$735 Cheap Flights from Chicago (ORD) to Perth (PER)

Chicago (ORD) to Perth (PER) at a glance

Discover a range of airlines offering flights from Chicago (ORD) to Perth (PER) on this international long-haul route. Compare options from full-service carriers to find the best itinerary that suits your budget and travel schedule as you plan your adventure in Perth’s renowned neighborhoods and attractions. Check out the essential details for booking Chicago to Perth flights and explore flight prices along the way.

• Fastest flight duration: around 23h 45m in-flight, plus roughly 2h 45m layover with one stop
• Route distance: roughly 11,000 miles (17,700 km)
• Flights per week: around 8 departures on average
• Typical fares (one-way): economy tickets often range from $590–$1515, depending on seasonality and how far ahead you book

Flights from O'Hare International Airport (ORD) to Perth Airport (PER)

Recent traveler bookings reveal the top airlines flying from Chicago to Perth, favored for both multi-stop and one-stop journeys. Popular layover options include Los Angeles International Airport (LAX) with an approximate 2h 45m layover, Kingsford Smith International Airport (SYD) offering around 3h 15m, and Tullamarine Airport (MEL) featuring a 4-hour layover. This variety allows you to tailor your travel plans by balancing cost, overall travel time, and cabin class to discover your ideal itinerary.

• Cathay Pacific: This full-service airline provides a seamless one-stop experience, with one-way ticket prices generally falling between $770 and $2425. It comprises about 34% of the flights on this route, featuring an in-flight duration of 23 hours and 45 minutes, and a total travel time of approximately 26 hours and 15 minutes, including layover time.
• Qantas Airways: A full-service carrier that offers multi-stop itineraries, Qantas's one-way fares typically range from $605 to $1315. This airline accounts for around 25% of the departures on this route, with an in-flight time of 24 hours and 45 minutes and a total journey time of about 31 hours and 30 minutes, factoring in layovers.
• American Airlines: As a full-service airline providing multi-stop services, American Airlines has one-way fares generally ranging from $590 to $690. It makes up roughly 18% of the departures on this route, with an in-flight duration of 24 hours and 45 minutes and a total travel time of about 31 hours and 30 minutes, including layovers.
• Qatar Airways: This full-service airline offers a range of fares from $910 to $1180 for one-way tickets. Qatar Airways accounts for around 11% of flights on this route, with an in-flight duration of 23 hours and 45 minutes and an overall journey time of approximately 26 hours and 15 minutes, including a layover.

Alternative route from Chicago (ORD) to Perth (PER)

• Chicago to Rottnest Island (ORD-RTS): The airport serving Rottnest Island (RTS) is located approximately 25 miles from Perth Airport (PER).

How to find the best prices for flights from Chicago (ORD) to Perth (PER)

Getting some of the best deals on flights from Chicago 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 typically found when booking 2 to 8 weeks in advance, although most travelers book at least 2 months ahead. Afternoon departures between 12 PM and 6 PM tend to offer lower prices and are the most popular flight times. Additionally, flying on Monday generally provides cheaper rates, while Thursday is the most sought-after 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 O'Hare International Airport

Perth welcomes travelers from Chicago 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, key transport links are conveniently located nearby. The Seaport, a seaport, is just about 0.1 miles away on foot, while Bassendean Ashfield Station, a train station, is approximately 3.1 miles from the airport and typically reached by car. Additionally, Barrack Street Jetty Ferry Terminal, a ferry terminal, is around 7.9 miles away by car.

Chicago to Perth Flights

The cheapest times to fly from Chicago 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 Chicago to Perth are during the month of February. You can find some of the cheapest flights from Chicago to Perth with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Chicago to Perth

Sunday is one of the best days to book for cheap flights from Chicago 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 Chicago 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 Chicago to Perth in 2026. You can also book with separate airlines for your outbound and return journeys, from $735 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 Chicago 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 Chicago 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.