$470+ Cheap flights from Colorado to Slovenia
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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LJU
Mar 3 — Mar 101
1 adult, Economy
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Find cheap flights from Colorado to Slovenia 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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Cheapest flights from Colorado to SloveniaExplore the most affordable flight options available from Colorado to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 1, 2026.
Explore the most affordable flight options available from Colorado to Slovenia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 1, 2026.
This Justfly.com deal was found by Cheapflights users on 1/30. 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 4/148:25 pm
DEN
- LJU
1 stop14h 55m
Turkish Airlines
Fri 5/18:15 pm
LJU
- DEN
1 stop30h 10m
Turkish Airlines
Deal found 1/30![Turkish Airlines logo]()
$715
This oojo deal was found by Cheapflights users on 1/31. 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.
Sat 2/287:20 pm
DEN
- LJU
1 stop15h 20m
Turkish Airlines
Sat 3/79:20 am
LJU
- DEN
1 stop16h 15m
Turkish Airlines
Deal found 1/31![Turkish Airlines logo]()
$739
This lol.travel deal was found by Cheapflights users on 1/31. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:20 pm
DEN
- LJU
1 stop15h 20m
Turkish Airlines
Wed 2/257:35 pm
LJU
- DEN
1 stop30h 00m
Turkish Airlines
Deal found 1/31![Turkish Airlines logo]()
$759
This Justfly.com deal was found by Cheapflights users on 1/30. 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.
Sat 5/28:25 pm
DEN
- LJU
1 stop28h 20m
Turkish Airlines
Sun 5/179:40 am
LJU
- DEN
1 stop16h 45m
Turkish Airlines
Deal found 1/30![Turkish Airlines logo]()
$818
This oojo deal was found by Cheapflights users on 1/30. 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.
Sat 8/228:25 pm
DEN
- LJU
1 stop14h 55m
Turkish Airlines
Sun 9/69:40 am
LJU
- DEN
1 stop16h 45m
Turkish Airlines
Deal found 1/30![Turkish Airlines logo]()
$853
This oojo deal was found by Cheapflights users on 1/30. 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.
Tue 4/1412:53 pm
DEN
- LJU
2 stops20h 22m
British Airways
Fri 5/19:15 pm
LJU
- DEN
1 stop27h 15m
British Airways
Deal found 1/30![British Airways logo]()
$857
This Mytrip deal was found by Cheapflights users on 1/31. 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.
Sat 2/283:40 pm
DEN
- LJU
3 stops33h 15m
Multiple Airlines
Sat 3/75:10 pm
LJU
- DEN
3 stops32h 55m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$865
This FlightHub deal was found by Cheapflights users on 1/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:25 pm
DEN
- LJU
1 stop14h 55m
Turkish Airlines
Sat 10/39:40 am
LJU
- DEN
1 stop16h 45m
Turkish Airlines
Deal found 1/30![Turkish Airlines logo]()
$870
This KAYAK deal was found by Cheapflights users on 1/30. 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 8/228:25 pm
DEN
- LJU
1 stop14h 55m
Turkish Airlines
Mon 9/71:50 pm
LJU
- DEN
1 stop36h 35m
Turkish Airlines
Deal found 1/30![Turkish Airlines logo]()
$897
This Emirates deal was found by Cheapflights users on 1/30. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/412:09 pm
COS
- LJU
2 stops41h 06m
Emirates
Sun 2/82:15 pm
LJU
- COS
2 stops39h 43m
Emirates
Deal found 1/30![Emirates logo]()
$1,868
Best flights from Colorado to SloveniaDiscover carefully curated flight deals from Colorado to Slovenia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 1, 2026.
Discover carefully curated flight deals from Colorado to Slovenia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 1, 2026.
This oojo deal was found by Cheapflights users on 1/31. 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.
Tue 4/148:25 pm
DEN
- LJU
1 stop14h 55m
Turkish Airlines
Fri 5/11:50 pm
LJU
- DEN
1 stop36h 35m
Turkish Airlines
Deal found 1/31![Turkish Airlines logo]()
$740
This oojo deal was found by Cheapflights users on 1/31. 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.
Tue 4/1412:53 pm
DEN
- LJU
2 stops20h 22m
British Airways
Fri 5/19:15 pm
LJU
- DEN
1 stop27h 15m
British Airways
Deal found 1/31![British Airways logo]()
$857
This Mytrip deal was found by Cheapflights users on 1/31. 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.
Sat 2/283:40 pm
DEN
- LJU
3 stops33h 15m
Multiple Airlines
Sat 3/75:10 pm
LJU
- DEN
3 stops32h 55m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$865
This lol.travel deal was found by Cheapflights users on 1/31. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:20 pm
DEN
- LJU
1 stop15h 20m
Turkish Airlines
Wed 2/257:35 pm
LJU
- DEN
1 stop30h 00m
Turkish Airlines
Deal found 1/31![Turkish Airlines logo]()
$759
This Justfly.com deal was found by Cheapflights users on 1/30. 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.
Sat 5/28:25 pm
DEN
- LJU
1 stop28h 20m
Turkish Airlines
Sun 5/179:40 am
LJU
- DEN
1 stop16h 45m
Turkish Airlines
Deal found 1/30![Turkish Airlines logo]()
$818
This oojo deal was found by Cheapflights users on 1/31. 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.
Sat 2/283:20 pm
DEN
- LJU
2 stops19h 20m
Turkish Airlines
Sat 3/79:20 am
LJU
- DEN
1 stop16h 15m
Turkish Airlines
Deal found 1/31![Turkish Airlines logo]()
$891
This oojo deal was found by Cheapflights users on 1/31. 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.
Thu 5/216:00 am
DEN
- LJU
2 stops22h 55m
Turkish Airlines
Sat 5/309:40 am
LJU
- DEN
1 stop16h 45m
Turkish Airlines
Deal found 1/31![Turkish Airlines logo]()
$953
Last-minute flights from Colorado to SloveniaDiscover last-minute flight deals from Colorado to Slovenia. Data last updated February 1, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Slovenia. Data last updated February 1, 2026 and is based on user searches.
This Emirates deal was found by Cheapflights users on 1/30. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/412:09 pm
COS
- LJU
2 stops41h 06m
Emirates
Sun 2/82:15 pm
LJU
- COS
2 stops39h 43m
Emirates
Deal found 1/30![Emirates logo]()
$1,868
This lol.travel deal was found by Cheapflights users on 1/31. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:20 pm
DEN
- LJU
1 stop15h 20m
Turkish Airlines
Wed 2/257:35 pm
LJU
- DEN
1 stop30h 00m
Turkish Airlines
Deal found 1/31![Turkish Airlines logo]()
$759
This Turkish Airlines deal was found by Cheapflights users on 1/31. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/123:20 pm
DEN
- LJU
2 stops33h 05m
Multiple Airlines
Wed 2/259:20 am
LJU
- DEN
2 stops21h 39m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$1,047
This KAYAK deal was found by Cheapflights users on 1/30. 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 2/1611:15 am
DEN
- LJU
2 stops14h 40m
Multiple Airlines
Mon 2/233:10 pm
LJU
- DEN
2 stops36h 38m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$1,082
This KAYAK deal was found by Cheapflights users on 1/30. 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 2/1611:15 am
DEN
- LJU
2 stops14h 40m
Lufthansa
Mon 2/238:10 pm
LJU
- DEN
1 stop30h 45m
Lufthansa
Deal found 1/30![Lufthansa logo]()
$1,098
This oojo deal was found by Cheapflights users on 1/31. 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.
Sat 2/287:20 pm
DEN
- LJU
1 stop15h 20m
Turkish Airlines
Sat 3/79:20 am
LJU
- DEN
1 stop16h 15m
Turkish Airlines
Deal found 1/31![Turkish Airlines logo]()
$739
This Mytrip deal was found by Cheapflights users on 1/31. 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.
Sat 2/283:40 pm
DEN
- LJU
3 stops33h 15m
Multiple Airlines
Sat 3/75:10 pm
LJU
- DEN
3 stops32h 55m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$865
One-way flights from Colorado to SloveniaSearch for one-way flight options from Colorado to Slovenia. Find affordable one-way fares based on user searches. Data last updated February 1, 2026.
Search for one-way flight options from Colorado to Slovenia. Find affordable one-way fares based on user searches. Data last updated February 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Thu 7/94:15 pm
DEN
- LJU
3 stops37h 05m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$470
This Kiwi.com deal was found by Cheapflights users on 1/30. 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 6/174:40 pm
DEN
- LJU
3 stops37h 45m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$514
This Kiwi.com deal was found by Cheapflights users on 1/30. 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.
Thu 6/184:40 pm
DEN
- LJU
3 stops36h 40m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$516
This Justfly.com deal was found by Cheapflights users on 1/31. 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.
Thu 7/98:25 pm
DEN
- LJU
1 stop14h 55m
Turkish Airlines
Deal found 1/31![Turkish Airlines logo]()
$541
This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Thu 6/2511:30 am
DEN
- LJU
3 stops18h 55m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$582
This Kiwi.com deal was found by Cheapflights users on 1/30. 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 7/34:40 pm
DEN
- LJU
3 stops22h 25m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$616
This oojo deal was found by Cheapflights users on 1/30. 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 5/86:30 pm
DEN
- LJU
2 stops42h 05m
British Airways
Deal found 1/30![British Airways logo]()
$630
This BusinessClass deal was found by Cheapflights users on 1/30. 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.
Fri 5/84:05 pm
DEN
- LJU
1 stop12h 30m
Lufthansa
Deal found 1/30![Lufthansa logo]()
$652
Find flight deals from Colorado to Slovenia
Keep the following information in mind while searching for Colorado to Slovenia flight deals. Data was last updated February 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $715 (Justfly.com) |
One-way from | $470 (Kiwi.com) |
Popular in | June |
Cheapest in | April |
Average price | $766 |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado to Slovenia 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 February 1, 2026.
Use the filters below to find and compare flights from Colorado to Slovenia that are best for you.
Fly from
Colorado
Fly to
Slovenia
Route
Depart
Return
Price
DenverLjubljana
DEN - LJU
DENLJU
Denver Intl
Tue 4/14
8:25 pm-7:20 pm
1 stop14h 55m
Ljubljana Joze Pucnik
Fri 5/1
1:50 pm-6:25 pm
1 stop36h 35m
$740
DenverLjubljana
DEN - LJU
DENLJU
Denver Intl
Thu 2/12
7:20 pm-6:40 pm
1 stop15h 20m
Ljubljana Joze Pucnik
Wed 2/25
7:35 pm-5:35 pm
1 stop30h 00m
$759
DenverLjubljana
DEN - LJU
DENLJU
Denver Intl
Sat 5/2
8:25 pm-8:45 am
1 stop28h 20m
Ljubljana Joze Pucnik
Sun 5/17
9:40 am-6:25 pm
1 stop16h 45m
$818
DenverLjubljana
DEN - LJU
DENLJU
Denver Intl
Tue 4/14
12:53 pm-5:15 pm
2 stops20h 22m
Ljubljana Joze Pucnik
Fri 5/1
9:15 pm-4:30 pm
1 stop27h 15m
$857
DenverLjubljana
DEN - LJU
DENLJU
Denver Intl
Sat 2/28
3:40 pm-8:55 am
3 stops33h 15m
Ljubljana Joze Pucnik
Sat 3/7
5:10 pm-6:05 pm
3 stops32h 55m
$865
DenverLjubljana
DEN - LJU
DENLJU
Denver Intl
Sat 2/28
3:20 pm-6:40 pm
2 stops19h 20m
Ljubljana Joze Pucnik
Sat 3/7
9:20 am-5:35 pm
1 stop16h 15m
$891
DenverLjubljana
DEN - LJU
DENLJU
Denver Intl
Thu 5/21
6:00 am-12:55 pm
2 stops22h 55m
Ljubljana Joze Pucnik
Sat 5/30
9:40 am-6:25 pm
1 stop16h 45m
$953
DenverLjubljana
DEN - LJU
DENLJU
Denver Intl
Thu 7/9
4:15 pm-1:20 pm
3 stops37h 05m
$470
DenverLjubljana
DEN - LJU
DENLJU
Denver Intl
Wed 6/17
4:40 pm-2:25 pm
3 stops37h 45m
$514
DenverLjubljana
DEN - LJU
DENLJU
Denver Intl
Thu 6/18
4:40 pm-1:20 pm
3 stops36h 40m
$516
Showing 1-10 of 15 results
Best time to book a flight from Colorado to Slovenia
Have a flexible travel schedule? Discover the best time to fly to Slovenia from Colorado with our price prediction graph.
DEN-LJU
COS-LJU
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.
Cheapflights Insights
Everything you need to know about your flight from Colorado to Slovenia
USCO-SI0
DEN-LJU
COS-LJU
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Colorado to Slovenia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Colorado to Slovenia
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from Colorado to Slovenia
Discover the top 2 airlines that operate flights from Colorado to Slovenia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$643 | Average$754 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$903 | Average$1,251 | FlexibilityNo cancel fee | On-time76% |