Find Cheap Flights from Seattle/Tacoma Intl to Sydney Kingsford Smith (SEA - SYD)

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Sat 11/18
Sat 11/25
Any month
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Good to Know

Low Season:
September
Best time to beat the crowds
3%
expected price decrease
High Season:
December
Most popular time to fly
11%
expected price increase
Average Price:
$4092
(avg. price over the last 2 weeks)
Good Deal:
$4092
or less (round trip)

When to Book Flights from Seattle/Tacoma Intl to Sydney Kingsford Smith

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

The cheapest flight from Seattle/Tacoma Intl to Sydney Kingsford Smith was found 84 days before departure, on average.
Book at least 6 weeks before departure in order to get a below-average price.
Morning departure is around 12% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Seattle/Tacoma Intl to Sydney Kingsford Smith Flights

How long does a flight from Seattle/Tacoma Intl to Sydney Kingsford Smith take?
An average nonstop flight takes 22h 45m, covering a distance of 7750 miles.
Which airlines provide the cheapest flights from Seattle/Tacoma Intl to Sydney Kingsford Smith?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($756), China Eastern ($767) and Air New Zealand ($1007).
Do I need a passport to fly between Seattle/Tacoma Intl and Sydney Kingsford Smith?
Yes.
What’s the cheapest day of the week to fly Seattle/Tacoma Intl to Sydney Kingsford Smith?
For Seattle/Tacoma Intl to Sydney Kingsford Smith, Tuesday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Sydney Kingsford Smith back to Seattle/Tacoma Intl, the best deals are generally found on Monday, with Tuesday being the most expensive.

Book cheap flights from Seattle/Tacoma Intl to Sydney Kingsford Smith (round-trip)

Airports
Origin
Seattle
$756
only
$756
Destination
Sydney
$756
only
$756
Tue, Mar 20
SEA
SYD
35h 00m
Mon, Apr 9
SYD
SEA
39h 49m
Trip: 21 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 16
SEA
SYD
47h 49m
Thu, May 31
SYD
SEA
38h 46m
Trip: 46 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
PVG
PEK
Okay 5.0

None

Food, dirty bathroom, smells badly and more

HKG
PVG
Good 6.3

The flight was delayed for almost an hour but I think the flight attendants did a good job on letting the flyers know what was going on.

PEK
SHA
Okay 4.0

They would not accomidate a flight change after I was delayed in an accident getting to the airport. One desk said there was a seat on the earlier flight and sent me out of the gate area to the front of the airport. When I got there a few minutes later they said no there is no seat. I was upset because I had to wait 6 hours now and go back through security again. I asked to speak to a supervisor. They pertended not to understand. I was persistant and then they siad oh here is a seat on the 1:00 flight. Then he goes do you want window or aisle. If there was no seats whey do I have a choice?

JFK
PVG
Okay 5.3

None

Food, seat, bathroom and smells badly, stinks,

LAX
PVG
Excellent 9.0

Lacked flavor... quantity was great

Sat, Feb 17
SEA
SYD
22h 45m
Fri, Feb 23
SYD
SEA
20h 58m
$1007
Trip: 7 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1476 reviews
Overall
8.7
Boarding
8.7
Comfort
8.4
Crew
9.0
Entertainment
8.6
Food
8.2
CHC
SYD
Excellent 10.0

We did not use the food or entertainment

LAX
AKL
Excellent 9.6

The crew were uniformly wonderful! They had a bunch of kids from the NZ equivalent of make-a-wish on board so they all dressed up. Anything we needed they provided with a smile.

The lay down seats are particularly hard and it is almost impossible to look out the window in business class

SYD
CHC
Excellent 8.0

The boarding and on-board service were excellent. Enough free-of-charge entertainment to keep me occupied during the 3-hour flight between SYD and CHC. Plenty of room for carry-on luggage.

Felt like I was flying a US carrier - very little room between the rows. I was surprised by this, as I thought that non-US carriers generally don’t pack their planes. I was surprised, but not inconvenienced by this, since it was a morning flight and only 3 hours gate-to-gate.

MEL
AKL
Good 6.0

the person next too me was overflowing in their seat so much they took up a quarter of my spot.. it was not work making the flight uncomfortable by making a stink about it but I paid for a whole seat not 3/4 of one!

NRT
AKL
Good 6.3

The staff asked for my return ticket to the U.S. I told them I have a round trip ticket from and to Japan. I have to show them my U. S. Navy identification card otherwise Air New Zealand would not have processed my boarding pass ticket. Air New Zealand discriminates.

Wed, Jan 10
SEA
SYD
46h 23m
Sun, Jan 28
SYD
SEA
38h 10m
Trip: 19 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
JFK
PVG
Okay 5.3

None

Food, seat, bathroom and smells badly, stinks,

TAO
ICN
Good 7.3

Crew seemed friendly.

Boarding was delayed 30 min. The attendant who spoke to me, spoke in clear English. The one giving the announcement, her pronunciation was not completely clear. For a routine speech like that, it should be well-rehearsed and clear.

HKG
PVG
Good 6.3

The flight was delayed for almost an hour but I think the flight attendants did a good job on letting the flyers know what was going on.

PVG
KIX
Okay 5.0

I missed my flight to Osaka, cause must claimed baggage, re-checked and immigration & security clearanced in at Pudong.

PEK
SHA
Okay 4.0

They would not accomidate a flight change after I was delayed in an accident getting to the airport. One desk said there was a seat on the earlier flight and sent me out of the gate area to the front of the airport. When I got there a few minutes later they said no there is no seat. I was upset because I had to wait 6 hours now and go back through security again. I asked to speak to a supervisor. They pertended not to understand. I was persistant and then they siad oh here is a seat on the 1:00 flight. Then he goes do you want window or aisle. If there was no seats whey do I have a choice?

Tue, Mar 20
SEA
SYD
48h 15m
Mon, Apr 9
SYD
SEA
38h 15m
Trip: 21 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
LAX
PVG
Okay 5.3

I liked the seats are roomy

I didn’t like the limited choices for food. In addition I felt those that spoke Chinese were taken care of better. I sat towards the end of the plane and they ran out constantly of food. The food they did serve wasn’t very good.

PEK
SHA
Okay 4.0

They would not accomidate a flight change after I was delayed in an accident getting to the airport. One desk said there was a seat on the earlier flight and sent me out of the gate area to the front of the airport. When I got there a few minutes later they said no there is no seat. I was upset because I had to wait 6 hours now and go back through security again. I asked to speak to a supervisor. They pertended not to understand. I was persistant and then they siad oh here is a seat on the 1:00 flight. Then he goes do you want window or aisle. If there was no seats whey do I have a choice?

PVG
SFO
Good 7.6

Everything about our flight went very well, and most were better than expected. The crew were very helpful. Our seats had plenty of room in economy. This were done very efficiently and with concern for value. The entertainment system was super.

Our Vegan meals were rather tasteless and uninteresting.

TAO
ICN
Good 7.3

Crew seemed friendly.

Boarding was delayed 30 min. The attendant who spoke to me, spoke in clear English. The one giving the announcement, her pronunciation was not completely clear. For a routine speech like that, it should be well-rehearsed and clear.

PVG
LAX
Excellent 10.0

Attendants tried to make a 10+ hour flight as comfortable as possible

N/A

Fri, May 4
SEA
SYD
48h 45m
Sat, May 19
SYD
SEA
44h 13m
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jan 13
SEA
SYD
46h 23m
Sun, Jan 21
SYD
SEA
29h 25m
Trip: 9 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
PVG
SZX
Excellent 9.0

Wondering if I can as a n the right flight out of PVG - luckily yes...

LAX
PVG
Okay 5.3

I liked the seats are roomy

I didn’t like the limited choices for food. In addition I felt those that spoke Chinese were taken care of better. I sat towards the end of the plane and they ran out constantly of food. The food they did serve wasn’t very good.

PVG
KIX
Okay 5.0

I missed my flight to Osaka, cause must claimed baggage, re-checked and immigration & security clearanced in at Pudong.

TAO
ICN
Good 7.3

Crew seemed friendly.

Boarding was delayed 30 min. The attendant who spoke to me, spoke in clear English. The one giving the announcement, her pronunciation was not completely clear. For a routine speech like that, it should be well-rehearsed and clear.

PEK
SHA
Okay 4.0

They would not accomidate a flight change after I was delayed in an accident getting to the airport. One desk said there was a seat on the earlier flight and sent me out of the gate area to the front of the airport. When I got there a few minutes later they said no there is no seat. I was upset because I had to wait 6 hours now and go back through security again. I asked to speak to a supervisor. They pertended not to understand. I was persistant and then they siad oh here is a seat on the 1:00 flight. Then he goes do you want window or aisle. If there was no seats whey do I have a choice?

Thu, Feb 1
SEA
SYD
24h 25m
Thu, Feb 8
SYD
SEA
22h 42m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Dec 3
SEA
SYD
48h 13m
Wed, Dec 13
SYD
SEA
37h 55m
Trip: 11 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
TAO
ICN
Good 7.3

Crew seemed friendly.

Boarding was delayed 30 min. The attendant who spoke to me, spoke in clear English. The one giving the announcement, her pronunciation was not completely clear. For a routine speech like that, it should be well-rehearsed and clear.

LAX
PVG
Okay 5.3

I liked the seats are roomy

I didn’t like the limited choices for food. In addition I felt those that spoke Chinese were taken care of better. I sat towards the end of the plane and they ran out constantly of food. The food they did serve wasn’t very good.

PVG
SFO
Good 7.6

Everything about our flight went very well, and most were better than expected. The crew were very helpful. Our seats had plenty of room in economy. This were done very efficiently and with concern for value. The entertainment system was super.

Our Vegan meals were rather tasteless and uninteresting.

PVG
KIX
Okay 5.0

I missed my flight to Osaka, cause must claimed baggage, re-checked and immigration & security clearanced in at Pudong.

JFK
PVG
Okay 5.3

None

Food, seat, bathroom and smells badly, stinks,

Sat, Feb 10
SEA
SYD
43h 55m
Sun, Feb 18
SYD
SEA
22h 51m
$1005
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Nov 27
SEA
SYD
46h 31m
Wed, Dec 6
SYD
SEA
37h 55m
Trip: 10 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
NGO
PVG
Good 6.3

Everything about our flight went very well, and most were better than expected. The crew were very helpful. Our seats had plenty of room in economy. This were done very efficiently and with concern for value.

Our Vegan meals were rather tasteless and uninteresting. The only entertainment was what we brought with us and overhead monitors.

PVG
SZX
Excellent 9.0

Wondering if I can as a n the right flight out of PVG - luckily yes...

PEK
SHA
Okay 4.0

They would not accomidate a flight change after I was delayed in an accident getting to the airport. One desk said there was a seat on the earlier flight and sent me out of the gate area to the front of the airport. When I got there a few minutes later they said no there is no seat. I was upset because I had to wait 6 hours now and go back through security again. I asked to speak to a supervisor. They pertended not to understand. I was persistant and then they siad oh here is a seat on the 1:00 flight. Then he goes do you want window or aisle. If there was no seats whey do I have a choice?

PVG
SFO
Good 7.6

Everything about our flight went very well, and most were better than expected. The crew were very helpful. Our seats had plenty of room in economy. This were done very efficiently and with concern for value. The entertainment system was super.

Our Vegan meals were rather tasteless and uninteresting.

TAO
ICN
Good 7.3

Crew seemed friendly.

Boarding was delayed 30 min. The attendant who spoke to me, spoke in clear English. The one giving the announcement, her pronunciation was not completely clear. For a routine speech like that, it should be well-rehearsed and clear.

Sun, Apr 1
SEA
SYD
46h 59m
Wed, Apr 18
SYD
SEA
38h 15m
Trip: 18 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
LAX
PVG
Okay 5.3

I liked the seats are roomy

I didn’t like the limited choices for food. In addition I felt those that spoke Chinese were taken care of better. I sat towards the end of the plane and they ran out constantly of food. The food they did serve wasn’t very good.

HKG
PVG
Good 6.3

The flight was delayed for almost an hour but I think the flight attendants did a good job on letting the flyers know what was going on.

NGO
PVG
Good 6.3

Everything about our flight went very well, and most were better than expected. The crew were very helpful. Our seats had plenty of room in economy. This were done very efficiently and with concern for value.

Our Vegan meals were rather tasteless and uninteresting. The only entertainment was what we brought with us and overhead monitors.

PVG
LAX
Excellent 10.0

Attendants tried to make a 10+ hour flight as comfortable as possible

N/A

PVG
SZX
Excellent 9.0

Wondering if I can as a n the right flight out of PVG - luckily yes...

Fri, Dec 8
SEA
SYD
46h 58m
Sun, Dec 24
SYD
SEA
37h 55m
$1011
Trip: 17 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3881 reviews
Overall
6.3
Boarding
6.4
Comfort
6.4
Crew
6.7
Entertainment
6.1
Food
5.8
JFK
PVG
Okay 5.3

None

Food, seat, bathroom and smells badly, stinks,

PVG
KIX
Okay 5.0

I missed my flight to Osaka, cause must claimed baggage, re-checked and immigration & security clearanced in at Pudong.

PVG
LAX
Excellent 10.0

Attendants tried to make a 10+ hour flight as comfortable as possible

N/A

LAX
PVG
Excellent 9.0

Lacked flavor... quantity was great

PEK
SHA
Okay 4.0

They would not accomidate a flight change after I was delayed in an accident getting to the airport. One desk said there was a seat on the earlier flight and sent me out of the gate area to the front of the airport. When I got there a few minutes later they said no there is no seat. I was upset because I had to wait 6 hours now and go back through security again. I asked to speak to a supervisor. They pertended not to understand. I was persistant and then they siad oh here is a seat on the 1:00 flight. Then he goes do you want window or aisle. If there was no seats whey do I have a choice?

Tue, Nov 21
SEA
SYD
31h 50m
Sat, Dec 2
SYD
SEA
39h 10m
$1387
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Dec 26
SEA
SYD
44h 05m
Tue, Jan 2
SYD
SEA
64h 10m
$1594
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.