$839 Cheap Flights from Baltimore (BWI) to Perth (PER)

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Perth Airport (PER)

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Cheap Flights from Baltimore to Perth (BWI-PER)

Prices were available within the past 7 days and start at $839 for one-way flights and $1,522 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Alaska Airlines
Qantas Airways
Qantas Airways
Air New Zealand
Alaska Airlines
Qantas Airways
Qantas Airways
American Airlines
Singapore Airlines

Alternative airports near Perth

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

Flights from Baltimore (BWI) to Perth (PER)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Perth
Airlines serving
Air New Zealand, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, Qantas Airways, Qatar Airways, Singapore Airlines, United
Roundtrip price
$1,522
Distance
11568 mi

Baltimore to Perth Flights

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

 

The best time to book a flight from Baltimore to Perth

Sunday is one of the best days to book for cheap flights from Baltimore 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 Baltimore 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 Baltimore to Perth in 2025. You can also book with separate airlines for your outbound and return journeys, from $839 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 Baltimore 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 Baltimore 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.

 

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Perth Airport (PER) cost?
Discover the latest flight deals from BWI to PER by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BWI to PER?
The cheapest flights from BWI to PER are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BWI to PER?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BWI to PER. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Perth Airport (PER)?
Direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Perth Airport (PER) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BWI to PER?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Perth Airport (PER)?
Choose a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Perth Airport (PER) that leaves before 3 PM to reduce the likelihood of delays. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Perth Airport (PER) last-minute?
Last-minute bookings from BWI to PER are usually more expensive. To lock in the cheapest rates, start looking for flights ahead of time. That being said, if your travel plans are flexible, it's possible to land a cheap ticket right before you leave.
Is it cheaper to book a BWI to PER flight and hotel package?
Securing a BWI to PER flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our extensive range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Perth Airport (PER)?
If you booked your BWI to PER flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

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*Available to One Key members.