United Airlines Flights: Search & Compare Deals

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Return United Airlines flight deals

Compare return international and domestic flight deals from United Airlines recently found by momondo users

International

United Airlines

17 June

SYD09:30Sydney Kingsford Smith

13h 40m

LAX06:10Los Angeles Los Angeles

24 June

LAX22:45Los Angeles Los Angeles

15h 15m

SYD07:00Sydney Kingsford Smith

$1,220

United Airlines

3 Aug

SYD09:30Sydney Kingsford Smith

13h 40m

LAX06:10Los Angeles Los Angeles

12 Aug

LAX20:21Los Angeles Los Angeles

17h 34m

1 stop

SYD06:55Sydney Kingsford Smith

$1,223

United Airlines

10 June

SYD09:30Sydney Kingsford Smith

13h 40m

LAX06:10Los Angeles Los Angeles

22 July

LAX17:05Los Angeles Los Angeles

20h 50m

1 stop

SYD06:55Sydney Kingsford Smith

$1,225

United Airlines

16 Sept

SYD09:30Sydney Kingsford Smith

13h 40m

LAX06:10Los Angeles Los Angeles

26 Oct

LAX20:05Los Angeles Los Angeles

19h 10m

1 stop

SYD09:15Sydney Kingsford Smith

$1,227

United Airlines

18 Nov

MEL11:30Melbourne

14h 25m

LAX06:55Los Angeles Los Angeles

6 Dec

LAX13:20Los Angeles Los Angeles

25h 40m

1 stop

MEL10:00Melbourne

$1,258

United Airlines

22 July

SYD10:20Sydney Kingsford Smith

13h 30m

SFO06:50San Francisco

5 Aug

SFO23:00San Francisco

14h 55m

SYD06:55Sydney Kingsford Smith

$1,421

One-way United Airlines flight deals

Find and compare United Airlines flight prices for one-way international and domestic flights

International

United Airlines

4 June

SYD10:20Sydney Kingsford Smith

38h 19m

1 stop

LAX07:39Los Angeles Los Angeles

$753

United Airlines

23 July

SYD10:20Sydney Kingsford Smith

24h 45m

1 stop

LAX18:05Los Angeles Los Angeles

$755

United Airlines

23 July

SYD10:20Sydney Kingsford Smith

18h 37m

1 stop

LAX11:57Los Angeles Los Angeles

$757

United Airlines

6 July

SYD09:30Sydney Kingsford Smith

13h 40m

LAX06:10Los Angeles Los Angeles

$766

United Airlines

7 June

MEL09:30Melbourne

14h 15m

LAX06:45Los Angeles Los Angeles

$777

United Airlines

17 Nov

SYD12:10Sydney Kingsford Smith

13h 45m

SFO06:55San Francisco

$1,308

Quick facts about United Airlines

Find info about flight duration, flight prices, and popular routes for United Airlines

Cheapest Route	$70
Most Popular Route	SFO to LAX
Shortest Flight	0h 48m
Longest Flight	4h 39m

The cheapest route United Airlines flies is from Bozeman Gallatin Field to Newark for $70

Flying from San Francisco to Los Angeles Los Angeles is currently the most popular United Airlines route

The quickest United Airlines flight route is 0h 48m from Denver (DEN) to Cheyenne (CYS)

The longest United Airlines flight route is 4h 39m from Chicago (ORD) to Los Angeles (LAX)

Search flight deals

Information about flying with United Airlines

Does United Airlines have flights from Sydney Kingsford Smith?

Yes, United Airlines currently has 108 flights out of Sydney Kingsford Smith per week.

Where does United Airlines fly to?

United Airlines flies 1,629 different routes (651 international and 978 domestic) on a yearly basis. You can find United Airlines flights to 75 different countries. Based on our data, Sydney is the most popular domestic destination and flying to Chicago is the most popular international destination.

What are the top airports United Airlines serves?

Los Angeles Los Angeles is the top airport served by United Airlines. Denver Intl and San Francisco are also popular airports that United Airlines uses a routine basis.

How do I check the flight status for United Airlines?

Check the flight status for United Airlines using our real-time Flight Tracker. To get an update, type in either the airport name or the United Airlines flight number, then click Track Flight. We’ll show you information such as the gate number, departure time, and arrival time for United Airlines flights. If you want more information about a particular flight, feel free to call United Airlines at 131 777 or visit their website at united.com.

What is the cheapest domestic United Airlines flight?

At the moment, flying from Houston George Bush Intcntl to Atlanta Hartsfield-Jackson with 0 stops for $156 is the cheapest return domestic route that United Airlines offers. If you’re fine with booking a one-way domestic flight with United Airlines, then flying from Bozeman Gallatin Field to Newark with 0 stops for $70 is the cheapest option.

What are the bag size limits for United Airlines?

At the moment, United Airlines requires that checked bag dimensions be within 158cm. Your cabin bag can be 56x35x22cm or smaller. If you also have a personal item, then it should be no longer than 43x25x22cm.

United Airlines Reviews

7.4

Good9,749 verified ratings

7.7Boarding

7.1Entertainment

7.3Comfort

8.1Crew

6.6Food

4.0 Mediocre

Amber, May 2026

Crammed like sardines

8.0 Very Good

Amber, May 2026

I am still confused why airlines started boarding front to back. It makes the whole process difficult and awkward

8.0 Very Good

Amber, May 2026

The planes were full to the brim! I understand that is how they make their money, there was no room for my backpack overhead and got the great pleasure of bumping into and rubbing my butt on at least 9 arms. Other than that, the flight attendant let me get some much needed sleep.

10.0 Wonderful

Anonymous, May 2026

One of the best costumers service ever!!!

4.0 Mediocre

Anonymous, Apr 2026

The flight was on an Embraer 175. Boarding was in time and we even took off on time. Being a regional Jet, there was no food in Business Class despite the fact it was a flight over 2 hours.