Which layover airport has the shortest travel time from Boston to Trieste?

Flights connecting via Zurich (ZRH) have the shortest average one-way travel time: 10h 08m.

Which layover airport offers the lowest fares from Boston to Trieste?

Flights via Rome (FCO) offer the lowest average round-trip price of $635.

Which airport is the most popular layover for flights between Boston and Trieste?

Zurich (ZRH) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

What is the cheapest airline that flies from Boston Logan Intl to Trieste Ronchi dei Legionari?

TAP AIR PORTUGAL and United Airlines are the most popular carriers operating from Boston Logan Intl to Trieste Ronchi dei Legionari

Which layover airport has the shortest connection time from Boston to Trieste?

Zurich (ZRH) has the shortest average layover time for this route: 1h 48m.

What airlines fly to Trieste?

SWISS, Lufthansa and Condor are the top three most popular airlines that fly to Trieste from Boston according to our data. SWISS 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 16 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 Boston Logan Intl Airport to Trieste Ronchi dei Legionari Airport?

Prices for flights from Boston Logan Intl Airport to Trieste Ronchi dei Legionari Airport are updated daily.

How many operators does momondo search for flights from Boston Logan Intl Airport to Trieste Ronchi dei Legionari Airport?

The number of operators available for flights from Boston Logan Intl Airport to Trieste Ronchi dei Legionari Airport is 2 as of September 2026.

How old do you have to be to fly from Boston Logan Intl Airport 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 Boston Logan Intl Airport to Trieste Ronchi dei Legionari Airport.

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

The required travel and health documents for your Trieste Ronchi dei Legionari Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Trieste Ronchi dei Legionari Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$554 Cheap Flights from Boston to Trieste in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Trieste

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:20 pm - 10:25 amBOS Boston Logan Intl-TRS Trieste Ronchi dei Legionari

11h 05m1 stop Rome Fiumicino

7:15 pm - 1:45 pmTRS Trieste Ronchi dei Legionari-BOS Boston Logan Intl

24h 30m1 stop Rome Fiumicino

$727ITA Airways

Wed, Dec 30 - Tue, Jan 5

5:20 pm - 10:25 amBOS Boston Logan Intl-TRS Trieste Ronchi dei Legionari

11h 05m1 stop Rome Fiumicino

6:35 am - 1:45 pmTRS Trieste Ronchi dei Legionari-BOS Boston Logan Intl

13h 10m1 stop Rome Fiumicino

$727ITA Airways

Wed, Dec 30 - Wed, Jan 6

5:20 pm - 2:30 pmBOS Boston Logan Intl-TRS Trieste Ronchi dei Legionari

15h 10m1 stop Rome Fiumicino

6:35 am - 1:45 pmTRS Trieste Ronchi dei Legionari-BOS Boston Logan Intl

13h 10m1 stop Rome Fiumicino

$727ITA Airways

Sun, Dec 27 - Wed, Jan 6

5:20 pm - 10:25 amBOS Boston Logan Intl-TRS Trieste Ronchi dei Legionari

11h 05m1 stop Rome Fiumicino

7:15 pm - 1:45 pmTRS Trieste Ronchi dei Legionari-BOS Boston Logan Intl

24h 30m1 stop Rome Fiumicino

$727ITA Airways

Sun, Dec 27 - Tue, Jan 5

6:00 pm - 6:30 pmBOS Boston Logan Intl-TRS Trieste Ronchi dei Legionari

18h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino

6:35 am - 8:15 pmTRS Trieste Ronchi dei Legionari-BOS Boston Logan Intl

19h 40m2 stops Rome Fiumicino Lisbon Humberto Delgado

$841Multiple Airlines

Sun, Dec 6 - Thu, Dec 10

6:00 pm - 6:30 pmBOS Boston Logan Intl-TRS Trieste Ronchi dei Legionari

18h 30m2 stops Lisbon Humberto Delgado Rome Fiumicino

6:35 am - 8:15 pmTRS Trieste Ronchi dei Legionari-BOS Boston Logan Intl

19h 40m2 stops Rome Fiumicino Lisbon Humberto Delgado

$842Multiple Airlines

Sun, Dec 6 - Thu, Dec 10

5:05 pm - 6:30 pmBOS Boston Logan Intl-TRS Trieste Ronchi dei Legionari

19h 25m2 stops New York John F Kennedy Intl Rome Fiumicino

6:35 am - 2:35 pmTRS Trieste Ronchi dei Legionari-BOS Boston Logan Intl

14h 00m1 stop Rome Fiumicino

$891KLM

Sun, Dec 6 - Thu, Dec 10

10:00 pm - 10:15 pmBOS Boston Logan Intl-TRS Trieste Ronchi dei Legionari

18h 15m1 stop Frankfurt am Main

6:10 am - 8:10 pmTRS Trieste Ronchi dei Legionari-BOS Boston Logan Intl

20h 00m1 stop Frankfurt am Main

$982Lufthansa

Thu, Oct 8 - Mon, Oct 12

10:00 pm - 1:55 pmBOS Boston Logan Intl-TRS Trieste Ronchi dei Legionari

9h 55m1 stop Frankfurt am Main

6:10 am - 5:40 pmTRS Trieste Ronchi dei Legionari-BOS Boston Logan Intl

17h 30m2 stops Frankfurt am Main Munich Franz Josef Strauss

$1,006Lufthansa

Thu, Oct 8 - Mon, Oct 12

8:40 pm - 6:30 pmBOS Boston Logan Intl-TRS Trieste Ronchi dei Legionari

39h 50m2 stops Munich Franz Josef Strauss Rome Fiumicino

3:15 pm - 6:35 pmTRS Trieste Ronchi dei Legionari-BOS Boston Logan Intl

33h 20m2 stops Rome Fiumicino Munich Franz Josef Strauss

$1,098Lufthansa

Mon, Dec 28 - Tue, Jan 5

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KLM flights from Boston to Trieste

Our best KLM deals on Boston to Trieste flight tickets

KLM

Nov 13

BOS6:45 pmBoston Logan Intl

13h 45m

1 stop

TRS2:30 pmTrieste Ronchi dei Legionari

Nov 20

TRS6:35 amTrieste Ronchi dei Legionari

22h 20m

2 stops

BOS10:55 pmBoston Logan Intl

$767

KLM

Dec 6

BOS5:05 pmBoston Logan Intl

19h 25m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Dec 10

TRS6:35 amTrieste Ronchi dei Legionari

14h 00m

1 stop

BOS2:35 pmBoston Logan Intl

$891

KLM

Feb 11

BOS7:20 pmBoston Logan Intl

17h 10m

2 stops

TRS6:30 pmTrieste Ronchi dei Legionari

Feb 21

TRS3:15 pmTrieste Ronchi dei Legionari

29h 11m

1 stop

BOS2:26 pmBoston Logan Intl

$1,654

ITA Airways flights from Boston to Trieste

Our best ITA Airways deals on Boston to Trieste flight tickets

ITA Airways

Dec 27

BOS5:20 pmBoston Logan Intl

15h 10m

1 stop

TRS2:30 pmTrieste Ronchi dei Legionari

Jan 6

TRS6:35 amTrieste Ronchi dei Legionari

13h 10m

1 stop

BOS1:45 pmBoston Logan Intl

$727

ITA Airways

Nov 13

BOS5:20 pmBoston Logan Intl

15h 10m

1 stop

TRS2:30 pmTrieste Ronchi dei Legionari

Nov 20

TRS6:35 amTrieste Ronchi dei Legionari

13h 10m

1 stop

BOS1:45 pmBoston Logan Intl

$728

ITA Airways

Dec 25

BOS5:20 pmBoston Logan Intl

11h 05m

1 stop

TRS10:25 amTrieste Ronchi dei Legionari

Jan 6

TRS6:35 amTrieste Ronchi dei Legionari

13h 10m

1 stop

BOS1:45 pmBoston Logan Intl

$777

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonTrieste

BOS Boston Logan Intl - TRS Trieste Ronchi dei Legionari

BOSTRS

Boston Logan Intl

Wed 12/30

5:20 pm-10:25 am

1 stop11h 05m

Trieste Ronchi dei Legionari

Tue 1/5

7:15 pm-1:45 pm

1 stop24h 30m

$727

Quickest round-trip

BostonTrieste

BOS Boston Logan Intl - TRS Trieste Ronchi dei Legionari

BOSTRS

Boston Logan Intl

Wed 12/30

5:20 pm-10:25 am

1 stop11h 05m

Trieste Ronchi dei Legionari

Wed 1/6

6:35 am-1:45 pm

1 stop13h 10m

$727

BostonTrieste

BOS Boston Logan Intl - TRS Trieste Ronchi dei Legionari

BOSTRS

Boston Logan Intl

Sun 12/27

5:20 pm-2:30 pm

1 stop15h 10m

Trieste Ronchi dei Legionari

Wed 1/6

6:35 am-1:45 pm

1 stop13h 10m

$727

BostonTrieste

BOS Boston Logan Intl - TRS Trieste Ronchi dei Legionari

BOSTRS

Boston Logan Intl

Sun 12/27

5:20 pm-10:25 am

1 stop11h 05m

Trieste Ronchi dei Legionari

Tue 1/5

7:15 pm-1:45 pm

1 stop24h 30m

$727

BostonTrieste

BOS Boston Logan Intl - TRS Trieste Ronchi dei Legionari

BOSTRS

Boston Logan Intl

Sun 12/6

6:00 pm-6:30 pm

2 stops18h 30m

Trieste Ronchi dei Legionari

Thu 12/10

6:35 am-8:15 pm

2 stops19h 40m

$841

BostonTrieste

BOS Boston Logan Intl - TRS Trieste Ronchi dei Legionari

BOSTRS

Boston Logan Intl

Sun 12/6

6:00 pm-6:30 pm

2 stops18h 30m

Trieste Ronchi dei Legionari

Thu 12/10

6:35 am-8:15 pm

2 stops19h 40m

$842

BostonTrieste

BOS Boston Logan Intl - TRS Trieste Ronchi dei Legionari

BOSTRS

Boston Logan Intl

Sun 12/6

5:05 pm-6:30 pm

2 stops19h 25m

Trieste Ronchi dei Legionari

Thu 12/10

6:35 am-2:35 pm

1 stop14h 00m

$891

BostonTrieste

BOS Boston Logan Intl - TRS Trieste Ronchi dei Legionari

BOSTRS

Boston Logan Intl

Thu 10/8

10:00 pm-10:15 pm

1 stop18h 15m

Trieste Ronchi dei Legionari

Mon 10/12

6:10 am-8:10 pm

1 stop20h 00m

$982

BostonTrieste

BOS Boston Logan Intl - TRS Trieste Ronchi dei Legionari

BOSTRS

Boston Logan Intl

Thu 10/8

10:00 pm-1:55 pm

1 stop9h 55m

Trieste Ronchi dei Legionari

Mon 10/12

6:10 am-5:40 pm

2 stops17h 30m

$1,006

BostonTrieste

BOS Boston Logan Intl - TRS Trieste Ronchi dei Legionari

BOSTRS

Boston Logan Intl

Mon 12/28

8:40 pm-6:30 pm

2 stops39h 50m

Trieste Ronchi dei Legionari

Tue 1/5

3:15 pm-6:35 pm

2 stops33h 20m

$1,098

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston 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

Layovers

What is the cheapest month to fly to Trieste?

The cheapest month to fly to Trieste from Boston is in May. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you don’t want to visit Trieste in May, then you should wait until January to fly from Boston, when ticket prices are also cheap, with an average price of $0.

When to book flights from Boston to Trieste

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Trieste according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Boston to Trieste (BOS to TRS) flight deals and tips

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

Best Price Found	$554
Fastest flight time	15h 25m
Direct flights	None

The best one-way flight to Trieste from Boston in the past 72 hours is $554. The best round-trip flight deal from Boston to Trieste found on momondo in the last 72 hours is $727.

The fastest flight from Boston to Trieste takes 15h 25m

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

Search flight deals

Frequently asked questions about flying from Boston to Trieste

How far is Boston Logan Intl to Trieste Ronchi dei Legionari by plane?
There are 4011.9 mi between Boston Logan Intl and Trieste Ronchi dei Legionari. Flights usually cover this in 15h 25m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Boston Logan Intl Airport to Trieste Ronchi dei Legionari Airport?
Prices for flights from Boston Logan Intl Airport to Trieste Ronchi dei Legionari Airport are updated daily.
How many operators does momondo search for flights from Boston Logan Intl Airport to Trieste Ronchi dei Legionari Airport?
The number of operators available for flights from Boston Logan Intl Airport to Trieste Ronchi dei Legionari Airport is 2 as of September 2026.
How old do you have to be to fly from Boston Logan Intl Airport 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 Boston Logan Intl Airport to Trieste Ronchi dei Legionari Airport.
What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?
The required travel and health documents for your Trieste Ronchi dei Legionari Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Trieste Ronchi dei Legionari Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Boston to Trieste?
Based on momondo bookings for flights between Boston and Trieste, the leading airline is Lufthansa, making up 59% of the total bookings. Other popular airlines include ITA Airways with 41%.

Best airlines flying from Boston to Trieste

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

Airline	Rating	Free Cancellation	Price
ITA Airways	PriceFrom $606	Free Cancellation	Rating 6.8 1,367 reviews		Search ITA Airways flights
Lufthansa	PriceFrom $718	Free Cancellation	Rating 6.8 8,247 reviews		Search Lufthansa flights

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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to Trieste for you.

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

Yes. momondo allows you to filter the results for Boston to Trieste flights to just show those with flexible booking policies.

How can momondo help me find flights from Boston to Trieste?

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

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

Price alerts on flights to Trieste from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.