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Trieste

$312+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — TRS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This FlightHub deal was found by Cheapflights users on 12/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/189:45 pmBOS - TRS
2 stops14h 45mMultiple Airlines
Thu 1/17:15 pmTRS - BOS
2 stops25h 20mMultiple Airlines
Deal found 12/9$3,713

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$514
(Mytrip)

One-way from

$312
(Kiwi.com)

Popular in

February

Cheapest in

November

Average price

$979
Provider with most accurate pricing for Boston Logan Intl-Trieste Ronchi dei Legionari flight deals.
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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
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One-way flight from Boston Logan Intl to Trieste Ronchi dei Legionari
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Highest demand for flights based on searches. 30% potential increase in price ($395 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($85 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 12, 2025.
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

Sun 1/25

8:40 pm-6:30 pm

2 stops39h 50m

Trieste Ronchi dei Legionari

Sun 2/1

3:15 pm-8:00 pm

2 stops34h 45m

$514

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Sun 1/25

4:15 pm-10:25 pm

1 stop24h 10m

Trieste Ronchi dei Legionari

Sun 2/1

3:15 pm-1:35 pm

2 stops52h 20m

$595

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Fri 2/27

8:40 pm-6:30 pm

2 stops39h 50m

Trieste Ronchi dei Legionari

Thu 3/5

11:15 am-7:08 pm

2 stops37h 53m

$630

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Wed 2/4

6:05 pm-6:30 pm

2 stops42h 25m

Trieste Ronchi dei Legionari

Sun 2/8

3:15 pm-2:45 pm

2 stops53h 30m

$721

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Sun 1/18

10:45 pm-10:55 pm

2 stops18h 10m

Trieste Ronchi dei Legionari

Fri 1/23

6:35 am-2:35 pm

2 stops38h 00m

$3,292

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Wed 5/6

5:30 pm-4:00 pm

1 stop16h 30m

$312

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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 December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Trieste flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $535). 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.

What is the cheapest time of day to fly from BOS to TRS?

Find hourly flight availability from Boston to Trieste. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 31% on flights from Boston to Trieste by exploring options for tickets in the morning.

How much does it cost to fly round-trip from Boston to Trieste?

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 December 12, 2025.
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
7,626 reviews

Food

6.3

Comfort

6.8

Crew

7.6

Entertainment

6.4

Overall

6.8

Boarding

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.
Lufthansa
6.8
Okay
7,626 reviews
Lufthansa
6.8
Okay
7,626 reviews

Food

6.3

Comfort

6.8

Crew

7.6

Entertainment

6.4

Overall

6.8

Boarding

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.
ITA Airways
6.7
Okay
1,100 reviews
Lufthansa
6.8
Okay
7,626 reviews

Food

6.3

Comfort

6.8

Crew

7.6

Entertainment

6.4

Overall

6.8

Boarding

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.

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 Lufthansa fly from Boston to Trieste in about 24h 10m. The time it takes to get you to your destination can typically vary by up to . There are 3992 mi between Boston and Trieste.

  • 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 51% 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 $535). 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

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$427Average$837FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$513Average$727FlexibilityNo cancel feeOn-time76%

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