Are direct flights from Seattle to Sydney always the best option?

Direct flights offer convenience and save travel time, but they are not always the cheapest option. Flights with layovers can sometimes be significantly more affordable. Consider your budget and time constraints when deciding between direct and connecting flights.

Can flexible travel dates help on Seattle to Sydney flights?

Yes, being flexible with your travel dates can often lead to finding cheaper flights. Prices can vary significantly depending on the day of the week or season. Using a flexible date search tool may reveal more economical travel periods.

What extra costs should I check before booking Seattle to Sydney flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight meal costs. Some airlines may also charge for printing boarding passes at the airport. Being aware of these can help you calculate the true total cost of your trip.

Flights From Seattle

To Sydney

Cheap Flights from Seattle to Sydney

Browse current best options from Seattle. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Seattle

RatePunk searches hundreds of travel sites at once for deals on flights to Sydney

Prices updated 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from Seattle to Sydney

Explore current cheapest deals departing from Seattle to Sydney

2026-08-25 – 2026-09-08
SEA - Sydney
82% AI deal score
$1,065
$965
Round trip
2026-08-02 – 2026-08-09
SEA - Sydney
85% AI deal score
$1,175
$973
Round trip
2026-08-02 – 2026-08-16
SEA - Sydney
81% AI deal score
$1,099
$975
Round trip
2026-08-12 – 2026-08-26
SEA - Sydney
81% AI deal score
$1,087
$977
Round trip
2026-08-16 – 2026-08-23
SEA - Sydney
82% AI deal score
$1,131
$977
Round trip
2026-08-17 – 2026-08-24
SEA - Sydney
82% AI deal score
$1,131
$977
Round trip
2026-08-09 – 2026-08-16
SEA - Sydney
82% AI deal score
$1,144
$977
Round trip
2026-08-19 – 2026-08-30
SEA - Sydney
81% AI deal score
$1,083
$978
Round trip
2026-11-01 – 2026-11-11
SEA - Sydney
80% AI deal score
$1,104
$979
Round trip
2026-08-12 – 2026-08-24
SEA - Sydney
81% AI deal score
$1,086
$981
Round trip

Seattle to Sydney: Overview

Insights for flights from Seattle to Sydney

A typical journey from Seattle to Sydney takes about 39h 20m, including connections. Given that most itineraries for this route involve at least one stopover, this duration reflects the common travel experience, which often includes layovers.

For travelers seeking cheap flights from Seattle to Sydney, prices typically range from $824–$1737, with a median of $1305. Right now, current fares are above the typical level. Only 5% of recent fares were classified as a good price, indicating that finding significantly lower prices can be challenging.

When considering the cheapest time to fly from Seattle to Sydney, November stands out with a median fare of $704. Following closely, December offers a median of $797, and January presents a median of $894. These months generally provide more budget-friendly options compared to other times of the year.

There are currently no direct flights from Seattle to Sydney. Most itineraries connect at least once, with the typical number of connections being 2. This means travelers should anticipate stopovers as part of their journey to Sydney.

The distance from Seattle to Sydney is approximately 12,472 kilometers, classifying this as a long-haul international route. This significant distance contributes to the extended travel times and the necessity for connecting flights.

How much is a round trip from Seattle to Sydney

Regular price: $985 - $1,729

Prices are currently below the regular range for flights from Seattle to Sydney.

The regular price range for flights from Seattle to Sydney is $985 to $1729. The current lowest deal is $926 with Frontier Airlines for travel from Nov 9-Nov 18.

now $926

Low $985

High $1,729

The cheapest time to fly from Seattle to Sydney

The cheapest month to fly from Seattle to Sydney is November, with a median price of $704. The most expensive month is February, with a median price of $1669. Prices are generally lower from January to December.

November

Cheapest

Flights from $704

February

Most Expensive

Flights from $1,669

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Seattle to Sydney

United Airlines

Alaska Airlines, Inc.

Air Canada

Turkish Airlines

Last-minute flights going from Seattle to Sydney

Sat, Aug 1

⌛ Last-Minute

SEA - Sydney

Seattle (SEA) - Sydney (SYD)

QantasLink

$1,271

$1,175

One-way

Mon, Aug 3

⌛ Last-Minute

SEA - Sydney

Seattle (SEA) - Sydney (SYD)

All Nippon Airways

$1,103

$995

One-way

Mon, Aug 3

⌛ Last-Minute

SEA - Sydney

Seattle (SEA) - Sydney (SYD)

American Airlines

$1,192

$1,035

One-way

Mon, Aug 3

⌛ Last-Minute

SEA - Sydney

Seattle (SEA) - Sydney (SYD)

Deutsche Luft Hansa

$1,110

$1,038

One-way

Mon, Aug 3

⌛ Last-Minute

SEA - Sydney

Seattle (SEA) - Sydney (SYD)

Alaska Airlines, Inc.

$1,244

$1,198

One-way

Tue, Aug 4

⌛ Last-Minute

SEA - Sydney

Seattle (SEA) - Sydney (SYD)

Alaska Airlines, Inc.

$1,247

$1,048

One-way

Biggest price drops on these dates for flights from Seattle to Sydney

15 nights

Nov 7 - Nov 22

$1,598 → $989

38%

9 nights

Dec 9 - Dec 18

$1,713 → $1,254

27%

3 nights

Oct 17 - Oct 20

$1,455 → $1,034

29%

18 nights

Dec 11 - Dec 29

$1,451 → $1,104

24%

Popular Airports to fly from Seattle to Sydney

Seattle - Sydney route insights

💸 Price insights

Recent fares are above the typical level

Recent fares for Seattle to Sydney are above the typical level at $926.

📅 Best time to fly

November is historically cheapest at $704

Historically, November is the cheapest month to fly from Seattle to Sydney, with a median price of $704.

⏱️ Flight duration

Connecting flights average 39h 20m

Flights from Seattle to Sydney typically involve connections, with a median duration of 39h 20m.

✈️ Airlines & availability

Connecting flights are dominant

This route is dominated by connecting flights, with no direct flights available in recent data.

🏆 Airline highlight

Frontier Airlines offers a recent deal

Frontier Airlines recently offered a deal for $926 from Seattle to Sydney.

🎯 Booking tip

Deals appear frequently on this route

Deals for flights from Seattle to Sydney appear frequently, offering good opportunities to save.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International is a major airport for flights from Seattle to Sydney.

📍 ~20 km from Seattle city center (reachable by car or train).

💸 Flights from ~$914

Sydney main airports to arrive at

Sydney (SYD)

Cheapest

Sydney Airport is the primary international gateway for travelers arriving in Sydney from Seattle.

📍 ~8 km from city center (reachable by car)

💸 Flights from ~$914

Airports nearby Sydney used as alternative

Canberra (CBR)

Canberra Airport is a major domestic and international-capable airport, offering a full range of cabin classes.

📍 ~240 km from Sydney (approximately 3 hours drive from Sydney city center)

💸 Flights from ~$1,320

Business & First Class Flight Deals to Sydney

93% AI deal score

$6,751

$4,780

Save $1,971

Frequently Asked Questions About Flights to Sydney

Finding cheap flights often involves comparing prices from various airlines and online travel agencies. Consider being flexible with your travel dates and looking into different times of the year. Setting up price alerts can also help you monitor fare changes.

Booking flights in advance can often lead to better deals, especially for international routes. However, prices can fluctuate, so it's wise to monitor fares over a period. Last-minute bookings may sometimes offer savings, but this is less common for long-haul travel.

Comparing nearby airports can sometimes uncover more affordable flight options. While it may add to your ground transportation, the potential savings on airfare can be significant. Always factor in the total travel time and cost when considering this approach.

Related routes

More routes from Seattle

Flights from Seattle to Edmonton Flights from Seattle to Montreal Flights from Seattle to Taipei Flights from Seattle to Tampa Flights from Seattle to Tel Aviv Flights from Seattle to Thiruvananthapuram Flights from Seattle to Tokyo Flights from Seattle to Toronto Flights from Seattle to Tucson Flights from Seattle to Vienna Flights from Seattle to Washington, D.C.Flights from Seattle to Wellington

Flights to Sydney from other cities

Flights from Salt Lake City to Sydney Flights from San Francisco to Sydney Flights from Seoul to Sydney Flights from Shanghai to Sydney Flights from Singapore to Sydney Flights from St. Louis to Sydney Flights from Taipei to Sydney Flights from Tamworth to Sydney Flights from Tauranga to Sydney Flights from Tel Aviv to Sydney Flights from Toowoomba to Sydney Flights from Townsville to Sydney

Seattle to Sydney: Overview

Insights for flights from Seattle to Sydney

How much is a round trip from Seattle to Sydney

Regular price: $985 - $1,729

Prices are currently below the regular range for flights from Seattle to Sydney.

The regular price range for flights from Seattle to Sydney is $985 to $1729. The current lowest deal is $926 with Frontier Airlines for travel from Nov 9-Nov 18.

now $926

Low $985

High $1,729

The cheapest time to fly from Seattle to Sydney

November

Cheapest

Flights from $704

February

Most Expensive

Flights from $1,669

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec