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Cheap flights from Baltimore to Sydney from $768

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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SYD
27 May — 3 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Baltimore to Sydney

Enter your travel dates to find the best prices.

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 27 April 2026.

Sun 26/406:22
BWI
-
SYD
1 stop34h 38m
United Airlines
Sun 10/509:30
SYD
-
BWI
1 stop21h 38m
United Airlines
Deal found 24/4$1,856
Mon 27/406:23
BWI
-
SYD
2 stops34h 32m
Lufthansa
Sun 10/510:20
SYD
-
BWI
1 stop20h 58m
Lufthansa
Deal found 26/4$1,864
Mon 27/418:15
BWI
-
SYD
1 stop22h 40m
United Airlines
Sun 10/509:30
SYD
-
BWI
1 stop21h 38m
United Airlines
Deal found 26/4$1,866
Sun 26/715:03
BWI
-
SYD
2 stops25h 57m
United Airlines
Sun 16/809:30
SYD
-
BWI
1 stop21h 01m
United Airlines
Deal found 27/4$1,873
Sun 7/615:03
BWI
-
SYD
2 stops25h 57m
United Airlines
Tue 16/610:20
SYD
-
BWI
1 stop21h 37m
United Airlines
Deal found 23/4$1,874
Sun 10/516:12
BWI
-
SYD
2 stops24h 48m
United Airlines
Tue 19/509:30
SYD
-
BWI
1 stop21h 38m
United Airlines
Deal found 24/4$1,880
Sun 26/414:18
BWI
-
SYD
2 stops26h 32m
Delta
Mon 11/509:15
SYD
-
BWI
2 stops27h 34m
Delta
Deal found 23/4$1,881
Tue 21/707:00
BWI
-
SYD
1 stop34h 00m
United Airlines
Mon 17/809:30
SYD
-
BWI
1 stop21h 01m
United Airlines
Deal found 24/4$1,891
Wed 3/615:03
BWI
-
SYD
2 stops25h 57m
United Airlines
Tue 16/610:20
SYD
-
BWI
2 stops39h 27m
United Airlines
Deal found 27/4$1,899
Wed 13/519:17
BWI
-
SYD
1 stop21h 38m
Qantas Airways
Mon 18/512:00
SYD
-
BWI
1 stop25h 09m
Qantas Airways
Deal found 23/4$1,908
Sun 24/515:00
BWI
-
SYD
2 stops25h 55m
United Airlines
Sun 31/509:30
SYD
-
BWI
2 stops27h 15m
United Airlines
Deal found 23/4$1,934

Find 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 27 April 2026.

Round-trip from

$1,873

One-way from

$768

Popular in

December

Cheapest in

September

Average price

$1,671
United Airlines
  • United Airlines
  • 26/7-23/8
  • 3 total stops
  • 46h 58m total
  • Baltimore to Sydney
Search Deals
9/6
  • 9/6
  • 3 total stops
  • 52h 32m total
  • Baltimore to Sydney
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($177 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($69 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 27 April 2026.
Use the filters below to find and compare flights from Baltimore to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 26/7

15:03-07:00

2 stops25h 57m

Sydney Kingsford Smith

Sun 16/8

09:30-16:31

1 stop21h 01m

$1,873
Fastest return journey

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 26/7

19:23-07:00

1 stop21h 37m

Sydney Kingsford Smith

Sun 23/8

09:30-16:31

1 stop21h 01m

$1,873

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 25/5

19:21-07:00

1 stop21h 39m

Sydney Kingsford Smith

Mon 1/6

10:20-17:57

1 stop21h 37m

$1,873

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 2/8

15:03-07:00

2 stops25h 57m

Sydney Kingsford Smith

Sun 16/8

09:30-16:31

1 stop21h 01m

$1,873

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 24/5

18:59-06:55

1 stop21h 56m

Sydney Kingsford Smith

Mon 1/6

09:30-17:43

1 stop22h 13m

$1,874

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 8/6

15:03-07:00

2 stops25h 57m

Sydney Kingsford Smith

Mon 15/6

09:30-17:43

1 stop22h 13m

$1,874

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 22/7

15:03-07:00

2 stops25h 57m

Sydney Kingsford Smith

Wed 19/8

09:30-16:31

1 stop21h 01m

$1,874

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 2/8

15:03-07:00

2 stops25h 57m

Sydney Kingsford Smith

Sun 23/8

10:20-11:45

2 stops39h 25m

$1,899

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 10/5

18:20-06:55

1 stop22h 35m

Sydney Kingsford Smith

Tue 19/5

10:20-17:18

1 stop20h 58m

$1,983

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 27/7

15:03-07:00

2 stops25h 57m

Sydney Kingsford Smith

Sun 16/8

09:30-19:40

2 stops24h 10m

$1,989

Flights are sorted by cheapest return flights first.

Deals found on 23/4

Showing 1-10 of 20 resultsSorted by cheapest first
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 return 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?

Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from Baltimore to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from Baltimore to Sydney (average of $1,421). Flying from Baltimore to Sydney in December is currently the most expensive (average of $2,516). 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.

How much does it cost for a return flight from Baltimore to Sydney?

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 United Airlines fly from Baltimore to Sydney in about 25h 57m. The time it takes to get you to your destination can typically vary by up to . The distance from Baltimore to Sydney is about 15741 km.

  • 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 holiday 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, September is the cheapest month in which you can book a flight from Baltimore to Sydney (average of $1,421). Flying from Baltimore to Sydney in December is currently the most expensive (average of $2,516). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Katoomba
Terrigal
Lithgow
Cronulla
Manly
Bondi Beach
Leura
Randwick
Coogee

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Baltimore to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Baltimore to Sydney?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Baltimore to Sydney. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Baltimore to Sydney?

Cheapflights helps you find that perfect flight to Sydney from Baltimore by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Baltimore to Sydney with no change fees?

Need flexible booking options for your flight to Sydney from Baltimore? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Baltimore to Sydney become cheaper?

Yes! Start tracking prices for Baltimore to Sydney flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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