieste round-trip?

What are the cheapest airlines to fly from London to Trieste one-way?

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

How can I find direct flights from London to Trieste?

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

Browse thousands of different options on Cheapflights for your next trip

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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 julio 31, 2025.