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Cheap flights from Trieste to London from £15

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
TRS — LON
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Trieste Ronchi dei Legionari to London are usually found in May or November, booked 37 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Trieste to London

Discover tips and strategies to find the most affordable flight options for your journey from Trieste (TRS) to London (LON). 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 20 November 2025.

Round-trip from

£34

One-way from

£15

Popular in

June

Cheapest in

May

Average price

£67

Good one-way deal

£16 or less
Ryanair
  • Ryanair
  • 1/12-7/12
  • Nonstop
  • 4h 10m total
  • Trieste to London
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Ryanair
  • Ryanair
  • 2/12
  • Nonstop
  • 2h 05m total
  • Trieste to London
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£1 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Price to beat on a one-way flight from Trieste Ronchi dei Legionari to London (LON).
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Find flight deals from Trieste to London

Enter your travel dates to find the best prices.

Cheapest flights from Trieste to London
Explore the most affordable flight options available from Trieste to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2025.

Mon 1/1220:55TRS - STN
Nonstop2h 05mRyanair
Sun 7/1206:45STN - TRS
Nonstop2h 05mRyanair
Deal found 19/11£34
Sat 6/1217:30TRS - STN
Nonstop2h 05mRyanair
Sun 7/1206:45STN - TRS
Nonstop2h 05mRyanair
Deal found 19/11£35
Sat 6/1217:30TRS - STN
Nonstop2h 05mMultiple Airlines
Sun 7/1211:25STN - TRS
1 stop6h 55mMultiple Airlines
Deal found 19/11£81
Fri 28/1110:00TRS - STN
Nonstop2h 05mRyanair
Sun 30/1106:45STN - TRS
Nonstop2h 05mRyanair
Deal found 19/11£86
Mon 1/1216:55TRS - LTN
1 stop15h 45mMultiple Airlines
Sun 7/1208:25LTN - TRS
1 stop9h 55mMultiple Airlines
Deal found 19/11£104
Fri 28/1122:35TRS - LTN
1 stop10h 05mMultiple Airlines
Sun 30/1108:25LTN - TRS
1 stop9h 55mMultiple Airlines
Deal found 19/11£124
Sat 6/1213:30TRS - LTN
1 stop10h 30mRyanair
Sun 7/1209:00LTN - TRS
1 stop9h 20mRyanair
Deal found 18/11£127
Fri 28/1120:30TRS - LTN
2 stops27h 30mRyanair
Sun 30/1109:00LTN - TRS
1 stop9h 20mRyanair
Deal found 18/11£134
Fri 5/1222:35TRS - LTN
1 stop14h 00mRyanair
Mon 8/1207:15LTN - TRS
1 stop8h 15mRyanair
Deal found 19/11£135
Mon 22/1216:55TRS - LTN
1 stop15h 45mMultiple Airlines
Mon 29/1206:25LTN - TRS
1 stop15h 25mMultiple Airlines
Deal found 18/11£140
Mon 22/1214:40TRS - LHR
1 stop5h 05mLufthansa
Mon 29/1209:30LHR - TRS
1 stop11h 55mLufthansa
Deal found 18/11£147
Fri 28/1120:30TRS - LGW
2 stops26h 10mMultiple Airlines
Sun 30/1107:15LGW - TRS
2 stops27h 15mMultiple Airlines
Deal found 18/11£155

Cheapflights Fare Finder

 
Customise your flight search to find flights from Trieste to London 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 858,174 searches. Data last updated 20 November 2025.
Use the filters below to find and compare flights from Trieste to London that are best for you.

Fly from

Trieste

Fly to

London

Route

Depart

Return

Price

TriesteLondon

TRS - STN

TRSSTN

Trieste Ronchi dei Legionari

Mon 1/12

20:55-22:00

Nonstop2h 05m

London Stansted

Sun 7/12

06:45-09:50

Nonstop2h 05m

£34

TriesteLondon

TRS - STN

TRSSTN

Trieste Ronchi dei Legionari

Sat 6/12

17:30-18:35

Nonstop2h 05m

London Stansted

Sun 7/12

06:45-09:50

Nonstop2h 05m

£35

TriesteLondon

TRS - STN

TRSSTN

Trieste Ronchi dei Legionari

Sun 18/1

10:15-11:20

Nonstop2h 05m

London Stansted

Sun 25/1

06:45-09:50

Nonstop2h 05m

£47

TriesteLondon

TRS - STN

TRSSTN

Trieste Ronchi dei Legionari

Sat 6/12

17:30-18:35

Nonstop2h 05m

London Stansted

Sun 7/12

11:25-19:20

1 stop6h 55m

£81

TriesteLondon

TRS - STN

TRSSTN

Trieste Ronchi dei Legionari

Mon 12/1

10:30-23:40

2 stops14h 10m

London Stansted

Thu 15/1

18:10-21:15

Nonstop2h 05m

£92

TriesteLondon

TRS - LTN

TRSLTN

Trieste Ronchi dei Legionari

Mon 1/12

16:55-07:40

1 stop15h 45m

London Luton

Sun 7/12

08:25-19:20

1 stop9h 55m

£104

TriesteLondon

TRS - LGW

TRSLGW

Trieste Ronchi dei Legionari

Sun 18/1

21:05-08:25

1 stop12h 20m

London Gatwick

Sun 25/1

08:25-20:40

1 stop11h 15m

£116

TriesteLondon

TRS - LTN

TRSLTN

Trieste Ronchi dei Legionari

Sun 18/1

21:05-08:55

1 stop12h 50m

London Luton

Sun 25/1

08:05-20:40

1 stop11h 35m

£121

TriesteLondon

TRS - LTN

TRSLTN

Trieste Ronchi dei Legionari

Mon 12/1

16:55-20:10

2 stops28h 15m

London Luton

Thu 15/1

20:50-22:45

2 stops24h 55m

£122

TriesteLondon

TRS - LTN

TRSLTN

Trieste Ronchi dei Legionari

Sun 18/1

21:05-08:55

1 stop12h 50m

London Luton

Sun 25/1

14:40-11:30

2 stops19h 50m

£125

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 60 results
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2
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Best time to book a flight from Trieste to London

Have a flexible travel schedule? Discover the best time to fly to London from Trieste 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 Trieste to London

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

Use this chart to determine the optimal time to book a return flight from Trieste to London. Price data was last updated on 14 November 2025.

The price you pay for your flight from Trieste to London may vary depending on when you book. For the best chance of a lower fare, look to book 37 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Trieste to London (average of £15). Flying from Trieste to London in August is currently the most expensive (average of £108). 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 TRS to LON?

Find hourly flight availability from Trieste to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 November 2025.

It’s optimal to fly from Trieste to London in the morning. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight in the afternoon.

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

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 20 November 2025.
See what other customers who have flown with Ryanair from Trieste to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Ryanair
6.8
Okay
5,196 reviews
Check prices

Entertainment

5.6

Food

6.0

Comfort

6.5

Overall

6.8

Boarding

6.7

Crew

7.5

Reviews

1 / 20
4.0
Okay

Mark,May 2025

BCN - STN

Departed an hour late, with zero indication that that would be the case, very poor communication / acknowledgement of the delay, with no explanation.
Ryanair
6.8
Okay
5,196 reviews
Ryanair
6.8
Okay
5,196 reviews
Check prices

Entertainment

5.6

Food

6.0

Comfort

6.5

Overall

6.8

Boarding

6.7

Crew

7.5

Reviews

1 / 20
4.0
Okay

Mark,May 2025

BCN - STN

Departed an hour late, with zero indication that that would be the case, very poor communication / acknowledgement of the delay, with no explanation.

Related info for your journey

Find useful and relevant information for your journey from Trieste to London. 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 from for flights from Trieste to London?

    Most people fly from Trieste Ronchi dei Legionari (TRS) if they book a flight from Trieste to London. On average, Ronchi dei Legionari has 0 outbound flights to 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 Trieste to London?

    A quick flight from Trieste to London can take about 2h 05m. Ryanair provides one of the quickest options available for as low as £34. Trieste and London are separated by a distance of 731 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Trieste to London?

    Most travelers choose Trieste Ronchi dei Legionari - London Heathrow, Trieste Ronchi dei Legionari - London Gatwick or Trieste Ronchi dei Legionari - London Stansted when deciding on the best route from Trieste to London.

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

    Yes. In addition to deals on Trieste to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Trieste to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Trieste to London.

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

    Yes. Cheapflights offers flight deals from Trieste to London 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 Trieste to London?

    Currently, January is the cheapest month in which you can book a flight from Trieste to London (average of £15). Flying from Trieste to London in August is currently the most expensive (average of £108). 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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