Cheap flights from Seattle (SEA) to Sydney (SYD)

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The best prices from Seattle 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 (SEA) to Sydney (SYD)

All the information you need to plan the best SEA to SYD flight in 2021: compare Seattle 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

$1,030

Average for round-trip flights in June 2021

Round-trip from

$928

From Seattle 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 to Sydney?

Users have found that flying from Seattle to Sydney on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

To save up to 14% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Seattle to Sydney from $1,179 1-2 weeks out and tickets from $1,248 for flights departing within the next 72 hours.

What is the cheapest month to fly from Seattle to Sydney?

July can be a great time to fly to Sydney from Seattle with a flight ticket averaging about $1,017. Cheapflights users have found deals in the month of July for as cheap as $635. The most expensive prices can be found in the month of December.

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

It’s optimal to fly from Seattle to Sydney in the afternoon. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight in the evening.

Cheap flights from Seattle to Sydney in June, July 2021

The best prices found for SEA to SYD flights for June, July
1 Jul - 4 Jul
$1,973pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Qatar Airways
 
1 STOP
SEA
Seattle/Tacoma Intl
6 Jul - 14 Jul
$1,977pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Qatar Airways
 
1 STOP
SEA
Seattle/Tacoma Intl
30 Jun - 7 Jul
$1,996pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Qatar Airways
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle to Sydney 2021 flight deals

Cheap flights to Sydney from Seattle found for this year
5 Sep - 9 Sep
$1,065pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
4 Oct - 14 Oct
$1,069pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
25 Nov - 8 Dec
$1,090pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Sydney

Late deals on round-trip flights to Sydney from Seattle, departing today and this week
22 Jun - 28 Jun
$3,643pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Qatar Airways
 
1 STOP
SEA
Seattle/Tacoma Intl
22 Jun - 28 Jun
$3,955pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Japan Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
22 Jun - 28 Jun
$4,583pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
SYD
Sydney Kingsford Smith
SYD
Sydney Kingsford Smith
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl

One-way flights to Sydney from Seattle

The cheapest one-way flights from Seattle to Sydney
1:05 pm - 3:35 pm
Malaysia Airlines
2 Stops
33h 30m
SEA - SYD
Malaysia Airlines
$1,123
KAYAK
10:30 am - 1:45 pm
Qatar Airways
1 Stop
32h 15m
SEA - SYD
Qatar Airways
$1,412
mytrip.com
9:30 pm - 7:50 am
Multiple Airlines
3 Stops
40h 20m
SEA - SYD
Multiple Airlines
$2,220
Kiwi.com

Related info for your journey

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

Flight FAQs

From Seattle 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 to Sydney for under $1,100 on Cheapflights?

Yes, there are multiple flights from Seattle 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 $1,194.

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

There are no nonstop flights from Seattle 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 to Sydney for under $3,700?

There are currently 8+ open flights from Seattle to Sydney within the next 7 days for less than $3,700.

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 15 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.

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

The cheapest airline one-way is Malaysia Airlines, with whom users have recently found tickets for as low as $1,064. However, be on the lookout for offers from Qatar Airways and United Airlines, as they are both options that can get you from Seattle to Sydney for a low price.

Destination information for Sydney

Things to know before you go - useful duration and weather info for your trip from Seattle to Sydney.
Today's exchange rate
$1 = $1.31
Average temperature for June in Sydney
68.0 °F
Avg rainfall for June in Sydney
3.3 ″

Airports servicing Seattle

Airports servicing Sydney

Top 10 airlines flying from Seattle to Sydney

The chart below displays the airlines Cheapflights users traveling from Seattle 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.