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Cheap flights from the United States to Australia from $377

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Australia departing on 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from the United States to Australia

Recent round-trip flight deals from the United States to Australia

Qantas Airways Logo
10:45 pm - 9:00 amLAX-SYD
15h 15mnonstop
Qantas Airways Logo
6:20 am - 6:55 amSYD-LAX
19h 35m1 stop
$814Qantas Airways
Find Deal
Wed, Nov 26 - Sun, Dec 7
Philippine Airlines Logo
9:30 pm - 9:50 amSEA-SYD
41h 20m1 stop
Philippine Airlines Logo
11:35 am - 7:40 pmSYD-SEA
26h 05m1 stop
$814Philippine Airlines
Find Deal
Fri, Feb 27 - Wed, Mar 11
American Airlines Logo
1:53 pm - 9:00 amSEA-SYD
25h 07m2 stops
American Airlines Logo
11:20 am - 6:11 pmSYD-SEA
25h 51m1 stop
$819American Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
American Airlines Logo
6:02 am - 9:00 amSEA-SYD
31h 58m1 stop
American Airlines Logo
2:05 pm - 7:03 pmSYD-SEA
23h 58m1 stop
$822American Airlines
Find Deal
Mon, Feb 2 - Mon, Feb 16
Fiji Airways Logo
11:55 pm - 12:45 pmLAX-SYD
18h 50m1 stop
Fiji Airways Logo
6:00 am - 11:50 amSYD-LAX
24h 50m1 stop
$827Fiji Airways
Find Deal
Wed, Oct 29 - Wed, Nov 5
Fiji Airways Logo
10:45 pm - 10:10 amLAX-BNE
17h 25m1 stop
Fiji Airways Logo
11:25 am - 11:50 amBNE-LAX
18h 25m1 stop
$830Fiji Airways
Find Deal
Sat, Feb 14 - Sat, Mar 7
United Airlines Logo
12:24 pm - 9:05 amSEA-SYD
25h 41m1 stop
United Airlines Logo
12:10 pm - 11:18 amSYD-SEA
18h 08m1 stop
$838United Airlines
Find Deal
Fri, Jan 30 - Tue, Feb 17
Delta Logo
1:30 pm - 6:50 amSEA-SYD
22h 20m2 stops
Delta Logo
2:15 pm - 4:23 pmSYD-SEA
21h 08m1 stop
$839Delta
Find Deal
Thu, Feb 5 - Mon, Feb 16
United Airlines Logo
12:35 pm - 6:20 amSEA-SYD
22h 45m1 stop
United Airlines Logo
11:20 am - 11:28 amSYD-SEA
19h 08m1 stop
$840United Airlines
Find Deal
Fri, Jan 30 - Wed, Feb 18
Delta Logo
5:55 pm - 7:35 amSEA-SYD
19h 40m1 stop
Delta Logo
10:25 am - 12:18 amSYD-SEA
31h 53m1 stop
$850Delta
Find Deal
Mon, Oct 13 - Sun, Oct 26

Air Canada flights from United States to Australia

Our best Air Canada deals on United States to Australia flight tickets
Air Canada
Oct 19
SEA7:15 pmSeattle/Tacoma Intl
22h 25m
2 stops
SYD11:40 amSydney Kingsford Smith
Nov 2
SYD9:00 amSydney Kingsford Smith
19h 31m
2 stops
SEA10:31 amSeattle/Tacoma Intl
$817
Find similar
Air Canada
Feb 27
SEA10:05 amSeattle/Tacoma Intl
28h 30m
1 stop
SYD9:35 amSydney Kingsford Smith
Mar 22
SYD10:20 amSydney Kingsford Smith
22h 41m
1 stop
SEA3:01 pmSeattle/Tacoma Intl
$820
Find similar
Air Canada
Oct 21
SEA5:30 amSeattle/Tacoma Intl
32h 50m
1 stop
SYD8:20 amSydney Kingsford Smith
Oct 31
SYD10:20 amSydney Kingsford Smith
22h 11m
1 stop
SEA2:31 pmSeattle/Tacoma Intl
$830
Find similar

Fiji Airways flights from United States to Australia

Our best Fiji Airways deals on United States to Australia flight tickets
Fiji Airways
Oct 29
LAX11:55 pmLos Angeles
18h 50m
1 stop
SYD12:45 pmSydney Kingsford Smith
Nov 5
SYD6:00 amSydney Kingsford Smith
24h 50m
1 stop
LAX11:50 amLos Angeles
$827
Find similar
Fiji Airways
Feb 14
LAX10:45 pmLos Angeles
17h 25m
1 stop
BNE10:10 amBrisbane
Mar 7
BNE11:25 amBrisbane
18h 25m
1 stop
LAX11:50 amLos Angeles
$830
Find similar
Fiji Airways
Nov 1
LAX11:45 pmLos Angeles
17h 25m
1 stop
BNE10:10 amBrisbane
Nov 15
BNE11:35 pmBrisbane
30h 15m
1 stop
LAX11:50 amLos Angeles
$831
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United States to Australia 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, momondo users made 832,500 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from the United States to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Wed 11/26

10:45 pm-9:00 am

Nonstop15h 15m

Sydney Kingsford Smith

Sun 12/7

6:20 am-6:55 am

1 stop19h 35m

$814

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Fri 2/27

9:30 pm-9:50 am

1 stop41h 20m

Sydney Kingsford Smith

Wed 3/11

11:35 am-7:40 pm

1 stop26h 05m

$814

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 10/28

1:53 pm-9:00 am

2 stops25h 07m

Sydney Kingsford Smith

Tue 11/4

11:20 am-6:11 pm

1 stop25h 51m

$819

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 2/2

6:02 am-9:00 am

1 stop31h 58m

Sydney Kingsford Smith

Mon 2/16

2:05 pm-7:03 pm

1 stop23h 58m

$822

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Wed 10/29

11:55 pm-12:45 pm

1 stop18h 50m

Sydney Kingsford Smith

Wed 11/5

6:00 am-11:50 am

1 stop24h 50m

$827

Los AngelesBrisbane

LAX - BNE

LAXBNE

Los Angeles

Sat 2/14

10:45 pm-10:10 am

1 stop17h 25m

Brisbane

Sat 3/7

11:25 am-11:50 am

1 stop18h 25m

$830

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Fri 1/30

12:24 pm-9:05 am

1 stop25h 41m

Sydney Kingsford Smith

Tue 2/17

12:10 pm-11:18 am

1 stop18h 08m

$838

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Thu 2/5

1:30 pm-6:50 am

2 stops22h 20m

Sydney Kingsford Smith

Mon 2/16

2:15 pm-4:23 pm

1 stop21h 08m

$839

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Fri 1/30

12:35 pm-6:20 am

1 stop22h 45m

Sydney Kingsford Smith

Wed 2/18

11:20 am-11:28 am

1 stop19h 08m

$840

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 10/13

5:55 pm-7:35 am

1 stop19h 40m

Sydney Kingsford Smith

Sun 10/26

10:25 am-12:18 am

1 stop31h 53m

$850

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Australia from

How to get the cheapest flight ticket from United States to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Australia?

The month of February is, on average, the cheapest month to fly to Australia from United States, with most prices found around $1,113. If you aren’t able to travel during the month of February, then book flights to Australia from United States during March instead. Flights to Australia in March, while not as cheap as those in February, still average around $1,276.

What is the cheapest day to depart on your flight to Australia?

The cheapest day to depart from United States to Australia is on a Tuesday. Travelers who choose to depart for Australia on a Tuesday will often find tickets for as low as $1,049. On the other hand, Monday is the most expensive day to depart from United States because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,103.

What is the cheapest time of day to depart on your flight to Australia?

Flying to Australia from United States in the morning is the least expensive time of day to depart. momondo users have found prices as low as $949 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,126 on average. Flights to Australia from United States at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest United States to Australia flight route?

Fly from Los Angeles to Brisbane for the best United States - Australia flight prices

How far in advance should I book a flight to Australia?

You are more likely to see cheaper flights to Australia from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,503 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from United States for as low as $1,272 on momondo.

What cabin class options are available on United States to Australia flights?

There are 4 cabin classes available to choose from on United States to Australia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to Australia flights?

No. A direct flight is the cheapest option for a flight between United States to Australia.

Cheap United States to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Australia

Best Price Found

$250

Fastest flight time

14h 05m

Direct flights

Every day

Airports in Australia

1 airport
The best one-way flight to Australia from United States in the past 72 hours is $250. The best round-trip flight deal from United States to Australia found on momondo in the last 72 hours is $416.
The fastest flight from United States to Australia takes 14h 05m
Direct flights go from United States to Australia every day.
There is 1 airport near Australia: Brisbane (BNE)
Search flight deals

  • When did momondo last update prices for flights from United States to Australia?

    Prices for flights from United States to Australia refresh daily.

  • How many operators does momondo search for flights from United States to Australia?

  • How old do you have to be to fly from United States to Australia?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Australia.

  • What documentation or ID do you need to fly to Australia?

    The travel and health documents required for your trip to Australia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from United States to Australia?

Best airlines flying from United States to Australia

Compare and see reviews for airlines that fly from United States to Australia with momondo
Airline
Rating
Free Cancellation
Price
Philippine AirlinesPriceFrom $145Free CancellationRating
7.2
911 reviews
Search Philippine Airlines flights
JetBluePriceFrom $251Free CancellationRating
7.2
2,912 reviews
Search JetBlue flights
DeltaPriceFrom $267Free CancellationRating
7.9
7,954 reviews
Search Delta flights
Fiji AirwaysPriceFrom $377Free CancellationRating
8.0
205 reviews
Search Fiji Airways flights
ANAPriceFrom $418Free CancellationRating
8.4
961 reviews
Search ANA flights
Virgin AustraliaPriceFrom $455Free CancellationRating
7.5
416 reviews
Search Virgin Australia flights
Hawaiian AirlinesPriceFrom $499Free CancellationRating
7.8
2,723 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $644Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $645Free CancellationRating
7.5
905 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $684Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from United States to Australia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United States to Australia. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from United States to Australia with flexible booking policies on momondo?

All flight searches from United States to Australia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from United States to Australia?

momondo provides multiple filters to help you find the best flight to Australia from United States. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from United States to Australia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Australia, momondo offers a useful price alert feature which will track prices for flights to Australia from United States and alert you when they change.

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Find better results for your trip to Australia

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Popular flights according to clicks in the last 7 days on momondo
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