$305+ Cheap flights from Denver (DEN) to Trieste (TRS)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — TRS
Jul 28 — Aug 41
Round-trip
1 adult, Economy
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Find cheap flights from Denver to Trieste with Cheapflights
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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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Best
Last-minute
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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 June 28, 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 June 28, 2026.
This Condor deal was found by Cheapflights users on 6/27. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:15 am
DEN
- TRS
2 stops29h 10m
Multiple Airlines
Wed 8/196:10 am
TRS
- DEN
2 stops23h 10m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$971
This KAYAK deal was found by Cheapflights users on 6/27. 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.
Sat 9/58:00 am
DEN
- TRS
2 stops30h 55m
ITA Airways
Sun 9/2011:15 am
TRS
- DEN
2 stops42h 01m
ITA Airways
Deal found 6/27![ITA Airways logo]()
$1,001
This Cheapflightsfares deal was found by Cheapflights users on 6/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:40 pm
DEN
- TRS
1 stop20h 35m
Lufthansa
Wed 9/96:10 am
TRS
- DEN
1 stop17h 30m
Lufthansa
Deal found 6/24![Lufthansa logo]()
$1,009
This Gotogate deal was found by Cheapflights users on 6/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:40 pm
DEN
- TRS
1 stop12h 20m
Lufthansa
Wed 8/192:40 pm
TRS
- DEN
1 stop33h 00m
Lufthansa
Deal found 6/27![Lufthansa logo]()
$1,017
This United deal was found by Cheapflights users on 6/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:40 pm
DEN
- TRS
1 stop20h 35m
Multiple Airlines
Wed 9/96:10 am
TRS
- DEN
1 stop15h 25m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$1,031
This Mytrip deal was found by Cheapflights users on 6/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:40 pm
DEN
- TRS
2 stops22h 15m
Multiple Airlines
Sun 8/1611:15 am
TRS
- DEN
2 stops33h 25m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$1,032
This Cheapflightsfares deal was found by Cheapflights users on 6/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:40 pm
DEN
- TRS
1 stop20h 15m
Lufthansa
Fri 9/46:10 am
TRS
- DEN
1 stop17h 30m
Lufthansa
Deal found 6/25![Lufthansa logo]()
$1,042
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 June 28, 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 June 28, 2026.
This Condor deal was found by Cheapflights users on 6/27. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:15 am
DEN
- TRS
2 stops29h 10m
Multiple Airlines
Wed 8/196:10 am
TRS
- DEN
2 stops23h 10m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$971
This Cheapflightsfares deal was found by Cheapflights users on 6/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:40 pm
DEN
- TRS
1 stop20h 35m
Lufthansa
Wed 9/96:10 am
TRS
- DEN
1 stop17h 30m
Lufthansa
Deal found 6/24![Lufthansa logo]()
$1,009
This KAYAK deal was found by Cheapflights users on 6/27. 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.
Fri 8/216:00 am
DEN
- TRS
2 stops28h 30m
ITA Airways
Sat 9/57:15 pm
TRS
- DEN
2 stops31h 00m
ITA Airways
Deal found 6/27![ITA Airways logo]()
$1,042
This United Airlines deal was found by Cheapflights users on 6/24. 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 12/69:35 am
DEN
- TRS
2 stops16h 50m
United Airlines
Thu 12/106:35 am
TRS
- DEN
2 stops42h 03m
United Airlines
Deal found 6/24![United Airlines logo]()
$1,181
This Gotogate deal was found by Cheapflights users on 6/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:40 pm
DEN
- TRS
1 stop12h 20m
Lufthansa
Wed 8/192:40 pm
TRS
- DEN
1 stop33h 00m
Lufthansa
Deal found 6/27![Lufthansa logo]()
$1,017
This United deal was found by Cheapflights users on 6/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:40 pm
DEN
- TRS
1 stop20h 35m
Multiple Airlines
Wed 9/96:10 am
TRS
- DEN
1 stop15h 25m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$1,031
This Cheapflightsfares deal was found by Cheapflights users on 6/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:40 pm
DEN
- TRS
1 stop20h 15m
Lufthansa
Sat 9/56:15 am
TRS
- DEN
1 stop17h 25m
Lufthansa
Deal found 6/27![Lufthansa logo]()
$1,099
This Expedia deal was found by Cheapflights users on 6/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2311:30 am
DEN
- TRS
2 stops18h 25m
Multiple Airlines
Mon 7/276:10 am
TRS
- DEN
2 stops26h 20m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$1,155
This Booking.com deal was found by Cheapflights users on 6/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:40 pm
DEN
- TRS
1 stop12h 15m
Lufthansa
Mon 7/272:50 pm
TRS
- DEN
2 stops36h 55m
Lufthansa
Deal found 6/24![Lufthansa logo]()
$1,111
This United deal was found by Cheapflights users on 6/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:55 pm
DEN
- TRS
1 stop22h 20m
Multiple Airlines
Sat 9/192:45 pm
TRS
- DEN
1 stop30h 50m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$1,170
This Cheapflightsfares deal was found by Cheapflights users on 6/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:40 pm
DEN
- TRS
1 stop20h 35m
Lufthansa
Sun 9/206:10 am
TRS
- DEN
2 stops15h 35m
Lufthansa
Deal found 6/27![Lufthansa logo]()
$1,155
Last-minute flights from Denver to TriesteDiscover last-minute flight deals from Denver to Trieste. Data last updated June 28, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Trieste. Data last updated June 28, 2026 and is based on user searches.
This lastminute.com deal was found by Cheapflights users on 6/25. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:40 pm
DEN
- TRS
1 stop12h 15m
Lufthansa
Mon 7/272:50 pm
TRS
- DEN
2 stops36h 55m
Lufthansa
Deal found 6/25![Lufthansa logo]()
$1,082
This Expedia deal was found by Cheapflights users on 6/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2311:30 am
DEN
- TRS
2 stops18h 25m
Multiple Airlines
Mon 7/276:10 am
TRS
- DEN
2 stops26h 20m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$1,155
This oojo deal was found by Cheapflights users on 6/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:02 am
DEN
- TRS
2 stops28h 28m
Multiple Airlines
Fri 7/316:35 am
TRS
- DEN
2 stops25h 24m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$1,157
This Expedia deal was found by Cheapflights users on 6/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/245:40 pm
DEN
- TRS
1 stop20h 15m
Lufthansa
Fri 7/316:10 am
TRS
- DEN
2 stops26h 20m
Lufthansa
Deal found 6/26![Lufthansa logo]()
$1,199
This United Airlines deal was found by Cheapflights users on 6/26. 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.
Fri 7/246:00 am
DEN
- TRS
2 stops20h 25m
United Airlines
Fri 7/316:35 am
TRS
- DEN
2 stops21h 47m
United Airlines
Deal found 6/26![United Airlines logo]()
$1,427
One-way flights from Denver to TriesteSearch for one-way flight options from Denver to Trieste. Find affordable one-way fares based on user searches. Data last updated June 28, 2026.
Search for one-way flight options from Denver to Trieste. Find affordable one-way fares based on user searches. Data last updated June 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:40 pm
DEN
- TRS
2 stops38h 45m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:40 pm
DEN
- TRS
3 stops37h 40m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:40 pm
DEN
- TRS
2 stops22h 40m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/224:40 pm
DEN
- TRS
3 stops33h 55m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/74:40 pm
DEN
- TRS
2 stops19h 55m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/114:40 pm
DEN
- TRS
2 stops19h 35m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:40 pm
DEN
- TRS
2 stops32h 30m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$391
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 June 28, 2026.
Round-trip from | $969 (Condor) |
|---|---|
One-way from | $305 (Kiwi.com) |
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 2,558,603 searches. Data last updated June 28, 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 - TRS
DENTRS
Denver Intl
Wed 8/12
9:15 am-10:25 pm
2 stops29h 10m
Trieste Ronchi dei Legionari
Wed 8/19
6:10 am-9:20 pm
2 stops23h 10m
$971
DenverTrieste
DEN - TRS
DENTRS
Denver Intl
Tue 9/1
5:40 pm-10:15 pm
1 stop20h 35m
Trieste Ronchi dei Legionari
Wed 9/9
6:10 am-3:40 pm
1 stop17h 30m
$1,009
DenverTrieste
DEN - TRS
DENTRS
Denver Intl
Wed 8/12
5:40 pm-2:00 pm
1 stop12h 20m
Trieste Ronchi dei Legionari
Wed 8/19
2:40 pm-3:40 pm
1 stop33h 00m
$1,017
Quickest round-trip
DenverTrieste
DEN - TRS
DENTRS
Denver Intl
Tue 9/1
5:40 pm-10:15 pm
1 stop20h 35m
Trieste Ronchi dei Legionari
Wed 9/9
6:10 am-1:35 pm
1 stop15h 25m
$1,031
DenverTrieste
DEN - TRS
DENTRS
Denver Intl
Fri 8/21
6:00 am-6:30 pm
2 stops28h 30m
Trieste Ronchi dei Legionari
Sat 9/5
7:15 pm-6:15 pm
2 stops31h 00m
$1,042
DenverTrieste
DEN - TRS
DENTRS
Denver Intl
Fri 8/21
5:40 pm-9:55 pm
1 stop20h 15m
Trieste Ronchi dei Legionari
Sat 9/5
6:15 am-3:40 pm
1 stop17h 25m
$1,099
DenverTrieste
DEN - TRS
DENTRS
Denver Intl
Thu 7/23
5:40 pm-1:55 pm
1 stop12h 15m
Trieste Ronchi dei Legionari
Mon 7/27
2:50 pm-7:45 pm
2 stops36h 55m
$1,111
DenverTrieste
DEN - TRS
DENTRS
Denver Intl
Thu 7/23
11:30 am-1:55 pm
2 stops18h 25m
Trieste Ronchi dei Legionari
Mon 7/27
6:10 am-12:30 am
2 stops26h 20m
$1,155
DenverTrieste
DEN - TRS
DENTRS
Denver Intl
Sat 9/5
5:40 pm-10:15 pm
1 stop20h 35m
Trieste Ronchi dei Legionari
Sun 9/20
6:10 am-1:45 pm
2 stops15h 35m
$1,155
DenverTrieste
DEN - TRS
DENTRS
Denver Intl
Sat 9/5
3:55 pm-10:15 pm
1 stop22h 20m
Trieste Ronchi dei Legionari
Sat 9/19
2:45 pm-1:35 pm
1 stop30h 50m
$1,170
Showing 1-10 of 18 resultsSorted 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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