Find cheap United Airlines flights to Sydney
SEA — SYD
Nov 1 — Nov 81
Round-trip
1 adult, Economy
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Cheapest United Airlines flights from USA to SydneyExplore the most affordable United Airlines flight options available from USA to Sydney. Find the lowest fares with prices last updated on October 2, 2026.
Explore the most affordable United Airlines flight options available from USA to Sydney. Find the lowest fares with prices last updated on October 2, 2026.
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/184:10 pm -
1 stop21h 45m
Mon 11/210:55 am -
Nonstop13h 45m
Deal found 9/29![United Airlines logo]()
$1,001
This United Airlines deal was found by Cheapflights users on 10/2. 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.
Tue 10/201:25 pm -
1 stop24h 30m
Tue 11/311:20 am -
Nonstop13h 45m
Deal found 10/2![United Airlines logo]()
$1,005
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Wed 10/218:21 pm -
1 stop17h 34m
Wed 10/2810:55 am -
Nonstop13h 45m
Deal found 10/1![United Airlines logo]()
$1,006
Best United Airlines flights from USA to SydneyDiscover carefully curated United Airlines flight deals from USA to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 2, 2026.
Discover carefully curated United Airlines flight deals from USA to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 2, 2026.
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Sun 3/2810:40 pm -
Nonstop15h 20m
Tue 5/49:30 am -
Nonstop13h 40m
Deal found 10/1![United Airlines logo]()
$1,009
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Sun 10/184:10 pm -
1 stop21h 45m
Mon 11/210:55 am -
Nonstop13h 45m
Deal found 9/30![United Airlines logo]()
$1,016
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Sun 11/226:40 pm -
1 stop19h 40m
Mon 12/1411:50 am -
1 stop22h 45m
Deal found 9/30![United Airlines logo]()
$1,021
Direct United Airlines flights from USA to SydneyExplore non-stop United Airlines flight options from USA to Sydney based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 2, 2026.
Explore non-stop United Airlines flight options from USA to Sydney based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 2, 2026.
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Sun 3/2810:40 pm -
Nonstop15h 20m
Mon 5/39:30 am -
Nonstop13h 40m
Deal found 10/1![United Airlines logo]()
$1,009
This United Airlines deal was found by Cheapflights users on 10/2. 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.
Wed 12/210:40 pm -
Nonstop15h 25m
Wed 12/911:20 am -
Nonstop13h 45m
Deal found 10/2![United Airlines logo]()
$1,012
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Tue 12/110:40 pm -
Nonstop15h 25m
Wed 12/911:20 am -
Nonstop13h 45m
Deal found 10/1![United Airlines logo]()
$1,013
Last-minute United Airlines flights from USA to SydneyDiscover last-minute United Airlines flight deals from USA to Sydney. Data last updated October 2, 2026 and is based on user searches.
Discover last-minute United Airlines flight deals from USA to Sydney. Data last updated October 2, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/184:10 pm -
1 stop21h 45m
Mon 11/210:55 am -
Nonstop13h 45m
Deal found 9/29![United Airlines logo]()
$1,001
This United Airlines deal was found by Cheapflights users on 10/2. 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.
Tue 10/201:25 pm -
1 stop24h 30m
Tue 11/311:20 am -
Nonstop13h 45m
Deal found 10/2![United Airlines logo]()
$1,005
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Wed 10/218:21 pm -
1 stop17h 34m
Wed 10/2810:55 am -
Nonstop13h 45m
Deal found 10/1![United Airlines logo]()
$1,006
One-way United Airlines flights to SydneySearch for one-way United Airlines flight options to Sydney. Find affordable one-way fares based on user searches. Data last updated October 2, 2026.
Search for one-way United Airlines flight options to Sydney. Find affordable one-way fares based on user searches. Data last updated October 2, 2026.
This United Airlines deal was found by Cheapflights users on 9/27. 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 3/229:35 pm -
1 stop17h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![United Airlines logo]()
$517
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Sun 1/3110:40 pm -
Nonstop15h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![United Airlines logo]()
$521
This United Airlines deal was found by Cheapflights users on 9/27. 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.
Wed 11/410:40 pm -
Nonstop15h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![United Airlines logo]()
$522
Flights to Sydney with United Airlines at a glance
Find detailed information about United Airlines flights from USA to Sydney. Explore the options provided by United Airlines to plan your journey from USA to Sydney. Data last updated October 2, 2026.
Cheapflights Insights
Find cheap United Airlines flights to Sydney
US0-SYD
LAX-SYD
How long is the flight to Sydney with United Airlines?
On average, United Airlines flights from the United States to Sydney take 17 hours 12 minutes. Flights to Sydney from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.
United Airlines weekly flight availability to Sydney
The most flights to Sydney operated by United Airlines are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).
When is the best time to book a flight to Sydney with United Airlines?
The best time to book a flight to Sydney with United Airlines is 50 days before departure. On average, fares are higher if you book 87 days before departure.
FAQs about flights to Sydney with United Airlines
Reviews of United Airlines
See what Cheapflights users have to say about their United Airlines experience.
Overview
Reviews
United Airlines
10,000 reviews
Overview
Food
6.7
Boarding
7.7
Entertainment
7.1
Crew
8.1
Comfort
7.3
Recent reviews
10.0
|Oct 2026Is good
10.0
|Sep 2026Everything was good
8.0
|Sep 2026The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
10.0
|Aug 2026Staff friendly, good boarding experience
4.0
|Aug 2026Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
1 out of 3334
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