$971+ Cheap flights from Denver (DEN) to Trieste (TRS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — TRS
Oct 24 — Oct 311
Round-trip
1 adult, Economy
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Find cheap flights from Denver to Trieste with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Denver to TriesteExplore the most affordable flight options available from Denver to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
Explore the most affordable flight options available from Denver to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
This KLM deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/191:25 pm -
2 stops25h 30m
Thu 10/293:15 pm -
2 stops39h 29m
Deal found 9/19![KLM logo]()
$1,151
This BusinessClass deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:40 pm -
1 stop20h 45m
Thu 10/2911:15 am -
1 stop14h 15m
Deal found 9/19![Multiple Airlines logo]()
$1,283
This BusinessClass deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:55 pm -
1 stop22h 20m
Fri 10/306:35 am -
1 stop18h 55m
Deal found 9/19![Multiple Airlines logo]()
$1,305
This KAYAK deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/193:55 pm -
1 stop14h 00m
Sat 10/3111:15 am -
2 stops35h 15m
Deal found 9/19![Lufthansa logo]()
$1,331
This Orbitz deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:40 pm -
1 stop20h 35m
Fri 10/303:15 pm -
2 stops55h 15m
Deal found 9/19![Lufthansa logo]()
$1,337
This Ovago deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:35 am -
2 stops18h 25m
Thu 10/296:35 am -
1 stop18h 55m
Deal found 9/19![Multiple Airlines logo]()
$1,417
This BusinessClass deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:15 am -
2 stops15h 10m
Thu 10/2911:15 am -
1 stop14h 15m
Deal found 9/19![Multiple Airlines logo]()
$1,490
This Justfly.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:00 am -
2 stops18h 25m
Sat 10/317:15 pm -
2 stops32h 15m
Deal found 9/19![ITA Airways logo]()
$1,494
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/69:50 am -
2 stops16h 35m
Wed 12/96:35 am -
2 stops21h 52m
Deal found 9/22![United Airlines logo]()
$1,551
Best flights from Denver to TriesteDiscover carefully curated flight deals from Denver to Trieste that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
Discover carefully curated flight deals from Denver to Trieste that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
This KLM deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1010:45 am -
2 stops23h 45m
Wed 2/246:35 am -
2 stops21h 25m
Deal found 9/20![KLM logo]()
$971
This BusinessClass deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:40 pm -
1 stop20h 45m
Fri 10/306:35 am -
1 stop18h 55m
Deal found 9/19![Multiple Airlines logo]()
$1,283
This KAYAK deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:55 pm -
1 stop14h 05m
Sat 10/313:15 pm -
2 stops31h 15m
Deal found 9/19![Lufthansa logo]()
$1,331
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/69:50 am -
2 stops16h 35m
Wed 12/96:35 am -
2 stops21h 52m
Deal found 9/22![United Airlines logo]()
$1,551
This KLM deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:15 pm -
2 stops22h 15m
Thu 10/293:15 pm -
2 stops39h 29m
Deal found 9/19![KLM logo]()
$1,151
This KLM deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/201:25 pm -
2 stops21h 05m
Fri 10/306:35 am -
2 stops24h 09m
Deal found 9/19![KLM logo]()
$1,151
This KLM deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/191:25 pm -
2 stops25h 30m
Thu 10/293:15 pm -
2 stops39h 29m
Deal found 9/19![KLM logo]()
$1,151
Last-minute flights from Denver to TriesteDiscover last-minute flight deals from Denver to Trieste. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Trieste. Data last updated September 24, 2026 and is based on user searches.
This KLM deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:41 am -
2 stops23h 49m
Fri 10/306:35 am -
2 stops24h 09m
Deal found 9/19![KLM logo]()
$1,151
This BusinessClass deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:40 pm -
1 stop20h 45m
Thu 10/2911:15 am -
1 stop14h 15m
Deal found 9/19![Multiple Airlines logo]()
$1,283
This KAYAK deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/193:55 pm -
1 stop14h 00m
Sat 10/3111:15 am -
2 stops35h 15m
Deal found 9/19![Lufthansa logo]()
$1,331
This BusinessClass deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:55 pm -
1 stop22h 20m
Fri 10/306:35 am -
1 stop18h 55m
Deal found 9/19![Multiple Airlines logo]()
$1,305
This Orbitz deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:40 pm -
1 stop20h 35m
Fri 10/303:15 pm -
2 stops55h 15m
Deal found 9/19![Lufthansa logo]()
$1,337
This BusinessClass deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:15 am -
2 stops15h 10m
Thu 10/2911:15 am -
1 stop14h 15m
Deal found 9/19![Multiple Airlines logo]()
$1,490
This Justfly.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:00 am -
2 stops18h 25m
Sat 10/317:15 pm -
2 stops32h 15m
Deal found 9/19![ITA Airways logo]()
$1,494
This Lufthansa deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:55 pm -
1 stop22h 20m
Sat 10/316:35 am -
1 stop18h 55m
Deal found 9/19![Lufthansa logo]()
$1,682
This Ovago deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:35 am -
2 stops18h 25m
Thu 10/296:35 am -
1 stop18h 55m
Deal found 9/19![Multiple Airlines logo]()
$1,417
Find flight deals from Denver to Trieste
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Trieste (TRS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 24, 2026.
Round-trip from | $971 (KLM) |
|---|
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated September 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
Cheapest round-trip
DenverTrieste
DEN Denver Intl - TRS Trieste Ronchi dei Legionari
DENTRS
Denver Intl
Wed 2/10
10:45 am-6:30 pm
2 stops23h 45m
Trieste Ronchi dei Legionari
Wed 2/24
6:35 am-8:00 pm
2 stops21h 25m
$971
DenverTrieste
DEN Denver Intl - TRS Trieste Ronchi dei Legionari
DENTRS
Denver Intl
Tue 10/20
12:15 pm-6:30 pm
2 stops22h 15m
Trieste Ronchi dei Legionari
Thu 10/29
3:15 pm-11:44 pm
2 stops39h 29m
$1,151
DenverTrieste
DEN Denver Intl - TRS Trieste Ronchi dei Legionari
DENTRS
Denver Intl
Tue 10/20
1:25 pm-6:30 pm
2 stops21h 05m
Trieste Ronchi dei Legionari
Fri 10/30
6:35 am-11:44 pm
2 stops24h 09m
$1,151
DenverTrieste
DEN Denver Intl - TRS Trieste Ronchi dei Legionari
DENTRS
Denver Intl
Mon 10/19
1:25 pm-10:55 pm
2 stops25h 30m
Trieste Ronchi dei Legionari
Thu 10/29
3:15 pm-11:44 pm
2 stops39h 29m
$1,151
DenverTrieste
DEN Denver Intl - TRS Trieste Ronchi dei Legionari
DENTRS
Denver Intl
Wed 10/21
5:40 pm-10:25 pm
1 stop20h 45m
Trieste Ronchi dei Legionari
Fri 10/30
6:35 am-6:30 pm
1 stop18h 55m
$1,283
DenverTrieste
DEN Denver Intl - TRS Trieste Ronchi dei Legionari
DENTRS
Denver Intl
Wed 10/21
3:55 pm-2:00 pm
1 stop14h 05m
Trieste Ronchi dei Legionari
Sat 10/31
3:15 pm-3:30 pm
2 stops31h 15m
$1,331
Quickest round-trip
DenverTrieste
DEN Denver Intl - TRS Trieste Ronchi dei Legionari
DENTRS
Denver Intl
Sun 12/6
9:50 am-10:25 am
2 stops16h 35m
Trieste Ronchi dei Legionari
Wed 12/9
6:35 am-8:27 pm
2 stops21h 52m
$1,551
Sorted by cheapest first
Best time to book a flight from Denver to Trieste
Have a flexible travel schedule? Discover the best time to fly to Trieste from Denver with our price prediction graph.
DEN-TRS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
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