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$633+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SYD
Dec 5 — Dec 121
Fri 12/5
Fri 12/12
1 adult, Economy
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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

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3. Compare prices and book

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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 November 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,158
(Kiwi.com)

One-way from

$633
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,557
Provider with most accurate pricing for Baltimore/Washington-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Baltimore/Washington-Sydney Kingsford Smith flights.
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From Baltimore/Washington to Sydney Kingsford Smith
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One-way flight from Baltimore/Washington to Sydney Kingsford Smith
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Highest demand for flights based on searches. 15% potential increase in price ($281 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 5, 2025.

This Mytrip deal was found by Cheapflights users on 11/4. 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.
Sun 11/1610:25 amBWI - SYD
3 stops34h 10mMultiple Airlines
Tue 12/22:00 pmSYD - BWI
3 stops35h 36mMultiple Airlines
Deal found 11/4$1,175
This American Airlines deal was found by Cheapflights users on 11/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/93:17 pmBWI - SYD
2 stops25h 43mAmerican Airlines
Sun 11/2311:20 amSYD - BWI
2 stops22h 57mAmerican Airlines
Deal found 11/3$1,232
This Qantas Airways deal was found by Cheapflights users on 11/5. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/113:23 pmBWI - SYD
1 stop23h 32mMultiple Airlines
Sun 11/232:05 pmSYD - BWI
1 stop24h 49mMultiple Airlines
Deal found 11/5$1,248
This American Airlines deal was found by Cheapflights users on 11/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/112:46 pmBWI - SYD
2 stops26h 14mAmerican Airlines
Sun 11/2311:20 amSYD - BWI
2 stops27h 34mAmerican Airlines
Deal found 11/4$1,251
This American Airlines deal was found by Cheapflights users on 11/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:46 pmBWI - SYD
2 stops24h 39mAmerican Airlines
Tue 11/252:05 pmSYD - BWI
1 stop20h 12mAmerican Airlines
Deal found 11/3$1,253
This United Airlines deal was found by Cheapflights users on 11/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:35 pmBWI - SYD
1 stop22h 40mUnited Airlines
Tue 12/211:50 amSYD - BWI
1 stop20h 25mUnited Airlines
Deal found 11/4$1,254
This United Airlines deal was found by Cheapflights users on 11/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/58:30 amBWI - SYD
1 stop32h 45mUnited Airlines
Sun 11/1612:10 pmSYD - BWI
1 stop21h 18mUnited Airlines
Deal found 11/4$1,263
This United Airlines deal was found by Cheapflights users on 11/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:00 amBWI - SYD
1 stop33h 00mUnited Airlines
Tue 11/2512:10 pmSYD - BWI
1 stop21h 18mUnited Airlines
Deal found 11/3$1,264
This Delta deal was found by Cheapflights users on 11/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:51 pmBWI - SYD
2 stops26h 39mDelta
Sun 11/1610:40 amSYD - BWI
2 stops22h 36mDelta
Deal found 11/4$1,268
This Delta deal was found by Cheapflights users on 11/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:45 pmBWI - SYD
2 stops25h 45mDelta
Tue 11/2510:40 amSYD - BWI
2 stops23h 42mDelta
Deal found 11/3$1,269

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 November 5, 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

Sun 11/16

6:35 pm-9:15 am

1 stop22h 40m

Sydney Kingsford Smith

Tue 12/2

11:50 am-4:15 pm

1 stop20h 25m

$1,254

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 4/1

5:50 pm-8:00 am

1 stop23h 10m

Sydney Kingsford Smith

Tue 4/28

10:20 am-5:17 pm

1 stop20h 57m

$1,263

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 2/8

10:05 am-6:20 am

2 stops28h 15m

Sydney Kingsford Smith

Wed 2/11

12:10 pm-5:26 pm

1 stop21h 16m

$1,264

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 2/10

10:05 am-6:20 am

2 stops28h 15m

Sydney Kingsford Smith

Tue 2/24

12:10 pm-5:20 pm

1 stop21h 10m

$1,264

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 1/26

8:42 am-9:15 am

1 stop32h 33m

Sydney Kingsford Smith

Tue 2/17

11:50 am-4:10 pm

1 stop20h 20m

$1,264

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 1/25

8:01 am-9:05 am

1 stop33h 04m

Sydney Kingsford Smith

Mon 2/16

12:10 pm-5:20 pm

1 stop21h 10m

$1,264

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 1/27

8:42 am-9:15 am

1 stop32h 33m

Sydney Kingsford Smith

Wed 2/18

12:10 pm-5:20 pm

1 stop21h 10m

$1,264

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 11/16

12:16 pm-8:30 am

2 stops28h 14m

Sydney Kingsford Smith

Tue 12/2

10:40 am-6:11 pm

2 stops23h 31m

$1,268

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 1/28

1:02 pm-8:30 am

2 stops27h 28m

Sydney Kingsford Smith

Mon 2/16

10:40 am-7:42 pm

2 stops25h 02m

$1,269

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 1/25

4:10 pm-9:05 am

2 stops24h 55m

Sydney Kingsford Smith

Tue 2/17

12:10 pm-9:27 pm

2 stops25h 17m

$1,269

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 24 results
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Compare providers for flights from Baltimore to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Sydney in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-Sydney flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Baltimore-Sydney flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Baltimore-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Sydney flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 31, 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, August is the cheapest month in which you can book a flight from Baltimore to Sydney (average of $137). Flying from Baltimore to Sydney in October is currently the most expensive (average of $839). 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 November 5, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 27% 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 November 5, 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
7.9
Good
8,005 reviews

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Qantas Airways
7.5
Good
927 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,001 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,042 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 22h 40m. 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, August is the cheapest month in which you can book a flight from Baltimore to Sydney (average of $137). Flying from Baltimore to Sydney in October is currently the most expensive (average of $839). 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

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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 November 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$795FlexibilityNo cancel feeOn-timeN/A
Qantas AirwaysCheapest$787Average$1,370FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$858Average$1,406FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$1,180Average$1,549FlexibilityNo cancel feeOn-time69%

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