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Cheap flights from London Luton Airport to Trieste from £46

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — TRS
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

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 14 November 2025.

Mon 24/1107:15LTN - TRS
1 stop8h 15mRyanair
Sun 30/1121:05TRS - LTN
1 stop15h 40mRyanair
Deal found 12/11£104
Sun 7/1208:25LTN - TRS
1 stop9h 55mMultiple Airlines
Sun 14/1219:45TRS - LTN
1 stop12h 55mMultiple Airlines
Deal found 11/11£119
Thu 11/1214:50LTN - TRS
2 stops26h 45mMultiple Airlines
Thu 18/1211:10TRS - LTN
1 stop12h 20mMultiple Airlines
Deal found 11/11£120
Sat 6/1220:50LTN - TRS
2 stops15h 35mMultiple Airlines
Mon 8/1216:55TRS - LTN
1 stop15h 45mMultiple Airlines
Deal found 11/11£121
Mon 24/1107:15LTN - TRS
1 stop8h 15mMultiple Airlines
Sun 30/1119:45TRS - LTN
2 stops25h 10mMultiple Airlines
Deal found 12/11£122
Sat 6/1220:50LTN - TRS
2 stops15h 35mMultiple Airlines
Sun 7/1221:05TRS - LTN
1 stop12h 50mMultiple Airlines
Deal found 11/11£128
Sat 6/1209:20LTN - TRS
1 stop12h 25mRyanair
Sun 7/1221:05TRS - LTN
1 stop15h 40mRyanair
Deal found 12/11£128

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 14 November 2025.

Round-trip from

£79

One-way from

£46

Popular in

December

Cheapest in

November

Average price

£47
7/2-10/2
  • 7/2-10/2
  • 2 total stops
  • 16h 35m total
  • London to Trieste
Search Deals
5/12
  • 5/12
  • 1 total stop
  • 19h 10m total
  • London to Trieste
Search Deals
High demand for flights, 7% potential price rise
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£7 potential savings vs. average return price).
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Average for round-trip flights in November 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 14 November 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

Mon 24/11

07:15-16:30

1 stop8h 15m

Trieste Ronchi dei Legionari

Sun 30/11

21:05-11:45

1 stop15h 40m

£104

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sat 7/2

05:25-12:10

1 stop5h 45m

Trieste Ronchi dei Legionari

Fri 13/2

15:15-20:55

1 stop6h 40m

£109

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sat 7/2

05:25-12:10

1 stop5h 45m

Trieste Ronchi dei Legionari

Thu 12/2

15:15-20:55

1 stop6h 40m

£109

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sun 7/12

08:25-19:20

1 stop9h 55m

Trieste Ronchi dei Legionari

Sun 14/12

19:45-07:40

1 stop12h 55m

£119

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sat 6/12

20:50-13:25

2 stops15h 35m

Trieste Ronchi dei Legionari

Mon 8/12

16:55-07:40

1 stop15h 45m

£121

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Mon 24/11

07:15-16:30

1 stop8h 15m

Trieste Ronchi dei Legionari

Sun 30/11

19:45-19:55

2 stops25h 10m

£122

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Fri 28/11

15:05-10:05

2 stops18h 00m

Trieste Ronchi dei Legionari

Mon 1/12

16:55-07:40

1 stop15h 45m

£122

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Thu 11/12

07:15-14:00

1 stop5h 45m

Trieste Ronchi dei Legionari

Thu 18/12

11:10-22:30

1 stop12h 20m

£125

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sat 6/12

09:20-22:45

1 stop12h 25m

Trieste Ronchi dei Legionari

Sun 7/12

21:05-11:45

1 stop15h 40m

£128

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sat 6/12

20:50-13:25

2 stops15h 35m

Trieste Ronchi dei Legionari

Sun 7/12

21:05-08:55

1 stop12h 50m

£131

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 18 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 £19). Flying from London Luton Airport to Trieste in September is currently the most expensive (average of £81). 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.

  • How long is the flight from London Luton Airport to Trieste?

    Departing from London Luton Airport to Trieste will take you 8h 15m. The distance from London Luton Airport to Trieste is about 754 mi.

  • 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 £19). Flying from London Luton Airport to Trieste in September is currently the most expensive (average of £81). 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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Can Cheapflights find flights from Luton to Trieste with no change fees?

Yes, we can. To see specific flights from Luton to Trieste with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

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