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Cheap flights from London Luton Airport to Trieste from £34

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — TRS
10 May — 17 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 10 April 2026.

Sun 7/621:50
LTN
-
TRS
1 stop10h 05m
Multiple Airlines
Wed 17/615:15
TRS
-
LTN
1 stop11h 40m
Multiple Airlines
Deal found 9/4£67
Sun 26/419:50
LTN
-
TRS
1 stop12h 05m
Multiple Airlines
Wed 29/415:15
TRS
-
LTN
1 stop12h 45m
Multiple Airlines
Deal found 6/4£73
Tue 21/415:45
LTN
-
TRS
1 stop6h 50m
Multiple Airlines
Wed 22/414:50
TRS
-
LTN
1 stop9h 55m
Multiple Airlines
Deal found 8/4£78
Mon 20/409:00
LTN
-
TRS
1 stop13h 05m
Multiple Airlines
Mon 27/411:25
TRS
-
LTN
1 stop16h 35m
Multiple Airlines
Deal found 5/4£78
Thu 23/405:40
LTN
-
TRS
1 stop8h 20m
Multiple Airlines
Mon 27/411:25
TRS
-
LTN
1 stop16h 35m
Multiple Airlines
Deal found 6/4£84
Sun 3/521:50
LTN
-
TRS
1 stop16h 10m
Multiple Airlines
Wed 6/514:50
TRS
-
LTN
1 stop9h 55m
Multiple Airlines
Deal found 5/4£86
Mon 27/406:55
LTN
-
TRS
1 stop7h 05m
Multiple Airlines
Tue 5/510:30
TRS
-
LTN
2 stops25h 55m
Multiple Airlines
Deal found 5/4£88
Sat 9/520:35
LTN
-
TRS
2 stops22h 25m
Multiple Airlines
Thu 14/506:30
TRS
-
LTN
1 stop15h 55m
Multiple Airlines
Deal found 9/4£89
Sun 19/406:00
LTN
-
TRS
1 stop8h 50m
Multiple Airlines
Tue 21/419:05
TRS
-
LTN
2 stops26h 05m
Multiple Airlines
Deal found 8/4£90
Sat 9/520:35
LTN
-
TRS
2 stops22h 25m
Multiple Airlines
Mon 11/511:25
TRS
-
LTN
1 stop16h 30m
Multiple Airlines
Deal found 6/4£92

Find 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 10 April 2026.

Round-trip from

£67

One-way from

£34

Popular in

August

Cheapest in

November

Average price

£112
7/6-17/6
  • 7/6-17/6
  • 2 total stops
  • 21h 45m total
  • London to Trieste
Search Deals
14/5
  • 14/5
  • 1 total stop
  • 10h 05m total
  • London to Trieste
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£26 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 10 April 2026.
Use the filters below to find and compare flights from London Luton Airport to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Mon 20/4

09:00-23:05

1 stop13h 05m

Trieste Ronchi dei Legionari

Mon 27/4

11:25-03:00

1 stop16h 35m

£78
Fastest return journey

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Tue 12/5

14:30-07:15

2 stops15h 45m

Trieste Ronchi dei Legionari

Fri 15/5

15:45-00:50

1 stop10h 05m

£90

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Wed 20/5

16:05-10:05

2 stops17h 00m

Trieste Ronchi dei Legionari

Wed 27/5

15:15-04:55

1 stop14h 40m

£104

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sun 19/4

19:05-08:55

1 stop12h 50m

Trieste Ronchi dei Legionari

Sat 25/4

16:25-07:45

2 stops16h 20m

£119

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sun 7/6

21:50-08:55

1 stop10h 05m

Trieste Ronchi dei Legionari

Sun 14/6

06:05-04:55

2 stops23h 50m

£129

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Fri 12/6

15:15-10:05

2 stops17h 50m

Trieste Ronchi dei Legionari

Sun 14/6

19:45-22:50

2 stops28h 05m

£131

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Sat 20/6

07:20-23:30

1 stop15h 10m

Trieste Ronchi dei Legionari

Tue 23/6

19:30-18:05

2 stops23h 35m

£139

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Thu 28/5

05:40-15:00

1 stop8h 20m

Trieste Ronchi dei Legionari

Sun 31/5

17:00-11:25

2 stops19h 25m

£139
Cheapest one-way

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Wed 22/4

19:50-10:05

1 stop13h 15m

£40

LondonTrieste

LTN - TRS

LTNTRS

London Luton

Fri 15/5

19:40-08:05

1 stop11h 25m

£48

Flights are sorted by cheapest return flights first.

Deals found on 8/4

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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, November is the cheapest month in which you can book a flight from London Luton Airport to Trieste (average of £28). Flying from London Luton Airport to Trieste in August is currently the most expensive (average of £77). 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, November is the cheapest month in which you can book a flight from London Luton Airport to Trieste (average of £28). Flying from London Luton Airport to Trieste in August is currently the most expensive (average of £77). 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.

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Of course! You can now track prices for flights from Luton to Trieste and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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