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Sydney

Find cheap United Airlines flights to Sydney

CMH — SYD
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Find United Airlines flight deals to Sydney

Cheapest United Airlines flights from USA to Sydney
Explore the most affordable United Airlines flight options available from USA to Sydney. Find the lowest fares with prices last updated on July 27, 2026.

This United Airlines deal was found by Cheapflights users on 7/24. 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 7/295:05 pm
LAX
-
SYD
1 stop20h 50m
United Airlines
Sun 8/99:30 am
SYD
-
LAX
Nonstop13h 40m
United Airlines
Deal found 7/24$978
This United Airlines deal was found by Cheapflights users on 7/27. 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 7/2710:45 pm
LAX
-
SYD
Nonstop15h 15m
United Airlines
Mon 8/109:30 am
SYD
-
LAX
Nonstop13h 40m
United Airlines
Deal found 7/27$979
This United Airlines deal was found by Cheapflights users on 7/27. 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 8/1210:45 pm
LAX
-
SYD
Nonstop15h 15m
United Airlines
Wed 9/29:30 am
SYD
-
LAX
Nonstop13h 40m
United Airlines
Deal found 7/27$980

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 July 27, 2026.

Popular in

December

Cheapest in

February

Average price

$1,295

Round-trip from

$977

One-way from

$505

Good one-way deal

$1,107 or less
Highest demand for flights to Sydney with United Airlines; 5% potential price increase.
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Best time to find cheap flights to Sydney with United Airlines; 2% potential price drop.
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Average price for flights to Sydney with United Airlines (round-trip).
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United Airlines
  • United Airlines
  • 9/1-9/13
  • 1 total stop
  • 31h 14m total
  • USA to Sydney
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United Airlines
  • United Airlines
  • 9/15
  • 1 total stop
  • 17h 34m total
  • USA to Sydney
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Price to beat on a one-way flight from the United States to Sydney with United Airlines.
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Cheapflights Insights

Find cheap United Airlines flights to Sydney

How long is the flight to Sydney with United Airlines?

On average, United Airlines flights from the United States to Sydney take 17 hours 7 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 (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 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 80 days before departure.

FAQs about flights to Sydney with United Airlines

  • Which airport do United Airlines flights arrive at when travelling to Sydney?

    United Airlines flights on this route tend to land at Sydney Kingsford Smith Airport.

  • Is United Airlines the cheapest airline for a flight to Sydney?

    Flight prices will depend on many factors like date, time and cabin class so it is worth comparing flights before booking. Based on Cheapflights data the cheapest average return price for flights to Sydney tends to be with Frontier.

  • Are there alternative airlines other than United Airlines that fly to Sydney?

    Qantas Airways, American Airlines and Delta all fly to Sydney and offer an alternative to United Airlines.

  • How much is a flight to Sydney with United Airlines?

    The average price for a return flight with United Airlines is $1,448; with a one-way flight around $830.

See more FAQs

Reviews of United Airlines

See what Cheapflights users have to say about their United Airlines experience.
United Airlines
7.4
Good
10,000 reviews
Overview

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Popular United Airlines flights

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