Which airlines fly to Trieste?

Aer Lingus, Lufthansa and KLM are the most popular airlines that fly from Ireland to Trieste on a routine basis, according to our data. You should be able to find flights to Trieste with these airlines and other airlines flying from Ireland.

Lufthansa Flights to Trieste

19 Lufthansa flights head to Trieste on average each week. Most will be flying from Rome Fiumicino to Trieste, the most popular route that Lufthansa operates to Trieste. Prices vary based on when and where you fly from - the cheapest Lufthansa flight to Trieste found in the past 3 days on momondo was €162, departing from Dublin. Lufthansa is the most popular choice on momondo for this route and has been scored 6.8/10 by 7,409 of our users.

How long does it take to fly to Trieste?

If you’re flying from a popular airport in Ireland, such as Dublin or Cork, and flying into Trieste, then you can expect flight times to average 2h 35m and 2h 40m, respectively.

€22 Cheap Flights to Trieste in 2025/26

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Find the cheapest flights from Ireland to Trieste

Round-trip

One-way

Direct

Cheap return flights

07:50 - 11:30DUB-TRS

2h 40mdirect

12:20 - 14:10TRS-DUB

2h 50mdirect

€46Ryanair

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Sat, 11 Oct - Sat, 18 Oct

07:50 - 11:30DUB-TRS

2h 40mdirect

06:00 - 12:25TRS-DUB

7h 25m1 stop

€102Ryanair

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Sat, 11 Oct - Sat, 18 Oct

07:50 - 11:30DUB-TRS

2h 40mdirect

19:20 - 11:10TRS-DUB

16h 50m2 stops

€112

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Sat, 11 Oct - Sat, 18 Oct

06:30 - 16:30DUB-TRS

9h 00m1 stop

19:20 - 11:10TRS-DUB

16h 50m2 stops

€147

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Sat, 11 Oct - Sat, 18 Oct

09:45 - 20:30DUB-TRS

9h 45m1 stop

11:10 - 20:15TRS-DUB

10h 05m1 stop

€148Ryanair

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Mon, 10 Nov - Thu, 13 Nov

11:45 - 22:40DUB-TRS

9h 55m1 stop

14:40 - 22:45TRS-DUB

9h 05m1 stop

€153Lufthansa

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Wed, 29 Oct - Wed, 5 Nov

05:55 - 22:25DUB-TRS

15h 30m1 stop

06:30 - 16:55TRS-DUB

11h 25m1 stop

€226Lufthansa

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Sat, 4 Oct - Tue, 7 Oct

05:55 - 22:55DUB-TRS

16h 00m2 stops

19:15 - 22:15TRS-DUB

28h 00m2 stops

€274ITA Airways

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Mon, 13 Oct - Mon, 20 Oct

05:55 - 14:30DUB-TRS

7h 35m2 stops

15:15 - 22:10TRS-DUB

7h 55m2 stops

€279KLM

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Mon, 10 Nov - Thu, 13 Nov

05:10 - 22:55DUB-TRS

16h 45m2 stops

19:15 - 12:30TRS-DUB

18h 15m2 stops

€339ITA Airways

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Fri, 7 Nov - Sun, 9 Nov

Fly from

Route

Depart

Return

Price

DublinTrieste

DUB - TRS

DUBTRS

Dublin

Sat 11/10

07:50-11:30

Nonstop2h 40m

Trieste Ronchi dei Legionari

Sat 18/10

12:20-14:10

Nonstop2h 50m

€46

DublinTrieste

DUB - TRS

DUBTRS

Dublin

Sat 11/10

07:50-11:30

Nonstop2h 40m

Trieste Ronchi dei Legionari

Sat 18/10

06:00-12:25

1 stop7h 25m

€102

DublinTrieste

DUB - TRS

DUBTRS

Dublin

Sat 11/10

07:50-11:30

Nonstop2h 40m

Trieste Ronchi dei Legionari

Sat 18/10

19:20-11:10

2 stops16h 50m

€112

DublinTrieste

DUB - TRS

DUBTRS

Dublin

Sat 11/10

06:30-16:30

1 stop9h 00m

Trieste Ronchi dei Legionari

Sat 18/10

19:20-11:10

2 stops16h 50m

€147

DublinTrieste

DUB - TRS

DUBTRS

Dublin

Mon 10/11

09:45-20:30

1 stop9h 45m

Trieste Ronchi dei Legionari

Thu 13/11

11:10-20:15

1 stop10h 05m

€148

DublinTrieste

DUB - TRS

DUBTRS

Dublin

Wed 29/10

11:45-22:40

1 stop9h 55m

Trieste Ronchi dei Legionari

Wed 5/11

14:40-22:45

1 stop9h 05m

€153

DublinTrieste

DUB - TRS

DUBTRS

Dublin

Sat 4/10

05:55-22:25

1 stop15h 30m

Trieste Ronchi dei Legionari

Tue 7/10

06:30-16:55

1 stop11h 25m

€226

DublinTrieste

DUB - TRS

DUBTRS

Dublin

Mon 13/10

05:55-22:55

2 stops16h 00m

Trieste Ronchi dei Legionari

Mon 20/10

19:15-22:15

2 stops28h 00m

€274

DublinTrieste

DUB - TRS

DUBTRS

Dublin

Mon 10/11

05:55-14:30

2 stops7h 35m

Trieste Ronchi dei Legionari

Thu 13/11

15:15-22:10

2 stops7h 55m

€279

DublinTrieste

DUB - TRS

DUBTRS

Dublin

Fri 7/11

05:10-22:55

2 stops16h 45m

Trieste Ronchi dei Legionari

Sun 9/11

19:15-12:30

2 stops18h 15m

€339

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Trieste flights insights and trends

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Prices

Other information

What is the cheapest day to depart on your flight to Trieste?

The cheapest day to depart on your flight to Trieste is on a Tuesday when prices can be found for as low as €273. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €353.

Cheapest flights to Trieste Ronchi dei Legionari

Find the cheapest flights to Trieste Ronchi dei Legionari from your nearest city or airport

Find flights from Dublin to Trieste

CHEAPEST MONTH TO FLY TO TRIESTE FROM DUBLIN	February	41% cheaper	Flying from Dublin to Trieste costs on average just €116 in February
MOST EXPENSIVE MONTH TO FLY TO TRIESTE FROM DUBLIN	June	73% more expensive	It costs about €340 for flights to Trieste from Dublin in June
MOST POPULAR MONTH TO FLY TO TRIESTE FROM DUBLIN	June	700% more users visited	More momondo users searched in flights to Trieste from Dublin in June than any other month

Cheap Trieste flight deals and tips

Summary info about Trieste flight prices, duration and airlines

Best One-Way Price	€22
Best Round-Trip Price	€46
Fastest flight time	2h 40m
Popular in	June

The best one-way flight price to Trieste from Ireland in the last 72 hours is €22 (Dublin to Trieste Ronchi dei Legionari).

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The best round-trip flight price to Trieste from Ireland in the last 72 hours is €46 (Dublin to Trieste Ronchi dei Legionari).

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The fastest flight to Trieste from Ireland takes 2h 40m (Dublin to Trieste Ronchi dei Legionari).

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June has the highest demand for flights to Trieste, with a 17% price increase on average.

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Frequently asked questions about flying to Trieste

What is the cheapest month to fly to Trieste?

The month of January is another great option to travel to Trieste, with average flight prices from Ireland averaging around €125.

Is there an alternative airport near Trieste?

Finding an alternative and possibly cheaper destination airport near Trieste is possible. If you are planning a flight to Trieste, consider booking flights to Trieste Ronchi dei Legionari Airport (29 km from Trieste city centre) or Venice Treviso A. Canova Airport (122 km from Trieste city centre).

Is there a cheaper alternative to flying into Trieste?

Venice Treviso A. Canova Airport has an average price of €169 per person and is typically the cheapest airport to fly into when visiting Trieste. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

What is the absolute cheapest flight to Trieste?

€66 is the cheapest deal found on momondo in the last two weeks for a flight to Trieste. This flight is from Madrid and is 61% cheaper than most flights to Trieste. To find the cheapest price to Trieste from your area, use momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to Trieste Ronchi dei Legionari Airport?

Prices for flights to Trieste Ronchi dei Legionari Airport were last updated today.

How many operators does momondo search for flights to Trieste Ronchi dei Legionari Airport?

As of September 2025, there is 1 operator available to choose from for flights to Trieste Ronchi dei Legionari Airport.

How old do you have to be to fly to Trieste Ronchi dei Legionari Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Trieste Ronchi dei Legionari Airport.

What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?

The travel and health documents you'll need for your trip to Trieste Ronchi dei Legionari Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Trieste Ronchi dei Legionari Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Why should I use momondo to find a flight deal to Trieste?

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Can I find flights to Trieste with flexible booking policies on momondo?

momondo does allow users to show only those flights to Trieste which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights to Trieste?

momondo provides multiple filters to help you find the best flight to Trieste. Filter by price, airline, airport, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight to Trieste right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Trieste. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.