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

Cheapflights users have booked flights from London to Trieste round-trip from £94. Other airlines that can offer you cheap pricing are ITA Airways, from £118, and Lufthansa, from £166. Ryanair is 32% cheaper than the average price of flights available within the next 90 days to this destination.

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

£23 is the cheapest one-way deal found within the past few days, from Ryanair. You may also be able to find cheap deals on Wizz Air and ITA Airways, with prices starting from £66 and £86, respectively.

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

Travellers seeking maximum savings on their London to Trieste flight should consider departing on Thursday at midday when fares are most often at their lowest. Saturday afternoons 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 62.0 - 114.0 inches per month. November is typically the wettest month, when rainfall can reach 114.0 mm. February is typically the driest time to visit Trieste when rainfall is around 62.0 mm.

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 24.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular routes from London to Trieste?

While some choose either London City - Trieste Ronchi dei Legionari or London Gatwick - Trieste Ronchi dei Legionari, London Heathrow - Trieste Ronchi dei Legionari is the most popular route from London to Trieste.

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

Leaving on a Tuesday 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 86% on the overall cost on flights from London to Trieste.

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

Users have found that booking a flight from London to Trieste at least 43 days early can save you up to 337% on average compared to booking a flight this week. If booking 43 days before your flight isn’t an option for you, users have found flights from London to Trieste for as little as £54 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £171 for flights departing within the next 3 days.

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

February can be a great time to fly to Trieste from London with a flight ticket averaging about £139. Cheapflights users have found deals in the month of February for as cheap as £18. The most expensive prices can be found in the month of December.

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

If you book a flight to Trieste from London, you will be flying to Ronchi dei Legionari, which is the city’s only airport. Trieste Ronchi dei Legionari (TRS) is located 18.2 mi from the center of Trieste. There are 0 flights from London to Ronchi dei Legionari per day from 2 different airlines.

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 holiday 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.

£23+ Flights from London to Trieste

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

Cheap flight deals from London to Trieste

Round-trip from	£94
One-way from	£23
Popular in	December
Cheapest in	February
Average price	£158
Good round-trip deal	£145 or less
Good one-way deal	£57 or less

Ryanair
26/8-29/8
Nonstop
4h 15m total
London to Trieste

Search Deals

Ryanair
11/10
Nonstop
2h 05m total
London to Trieste

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (£8 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 10% potential price decrease (£10 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Price to beat on a round-trip flight from London (LON) to Trieste Ronchi dei Legionari.

Search Deals

Price to beat on a one-way flight from London (LON) to Trieste Ronchi dei Legionari.

Search Deals

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 11 July 2025.

Tue 26/807:35STN - TRS

Nonstop2h 05mRyanair

Fri 29/814:00TRS - STN

Nonstop2h 10mRyanair

Deal found 10/7£94

Thu 11/919:45STN - TRS

Nonstop2h 05mMultiple Airlines

Tue 16/912:55TRS - STN

2 stops9h 15mMultiple Airlines

Deal found 10/7£97

Fri 12/919:15LTN - TRS

1 stop15h 55mMultiple Airlines

Fri 19/921:45TRS - LTN

1 stop11h 00mMultiple Airlines

Deal found 9/7£118

Fri 12/907:40LCY - TRS

1 stop12h 15mITA Airways

Fri 19/919:25TRS - LCY

1 stop15h 40mITA Airways

Deal found 9/7£118

Fri 12/909:15LGW - TRS

2 stops25h 55mMultiple Airlines

Fri 19/910:00TRS - LGW

1 stop10h 45mMultiple Airlines

Deal found 9/7£136

Fri 8/807:30LHR - TRS

1 stop13h 55mLufthansa

Sat 23/806:30TRS - LHR

1 stop13h 10mLufthansa

Deal found 10/7£166

Thu 11/912:05LGW - TRS

1 stop5h 30mITA Airways

Wed 17/906:35TRS - LGW

1 stop5h 40mITA Airways

Deal found 10/7£180

Wed 23/708:45LCY - TRS

1 stop4h 20mLufthansa

Sun 27/706:30TRS - LCY

1 stop11h 45mLufthansa

Deal found 9/7£193

Sat 23/822:10LTN - TRS

2 stops14h 45mRyanair

Sat 30/812:20TRS - LTN

1 stop10h 25mRyanair

Deal found 9/7£216

Sat 23/820:20LGW - TRS

2 stops16h 35mRyanair

Sat 30/812:20TRS - LGW

1 stop7h 35mRyanair

Deal found 9/7£217

Fri 12/908:05LHR - TRS

2 stops13h 20mMultiple Airlines

Fri 19/914:45TRS - LHR

2 stops18h 20mMultiple Airlines

Deal found 9/7£239

Tue 26/820:55LHR - TRS

2 stops20h 35mKLM

Fri 29/806:35TRS - LHR

2 stops26h 05mKLM

Deal found 10/7£255

Best flights from London to Trieste
Discover carefully curated flight deals from London to Trieste that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 July 2025.

Tue 26/807:35STN - TRS

Nonstop2h 05mRyanair

Fri 29/814:00TRS - STN

Nonstop2h 10mRyanair

Deal found 10/7£94

Thu 11/919:45STN - TRS

Nonstop2h 05mMultiple Airlines

Tue 16/912:55TRS - STN

2 stops9h 15mMultiple Airlines

Deal found 10/7£97

Fri 12/907:40LCY - TRS

1 stop12h 15mITA Airways

Fri 19/919:25TRS - LCY

1 stop15h 40mITA Airways

Deal found 9/7£118

Fri 8/807:30LHR - TRS

1 stop13h 55mLufthansa

Sat 23/806:30TRS - LHR

1 stop13h 10mLufthansa

Deal found 10/7£166

Fri 12/919:15LTN - TRS

1 stop15h 55mMultiple Airlines

Fri 19/921:45TRS - LTN

1 stop11h 00mMultiple Airlines

Deal found 9/7£118

Tue 26/820:55LHR - TRS

2 stops20h 35mKLM

Fri 29/806:35TRS - LHR

2 stops26h 05mKLM

Deal found 10/7£255

Fri 12/909:15LGW - TRS

2 stops25h 55mMultiple Airlines

Fri 19/910:00TRS - LGW

1 stop10h 45mMultiple Airlines

Deal found 9/7£136

Thu 11/912:05LGW - TRS

1 stop5h 30mITA Airways

Wed 17/906:35TRS - LGW

1 stop5h 40mITA Airways

Deal found 10/7£180

Wed 23/708:45LCY - TRS

1 stop4h 20mLufthansa

Sun 27/706:30TRS - LCY

1 stop11h 45mLufthansa

Deal found 9/7£193

Sat 23/822:10LTN - TRS

2 stops14h 45mRyanair

Sat 30/812:20TRS - LTN

1 stop10h 25mRyanair

Deal found 9/7£216

Sat 23/820:20LGW - TRS

2 stops16h 35mRyanair

Sat 30/812:20TRS - LGW

1 stop7h 35mRyanair

Deal found 9/7£217

Fri 12/908:05LHR - TRS

2 stops13h 20mMultiple Airlines

Fri 19/914:45TRS - LHR

2 stops18h 20mMultiple Airlines

Deal found 9/7£239

Last-minute flights from London to Trieste
Discover last-minute flight deals from London to Trieste. Data last updated 11 July 2025 and is based on user searches.

Wed 16/706:35STN - TRS

1 stop15h 25mMultiple Airlines

Wed 23/711:25TRS - STN

2 stops10h 10mMultiple Airlines

Deal found 9/7£190

Wed 16/718:50LCY - TRS

1 stop15h 00mITA Airways

Wed 23/707:55TRS - LCY

1 stop9h 00mITA Airways

Deal found 9/7£191

Wed 16/712:05LGW - TRS

1 stop5h 25mITA Airways

Sat 19/706:35TRS - LGW

1 stop5h 40mITA Airways

Deal found 10/7£316

Wed 16/707:25LHR - TRS

2 stops14h 10mMultiple Airlines

Wed 23/707:55TRS - LHR

2 stops8h 45mMultiple Airlines

Deal found 9/7£366

Thu 17/719:45STN - TRS

Nonstop2h 05mRyanair

Tue 22/706:00TRS - STN

Nonstop2h 10mRyanair

Deal found 10/7£146

Thu 17/720:25LGW - TRS

1 stop12h 10mMultiple Airlines

Thu 24/713:15TRS - LGW

1 stop7h 30mMultiple Airlines

Deal found 10/7£196

Thu 17/707:30LHR - TRS

1 stop5h 35mLufthansa

Thu 24/706:30TRS - LHR

1 stop15h 10mLufthansa

Deal found 10/7£210

Thu 17/707:20LTN - TRS

1 stop4h 10mMultiple Airlines

Fri 18/721:45TRS - LTN

1 stop11h 00mMultiple Airlines

Deal found 10/7£219

Thu 17/708:45LCY - TRS

1 stop12h 50mAir Dolomiti

Wed 23/714:45TRS - LCY

1 stop4h 50mAir Dolomiti

Deal found 10/7£238

Thu 17/708:45LCY - TRS

1 stop4h 20mMultiple Airlines

Thu 17/719:15TRS - LCY

1 stop15h 50mMultiple Airlines

Deal found 10/7£350

Thu 17/706:30LHR - TRS

2 stops15h 25mKLM

Thu 24/706:35TRS - LHR

2 stops12h 00mKLM

Deal found 10/7£488

Fri 18/711:05SEN - TRS

2 stops8h 50mMultiple Airlines

Sun 20/706:35TRS - SEN

2 stops9h 45mMultiple Airlines

Deal found 10/7£610

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 11 July 2025.

Sat 11/1007:35STN - TRS

Nonstop2h 05mRyanair

Deal found 11/7£23

Mon 22/919:15LTN - TRS

1 stop16h 05mMultiple Airlines

Deal found 10/7£35

Sat 23/814:50LGW - TRS

1 stop7h 10mMultiple Airlines

Deal found 8/7£60

Sat 11/1006:15STN - TRS

1 stop11h 30mMultiple Airlines

Deal found 11/7£63

Thu 2/1008:10LGW - TRS

2 stops9h 35mWizz Air

Deal found 9/7£66

Tue 19/816:55LTN - TRS

1 stop4h 40mRyanair

Deal found 9/7£66

Mon 22/912:05LGW - TRS

1 stop5h 30mITA Airways

Deal found 10/7£86

Tue 14/1020:50LHR - TRS

1 stop21h 55mMultiple Airlines

Deal found 9/7£91

Mon 22/908:30LCY - TRS

1 stop24h 55mITA Airways

Deal found 10/7£94

Sat 23/820:20LGW - TRS

2 stops16h 35mRyanair

Deal found 8/7£115

Fri 15/810:30LHR - TRS

1 stop10h 55mLufthansa

Deal found 11/7£134

Tue 19/809:55LHR - TRS

2 stops7h 35mKLM

Deal found 9/7£138

Cheapflights Fare Finder

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

LondonTrieste

STN - TRS

STNTRS

London Stansted

Tue 26/8

07:35-10:40

Nonstop2h 05m

Trieste Ronchi dei Legionari

Fri 29/8

14:00-15:10

Nonstop2h 10m

£94

LondonTrieste

STN - TRS

STNTRS

London Stansted

Thu 11/9

19:45-22:50

Nonstop2h 05m

Trieste Ronchi dei Legionari

Tue 16/9

12:55-21:10

2 stops9h 15m

£97

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Fri 12/9

19:15-12:10

1 stop15h 55m

Trieste Ronchi dei Legionari

Fri 19/9

21:45-07:45

1 stop11h 00m

£118

LondonTrieste

LCY - TRS

LCYTRS

London City

Fri 12/9

07:40-20:55

1 stop12h 15m

Trieste Ronchi dei Legionari

Fri 19/9

19:25-10:05

1 stop15h 40m

£118

LondonTrieste

LGW - TRS

LGWTRS

London Gatwick

Fri 12/9

09:15-12:10

2 stops25h 55m

Trieste Ronchi dei Legionari

Fri 19/9

10:00-19:45

1 stop10h 45m

£136

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Fri 8/8

07:30-22:25

1 stop13h 55m

Trieste Ronchi dei Legionari

Sat 23/8

06:30-18:40

1 stop13h 10m

£166

LondonTrieste

LGW - TRS

LGWTRS

London Gatwick

Thu 11/9

12:05-18:35

1 stop5h 30m

Trieste Ronchi dei Legionari

Wed 17/9

06:35-11:15

1 stop5h 40m

£180

LondonTrieste

LCY - TRS

LCYTRS

London City

Wed 23/7

08:45-14:05

1 stop4h 20m

Trieste Ronchi dei Legionari

Sun 27/7

06:30-17:15

1 stop11h 45m

£193

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sat 23/8

22:10-13:55

2 stops14h 45m

Trieste Ronchi dei Legionari

Sat 30/8

12:20-21:45

1 stop10h 25m

£216

LondonTrieste

LGW - TRS

LGWTRS

London Gatwick

Sat 23/8

20:20-13:55

2 stops16h 35m

Trieste Ronchi dei Legionari

Sat 30/8

12:20-18:55

1 stop7h 35m

£217

Flights are sorted by cheapest return flights first.

Deals found on 11/7

Showing 1-10 of 27 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 return 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 price you pay for your flight from London to Trieste may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

It’s typically best to fly out from London to Trieste at midday. Doing so could potentially save you 40% on the flight price compared to flying in the afternoon, which is usually more expensive.

How much does it cost for a return flight from London to Trieste?

Reviews of airlines servicing Trieste

Get a feel of what it's like to fly with KLM, Ryanair, andLufthansa from London to Trieste by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,372 reviews

Check prices

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

1,372 reviews

KLM

7.8

Good

1,372 reviews

Check prices

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.

Ryanair

6.9

Okay

5,150 reviews

KLM

7.8

Good

1,372 reviews

Check prices

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

7,200 reviews

KLM

7.8

Good

1,372 reviews

Check prices

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.

Wizz Air

6.8

Okay

365 reviews

KLM

7.8

Good

1,372 reviews

Check prices

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

6.6

Okay

1,001 reviews

KLM

7.8

Good

1,372 reviews

Check prices

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?
If you book a flight to Trieste from London, you will be flying to Ronchi dei Legionari, which is the city’s only airport. Trieste Ronchi dei Legionari (TRS) is located 18.2 mi from the center of Trieste. There are 0 flights from London to Ronchi dei Legionari per day from 2 different airlines.
What are the cheapest airlines flying from London to Trieste round-trip?
Cheapflights users have booked flights from London to Trieste round-trip from £94. Other airlines that can offer you cheap pricing are ITA Airways, from £118, and Lufthansa, from £166. Ryanair is 32% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from London to Trieste one-way?
£23 is the cheapest one-way deal found within the past few days, from Ryanair. You may also be able to find cheap deals on Wizz Air and ITA Airways, with prices starting from £66 and £86, respectively.
What are the most popular routes from London to Trieste?
While some choose either London City - Trieste Ronchi dei Legionari or London Gatwick - Trieste Ronchi dei Legionari, London Heathrow - Trieste Ronchi dei Legionari is the most popular route from London to Trieste.
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 holiday 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.

See more FAQs

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Top 2 airlines flying from London to Trieste

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£30	Average£92	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Lufthansa	Cheapest£144	Average£220	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Trieste?

Cheapflights makes it easy to find London to Trieste flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Trieste?

Cheapflights simply makes it quick and affordable to book flights from London to Trieste by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London to Trieste with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Trieste flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to Trieste become cheaper?

Yes, Cheapflights offers price alerts on London to Trieste flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from London to Trieste from £23

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.

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

Cheap flight deals from London to Trieste

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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 11 July 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 11 July 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 return flight from London to Trieste. Price data was last updated on 27 June 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 11 July 2025.

How much does it cost for a return flight from London to Trieste?

Reviews of airlines servicing Trieste

Get a feel of what it's like to fly with KLM, Ryanair, andLufthansa from London to Trieste by reading reviews from past customers. Users have also rated airlines 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?

What are the most popular routes from London to Trieste?

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?

Travelling to a place near London?

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Alternative routes for London to Trieste

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from London to Trieste

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How does Cheapflights help users find flights from London to Trieste?

Why should you use Cheapflights to find cheap flight tickets from London to Trieste?

Can Cheapflights find flights from London to Trieste with no change fees?

Can Cheapflights notify me if prices for flights from London to Trieste become cheaper?

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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 11 July 2025.