Sydney

$463+ 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SYD
Oct 15 — Oct 221
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Irvine to Sydney Kingsford Smith are usually found in February or August, booked 86 days in advance, depart on a Tuesday or Sunday and return on a Friday

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 September 15, 2025.

Round-trip from

$805
(CrystalTravel)

One-way from

$463
(Cheapflightsfares)

Popular in

December

Cheapest in

February

Average price

$971
From Irvine to Sydney Kingsford Smith
One-way flight from Irvine to Sydney Kingsford Smith
Highest demand for flights based on searches. 15% potential increase in price ($179 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Average for round-trip flights in September 2025

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 September 15, 2025.

This CrystalTravel deal was found by Cheapflights users on 9/12. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2610:45 pmLAX - SYD
Nonstop15h 15mQantas Airways
Sun 12/76:20 amSYD - LAX
1 stop19h 35mQantas Airways
Deal found 9/12$814
This Vliegwinkel deal was found by Cheapflights users on 9/14. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:55 pmLAX - SYD
1 stop18h 50mFiji Airways
Wed 11/56:00 amSYD - LAX
1 stop24h 50mFiji Airways
Deal found 9/14$827
This Trip.com deal was found by Cheapflights users on 9/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/213:52 pmLAX - SYD
2 stops29h 48mMultiple Airlines
Thu 11/132:00 pmSYD - LAX
1 stop16h 50mMultiple Airlines
Deal found 9/13$828
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:00 amLAX - SYD
2 stops38h 40mMultiple Airlines
Tue 9/236:00 amSYD - LAX
1 stop23h 55mMultiple Airlines
Deal found 9/15$831
This oojo deal was found by Cheapflights users on 9/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:45 pmLAX - SYD
1 stop18h 45mFiji Airways
Mon 11/172:00 pmSYD - LAX
1 stop16h 50mFiji Airways
Deal found 9/13$834
This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2611:55 pmLAX - SYD
1 stop28h 15mFiji Airways
Sun 11/232:00 pmSYD - LAX
1 stop16h 50mFiji Airways
Deal found 9/14$836
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1911:55 pmLAX - SYD
1 stop18h 50mFiji Airways
Sun 11/22:00 pmSYD - LAX
1 stop16h 50mFiji Airways
Deal found 9/13$837
This CheapOair deal was found by Cheapflights users on 9/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2710:45 pmLAX - SYD
Nonstop15h 15mQantas Airways
Tue 12/97:05 amSYD - LAX
1 stop18h 50mQantas Airways
Deal found 9/14$844
This oojo deal was found by Cheapflights users on 9/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:55 pmLAX - SYD
1 stop18h 50mFiji Airways
Tue 10/216:00 amSYD - LAX
1 stop24h 55mFiji Airways
Deal found 9/13$846
This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1811:55 pmLAX - SYD
1 stop19h 20mFiji Airways
Mon 10/206:00 amSYD - LAX
1 stop24h 55mFiji Airways
Deal found 9/14$847
This Jetabroad deal was found by Cheapflights users on 9/14. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:55 pmLAX - SYD
1 stop18h 50mFiji Airways
Mon 10/62:15 pmSYD - LAX
1 stop16h 40mFiji Airways
Deal found 9/14$856

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 September 15, 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

Tue 9/30

4:10 pm-6:55 am

1 stop21h 45m

Sydney Kingsford Smith

Tue 10/21

10:30 am-6:05 am

Nonstop13h 35m

$977

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Tue 9/23

4:20 pm-6:55 am

1 stop21h 35m

Sydney Kingsford Smith

Wed 10/15

10:30 am-6:05 am

Nonstop13h 35m

$977

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Mon 9/29

10:45 pm-7:00 am

Nonstop15h 15m

Sydney Kingsford Smith

Wed 10/15

11:20 am-5:42 pm

1 stop24h 22m

$983

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Wed 10/15

9:00 am-7:45 pm

2 stops40h 45m

Sydney Kingsford Smith

Sun 11/16

9:40 pm-9:30 pm

1 stop18h 50m

$1,083

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Thu 9/25

10:45 pm-7:00 am

Nonstop15h 15m

Sydney Kingsford Smith

Sat 10/11

11:20 am-10:35 am

1 stop17h 15m

$1,083

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Thu 10/16

5:15 pm-7:45 pm

2 stops32h 30m

Sydney Kingsford Smith

Thu 11/13

9:40 pm-7:22 pm

2 stops40h 42m

$1,090

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Thu 12/4

10:25 pm-8:30 am

Nonstop15h 05m

Sydney Kingsford Smith

Sun 12/21

10:40 am-5:40 am

Nonstop14h 00m

$1,123

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Wed 11/26

10:40 pm-9:05 am

Nonstop15h 25m

Sydney Kingsford Smith

Sun 12/7

11:20 am-6:00 am

Nonstop13h 40m

$1,123

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Sun 11/2

10:40 pm-9:05 am

Nonstop15h 25m

Sydney Kingsford Smith

Wed 11/19

11:20 am-6:00 am

Nonstop13h 40m

$1,123

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Thu 10/23

10:45 pm-8:00 am

Nonstop15h 15m

Sydney Kingsford Smith

Sat 11/1

11:05 am-6:45 am

Nonstop13h 40m

$1,123

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 23 results
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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 September 12, 2025.

The best time to book flights from Irvine to Sydney is 86 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, March is the cheapest month in which you can book a flight from Irvine to Sydney (average of $1,032). Flying from Irvine to Sydney in December is currently the most expensive (average of $1,627). 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 September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Irvine to Sydney as you normally would.

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 Saturday at noon when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Irvine to Sydney

Explore weekly flight availability from Irvine to Sydney. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 15, 2025.

The most flights from IR9 to SYD are scheduled on a Monday (18 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (18 on average).

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 September 15, 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.

Crew

8.5

Comfort

8.0

Overall

8.0

Entertainment

7.4

Boarding

8.1

Food

7.5

Reviews

1 / 16
6.0
Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

Crew

8.5

Comfort

8.0

Overall

8.0

Entertainment

7.4

Boarding

8.1

Food

7.5

Reviews

1 / 16
6.0
Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!
8.0
Very good

Crew

8.5

Comfort

8.0

Overall

8.0

Entertainment

7.4

Boarding

8.1

Food

7.5

Reviews

1 / 16
6.0
Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

Crew

8.5

Comfort

8.0

Overall

8.0

Entertainment

7.4

Boarding

8.1

Food

7.5

Reviews

1 / 16
6.0
Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

Crew

8.5

Comfort

8.0

Overall

8.0

Entertainment

7.4

Boarding

8.1

Food

7.5

Reviews

1 / 16
6.0
Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

Crew

8.5

Comfort

8.0

Overall

8.0

Entertainment

7.4

Boarding

8.1

Food

7.5

Reviews

1 / 16
6.0
Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

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 18 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?

  • How long is the flight from Irvine to Sydney?

    Airlines like United Airlines and Alaska Airlines fly from Irvine to Sydney in about 21h 45m. The time it takes to get you to your destination can typically vary by up to 19h. The distance from Irvine to Sydney is about 7489 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Irvine to Sydney one-way?

    The cheapest airline one-way is Philippine Airlines, with whom users have recently found tickets for as low as $505. However, be on the lookout for offers from Qantas Airways and United Airlines, as they are both options that can get you from Irvine to Sydney for a low price.

  • 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: Virgin Atlantic (74%), Aeromexico (70%), American Airlines( 69%).

  • What are the cheapest flights from Irvine to Sydney?

    Looking for the cheapest flight from Irvine to Sydney? While on average our users pay $3,314, our data indicates the cheapest price to be $511. The most popular route (Los Angeles - Sydney Kingsford Smith), is priced around $765.

  • 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, March is the cheapest month in which you can book a flight from Irvine to Sydney (average of $1,032). Flying from Irvine to Sydney in December is currently the most expensive (average of $1,627). 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 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$231Average$865FlexibilityNo cancel feeOn-time60%
ANACheapest$418Average$748FlexibilityNo cancel feeOn-time80%
Virgin AustraliaCheapest$455Average$985FlexibilityNo cancel feeOn-time80%
Hawaiian AirlinesCheapest$499Average$1,135FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$644Average$899FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$670Average$832FlexibilityNo cancel feeOn-time74%
Alaska AirlinesCheapest$741Average$1,101FlexibilityNo cancel feeOn-time75%
DeltaCheapest$791Average$1,079FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$796Average$1,032FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$811Average$1,094FlexibilityNo cancel feeOn-time69%

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