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

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

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 New York to Venice Marco Polo Airport is 8h 15m on average, while flying from Boston to Venice Marco Polo Airport is 9h 50m on average. Venice Marco Polo Airport is the most popular airport in Trieste.

What airlines fly to Trieste?

United Airlines, Delta and British Airways 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 30% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 22 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

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 2025.

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.

$368 Cheap Flights from the United States to Trieste in 2025/26

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Find the cheapest flights from the United States to Trieste

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Recent round-trip flight deals from the United States to Trieste

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4:45 pm - 10:25 amJFK-TRS

11h 40m1 stop

6:35 am - 2:15 pmTRS-JFK

13h 40m1 stop

$546ITA Airways

Find Deal

Thu, Nov 13 - Sat, Nov 22

3:15 pm - 2:05 pmRDU-TRS

16h 50m2 stops

3:00 pm - 2:05 pmTRS-RDU

29h 05m1 stop

$556Lufthansa

Find Deal

Fri, Dec 5 - Sun, Dec 14

9:15 pm - 9:10 pmJFK-TRS

17h 55m2 stops

6:35 am - 2:15 pmTRS-JFK

13h 40m1 stop

$561ITA Airways

Find Deal

Thu, Nov 13 - Sat, Nov 22

3:15 pm - 2:05 pmRDU-TRS

16h 50m2 stops

3:00 pm - 9:33 pmTRS-RDU

36h 33m2 stops

$561Lufthansa

Find Deal

Fri, Dec 5 - Sun, Dec 14

1:09 pm - 6:30 pmRDU-TRS

23h 21m2 stops

6:35 am - 10:27 pmTRS-RDU

21h 52m2 stops

$562KLM

Find Deal

Sat, Dec 6 - Sun, Dec 14

7:30 pm - 6:30 pmJFK-TRS

17h 00m1 stop

6:35 am - 3:50 pmTRS-JFK

15h 15m1 stop

$594KLM

Find Deal

Sun, Nov 23 - Thu, Nov 27

11:00 pm - 6:30 pmJFK-TRS

14h 30m2 stops

11:15 am - 9:05 pmTRS-JFK

38h 50m2 stops

$698TAP AIR PORTUGAL

Find Deal

Thu, Mar 12 - Sun, Mar 15

5:30 pm - 6:30 pmIAD-TRS

19h 00m2 stops

3:15 pm - 9:00 pmTRS-IAD

35h 45m2 stops

$698TAP AIR PORTUGAL

Find Deal

Tue, Jan 20 - Thu, Feb 5

5:05 pm - 6:30 pmBOS-TRS

19h 25m2 stops

3:15 pm - 3:30 pmTRS-BOS

30h 15m2 stops

$830SWISS

Find Deal

Thu, Apr 23 - Sun, May 3

4:15 pm - 6:30 pmJFK-TRS

20h 15m2 stops

3:15 pm - 12:50 pmTRS-JFK

27h 35m2 stops

$1,419SWISS

Find Deal

Thu, Apr 2 - Mon, Apr 6

ITA Airways flights from United States to Trieste

Our best ITA Airways deals on United States to Trieste flight tickets

ITA Airways

Nov 10

JFK4:45 pmNew York John F Kennedy Intl

24h 10m

1 stop

TRS10:55 pmTrieste Ronchi dei Legionari

Nov 19

TRS11:15 amTrieste Ronchi dei Legionari

33h 00m

1 stop

JFK2:15 pmNew York John F Kennedy Intl

$498

Find similar

ITA Airways

Nov 10

JFK4:45 pmNew York John F Kennedy Intl

22h 25m

2 stops

TRS9:10 pmTrieste Ronchi dei Legionari

Nov 19

TRS7:15 pmTrieste Ronchi dei Legionari

29h 40m

1 stop

JFK6:55 pmNew York John F Kennedy Intl

$514

Find similar

ITA Airways

Nov 10

JFK4:45 pmNew York John F Kennedy Intl

13h 35m

2 stops

TRS12:20 pmTrieste Ronchi dei Legionari

Nov 19

TRS1:05 pmTrieste Ronchi dei Legionari

31h 10m

2 stops

JFK2:15 pmNew York John F Kennedy Intl

$529

Find similar

Lufthansa flights from United States to Trieste

Our best Lufthansa deals on United States to Trieste flight tickets

Lufthansa

Dec 5

RDU3:15 pmRaleigh-Durham

16h 50m

2 stops

TRS2:05 pmTrieste Ronchi dei Legionari

Dec 14

TRS3:00 pmTrieste Ronchi dei Legionari

29h 05m

1 stop

RDU2:05 pmRaleigh-Durham

$556

Find similar

Lufthansa

Dec 5

RDU3:15 pmRaleigh-Durham

16h 50m

2 stops

TRS2:05 pmTrieste Ronchi dei Legionari

Dec 14

TRS3:00 pmTrieste Ronchi dei Legionari

36h 33m

2 stops

RDU9:33 pmRaleigh-Durham

$561

Find similar

Lufthansa

Dec 6

RDU7:45 pmRaleigh-Durham

36h 15m

2 stops

TRS2:00 pmTrieste Ronchi dei Legionari

Dec 14

TRS3:00 pmTrieste Ronchi dei Legionari

29h 05m

1 stop

RDU2:05 pmRaleigh-Durham

$573

Find similar

Fly from

Fly to

Route

Depart

Return

Price

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Thu 11/13

4:45 pm-10:25 am

1 stop11h 40m

Trieste Ronchi dei Legionari

Sat 11/22

6:35 am-2:15 pm

1 stop13h 40m

$546

RaleighTrieste

RDU - TRS

RDUTRS

Raleigh-Durham

Fri 12/5

3:15 pm-2:05 pm

2 stops16h 50m

Trieste Ronchi dei Legionari

Sun 12/14

3:00 pm-2:05 pm

1 stop29h 05m

$556

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Thu 11/13

9:15 pm-9:10 pm

2 stops17h 55m

Trieste Ronchi dei Legionari

Sat 11/22

6:35 am-2:15 pm

1 stop13h 40m

$561

RaleighTrieste

RDU - TRS

RDUTRS

Raleigh-Durham

Fri 12/5

3:15 pm-2:05 pm

2 stops16h 50m

Trieste Ronchi dei Legionari

Sun 12/14

3:00 pm-9:33 pm

2 stops36h 33m

$561

RaleighTrieste

RDU - TRS

RDUTRS

Raleigh-Durham

Sat 12/6

1:09 pm-6:30 pm

2 stops23h 21m

Trieste Ronchi dei Legionari

Sun 12/14

6:35 am-10:27 pm

2 stops21h 52m

$562

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Sun 11/23

7:30 pm-6:30 pm

1 stop17h 00m

Trieste Ronchi dei Legionari

Thu 11/27

6:35 am-3:50 pm

1 stop15h 15m

$594

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Thu 3/12

11:00 pm-6:30 pm

2 stops14h 30m

Trieste Ronchi dei Legionari

Sun 3/15

11:15 am-9:05 pm

2 stops38h 50m

$698

Washington, D.C.Trieste

IAD - TRS

IADTRS

Washington, D.C. Dulles Intl

Tue 1/20

5:30 pm-6:30 pm

2 stops19h 00m

Trieste Ronchi dei Legionari

Thu 2/5

3:15 pm-9:00 pm

2 stops35h 45m

$698

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Thu 4/23

5:05 pm-6:30 pm

2 stops19h 25m

Trieste Ronchi dei Legionari

Sun 5/3

3:15 pm-3:30 pm

2 stops30h 15m

$830

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Thu 4/2

4:15 pm-6:30 pm

2 stops20h 15m

Trieste Ronchi dei Legionari

Mon 4/6

3:15 pm-12:50 pm

2 stops27h 35m

$1,419

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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

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Other information

What is the cheapest month to fly to Trieste?

The cheapest month to fly to Trieste from United States is in March. Flight prices, which tend to average around $660, are often lower during this time because this is during the off-season. If you don’t want to visit Trieste in March, then you should wait until January to fly from United States, when ticket prices are also cheap, with an average price of $677.

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 Saturday when prices can be found for as low as $871. This is often the case because there is less demand to fly during this day of the week. Flights from United States to Trieste on a Friday will generally be more expensive and average around $1,279. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Trieste is in the afternoon. Flights from United States to Trieste during this time can be as low as $1,020. Flights to Trieste are more costly in the evening, with an average ticket price of $1,116. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

You could potentially save up to 35% 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

Direct flights	None

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

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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 2025.
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 $427	Free Cancellation	Rating 6.7 1,079 reviews		Search ITA Airways flights
Lufthansa	PriceFrom $513	Free Cancellation	Rating 6.8 7,544 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 $368

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 12/15. 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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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

What is the cheapest month to fly to Trieste?

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

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

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

You could potentially save up to 35% on your flight if you consider stops on a United States to Trieste flight.

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

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

What airlines fly to Trieste?

How long does it take to fly to Trieste?

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

Direct flights

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

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

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

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

Best airlines flying from United States to Trieste

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

Traveling to a place near Trieste?

Why use momondo?

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

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

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

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

An easier way to manage your Trieste trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Italy

Fly your favorite airline to Trieste

Airlines are sorted and displayed according to clicks in the past 7 days on momondo