BOS - TRS

$299 Find Cheap Flights from Boston to Trieste

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Trieste departing on 5/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Trieste

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Trieste, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Trieste, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$671
ITA Airways
Wed 10/7Wed 10/21
BOS - TRS • 1 stop
Cheapest one-way
$299
Multiple Airlines
Wed 5/27
BOS - TRS • 2 stops
Top airlines
Cheapest • from $671 (round-trip)
Best reviews • 6.8 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Boston and Trieste. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $948 (round-trip)
Shortest trip • 10h 50m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Trieste!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Trieste (BOS-TRS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Trieste that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Trieste

Wed, Oct 7 - Wed, Oct 21
ITA Airways Logo
5:05 pm - 6:30 pm
BOS
-
TRS
19h 25m
1 stop
ITA Airways Logo
6:35 am - 1:40 pm
TRS
-
BOS
13h 05m
1 stop
$671ITA Airways
Tue, Jul 28 - Tue, Aug 25
ITA Airways Logo
5:05 pm - 10:25 am
BOS
-
TRS
11h 20m
1 stop
ITA Airways Logo
7:15 pm - 1:40 pm
TRS
-
BOS
24h 25m
1 stop
$672ITA Airways
Tue, Jul 28 - Tue, Aug 25
KLM Logo
1:35 pm - 2:30 pm
BOS
-
TRS
18h 55m
2 stops
KLM Logo
6:35 am - 4:48 pm
TRS
-
BOS
16h 13m
1 stop
$684KLM
Tue, Jul 28 - Tue, Aug 25
Lufthansa Logo
9:30 am - 1:45 pm
BOS
-
TRS
22h 15m
2 stops
Lufthansa Logo
6:20 am - 11:54 pm
TRS
-
BOS
23h 34m
2 stops
$701Lufthansa
Wed, Oct 7 - Wed, Oct 21
Multiple Airlines Logo
10:00 pm - 2:00 pm
BOS
-
TRS
10h 00m
1 stop
Multiple Airlines Logo
6:10 am - 10:40 pm
TRS
-
BOS
22h 30m
2 stops
$737Multiple Airlines
Thu, Jul 2 - Thu, Jul 9
Multiple Airlines Logo
11:35 pm - 8:05 am
BOS
-
TRS
26h 30m
1 stop
Multiple Airlines Logo
10:30 am - 9:45 pm
TRS
-
BOS
17h 15m
1 stop
$742Multiple Airlines
Thu, Jul 2 - Thu, Jul 9
Multiple Airlines Logo
11:35 pm - 8:15 pm
BOS
-
TRS
14h 40m
1 stop
Multiple Airlines Logo
11:15 am - 9:45 pm
TRS
-
BOS
16h 30m
2 stops
$789Multiple Airlines
Wed, Oct 7 - Wed, Oct 21
Multiple Airlines Logo
3:35 pm - 2:00 pm
BOS
-
TRS
16h 25m
2 stops
Multiple Airlines Logo
6:10 am - 10:40 pm
TRS
-
BOS
22h 30m
2 stops
$816Multiple Airlines
Thu, Aug 20 - Sat, Aug 29
Lufthansa Logo
10:00 pm - 10:15 pm
BOS
-
TRS
18h 15m
1 stop
Lufthansa Logo
6:15 am - 8:10 pm
TRS
-
BOS
19h 55m
1 stop
$821Lufthansa
Thu, Aug 20 - Sat, Aug 29
Lufthansa Logo
9:30 am - 1:55 pm
BOS
-
TRS
22h 25m
2 stops
Lufthansa Logo
2:45 pm - 8:10 pm
TRS
-
BOS
11h 25m
1 stop
$826Lufthansa
Booking Insights

KAYAK's insights & trends for Boston to Trieste flights

Get data-powered insights and trends into flights from Boston to Trieste to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boston to Trieste?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Trieste departing in October.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Trieste, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Trieste is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,368 and $1,034 respectively.

Good to know

Low seasonNovember
Cheapest flight$299
Best time to beat the crowds with an average 47% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from Boston to Trieste

When to book flights from Boston to Trieste

Are your dates flexible? Find out the best times to travel from Boston to Trieste based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Trieste

  • What services are offered to business class passengers on flights from Boston to Trieste with TAP Air Portugal?

    Business class passengers on flights from Boston to Trieste with TAP Air Portugal are offered a range of services and amenities to enhance their travel experience. Business class passengers are given priority boarding, allowing them to board the aircraft before other passengers and have access to more comfortable seats, with extra legroom and reclining. Some aircraft also have lie-flat seats that convert into beds.

  • How do I go from Trieste - Friuli Venezia Giulia Airport (TRS) to the city center?

    You can take the APT Gorizia bus, which departs from TRS to the city center. The bus departs every hour and arrives at the Trieste station in approximately 50 minutes. Taxis are also readily available outside the airport terminal and the journey to the city center takes around 30 minutes. Alternatively, you can book a private transfer online, and a driver will meet you at the airport.

  • What airline offers flights from Boston to Trieste with lower carbon emissions?

    Lufthansa has embarked on a massive fleet renewal program, which involves phasing out older planes and replacing them with newer, more fuel-efficient models. For instance, the Airbus A350-900, which the airline uses on long-haul flights like flights from Boston to Trieste, is estimated to consume up to 25% less fuel than older planes.

  • What is the luggage allowance on flights from Boston to Trieste with Delta?

    On the Basic Economy Fare, passengers are only permitted to bring one personal item onboard. Passengers traveling on Delta's Main Cabin fare are permitted to bring one carry-on luggage item and one personal item onboard. They also have the option to check in one checked bag, with a maximum weight of 50 lbs.

  • What is the cheapest flight from Boston to Trieste?

    In the last 3 days, the lowest price for a flight from Boston to Trieste was $299 for a one-way ticket and $671 for a round-trip.

  • Do I need a passport to fly between Boston and Trieste?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Trieste.

  • Which aircraft models fly most regularly from Boston to Trieste?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Trieste?

    Star Alliance is the only airline alliance operating flights between Boston and Trieste.

  • Which is the best airline for flights from Boston to Trieste, Lufthansa or ITA Airways?

    The two airlines most popular with KAYAK users for flights from Boston to Trieste are Lufthansa and ITA Airways. With an average price for the route of $849 and an overall rating of 6.8, Lufthansa is the most popular choice. ITA Airways is also a great choice for the route, with an average price of $862 and an overall rating of 6.7.

  • How does KAYAK find such low prices on flights from Boston to Trieste?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Trieste.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Trieste?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Trieste from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Trieste?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Trieste with an airline and back to Boston with another airline. Booking your flights between Boston and TRS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Trieste?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Trieste from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to Trieste

  • US citizens do not need a visa to enter Trieste, Italy for stays less than 90 days as a tourist. However, they must apply for an ETIAS (European Travel Information and Authorization System) authorization before their trip. If you are visiting for a longer period or for other purposes such as work or study, you will need to apply for a visa through the Italian Embassy or Consulate.
  • Passengers can expect to make one or two stops in various cities for flights from Boston (BOS) to Trieste (TRS). The exact city will depend on the airline you choose. Some common layovers for this route include Frankfurt (FRA), London (LGW), Rome (FCO), Barcelona (BCN), Munich (MUC), New York (JFK), and Atlanta (ATL).
  • ITA Airways offers various services for people with reduced mobility during and after flights from Boston (BOS) to Trieste (TRS). These services include wheelchair assistance, help to board or disembark the aircraft, guidance, and assistance through the airport, and a dedicated check-in counter.
  • Trieste - Friuli Venezia Giulia Airport (TRS) is approximately 21 miles northwest of Trieste City. The airport serves various nearby cities as well including Monfalcone, Gorizia, Grado, Udine, and Pordenone.
  • Delta Air Lines allows advanced seat selection for both Main Cabin and Premium Select fares on flights from Boston (BOS) to Trieste (TRS). For Main Cabin fares, advanced seat selection is available for purchase at the time of booking or can be selected for free at check-in. For Premium Select fares, advanced seat selection is included in the fare.

Reviews of the top airlines flying from Boston to Trieste

 
See real verified KAYAK customer reviews for airlines flying from Boston to Trieste. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Trieste? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.8
LufthansaOverall score based on 7959 reviews
7.6Crew
6.4Entertainment
7.0Boarding
6.8Comfort
6.3Food
Airline reviews

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

6.0 GoodDevasena, Apr 2026
ORD - FWA
Read more Lufthansa reviews

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Flight was canceled. Rebooked on Lufthansa Also Canceled. Had to pay 3000 more per person and fly Alaska to EWR and fly emirates to Athens.

Our flight was cancelled the day before our trip and we we put on a Turkish Airline flight that got us in half a day later.

Everything is smooth without canceling the flight or long delay. We're happy about it.

The flight I initially booked from Los Angeles to Florence. I made sure had a layover of about 90 minutes in Rome, so there’d be enough time to connect. A couple weeks before the flight for some reason I was updated that that flight had changed and I was only gonna have 60 minutes to connect. From LAX we were delayed by 45 minutes meaning making the connection was unlikely. The crew informed me that my connecting flight would not wait and they would rebook me on one four or five hours later. I wasn’t happy, but I accepted it. It is what it is. Except when we got closer, two separate flight attendant approached me eagerly and said they had great news that my connecting flight would in fact wait for me, but I needed to hurry through the airport so they didn’t have to wait too long. I was first off the flight. I ran about 4000 steps. And got through passport control all in under 15 minutes. When I arrived to my gate, I was greeted by a flight attendant there who was completely indifferent, said they didn’t hold the plane and they just closed the doors. Had they even held it for two minutes I would’ve made it. She simply told me that the flight attendant on my flight lied about the plane being held, and that they do it all the time. These were all employees of the same company ITA. I was absolutely livid at her indifference and having been lied to and then having to wait five hours and waste a day in Europe at an airport.

The flight was canceled and we have not received the refund

They lost my checked in bag and have not helped me.

First, ITA lost my bag and the baggage team showed no regard in trying to find it. Second, I had paid for priority boarding as part of a first class ticket and instead they disregarded boarding groups and we all boarded at the same time. Third, wasn't allowed to select my seat in advance even with a first class ticket. When I was assigned bulkhead, I was told I would need to pay to change my seat. Overall, very disappointing experience.

The seats needs to be spruced up , for a long flight very uncomfortable , cushions are worn out but everything else is very good , crew is great.

I guess that was fine with ITA but the Rome airport is so difficult to navigate with so many checkpoints getting new tickets from what was originally given to me

My seat was broken and ducted taped and my monitor did not work the entire time over 8 hrs sitting. And I had no books or anything with me

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

Information on your arrival and departure airports