Which airlines fly to Trieste?

United Airlines, Delta, British Airways and Lufthansa are the most popular airlines that fly from United States 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 United States.

Lufthansa Flights to Trieste

Lufthansa is a popular choice for users traveling to Trieste. It operates 11 flights every week to Trieste, most often flying from Rome Fiumicino. Lufthansa ticket prices will depend on when and where you need to fly from - deals as low as $499 (from Boston Logan Intl) have been found by momondo users. In 8,295 reviews, momondo users have rated Lufthansa at an average score of 6.8/10.

ITA Airways Flights to Trieste

ITA Airways flight deals to Trieste start from $481 - this is the best price found recently on momondo, and was a round-trip journey departing from Boston Logan Intl. Over any normal week, ITA Airways flight prices are typically higher, but vary depending on where you fly from - Rome Fiumicino is the most popular ITA Airways departure point to Trieste so generally has the most availability. ITA Airways is scored a 6.8/10 in 1,412 reviews.

How long does it take to fly to Trieste?

Average flight duration from United States to Trieste depends on which airport you fly into and out of. Flying from Los Angeles to Venice Marco Polo is 13h 40m on average, while flying from Miami to Venice Marco Polo is 12h 10m on average. Venice Marco Polo is the most popular airport in Trieste.

$327 Cheap Flights to Trieste in 2026/27

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Find the cheapest flights from the United States to Trieste

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:40 pm - 6:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

19h 50m1 stop Rome Fiumicino

6:35 am - 6:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

18h 20m1 stop Rome Fiumicino

$722ITA Airways

Wed, Feb 24 - Wed, Mar 3

9:05 pm - 10:55 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

19h 50m1 stop Rome Fiumicino

6:35 am - 6:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

18h 20m1 stop Rome Fiumicino

$726ITA Airways

Wed, Feb 24 - Wed, Mar 3

10:00 pm - 6:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

14h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino

6:35 am - 8:05 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

19h 30m2 stops Rome Fiumicino Lisbon Humberto Delgado

$739Multiple Airlines

Wed, Feb 24 - Wed, Mar 3

10:00 pm - 6:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

14h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino

6:35 am - 8:05 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

19h 30m2 stops Rome Fiumicino Lisbon Humberto Delgado

$740TAP AIR PORTUGAL

Tue, Feb 9 - Wed, Mar 10

5:40 pm - 6:30 pmEWR Newark-TRS Trieste Ronchi dei Legionari

18h 50m2 stops Lisbon Humberto Delgado Rome Fiumicino

3:15 pm - 3:20 pmTRS Trieste Ronchi dei Legionari-EWR Newark

30h 05m2 stops Rome Fiumicino Lisbon Humberto Delgado

$740TAP AIR PORTUGAL

Tue, Feb 9 - Wed, Mar 10

9:05 pm - 10:55 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

19h 50m1 stop Rome Fiumicino

7:15 pm - 2:15 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

25h 00m1 stop Rome Fiumicino

$766ITA Airways

Tue, Feb 9 - Wed, Mar 10

10:00 pm - 6:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

14h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino

11:15 am - 8:05 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

38h 50m2 stops Rome Fiumicino Lisbon Humberto Delgado

$770TAP AIR PORTUGAL

Wed, Feb 24 - Wed, Mar 3

5:20 pm - 10:25 amBOS Boston Logan Intl-TRS Trieste Ronchi dei Legionari

11h 05m1 stop Rome Fiumicino

7:15 pm - 1:45 pmTRS Trieste Ronchi dei Legionari-BOS Boston Logan Intl

24h 30m1 stop Rome Fiumicino

$801ITA Airways

Sun, Nov 29 - Sat, Dec 5

12:25 pm - 10:25 amEWR Newark-TRS Trieste Ronchi dei Legionari

16h 00m2 stops Boston Logan Intl Rome Fiumicino

6:35 am - 8:03 pmTRS Trieste Ronchi dei Legionari-EWR Newark

19h 28m2 stops Rome Fiumicino Boston Logan Intl

$827ITA Airways

Wed, Jan 6 - Sun, Jan 10

6:00 pm - 1:45 pmEWR Newark-TRS Trieste Ronchi dei Legionari

13h 45m1 stop Frankfurt am Main

6:20 am - 3:45 pmTRS Trieste Ronchi dei Legionari-EWR Newark

15h 25m1 stop Frankfurt am Main

$938Lufthansa

Wed, Apr 7 - Wed, Apr 21

Cheap last minute flights

Enter your travel dates to find the best prices.

10:00 pm - 10:55 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

18h 55m2 stops Lisbon Humberto Delgado Rome Fiumicino

6:35 am - 8:05 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

19h 30m2 stops Rome Fiumicino Lisbon Humberto Delgado

$770Multiple Airlines

Tue, Nov 17 - Wed, Jan 27

4:40 pm - 2:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

15h 50m1 stop Rome Fiumicino

3:15 pm - 2:15 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

29h 00m1 stop Rome Fiumicino

$772ITA Airways

Tue, Nov 17 - Tue, Nov 24

9:05 pm - 2:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

11h 25m1 stop Rome Fiumicino

3:15 pm - 6:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

33h 40m1 stop Rome Fiumicino

$776ITA Airways

Mon, Nov 16 - Mon, Nov 23

4:40 pm - 6:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

19h 50m1 stop Rome Fiumicino

6:35 am - 6:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

18h 20m1 stop Rome Fiumicino

$780ITA Airways

Tue, Nov 17 - Wed, Jan 27

10:05 pm - 3:45 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

35h 40m2 stops Madrid Barajas Barcelona-El Prat

6:35 am - 2:15 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

13h 40m1 stop Rome Fiumicino

$796Multiple Airlines

Tue, Nov 17 - Wed, Jan 27

4:40 pm - 2:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

15h 50m1 stop Rome Fiumicino

11:15 am - 6:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

13h 40m1 stop Rome Fiumicino

$797ITA Airways

Sat, Nov 21 - Tue, Nov 24

4:40 pm - 10:55 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

24h 15m1 stop Rome Fiumicino

6:35 am - 6:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

18h 20m1 stop Rome Fiumicino

$801ITA Airways

Sat, Nov 21 - Wed, Nov 25

4:40 pm - 10:25 amJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

11h 45m1 stop Rome Fiumicino

11:15 am - 6:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

13h 40m1 stop Rome Fiumicino

$870ITA Airways

Fri, Nov 20 - Tue, Nov 24

10:00 pm - 10:55 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

18h 55m2 stops Lisbon Humberto Delgado Rome Fiumicino

7:15 pm - 7:29 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

30h 14m3 stops Rome Fiumicino Paris Charles de Gaulle Dublin

$921Multiple Airlines

Tue, Nov 17 - Wed, Jan 27

4:40 pm - 2:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

15h 50m1 stop Rome Fiumicino

7:15 pm - 6:45 amTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

41h 30m2 stops Rome Fiumicino Boston Logan Intl

$971Multiple Airlines

Sat, Nov 21 - Tue, Nov 24

Fly from

Route

Depart

Return

Price

Cheapest round-trip

New YorkTrieste

JFK New York John F Kennedy Intl - TRS Trieste Ronchi dei Legionari

JFKTRS

New York John F Kennedy Intl

Wed 2/24

4:40 pm-6:30 pm

1 stop19h 50m

Trieste Ronchi dei Legionari

Wed 3/3

6:35 am-6:55 pm

1 stop18h 20m

$722

New YorkTrieste

JFK New York John F Kennedy Intl - TRS Trieste Ronchi dei Legionari

JFKTRS

New York John F Kennedy Intl

Wed 2/24

9:05 pm-10:55 pm

1 stop19h 50m

Trieste Ronchi dei Legionari

Wed 3/3

6:35 am-6:55 pm

1 stop18h 20m

$726

New YorkTrieste

JFK New York John F Kennedy Intl - TRS Trieste Ronchi dei Legionari

JFKTRS

New York John F Kennedy Intl

Wed 2/24

10:00 pm-6:30 pm

2 stops14h 30m

Trieste Ronchi dei Legionari

Wed 3/3

6:35 am-8:05 pm

2 stops19h 30m

$739

New YorkTrieste

JFK New York John F Kennedy Intl - TRS Trieste Ronchi dei Legionari

JFKTRS

New York John F Kennedy Intl

Tue 2/9

10:00 pm-6:30 pm

2 stops14h 30m

Trieste Ronchi dei Legionari

Wed 3/10

6:35 am-8:05 pm

2 stops19h 30m

$740

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Tue 2/9

5:40 pm-6:30 pm

2 stops18h 50m

Trieste Ronchi dei Legionari

Wed 3/10

3:15 pm-3:20 pm

2 stops30h 05m

$740

New YorkTrieste

JFK New York John F Kennedy Intl - TRS Trieste Ronchi dei Legionari

JFKTRS

New York John F Kennedy Intl

Tue 2/9

9:05 pm-10:55 pm

1 stop19h 50m

Trieste Ronchi dei Legionari

Wed 3/10

7:15 pm-2:15 pm

1 stop25h 00m

$766

New YorkTrieste

JFK New York John F Kennedy Intl - TRS Trieste Ronchi dei Legionari

JFKTRS

New York John F Kennedy Intl

Wed 2/24

10:00 pm-6:30 pm

2 stops14h 30m

Trieste Ronchi dei Legionari

Wed 3/3

11:15 am-8:05 pm

2 stops38h 50m

$770

BostonTrieste

BOS Boston Logan Intl - TRS Trieste Ronchi dei Legionari

BOSTRS

Boston Logan Intl

Sun 11/29

5:20 pm-10:25 am

1 stop11h 05m

Trieste Ronchi dei Legionari

Sat 12/5

7:15 pm-1:45 pm

1 stop24h 30m

$801

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Wed 1/6

12:25 pm-10:25 am

2 stops16h 00m

Trieste Ronchi dei Legionari

Sun 1/10

6:35 am-8:03 pm

2 stops19h 28m

$827

Quickest round-trip

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Wed 4/7

6:00 pm-1:45 pm

1 stop13h 45m

Trieste Ronchi dei Legionari

Wed 4/21

6:20 am-3:45 pm

1 stop15h 25m

$938

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Trieste flights insights and trends

Explore insights for your Trieste flight to craft the best travel plan

Prices

Other information

What is the cheapest month to fly to Trieste?

The cheapest month to fly to Trieste from United States is in February. Flight prices, which tend to average around $569, are often lower during this time because this is during the off-season. If you don’t want to visit Trieste in February, then you should wait until March to fly from United States, when ticket prices are also cheap, with an average price of $670.

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 Los Angeles to Venice Marco Polo Airport

Cheap Trieste flight deals and tips

Summary info about Trieste flight prices, duration and airlines

Best One-Way Price	$327
Best Round-Trip Price	$722
Fastest flight time	14h 15m

The best one-way flight price to Trieste from United States in the last 5 days is $327 (Washington, D.C. Dulles Intl to Trieste Ronchi dei Legionari).

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The best round-trip flight price to Trieste from United States in the last 5 days is $722 (New York John F Kennedy Intl to Trieste Ronchi dei Legionari).

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The fastest flight to Trieste from United States takes 14h 15m (Los Angeles to Trieste Ronchi dei Legionari).

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Frequently asked questions about flying to Trieste

Is there an alternative airport near Trieste?

Those flying to Trieste could potentially find better pricing at Trieste Ronchi dei Legionari Airport (18 mi from Trieste city center) or Venice Treviso A. Canova Airport (76 mi from Trieste city center) depending on the month and departure airport.

Is there a cheaper alternative to flying into Trieste?

You can find deals at Venice Treviso A. Canova Airport for $108 on average, but that price can change based on your departure airport. To save money, try momondo’s Airport-to-Airport Pricing Tool.

What is the absolute cheapest flight to Trieste?

In the past two weeks, users have booked deals to Trieste for $31/person, which is 84% cheaper than the average flight 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 are refreshed on a daily basis.

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

There are 5 operators available for flights to Trieste Ronchi dei Legionari Airport as of November 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify 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 required for your trip to Trieste Ronchi dei Legionari Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Trieste Ronchi dei Legionari Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Trieste.

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

Yes. momondo allows you to filter the results for flights to Trieste to just show those with flexible booking policies.

How can momondo help me find flights to Trieste?

Once you have performed a search for flights to Trieste, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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Price alerts on flights to Trieste are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.