$464 Cheap Flights from Boise (BOI) to Trieste (TRS)

View $464 flight on Mon, Jan 19, 2026Opens in a new window

Popular airlines from Boise Airport (BOI) to Friuli Venezia Giulia Airport (TRS)

Cheap Flights from Boise to Trieste (BOI-TRS)

Prices were available within the past 7 days and start at $464 for one-way flights and $553 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Jan 17 - Sat, Jan 24
BOI
Boise
TRS
Trieste
$553 Roundtrip, found 2 days ago
$553
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jan 17 from Boise to Trieste, returning Sat, Jan 24, priced at $553 found 2 days ago
Lufthansa
Sat, Jan 17 - Sat, Jan 24
BOI
Boise
TRS
Trieste
$554 Roundtrip, found 2 days ago
$554
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sat, Jan 17 from Boise to Trieste, returning Sat, Jan 24, priced at $554 found 2 days ago
United
Thu, Dec 4 - Wed, Dec 24
BOI
Boise
TRS
Trieste
$557 Roundtrip, found 3 days ago
$557
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 4 from Boise to Trieste, returning Wed, Dec 24, priced at $557 found 3 days ago
United
Thu, Dec 4 - Tue, Dec 23
BOI
Boise
TRS
Trieste
$571 Roundtrip, found 3 days ago
$571
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 4 from Boise to Trieste, returning Tue, Dec 23, priced at $571 found 3 days ago
United
Sat, Jan 17 - Sun, Jan 25
BOI
Boise
TRS
Trieste
$572 Roundtrip, found 2 days ago
$572
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jan 17 from Boise to Trieste, returning Sun, Jan 25, priced at $572 found 2 days ago
United
Sat, Jan 31 - Sun, Feb 15
BOI
Boise
TRS
Trieste
$574 Roundtrip, found 3 days ago
$574
Roundtrip
found 3 days ago
Select United flight, departing Sat, Jan 31 from Boise to Trieste, returning Sun, Feb 15, priced at $574 found 3 days ago
United
Sat, Jan 17 - Sat, Jan 24
BOI
Boise
TRS
Trieste
$578 Roundtrip, found 2 days ago
$578
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jan 17 from Boise to Trieste, returning Sat, Jan 24, priced at $578 found 2 days ago
United
Sat, Jan 17 - Sat, Jan 24
BOI
Boise
TRS
Trieste
$579 Roundtrip, found 2 days ago
$579
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jan 17 from Boise to Trieste, returning Sat, Jan 24, priced at $579 found 2 days ago
United
Sun, Feb 15 - Tue, Mar 3
BOI
Boise
TRS
Trieste
$603 Roundtrip, found 3 days ago
$603
Roundtrip
found 3 days ago
Select United flight, departing Sun, Feb 15 from Boise to Trieste, returning Tue, Mar 3, priced at $603 found 3 days ago
KLM
Wed, Jan 14 - Wed, Jan 21
BOI
Boise
TRS
Trieste
$625 Roundtrip, found 2 days ago
$625
Roundtrip
found 2 days ago
Select KLM flight, departing Wed, Jan 14 from Boise to Trieste, returning Wed, Jan 21, priced at $625 found 2 days ago

Frequently asked questions

How much does a flight from Boise Airport (BOI) to Friuli Venezia Giulia Airport (TRS) cost?
Get a cheap one-way flight from $464 or cheap return flight from $553 from Boise Airport (BOI) to Friuli Venezia Giulia Airport (TRS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Boise Airport (BOI) to Friuli Venezia Giulia Airport (TRS)?
Planning your getaway for January is a great way to save, as it's the cheapest month for flights between BOI and TRS. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Boise Airport (BOI) to Friuli Venezia Giulia Airport (TRS)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from BOI to TRS. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Boise Airport (BOI) to Friuli Venezia Giulia Airport (TRS)?
There are no daily nonstop flights available from Boise Airport (BOI) to Friuli Venezia Giulia Airport (TRS). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from BOI to TRS?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boise Airport (BOI) to Friuli Venezia Giulia Airport (TRS)?
To touch down at Friuli Venezia Giulia Airport (TRS) on time, pick a flight that leaves from Boise Airport (BOI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Boise Airport (BOI) to Friuli Venezia Giulia Airport (TRS) last-minute?
Last-minute fares from BOI to TRS are usually more expensive. For the best prices, start looking for flights early. That said, if you can play around with your travel dates, you may score a cheap ticket right before your journey.
Is it cheaper to book a BOI to TRS flight and hotel package?
Securing a BOI to TRS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Pick from our impressive range of hotels and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Friuli Venezia Giulia Airport (TRS)?
If you booked your BOI to TRS flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Boise
Destination airport
Friuli Venezia Giulia
Roundtrip price
$553
Distance
5534 mi

Book with confidence

Boise to Trieste Flights

The cheapest times to fly from Boise to Trieste

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boise to Trieste are during the month of January. You can find some of the cheapest flights from Boise to Trieste with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to Trieste

Sunday is one of the best days to book for cheap flights from Boise to Trieste: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boise to Trieste

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boise to Trieste in 2025. You can also book with separate airlines for your outbound and return journeys, from $464 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boise to Trieste flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boise to Trieste airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boise to Trieste Flights

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*Available to One Key members.