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Cheap flights from the United States to Trieste from $202

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 9/1. 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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0 bags

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Find the cheapest flights from the United States to Trieste

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

ITA Airways Logo
5:45 pm - 10:25 amJFK-TRS
11h 40m1 stop
ITA Airways Logo
7:15 pm - 6:55 pmTRS-JFK
29h 40m1 stop
$397ITA Airways
Find Deal
Mon, Oct 27 - Mon, Nov 3
ITA Airways Logo
5:45 pm - 10:55 pmJFK-TRS
24h 10m1 stop
ITA Airways Logo
7:15 pm - 2:15 pmTRS-JFK
25h 00m1 stop
$432ITA Airways
Find Deal
Mon, Oct 27 - Mon, Nov 3
Lufthansa Logo
10:00 pm - 10:35 pmBOS-TRS
18h 35m1 stop
Lufthansa Logo
6:30 am - 4:00 pmTRS-BOS
15h 30m1 stop
$519Lufthansa
Find Deal
Sun, Aug 24 - Tue, Sep 2
Lufthansa Logo
10:00 pm - 10:35 pmBOS-TRS
18h 35m1 stop
Lufthansa Logo
6:30 am - 4:00 pmTRS-BOS
15h 30m1 stop
$520Lufthansa
Find Deal
Tue, Aug 19 - Tue, Sep 2
Logo
12:30 am - 12:20 pmJFK-TRS
29h 50m2 stops
Logo
7:25 pm - 10:30 pmTRS-JFK
33h 05m1 stop
$535
Find Deal
Sun, Sep 21 - Wed, Oct 1
Logo
6:20 pm - 10:50 pmJFK-TRS
22h 30m1 stop
Logo
6:20 am - 10:30 pmTRS-JFK
22h 10m2 stops
$539
Find Deal
Wed, Sep 3 - Fri, Sep 5
TAP AIR PORTUGAL Logo
12:55 am - 6:30 pmEWR-TRS
36h 35m2 stops
TAP AIR PORTUGAL Logo
11:15 am - 3:30 pmTRS-EWR
34h 15m2 stops
$582TAP AIR PORTUGAL
Find Deal
Sun, Oct 26 - Mon, Nov 3
TAP AIR PORTUGAL Logo
12:55 am - 6:30 pmEWR-TRS
36h 35m2 stops
TAP AIR PORTUGAL Logo
11:15 am - 3:30 pmTRS-EWR
34h 15m2 stops
$583TAP AIR PORTUGAL
Find Deal
Sun, Oct 26 - Mon, Nov 3
SWISS Logo
7:50 pm - 6:30 pmMIA-TRS
16h 40m2 stops
SWISS Logo
3:15 pm - 2:40 pmTRS-MIA
53h 25m2 stops
$780SWISS
Find Deal
Tue, Nov 18 - Sun, Nov 30
SWISS Logo
7:50 pm - 6:30 pmMIA-TRS
40h 40m2 stops
SWISS Logo
3:15 pm - 2:40 pmTRS-MIA
29h 25m2 stops
$875SWISS
Find Deal
Fri, Nov 28 - Sun, Dec 14

Lufthansa flights from United States to Trieste

Our best Lufthansa deals on United States to Trieste flight tickets
Lufthansa
Aug 7
BOS8:05 pmBoston Logan Intl
20h 20m
2 stops
TRS10:25 pmTrieste Ronchi dei Legionari
Oct 8
TRS6:30 amTrieste Ronchi dei Legionari
19h 40m
1 stop
BOS8:10 pmBoston Logan Intl
$509
Find similar
Lufthansa
Aug 7
BOS10:00 pmBoston Logan Intl
18h 25m
1 stop
TRS10:25 pmTrieste Ronchi dei Legionari
Oct 8
TRS6:30 amTrieste Ronchi dei Legionari
19h 40m
1 stop
BOS8:10 pmBoston Logan Intl
$517
Find similar
Lufthansa
Aug 24
BOS10:00 pmBoston Logan Intl
18h 35m
1 stop
TRS10:35 pmTrieste Ronchi dei Legionari
Sep 2
TRS6:30 amTrieste Ronchi dei Legionari
15h 30m
1 stop
BOS4:00 pmBoston Logan Intl
$519
Find similar

SWISS flights from United States to Trieste

Our best SWISS deals on United States to Trieste flight tickets
SWISS
Nov 18
MIA7:50 pmMiami
16h 40m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Nov 30
TRS3:15 pmTrieste Ronchi dei Legionari
53h 25m
2 stops
MIA2:40 pmMiami
$780
Find similar
SWISS
Nov 28
MIA7:50 pmMiami
40h 40m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Dec 14
TRS3:15 pmTrieste Ronchi dei Legionari
29h 25m
2 stops
MIA2:40 pmMiami
$875
Find similar
SWISS
Nov 28
MIA7:50 pmMiami
40h 40m
2 stops
TRS6:30 pmTrieste Ronchi dei Legionari
Dec 14
TRS3:15 pmTrieste Ronchi dei Legionari
29h 25m
2 stops
MIA2:40 pmMiami
$876
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United States to Trieste that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 2, 2025.
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

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Mon 10/27

5:45 pm-10:25 am

1 stop11h 40m

Trieste Ronchi dei Legionari

Mon 11/3

7:15 pm-6:55 pm

1 stop29h 40m

$397

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Mon 10/27

5:45 pm-10:55 pm

1 stop24h 10m

Trieste Ronchi dei Legionari

Mon 11/3

7:15 pm-2:15 pm

1 stop25h 00m

$432

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Sun 8/24

10:00 pm-10:35 pm

1 stop18h 35m

Trieste Ronchi dei Legionari

Tue 9/2

6:30 am-4:00 pm

1 stop15h 30m

$519

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Tue 8/19

10:00 pm-10:35 pm

1 stop18h 35m

Trieste Ronchi dei Legionari

Tue 9/2

6:30 am-4:00 pm

1 stop15h 30m

$520

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Sun 9/21

12:30 am-12:20 pm

2 stops29h 50m

Trieste Ronchi dei Legionari

Wed 10/1

7:25 pm-10:30 pm

1 stop33h 05m

$535

New YorkTrieste

JFK - TRS

JFKTRS

New York John F Kennedy Intl

Wed 9/3

6:20 pm-10:50 pm

1 stop22h 30m

Trieste Ronchi dei Legionari

Fri 9/5

6:20 am-10:30 pm

2 stops22h 10m

$539

NewarkTrieste

EWR - TRS

EWRTRS

Newark

Sun 10/26

12:55 am-6:30 pm

2 stops36h 35m

Trieste Ronchi dei Legionari

Mon 11/3

11:15 am-3:30 pm

2 stops34h 15m

$582

NewarkTrieste

EWR - TRS

EWRTRS

Newark

Sun 10/26

12:55 am-6:30 pm

2 stops36h 35m

Trieste Ronchi dei Legionari

Mon 11/3

11:15 am-3:30 pm

2 stops34h 15m

$583

MiamiTrieste

MIA - TRS

MIATRS

Miami

Tue 11/18

7:50 pm-6:30 pm

2 stops16h 40m

Trieste Ronchi dei Legionari

Sun 11/30

3:15 pm-2:40 pm

2 stops53h 25m

$780

MiamiTrieste

MIA - TRS

MIATRS

Miami

Fri 11/28

7:50 pm-6:30 pm

2 stops40h 40m

Trieste Ronchi dei Legionari

Sun 12/14

3:15 pm-2:40 pm

2 stops29h 25m

$875

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Trieste from

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?

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

Best Price Found

$202

Fastest flight time

10h 05m

Direct flights

None

Airports in Trieste

1 airport
The best one-way flight to Trieste from United States in the past 72 hours is $202. The best round-trip flight deal from United States to Trieste found on momondo in the last 72 hours is $397.
The fastest flight from United States to Trieste takes 10h 05m
There are no direct flights from United States to Trieste. Popular non-direct routes for this connection are Boston Logan Intl Airport - Trieste Ronchi dei Legionari Airport, New York John F Kennedy Intl Airport - Trieste Ronchi dei Legionari Airport and Newark Airport - Trieste Ronchi dei Legionari Airport.
There is 1 airport near Trieste: Trieste Ronchi dei Legionari (TRS)
Search flight deals

  • 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?

  • 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 AirwaysPriceFrom $427Free CancellationRating
6.7
1,011 reviews
Search ITA Airways flights
LufthansaPriceFrom $641Free CancellationRating
6.8
7,276 reviews
Search Lufthansa flights

Traveling to a place near Trieste?

Book flights to Trieste if you plan to visit one of these locations
Grado
Udine

Why use momondo?

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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