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Trieste

$471+ Cheap flights from Boston (BOS) to Trieste (TRS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — TRS
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Boston to Trieste

Cheapest flights from Boston to Trieste
Explore the most affordable flight options available from Boston to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This KLM deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:40 pm
BOS
-
TRS
1 stop24h 15m
KLM
Sat 5/236:35 am
TRS
-
BOS
1 stop15h 59m
KLM
Deal found 1/25$639
This Gotogate deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/411:00 pm
BOS
-
TRS
2 stops37h 30m
Icelandair
Sat 5/2311:15 am
TRS
-
BOS
2 stops16h 30m
Icelandair
Deal found 1/25$643
This Mytrip deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1212:35 pm
BOS
-
TRS
2 stops24h 55m
Multiple Airlines
Thu 3/196:35 am
TRS
-
BOS
2 stops17h 15m
Multiple Airlines
Deal found 1/26$693
This Mytrip deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:05 pm
BOS
-
TRS
1 stop19h 25m
ITA Airways
Sat 5/233:15 pm
TRS
-
BOS
1 stop28h 25m
ITA Airways
Deal found 1/24$729
This Expedia deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/125:25 pm
BOS
-
TRS
1 stop15h 40m
Lufthansa
Thu 3/196:15 am
TRS
-
BOS
1 stop12h 55m
Lufthansa
Deal found 1/26$756
This Mytrip deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:45 pm
BOS
-
TRS
1 stop14h 10m
Multiple Airlines
Sat 5/236:00 am
TRS
-
BOS
2 stops22h 39m
Multiple Airlines
Deal found 1/24$779
This Cheapflightsfares deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/18:05 pm
BOS
-
TRS
2 stops20h 20m
Lufthansa
Sat 7/116:00 am
TRS
-
BOS
1 stop20h 10m
Lufthansa
Deal found 1/26$856
This oojo deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/277:50 pm
BOS
-
TRS
2 stops21h 05m
Multiple Airlines
Thu 3/56:35 am
TRS
-
BOS
2 stops17h 15m
Multiple Airlines
Deal found 1/26$863

Find flight deals from Boston to Trieste

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Trieste (TRS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$639
(KLM)

One-way from

$471
(United Airlines)

Popular in

February

Cheapest in

November
Provider with most accurate pricing for Boston Logan Intl-Trieste Ronchi dei Legionari flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Trieste Ronchi dei Legionari flights.
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From Boston Logan Intl to Trieste Ronchi dei Legionari
Search Deals
One-way flight from Boston Logan Intl to Trieste Ronchi dei Legionari
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($362 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($81 potential savings vs. average RT price).
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
Use the filters below to find and compare flights from Boston to Trieste that are best for you.

Fly from

Boston

Fly to

Trieste

Route

Depart

Return

Price

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Mon 5/4

4:40 pm-10:55 pm

1 stop24h 15m

Trieste Ronchi dei Legionari

Sat 5/23

6:35 am-4:34 pm

1 stop15h 59m

$639

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Mon 5/4

11:00 pm-6:30 pm

2 stops37h 30m

Trieste Ronchi dei Legionari

Sat 5/23

11:15 am-9:45 pm

2 stops16h 30m

$643

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Thu 3/12

12:35 pm-6:30 pm

2 stops24h 55m

Trieste Ronchi dei Legionari

Thu 3/19

6:35 am-6:50 pm

2 stops17h 15m

$693

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Thu 3/12

5:25 pm-2:05 pm

1 stop15h 40m

Trieste Ronchi dei Legionari

Thu 3/19

6:15 am-2:10 pm

1 stop12h 55m

$756

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Mon 5/4

5:45 pm-1:55 pm

1 stop14h 10m

Trieste Ronchi dei Legionari

Sat 5/23

6:00 am-10:39 pm

2 stops22h 39m

$779

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Wed 7/1

8:05 pm-10:25 pm

2 stops20h 20m

Trieste Ronchi dei Legionari

Sat 7/11

6:00 am-8:10 pm

1 stop20h 10m

$856

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Fri 2/27

7:50 pm-6:30 pm

2 stops16h 40m

Trieste Ronchi dei Legionari

Thu 3/5

6:35 am-5:50 pm

2 stops17h 15m

$899

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Thu 2/5

7:50 pm-6:30 pm

2 stops16h 40m

Trieste Ronchi dei Legionari

Mon 2/9

6:35 am-5:50 pm

2 stops17h 15m

$1,081

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Fri 2/6

6:05 pm-10:55 pm

2 stops46h 50m

Trieste Ronchi dei Legionari

Tue 2/10

11:15 am-2:35 pm

2 stops57h 20m

$1,088

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Sun 5/31

5:25 am-10:25 am

2 stops47h 00m

$471

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 13 results
1
2

Compare providers for flights from Boston to Trieste

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Trieste in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Trieste flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Trieste flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Trieste flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Trieste flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Trieste flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Trieste

Have a flexible travel schedule? Discover the best time to fly to Trieste from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Trieste

What is the cheapest month to book a flight from Boston to Trieste?

Currently, October is the cheapest month in which you can book a flight from Boston to Trieste (average of $370). Flying from Boston to Trieste in June is currently the most expensive (average of $538). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Trieste

Get insights into the airlines that provide service to Trieste. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Trieste. Reviews last updated January 26, 2026.
Read reviews from past customers who have flown Lufthansa and ITA Airways from Boston to Trieste. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,747 reviews

Entertainment

6.4

Comfort

6.8

Food

6.3

Boarding

7.0

Overall

6.8

Crew

7.6

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.
Lufthansa
6.8
Okay
7,747 reviews
Lufthansa
6.8
Okay
7,747 reviews

Entertainment

6.4

Comfort

6.8

Food

6.3

Boarding

7.0

Overall

6.8

Crew

7.6

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.
ITA Airways
6.7
Okay
1,131 reviews
Lufthansa
6.8
Okay
7,747 reviews

Entertainment

6.4

Comfort

6.8

Food

6.3

Boarding

7.0

Overall

6.8

Crew

7.6

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.

Related info for your journey

Find useful and relevant information for your journey from Boston to Trieste. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Boston to Trieste?

    Airlines like KLM and Icelandair fly from Boston to Trieste in about 24h 15m. The time it takes to get you to your destination can typically vary by up to 13h 15m. There are 3992 mi between Boston and Trieste. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Boston to Trieste round-trip?

    ITA Airways, at $427, was found to be the cheapest airline from Boston to Trieste. An alternate airline flying to your destination would be Lufthansa. These flights start at 53% lower than the current average price 3 months from now.

  • Can I find deals for flights from Boston to Trieste that include hotel bookings?

    Yes. In addition to deals on Boston to Trieste flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Trieste?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Trieste.

  • Can I find deals for business class flights from Boston to Trieste?

    Yes. Cheapflights offers flight deals from Boston to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Trieste?

    Currently, October is the cheapest month in which you can book a flight from Boston to Trieste (average of $370). Flying from Boston to Trieste in June is currently the most expensive (average of $538). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Boston to Trieste

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Boston to Trieste

Discover the top 2 airlines that operate flights from Boston to Trieste. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$427Average$837FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$513Average$690FlexibilityNo cancel feeOn-time76%

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