$667 Cheap Flights from Trieste (TRS) to Denver (DEN)

View $667 flight on Mon, May 11, 2026Opens in a new window

Popular airlines from Friuli Venezia Giulia Airport (TRS) to Denver Intl. Airport (DEN)

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Cheap Flights from Trieste to Denver (TRS-DEN)

Prices were available within the past 7 days and start at $667 for one-way flights and $889 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Tue, Jan 27 - Tue, Feb 3
TRS
Trieste
DEN
Denver
$889 Roundtrip, found 4 days ago
$889
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Jan 27 from Trieste to Denver, returning Tue, Feb 3, priced at $889 found 4 days ago
Lufthansa
Tue, Jan 27 - Tue, Feb 3
TRS
Trieste
DEN
Denver
$899 Roundtrip, found 4 days ago
$899
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Jan 27 from Trieste to Denver, returning Tue, Feb 3, priced at $899 found 4 days ago
Lufthansa
Mon, Mar 30 - Fri, Apr 10
TRS
Trieste
DEN
Denver
$901 Roundtrip, found 3 hours ago
$901
Roundtrip
found 3 hours ago
Select Lufthansa flight, departing Mon, Mar 30 from Trieste to Denver, returning Fri, Apr 10, priced at $901 found 3 hours ago
Lufthansa
Tue, Jan 27 - Tue, Feb 3
TRS
Trieste
DEN
Denver
$906 Roundtrip, found 4 days ago
$906
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Jan 27 from Trieste to Denver, returning Tue, Feb 3, priced at $906 found 4 days ago
Lufthansa
Tue, Jan 27 - Tue, Feb 3
TRS
Trieste
DEN
Denver
$907 Roundtrip, found 4 days ago
$907
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Jan 27 from Trieste to Denver, returning Tue, Feb 3, priced at $907 found 4 days ago
Lufthansa
Tue, Jan 27 - Tue, Feb 3
TRS
Trieste
DEN
Denver
$910 Roundtrip, found 4 days ago
$910
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Jan 27 from Trieste to Denver, returning Tue, Feb 3, priced at $910 found 4 days ago
Lufthansa
Mon, Mar 30 - Fri, Apr 10
TRS
Trieste
DEN
Denver
$912 Roundtrip, found 3 hours ago
$912
Roundtrip
found 3 hours ago
Select Lufthansa flight, departing Mon, Mar 30 from Trieste to Denver, returning Fri, Apr 10, priced at $912 found 3 hours ago
Lufthansa
Tue, Jan 27 - Tue, Feb 3
TRS
Trieste
DEN
Denver
$912 Roundtrip, found 4 days ago
$912
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Jan 27 from Trieste to Denver, returning Tue, Feb 3, priced at $912 found 4 days ago
Air Dolomiti
Mon, Mar 30 - Fri, Apr 10
TRS
Trieste
DEN
Denver
$924 Roundtrip, found 3 hours ago
$924
Roundtrip
found 3 hours ago
Select Air Dolomiti flight, departing Mon, Mar 30 from Trieste to Denver, returning Fri, Apr 10, priced at $924 found 3 hours ago
ITA Airways
Mon, Mar 30 - Fri, Apr 10
TRS
Trieste
DEN
Denver
$1,262 Roundtrip, found 3 hours ago
$1,262
Roundtrip
found 3 hours ago
Select ITA Airways flight, departing Mon, Mar 30 from Trieste to Denver, returning Fri, Apr 10, priced at $1,262 found 3 hours ago
Flights from Trieste (TRS) to Denver (DEN)
Origin airport
Friuli Venezia Giulia
Destination airport
Denver Intl.
Airlines serving
ITA Airways, Lufthansa
Roundtrip price
$889
Distance
5392 mi

Trieste to Denver Flights

The cheapest times to fly from Trieste to Denver

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 Trieste to Denver are during the month of January. You can find some of the cheapest flights from Trieste to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Trieste to Denver

Sunday is one of the best days to book for cheap flights from Trieste to Denver: 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 Trieste to Denver

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 Trieste to Denver in 2026. You can also book with separate airlines for your outbound and return journeys, from $667 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 Trieste to Denver 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 Trieste to Denver 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.

 

Frequently asked questions

How much does a flight from Friuli Venezia Giulia Airport (TRS) to Denver Intl. Airport (DEN) cost?
Secure a cheap one-way flight from $667 or cheap return flight from $889 from Friuli Venezia Giulia Airport (TRS) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Friuli Venezia Giulia Airport (TRS) to Denver Intl. Airport (DEN)?
Planning your getaway for January may help you find better deals, as it's the cheapest month for flights between TRS and DEN. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Friuli Venezia Giulia Airport (TRS) to Denver Intl. Airport (DEN)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest TRS to DEN flight.
How many flights per day from Friuli Venezia Giulia Airport (TRS) to Denver Intl. Airport (DEN)?
You'll need to book a flight with a layover if you're traveling from Friuli Venezia Giulia Airport (TRS) to Denver Intl. Airport (DEN). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from TRS to DEN?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on a range of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Friuli Venezia Giulia Airport (TRS) to Denver Intl. Airport (DEN)?
Choose a flight from Friuli Venezia Giulia Airport (TRS) to Denver Intl. Airport (DEN) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time have a 22% higher chance of being canceled, on average.**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 Friuli Venezia Giulia Airport (TRS) to Denver Intl. Airport (DEN) last-minute?
Booking your ticket from TRS to DEN right before your journey is generally more expensive. But if there's some wiggle room with your travel times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a TRS to DEN flight and hotel package?
Booking a TRS to DEN flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of accommodations and then add activities, flights and car rentals 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 Friuli Venezia Giulia Airport (TRS) to Denver Intl. Airport (DEN)?
If you booked your TRS to DEN flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.