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Trieste

$420+ 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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — TRS
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$776
(Delta)

One-way from

$420
(Kiwi.com)

Popular in

April

Cheapest in

February

Average price

$1,290
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. 2% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 17, 2025.

This FlightHub deal was found by Cheapflights users on 4/17. 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.
Mon 10/65:50 pmBOS - TRS
1 stop14h 15mLufthansa
Sun 10/196:30 amTRS - BOS
1 stop15h 30mLufthansa
Deal found 4/17$731
This oojo deal was found by Cheapflights users on 4/17. 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.
Mon 10/610:40 pmBOS - TRS
2 stops18h 15mTAP AIR PORTUGAL
Sun 10/193:15 pmTRS - BOS
2 stops34h 50mTAP AIR PORTUGAL
Deal found 4/17$743
This Delta deal was found by Cheapflights users on 4/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/94:20 pmBOS - TRS
1 stop12h 05mDelta
Tue 6/246:35 amTRS - BOS
1 stop16h 00mDelta
Deal found 4/17$776
This Mytrip deal was found by Cheapflights users on 4/17. 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.
Sun 6/19:46 amBOS - TRS
3 stops46h 44mMultiple Airlines
Sun 6/810:50 pmTRS - BOS
2 stops27h 15mMultiple Airlines
Deal found 4/17$819
This Gurufare deal was found by Cheapflights users on 4/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/305:05 pmBOS - TRS
1 stop19h 25mITA Airways
Sun 7/137:15 pmTRS - BOS
1 stop24h 25mITA Airways
Deal found 4/17$959

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 April 17, 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 10/6

5:50 pm-2:05 pm

1 stop14h 15m

Trieste Ronchi dei Legionari

Sun 10/19

6:30 am-4:00 pm

1 stop15h 30m

$731

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Mon 10/6

10:40 pm-10:55 pm

2 stops18h 15m

Trieste Ronchi dei Legionari

Sun 10/19

3:15 pm-8:05 pm

2 stops34h 50m

$743

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Mon 6/9

4:20 pm-10:25 am

1 stop12h 05m

Trieste Ronchi dei Legionari

Tue 6/24

6:35 am-4:35 pm

1 stop16h 00m

$776

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Sun 6/1

9:46 am-2:30 pm

3 stops46h 44m

Trieste Ronchi dei Legionari

Sun 6/8

10:50 pm-8:05 pm

2 stops27h 15m

$819

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Mon 6/30

5:05 pm-6:30 pm

1 stop19h 25m

Trieste Ronchi dei Legionari

Sun 7/13

7:15 pm-1:40 pm

1 stop24h 25m

$959

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Thu 6/12

9:15 pm-10:40 am

3 stops31h 25m

$420

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Fri 5/9

10:00 pm-10:25 pm

1 stop18h 25m

$615

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Thu 6/12

4:20 pm-10:25 am

1 stop12h 05m

$740

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Tue 7/8

6:35 pm-2:30 pm

2 stops37h 55m

$1,756

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Boston-Trieste flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 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 April 17, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 9% on flights from Boston to Trieste by exploring options for tickets in the morning.

Rainfall in Trieste by month

Plan your trip to Trieste by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Trieste ranges from 2.4 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. February is typically the driest time to visit Trieste when rainfall is around 2.4 in.

Temperature in Trieste by month

Plan your trip to Trieste by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Trieste, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 April 17, 2025.
Delta
8.0
Very good
7,917 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
TAP AIR PORTUGAL
7.1
Good
1,837 reviews
Delta
8.0
Very good
7,917 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
ITA Airways
6.7
Okay
961 reviews
Delta
8.0
Very good
7,917 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Lufthansa
6.7
Okay
7,012 reviews
Delta
8.0
Very good
7,917 reviews

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    Delta, at $776, was found to be the cheapest airline from Boston to Trieste.Alternate airlines to your destination round-trip include Lufthansa and ITA Airways. These flights start at 22% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Boston to Trieste one-way?

    To fly one-way, consider booking your trip with Lufthansa, which is currently one of the cheapest options available, starting at $615. Delta flights start at $740 while deals on TAP AIR PORTUGAL start at $1,756 one-way.

  • 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.

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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$589Average$1,014FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$656Average$1,055FlexibilityNo cancel feeOn-time76%

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