
$774 Cheap United flights from Sydney to Seattle (SYD to SEA)
Find The Best Day To Fly from Sydney to Seattle
Amazing United SYD to SEA Flight Deals
The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $1,227 round trip and $774 one way. Prices and availability subject to change. Additional terms may apply.
Discover our best United flight from Sydney SYD to Seattle SEA
To find the best deals on flights to Sydney from Seattle with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from Sydney SYD to Seattle SEA with United
If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $1,227 to $1,227, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way United flights from Sydney SYD to Seattle SEA
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Sydney to Seattle costs from $774. Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Seattle SEA from Sydney SYD with United
To find a cheap United flight from Sydney SYD to Seattle SEA, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on United flights from Sydney SYD to Seattle SEA
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as September, or if you book a flight with a stopover.
Find nonstop flights from Sydney SYD to Seattle SEA with United
If you’re keen to be on Seattle soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for United flights from Sydney SYD to Seattle SEA
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Seattle SEA from Sydney SYD with United on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
---|---|---|---|
ORD | USA | O'Hare Intl. | 227 |
DEN | USA | Denver Intl. | 226 |
IAH | USA | George Bush Intercontinental | 136 |
IAD | USA | Washington Dulles Intl. | 100 |
SFO | USA | San Francisco Intl. | 64 |
LAX | USA | Los Angeles Intl. | 23 |
EWR | USA | Liberty Intl. | 20 |
FRA | DEU | Frankfurt Intl. | 19 |
NRT | JPN | Narita Intl. | 19 |
PEK | CHN | Capital Intl. | 16 |
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Reviewed on Apr 2, 2025

Reviewed on Apr 2, 2025

Reviewed on Mar 31, 2025
Popular United Flight Routes from SYD
Top United Flight Routes from SEA
Top Flights for United originating from SYD
Domestic
- Boston to Orlando (BOS - MCO)
- Philadelphia to San Juan (PHL - SJU)
- Los Angeles to Tokyo (LAX - HND)
- San Juan to Orlando (SJU - MCO)
- Newark Liberty Intl. Airport to Las Vegas (EWR - LAS)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- Newark Liberty Intl. Airport to Fort Lauderdale (EWR - FLL)
- Orlando to San Juan (MCO - SJU)
- Atlanta to Newark Liberty Intl. Airport (ATL - EWR)
International
- Philadelphia to San Juan (PHL - SJU)
- Los Angeles to Tokyo (LAX - HND)
- Newark Liberty Intl. Airport to Fort Lauderdale (EWR - FLL)
- Chicago to Las Vegas (ORD - LAS)
- Orlando to San Juan (MCO - SJU)
- San Francisco to Tokyo (SFO - NRT)
- San Juan to Orlando (SJU - MCO)
- New York to Orlando (LGA - MCO)
- Newark Liberty Intl. Airport to San Juan (EWR - SJU)
- San Francisco to Tokyo (SFO - HND)