Cheap flights from Seattle-Tacoma International (SEA) to Sydney (SYD)

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The best prices from Seattle-Tacoma International to Sydney are usually found in May or March, booked 58 days in advance, depart on a Tuesday or Monday and return on a Thursday

How to find the cheapest flight from
Seattle-Tacoma International (SEA) to Sydney (SYD)

All the information you need to plan the best SEA to SYD flight in 2021: compare Seattle-Tacoma International to Sydney flight prices with the expected peak season, weather and rainfall in Sydney.
SEA - SYD
Price
$928 - $1,613
SYD
Temperature
32 - 75.2 °F
SYD
Rainfall
3.3 - 6.3 inches

Popular in

December

High demand for flights, 34% potential price rise

Cheapest in

May

Best time to find cheap flights, 13% potential price drop

Average price

$928

Average for round-trip flights in May 2021

Round-trip from

$928

From Seattle-Tacoma International to Sydney

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle-Tacoma International to Sydney?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 20% when planning your travel around this day of the week.

How far in advance should I book a flight from Seattle-Tacoma International to Sydney?

Find a great deal and save up to 14% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Seattle-Tacoma International to Sydney within the next two weeks, with the cheapest ticket starting at $1,179.

What is the cheapest month to fly from Seattle-Tacoma International to Sydney?

Flights from Seattle-Tacoma International to Sydney lean towards being more expensive in December. Prices are generally better when you fly from Seattle-Tacoma International to Sydney in July, with the cheapest ticket starting at $635.

When is the cheapest time to fly from Seattle-Tacoma International to Sydney (SEA - SYD)?

A simple way to save on the total cost of your ticket is to fly from Seattle-Tacoma International to Sydney in the afternoon. If you’re flexible enough to do this you can expect to save up to 20% on your trip compared to booking a flight in the evening.

Cheap flights from Seattle-Tacoma International to Sydney in May, June 2021

The best prices found for SEA to SYD flights for May, June
30 Jun - 15 Jul
$1,900pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Japan Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
29 Jun - 20 Jul
$1,954pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl
30 Jun - 15 Jul
$1,958pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl

Seattle-Tacoma International to Sydney 2021 flight deals

Cheap flights to Sydney from Seattle-Tacoma International found for this year
1 Dec - 11 Jan
$961pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
3 Dec - 10 Jan
$969pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
1 Dec - 15 Jan
$973pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle-Tacoma International to Sydney

Late deals on round-trip flights to Sydney from Seattle-Tacoma International, departing today and this week
16 May - 27 Jun
$2,663pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Qatar Airways
 
1 STOP
SEA
Seattle/Tacoma Intl
16 May - 27 Jun
$2,876pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
16 May - 27 Jun
$3,034pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to Sydney from Seattle-Tacoma International

The cheapest one-way flights from Seattle-Tacoma International to Sydney
1:05 pm - 3:35 pm
Malaysia Airlines
2 Stops
57h 30m
SEA - SYD
Malaysia Airlines
$1,110
KAYAK
11:55 am - 2:10 am
Japan Airlines
2 Stops
45h 15m
SEA - SYD
Japan Airlines
$1,750
Fareboom
9:57 am - 7:45 am
Fiji Airways
3 Stops
52h 48m
SEA - SYD
Fiji Airways
$1,785
Travelgenio

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle-Tacoma International</span> to <span class="emphasized">Sydney</span> flights.

Flight FAQs

From Seattle-Tacoma International to Sydney

Are flight prices decreasing from Seattle to Sydney due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Seattle and Sydney for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Seattle/Tacoma Intl to Sydney Kingsford Smith to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Alaska Airlines is one of them. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from Seattle/Tacoma Intl to Sydney Kingsford Smith. Policies will vary by airline.

Which airlines flying from Seattle/Tacoma Intl to Sydney Kingsford Smith have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Air Canada, Air New Zealand, and Qantas Airways flying from Seattle/Tacoma Intl to Sydney Kingsford Smith have implemented new flexible cancellation policies.

Can I find flights from Seattle-Tacoma International to Sydney for under $1,100 on Cheapflights?

Yes, there are multiple flights from Seattle-Tacoma International to Sydney for under $1,100. The cheapest flight booked recently is on Multiple Airlines for just $1,065, but on average you can expect to pay $1,497.

Are there nonstop flights from Seattle-Tacoma International to Sydney for under $1,100 on Cheapflights?

There are no nonstop flights from Seattle-Tacoma International to Sydney, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Seattle-Tacoma International to Sydney for under $2,700?

There are currently 6+ open flights from Seattle-Tacoma International to Sydney within the next 7 days for less than $2,700.

How popular is this flight route?

The Seattle/Tacoma Intl to Sydney Kingsford Smith flight path was viewed by 54 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Does it rain more in Seattle or Sydney?

The rainfall in Seattle is generally more than the rainfall in Sydney. This will continue over the next 17 days.

Is Seattle weather warmer or cooler than Sydney?

Expect the weather to be around 81 °F on average in January. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Sydney is generally hotter than in Seattle.

How long is the flight from Seattle-Tacoma International to Sydney?

Airlines like Hawaiian Airlines, ANA, and Singapore Airlines fly from Seattle-Tacoma International to Sydney in about 17h 50m. The time it takes to get you to your destination can typically vary by up to 22h 20m. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Seattle-Tacoma International to Sydney round-trip?

Our cheapest airline available from Seattle-Tacoma International to Sydney is ANA. Our recent data shows that you can find tickets from as low as $1,632 on this airline. Additional options worth looking into are Hawaiian Airlines and Fiji Airways, starting at $1,645 and $1,771 round-trip.

What are the cheapest airlines to fly from Seattle-Tacoma International to Sydney one-way?

The cheapest airline one-way is Malaysia Airlines, with whom users have recently found tickets for as low as $1,110. However, be on the lookout for offers from Japan Airlines and Fiji Airways, as they are both options that can get you from Seattle-Tacoma International to Sydney for a low price.

Related searches

Flights to Sydney from Seattle-Tacoma International
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Destination information for Sydney

Things to know before you go - useful duration and weather info for your trip from Seattle-Tacoma International to Sydney.
Today's exchange rate
$1 = $1.28
Average temperature for May in Sydney
57.2 °F
Avg rainfall for May in Sydney
4.1 ″

Airports servicing Seattle

Airports servicing Sydney

Top 10 airlines flying from Seattle-Tacoma International to Sydney

The chart below displays the airlines Cheapflights users traveling from Seattle-Tacoma International to Sydney choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Alaska Airlines
$137 $217 No cancel fee 75%
Fiji Airways
$473 $908 No cancel fee 74%
China Eastern
$680 $1,007 No cancel fee 62%

We couldn't confirm the COVID-19 safety measures taken by China Eastern. Please check directly on their website for additional information.

American Airlines
$560 $1,060 No cancel fee 71%
Qantas Airways
$554 $1,088 No cancel fee 74%
Hawaiian Airlines
$799 $1,118 No cancel fee 85%
Virgin Australia
$646 $1,122 No cancel fee 80%
Delta
$137 $1,127 No cancel fee N/A
United Airlines
$198 $1,197 No cancel fee 69%
Japan Airlines
$658 $1,745 No cancel fee 79%

We couldn't confirm the COVID-19 safety measures taken by Japan Airlines. Please check directly on their website for additional information.

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