What is the cheapest airline that flies from United States to Trieste Ronchi dei Legionari?

KLM, TAP AIR PORTUGAL, and Lufthansa are the most popular carriers operating from United States to Trieste Ronchi dei Legionari

What airlines fly to Trieste?

United Airlines, Delta and Condor are the top three most popular airlines that fly to Trieste from United States according to our data. United Airlines is the first choice among our users, with 29% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 20 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

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 Boston to Venice Marco Polo Airport is 7h 55m on average, while flying from New York to Venice Marco Polo Airport is 8h 05m on average. Venice Marco Polo Airport is the most popular airport in Trieste.

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

Prices for flights from United States to Trieste Ronchi dei Legionari Airport refresh daily.

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

There are 2 operators available for flights from United States to Trieste Ronchi dei Legionari Airport as of November 2026.

How old do you have to be to fly from United States 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 from United States 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 license 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.

$321 Cheap Flights from the United States to Trieste in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from the United States to Trieste

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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

$709ITA Airways

Tue, Nov 17 - 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

7:15 pm - 6:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

29h 40m1 stop Rome Fiumicino

$709ITA Airways

Mon, Nov 30 - Mon, Dec 7

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

$721ITA Airways

Wed, Feb 24 - Wed, Mar 3

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

$721ITA Airways

Tue, Feb 9 - Tue, Feb 16

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

18h 50m2 stops Lisbon Humberto Delgado Rome Fiumicino

6:35 am - 10:15 pmTRS Trieste Ronchi dei Legionari-EWR Newark

21h 40m2 stops Rome Fiumicino Lisbon Humberto Delgado

$727Multiple Airlines

Tue, Feb 9 - Tue, Feb 16

12:10 am - 9:50 amEWR Newark-TRS Trieste Ronchi dei Legionari

27h 40m3 stops Lisbon Humberto Delgado Rome Fiumicino Tirana Rinas

3:15 pm - 10:15 pmTRS Trieste Ronchi dei Legionari-EWR Newark

37h 00m2 stops Rome Fiumicino Lisbon Humberto Delgado

$742Multiple Airlines

Sun, Nov 29 - Mon, Dec 7

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

$746Multiple Airlines

Tue, Feb 9 - Tue, Feb 16

5:55 pm - 10:25 pmTPA Tampa-TRS Trieste Ronchi dei Legionari

22h 30m1 stop Frankfurt am Main

6:20 am - 3:55 pmTRS Trieste Ronchi dei Legionari-TPA Tampa

15h 35m1 stop Frankfurt am Main

$1,016Lufthansa

Wed, Apr 7 - Wed, May 26

1:55 pm - 6:30 pmTPA Tampa-TRS Trieste Ronchi dei Legionari

22h 35m2 stops Washington, D.C. Dulles Intl Rome Fiumicino

11:15 am - 4:35 pmTRS Trieste Ronchi dei Legionari-TPA Tampa

35h 20m2 stops Rome Fiumicino Frankfurt am Main

$1,162Lufthansa

Mon, Nov 30 - Mon, Dec 7

5:15 pm - 6:30 pmDEN Denver Intl-TRS Trieste Ronchi dei Legionari

18h 15m2 stops Munich Franz Josef Strauss Rome Fiumicino

6:20 am - 3:40 pmTRS Trieste Ronchi dei Legionari-DEN Denver Intl

17h 20m1 stop Frankfurt am Main

$1,197Lufthansa

Tue, Mar 23 - Tue, May 25

Recent last minute flight deals from the United States to Trieste

Enter your travel dates to find the best prices.

9:05 pm - 6:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

15h 25m1 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

$748ITA Airways

Tue, Nov 10 - Sat, Nov 14

3:20 pm - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

14h 10m1 stop Rome Fiumicino

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

27h 15m1 stop Rome Fiumicino

$768ITA Airways

Tue, Nov 10 - Tue, Dec 8

3:20 pm - 6:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

18h 10m1 stop Rome Fiumicino

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

27h 15m1 stop Rome Fiumicino

$768ITA Airways

Tue, Nov 10 - Mon, Dec 7

3:20 pm - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

14h 10m1 stop Rome Fiumicino

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

15h 55m1 stop Rome Fiumicino

$768ITA Airways

Wed, Nov 11 - Fri, Dec 11

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

$768ITA Airways

Wed, Nov 11 - Wed, Dec 9

3:20 pm - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

14h 10m1 stop Rome Fiumicino

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

15h 55m1 stop Rome Fiumicino

$768ITA Airways

Tue, Nov 10 - Fri, Dec 11

3:20 pm - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

14h 10m1 stop Rome Fiumicino

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

15h 55m1 stop Rome Fiumicino

$768ITA Airways

Tue, Nov 10 - Wed, Dec 9

3:20 pm - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

14h 10m1 stop Rome Fiumicino

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

27h 15m1 stop Rome Fiumicino

$768ITA Airways

Wed, Nov 11 - Mon, Dec 7

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

18h 50m2 stops Madrid Barajas Rome Fiumicino

6:00 am - 5:50 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

17h 50m2 stops Valencia Madrid Barajas

$807Multiple Airlines

Tue, Nov 10 - Sat, Nov 14

10:05 pm - 11:55 amJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

31h 50m2 stops Madrid Barajas Malaga

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

13h 40m1 stop Rome Fiumicino

$831Multiple Airlines

Tue, Nov 10 - Sat, Nov 14

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Lufthansa flights from United States to Trieste

Our best Lufthansa deals on United States to Trieste flight tickets

Lufthansa

Apr 7

TPA5:55 pmTampa

22h 30m

1 stop

TRS10:25 pmTrieste Ronchi dei Legionari

May 26

TRS6:20 amTrieste Ronchi dei Legionari

15h 35m

1 stop

TPA3:55 pmTampa

$1,016

Lufthansa

Apr 28

EWR6:00 pmNewark

13h 45m

1 stop

TRS1:45 pmTrieste Ronchi dei Legionari

May 5

TRS6:20 amTrieste Ronchi dei Legionari

15h 25m

1 stop

EWR3:45 pmNewark

$1,075

Lufthansa

Apr 28

EWR8:30 pmNewark

19h 55m

2 stops

TRS10:25 pmTrieste Ronchi dei Legionari

May 5

TRS6:20 amTrieste Ronchi dei Legionari

15h 25m

1 stop

EWR3:45 pmNewark

$1,078

United Airlines flights from United States to Trieste

Our best United Airlines deals on United States to Trieste flight tickets

United Airlines

Mar 7

TPA11:15 amTampa

17h 10m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Mar 10

TRS6:35 amTrieste Ronchi dei Legionari

20h 20m

2 stops

TPA8:55 pmTampa

$1,038

United Airlines

Mar 7

TPA11:15 amTampa

17h 10m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Mar 10

TRS6:35 amTrieste Ronchi dei Legionari

20h 20m

2 stops

TPA8:55 pmTampa

$1,039

United Airlines

Feb 23

LAX8:15 amLos Angeles

17h 10m

2 stops

TRS10:25 amTrieste Ronchi dei Legionari

Mar 2

TRS6:35 amTrieste Ronchi dei Legionari

21h 53m

2 stops

LAX7:28 pmLos Angeles

$1,047

Fly from

Fly to

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

Tue 11/17

4:40 pm-2:30 pm

1 stop15h 50m

Trieste Ronchi dei Legionari

Tue 11/24

3:15 pm-2:15 pm

1 stop29h 00m

$709

New YorkTrieste

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

JFKTRS

New York John F Kennedy Intl

Mon 11/30

4:40 pm-10:55 pm

1 stop24h 15m

Trieste Ronchi dei Legionari

Mon 12/7

7:15 pm-6:55 pm

1 stop29h 40m

$709

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

$721

New YorkTrieste

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

JFKTRS

New York John F Kennedy Intl

Tue 2/9

4:40 pm-6:30 pm

1 stop19h 50m

Trieste Ronchi dei Legionari

Tue 2/16

6:35 am-6:55 pm

1 stop18h 20m

$721

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

Tue 2/16

6:35 am-10:15 pm

2 stops21h 40m

$727

NewarkTrieste

EWR Newark - TRS Trieste Ronchi dei Legionari

EWRTRS

Newark

Sun 11/29

12:10 am-9:50 am

3 stops27h 40m

Trieste Ronchi dei Legionari

Mon 12/7

3:15 pm-10:15 pm

2 stops37h 00m

$742

Quickest round-trip

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

Tue 2/16

6:35 am-8:05 pm

2 stops19h 30m

$746

TampaTrieste

TPA Tampa - TRS Trieste Ronchi dei Legionari

TPATRS

Tampa

Wed 4/7

5:55 pm-10:25 pm

1 stop22h 30m

Trieste Ronchi dei Legionari

Wed 5/26

6:20 am-3:55 pm

1 stop15h 35m

$1,016

TampaTrieste

TPA Tampa - TRS Trieste Ronchi dei Legionari

TPATRS

Tampa

Mon 11/30

1:55 pm-6:30 pm

2 stops22h 35m

Trieste Ronchi dei Legionari

Mon 12/7

11:15 am-4:35 pm

2 stops35h 20m

$1,162

DenverTrieste

DEN Denver Intl - TRS Trieste Ronchi dei Legionari

DENTRS

Denver Intl

Tue 3/23

5:15 pm-6:30 pm

2 stops18h 15m

Trieste Ronchi dei Legionari

Tue 5/25

6:20 am-3:40 pm

1 stop17h 20m

$1,197

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United States to Trieste

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

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 $560, 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 $698.

Can stopping save me money on United States to Trieste flights?

You could potentially save up to 41% on your flight if you consider stops on a United States to Trieste flight.

Cheap United States to Trieste flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Trieste

Best Price Found	$321
Fastest flight time	10h 45m
Direct flights	None

The best one-way flight to Trieste from United States in the past 72 hours is $321. The best round-trip flight deal from United States to Trieste found on momondo in the last 72 hours is $709.

The fastest flight from United States to Trieste takes 10h 45m

There are no direct flights from United States to Trieste. There are no popular flight routes from United States to Trieste.

Search flight deals

Frequently asked questions about flying from the United States to Trieste

When did momondo last update prices for flights from United States to Trieste Ronchi dei Legionari Airport?
Prices for flights from United States to Trieste Ronchi dei Legionari Airport refresh daily.
How many operators does momondo search for flights from United States to Trieste Ronchi dei Legionari Airport?
There are 2 operators available for flights from United States to Trieste Ronchi dei Legionari Airport as of November 2026.
How old do you have to be to fly from United States 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 from United States 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 license 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.

Best airlines flying from United States to Trieste

Compare and see reviews for airlines that fly from United States to Trieste with momondo

Airline	Rating	Free Cancellation	Price
ITA Airways	PriceFrom $481	Free Cancellation	Rating 6.8 1,412 reviews		Search ITA Airways flights
Lufthansa	PriceFrom $499	Free Cancellation	Rating 6.8 8,299 reviews		Search Lufthansa flights

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Why should I use momondo to find a flight deal from United States 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 from United States.

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

Yes. momondo enables you to select and highlight flights to Trieste from United States with this policy.

How can momondo help me find flights from United States to Trieste?

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

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

Yes. momondo can track prices for United States to Trieste flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from the United States to Trieste from $321

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Trieste departing on 12/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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What is the cheapest month to fly to Trieste?

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What is the cheapest airline that flies from United States to Trieste Ronchi dei Legionari?

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An easier way to manage your Trieste trip

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