Flights to Sydney Kingsford Smith

$367 Cheap flights to Sydney

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Sydney departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from the United States to Sydney

Cheap round-trip flights

Fiji Airways Logo
11:55 pm - 12:45 pmLAX-SYD
18h 50m1 stop
Fiji Airways Logo
2:15 pm - 12:55 pmSYD-LAX
16h 40m1 stop
$763Fiji Airways
Find Deal
Tue, Oct 21 - Mon, Oct 27
Philippine Airlines Logo
9:30 pm - 9:50 amSEA-SYD
41h 20m1 stop
Philippine Airlines Logo
11:35 am - 6:35 pmSYD-SEA
26h 00m1 stop
$764Philippine Airlines
Find Deal
Sun, Nov 2 - Sun, Nov 16
Qantas Airways Logo
3:23 pm - 7:05 amSEA-SYD
22h 42m1 stop
Qantas Airways Logo
9:10 am - 2:52 pmSYD-SEA
22h 42m1 stop
$802Qantas Airways
Find Deal
Wed, Sep 24 - Wed, Oct 1
Qantas Airways Logo
5:05 pm - 7:05 amSEA-SYD
21h 00m1 stop
Qantas Airways Logo
9:10 am - 2:52 pmSYD-SEA
22h 42m1 stop
$803Qantas Airways
Find Deal
Sat, Sep 20 - Wed, Oct 1
American Airlines Logo
6:41 pm - 9:00 amSEA-SYD
19h 19m1 stop
American Airlines Logo
5:45 pm - 10:25 pmSYD-SEA
23h 40m1 stop
$826American Airlines
Find Deal
Mon, Dec 1 - Sun, Dec 14
American Airlines Logo
6:41 pm - 9:00 amSEA-SYD
19h 19m1 stop
American Airlines Logo
11:20 am - 2:08 pmSYD-SEA
21h 48m2 stops
$829American Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
United Airlines Logo
7:32 pm - 9:15 amSEA-SYD
18h 43m1 stop
United Airlines Logo
11:20 am - 12:51 pmSYD-SEA
20h 31m2 stops
$833United Airlines
Find Deal
Tue, Feb 17 - Sat, Mar 7
United Airlines Logo
11:10 am - 7:00 amSEA-SYD
26h 50m2 stops
United Airlines Logo
11:20 am - 6:45 pmSYD-SEA
25h 25m1 stop
$834United Airlines
Find Deal
Mon, Sep 29 - Thu, Oct 16
Delta Logo
5:59 pm - 8:30 amSEA-SYD
19h 31m1 stop
Delta Logo
10:40 am - 8:31 pmSYD-SEA
28h 51m1 stop
$843Delta
Find Deal
Sun, Nov 23 - Tue, Dec 2
Delta Logo
1:30 pm - 6:35 amSEA-SYD
24h 05m2 stops
Delta Logo
10:25 am - 6:24 pmSYD-SEA
25h 59m2 stops
$846Delta
Find Deal
Tue, Sep 30 - Sat, Oct 18

momondo Fare Finder

 
Locate flights to Sydney Kingsford Smith that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 832,500 searches and data was last updated on August 28, 2025.
Use the filters below to find and compare flights to Sydney that are best for you.

Fly from

Route

Depart

Return

Price

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Tue 10/21

11:55 pm-12:45 pm

1 stop18h 50m

Sydney Kingsford Smith

Mon 10/27

2:15 pm-12:55 pm

1 stop16h 40m

$763

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 11/2

9:30 pm-9:50 am

1 stop41h 20m

Sydney Kingsford Smith

Sun 11/16

11:35 am-6:35 pm

1 stop26h 00m

$764

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 9/24

3:23 pm-7:05 am

1 stop22h 42m

Sydney Kingsford Smith

Wed 10/1

9:10 am-2:52 pm

1 stop22h 42m

$802

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sat 9/20

5:05 pm-7:05 am

1 stop21h 00m

Sydney Kingsford Smith

Wed 10/1

9:10 am-2:52 pm

1 stop22h 42m

$803

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 12/1

6:41 pm-9:00 am

1 stop19h 19m

Sydney Kingsford Smith

Sun 12/14

5:45 pm-10:25 pm

1 stop23h 40m

$826

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 11/4

6:41 pm-9:00 am

1 stop19h 19m

Sydney Kingsford Smith

Tue 11/11

11:20 am-2:08 pm

2 stops21h 48m

$829

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 2/17

7:32 pm-9:15 am

1 stop18h 43m

Sydney Kingsford Smith

Sat 3/7

11:20 am-12:51 pm

2 stops20h 31m

$833

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 9/29

11:10 am-7:00 am

2 stops26h 50m

Sydney Kingsford Smith

Thu 10/16

11:20 am-6:45 pm

1 stop25h 25m

$834

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 11/23

5:59 pm-8:30 am

1 stop19h 31m

Sydney Kingsford Smith

Tue 12/2

10:40 am-8:31 pm

1 stop28h 51m

$843

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 9/30

1:30 pm-6:35 am

2 stops24h 05m

Sydney Kingsford Smith

Sat 10/18

10:25 am-6:24 pm

2 stops25h 59m

$846

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 Sydney from

Sydney flights insights and trends

Explore insights for your Sydney flight to craft the best travel plan

What is the cheapest month to fly to Sydney?

In general, February is the cheapest month to fly from United States to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,136. If you are unable to visit Sydney during the month of February, then departing from United States during the month March is also very affordable. Most momondo users find prices during this month for around $1,269.

What is the absolute cheapest flight to Sydney?

Users booking trips to Sydney from Ballina found flights 63% cheaper than the average price of flights to Sydney. To find the cheapest price to Sydney from your area, use momondo’s Airport-to-Airport Pricing Tool.
See prices from:

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

The cheapest day to depart from United States to Sydney is on a Sunday when prices can be found for as low as $1,748. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $2,496.

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

According to our data, the cheapest time of day to fly to Sydney is at noon. momondo users have found flights departing from United States to Sydney at noon for as low as $1,479. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the afternoon, with an average ticket price of $2,075. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Sydney from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,510 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from United States for as low as $1,265 on momondo.

Cheapest flights to Sydney Kingsford Smith

Find the cheapest flights to Sydney Kingsford Smith from your nearest city or airport
CHEAPEST MONTH TO FLY TO SYDNEY FROM LOS ANGELESFebruary10% cheaperFlying from Los Angeles to Sydney costs on average just $905 in February
MOST EXPENSIVE MONTH TO FLY TO SYDNEY FROM LOS ANGELESDecember36% more expensiveIt costs about $1,356 for flights to Sydney from Los Angeles in December
MOST POPULAR MONTH TO FLY TO SYDNEY FROM LOS ANGELESDecember397% more users visitedMore momondo users searched in flights to Sydney from Los Angeles in December than any other month

Cheap Sydney flight deals and tips

Summary info about Sydney flight prices, duration and airlines

Best One-Way Price

$367

Best Round-Trip Price

$763

Fastest flight time

19h 05m

Popular in

December
The best one-way flight price to Sydney from United States in the last 72 hours is $367 (Seattle/Tacoma Intl to Sydney Kingsford Smith).
The best round-trip flight price to Sydney from United States in the last 72 hours is $763 (Los Angeles to Sydney Kingsford Smith).
The fastest flight to Sydney from United States takes 19h 05m (Seattle/Tacoma Intl to Sydney Kingsford Smith).
December has the highest demand for flights to Sydney, with a 13% price increase on average.

Frequently asked questions about flying to Sydney

What is there to do in Sydney when it’s raining?

If you are planning a flight to Sydney and are looking to avoid the rain, you should avoid traveling during the months of March and June. These months will typically see 5.1 inches or more of rain, meaning that rain is likely. If you do run into rain while in Sydney, there are still things to do and ways to enjoy your trip. While in Sydney you will find Museum of Contemporary Art nearby which is a great museum to visit when you’re looking for things to do indoors. For those looking to take in an art gallery during their visit, Museum of Contemporary Art is a well known gallery in the area. Shopping centers like Oxford Street are very popular destinations for those visiting the Sydney area. Oxford Street is a great place to go if you’re looking to spend some time inside. Popular options when the weather doesn’t cooperate are indoor, family-friendly attractions like aquariums. Sydney has Sea Life Sydney Aquarium nearby for tourists looking for something to do while avoiding the poor weather.

How far away is the nearest zoo or aquarium from Sydney?

Just 3.1 mi from Sydney city center you will find Taronga Zoo, a zoo where many locals go to see the most recent exhibits and new animals. Tourists looking to visit the zoo should plan their flights to Sydney for January or February. Those looking for an aquarium near the Sydney city center won’t have to look too far. At 0.6 mi away, Sea Life Sydney Aquarium is very accessible and features some beautiful ocean animals that are very popular to tourists visiting Sydney. Those looking to visit the aquarium should book their trip or flight to Sydney for March. Indoor attractions like aquariums are popular around then since the weather is typically less ideal.

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

The ideal time to book your flight to Sydney is 59 days in advance when prices tend to average $1,430. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from United States for as low as $944 on momondo.

Is there an alternative airport near Sydney?

Those flying to Sydney could potentially find better pricing at Newcastle Williamtown Airport (83 mi from Sydney city center) or Bathurst Raglan Airport (95 mi from Sydney city center) depending on the month and departure airport.

Is there a cheaper alternative to flying into Sydney?

Prices vary based on where travelers are departing from, but on average, the cheapest airport to fly to in Sydney is Newcastle Williamtown Airport where the average price is $169. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to Sydney Kingsford Smith Airport?

Prices for flights to Sydney Kingsford Smith Airport are refreshed on a daily basis.

How many operators does momondo search for flights to Sydney Kingsford Smith Airport?

How old do you have to be to fly to Sydney Kingsford Smith Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The travel and health documents required for your trip to Sydney Kingsford Smith Airport 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 Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Sydney?

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

Why use momondo?

Why should I use momondo to find a flight deal to Sydney?

It is quick and easy to find flights to Sydney on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

Can I find flights to Sydney with flexible booking policies on momondo?

All flight searches to Sydney on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights to Sydney?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to Sydney.

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

Yes. momondo can track flight prices for Sydney and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
Tue 9/2
Tue 9/9

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