Denver (DEN) → Zagreb (ZAG)
About Denver to Zagreb Flights
Discover the best flights from Denver to Zagreb, covering 8,821 km in approximately 11h 32m. Denver (DEN) to Zagreb (ZAG) is one of the major long-haul routes connecting United States and Croatia. With 7 major airlines operating this route, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Denver to Zagreb.
12-Month Price History
Flight prices from Denver to Zagreb vary significantly throughout the year. February typically offers the best deals with average prices around $1437, while July sees the highest prices, averaging $2378. Savvy travelers can save up to 40% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
161 days
For best prices
Booking Tips
For the best prices on Denver to Zagreb flights, we recommend booking 142 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
Frontier Airlines F9 | $1580 | - | - |
Southwest Airlines WN | $1760 | - | - |
American Airlines AA | $2320 | $9280 | $12400 |
SkyWest Airlines OO | $2630 | $8100 | $14790 |
Croatia Airlines OU | $2750 | $7440 | $13340 |
United Airlines UA | $2780 | $9020 | $13950 |
Delta Air Lines DL | $2940 | $9260 | $13740 |
Frontier Airlines
F9
Economy
$1580
Business
-
First
-
Southwest Airlines
WN
Economy
$1760
Business
-
First
-
American Airlines
AA
Economy
$2320
Business
$9280
First
$12400
SkyWest Airlines
OO
Economy
$2630
Business
$8100
First
$14790
Croatia Airlines
OU
Economy
$2750
Business
$7440
First
$13340
United Airlines
UA
Economy
$2780
Business
$9020
First
$13950
Delta Air Lines
DL
Economy
$2940
Business
$9260
First
$13740
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Denver → Ljubljana
Denver International (DEN) to Ljubljana Jože Pučnik (LJU)
Distance: 8,697 km
Average price: $1826
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Frequently Asked Questions
How long is the flight from Denver to Zagreb?
The flight time from Denver (DEN) to Zagreb (ZAG) is approximately 11 hours and 32 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between Denver and Zagreb?
The aerial distance between Denver and Zagreb is 8,821 kilometers (5,481 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Denver to Zagreb?
Several airlines operate flights between Denver and Zagreb, including United Airlines, Southwest Airlines, Frontier Airlines and 4 more airlines. Most flights on this route include one or more stops.
What is the cheapest month to fly from Denver to Zagreb?
Based on historical data, February typically offers the lowest airfares for flights from Denver to Zagreb. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Zagreb?
For the best prices on Denver to Zagreb flights, we recommend booking 103 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from Denver to Zagreb?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to Croatia should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Denver and Zagreb?
Denver operates on America/Denver time zone, while Zagreb is in the Europe/Zagreb time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.