HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sydney

$554+ Cheap flights from Baltimore (BWI) to Sydney (SYD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SYD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baltimore to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Baltimore/Washington to Sydney Kingsford Smith are usually found in September or February, booked 65 days in advance, depart on a Sunday or Thursday and return on a Tuesday

Cheap flight deals from Baltimore to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 16, 2025.

Round-trip from

$1,108
(oojo)

One-way from

$554
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$875
From Baltimore/Washington to Sydney Kingsford Smith
Search Deals
One-way flight from Baltimore/Washington to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($308 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Baltimore to Sydney

Cheapest flights from Baltimore to Sydney
Explore the most affordable flight options available from Baltimore to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This oojo deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/123:23 pmBWI - SYD
2 stops38h 32mQantas Airways
Wed 11/192:05 pmSYD - BWI
1 stop24h 57mQantas Airways
Deal found 9/14$1,108
This oojo deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:27 pmBWI - SYD
2 stops41h 28mQantas Airways
Fri 11/72:05 pmSYD - BWI
1 stop24h 57mQantas Airways
Deal found 9/16$1,109
This oojo deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/113:23 pmBWI - SYD
1 stop23h 32mQantas Airways
Sun 11/237:20 amSYD - BWI
2 stops26h 57mQantas Airways
Deal found 9/14$1,116
This oojo deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/33:23 pmBWI - SYD
1 stop23h 32mQantas Airways
Sun 11/166:05 amSYD - BWI
2 stops24h 16mQantas Airways
Deal found 9/15$1,117
This oojo deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/103:20 pmBWI - SYD
1 stop23h 35mQantas Airways
Mon 12/229:55 pmSYD - BWI
2 stops32h 26mQantas Airways
Deal found 9/16$1,120
This Justfly.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/203:07 pmBWI - SYD
2 stops38h 23mQantas Airways
Fri 11/282:05 pmSYD - BWI
1 stop20h 12mQantas Airways
Deal found 9/15$1,143
This Justfly.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/103:20 pmBWI - SYD
1 stop23h 35mQantas Airways
Fri 1/237:05 amSYD - BWI
2 stops22h 52mQantas Airways
Deal found 9/14$1,146
This Mytrip deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/275:37 pmBWI - SYD
3 stops28h 08mMultiple Airlines
Sun 11/92:00 pmSYD - BWI
3 stops33h 23mMultiple Airlines
Deal found 9/16$1,153

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Baltimore to Sydney that are best for you.

Fly from

Baltimore

Fly to

Sydney

Route

Depart

Return

Price

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 11/11

3:23 pm-10:25 pm

2 stops39h 02m

Sydney Kingsford Smith

Sun 11/23

2:05 pm-6:17 pm

1 stop20h 12m

$1,137

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 11/16

3:17 pm-11:35 am

2 stops28h 18m

Sydney Kingsford Smith

Mon 11/24

6:30 am-2:15 pm

2 stops23h 45m

$1,352

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sat 11/1

1:27 pm-1:55 pm

2 stops33h 28m

Sydney Kingsford Smith

Sat 11/15

7:05 am-2:27 pm

2 stops23h 22m

$1,352

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 11/11

3:23 pm-10:25 pm

2 stops39h 02m

Sydney Kingsford Smith

Mon 11/24

6:05 am-2:15 pm

2 stops24h 10m

$1,352

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 11/2

3:17 pm-10:55 am

2 stops27h 38m

Sydney Kingsford Smith

Sat 11/15

7:05 am-2:27 pm

2 stops23h 22m

$1,352

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 11/16

3:17 pm-11:35 am

2 stops28h 18m

Sydney Kingsford Smith

Thu 11/27

6:30 am-2:15 pm

2 stops23h 45m

$1,352

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 11/12

3:23 pm-10:25 pm

2 stops39h 02m

Sydney Kingsford Smith

Mon 11/24

6:30 am-10:54 pm

2 stops32h 24m

$1,352

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 11/12

3:23 pm-9:55 pm

2 stops38h 32m

Sydney Kingsford Smith

Thu 11/27

7:05 am-2:15 pm

2 stops23h 10m

$1,352

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 11/11

3:23 pm-9:55 pm

2 stops38h 32m

Sydney Kingsford Smith

Thu 11/27

6:30 am-2:15 pm

2 stops23h 45m

$1,352

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sat 11/1

1:27 pm-1:55 pm

2 stops33h 28m

Sydney Kingsford Smith

Thu 11/13

6:05 am-6:17 pm

2 stops28h 12m

$1,352

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 20 results
1
2

Best time to book a flight from Baltimore to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to Sydney

How far ahead should I book a flight from Baltimore to Sydney?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to Sydney. Price data was last updated on September 12, 2025.

The best time to book flights from Baltimore to Sydney is 65 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Baltimore to Sydney?

Currently, March is the cheapest month in which you can book a flight from Baltimore to Sydney (average of $1,032). Flying from Baltimore to Sydney in December is currently the most expensive (average of $1,627). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BWI to SYD?

Find hourly flight availability from Baltimore to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 28% on flights from Baltimore to Sydney by exploring options for tickets in the morning.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated September 16, 2025.
Read reviews from past customers who have flown Delta, Qantas Airways, and United Airlines from Baltimore to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Qantas Airways
7.5
Good
907 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Baltimore to Sydney?

    Airlines like Qantas Airways fly from Baltimore to Sydney in about 39h 02m. The time it takes to get you to your destination can typically vary by up to . There are 9781 mi between Baltimore and Sydney.

  • What are the cheapest airlines flying from Baltimore to Sydney round-trip?

    According to our current data, Delta ($276), Qantas Airways ($787), and American Airlines ($858) offers the cheapest pricing from Baltimore to Sydney. You may be able to fly from Baltimore to Sydney for 81% less than the average price by searching for these airlines.

  • Can I find deals for flights from Baltimore to Sydney that include hotel bookings?

    Yes. In addition to deals on Baltimore to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Sydney.

  • Can I find deals for business class flights from Baltimore to Sydney?

    Yes. Cheapflights offers flight deals from Baltimore to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to Sydney?

    Currently, March is the cheapest month in which you can book a flight from Baltimore to Sydney (average of $1,032). Flying from Baltimore to Sydney in December is currently the most expensive (average of $1,627). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Baltimore to Sydney

Discover the top 4 airlines that operate flights from Baltimore to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$1,436FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$787Average$1,402FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$858Average$1,438FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$1,180Average$1,563FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.