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Denver to Sydney flights take around 20 to 26 hours with one connection. The distance between Denver and Sydney sits at roughly 8,350 miles (13,438 kilometers), and no airline currently operates direct service on this route.\n\nMost travelers fly out of Denver's main airport (DEN), which has daily connecting flights to Sydney. \n\nConnecting flights typically route through Los Angeles, San Francisco or Auckland. Flight times vary based on your layover duration and which airline you pick.
Connecting flights from Denver to Sydney run about 20 to 26 hours depending on your routing. United Airlines and Qantas operate the most frequent connections on this route. Flying via Los Angeles or San Francisco tends to offer the shortest total travel time.
Layovers in hub cities typically last 2 to 4 hours. Longer connections can push total travel time past the average, but sometimes those tickets cost $200 to $400 less than the shorter itineraries. Worth checking both options.
Sydney is 18 hours ahead of Denver. Plan your arrival accordingly to minimize jet lag.
Most flights depart Denver in the afternoon or evening for long-haul destinations. Booking at least 6 to 8 weeks out usually gets you the best fares. October and November tend to be cheaper months to fly this route since it's between peak summer travel and the winter holiday rush.
How long is the flight from Denver to Sydney?
The flight from Denver to Sydney takes around 20 to 26 hours with one connection. Total travel time depends on your layover city and duration.
How far is it from Denver to Sydney?
The distance from Denver to Sydney is approximately 8,350 miles (13,438 kilometers). This long-haul route crosses multiple time zones.
What is the time difference between Denver and Sydney?
Sydney is 18 hours ahead of Denver. Plan your arrival time accordingly to help adjust to the local schedule.
Are there direct flights from Denver to Sydney?
No, there are no direct flights from Denver to Sydney as of 2025. All flights require at least one connection, typically through major hub cities like Los Angeles, San Francisco.
Which airlines fly from Denver to Sydney?
United Airlines, Qantas, American Airlines, Air New Zealand, Delta Air Lines operate connecting service from Denver to Sydney. United Airlines has the most weekly departures on this route.
Planning beyond this route? Explore more flight times, distances, and travel durations using our tools below. Start with our Flight Time Calculator to estimate journey times worldwide, or browse average travel times from your departure city using the Denver Flight Times.
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