HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sydney

$412+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SYD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Irvine to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Cheap 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 December 18, 2025.

This BestPriceTravel deal was found by Cheapflights users on 12/17. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:50 pmLAX - SYD
Nonstop15h 10mQantas Airways
Sun 2/811:20 amSYD - LAX
Nonstop13h 45mQantas Airways
Deal found 12/17$803
This CrystalTravel deal was found by Cheapflights users on 12/17. 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 12/2410:50 pmLAX - SYD
Nonstop15h 10mQantas Airways
Wed 1/145:45 pmSYD - LAX
Nonstop13h 45mQantas Airways
Deal found 12/17$816
This oojo deal was found by Cheapflights users on 12/16. 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 12/3110:50 pmLAX - SYD
Nonstop15h 10mQantas Airways
Sat 1/177:15 pmSYD - LAX
1 stop30h 45mQantas Airways
Deal found 12/16$825
This oojo deal was found by Cheapflights users on 12/17. 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.
Sat 12/209:25 pmLAX - SYD
Nonstop15h 00mQantas Airways
Mon 1/127:15 pmSYD - LAX
1 stop30h 45mQantas Airways
Deal found 12/17$831
This oojo deal was found by Cheapflights users on 12/16. 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 12/259:25 pmLAX - SYD
Nonstop15h 00mQantas Airways
Mon 1/267:15 pmSYD - LAX
1 stop30h 45mQantas Airways
Deal found 12/16$832
This oojo deal was found by Cheapflights users on 12/16. 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 12/3110:50 pmLAX - SYD
Nonstop15h 10mQantas Airways
Wed 1/215:50 pmSYD - LAX
1 stop32h 10mQantas Airways
Deal found 12/16$847
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Sun 12/2810:55 pmLAX - SYD
Nonstop15h 10mUnited Airlines
Mon 1/1211:20 amSYD - LAX
Nonstop13h 40mUnited Airlines
Deal found 12/17$856
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Mon 12/294:10 pmLAX - SYD
1 stop22h 05mUnited Airlines
Mon 1/1211:20 amSYD - LAX
Nonstop13h 40mUnited Airlines
Deal found 12/17$857
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Sun 12/2810:55 pmLAX - SYD
Nonstop15h 10mUnited Airlines
Tue 1/1311:20 amSYD - LAX
Nonstop13h 40mUnited Airlines
Deal found 12/17$858

Find flight deals from Irvine to Sydney

Keep the following information in mind while searching for Irvine to Sydney flight deals. Data was last updated December 18, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$794
(Ovago)

One-way from

$412
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$1,251
Provider with most accurate pricing for Los Angeles-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Sydney Kingsford Smith flights.
Search Deals
From Irvine to Sydney Kingsford Smith
Search Deals
One-way flight from Irvine to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($126 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 18, 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

Sat 1/31

10:35 pm-12:35 pm

1 stop19h 00m

Sydney Kingsford Smith

Tue 2/17

2:00 pm-12:00 pm

1 stop17h 00m

$838

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Mon 12/29

10:55 pm-9:05 am

Nonstop15h 10m

Sydney Kingsford Smith

Mon 1/12

11:20 am-6:00 am

Nonstop13h 40m

$857

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Mon 2/2

10:20 pm-8:30 am

Nonstop15h 10m

Sydney Kingsford Smith

Tue 3/3

2:15 pm-9:00 am

Nonstop13h 45m

$859

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Mon 1/26

10:55 pm-9:05 am

Nonstop15h 10m

Sydney Kingsford Smith

Wed 2/4

11:20 am-6:00 am

Nonstop13h 40m

$859

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Sun 1/25

10:30 pm-8:30 am

Nonstop15h 00m

Sydney Kingsford Smith

Sun 2/15

10:40 am-5:40 am

Nonstop14h 00m

$859

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Tue 2/17

5:20 pm-9:15 am

1 stop20h 55m

Sydney Kingsford Smith

Wed 3/4

11:20 am-6:00 am

Nonstop13h 40m

$859

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Sun 12/28

10:55 pm-9:05 am

Nonstop15h 10m

Sydney Kingsford Smith

Mon 1/12

11:20 am-6:00 am

Nonstop13h 40m

$860

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Sat 2/21

10:35 pm-9:05 am

Nonstop15h 30m

Sydney Kingsford Smith

Mon 3/9

10:20 am-6:00 am

Nonstop13h 40m

$862

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Mon 2/2

10:26 am-6:20 am

1 stop24h 54m

Sydney Kingsford Smith

Thu 2/12

11:20 am-6:00 am

Nonstop13h 40m

$862

Los AngelesSydney

LAX - SYD

LAXSYD

Los Angeles

Wed 2/4

5:20 pm-9:15 am

1 stop20h 55m

Sydney Kingsford Smith

Fri 2/13

11:20 am-6:00 am

Nonstop13h 40m

$862

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 23 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 December 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, January is the cheapest month in which you can book a flight from Irvine to Sydney (average of $467). Flying from Irvine to Sydney in December is currently the most expensive (average of $800). 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 December 18, 2025.

It’s typically best to fly out from Irvine to Sydney in the evening. 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.

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 December 18, 2025.

The most flights from IR9 to SYD are scheduled on a Monday (18 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (9 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 December 18, 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
8.1
Very good
210 reviews

Entertainment

7.5

Crew

8.5

Overall

8.1

Boarding

8.2

Food

7.5

Comfort

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Fiji Airways
8.1
Very good
210 reviews
Fiji Airways
8.1
Very good
210 reviews

Entertainment

7.5

Crew

8.5

Overall

8.1

Boarding

8.2

Food

7.5

Comfort

8.0

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
8,005 reviews
Fiji Airways
8.1
Very good
210 reviews

Entertainment

7.5

Crew

8.5

Overall

8.1

Boarding

8.2

Food

7.5

Comfort

8.0

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
947 reviews
Fiji Airways
8.1
Very good
210 reviews

Entertainment

7.5

Crew

8.5

Overall

8.1

Boarding

8.2

Food

7.5

Comfort

8.0

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
9,091 reviews
Fiji Airways
8.1
Very good
210 reviews

Entertainment

7.5

Crew

8.5

Overall

8.1

Boarding

8.2

Food

7.5

Comfort

8.0

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
11,054 reviews
Fiji Airways
8.1
Very good
210 reviews

Entertainment

7.5

Crew

8.5

Overall

8.1

Boarding

8.2

Food

7.5

Comfort

8.0

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 12 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 67 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 Fiji Airways, United Airlines, and Delta fly from Irvine to Sydney in about 15h 10m. The time it takes to get you to your destination can typically vary by up to 3h 50m. 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 Fiji Airways, with whom users have recently found tickets for as low as $323. However, be on the lookout for offers from Alaska Airlines and Hawaiian 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: KLM (61%), American Airlines (56%), Alaska Airlines( 56%).

  • What are the cheapest flights from Irvine to Sydney?

    Looking for the cheapest flight from Irvine to Sydney? While on average our users pay $3,134, our data indicates the cheapest price to be $405. The most popular route (Los Angeles - Sydney Kingsford Smith), is priced around $701.

  • 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 $467). Flying from Irvine to Sydney in December is currently the most expensive (average of $800). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Irvine to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Sydney flights
San Francisco to Sydney flights
Ontario to Sydney flights
Santa Ana to Sydney flights
San Diego to Sydney flights
San Jose to Sydney flights
Sacramento to Sydney flights
Long Beach to Sydney flights
Las Vegas to Sydney flights
Oakland to Sydney flights
Fresno to Sydney flights
Medford to Sydney flights
Burbank to Sydney flights
Reno to Sydney flights
San Francisco to Coolangatta flights
Los Angeles to Coolangatta flights
Palm Springs to Sydney flights
Santa Rosa to Sydney flights
San Luis Obispo to Sydney flights
San Francisco to Albury flights
San Francisco to Wagga Wagga flights
San Diego to Coolangatta flights
San Francisco to Coffs Harbour flights
San Francisco to Armidale flights
Ontario to Coolangatta flights
San Francisco to Port Macquarie flights
San Jose to Coolangatta flights
San Francisco to Tamworth flights
San Francisco to Ballina flights
San Francisco to Lord Howe Island flights
Monterey to Sydney flights
Arcata to Sydney flights

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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$231Average$856FlexibilityNo cancel feeOn-time60%
ANACheapest$405Average$755FlexibilityNo cancel feeOn-time80%
Virgin AustraliaCheapest$455Average$985FlexibilityNo cancel feeOn-time80%
Hawaiian AirlinesCheapest$499Average$866FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$579Average$874FlexibilityNo cancel feeOn-time67%
DeltaCheapest$581Average$1,063FlexibilityNo cancel feeOn-timeN/A
Fiji AirwaysCheapest$654Average$797FlexibilityNo cancel feeOn-time74%
Alaska AirlinesCheapest$741Average$1,021FlexibilityNo cancel feeOn-time75%
Qantas AirwaysCheapest$786Average$1,008FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$795Average$986FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.