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Trieste

$469+ Cheap flights from Boston (BOS) to Trieste (TRS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — TRS
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Find 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 October 27, 2025.

This Mytrip deal was found by Cheapflights users on 10/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:45 amBOS - TRS
2 stops27h 10mMultiple Airlines
Sun 12/149:05 pmTRS - BOS
2 stops22h 20mMultiple Airlines
Deal found 10/25$494
This ITA Airways deal was found by Cheapflights users on 10/25. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:20 pmBOS - TRS
1 stop15h 10mITA Airways
Sat 12/67:15 pmTRS - BOS
1 stop24h 30mITA Airways
Deal found 10/25$512
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/284:20 pmBOS - TRS
1 stop15h 45mLufthansa
Thu 12/46:15 amTRS - BOS
1 stop13h 10mLufthansa
Deal found 10/25$520
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:40 pmBOS - TRS
2 stops19h 50mLufthansa
Fri 12/56:25 amTRS - BOS
1 stop13h 00mLufthansa
Deal found 10/25$528
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/284:20 pmBOS - TRS
1 stop15h 45mLufthansa
Fri 12/56:25 amTRS - BOS
2 stops23h 16mLufthansa
Deal found 10/25$530
This KLM deal was found by Cheapflights users on 10/24. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:10 pmBOS - TRS
2 stops19h 20mKLM
Sun 12/146:35 amTRS - BOS
1 stop14h 00mKLM
Deal found 10/24$532
This ITA Airways deal was found by Cheapflights users on 10/25. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:20 pmBOS - TRS
2 stops21h 50mITA Airways
Sun 12/76:35 amTRS - BOS
1 stop13h 10mITA Airways
Deal found 10/25$534
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/284:20 pmBOS - TRS
1 stop15h 45mLufthansa
Wed 12/32:40 pmTRS - BOS
1 stop28h 45mLufthansa
Deal found 10/25$539
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:40 pmBOS - TRS
2 stops19h 50mLufthansa
Tue 12/22:40 pmTRS - BOS
1 stop28h 45mLufthansa
Deal found 10/25$548

Cheap 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 October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$494
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$811
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
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($155 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 27, 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

Mon 3/9

5:25 pm-2:00 pm

1 stop15h 35m

Trieste Ronchi dei Legionari

Fri 3/20

6:25 am-2:10 pm

1 stop12h 45m

$469

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Mon 3/9

4:23 pm-2:00 pm

2 stops16h 37m

Trieste Ronchi dei Legionari

Fri 3/20

6:25 am-8:15 pm

2 stops18h 50m

$485

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Thu 12/4

10:45 am-7:55 pm

2 stops27h 10m

Trieste Ronchi dei Legionari

Sun 12/14

9:05 pm-1:25 pm

2 stops22h 20m

$494

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Wed 12/3

5:20 pm-2:30 pm

1 stop15h 10m

Trieste Ronchi dei Legionari

Sat 12/6

7:15 pm-1:45 pm

1 stop24h 30m

$512

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Wed 12/3

5:20 pm-2:30 pm

1 stop15h 10m

Trieste Ronchi dei Legionari

Sun 12/7

6:35 am-1:45 pm

1 stop13h 10m

$512

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Thu 11/27

8:40 pm-10:30 pm

2 stops19h 50m

Trieste Ronchi dei Legionari

Thu 12/4

6:15 am-1:25 pm

1 stop13h 10m

$528

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Fri 11/28

4:20 pm-2:05 pm

1 stop15h 45m

Trieste Ronchi dei Legionari

Thu 12/4

6:15 am-11:41 pm

2 stops23h 26m

$530

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Mon 2/9

5:05 pm-2:30 pm

2 stops15h 25m

Trieste Ronchi dei Legionari

Wed 2/25

6:35 am-10:33 pm

2 stops21h 58m

$531

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Fri 11/28

4:20 pm-2:05 pm

1 stop15h 45m

Trieste Ronchi dei Legionari

Tue 12/2

2:40 pm-1:25 pm

1 stop28h 45m

$539

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Fri 12/19

5:20 pm-10:25 am

1 stop11h 05m

$1,145

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 11 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 October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
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, January is the cheapest month in which you can book a flight from Boston to Trieste (average of $358). Flying from Boston to Trieste in June is currently the most expensive (average of $527). 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 October 27, 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.

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 October 27, 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
7,532 reviews

Food

6.3

Crew

7.6

Boarding

7.0

Overall

6.8

Entertainment

6.4

Comfort

6.8

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
7,532 reviews
Lufthansa
6.8
Okay
7,532 reviews

Food

6.3

Crew

7.6

Boarding

7.0

Overall

6.8

Entertainment

6.4

Comfort

6.8

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
1,077 reviews
Lufthansa
6.8
Okay
7,532 reviews

Food

6.3

Crew

7.6

Boarding

7.0

Overall

6.8

Entertainment

6.4

Comfort

6.8

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 and ITA Airways fly from Boston to Trieste in about 15h 10m. The time it takes to get you to your destination can typically vary by up to 25m. 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 49% 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, January is the cheapest month in which you can book a flight from Boston to Trieste (average of $358). Flying from Boston to Trieste in June is currently the most expensive (average of $527). 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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$427Average$837FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$513Average$727FlexibilityNo cancel feeOn-time76%

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