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 10 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 8,228 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 - Frankfurt am Main is the most popular ITA Airways departure point to Trieste so generally has the most availability. ITA Airways is scored a 6.7/10 in 1,329 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 14h 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.

$201 Cheap Flights to Trieste in 2026

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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.

12:30 am - 1:25 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

31h 55m2 stops Rome Fiumicino Bari Palese

6:35 am - 3:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

15h 20m1 stop Rome Fiumicino

$632Multiple Airlines

Sat, Oct 24 - Mon, Nov 2

8:30 pm - 11:15 amMCO Orlando-TRS Trieste Ronchi dei Legionari

32h 45m2 stops London Gatwick Dublin

6:00 am - 6:15 pmTRS Trieste Ronchi dei Legionari-MCO Orlando

17h 15m1 stop London Stansted

$643Multiple Airlines

Sat, Oct 24 - Fri, Oct 30

7:05 pm - 10:25 amJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

10h 20m1 stop Rome Fiumicino

6:35 am - 3:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

15h 20m1 stop Rome Fiumicino

$673Multiple Airlines

Sun, Oct 25 - Mon, Nov 2

9:15 pm - 4:00 pmBOS Boston Logan Intl-TRS Trieste Ronchi dei Legionari

12h 45m1 stop Dublin

6:45 am - 9:05 pmTRS Trieste Ronchi dei Legionari-BOS Boston Logan Intl

20h 20m2 stops Palermo Punta Raisi Barcelona-El Prat

$679Multiple Airlines

Wed, Oct 14 - Wed, Oct 21

10:05 pm - 6:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

15h 25m1 stop Rome Fiumicino

11:15 am - 2:15 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

33h 00m1 stop Rome Fiumicino

$700ITA Airways

Mon, Oct 26 - Wed, Nov 4

4:30 pm - 6:30 pmMIA Miami-TRS Trieste Ronchi dei Legionari

20h 00m1 stop Rome Fiumicino

3:15 pm - 4:00 pmTRS Trieste Ronchi dei Legionari-MIA Miami

30h 45m1 stop Rome Fiumicino

$762ITA Airways

Tue, Oct 13 - Thu, Oct 22

3:20 pm - 10:55 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

22h 35m1 stop Rome Fiumicino

6:35 am - 1:30 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

15h 55m1 stop Rome Fiumicino

$764ITA Airways

Mon, Jan 11 - Wed, Jan 27

11:26 am - 1:45 pmMIA Miami-TRS Trieste Ronchi dei Legionari

20h 19m2 stops Newark Frankfurt am Main

6:20 am - 2:40 pmTRS Trieste Ronchi dei Legionari-MIA Miami

14h 20m1 stop Frankfurt am Main

$832Lufthansa

Tue, Sep 15 - Tue, Oct 13

4:40 pm - 1:55 pmMIA Miami-TRS Trieste Ronchi dei Legionari

15h 15m1 stop Frankfurt am Main

6:20 am - 6:52 pmTRS Trieste Ronchi dei Legionari-MIA Miami

42h 32m2 stops Frankfurt am Main Newark

$861Lufthansa

Mon, Oct 5 - Tue, Oct 20

4:40 pm - 1:45 pmMIA Miami-TRS Trieste Ronchi dei Legionari

15h 05m1 stop Frankfurt am Main

6:20 am - 6:52 pmTRS Trieste Ronchi dei Legionari-MIA Miami

42h 32m2 stops Frankfurt am Main Newark

$861Lufthansa

Tue, Oct 6 - Tue, Oct 20

Cheap last minute flights

Enter your travel dates to find the best prices.

12:30 am - 2:25 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

31h 55m2 stops Rome Fiumicino Krakow J. Paul II Balice

7:10 pm - 3:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

26h 45m1 stop London Stansted

$841Multiple Airlines

Mon, Aug 31 - Thu, Sep 24

6:20 pm - 8:15 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

19h 55m1 stop London Gatwick

7:10 pm - 3:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

26h 45m1 stop London Stansted

$862Multiple Airlines

Tue, Sep 1 - Thu, Sep 24

5:35 pm - 8:15 pmEWR Newark-TRS Trieste Ronchi dei Legionari

20h 40m2 stops Dublin London Heathrow

10:30 am - 9:00 pmTRS Trieste Ronchi dei Legionari-EWR Newark

16h 30m2 stops Barcelona-El Prat Lisbon Humberto Delgado

$976Multiple Airlines

Tue, Sep 1 - Thu, Sep 24

10:50 am - 2:25 pmLGA New York LaGuardia-TRS Trieste Ronchi dei Legionari

21h 35m3 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main Krakow J. Paul II Balice

10:30 am - 9:30 pmTRS Trieste Ronchi dei Legionari-LGA New York LaGuardia

17h 00m2 stops Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl

$977Multiple Airlines

Tue, Sep 1 - Thu, Sep 24

7:45 pm - 6:30 pmMIA Miami-TRS Trieste Ronchi dei Legionari

16h 45m1 stop Rome Fiumicino

7:15 pm - 4:00 pmTRS Trieste Ronchi dei Legionari-MIA Miami

26h 45m1 stop Rome Fiumicino

$1,331ITA Airways

Fri, Sep 4 - Mon, Sep 14

7:45 pm - 10:55 pmMIA Miami-TRS Trieste Ronchi dei Legionari

21h 10m1 stop Rome Fiumicino

6:35 am - 4:00 pmTRS Trieste Ronchi dei Legionari-MIA Miami

15h 25m1 stop Rome Fiumicino

$1,331ITA Airways

Fri, Sep 4 - Tue, Sep 15

7:45 pm - 6:30 pmMIA Miami-TRS Trieste Ronchi dei Legionari

16h 45m1 stop Rome Fiumicino

7:15 pm - 4:05 pmTRS Trieste Ronchi dei Legionari-MIA Miami

26h 50m1 stop Rome Fiumicino

$1,331ITA Airways

Fri, Sep 4 - Thu, Sep 17

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

13h 45m1 stop Frankfurt am Main

3:15 pm - 2:45 pmTRS Trieste Ronchi dei Legionari-EWR Newark

29h 30m1 stop Rome Fiumicino

$1,664Lufthansa

Tue, Sep 1 - Thu, Sep 24

6:00 pm - 1:55 pmEWR Newark-TRS Trieste Ronchi dei Legionari

13h 55m1 stop Frankfurt am Main

3:15 pm - 2:45 pmTRS Trieste Ronchi dei Legionari-EWR Newark

29h 30m1 stop Rome Fiumicino

$1,868Lufthansa

Fri, Sep 4 - Sat, Sep 12

6:00 pm - 1:55 pmEWR Newark-TRS Trieste Ronchi dei Legionari

13h 55m1 stop Frankfurt am Main

3:15 pm - 4:55 pmTRS Trieste Ronchi dei Legionari-EWR Newark

31h 40m1 stop Rome Fiumicino

$1,868Lufthansa

Fri, Sep 4 - Sun, Sep 13

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

Sat 10/24

12:30 am-1:25 pm

2 stops31h 55m

Trieste Ronchi dei Legionari

Mon 11/2

6:35 am-3:55 pm

1 stop15h 20m

$632

OrlandoTrieste

MCO Orlando - TRS Trieste Ronchi dei Legionari

MCOTRS

Orlando

Sat 10/24

8:30 pm-11:15 am

2 stops32h 45m

Trieste Ronchi dei Legionari

Fri 10/30

6:00 am-6:15 pm

1 stop17h 15m

$643

Quickest round-trip

New YorkTrieste

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

JFKTRS

New York John F Kennedy Intl

Sun 10/25

7:05 pm-10:25 am

1 stop10h 20m

Trieste Ronchi dei Legionari

Mon 11/2

6:35 am-3:55 pm

1 stop15h 20m

$673

BostonTrieste

BOS Boston Logan Intl - TRS Trieste Ronchi dei Legionari

BOSTRS

Boston Logan Intl

Wed 10/14

9:15 pm-4:00 pm

1 stop12h 45m

Trieste Ronchi dei Legionari

Wed 10/21

6:45 am-9:05 pm

2 stops20h 20m

$679

New YorkTrieste

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

JFKTRS

New York John F Kennedy Intl

Mon 10/26

10:05 pm-6:30 pm

1 stop15h 25m

Trieste Ronchi dei Legionari

Wed 11/4

11:15 am-2:15 pm

1 stop33h 00m

$700

MiamiTrieste

MIA Miami - TRS Trieste Ronchi dei Legionari

MIATRS

Miami

Tue 10/13

4:30 pm-6:30 pm

1 stop20h 00m

Trieste Ronchi dei Legionari

Thu 10/22

3:15 pm-4:00 pm

1 stop30h 45m

$762

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Mon 1/11

3:20 pm-10:55 pm

1 stop22h 35m

Trieste Ronchi dei Legionari

Wed 1/27

6:35 am-1:30 pm

1 stop15h 55m

$764

MiamiTrieste

MIA Miami - TRS Trieste Ronchi dei Legionari

MIATRS

Miami

Tue 9/15

11:26 am-1:45 pm

2 stops20h 19m

Trieste Ronchi dei Legionari

Tue 10/13

6:20 am-2:40 pm

1 stop14h 20m

$832

MiamiTrieste

MIA Miami - TRS Trieste Ronchi dei Legionari

MIATRS

Miami

Mon 10/5

4:40 pm-1:55 pm

1 stop15h 15m

Trieste Ronchi dei Legionari

Tue 10/20

6:20 am-6:52 pm

2 stops42h 32m

$861

MiamiTrieste

MIA Miami - TRS Trieste Ronchi dei Legionari

MIATRS

Miami

Tue 10/6

4:40 pm-1:45 pm

1 stop15h 05m

Trieste Ronchi dei Legionari

Tue 10/20

6:20 am-6:52 pm

2 stops42h 32m

$861

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 $551, 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 October to fly from United States, when ticket prices are also cheap, with an average price of $627.

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	$201
Best Round-Trip Price	$632
Fastest flight time	14h 00m

The best one-way flight price to Trieste from United States in the last 5 days is $201 (Newark 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 $632 (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 00m (Newark 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 $111 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 $24/person, which is 80% 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 September 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 use momondo?

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.

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

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.