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Cheap flights from London Luton Airport to Trieste from £35

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — TRS
16 Nov — 23 Nov1
1 adult
1 adult, Economy

Find flight deals from Luton to Trieste

Enter your travel dates to find the best prices.

Cheapest flights from Luton to Trieste
Explore the most affordable flight options available from Luton to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.

Sat 29/1105:25LTN - TRS
1 stop5h 45mMultiple Airlines
Sat 6/1212:45TRS - LTN
1 stop15h 10mMultiple Airlines
Deal found 15/10£74
Sun 16/1108:25LTN - TRS
1 stop9h 55mMultiple Airlines
Sat 22/1112:45TRS - LTN
1 stop15h 10mMultiple Airlines
Deal found 17/10£78
Fri 5/1219:45LTN - TRS
1 stop15h 25mMultiple Airlines
Thu 11/1218:55TRS - LTN
2 stops20h 05mMultiple Airlines
Deal found 16/10£95
Sat 15/1120:50LTN - TRS
2 stops15h 35mMultiple Airlines
Mon 17/1116:55TRS - LTN
1 stop15h 45mMultiple Airlines
Deal found 16/10£107
Thu 13/1120:50LTN - TRS
2 stops19h 00mMultiple Airlines
Mon 17/1116:55TRS - LTN
1 stop15h 45mMultiple Airlines
Deal found 16/10£110

Cheap flight deals from Luton to Trieste

Discover tips and strategies to find the most affordable flight options for your journey from Luton (LTN) 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 17 October 2025.

Round-trip from

£74

One-way from

£35

Popular in

December

Cheapest in

October

Average price

£78
29/11-6/12
  • 29/11-6/12
  • 2 total stops
  • 20h 55m total
  • London to Trieste
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8/12
  • 8/12
  • 1 total stop
  • 28h 20m total
  • London to Trieste
Search Deals
High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Luton 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 858,174 searches. Data last updated 17 October 2025.
Use the filters below to find and compare flights from London Luton Airport to Trieste that are best for you.

Fly from

Luton

Fly to

Trieste

Route

Depart

Return

Price

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sat 29/11

05:25-12:10

1 stop5h 45m

Trieste Ronchi dei Legionari

Sat 6/12

12:45-02:55

1 stop15h 10m

£74

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sun 16/11

08:25-19:20

1 stop9h 55m

Trieste Ronchi dei Legionari

Sat 22/11

12:45-02:55

1 stop15h 10m

£78

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Fri 5/12

19:45-12:10

1 stop15h 25m

Trieste Ronchi dei Legionari

Thu 11/12

18:55-14:00

2 stops20h 05m

£95

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sun 30/11

08:25-19:20

1 stop9h 55m

Trieste Ronchi dei Legionari

Sun 7/12

19:45-07:40

1 stop12h 55m

£107

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Thu 13/11

20:50-16:50

2 stops19h 00m

Trieste Ronchi dei Legionari

Mon 17/11

16:55-07:40

1 stop15h 45m

£110

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sat 15/11

09:20-22:45

1 stop12h 25m

Trieste Ronchi dei Legionari

Mon 17/11

16:55-07:40

1 stop15h 45m

£113

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Mon 8/12

06:50-12:10

1 stop28h 20m

£35

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Fri 31/10

14:20-22:10

1 stop6h 50m

£57

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Thu 20/11

14:50-18:35

2 stops26h 45m

£59

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sat 15/11

06:15-22:45

1 stop15h 30m

£63

Flights are sorted by cheapest return flights first.

Deals found on 16/10

Showing 1-10 of 15 results
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Best time to book a flight from Luton to Trieste

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

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

Currently, February is the cheapest month in which you can book a flight from London Luton Airport to Trieste (average of £18). Flying from London Luton Airport to Trieste in September is currently the most expensive (average of £80). 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.

Related info for your journey

Find useful and relevant information for your journey from Luton 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 Luton?

    If you book a flight to Trieste from London Luton, 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 Luton to Ronchi dei Legionari per day from 0 different airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Luton 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 Luton Airport to Trieste?

    Currently, February is the cheapest month in which you can book a flight from London Luton Airport to Trieste (average of £18). Flying from London Luton Airport to Trieste in September is currently the most expensive (average of £80). 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

Travelling to a place near Trieste?

Book flights to Trieste if you plan to visit one of these locations
Udine

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

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