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Cheap flights from Denver to Trieste from $808

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Trieste departing on 4/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Denver to Trieste

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:25 pm - 1:45 pm
DEN
-
TRS
16h 20m
2 stops
Multiple Airlines Logo
2:45 pm - 1:35 pm
TRS
-
DEN
30h 50m
1 stop
$808Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
KLM Logo
10:25 am - 6:30 pm
DEN
-
TRS
24h 05m
2 stops
KLM Logo
3:15 pm - 7:42 pm
TRS
-
DEN
36h 27m
2 stops
$825KLM
Tue, Apr 7 - Tue, Apr 14
Lufthansa Logo
5:40 pm - 10:15 pm
DEN
-
TRS
20h 35m
1 stop
Lufthansa Logo
2:45 pm - 3:40 pm
TRS
-
DEN
32h 55m
1 stop
$846Lufthansa
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
4:40 pm - 8:00 pm
DEN
-
TRS
19h 20m
2 stops
Multiple Airlines Logo
7:15 pm - 7:00 pm
TRS
-
DEN
31h 45m
3 stops
$925Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
4:40 pm - 10:15 pm
DEN
-
TRS
21h 35m
3 stops
Multiple Airlines Logo
3:15 pm - 7:00 pm
TRS
-
DEN
35h 45m
3 stops
$1,106Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
8:53 pm - 1:55 pm
DEN
-
TRS
33h 02m
2 stops
Multiple Airlines Logo
6:00 am - 11:12 pm
TRS
-
DEN
25h 12m
2 stops
$1,262Multiple Airlines
Wed, Jun 17 - Thu, Jul 2
Multiple Airlines Logo
9:40 am - 7:40 pm
DEN
-
TRS
26h 00m
3 stops
Multiple Airlines Logo
11:15 am - 12:40 pm
TRS
-
DEN
33h 25m
2 stops
$1,276Multiple Airlines
Wed, Jun 17 - Thu, Jul 2
Multiple Airlines Logo
5:40 pm - 10:25 pm
DEN
-
TRS
20h 45m
1 stop
Multiple Airlines Logo
6:00 am - 7:00 pm
TRS
-
DEN
21h 00m
2 stops
$1,278Multiple Airlines
Wed, Jun 17 - Fri, Jul 3
Multiple Airlines Logo
4:05 pm - 10:25 pm
DEN
-
TRS
22h 20m
2 stops
Multiple Airlines Logo
6:00 am - 7:00 pm
TRS
-
DEN
21h 00m
2 stops
$1,296Multiple Airlines
Wed, Jun 17 - Fri, Jul 3
Lufthansa Logo
3:55 pm - 10:25 pm
DEN
-
TRS
22h 30m
1 stop
Lufthansa Logo
6:00 am - 1:30 pm
TRS
-
DEN
15h 30m
1 stop
$1,341Lufthansa
Wed, Jun 17 - Thu, Jul 2

Lufthansa flights from Denver to Trieste

Our best Lufthansa deals on Denver to Trieste flight tickets
Lufthansa
Apr 7
DEN5:40 pmDenver Intl
20h 35m
1 stop
TRS10:15 pmTrieste Ronchi dei Legionari
Apr 14
TRS2:45 pmTrieste Ronchi dei Legionari
32h 55m
1 stop
DEN3:40 pmDenver Intl
$846
Lufthansa
Jun 17
DEN3:55 pmDenver Intl
22h 30m
1 stop
TRS10:25 pmTrieste Ronchi dei Legionari
Jul 3
TRS6:00 amTrieste Ronchi dei Legionari
15h 30m
1 stop
DEN1:30 pmDenver Intl
$1,341
Lufthansa
Jun 17
DEN3:55 pmDenver Intl
22h 30m
1 stop
TRS10:25 pmTrieste Ronchi dei Legionari
Jul 2
TRS2:40 pmTrieste Ronchi dei Legionari
17h 50m
2 stops
DEN12:30 amDenver Intl
$1,394

ITA Airways flights from Denver to Trieste

Our best ITA Airways deals on Denver to Trieste flight tickets
ITA Airways
Mar 4
DEN8:00 amDenver Intl
18h 25m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Mar 8
TRS6:35 amTrieste Ronchi dei Legionari
20h 05m
2 stops
DEN6:40 pmDenver Intl
$1,601
ITA Airways
Mar 4
DEN8:00 amDenver Intl
18h 25m
2 stops
TRS10:25 amTrieste Ronchi dei Legionari
Mar 8
TRS6:35 amTrieste Ronchi dei Legionari
20h 05m
2 stops
DEN6:40 pmDenver Intl
$2,021

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Trieste that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 24, 2026.
Use the filters below to find and compare flights from Denver to Trieste that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Tue 4/7

1:25 pm-1:45 pm

2 stops16h 20m

Trieste Ronchi dei Legionari

Tue 4/14

2:45 pm-1:35 pm

1 stop30h 50m

$808

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Tue 4/7

10:25 am-6:30 pm

2 stops24h 05m

Trieste Ronchi dei Legionari

Tue 4/14

3:15 pm-7:42 pm

2 stops36h 27m

$825

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Tue 4/7

5:40 pm-10:15 pm

1 stop20h 35m

Trieste Ronchi dei Legionari

Tue 4/14

2:45 pm-3:40 pm

1 stop32h 55m

$846

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Tue 4/7

4:40 pm-8:00 pm

2 stops19h 20m

Trieste Ronchi dei Legionari

Tue 4/14

7:15 pm-7:00 pm

3 stops31h 45m

$925

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Tue 4/7

4:40 pm-10:15 pm

3 stops21h 35m

Trieste Ronchi dei Legionari

Tue 4/14

3:15 pm-7:00 pm

3 stops35h 45m

$1,106

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Wed 6/17

8:53 pm-1:55 pm

2 stops33h 02m

Trieste Ronchi dei Legionari

Thu 7/2

6:00 am-11:12 pm

2 stops25h 12m

$1,262

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Wed 6/17

9:40 am-7:40 pm

3 stops26h 00m

Trieste Ronchi dei Legionari

Thu 7/2

11:15 am-12:40 pm

2 stops33h 25m

$1,276

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Wed 6/17

5:40 pm-10:25 pm

1 stop20h 45m

Trieste Ronchi dei Legionari

Fri 7/3

6:00 am-7:00 pm

2 stops21h 00m

$1,278

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Wed 6/17

4:05 pm-10:25 pm

2 stops22h 20m

Trieste Ronchi dei Legionari

Fri 7/3

6:00 am-7:00 pm

2 stops21h 00m

$1,296

DenverTrieste

DEN - TRS

DENTRS

Denver Intl

Wed 6/17

3:55 pm-10:25 pm

1 stop22h 30m

Trieste Ronchi dei Legionari

Thu 7/2

6:00 am-1:30 pm

1 stop15h 30m

$1,341

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Denver to Trieste

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Denver to Trieste flights?

You could potentially save up to 58% on your flight if you consider stops on a Denver to Trieste flight.

When to book flights from Denver to Trieste

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Trieste according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Trieste (DEN to TRS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Trieste

Fastest flight time

20h 45m

Direct flights

None
The fastest flight from Denver to Trieste takes 20h 45m
There are no direct flights from Denver to Trieste. There are no popular flight routes from Denver to Trieste.
Search flight deals

  • How far is Denver Intl to Trieste Ronchi dei Legionari by plane?

    The distance between Denver Intl and Trieste Ronchi dei Legionari is about 5423.3 mi. By plane, this route typically takes 20h 45m.

  • When did momondo last update prices for flights from Denver Intl Airport to Trieste Ronchi dei Legionari Airport?

    Prices for flights from Denver Intl Airport to Trieste Ronchi dei Legionari Airport are updated daily.

  • How old do you have to be to fly from Denver Intl Airport to Trieste Ronchi dei Legionari Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Trieste Ronchi dei Legionari Airport.

  • What documentation or ID do you need to fly to Trieste Ronchi dei Legionari Airport?

    The travel and health documents required for your trip to Trieste Ronchi dei Legionari Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Trieste Ronchi dei Legionari Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Trieste?

Book flights to Trieste if you plan to visit one of these locations
Udine
Grado

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Trieste?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Trieste from Denver.

Can I find flights from Denver to Trieste with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Trieste from Denver with this policy.

How can momondo help me find flights from Denver to Trieste?

Once you have performed a search for Denver to Trieste flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Denver to Trieste right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Denver to Trieste flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Trieste trip

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Fly your favorite airline to Trieste

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
United Airlines
Lufthansa
British Airways
Turkish Airlines
SWISS
Delta
American Airlines
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