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$440+ Cheap flights from Irvine, CA 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SYD
dic. 2 — dic. 91
mar. 12/2
mar. 12/9
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Sydney Kingsford Smith are usually found in February or August, booked 64 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Irvine to Sydney

Keep the following information in mind while searching for Irvine to Sydney flight deals. Data was last updated noviembre 2, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$853
(United Airlines)

One-way from

$440
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$987
Provider with most accurate pricing for Los Angeles-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Sydney Kingsford Smith flights.
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From Irvine to Sydney Kingsford Smith
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One-way flight from Irvine to Sydney Kingsford Smith
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Highest demand for flights based on searches. 15% potential increase in price ($184 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% 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 Irvine to Sydney

Cheapest flights from Irvine to Sydney
Explore the most affordable flight options available from Irvine to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 2, 2025.

This United Airlines deal was found by Cheapflights users on 10/31. 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.
lun. 11/176:50 pmLAX - SYD
1 stop19h 25mUnited Airlines
mié. 11/2611:20 amSYD - LAX
Nonstop13h 40mUnited Airlines
Deal found 10/31$854
This United Airlines deal was found by Cheapflights users on 11/1. 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.
sáb. 11/155:20 pmLAX - SYD
1 stop20h 55mUnited Airlines
lun. 12/811:20 amSYD - LAX
Nonstop13h 40mUnited Airlines
Deal found 11/1$855
This United Airlines deal was found by Cheapflights users on 10/30. 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.
mar. 12/304:10 pmLAX - SYD
1 stop19h 10mUnited Airlines
sáb. 1/2411:20 amSYD - LAX
Nonstop13h 40mUnited Airlines
Deal found 10/30$856
This United Airlines deal was found by Cheapflights users on 10/31. 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.
sáb. 12/610:40 pmLAX - SYD
Nonstop15h 25mUnited Airlines
mar. 12/2311:20 amSYD - LAX
Nonstop13h 40mUnited Airlines
Deal found 10/31$857
This United Airlines deal was found by Cheapflights users on 10/30. 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.
mié. 12/314:10 pmLAX - SYD
1 stop19h 10mUnited Airlines
mié. 1/1411:20 amSYD - LAX
Nonstop13h 40mUnited Airlines
Deal found 10/30$858
This American Airlines deal was found by Cheapflights users on 11/2. 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.
mié. 12/109:25 pmLAX - SYD
Nonstop15h 00mAmerican Airlines
mié. 12/1711:20 amSYD - LAX
Nonstop13h 45mAmerican Airlines
Deal found 11/2$859
This United Airlines deal was found by Cheapflights users on 11/2. 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.
mié. 11/2610:40 pmLAX - SYD
Nonstop15h 25mUnited Airlines
mié. 12/312:10 pmSYD - LAX
1 stop17h 37mUnited Airlines
Deal found 11/2$860
This United Airlines deal was found by Cheapflights users on 10/31. 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.
jue. 12/412:00 pmLAX - SYD
1 stop26h 15mUnited Airlines
lun. 12/811:20 amSYD - LAX
Nonstop13h 40mUnited Airlines
Deal found 10/31$861
This United Airlines deal was found by Cheapflights users on 11/1. 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.
sáb. 11/156:50 pmLAX - SYD
1 stop19h 25mUnited Airlines
vie. 12/1911:20 amSYD - LAX
Nonstop13h 40mUnited Airlines
Deal found 11/1$862
This United Airlines deal was found by Cheapflights users on 11/1. 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.
vie. 11/2810:40 pmLAX - SYD
Nonstop15h 25mUnited Airlines
jue. 12/411:20 amSYD - LAX
Nonstop13h 40mUnited Airlines
Deal found 11/1$863
This United Airlines deal was found by Cheapflights users on 10/31. 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.
dom. 11/301:34 pmLAX - SYD
1 stop24h 41mUnited Airlines
lun. 12/812:10 pmSYD - LAX
1 stop17h 37mUnited Airlines
Deal found 10/31$864
This United Airlines deal was found by Cheapflights users on 10/30. 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.
mié. 12/3112:08 pmLAX - SYD
1 stop23h 12mUnited Airlines
sáb. 1/1711:20 amSYD - LAX
Nonstop13h 40mUnited Airlines
Deal found 10/30$865

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine 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 noviembre 2, 2025.
Use the filters below to find and compare flights from Irvine to Sydney that are best for you.

Fly from

Irvine

Fly to

Sydney

Route

Depart

Return

Price

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

lun. 1/26

8:05 pm-9:15 am

1 stop18h 10m

Sydney Kingsford Smith

mié. 3/25

10:20 am-6:00 am

Nonstop13h 40m

$854

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

dom. 11/16

6:50 pm-9:15 am

1 stop19h 25m

Sydney Kingsford Smith

dom. 11/23

11:20 am-6:00 am

Nonstop13h 40m

$854

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

jue. 12/4

10:40 pm-9:05 am

Nonstop15h 25m

Sydney Kingsford Smith

mar. 1/13

11:20 am-6:00 am

Nonstop13h 40m

$856

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

mar. 12/30

10:55 pm-9:05 am

Nonstop15h 10m

Sydney Kingsford Smith

sáb. 1/24

11:20 am-6:00 am

Nonstop13h 40m

$856

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

mié. 12/31

6:10 pm-9:15 am

1 stop20h 05m

Sydney Kingsford Smith

sáb. 1/17

11:20 am-6:00 am

Nonstop13h 40m

$860

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

mié. 12/3

4:15 pm-9:15 am

1 stop22h 00m

Sydney Kingsford Smith

jue. 12/18

11:20 am-6:00 am

Nonstop13h 40m

$861

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

dom. 1/25

12:00 pm-9:15 am

1 stop26h 15m

Sydney Kingsford Smith

jue. 3/26

10:20 am-6:00 am

Nonstop13h 40m

$861

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

mié. 1/28

9:40 pm-6:20 am

1 stop37h 40m

Sydney Kingsford Smith

mié. 2/11

2:00 pm-2:58 pm

1 stop19h 58m

$861

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

jue. 12/4

2:30 pm-9:15 am

1 stop23h 45m

Sydney Kingsford Smith

mar. 12/9

11:20 am-6:00 am

Nonstop13h 40m

$861

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

sáb. 12/6

1:33 pm-9:15 am

1 stop24h 42m

Sydney Kingsford Smith

mar. 1/13

11:20 am-6:00 am

Nonstop13h 40m

$861

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from Irvine to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Irvine 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 Irvine to Sydney

How far ahead should I book a flight from Irvine to Sydney?

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Sydney. Price data was last updated on October 31, 2025.

The best time to book flights from Irvine to Sydney is 64 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 Irvine to Sydney?

Currently, January is the cheapest month in which you can book a flight from Irvine to Sydney (average of $530). Flying from Irvine to Sydney in December is currently the most expensive (average of $855). 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 IR9 to SYD?

Find hourly flight availability from Irvine 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 noviembre 2, 2025.

It’s typically best to fly out from Irvine to Sydney in the morning. Doing so could potentially save you 12% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Irvine to Sydney?

Use this chart to determine the cheapest time to fly round-trip from Irvine to Sydney. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Irvine to Sydney flight should consider departing on Friday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 noviembre 2, 2025.
Read through reviews of airlines operating flights from Irvine to Sydney, such as Fiji Airways, Delta, and Qantas Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Fiji Airways
8.0
Very good
208 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.5

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Fiji Airways
8.0
Very good
208 reviews
Fiji Airways
8.0
Very good
208 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.5

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Delta
7.9
Good
8,001 reviews
Fiji Airways
8.0
Very good
208 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.5

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Qantas Airways
7.5
Good
926 reviews
Fiji Airways
8.0
Very good
208 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.5

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
United Airlines
7.4
Good
8,997 reviews
Fiji Airways
8.0
Very good
208 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.5

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
American Airlines
7.2
Good
11,036 reviews
Fiji Airways
8.0
Very good
208 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.5

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

Related info for your journey

Find useful and relevant information for your journey from Irvine to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sydney from Irvine?

    For a flight from Irvine to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 4.6 mi from the center of the city. Kingsford Smith is the only Sydney airport and it handles 5 inbound flights from Irvine per day. 13 airlines have flights to Sydney Kingsford Smith from Irvine on a regular basis.

  • How popular is this Irvine to Sydney flight route?

    The Irvine to Sydney Kingsford Smith flight path was viewed by 58 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Irvine to Sydney?

    Airlines like United Airlines fly from Irvine to Sydney in about 18h 10m. The time it takes to get you to your destination can typically vary by up to . The distance from Irvine to Sydney is about 7489 mi.

  • What are the most reliable airlines from Irvine to Sydney?

    Before booking your flight to Sydney from Irvine, check out the most reliable airlines to get you to your destination on time: KLM (79%), Air France (79%), Delta( 79%).

  • What are the cheapest flights from Irvine to Sydney?

    Looking for the cheapest flight from Irvine to Sydney? While on average our users pay $3,213, our data indicates the cheapest price to be $433. The most popular route (Los Angeles - Sydney Kingsford Smith), is priced around $736.

  • Can I find deals for flights from Irvine to Sydney that include hotel bookings?

    Yes. In addition to deals on Irvine to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Irvine to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Irvine to Sydney.

  • Can I find deals for business class flights from Irvine to Sydney?

    Yes. Cheapflights offers flight deals from Irvine 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 Irvine to Sydney?

    Currently, January is the cheapest month in which you can book a flight from Irvine to Sydney (average of $530). Flying from Irvine to Sydney in December is currently the most expensive (average of $855). 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

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Top 10 airlines flying from Irvine to Sydney

Discover the top 10 airlines that operate flights from Irvine 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 noviembre 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$231Average$865FlexibilityNo cancel feeOn-time60%
ANACheapest$405Average$755FlexibilityNo cancel feeOn-time80%
Virgin AustraliaCheapest$455Average$985FlexibilityNo cancel feeOn-time80%
Hawaiian AirlinesCheapest$499Average$987FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$579Average$885FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$662Average$811FlexibilityNo cancel feeOn-time74%
DeltaCheapest$715Average$1,074FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$741Average$1,039FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$795Average$995FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$802Average$1,060FlexibilityNo cancel feeOn-time74%

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