$908 Cheap Flights from Baltimore (BWI) to Sydney (SYD)

View $908 flight on Mon, Aug 10, 2026Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Sydney Airport (SYD)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Baltimore to Sydney (BWI-SYD)

Prices were available within the past 7 days and start at $908 for one-way flights and $1,250 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Feb 23 - Mon, Mar 9
BWI
Baltimore
SYD
Sydney
$1,250 Roundtrip, found 6 days ago
$1,250
Roundtrip
found 6 days ago
Select United flight, departing Mon, Feb 23 from Baltimore to Sydney, returning Mon, Mar 9, priced at $1,250 found 6 days ago
American Airlines
Wed, Mar 4 - Wed, Mar 25
BWI
Baltimore
SYD
Sydney
$1,265 Roundtrip, found 6 days ago
$1,265
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Mar 4 from Baltimore to Sydney, returning Wed, Mar 25, priced at $1,265 found 6 days ago
American Airlines
Tue, Jan 20 - Sun, Jan 25
BWI
Baltimore
SYD
Sydney
$1,295 Roundtrip, found 5 days ago
$1,295
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Jan 20 from Baltimore to Sydney, returning Sun, Jan 25, priced at $1,295 found 5 days ago
Delta
Mon, Feb 23 - Mon, Mar 9
BWI
Baltimore
SYD
Sydney
$1,304 Roundtrip, found 6 days ago
$1,304
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Feb 23 from Baltimore to Sydney, returning Mon, Mar 9, priced at $1,304 found 6 days ago
Delta
Tue, Jan 20 - Sun, Jan 25
BWI
Baltimore
SYD
Sydney
$1,310 Roundtrip, found 5 days ago
$1,310
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Jan 20 from Baltimore to Sydney, returning Sun, Jan 25, priced at $1,310 found 5 days ago
Qantas Airways
Fri, Oct 31 - Fri, Nov 7
BWI
Baltimore
SYD
Sydney
$1,351 Roundtrip, found 6 days ago
$1,351
Roundtrip
found 6 days ago
Select Qantas Airways flight, departing Fri, Oct 31 from Baltimore to Sydney, returning Fri, Nov 7, priced at $1,351 found 6 days ago
Air New Zealand
Sun, Nov 16 - Tue, Dec 2
BWI
Baltimore
SYD
Sydney
$1,388 Roundtrip, found 1 day ago
$1,388
Roundtrip
found 1 day ago
Select Air New Zealand flight, departing Sun, Nov 16 from Baltimore to Sydney, returning Tue, Dec 2, priced at $1,388 found 1 day ago
American Airlines
Tue, Nov 11 - Thu, Dec 4
BWI
Baltimore
SYD
Sydney
$1,439 Roundtrip, found 4 days ago
$1,439
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Nov 11 from Baltimore to Sydney, returning Thu, Dec 4, priced at $1,439 found 4 days ago
United
Tue, Nov 11 - Thu, Dec 4
BWI
Baltimore
SYD
Sydney
$1,452 Roundtrip, found 4 days ago
$1,452
Roundtrip
found 4 days ago
Select United flight, departing Tue, Nov 11 from Baltimore to Sydney, returning Thu, Dec 4, priced at $1,452 found 4 days ago
Delta
Tue, Nov 11 - Thu, Dec 4
BWI
Baltimore
SYD
Sydney
$1,457 Roundtrip, found 4 days ago
$1,457
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Nov 11 from Baltimore to Sydney, returning Thu, Dec 4, priced at $1,457 found 4 days ago

Find the cheapest month to fly from Baltimore (BWI) to Sydney (SYD)

September is typically the cheapest month to fly

From $1,133 - $2,276 per traveler.

Alternative airports near Sydney

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

Select flight to Kingsford Smith Intl. SYD. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $2,300
SYD
Kingsford Smith Intl.
Cheapest
Average driving time to city center16 min
Flights from $2,300

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kingsford Smith Intl. Airport (SYD) cost?
Lock in a cheap one-way flight from $908 or cheap return flight from $1,250 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kingsford Smith Intl. Airport (SYD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kingsford Smith Intl. Airport (SYD)?
Planning your getaway for February can help you save, as it's the cheapest month for flights between BWI and SYD. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kingsford Smith Intl. Airport (SYD)?
To find the cheapest airline flying from BWI to SYD, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kingsford Smith Intl. Airport (SYD)?
Nonstop flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kingsford Smith Intl. Airport (SYD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BWI to SYD?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change based on a range of factors, such as the airline and season.*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 Kingsford Smith Intl. Airport (SYD)?
To reach Kingsford Smith Intl. Airport (SYD) without delays, book a flight that leaves Baltimore Washington Intl. Thurgood Marshall Airport (BWI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Kingsford Smith Intl. Airport (SYD) last-minute?
Booking your flight from BWI to SYD just before your trip is typically more expensive. However, if there's some wiggle room with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a BWI to SYD flight and hotel package?
Opting for a BWI to SYD flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our extensive range of stays and then add car rentals, flights and activities to your booking. Bundle everything 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 Kingsford Smith Intl. Airport (SYD)?
In most instances, you can cancel or reschedule your BWI to SYD flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you want more information, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Kingsford Smith Intl.
Airlines serving
Air China, Air New Zealand, Alaska Airlines, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, Delta, Emirates, Japan Airlines, Korean Air, Qantas Airways, Qatar Airways, Singapore Airlines, United
Roundtrip price
$1,250
Distance
9787 mi

Book with confidence

Book with confidence

Baltimore to Sydney Flights

The cheapest times to fly from Baltimore to Sydney

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 Sydney are during the month of February. You can find some of the cheapest flights from Baltimore to Sydney with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Sydney

Sunday is one of the best days to book for cheap flights from Baltimore to Sydney: 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 Sydney

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 Sydney in 2025. You can also book with separate airlines for your outbound and return journeys, from $908 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 Sydney 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 Sydney 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.

 

Baltimore to Sydney Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.