$793 Cheap Flights from Baltimore (BWI) to Adelaide (ADL)

View $793 flight on Mon, Dec 8, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Adelaide, SA Airport (ADL)

Cheap Flights from Baltimore to Adelaide (BWI-ADL)

Prices were available within the past 7 days and start at $793 for one-way flights and $1,210 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Feb 16 - Mon, Mar 2
BWI
Baltimore
ADL
Adelaide
$1,210 Roundtrip, found 6 days ago
$1,210
Roundtrip
found 6 days ago
Select United flight, departing Mon, Feb 16 from Baltimore to Adelaide, returning Mon, Mar 2, priced at $1,210 found 6 days ago
United
Mon, Feb 9 - Wed, Mar 4
BWI
Baltimore
ADL
Adelaide
$1,215 Roundtrip, found 5 days ago
$1,215
Roundtrip
found 5 days ago
Select United flight, departing Mon, Feb 9 from Baltimore to Adelaide, returning Wed, Mar 4, priced at $1,215 found 5 days ago
Qantas Airways
Wed, Jun 3 - Wed, Jul 1
BWI
Baltimore
ADL
Adelaide
$1,225 Roundtrip, found 15 hours ago
$1,225
Roundtrip
found 15 hours ago
Select Qantas Airways flight, departing Wed, Jun 3 from Baltimore to Adelaide, returning Wed, Jul 1, priced at $1,225 found 15 hours ago
Qantas Airways
Wed, Feb 18 - Wed, Mar 11
BWI
Baltimore
ADL
Adelaide
$1,236 Roundtrip, found 5 days ago
$1,236
Roundtrip
found 5 days ago
Select Qantas Airways flight, departing Wed, Feb 18 from Baltimore to Adelaide, returning Wed, Mar 11, priced at $1,236 found 5 days ago
Qantas Airways
Sun, Feb 1 - Sun, Feb 8
BWI
Baltimore
ADL
Adelaide
$1,237 Roundtrip, found 4 hours ago
$1,237
Roundtrip
found 4 hours ago
Select Qantas Airways flight, departing Sun, Feb 1 from Baltimore to Adelaide, returning Sun, Feb 8, priced at $1,237 found 4 hours ago
United
Mon, Feb 16 - Sat, Mar 7
BWI
Baltimore
ADL
Adelaide
$1,260 Roundtrip, found 6 days ago
$1,260
Roundtrip
found 6 days ago
Select United flight, departing Mon, Feb 16 from Baltimore to Adelaide, returning Sat, Mar 7, priced at $1,260 found 6 days ago
United
Sat, Feb 7 - Mon, Feb 23
BWI
Baltimore
ADL
Adelaide
$1,261 Roundtrip, found 1 day ago
$1,261
Roundtrip
found 1 day ago
Select United flight, departing Sat, Feb 7 from Baltimore to Adelaide, returning Mon, Feb 23, priced at $1,261 found 1 day ago
Air New Zealand
Sat, Jul 11 - Mon, Jul 27
BWI
Baltimore
ADL
Adelaide
$1,419 Roundtrip, found 23 hours ago
$1,419
Roundtrip
found 23 hours ago
Select Air New Zealand flight, departing Sat, Jul 11 from Baltimore to Adelaide, returning Mon, Jul 27, priced at $1,419 found 23 hours ago
American Airlines
Wed, Feb 18 - Wed, Mar 11
BWI
Baltimore
ADL
Adelaide
$1,660 Roundtrip, found 5 days ago
$1,660
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Feb 18 from Baltimore to Adelaide, returning Wed, Mar 11, priced at $1,660 found 5 days ago
Qatar Airways
Tue, Sep 1 - Tue, Sep 22
BWI
Baltimore
ADL
Adelaide
$3,190 Roundtrip, found 6 days ago
$3,190
Roundtrip
found 6 days ago
Select Qatar Airways flight, departing Tue, Sep 1 from Baltimore to Adelaide, returning Tue, Sep 22, priced at $3,190 found 6 days ago
Flights from Baltimore (BWI) to Adelaide (ADL)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Adelaide
Airlines serving
Air New Zealand, American Airlines, Cathay Pacific, Qantas Airways, Qatar Airways, United
Roundtrip price
$1,210
Distance
10485 mi

Baltimore to Adelaide Flights

The cheapest times to fly from Baltimore to Adelaide

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

 

The best time to book a flight from Baltimore to Adelaide

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

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 Adelaide in 2026. You can also book with separate airlines for your outbound and return journeys, from $793 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 Adelaide 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 Adelaide 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 Adelaide Airport (ADL) cost?
Snag a cheap one-way flight from $793 or cheap return flight from $1,210 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Adelaide Airport (ADL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Adelaide Airport (ADL)?
February is the most affordable month to fly from BWI to ADL. Timing your trip outside of the busy season is often the key to better flight prices.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Adelaide Airport (ADL)?
To find the cheapest airline flying from BWI to ADL, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Adelaide Airport (ADL)?
There aren't any daily nonstop flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Adelaide Airport (ADL). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from BWI to ADL?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can change 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 Adelaide Airport (ADL)?
To avoid potential delays on the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Adelaide Airport (ADL) route, travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**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 Adelaide Airport (ADL) last-minute?
Holding off until right before your break to book a ticket from BWI to ADL generally means paying more. While it's possible to find some last-minute deals, they aren't always guaranteed. Be flexible with your itinerary to boost your chances of getting a bargain.
Is it cheaper to book a BWI to ADL flight and hotel package?
Compared with arranging hotels and flights separately, booking a BWI to ADL flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one easy place takes the hassle out of planning your trip. Just secure your flights and choose from our wide range of hotels, then customize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Adelaide Airport (ADL)?
Generally, it's possible to reschedule or cancel your BWI to ADL flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.