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

ITA Airways, at $428, 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.

What is the cheapest day to fly from Boston to Trieste?

Travelers seeking maximum savings on their Boston to Trieste flight should consider departing on Tuesday evenings when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

What is the cheapest day to fly round-trip from Boston to Trieste?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 50% when planning your travel around this day of the week.

What is the cheapest month to fly from Boston to Trieste?

February is one of the best times of the year to fly to Trieste from Boston. Prices for February average $891 per person but you can even find prices for as low as $562. The most expensive prices can be found in the month of April. Opting for a February flight can save you 44% on your journey compared to booking in April

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.

$428+ Flights from Boston to Trieste

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Cheap flight deals from Boston to Trieste

Round-trip from	$428 (lol.travel)
Popular in	April
Cheapest in	February
Average price	$837

From Boston Logan Intl to Trieste Ronchi dei Legionari

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($86 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 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 July 29, 2025.

Mon 8/255:05 pmBOS - TRS

1 stop19h 25mITA Airways

Mon 9/13:15 pmTRS - BOS

1 stop28h 25mITA Airways

Deal found 7/27

$428

Wed 8/65:05 pmBOS - TRS

1 stop19h 25mMultiple Airlines

Mon 11/1011:15 amTRS - BOS

2 stops17h 14mMultiple Airlines

Deal found 7/28

$513

Wed 7/305:50 pmBOS - TRS

1 stop14h 15mLufthansa

Mon 11/32:45 pmTRS - BOS

1 stop28h 40mLufthansa

Deal found 7/29

$514

Best flights from Boston to Trieste
Discover carefully curated flight deals from Boston to Trieste that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Mon 8/255:05 pmBOS - TRS

1 stop19h 25mITA Airways

Mon 9/13:15 pmTRS - BOS

1 stop28h 25mITA Airways

Deal found 7/27

$428

Wed 8/65:05 pmBOS - TRS

1 stop19h 25mMultiple Airlines

Mon 11/1011:15 amTRS - BOS

2 stops17h 14mMultiple Airlines

Deal found 7/28

$513

Mon 8/258:05 pmBOS - TRS

2 stops20h 20mLufthansa

Mon 9/12:45 pmTRS - BOS

1 stop31h 15mLufthansa

Deal found 7/27

$540

Last-minute flights from Boston to Trieste
Discover last-minute flight deals from Boston to Trieste. Data last updated July 29, 2025 and is based on user searches.

Wed 7/305:50 pmBOS - TRS

1 stop14h 15mLufthansa

Mon 11/32:45 pmTRS - BOS

1 stop28h 40mLufthansa

Deal found 7/29

$514

Wed 8/65:05 pmBOS - TRS

1 stop19h 25mMultiple Airlines

Mon 11/1011:15 amTRS - BOS

2 stops17h 14mMultiple Airlines

Deal found 7/28

$513

Wed 8/68:05 pmBOS - TRS

2 stops36h 00mLufthansa

Mon 11/102:45 pmTRS - BOS

1 stop28h 40mLufthansa

Deal found 7/29

$591

Fri 8/228:50 pmBOS - TRS

2 stops55h 35mDelta

Sat 8/306:35 amTRS - BOS

2 stops20h 06mDelta

Deal found 7/28

$1,209

Sun 8/2410:20 pmBOS - TRS

2 stops38h 10mTAP AIR PORTUGAL

Mon 9/13:15 pmTRS - BOS

2 stops34h 50mTAP AIR PORTUGAL

Deal found 7/28

$969

Mon 8/255:05 pmBOS - TRS

1 stop19h 25mITA Airways

Mon 9/13:15 pmTRS - BOS

1 stop28h 25mITA Airways

Deal found 7/27

$428

Fly from

Fly to

Route

Depart

Return

Price

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Mon 8/25

5:05 pm-6:30 pm

1 stop19h 25m

Trieste Ronchi dei Legionari

Mon 9/1

3:15 pm-1:40 pm

1 stop28h 25m

$428

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Wed 8/6

5:05 pm-6:30 pm

1 stop19h 25m

Trieste Ronchi dei Legionari

Mon 11/10

11:15 am-10:29 pm

2 stops17h 14m

$513

BostonTrieste

BOS - TRS

BOSTRS

Boston Logan Intl

Mon 8/25

8:05 pm-10:25 pm

2 stops20h 20m

Trieste Ronchi dei Legionari

Mon 9/1

2:45 pm-4:00 pm

1 stop31h 15m

$540

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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?

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.

Reviews of airlines servicing Trieste

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

7,265 reviews

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

7,265 reviews

Lufthansa

6.8

Okay

7,265 reviews

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

1,009 reviews

Lufthansa

6.8

Okay

7,265 reviews

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

What are the cheapest airlines flying from Boston to Trieste round-trip?
ITA Airways, at $428, 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.

See more FAQs

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Top 2 airlines flying from Boston to Trieste

Airline	Cheapest	Average	Flexibility	On-time
ITA Airways	Cheapest$427	Average$837	FlexibilityNo cancel fee	On-time81%
Lufthansa	Cheapest$641	Average$848	FlexibilityNo cancel fee	On-time76%

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$428+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Trieste with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Boston to Trieste

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Boston to Trieste

Cheapest flights from Boston to TriesteExplore 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 July 29, 2025.

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 July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Trieste that are best for you.

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.

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 July 29, 2025.

Reviews of airlines servicing Trieste

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.

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?

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

How can I find direct flights from Boston to Trieste?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Trieste

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Boston to Trieste

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Book with Flexibility

Travel Smart

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 July 29, 2025.