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

United Airlines, TAP AIR PORTUGAL, and ITA Airways 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 10m 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, Lufthansa and Delta 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 20 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 September 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.

$281 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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Recent round-trip flight deals from the United States to Trieste

Enter your travel dates to find the best prices.

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

$565KLM

Sun, Nov 8 - Tue, Nov 17

3:15 pm - 6:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

18h 15m1 stop Rome Fiumicino

3:15 pm - 1:30 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

31h 15m1 stop Rome Fiumicino

$603ITA Airways

Mon, Oct 19 - Mon, Nov 9

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

18h 10m1 stop Rome Fiumicino

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

15h 55m1 stop Rome Fiumicino

$616ITA Airways

Wed, Nov 11 - Fri, Nov 20

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

18h 10m1 stop Rome Fiumicino

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

15h 55m1 stop Rome Fiumicino

$616ITA Airways

Tue, Nov 10 - Wed, Nov 18

10:20 am - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

19h 10m2 stops New York John F Kennedy Intl Rome Fiumicino

6:35 am - 8:25 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

22h 50m2 stops Rome Fiumicino Minneapolis St Paul

$622KLM

Wed, Nov 11 - Fri, Nov 20

8:00 am - 2:30 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

21h 30m2 stops Minneapolis St Paul Rome Fiumicino

6:35 am - 8:25 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

22h 50m2 stops Rome Fiumicino Minneapolis St Paul

$622KLM

Tue, Nov 10 - Fri, Nov 20

3:35 pm - 1:55 pmORD Chicago O'Hare Intl-TRS Trieste Ronchi dei Legionari

15h 20m2 stops Munich Franz Josef Strauss Frankfurt am Main

6:15 am - 6:15 pmTRS Trieste Ronchi dei Legionari-ORD Chicago O'Hare Intl

19h 00m2 stops Frankfurt am Main Munich Franz Josef Strauss

$921Lufthansa

Fri, Oct 16 - Thu, Oct 22

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

17h 45m2 stops Munich Franz Josef Strauss Rome Fiumicino

3:15 pm - 4:55 pmTRS Trieste Ronchi dei Legionari-MIA Miami

55h 40m2 stops Rome Fiumicino Munich Franz Josef Strauss

$1,062Lufthansa

Thu, Dec 10 - Mon, Dec 28

6:45 pm - 2:30 pmMIA Miami-TRS Trieste Ronchi dei Legionari

37h 45m2 stops Munich Franz Josef Strauss Rome Fiumicino

3:15 pm - 4:55 pmTRS Trieste Ronchi dei Legionari-MIA Miami

55h 40m2 stops Rome Fiumicino Munich Franz Josef Strauss

$1,062Lufthansa

Fri, Dec 11 - Sun, Dec 27

Recent last minute flight deals from the United States to Trieste

Enter your travel dates to find the best prices.

3:15 pm - 10:55 pmSFO San Francisco-TRS Trieste Ronchi dei Legionari

22h 40m1 stop Rome Fiumicino

11:15 am - 1:10 pmTRS Trieste Ronchi dei Legionari-SFO San Francisco

34h 55m1 stop Rome Fiumicino

$706ITA Airways

Mon, Sep 28 - Mon, Dec 28

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

21h 10m1 stop Rome Fiumicino

6:35 am - 8:25 pmTRS Trieste Ronchi dei Legionari-MIA Miami

19h 50m1 stop Rome Fiumicino

$791ITA Airways

Sat, Sep 26 - Wed, Sep 30

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

15h 15m1 stop Frankfurt am Main

2:50 pm - 2:40 pmTRS Trieste Ronchi dei Legionari-MIA Miami

29h 50m1 stop Frankfurt am Main

$851Lufthansa

Thu, Sep 24 - Mon, Sep 28

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

15h 15m1 stop Frankfurt am Main

2:50 pm - 2:40 pmTRS Trieste Ronchi dei Legionari-MIA Miami

29h 50m1 stop Frankfurt am Main

$855Multiple Airlines

Thu, Sep 24 - Mon, Sep 28

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

18h 45m1 stop Frankfurt am Main

6:10 am - 1:10 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

16h 00m1 stop Frankfurt am Main

$888Lufthansa

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

7:45 pm - 9:00 pmMIA Miami-TRS Trieste Ronchi dei Legionari

19h 15m2 stops Rome Fiumicino Milan Linate

7:30 am - 8:25 pmTRS Trieste Ronchi dei Legionari-MIA Miami

18h 55m2 stops Milan Linate Rome Fiumicino

$924Multiple Airlines

Sat, Sep 26 - Wed, Sep 30

5:30 pm - 10:25 pmLAX Los Angeles-TRS Trieste Ronchi dei Legionari

19h 55m2 stops Munich Franz Josef Strauss Frankfurt am Main

6:10 am - 1:10 pmTRS Trieste Ronchi dei Legionari-LAX Los Angeles

16h 00m1 stop Frankfurt am Main

$926Lufthansa

Wed, Sep 23 - Mon, Sep 28

10:06 am - 2:30 pmSFO San Francisco-TRS Trieste Ronchi dei Legionari

19h 24m2 stops Los Angeles Rome Fiumicino

6:35 am - 1:10 pmTRS Trieste Ronchi dei Legionari-SFO San Francisco

15h 35m1 stop Rome Fiumicino

$951Multiple Airlines

Sat, Sep 26 - Sat, Dec 5

5:35 pm - 2:30 pmJFK New York John F Kennedy Intl-TRS Trieste Ronchi dei Legionari

14h 55m1 stop Rome Fiumicino

6:35 am - 1:55 pmTRS Trieste Ronchi dei Legionari-JFK New York John F Kennedy Intl

13h 20m1 stop Rome Fiumicino

$1,004ITA Airways

Wed, Sep 23 - Wed, Sep 30

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TAP AIR PORTUGAL flights from United States to Trieste

Our best TAP AIR PORTUGAL deals on United States to Trieste flight tickets

TAP AIR PORTUGAL

Jan 28

EWR5:40 pmNewark

14h 50m

2 stops

TRS2:30 pmTrieste Ronchi dei Legionari

Feb 1

TRS6:35 amTrieste Ronchi dei Legionari

38h 45m

2 stops

EWR3:20 pmNewark

$791

TAP AIR PORTUGAL

Mar 5

JFK10:00 pmNew York John F Kennedy Intl

34h 30m

2 stops

TRS2:30 pmTrieste Ronchi dei Legionari

Mar 13

TRS11:15 amTrieste Ronchi dei Legionari

38h 50m

2 stops

JFK8:05 pmNew York John F Kennedy Intl

$818

TAP AIR PORTUGAL

Nov 6

JFK10:00 pmNew York John F Kennedy Intl

34h 30m

2 stops

TRS2:30 pmTrieste Ronchi dei Legionari

Nov 16

TRS11:15 amTrieste Ronchi dei Legionari

38h 50m

2 stops

JFK8:05 pmNew York John F Kennedy Intl

$827

Lufthansa flights from United States to Trieste

Our best Lufthansa deals on United States to Trieste flight tickets

Lufthansa

Sep 30

BOS10:00 pmBoston Logan Intl

10h 00m

1 stop

TRS2:00 pmTrieste Ronchi dei Legionari

Oct 5

TRS6:10 amTrieste Ronchi dei Legionari

20h 00m

1 stop

BOS8:10 pmBoston Logan Intl

$814

Lufthansa

Sep 23

LAX6:40 pmLos Angeles

18h 45m

1 stop

TRS10:25 pmTrieste Ronchi dei Legionari

Sep 28

TRS6:10 amTrieste Ronchi dei Legionari

16h 00m

1 stop

LAX1:10 pmLos Angeles

$888

Lufthansa

Oct 14

LAX6:40 pmLos Angeles

18h 45m

1 stop

TRS10:25 pmTrieste Ronchi dei Legionari

Oct 22

TRS6:15 amTrieste Ronchi dei Legionari

15h 55m

1 stop

LAX1:10 pmLos Angeles

$904

momondo Fare Finder

Use the filters below to find and compare flights from the United States to Trieste that are best for you.

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

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

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 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

$565

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Mon 10/19

3:15 pm-6:30 pm

1 stop18h 15m

Trieste Ronchi dei Legionari

Mon 11/9

3:15 pm-1:30 pm

1 stop31h 15m

$603

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Wed 11/11

3:20 pm-6:30 pm

1 stop18h 10m

Trieste Ronchi dei Legionari

Fri 11/20

6:35 am-1:30 pm

1 stop15h 55m

$616

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Tue 11/10

3:20 pm-6:30 pm

1 stop18h 10m

Trieste Ronchi dei Legionari

Wed 11/18

6:35 am-1:30 pm

1 stop15h 55m

$616

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Wed 11/11

10:20 am-2:30 pm

2 stops19h 10m

Trieste Ronchi dei Legionari

Fri 11/20

6:35 am-8:25 pm

2 stops22h 50m

$622

Los AngelesTrieste

LAX Los Angeles - TRS Trieste Ronchi dei Legionari

LAXTRS

Los Angeles

Tue 11/10

8:00 am-2:30 pm

2 stops21h 30m

Trieste Ronchi dei Legionari

Fri 11/20

6:35 am-8:25 pm

2 stops22h 50m

$622

ChicagoTrieste

ORD Chicago O'Hare Intl - TRS Trieste Ronchi dei Legionari

ORDTRS

Chicago O'Hare Intl

Fri 10/16

3:35 pm-1:55 pm

2 stops15h 20m

Trieste Ronchi dei Legionari

Thu 10/22

6:15 am-6:15 pm

2 stops19h 00m

$921

MiamiTrieste

MIA Miami - TRS Trieste Ronchi dei Legionari

MIATRS

Miami

Thu 12/10

6:45 pm-6:30 pm

2 stops17h 45m

Trieste Ronchi dei Legionari

Mon 12/28

3:15 pm-4:55 pm

2 stops55h 40m

$1,062

MiamiTrieste

MIA Miami - TRS Trieste Ronchi dei Legionari

MIATRS

Miami

Fri 12/11

6:45 pm-2:30 pm

2 stops37h 45m

Trieste Ronchi dei Legionari

Sun 12/27

3:15 pm-4:55 pm

2 stops55h 40m

$1,062

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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

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 $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 $658.

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	$281
Fastest flight time	10h 45m
Direct flights	None

The best one-way flight to Trieste from United States in the past 72 hours is $281. The best round-trip flight deal from United States to Trieste found on momondo in the last 72 hours is $559.

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 September 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 1,365 reviews		Search ITA Airways flights
Lufthansa	PriceFrom $499	Free Cancellation	Rating 6.8 8,235 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?

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Cheap flights from the United States to Trieste from $281

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 10/18. 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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TAP AIR PORTUGAL flights from United States to Trieste

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

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?

What airlines fly to Trieste?

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An easier way to manage your Trieste trip

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