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$763 Cheap Flights from Denver (DEN) to Perth (PER)

View $763 flight on Mon, Sep 28, 2026Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Perth Airport (PER)

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Cheap Flights from Denver to Perth (DEN-PER)

Prices were available within the past 7 days and start at $763 for one-way flights and $1,550 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Sep 14 - Wed, Sep 23
DEN
Denver
PER
Perth
$1,550 Roundtrip, found 7 hours ago
$1,550
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Mon, Sep 14 from Denver to Perth, returning Wed, Sep 23, priced at $1,550 found 7 hours ago
American Airlines
Mon, Mar 8 - Fri, Mar 19
DEN
Denver
PER
Perth
$1,555 Roundtrip, found 1 day ago
$1,555
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Mar 8 from Denver to Perth, returning Fri, Mar 19, priced at $1,555 found 1 day ago
Air New Zealand
Thu, Apr 1 - Fri, Apr 30
DEN
Denver
PER
Perth
$1,584 Roundtrip, found 9 hours ago
$1,584
Roundtrip
found 9 hours ago
Select Air New Zealand flight, departing Thu, Apr 1 from Denver to Perth, returning Fri, Apr 30, priced at $1,584 found 9 hours ago
Cathay Pacific
Thu, Nov 5 - Mon, Nov 9
DEN
Denver
PER
Perth
$1,590 Roundtrip, found 15 hours ago
$1,590
Roundtrip
found 15 hours ago
Select Cathay Pacific flight, departing Thu, Nov 5 from Denver to Perth, returning Mon, Nov 9, priced at $1,590 found 15 hours ago
Cathay Pacific
Mon, Sep 14 - Wed, Sep 23
DEN
Denver
PER
Perth
$1,595 Roundtrip, found 7 hours ago
$1,595
Roundtrip
found 7 hours ago
Select Cathay Pacific flight, departing Mon, Sep 14 from Denver to Perth, returning Wed, Sep 23, priced at $1,595 found 7 hours ago
Cathay Pacific
Mon, Feb 1 - Mon, Feb 15
DEN
Denver
PER
Perth
$1,596 Roundtrip, found 1 day ago
$1,596
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Mon, Feb 1 from Denver to Perth, returning Mon, Feb 15, priced at $1,596 found 1 day ago
Cathay Pacific
Thu, Oct 1 - Sat, Oct 17
DEN
Denver
PER
Perth
$1,600 Roundtrip, found 1 day ago
$1,600
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Thu, Oct 1 from Denver to Perth, returning Sat, Oct 17, priced at $1,600 found 1 day ago
American Airlines
Thu, Apr 1 - Fri, Apr 30
DEN
Denver
PER
Perth
$1,600 Roundtrip, found 9 hours ago
$1,600
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Thu, Apr 1 from Denver to Perth, returning Fri, Apr 30, priced at $1,600 found 9 hours ago
Air Canada
Tue, Mar 9 - Mon, Mar 22
DEN
Denver
PER
Perth
$1,670 Roundtrip, found 9 hours ago
$1,670
Roundtrip
found 9 hours ago
Select Air Canada flight, departing Tue, Mar 9 from Denver to Perth, returning Mon, Mar 22, priced at $1,670 found 9 hours ago
Qatar Airways
Thu, Apr 1 - Fri, Apr 30
DEN
Denver
PER
Perth
$1,709 Roundtrip, found 9 hours ago
$1,709
Roundtrip
found 9 hours ago
Select Qatar Airways flight, departing Thu, Apr 1 from Denver to Perth, returning Fri, Apr 30, priced at $1,709 found 9 hours ago

Alternative airports near Perth

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Perth Airport PER. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $1,940
PER
Perth Airport
CheapestClosest
Average driving time to city center14 min
Flights from $1,940

What you need to know for your flight from Denver Intl. to Perth

Denver (DEN) to Perth (PER) at a glance

Explore a range of options for flights from Denver International Airport (DEN) to Perth Airport (PER) on this international long-haul journey. Whether you prefer full-service airlines or budget-friendly choices, you can compare various itineraries to find the best fit for your travel plans, budget, and schedule. Get ready to discover the iconic sights and vibrant neighborhoods of Perth as you prepare to book your Denver to Perth flights.

  • Fastest flight duration: around 23h 15m in-flight, plus roughly 5h 30m total layover with two or more stops
  • Route distance: roughly 10,100 miles (16,250 km)
  • Flights per week: around 8 departures on average
  • Typical fares (one-way): economy tickets often range from $630–$1455, depending on seasonality and how far ahead you book

Flights from Denver International Airport (DEN) to Perth Airport (PER)

Based on recent traveler bookings, here are the most popular airlines flying from Denver to Perth, often selected for their multi-stop options. Common layovers include Los Angeles International Airport (LAX) with about a 2-hour wait, and Kingsford Smith International Airport (SYD) with a roughly 3-hour layover. These choices allow you to tailor your journey by balancing price, total travel time, and cabin class, helping you to secure the best itinerary for your needs.

  • Qantas Airways: This full-service airline provides multi-stop options, with one-way ticket prices generally falling between $630 and $1125. It represents about 33% of flights on this route, featuring an in-flight duration of 23 hours and 15 minutes, with a total travel time of around 30 hours and 45 minutes, including layovers.
  • Cathay Pacific: Another full-service carrier, Cathay Pacific offers multi-stop journeys, with one-way fares typically ranging from $840 to $990. This airline makes up roughly 13% of departures for this route, boasting an in-flight time of 23 hours and 15 minutes, and a total travel duration of approximately 30 hours and 45 minutes, factoring in layovers.
  • United: As a full-service airline providing multi-stop services, United features one-way ticket prices usually between $1040 and $1100. It accounts for around 7% of flights on this route, with an in-flight time of 23 hours and 15 minutes, and a total journey time of close to 30 hours and 45 minutes, including layovers.

Alternative route from Denver (DEN) to Perth (PER)

  • Colorado Springs to Perth (COS-PER): Colorado Springs Airport (COS) is located approximately 73 miles from Denver International Airport (DEN).

How to find the best prices for flights from Denver (DEN) to Perth (PER)

Getting some of the best deals on flights from Denver to Perth is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking at least two months in advance, although most travelers tend to book between two and eight weeks ahead. Afternoon departures from 12 PM to 6 PM typically offer lower prices, while evening flights from 6 PM to 12 AM are more popular. Additionally, flying on Monday often results in cheaper prices, even though Tuesday is the most favored travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Perth Airport from Denver International Airport

Perth welcomes travelers from Denver with a range of transport options based on price, convenience, and proximity. Here's how to reach Perth efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Perth, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Perth Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Perth Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Perth Airport, the nearby Seaport is just 0.1 miles away on foot, while Bassendean Ashfield Station, a train station, is located about 3.1 miles from the airport by car. If you’re looking to take a ferry, Barrack Street Jetty Ferry Terminal is approximately 7.9 miles away by car.

Frequently asked questions

How much does a flight from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER) cost?
You can find cheap one-way flights from $763 and cheap return flights from $1,550 Denver, CO (DEN-Denver Intl.) to Perth, WA (PER) with Expedia. One-way flights usually range from $918 to $6286, and return flights typically cost between $1826 and $10240. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Denver, CO (DEN-Denver Intl.) to Perth, WA (PER) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER)?
The cheapest month to fly from DEN to PER is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER)?
Enter DEN to PER and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER)?
Delta is one of the cheapest airlines offering connecting flights from Denver (DEN) to Perth (PER) with a layover in Los Angeles Intl. (LAX), starting from around $1875. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER)?
To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from DEN to PER. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER)?
The most popular departure times for flights from Denver International Airport (DEN) to Perth are in the early evening, from 6pm to 9pm. About 42% of passengers prefer this time window. Many major carriers, including United Airlines, Qantas and Delta, offer flights during this window. This timing works well because it allows you to enjoy a full day in Denver before heading off on your adventure.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER)?
A flight from DEN to PER with a layover takes around 25 hours, with the route covering approximately 10,119 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER)?
Business class seats are offered on the DEN to PER route. Airlines that offer business class service on this route include:

  • American Airlines
  • Air Canada
  • United Airlines
  • Aer Lingus
  • Edelweiss Air
  • British Airways

First class is available with United Airlines.
How do I earn miles on a Denver, CO (DEN-Denver Intl.) to Perth, WA (PER) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Perth, WA (PER) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Denver, CO (DEN-Denver Intl.) to Perth, WA (PER) flight and hotel package?
Securing a Denver, CO (DEN-Denver Intl.) to Perth, WA (PER) Perth Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver, CO (DEN-Denver Intl.) to Perth, WA (PER)?
If you booked your Denver, CO (DEN-Denver Intl.) to Perth, WA (PER) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Denver Intl.
Destination airport
Perth
Airlines serving
Air Canada, Air New Zealand, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, Lufthansa, Qantas Airways, Qatar Airways, Singapore Airlines, United
Roundtrip price
$1,550
Distance
10118 mi

Book with confidence

Denver to Perth Flights

The cheapest times to fly from Denver to Perth

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Perth are during the month of September. You can find some of the cheapest flights from Denver to Perth with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to Perth

Sunday is one of the best days to book for cheap flights from Denver to Perth: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to Perth

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Perth in 2026. You can also book with separate airlines for your outbound and return journeys, from $763 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Perth flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Perth airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Denver to Perth Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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