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Trieste

$123+ 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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
LON — TRS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from London to Trieste Ronchi dei Legionari are usually found in February or November, booked 43 days in advance, depart on a Monday or Tuesday and return on a Tuesday

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 June 12, 2025.

Round-trip from

$169
(oojo)

One-way from

$123
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$169

Good one-way deal

$72 or less
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. 8% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a one-way flight from London (LON) to Trieste Ronchi dei Legionari.
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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 June 12, 2025.

This oojo deal was found by Cheapflights users on 6/10. 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.
Sun 10/57:15 pmLCY - TRS
1 stop24h 40mITA Airways
Fri 10/107:25 pmTRS - LCY
1 stop15h 40mITA Airways
Deal found 6/10$169
This Lufthansa deal was found by Cheapflights users on 6/10. 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.
Tue 7/86:30 amLHR - TRS
1 stop6h 35mLufthansa
Sat 7/196:30 amTRS - LHR
1 stop12h 10mLufthansa
Deal found 6/10$232
This Air Dolomiti deal was found by Cheapflights users on 6/11. 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 Air Dolomiti is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/88:45 amLCY - TRS
1 stop12h 40mAir Dolomiti
Wed 7/162:45 pmTRS - LCY
1 stop4h 50mAir Dolomiti
Deal found 6/11$257
This Expedia deal was found by Cheapflights users on 6/10. 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.
Tue 6/248:45 amLCY - TRS
1 stop12h 40mLufthansa
Tue 7/16:30 amTRS - LCY
1 stop13h 05mLufthansa
Deal found 6/10$258
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/227:25 pmLHR - TRS
2 stops11h 30mMultiple Airlines
Sat 7/512:45 pmTRS - LHR
1 stop9h 15mMultiple Airlines
Deal found 6/10$294
This Austrian Airlines deal was found by Cheapflights users on 6/11. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:00 amLHR - TRS
2 stops11h 35mAustrian Airlines
Wed 9/107:25 pmTRS - LHR
2 stops38h 20mAustrian Airlines
Deal found 6/11$345
This KLM deal was found by Cheapflights users on 6/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2510:00 amLCY - TRS
2 stops7h 35mKLM
Fri 8/296:35 amTRS - LCY
2 stops11h 05mKLM
Deal found 6/10$383
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/248:45 amLCY - TRS
1 stop4h 20mMultiple Airlines
Tue 6/247:15 pmTRS - LCY
1 stop15h 50mMultiple Airlines
Deal found 6/10$428
This KLM deal was found by Cheapflights users on 6/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/259:55 amLHR - TRS
2 stops7h 40mKLM
Fri 8/296:35 amTRS - LHR
2 stops10h 40mKLM
Deal found 6/10$456

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 June 12, 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

Sun 10/5

7:15 pm-8:55 pm

1 stop24h 40m

Trieste Ronchi dei Legionari

Fri 10/10

7:25 pm-10:05 am

1 stop15h 40m

$169

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Tue 7/8

6:30 am-2:05 pm

1 stop6h 35m

Trieste Ronchi dei Legionari

Sat 7/19

6:30 am-5:40 pm

1 stop12h 10m

$232

LondonTrieste

LCY - TRS

LCYTRS

London City

Tue 7/8

8:45 am-10:25 pm

1 stop12h 40m

Trieste Ronchi dei Legionari

Wed 7/16

2:45 pm-6:35 pm

1 stop4h 50m

$257

LondonTrieste

LCY - TRS

LCYTRS

London City

Tue 6/24

8:45 am-10:25 pm

1 stop12h 40m

Trieste Ronchi dei Legionari

Tue 7/1

6:30 am-6:35 pm

1 stop13h 05m

$258

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Sun 6/22

7:25 pm-7:55 am

2 stops11h 30m

Trieste Ronchi dei Legionari

Sat 7/5

12:45 pm-9:00 pm

1 stop9h 15m

$294

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Wed 9/3

6:00 am-6:35 pm

2 stops11h 35m

Trieste Ronchi dei Legionari

Wed 9/10

7:25 pm-8:45 am

2 stops38h 20m

$345

LondonTrieste

LCY - TRS

LCYTRS

London City

Mon 8/25

10:00 am-6:35 pm

2 stops7h 35m

Trieste Ronchi dei Legionari

Fri 8/29

6:35 am-4:40 pm

2 stops11h 05m

$383

LondonTrieste

LCY - TRS

LCYTRS

London City

Tue 6/24

8:45 am-2:05 pm

1 stop4h 20m

Trieste Ronchi dei Legionari

Tue 6/24

7:15 pm-10:05 am

1 stop15h 50m

$428

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Mon 8/25

9:55 am-6:35 pm

2 stops7h 40m

Trieste Ronchi dei Legionari

Fri 8/29

6:35 am-4:15 pm

2 stops10h 40m

$456

LondonTrieste

LHR - TRS

LHRTRS

London Heathrow

Thu 7/17

10:25 pm-2:30 pm

2 stops15h 05m

Trieste Ronchi dei Legionari

Mon 7/21

6:35 am-8:50 pm

2 stops15h 15m

$1,405

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 15 results
1
2

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 June 9, 2025.

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?

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 June 12, 2025.

It’s typically best to fly out from London to Trieste at noon. Doing so could potentially save you 3% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Trieste by month

Plan your trip to Trieste by taking into account the average rainfall totals by month.

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.

Temperature in Trieste by month

Plan your trip to Trieste by taking into account the average temperature totals by month.

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).

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 June 12, 2025.
Peruse reviews from past customers who have flown with KLM, Austrian Airlines and Turkish Airlines 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
1,358 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Austrian Airlines
7.6
Good
802 reviews
KLM
7.8
Good
1,358 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Turkish Airlines
7.3
Good
3,848 reviews
KLM
7.8
Good
1,358 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Lufthansa
6.8
Okay
7,136 reviews
KLM
7.8
Good
1,358 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
ITA Airways
6.7
Okay
990 reviews
KLM
7.8
Good
1,358 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

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.

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

    According to our current data, ITA Airways ($169), Lufthansa ($232), and Air Dolomiti ($257) offers the cheapest pricing from London to Trieste. Users have found that ITA Airways is 10% cheaper than the other options available to this destination.

  • 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 $123. 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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