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 12 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 8,231 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 1,355 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.

$306 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.

5:20 pm - 2:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

15h 10m1 stop Rome Fiumicino

3:15 pm - 4:50 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

31h 35m1 stop Rome Fiumicino

$556KLM

Sun, Nov 8 - Tue, Nov 17

5:20 pm - 6:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

19h 10m1 stop Rome Fiumicino

6:35 am - 3:50 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

15h 15m1 stop Rome Fiumicino

$559KLM

Sun, Nov 8 - Tue, Nov 17

5:20 pm - 2:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

15h 10m1 stop Rome Fiumicino

6:35 am - 6:43 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

18h 08m2 stops Rome Fiumicino Boston Logan Intl

$562KLM

Sun, Nov 8 - Tue, Nov 17

2:55 pm - 2:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

17h 35m2 stops Atlanta Hartsfield-Jackson Rome Fiumicino

6:35 am - 4:48 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

16h 13m1 stop Rome Fiumicino

$568KLM

Tue, Feb 23 - Tue, Mar 2

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

21h 10m1 stop Rome Fiumicino

6:35 am - 4:15 pmTRS Trieste Ronchi dei Legionari-MIA Miami

15h 40m1 stop Rome Fiumicino

$658ITA Airways

Sun, Jan 31 - Sun, Feb 7

11:15 pm - 6:30 pmMIA Miami-TRS Trieste Ronchi dei Legionari

13h 15m1 stop Rome Fiumicino

6:35 am - 4:15 pmTRS Trieste Ronchi dei Legionari-MIA Miami

15h 40m1 stop Rome Fiumicino

$708ITA Airways

Thu, Jan 14 - Mon, Jan 18

3:20 pm - 10:25 amLAX Los Angeles-TRS Trieste Ronchi dei Legionari

34h 05m1 stop Rome Fiumicino

7:15 pm - 1:30 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

27h 15m1 stop Rome Fiumicino

$724ITA Airways

Sun, Nov 8 - Mon, Nov 16

6:40 pm - 10:25 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

18h 45m1 stop Frankfurt am Main

6:10 am - 4:20 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

19h 10m1 stop Frankfurt am Main

$867Lufthansa

Wed, Oct 14 - Wed, Oct 21

6:40 pm - 10:25 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

18h 45m1 stop Frankfurt am Main

6:20 am - 5:37 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

20h 17m2 stops Frankfurt am Main Chicago O'Hare Intl

$877Lufthansa

Wed, Oct 14 - Tue, Oct 20

5:30 pm - 10:15 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

19h 45m2 stops Munich Franz Josef Strauss Frankfurt am Main

6:10 am - 4:20 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

19h 10m1 stop Frankfurt am Main

$887Lufthansa

Tue, Oct 13 - Wed, Oct 21

Cheap last minute flights

Enter your travel dates to find the best prices.

2:35 pm - 3:00 pmEWR Newark-TRS Trieste Ronchi dei Legionari

18h 25m2 stops Toronto Pearson Intl Barcelona-El Prat

7:15 pm - 7:50 pmTRS Trieste Ronchi dei Legionari-EWR Newark

30h 35m3 stops Rome Fiumicino Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl

$843Multiple Airlines

Wed, Sep 23 - Mon, Sep 28

4:30 pm - 10:25 amEWR Newark-TRS Trieste Ronchi dei Legionari

35h 55m3 stops Toronto Pearson Intl Barcelona-El Prat Rome Fiumicino

3:15 pm - 5:59 pmTRS Trieste Ronchi dei Legionari-EWR Newark

32h 44m3 stops Rome Fiumicino Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl

$898Multiple Airlines

Wed, Sep 23 - Mon, Sep 28

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

$916ITA Airways

Wed, Sep 23 - Wed, Oct 7

3:15 pm - 10:55 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

22h 40m1 stop Rome Fiumicino

7:15 pm - 1:15 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

27h 00m1 stop Rome Fiumicino

$919ITA Airways

Wed, Sep 23 - Mon, Sep 28

1:10 pm - 3:00 pmMIA Miami-TRS Trieste Ronchi dei Legionari

19h 50m2 stops Toronto Pearson Intl Barcelona-El Prat

7:15 pm - 5:25 pmTRS Trieste Ronchi dei Legionari-MIA Miami

28h 10m3 stops Rome Fiumicino Barcelona-El Prat Zurich

$977Multiple Airlines

Wed, Sep 23 - Wed, Oct 7

10:40 am - 3:00 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

19h 20m2 stops Toronto Pearson Intl Barcelona-El Prat

7:15 pm - 8:55 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

34h 40m3 stops Rome Fiumicino Barcelona-El Prat Toronto Pearson Intl

$1,014Multiple Airlines

Wed, Sep 23 - Mon, Sep 28

1:10 pm - 10:55 pmMIA Miami-TRS Trieste Ronchi dei Legionari

27h 45m3 stops Toronto Pearson Intl Barcelona-El Prat Rome Fiumicino

3:25 pm - 5:25 pmTRS Trieste Ronchi dei Legionari-MIA Miami

32h 00m3 stops Rome Fiumicino Barcelona-El Prat Zurich

$1,043Multiple Airlines

Wed, Sep 23 - Wed, Oct 7

9:10 pm - 2:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

11h 20m1 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

$1,065ITA Airways

Sun, Sep 20 - Fri, Sep 25

6:00 pm - 10:25 pmEWR Newark-TRS Trieste Ronchi dei Legionari

22h 25m1 stop Frankfurt am Main

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

29h 30m1 stop Rome Fiumicino

$1,907Lufthansa

Wed, Sep 23 - Mon, Sep 28

5:55 pm - 1:55 pmIAD Washington, D.C. Dulles Intl-TRS Trieste Ronchi dei Legionari

14h 00m1 stop Frankfurt am Main

6:10 am - 1:35 pmTRS Trieste Ronchi dei Legionari-IAD Washington, D.C. Dulles Intl

13h 25m1 stop Frankfurt am Main

$2,697Lufthansa

Fri, Sep 18 - Mon, Sep 28

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

Sun 11/8

5:20 pm-2:30 pm

1 stop15h 10m

Trieste Ronchi dei Legionari

Tue 11/17

3:15 pm-4:50 pm

1 stop31h 35m

$556

New YorkTrieste

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

JFKTRS

New York John F Kennedy Intl

Sun 11/8

5:20 pm-6:30 pm

1 stop19h 10m

Trieste Ronchi dei Legionari

Tue 11/17

6:35 am-3:50 pm

1 stop15h 15m

$559

New YorkTrieste

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

JFKTRS

New York John F Kennedy Intl

Sun 11/8

5:20 pm-2:30 pm

1 stop15h 10m

Trieste Ronchi dei Legionari

Tue 11/17

6:35 am-6:43 pm

2 stops18h 08m

$562

New YorkTrieste

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

JFKTRS

New York John F Kennedy Intl

Tue 2/23

2:55 pm-2:30 pm

2 stops17h 35m

Trieste Ronchi dei Legionari

Tue 3/2

6:35 am-4:48 pm

1 stop16h 13m

$568

MiamiTrieste

MIA Miami - TRS Trieste Ronchi dei Legionari

MIATRS

Miami

Sun 1/31

7:45 pm-10:55 pm

1 stop21h 10m

Trieste Ronchi dei Legionari

Sun 2/7

6:35 am-4:15 pm

1 stop15h 40m

$658

Quickest round-trip

MiamiTrieste

MIA Miami - TRS Trieste Ronchi dei Legionari

MIATRS

Miami

Thu 1/14

11:15 pm-6:30 pm

1 stop13h 15m

Trieste Ronchi dei Legionari

Mon 1/18

6:35 am-4:15 pm

1 stop15h 40m

$708

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Sun 11/8

3:20 pm-10:25 am

1 stop34h 05m

Trieste Ronchi dei Legionari

Mon 11/16

7:15 pm-1:30 pm

1 stop27h 15m

$724

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Wed 10/14

6:40 pm-10:25 pm

1 stop18h 45m

Trieste Ronchi dei Legionari

Wed 10/21

6:10 am-4:20 pm

1 stop19h 10m

$867

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Wed 10/14

6:40 pm-10:25 pm

1 stop18h 45m

Trieste Ronchi dei Legionari

Tue 10/20

6:20 am-5:37 pm

2 stops20h 17m

$877

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Tue 10/13

5:30 pm-10:15 pm

2 stops19h 45m

Trieste Ronchi dei Legionari

Wed 10/21

6:10 am-4:20 pm

1 stop19h 10m

$887

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 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	$306
Best Round-Trip Price	$556
Fastest flight time	12h 10m

The best one-way flight price to Trieste from United States in the last 5 days is $306 (New York John F Kennedy 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 $556 (New York John F Kennedy Intl to Trieste Ronchi dei Legionari).

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The fastest flight to Trieste from United States takes 12h 10m (Orlando 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 $122 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 88% 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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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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