Cheap flights from Baltimore to Sydney from $650

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 23/11. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SYD
23 Nov — 30 Nov1
1 adult
1 adult, Economy, 0 bags

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 24 October 2025.

Round-trip from

$1,759

One-way from

$650

Popular in

December

Cheapest in

September

Average price

$2,457
Qantas Airways
  • Qantas Airways
  • 29/12-28/1
  • 3 total stops
  • 48h 25m total
  • Baltimore to Sydney
23/11
  • 23/11
  • 3 total stops
  • 54h 28m total
  • Baltimore to Sydney
Highest demand for flights based on searches. 15% potential increase in price ($659 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($90 potential savings vs. average return price).
Average for round-trip flights in October 2025

Find 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 24 October 2025.

Mon 29/1215:14BWI - SYD
1 stop23h 41mQantas Airways
Wed 28/106:05SYD - BWI
2 stops24h 44mQantas Airways
Deal found 22/10$1,759
Mon 29/1215:14BWI - SYD
1 stop23h 41mQantas Airways
Tue 27/119:40SYD - BWI
2 stops35h 09mQantas Airways
Deal found 22/10$1,762
Mon 1/1205:45BWI - SYD
2 stops33h 40mMultiple Airlines
Fri 5/1217:45SYD - BWI
2 stops31h 32mMultiple Airlines
Deal found 22/10$1,800
Tue 11/1115:23BWI - SYD
1 stop23h 32mQantas Airways
Wed 10/1214:05SYD - BWI
1 stop23h 12mQantas Airways
Deal found 23/10$1,897
Fri 28/1115:07BWI - SYD
2 stops38h 48mQantas Airways
Mon 15/1214:05SYD - BWI
1 stop23h 12mQantas Airways
Deal found 23/10$1,914
Wed 29/1013:27BWI - SYD
1 stop26h 28mAmerican Airlines
Wed 19/1114:05SYD - BWI
1 stop24h 57mAmerican Airlines
Deal found 23/10$1,960
Tue 2/1215:07BWI - SYD
1 stop23h 48mAmerican Airlines
Wed 14/114:05SYD - BWI
2 stops23h 18mAmerican Airlines
Deal found 22/10$1,968
Mon 10/1118:35BWI - SYD
1 stop22h 40mUnited Airlines
Tue 25/1111:20SYD - BWI
1 stop22h 31mUnited Airlines
Deal found 23/10$1,969
Wed 19/1115:23BWI - SYD
2 stops39h 02mQantas Airways
Wed 26/1114:05SYD - BWI
1 stop24h 49mQantas Airways
Deal found 22/10$1,983
Sun 2/1118:35BWI - SYD
1 stop22h 40mUnited Airlines
Tue 25/1111:50SYD - BWI
1 stop20h 12mUnited Airlines
Deal found 23/10$1,985

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 24 October 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

Wed 3/12

16:15-09:15

2 stops25h 00m

Sydney Kingsford Smith

Wed 17/12

12:10-17:16

1 stop21h 06m

$1,985

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 16/2

16:05-07:00

1 stop22h 55m

Sydney Kingsford Smith

Sun 8/3

10:20-15:52

1 stop21h 32m

$1,985

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Wed 1/4

17:50-08:00

1 stop23h 10m

Sydney Kingsford Smith

Tue 28/4

10:20-22:34

2 stops26h 14m

$1,991

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 11/11

15:23-06:55

1 stop23h 32m

Sydney Kingsford Smith

Wed 10/12

07:20-14:28

2 stops23h 08m

$1,997

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sat 28/3

16:02-08:00

2 stops48h 58m

Sydney Kingsford Smith

Sun 19/4

09:30-23:00

2 stops27h 30m

$2,019

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 9/2

18:34-09:15

1 stop22h 41m

Sydney Kingsford Smith

Fri 10/4

10:20-17:32

1 stop21h 12m

$2,062

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Tue 7/4

17:50-07:00

1 stop23h 10m

Sydney Kingsford Smith

Sat 25/4

10:20-17:32

1 stop21h 12m

$2,062

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sat 28/3

16:02-08:00

2 stops48h 58m

Sydney Kingsford Smith

Sat 18/4

09:30-16:47

1 stop21h 17m

$2,095

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Sun 23/11

19:08-20:15

2 stops57h 07m

$727

BaltimoreSydney

BWI - SYD

BWISYD

Baltimore/Washington

Mon 9/2

21:37-06:10

3 stops40h 33m

$890

Flights are sorted by cheapest return flights first.

Deals found on 23/10

Showing 1-10 of 18 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 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?

Use this chart to determine the optimal time to book a return flight from Baltimore to Sydney. Price data was last updated on 17 October 2025.

Booking 65 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, August is the cheapest month in which you can book a flight from Baltimore to Sydney (average of $211). Flying from Baltimore to Sydney in October is currently the most expensive (average of $1,290). 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?

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 24 October 2025.
Get a feel of what it's like to fly with United Airlines from Baltimore to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

6.6

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Food

6.6

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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 and American Airlines fly from Baltimore to Sydney in about 23h 32m. The time it takes to get you to your destination can typically vary by up to 1h 28m. The distance from Baltimore to Sydney is about 15741 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from Baltimore to Sydney round-trip?

    Cheapflights users have booked flights from Baltimore to Sydney round-trip from $2,229. United Airlines is 4% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, August is the cheapest month in which you can book a flight from Baltimore to Sydney (average of $211). Flying from Baltimore to Sydney in October is currently the most expensive (average of $1,290). 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
Katoomba
Penrith
Manly
Terrigal
Randwick
Coogee
Leura
Lithgow
Bondi Beach
Cronulla

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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.

Top airline flying from Baltimore to Sydney

Discover the top airline 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 647,157 searches. Data last updated 24 October 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$2,229Average$2,393FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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

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

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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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