DEN - ZAG

$611 Find Cheap Flights from Denver to Zagreb

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Zagreb departing on 9/20. 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.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Zagreb

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Zagreb, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Zagreb, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Denver to Zagreb (DEN-ZAG)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Zagreb that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Zagreb

Sun, Nov 30 - Thu, Feb 26
Lufthansa Logo
5:45 pm - 10:25 pmDEN-ZAG
20h 40m1 stop
Lufthansa Logo
6:15 am - 4:00 pmZAG-DEN
17h 45m1 stop
$637Lufthansa
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Mon, Sep 15 - Mon, Sep 22
 Logo
9:40 am - 7:10 pmDEN-ZAG
25h 30m2 stops
 Logo
5:50 am - 6:18 pmZAG-DEN
20h 28m2 stops
Mon, Sep 15 - Mon, Sep 22
 Logo
7:55 pm - 7:10 pmDEN-ZAG
15h 15m1 stop
 Logo
5:50 am - 5:59 pmZAG-DEN
20h 09m1 stop
Sat, Sep 27 - Fri, Oct 10
Turkish Airlines Logo
7:50 pm - 7:25 pmDEN-ZAG
15h 35m1 stop
Turkish Airlines Logo
9:35 am - 5:55 pmZAG-DEN
16h 20m1 stop
$776Turkish Airlines
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Tue, Sep 23 - Mon, Oct 6
British Airways Logo
11:29 am - 12:05 pmDEN-ZAG
16h 36m2 stops
British Airways Logo
2:40 pm - 3:54 pmZAG-DEN
33h 14m2 stops
$788British Airways
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Sat, Oct 11 - Sun, Oct 19
British Airways Logo
6:35 pm - 1:50 pmDEN-ZAG
35h 15m1 stop
British Airways Logo
10:45 am - 3:53 pmZAG-DEN
37h 08m2 stops
$808British Airways
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Tue, Sep 2 - Tue, Sep 16
Iberia Logo
10:35 am - 6:45 pmDEN-ZAG
24h 10m2 stops
Iberia Logo
7:30 pm - 4:25 pmZAG-DEN
28h 55m2 stops
$989Iberia
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Thu, Sep 18 - Mon, Sep 29
United Airlines Logo
5:59 pm - 11:40 pmDEN-ZAG
21h 41m1 stop
United Airlines Logo
3:00 pm - 1:35 pmZAG-DEN
30h 35m1 stop
$1,059United Airlines
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Sat, Sep 27 - Sat, Oct 11
Turkish Airlines Logo
7:50 pm - 12:50 pmDEN-ZAG
33h 00m1 stop
Turkish Airlines Logo
2:00 pm - 10:00 pmZAG-DEN
40h 00m2 stops
$1,069Turkish Airlines
Find Deal
Fri, Sep 19 - Mon, Sep 29
United Airlines Logo
8:20 pm - 11:40 pmDEN-ZAG
19h 20m2 stops
United Airlines Logo
3:00 pm - 6:18 pmZAG-DEN
35h 18m2 stops
$1,081United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Denver to Zagreb flights

Get data-powered insights and trends into flights from Denver to Zagreb to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Denver to Zagreb?

The average price of all round-trip flights from Denver to Zagreb clicked on KAYAK for each day over the last 12 months.

When flying from Denver to Zagreb, you should consider leaving on a Sunday and avoid Saturdays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Tuesdays and the most expensive ones on Wednesdays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Zagreb, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Zagreb is March, where tickets cost $674 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,229 and $1,157 respectively.

How far in advance should I book a flight from Denver to Zagreb?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Zagreb, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Zagreb, you should book around 2 weeks before departure, which saves you about 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$611
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Denver to Zagreb

When to book flights from Denver to Zagreb

Are your dates flexible? Find out the best times to travel from Denver to Zagreb based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Zagreb

  • What is the cheapest flight from Denver to Zagreb?

    In the last 3 days, the lowest price for a flight from Denver to Zagreb was $611 for a one-way ticket and $637 for a round-trip.

  • Do I need a passport to fly between Denver and Zagreb?

    Yes

  • Which aircraft models fly most regularly from Denver to Zagreb?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Zagreb?

    Star Alliance, and oneworld are the airline alliances operating flights between Denver and Zagreb, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Denver to Zagreb, United Airlines or Turkish Airlines?

    The two airlines most popular with KAYAK users for flights from Denver to Zagreb are United Airlines and Turkish Airlines. With an average price for the route of $888 and an overall rating of 7.4, United Airlines is the most popular choice. Turkish Airlines is also a great choice for the route, with an average price of $669 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Denver to Zagreb?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Zagreb.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Zagreb?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Zagreb from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Zagreb?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Zagreb with an airline and back to Denver with another airline. Booking your flights between Denver and ZAG can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Zagreb?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Zagreb from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Denver to Zagreb

 
See real verified KAYAK customer reviews for airlines flying from Denver to Zagreb. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Zagreb? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8905 reviews
6.6Food
7.3Comfort
7.0Entertainment
8.1Crew
7.7Boarding
Airline reviews

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

10.0 ExcellentAnonymous, Jun 2025DEN - BOS
Read more United Airlines reviews

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

The seat and leg room was not good. The food and beverage service was good.

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

No food service almost missed because of first flight delays

Bough tickets with luggage, but made me pay at Airport as well

The economy seat was so uncomfortable, had not enough leg room for 13 hours flight, front seat basket was broken and couldn’t hold anything, food quality was horrible( we got food poisoned ) we charged for logged which used to be free. We paid too much for this flight and very disappointed. Turkish air line better to make satisfy and respect people instead of find different way to scam people.

This is really the rating of two flights. JFK to IST then IST to NQZ. New York to Istanbul was good. Good crew and all positives. The flight to Astana was so bad that brought it all down. Crew was nonexistent above the minimum, seats were cramped, and it was hot on the plane. Turkish Airlines seems to be slipping down to US based carriers level.

The 2 agents on the check in counter were super nice , helpful and very polite. Boarding was like a 1 2 3, I would recommend Turkish airlines for your next trip.

Everything was very good, except that the plane was an hour and a half late

flight with heavy turbulence old boeing 777 rest wasnt clean dashboard doesn’t work

Light and recline did not work on my seat. Very uncomfortable and could not read in the dark

Bad experience; they are not good anymore. They charge too much for luggage seat are so uncomfortable, Flight delays which may miss your next flight, they don’t care if you miss the flight or not. Zero customer services for front desk representatives Istanbul's airport I’m not using this airline any more.

I’ve been traveling for 20 years. I tried Turkish airline for the first time horrible horrible service and it would be my last time even if I get offer for a free ticket, I will not accept it. They have races and the worst Flight attendant

It wasn't good. I didn’t understand. They changed 320 dollars for 2 luggage. My ticket was regular and I paid almost 1200.00 dollars. Why they did charge? I want my money back.. thanks Yılmaz polat

Our flight was delayed for over an hour due to weather, and it had already been a long travel day. However, the crew was calm and compassionate, listening to every complaint with genuine concern. They got us home safely without incident, in spite of all of the obstacles. I’m grateful.

Hate their old flights, boatding, food and services. Very poor quality

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

The food could be better, more snacks. And have some plugs to chargue the phone.

The pasta in the evening meal was tasteless. Otherwise, the flight was okay.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Seating was average for a first class seat. It very modern. I expected better.

Flight was a little late. The crew was courteous, food ok

Bad! Disaster!! The LH419 was cancelled after 4 hrs on board with no AC and no toilets

Poor food on flight between Toronto and Stockholm Airport Toronto too crowded

Everything you need to know for your flight from Denver to Zagreb

Information on your arrival and departure airports

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