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Cheap flights from Boston to Trieste from $569

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Trieste departing on 6/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Boston to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
ITA Airways Logo
6:20 pm - 10:25 am
BOS
-
TRS
11h 05m
1 stop
ITA Airways Logo
7:15 pm - 1:40 pm
TRS
-
BOS
24h 25m
1 stop
$585ITA Airways
dom., mar. 22 - lun., abr. 6
Lufthansa Logo
5:25 pm - 2:00 pm
BOS
-
TRS
15h 35m
1 stop
Lufthansa Logo
6:10 am - 3:40 pm
TRS
-
BOS
15h 30m
1 stop
$608Lufthansa
lun., mar. 23 - mar., abr. 7
Lufthansa Logo
2:15 pm - 2:00 pm
BOS
-
TRS
18h 45m
2 stops
Lufthansa Logo
6:00 am - 3:40 pm
TRS
-
BOS
15h 40m
1 stop
$613Lufthansa
dom., mar. 22 - vie., abr. 10
Lufthansa Logo
5:25 pm - 2:00 pm
BOS
-
TRS
15h 35m
1 stop
Lufthansa Logo
6:10 am - 11:59 pm
TRS
-
BOS
23h 49m
2 stops
$618Lufthansa
lun., mar. 23 - mié., abr. 8
Lufthansa Logo
2:15 pm - 2:00 pm
BOS
-
TRS
18h 45m
2 stops
Lufthansa Logo
6:00 am - 11:59 pm
TRS
-
BOS
23h 59m
2 stops
$623Lufthansa
dom., mar. 22 - vie., abr. 10
Lufthansa Logo
7:34 pm - 2:00 pm
BOS
-
TRS
37h 26m
2 stops
Lufthansa Logo
6:10 am - 3:40 pm
TRS
-
BOS
15h 30m
1 stop
$624Lufthansa
sáb., mar. 21 - mar., abr. 7
TAP AIR PORTUGAL Logo
7:05 pm - 6:30 pm
BOS
-
TRS
18h 25m
2 stops
TAP AIR PORTUGAL Logo
6:35 am - 8:45 pm
TRS
-
BOS
20h 10m
2 stops
$627TAP AIR PORTUGAL
lun., mar. 23 - mié., abr. 8
Lufthansa Logo
7:34 pm - 2:00 pm
BOS
-
TRS
37h 26m
2 stops
Lufthansa Logo
6:10 am - 11:59 pm
TRS
-
BOS
23h 49m
2 stops
$628Lufthansa
sáb., mar. 21 - mié., abr. 8
Lufthansa Logo
5:25 pm - 2:05 pm
BOS
-
TRS
15h 40m
1 stop
Lufthansa Logo
6:10 am - 3:40 pm
TRS
-
BOS
15h 30m
1 stop
$633Lufthansa
mié., mar. 25 - mié., abr. 8
ITA Airways Logo
6:20 pm - 10:55 pm
BOS
-
TRS
23h 35m
1 stop
ITA Airways Logo
6:35 am - 1:40 pm
TRS
-
BOS
13h 05m
1 stop
$635ITA Airways
vie., mar. 20 - mié., abr. 8

ITA Airways flights from Boston to Trieste

Our best ITA Airways deals on Boston to Trieste flight tickets
ITA Airways
Mar 22
BOS6:20 pmBoston Logan Intl
11h 05m
1 stop
TRS10:25 amTrieste Ronchi dei Legionari
Apr 6
TRS7:15 pmTrieste Ronchi dei Legionari
24h 25m
1 stop
BOS1:40 pmBoston Logan Intl
$585
ITA Airways
Mar 20
BOS6:20 pmBoston Logan Intl
23h 35m
1 stop
TRS10:55 pmTrieste Ronchi dei Legionari
Apr 8
TRS6:35 amTrieste Ronchi dei Legionari
13h 05m
1 stop
BOS1:40 pmBoston Logan Intl
$635
ITA Airways
Mar 22
BOS6:20 pmBoston Logan Intl
13h 00m
2 stops
TRS12:20 pmTrieste Ronchi dei Legionari
Apr 5
TRS7:15 pmTrieste Ronchi dei Legionari
24h 25m
1 stop
BOS1:40 pmBoston Logan Intl
$657

Lufthansa flights from Boston to Trieste

Our best Lufthansa deals on Boston to Trieste flight tickets
Lufthansa
Mar 23
BOS5:25 pmBoston Logan Intl
15h 35m
1 stop
TRS2:00 pmTrieste Ronchi dei Legionari
Apr 7
TRS6:10 amTrieste Ronchi dei Legionari
15h 30m
1 stop
BOS3:40 pmBoston Logan Intl
$608
Lufthansa
Mar 22
BOS2:15 pmBoston Logan Intl
18h 45m
2 stops
TRS2:00 pmTrieste Ronchi dei Legionari
Apr 10
TRS6:00 amTrieste Ronchi dei Legionari
15h 40m
1 stop
BOS3:40 pmBoston Logan Intl
$613
Lufthansa
Mar 23
BOS5:25 pmBoston Logan Intl
15h 35m
1 stop
TRS2:00 pmTrieste Ronchi dei Legionari
Apr 8
TRS6:10 amTrieste Ronchi dei Legionari
23h 49m
2 stops
BOS11:59 pmBoston Logan Intl
$618

momondo Fare Finder

 
Customize your flight search to find flights from Boston 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 enero 29, 2026.
Use the filters below to find and compare flights from Boston to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

dom. 3/22

6:20 pm-10:25 am

1 stop11h 05m

Trieste Ronchi dei Legionari

lun. 4/6

7:15 pm-1:40 pm

1 stop24h 25m

$585

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

lun. 3/23

5:25 pm-2:00 pm

1 stop15h 35m

Trieste Ronchi dei Legionari

mar. 4/7

6:10 am-3:40 pm

1 stop15h 30m

$608

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

dom. 3/22

2:15 pm-2:00 pm

2 stops18h 45m

Trieste Ronchi dei Legionari

vie. 4/10

6:00 am-3:40 pm

1 stop15h 40m

$613

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

lun. 3/23

5:25 pm-2:00 pm

1 stop15h 35m

Trieste Ronchi dei Legionari

mié. 4/8

6:10 am-11:59 pm

2 stops23h 49m

$618

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

dom. 3/22

2:15 pm-2:00 pm

2 stops18h 45m

Trieste Ronchi dei Legionari

vie. 4/10

6:00 am-11:59 pm

2 stops23h 59m

$623

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

sáb. 3/21

7:34 pm-2:00 pm

2 stops37h 26m

Trieste Ronchi dei Legionari

mar. 4/7

6:10 am-3:40 pm

1 stop15h 30m

$624

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

lun. 3/23

7:05 pm-6:30 pm

2 stops18h 25m

Trieste Ronchi dei Legionari

mié. 4/8

6:35 am-8:45 pm

2 stops20h 10m

$627

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

sáb. 3/21

7:34 pm-2:00 pm

2 stops37h 26m

Trieste Ronchi dei Legionari

mié. 4/8

6:10 am-11:59 pm

2 stops23h 49m

$628

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

mié. 3/25

5:25 pm-2:05 pm

1 stop15h 40m

Trieste Ronchi dei Legionari

mié. 4/8

6:10 am-3:40 pm

1 stop15h 30m

$633

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

vie. 3/20

6:20 pm-10:55 pm

1 stop23h 35m

Trieste Ronchi dei Legionari

mié. 4/8

6:35 am-1:40 pm

1 stop13h 05m

$635

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Trieste from

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

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

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

What airlines fly to Trieste?

SWISS, Lufthansa and United Airlines 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 30% of people opting to fly with this airline when traveling to Trieste. Keep in mind that there are 18 different airlines that fly to Trieste on a routine basis, so you have a few additional options to choose from.

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

Fastest flight time

14h 10m

Direct flights

None
The fastest flight from Boston to Trieste takes 14h 10m
There are no direct flights from Boston to Trieste. There are no popular flight routes from Boston to Trieste.
Search flight deals

  • 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 14h 10m, 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?

  • 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?

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 AirwaysPriceFrom $427Free CancellationRating
6.7
1,137 reviews
Search ITA Airways flights
LufthansaPriceFrom $513Free CancellationRating
6.8
7,756 reviews
Search Lufthansa flights

Traveling to a place near Trieste?

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

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.

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