BOS - TRS

$475 Find Cheap Flights from Boston to Trieste

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Trieste departing on 3/11. 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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41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$475
Multiple Airlines
Wed 3/11Mon 3/16
BOS - TRS • 1 stop
Cheapest one-way
$633
Multiple Airlines
Thu 6/11
BOS - TRS • 2 stops
Top airlines
Lufthansa
Cheapest • from $476 (round-trip)
Lufthansa
Best reviews • 6.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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, Mar 11 - Mon, Mar 16
Multiple Airlines Logo
5:25 pm - 2:05 pm
BOS
-
TRS
15h 40m
1 stop
Multiple Airlines Logo
2:40 pm - 7:12 pm
TRS
-
BOS
33h 32m
2 stops
$475Multiple Airlines
Tue, Feb 10 - Thu, Feb 26
Lufthansa Logo
4:15 pm - 2:00 pm
BOS
-
TRS
15h 45m
1 stop
Lufthansa Logo
6:15 am - 1:35 pm
TRS
-
BOS
13h 20m
1 stop
$476Lufthansa
Tue, Feb 10 - Tue, Feb 24
Lufthansa Logo
2:20 pm - 2:00 pm
BOS
-
TRS
17h 40m
2 stops
Lufthansa Logo
6:15 am - 1:35 pm
TRS
-
BOS
13h 20m
1 stop
$480Lufthansa
Thu, Feb 26 - Tue, Mar 3
Multiple Airlines Logo
8:40 pm - 10:30 pm
BOS
-
TRS
19h 50m
2 stops
Multiple Airlines Logo
2:40 pm - 10:02 am
TRS
-
BOS
25h 22m
2 stops
$484Multiple Airlines
Tue, Feb 10 - Tue, Feb 24
Lufthansa Logo
2:20 pm - 2:00 pm
BOS
-
TRS
17h 40m
2 stops
Lufthansa Logo
6:15 am - 7:08 pm
TRS
-
BOS
18h 53m
2 stops
$490Lufthansa
Wed, Mar 11 - Mon, Mar 16
Lufthansa Logo
5:25 pm - 2:05 pm
BOS
-
TRS
15h 40m
1 stop
Lufthansa Logo
2:40 pm - 2:10 pm
TRS
-
BOS
28h 30m
1 stop
$495Lufthansa
Tue, Feb 10 - Mon, Feb 23
Lufthansa Logo
4:15 pm - 2:00 pm
BOS
-
TRS
15h 45m
1 stop
Lufthansa Logo
2:40 pm - 1:35 pm
TRS
-
BOS
28h 55m
1 stop
$497Lufthansa
Tue, Feb 10 - Mon, Feb 23
Lufthansa Logo
2:20 pm - 2:00 pm
BOS
-
TRS
17h 40m
2 stops
Lufthansa Logo
2:40 pm - 1:35 pm
TRS
-
BOS
28h 55m
1 stop
$501Lufthansa
Thu, Feb 26 - Tue, Mar 3
Multiple Airlines Logo
10:45 am - 10:30 pm
BOS
-
TRS
29h 45m
2 stops
Multiple Airlines Logo
6:15 am - 1:10 pm
TRS
-
BOS
12h 55m
1 stop
$509Multiple Airlines
Wed, Mar 11 - Mon, Mar 16
Lufthansa Logo
9:40 pm - 10:40 pm
BOS
-
TRS
20h 00m
2 stops
Lufthansa Logo
2:40 pm - 7:35 pm
TRS
-
BOS
33h 55m
2 stops
$510Lufthansa
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.

Which airlines provide the cheapest flights from Boston to Trieste?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Boston to Trieste were found on Lufthansa ($476) and Icelandair ($670).

Good to know

Low seasonNovember
Cheapest flight$475
Best time to beat the crowds with an average 54% drop in price.
Most popular time to fly and prices are also 18% lower on average.
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 $633 for a one-way ticket and $475 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 $690 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 $837 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 7758 reviews
6.8Comfort
6.5Entertainment
7.6Crew
7.0Boarding
6.3Food
Airline reviews

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

10.0 ExcellentGretchen, Jan 2026
SFO - FRA
Read more Lufthansa reviews

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

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

my flight from Rome to Boston was on a very old plane. My video and audio did not work.

Good with timing of flights. The crew was exceptionally unfriendly. I heard more than one person say this. And even with the aisle, it seemed more uncomfortable than usual. The movie selection was old and poor, but the dinner was great - the lasagna and tiramisu.

The check in process is chaotic. It says partially checked-in. Never heard of such a thing. Then lost our reserved seats when we finally checked in at the airport. The seats don’t recline. Then we had to get mew boarding passes at the connection. Last, my companion lost her baggage and up to now there’s no update. We’re already half-way through our vacation and still no news what happened to the luggage.

Wonderful! Everyone very helpful and kind. Returning flight was cancelled but rebooking was easy.

Pretty normal flight was delayed due to traffic could have missed connecting flight to Venice but crew kept us well informed so we made it

Flight was on time and pretty standard. No Hiccups. I have no complaints, which is a lot to say about a 12 hour flight.

-The seats could be roomier -The entertainment in English could be more current! The moves were very old!!! -They served too many carbs! What happened to fruit and yogurt!!!!

We upgraded to premium economy and it made a difference in a 12 hr flight. I didn’t like that we had to deplane in the tarmac with our carryon luggage. Other than that, it was ok.

Everything was much better than I had expected, since I hadn’t heard of your airline before. I hope to take advantage of your excellent service again.

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

Information on your arrival and departure airports