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South Pacific

$366+ Cheap flights from Seattle (SEA) to South Pacific

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SYD
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from Seattle to South Pacific

Keep the following information in mind while searching for Seattle to South Pacific flight deals. Data was last updated septiembre 11, 2025.

Round-trip from

$742
(Air Canada)

One-way from

$366
(Air Canada)

Popular in

December

Cheapest in

February

Average price

$1,051

Good round-trip deal

$758 or less

Good one-way deal

$634 or less
From Seattle/Tacoma Intl to South Pacific
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One-way flight from Seattle/Tacoma Intl to South Pacific
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Highest demand for flights based on searches. 11% potential increase in price ($148 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to South Pacific.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to South Pacific.
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Find flight deals from Seattle to South Pacific

Cheapest flights from Seattle to South Pacific
Explore the most affordable flight options available from Seattle to South Pacific. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/143:40 pmSEA - AKL
1 stop22h 20mAir Canada
dom. 12/212:00 pmAKL - SEA
1 stop21h 31mAir Canada
Deal found 9/9$742
This Expedia deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/318:00 pmSEA - AKL
2 stops32h 25mMultiple Airlines
lun. 11/176:45 amAKL - SEA
2 stops23h 46mMultiple Airlines
Deal found 9/9$746
This Orbitz deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/810:05 amSEA - AKL
1 stop27h 55mAir Canada
dom. 12/212:00 pmAKL - SEA
1 stop16h 31mAir Canada
Deal found 9/10$768
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/28:00 pmSEA - AKL
2 stops24h 20mAir Canada
dom. 11/166:15 amAKL - SEA
2 stops34h 01mAir Canada
Deal found 9/10$772
This Air Canada deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/318:00 pmSEA - AKL
2 stops25h 55mMultiple Airlines
vie. 11/146:15 amAKL - SEA
2 stops24h 16mMultiple Airlines
Deal found 9/11$812
This Air Canada deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/192:55 pmSEA - SYD
2 stops26h 45mAir Canada
dom. 10/267:00 amSYD - SEA
2 stops20h 31mAir Canada
Deal found 9/11$814
This Air Canada deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/257:15 pmSEA - MEL
2 stops25h 00mAir Canada
sáb. 11/88:10 amMEL - SEA
2 stops25h 21mAir Canada
Deal found 9/11$815
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/203:23 pmSEA - SYD
1 stop23h 07mAmerican Airlines
mié. 10/19:10 amSYD - SEA
1 stop22h 39mAmerican Airlines
Deal found 9/9$815
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/213:23 pmSEA - SYD
1 stop23h 07mAmerican Airlines
dom. 10/56:45 pmSYD - SEA
1 stop21h 13mAmerican Airlines
Deal found 9/10$816
This Flighttix deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/257:44 amSEA - SYD
1 stop18h 01mHawaiian Airlines
mar. 10/289:40 pmSYD - SEA
1 stop19h 52mHawaiian Airlines
Deal found 9/9$819
This Orbitz deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/88:00 pmSEA - SYD
2 stops23h 40mAir Canada
sáb. 11/153:00 pmSYD - SEA
2 stops37h 31mAir Canada
Deal found 9/11$820
This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/135:50 amSEA - SYD
2 stops41h 15mAir Canada
jue. 12/2511:20 amSYD - SEA
1 stop17h 11mAir Canada
Deal found 9/9$825

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to South Pacific that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from Seattle to South Pacific that are best for you.

Fly from

Seattle

Fly to

South Pacific

Route

Depart

Return

Price

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

dom. 11/9

4:30 pm-7:25 am

1 stop19h 55m

Sydney Kingsford Smith

vie. 11/28

5:45 pm-6:11 pm

1 stop19h 26m

$827

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

mié. 11/12

7:00 am-7:45 pm

1 stop17h 45m

Sydney Kingsford Smith

vie. 11/21

9:40 pm-11:17 pm

1 stop20h 37m

$827

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

dom. 11/9

4:30 pm-7:25 am

1 stop19h 55m

Sydney Kingsford Smith

dom. 11/23

5:45 pm-6:11 pm

1 stop19h 26m

$827

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

jue. 11/6

7:00 am-7:45 pm

1 stop17h 45m

Sydney Kingsford Smith

vie. 11/21

9:40 pm-8:49 pm

1 stop18h 09m

$828

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

vie. 11/7

7:00 am-7:45 pm

1 stop17h 45m

Sydney Kingsford Smith

jue. 11/20

9:40 pm-5:35 am

1 stop26h 55m

$828

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

mar. 9/30

5:26 pm-7:00 am

1 stop20h 34m

Sydney Kingsford Smith

mié. 10/15

10:30 am-9:15 pm

2 stops28h 45m

$843

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

dom. 9/21

5:40 pm-6:35 am

1 stop19h 55m

Sydney Kingsford Smith

mar. 9/30

9:25 am-12:45 pm

1 stop20h 20m

$844

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

jue. 11/6

7:28 pm-9:15 am

1 stop18h 47m

Sydney Kingsford Smith

mié. 11/19

11:50 am-6:10 pm

2 stops25h 20m

$844

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

dom. 9/21

5:35 pm-6:55 am

1 stop20h 20m

Sydney Kingsford Smith

jue. 10/2

9:30 am-9:15 pm

2 stops28h 45m

$844

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

sáb. 12/13

5:05 am-9:05 am

2 stops33h 00m

Sydney Kingsford Smith

vie. 12/26

12:10 pm-5:00 pm

1 stop23h 50m

$848

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 results
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Best time to book a flight from Seattle to South Pacific

Have a flexible travel schedule? Discover the best time to fly to South Pacific from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to South Pacific

What is the cheapest month to book a flight from Seattle to South Pacific?

Currently, February is the cheapest month in which you can book a flight from Seattle to South Pacific (average of $1,035). Flying from Seattle to South Pacific in December is currently the most expensive (average of $1,626). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to SP?

Find hourly flight availability from Seattle to South Pacific. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to South Pacific as you normally would.

Reviews of airlines servicing South Pacific

Get insights into the airlines that provide service to South Pacific. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Pacific. Reviews last updated septiembre 11, 2025.
See what other customers who have flown with Alaska Airlines, Air New Zealand, and Delta from Seattle to South Pacific have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Air New Zealand
8.0
Very good
505 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Air Canada
7.1
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Seattle to South Pacific. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to South Pacific?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to South Pacific.

  • How long is the flight from Seattle to South Pacific?

    For as low as $827, Alaska Airlines can have you in South Pacific from Seattle in 17h 45m. The distance between Seattle and South Pacific is about 7744 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Seattle to South Pacific one-way?

    The cheapest airlines for a one-way flight from Seattle to South Pacific are Air Canada ($366), Qantas Airways ($380), and United Airlines ($495).

  • What are the most popular routes from Seattle to South Pacific?

    While some choose either Seattle/Tacoma Intl - Auckland Intl or Seattle/Tacoma Intl - Melbourne, Seattle/Tacoma Intl - Sydney Kingsford Smith is the most popular route from Seattle to South Pacific.

  • Can I find deals for flights from Seattle to South Pacific that include hotel bookings?

    Yes. In addition to deals on Seattle to South Pacific flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to South Pacific?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to South Pacific.

  • Can I find deals for business class flights from Seattle to South Pacific?

    Yes. Cheapflights offers flight deals from Seattle to South Pacific by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to South Pacific?

    Currently, February is the cheapest month in which you can book a flight from Seattle to South Pacific (average of $1,035). Flying from Seattle to South Pacific in December is currently the most expensive (average of $1,626). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Seattle to South Pacific

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Seattle to South Pacific

Discover the top 10 airlines that operate flights from Seattle to South Pacific. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$591Average$1,166FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$620Average$1,120FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$647Average$1,202FlexibilityNo cancel feeOn-time74%
Air Tahiti NuiCheapest$718Average$908FlexibilityNo cancel feeOn-time73%
American AirlinesCheapest$769Average$1,086FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$776Average$1,290FlexibilityNo cancel feeOn-time69%
DeltaCheapest$787Average$1,101FlexibilityNo cancel feeOn-timeN/A
ANACheapest$794Average$1,083FlexibilityNo cancel feeOn-time80%
Hawaiian AirlinesCheapest$826Average$1,199FlexibilityNo cancel feeOn-time85%
Fiji AirwaysCheapest$845Average$1,181FlexibilityNo cancel feeOn-time74%

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