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Cheap flights from Denver (DEN) to Ljubljana (LJU) from $780

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 11/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
DEN — LJU
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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Cheap flight deals from Denver to Ljubljana

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Ljubljana (LJU). 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 May 16, 2024.

Popular in

June

Cheapest in

February

Average price

$1,489

Round-trip from

$550
High demand for flights, 30% potential price rise
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Best time to find cheap flights, 33% potential price drop
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Average for round-trip flights in May 2024
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From Denver Intl to Ljubljana Joze Pucnik
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What is the cheapest day to fly round-trip from Denver to Ljubljana?

Monday is generally a great day to depart. Flying on this day could help you save up to 35%.

What is the cheapest month to fly from Denver to Ljubljana?

February can be a great time to fly to Ljubljana from Denver with a flight ticket averaging about $1,143. Cheapflights users have found deals in the month of February for as cheap as $769. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from Denver to Ljubljana (DEN - LJU)?

It’s optimal to fly from Denver to Ljubljana in the afternoon. By choosing this option you can save up to 23% on the cost of your flight, compared to a flight in the evening.

Cheap Lufthansa flights from Denver to Ljubljana

Explore cheap flight options specifically provided by Lufthansa for the route between Denver and Ljubljana. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Check out some of the cheapest Lufthansa flights we've come across from Denver to Ljubljana. It's recommended that users confirm their flight details before booking.
Thu 10/174:05 pmDEN - LJU
1 stop19h 00mLufthansa
Sat 10/2611:10 amLJU - DEN
1 stop12h 30mLufthansa
Deal found 5/15$939
Mon 9/164:05 pmDEN - LJU
1 stop19h 00mLufthansa
Tue 10/17:40 pmLJU - DEN
1 stop26h 40mLufthansa
Deal found 5/15$958
Wed 9/44:05 pmDEN - LJU
1 stop19h 00mLufthansa
Wed 9/187:45 pmLJU - DEN
1 stop26h 35mLufthansa
Deal found 5/14$981
Wed 9/410:15 amDEN - LJU
2 stops24h 50mLufthansa
Wed 9/187:45 pmLJU - DEN
1 stop26h 35mLufthansa
Deal found 5/14$994
Mon 9/24:05 pmDEN - LJU
1 stop12h 20mLufthansa
Wed 9/187:45 pmLJU - DEN
1 stop26h 35mLufthansa
Deal found 5/14$1,014
Wed 9/44:05 pmDEN - LJU
1 stop19h 00mLufthansa
Tue 9/1711:10 amLJU - DEN
1 stop12h 30mLufthansa
Deal found 5/14$1,040
Sat 9/144:05 pmDEN - LJU
1 stop19h 00mLufthansa
Sun 9/227:40 pmLJU - DEN
1 stop26h 40mLufthansa
Deal found 5/15$1,048
Wed 9/45:35 pmDEN - LJU
1 stop11h 45mLufthansa
Fri 9/206:55 amLJU - DEN
1 stop16h 45mLufthansa
Deal found 5/14$1,050
Mon 9/24:05 pmDEN - LJU
1 stop12h 20mLufthansa
Sun 9/157:40 pmLJU - DEN
1 stop26h 40mLufthansa
Deal found 5/14$1,064

Cheap Delta flights from Denver to Ljubljana

Explore cheap flight options specifically provided by Delta for the route between Denver and Ljubljana. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Browse through some of the cheapest Delta flights traveling from Denver to Ljubljana. Make sure to examine the flight information before completing your reservation.
Thu 10/178:37 amDEN - LJU
2 stops22h 28mDelta
Sat 10/263:50 pmLJU - DEN
1 stop32h 50mDelta
Deal found 5/15$951
Thu 10/176:00 amDEN - LJU
2 stops25h 05mDelta
Sat 10/263:50 pmLJU - DEN
2 stops33h 42mDelta
Deal found 5/15$961
Sun 9/15:45 pmDEN - LJU
1 stop13h 20mDelta
Tue 9/173:50 pmLJU - DEN
2 stops27h 00mDelta
Deal found 5/14$995
Sun 9/15:45 pmDEN - LJU
1 stop13h 20mDelta
Thu 9/193:50 pmLJU - DEN
1 stop31h 45mDelta
Deal found 5/14$996
Sun 9/16:15 amDEN - LJU
2 stops24h 50mDelta
Wed 9/183:50 pmLJU - DEN
2 stops26h 44mDelta
Deal found 5/14$999
Tue 9/36:35 amDEN - LJU
2 stops24h 30mDelta
Tue 9/173:50 pmLJU - DEN
1 stop31h 45mDelta
Deal found 5/14$1,000
Sun 9/15:45 pmDEN - LJU
1 stop13h 20mDelta
Mon 9/163:50 pmLJU - DEN
2 stops33h 02mDelta
Deal found 5/14$1,006
Sun 9/16:15 amDEN - LJU
2 stops24h 50mDelta
Mon 9/163:50 pmLJU - DEN
2 stops33h 02mDelta
Deal found 5/14$1,010
Sun 9/15:45 pmDEN - LJU
1 stop13h 20mDelta
Sat 9/213:50 pmLJU - DEN
2 stops27h 00mDelta
Deal found 5/14$1,045

Cheap Denver to Ljubljana flights in May & June 2024

Find cheap flight options from Denver to Ljubljana specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
The lowest fares we've come across on flights traveling from Denver to Ljubljana in May and June 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Sun 5/196:35 pmDEN - LJU
1 stop31h 05mMultiple Airlines
Thu 5/236:55 pmLJU - DEN
2 stops53h 26mMultiple Airlines
Deal found 5/15$1,030
Sun 5/196:35 pmDEN - LJU
1 stop31h 05mMultiple Airlines
Fri 5/246:45 pmLJU - DEN
2 stops47h 17mMultiple Airlines
Deal found 5/15$1,110
Thu 6/277:35 pmDEN - LJU
1 stop15h 35mTurkish Airlines
Mon 7/88:05 pmLJU - DEN
1 stop29h 35mTurkish Airlines
Deal found 5/16$1,115
Fri 6/287:35 pmDEN - LJU
1 stop15h 35mTurkish Airlines
Mon 7/88:05 pmLJU - DEN
1 stop29h 35mTurkish Airlines
Deal found 5/16$1,132
Tue 6/257:35 pmDEN - LJU
1 stop15h 35mTurkish Airlines
Mon 7/88:05 pmLJU - DEN
1 stop29h 35mTurkish Airlines
Deal found 5/16$1,145
Sun 6/235:55 pmDEN - LJU
1 stop32h 00mSWISS
Tue 7/97:15 pmLJU - DEN
1 stop29h 10mSWISS
Deal found 5/16$1,173
Wed 6/54:05 pmDEN - LJU
1 stop12h 20mLufthansa
Wed 6/197:45 pmLJU - DEN
1 stop26h 35mLufthansa
Deal found 5/15$1,183
Mon 6/245:55 pmDEN - LJU
1 stop16h 35mSWISS
Tue 7/97:15 pmLJU - DEN
1 stop29h 10mSWISS
Deal found 5/16$1,186
Tue 6/257:35 pmDEN - LJU
1 stop15h 35mTurkish Airlines
Tue 7/98:50 amLJU - DEN
1 stop16h 50mTurkish Airlines
Deal found 5/16$1,187

Denver to Ljubljana 2024 flight deals

Discover exclusive flight deals for travel between Denver and Ljubljana in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
The lowest fares we've come across on flights traveling from Denver to Ljubljana in May and June 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Fri 11/294:25 pmDEN - LJU
1 stop12h 00mLufthansa
Tue 12/36:55 amLJU - DEN
1 stop17h 10mLufthansa
Deal found 5/15$780
Fri 11/2910:25 amDEN - LJU
2 stops15h 40mLufthansa
Tue 12/36:55 amLJU - DEN
1 stop17h 10mLufthansa
Deal found 5/14$784
Fri 11/2911:15 amDEN - LJU
2 stops14h 50mLufthansa
Tue 12/36:55 amLJU - DEN
1 stop17h 10mLufthansa
Deal found 5/15$785
Fri 11/2911:15 amDEN - LJU
2 stops14h 50mLufthansa
Tue 12/310:40 amLJU - DEN
2 stops16h 21mLufthansa
Deal found 5/14$794
Fri 11/2911:15 amDEN - LJU
2 stops14h 50mLufthansa
Tue 12/310:40 amLJU - DEN
2 stops16h 21mLufthansa
Deal found 5/15$795
Thu 10/174:05 pmDEN - LJU
1 stop19h 00mLufthansa
Sat 10/2611:10 amLJU - DEN
1 stop12h 30mLufthansa
Deal found 5/15$939
Thu 10/178:37 amDEN - LJU
2 stops22h 28mDelta
Sat 10/263:50 pmLJU - DEN
1 stop32h 50mDelta
Deal found 5/16$951
Mon 9/164:05 pmDEN - LJU
1 stop19h 00mLufthansa
Tue 10/17:40 pmLJU - DEN
1 stop26h 40mLufthansa
Deal found 5/15$958
Thu 10/174:25 pmDEN - LJU
2 stops18h 40mMultiple Airlines
Sat 10/261:00 pmLJU - DEN
2 stops17h 46mMultiple Airlines
Deal found 5/16$959

Denver to Ljubljana flights leaving soon

Find last-minute flight options from Denver to Ljubljana for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Consider one of these great deals we found on last-minute flights from Denver to Ljubljana. Users should examine the flight details to ensure there are no surprises.
Wed 5/224:05 pmDEN - LJU
1 stop19h 00mLufthansa
Fri 5/317:40 pmLJU - DEN
1 stop30h 55mLufthansa
Deal found 5/16$7,863
Wed 5/224:05 pmDEN - LJU
1 stop12h 20mLufthansa
Fri 5/311:00 pmLJU - DEN
2 stops18h 59mLufthansa
Deal found 5/16$7,864
Wed 5/2211:20 amDEN - LJU
2 stops17h 05mLufthansa
Fri 5/311:00 pmLJU - DEN
2 stops18h 59mLufthansa
Deal found 5/16$7,868
Wed 5/225:55 pmDEN - LJU
1 stop32h 00mSWISS
Fri 5/3110:40 amLJU - DEN
1 stop13h 40mSWISS
Deal found 5/15$8,085
Wed 5/2211:20 amDEN - LJU
2 stops18h 55mSWISS
Fri 5/3110:40 amLJU - DEN
1 stop13h 40mSWISS
Deal found 5/15$8,089
Wed 5/2211:20 amDEN - LJU
2 stops18h 55mSWISS
Fri 5/3110:40 amLJU - DEN
2 stops19h 14mSWISS
Deal found 5/15$8,099

One-way flights to Ljubljana from Denver

Search for one-way flight options from Denver to Ljubljana. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Some of the best available deals we've found on one-way flights from Denver to Ljubljana. Users needing a return flight from Denver to Ljubljana should utilize the search form above.
Sun 6/235:55 pmDEN - LJU
1 stop32h 00mSWISS
Deal found 5/16$1,045
Sun 6/234:05 pmDEN - LJU
2 stops22h 05mLufthansa
Deal found 5/15$1,094
Sat 6/226:35 pmDEN - LJU
1 stop18h 05mBritish Airways
Deal found 5/16$1,180
Sat 6/229:01 amDEN - LJU
2 stops27h 39mBritish Airways
Deal found 5/15$1,198
Sat 6/225:33 pmDEN - LJU
2 stops44h 37mLufthansa
Deal found 5/16$1,232
Sat 6/224:05 pmDEN - LJU
1 stop12h 20mLufthansa
Deal found 5/15$1,357
Sun 6/2310:40 amDEN - LJU
3 stops19h 45mMultiple Airlines
Deal found 5/15$2,331

Find flights from Denver to Ljubljana within your budget

Customize your flight search to find flights from Denver to Ljubljana 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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$939 - $1,564

Route

Depart

Return

Price

Denver IntlLjubljana Joze Pucnik

DEN - LJU

DENLJU

Denver Intl

Thu 10/17

1 stop19h 00m

Ljubljana Joze Pucnik

Sat 10/26

1 stop12h 30m

$939

Denver IntlLjubljana Joze Pucnik

DEN - LJU

DENLJU

Denver Intl

Thu 10/17

2 stops22h 28m

Ljubljana Joze Pucnik

Sat 10/26

1 stop32h 50m

$951

Denver IntlLjubljana Joze Pucnik

DEN - LJU

DENLJU

Denver Intl

Mon 9/16

1 stop19h 00m

Ljubljana Joze Pucnik

Tue 10/1

1 stop26h 40m

$958

Denver IntlLjubljana Joze Pucnik

DEN - LJU

DENLJU

Denver Intl

Thu 10/17

2 stops18h 40m

Ljubljana Joze Pucnik

Sat 10/26

2 stops17h 46m

$959

Denver IntlLjubljana Joze Pucnik

DEN - LJU

DENLJU

Denver Intl

Fri 8/23

1 stop28h 20m

Ljubljana Joze Pucnik

Mon 9/9

1 stop29h 35m

$975

Denver IntlLjubljana Joze Pucnik

DEN - LJU

DENLJU

Denver Intl

Wed 8/14

1 stop12h 20m

Ljubljana Joze Pucnik

Wed 8/28

2 stops43h 14m

$980

Denver IntlLjubljana Joze Pucnik

DEN - LJU

DENLJU

Denver Intl

Mon 9/16

1 stop13h 20m

Ljubljana Joze Pucnik

Tue 10/1

2 stops20h 10m

$997

Denver IntlLjubljana Joze Pucnik

DEN - LJU

DENLJU

Denver Intl

Mon 9/2

1 stop13h 40m

Ljubljana Joze Pucnik

Wed 9/18

2 stops36h 04m

$1,176

Denver IntlLjubljana Joze Pucnik

DEN - LJU

DENLJU

Denver Intl

Tue 6/25

2 stops19h 01m

Ljubljana Joze Pucnik

Sun 7/7

1 stop16h 55m

$1,564

Flights are sorted by cheapest first

Deals found on 5/15

When is the cheapest time to fly from Denver to Ljubljana?

Use this chart to determine the cheapest time to fly round-trip from Denver to Ljubljana. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Denver to Ljubljana flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Ljubljana by month

Plan your trip from Denver to Ljubljana by taking into account the cheapest months to travel. The average price of a one-way flight from Denver to Ljubljana is currently $1,348 while a round-trip flight costs $1,055. Price data was last updated on May 12, 2024.

Currently, December is the cheapest month in which you can book a flight from Denver to Ljubljana (average of $550). Flying from Denver to Ljubljana in June is currently the most expensive (average of $1,552). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$705

February

$710

March

$821

April

$849

May

$1,013

June

$1,552

July

$1,183

August

$971

September

$996

October

$781

November

$706

December

$550

Temperature and rainfall in Ljubljana by month

Plan your trip to Ljubljana by taking into account the average temperature and rainfall totals by month.

LJU

Temperature

30.2 - 66.2 °F

Reviews of airlines servicing Ljubljana

Get insights into the airlines that provide service to Ljubljana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ljubljana. Reviews last updated May 16, 2024.
Read through reviews of airlines operating flights from Denver to Ljubljana, such as Lufthansa, Delta and Turkish Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,673 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,568 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
1,994 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.6
Good
1,764 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Turkish Airlines
7.4
Good
3,707 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Food

7.4

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Denver to Ljubljana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Denver to Ljubljana for under $1,000 on Cheapflights?

    Yes, there are multiple flights from Denver to Ljubljana for under $1,000. The cheapest flight booked recently is on Lufthansa for just $939, but on average you can expect to pay $981.

  • Are there last-minute flights available from Denver to Ljubljana for under $7,900?

    There are currently 6+ open flights from Denver to Ljubljana within the next 7 days for less than $7,900.

  • What are the cheapest airlines flying from Denver to Ljubljana round-trip?

    Cheapflights users have booked flights from Denver to Ljubljana round-trip from $939. Other airlines that can offer you cheap pricing are Delta, from $951, and Turkish Airlines, from $975. You may be able to fly from Denver to Ljubljana for 17% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Denver to Ljubljana one-way?

    $1,045 is the cheapest one-way deal found within the past few days, from SWISS. You may also be able to find cheap deals on Lufthansa and British Airways, with prices starting from $1,094 and $1,180, respectively.

  • What are the most popular airlines that fly from Denver to Ljubljana?

    The most popular airlines flying from Denver to Ljubljana are Air France, Lufthansa and SWISS. Something to consider prior to booking your flight.

  • What does DEN to LJU mean?

    Denver Intl Airport is DEN and Ljubljana Joze Pucnik Airport is LJU. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Denver to Ljubljana that include extra baggage allowance?

    The amount of baggage you can bring on your Denver to Ljubljana flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Denver to Ljubljana with specific airlines?

    Yes, Cheapflights allows you to browse and filter Denver to Ljubljana flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Denver to Ljubljana that include hotel bookings?

    Yes. In addition to deals on Denver to Ljubljana flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Ljubljana?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Ljubljana.

  • Can I find deals for business class flights from Denver to Ljubljana?

    Yes. Cheapflights offers flight deals from Denver to Ljubljana by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Denver to Ljubljana that allow pets onboard?

    Many airlines flying from Denver to Ljubljana offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Denver to Ljubljana?

    Yes, you can often find last-minute deals on Denver to Ljubljana flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Denver to Ljubljana flight deals updated?

    The Denver to Ljubljana flight deals you see on this page were last updated on 5/16.

See more FAQs

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Alternative routes for Denver to Ljubljana
See prices for flight routes from nearby airports that may be better suited for you.

Colorado Springs to Ljubljana flights

Top 3 airlines flying from Denver to Ljubljana

Discover the top 3 airlines that operate flights from Denver to Ljubljana. 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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$792Average$1,239FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest$1,004Average$1,252FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air FranceCheapest$1,101Average$1,106FlexibilityNo cancel feeOn-time77%
Search Air France flights
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Search flights from Denver to Ljubljana by cabin class

Find flights from Denver to Ljubljana, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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