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$324+ Cheap flights from Seattle (SEA) to Santiago (SCL)

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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SCL
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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Find cheap flights from Seattle to Santiago with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Santiago Arturo Merino Benitez are usually found in November or July, booked 77 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Find flight deals from Seattle to Santiago

Cheapest flights from Seattle to Santiago
Explore the most affordable flight options available from Seattle to Santiago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This Air Canada deal was found by Cheapflights users on 10/22. 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.
Fri 11/148:00 pmSEA - SCL
2 stops59h 15mAir Canada
Mon 11/248:55 pmSCL - SEA
2 stops54h 11mAir Canada
Deal found 10/22$813
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/49:39 pmSEA - SCL
2 stops27h 31mMultiple Airlines
Thu 12/1111:25 pmSCL - SEA
1 stop28h 05mMultiple Airlines
Deal found 10/21$817
This Air Canada deal was found by Cheapflights users on 10/22. 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.
Fri 11/148:00 pmSEA - SCL
2 stops59h 15mAir Canada
Wed 11/268:55 pmSCL - SEA
1 stop30h 21mAir Canada
Deal found 10/22$836
This Trip.com deal was found by Cheapflights users on 10/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/149:08 amSEA - SCL
1 stop16h 22mMultiple Airlines
Mon 11/2411:55 pmSCL - SEA
1 stop19h 42mMultiple Airlines
Deal found 10/23$842
This Air Canada deal was found by Cheapflights users on 10/22. 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.
Sun 11/98:00 pmSEA - SCL
2 stops35h 15mAir Canada
Tue 11/258:55 pmSCL - SEA
1 stop30h 21mAir Canada
Deal found 10/22$853
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/128:05 amSEA - SCL
1 stop17h 25mMultiple Airlines
Mon 11/245:50 amSCL - SEA
2 stops34h 25mMultiple Airlines
Deal found 10/22$863
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/128:05 amSEA - SCL
1 stop17h 25mMultiple Airlines
Thu 11/2712:20 pmSCL - SEA
2 stops31h 17mMultiple Airlines
Deal found 10/22$865
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:08 amSEA - SCL
2 stops30h 13mMultiple Airlines
Thu 11/2711:35 pmSCL - SEA
1 stop20h 02mMultiple Airlines
Deal found 10/22$868
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:08 amSEA - SCL
2 stops30h 13mMultiple Airlines
Thu 11/2711:35 pmSCL - SEA
1 stop20h 02mMultiple Airlines
Deal found 10/22$873
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:37 pmSEA - SCL
2 stops35h 53mMultiple Airlines
Thu 11/2711:35 pmSCL - SEA
1 stop20h 02mMultiple Airlines
Deal found 10/22$876
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:57 pmSEA - SCL
1 stop29h 33mMultiple Airlines
Tue 11/254:25 pmSCL - SEA
2 stops23h 50mMultiple Airlines
Deal found 10/22$884

Cheap flight deals from Seattle to Santiago

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Santiago (SCL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$804
(Air Canada)

One-way from

$324
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,133
Provider with most accurate pricing for Seattle/Tacoma Intl-Santiago Arturo Merino Benitez flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Santiago Arturo Merino Benitez flights.
Search Deals
From Seattle/Tacoma Intl to Santiago Arturo Merino Benitez
Search Deals
One-way flight from Seattle/Tacoma Intl to Santiago Arturo Merino Benitez
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($84 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Santiago 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 October 23, 2025.
Use the filters below to find and compare flights from Seattle to Santiago that are best for you.

Fly from

Seattle

Fly to

Santiago

Route

Depart

Return

Price

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sat 2/7

8:00 pm-12:15 pm

2 stops35h 15m

Santiago Arturo Merino Benitez

Tue 2/17

8:55 pm-7:16 pm

2 stops27h 21m

$804

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sat 1/10

8:00 pm-12:15 pm

2 stops35h 15m

Santiago Arturo Merino Benitez

Sat 2/7

8:55 pm-10:16 pm

1 stop30h 21m

$824

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Wed 3/11

5:50 am-11:15 am

2 stops25h 25m

Santiago Arturo Merino Benitez

Mon 3/23

7:55 pm-10:16 pm

1 stop30h 21m

$824

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Fri 11/14

8:00 pm-12:15 pm

2 stops59h 15m

Santiago Arturo Merino Benitez

Mon 11/24

8:55 pm-9:31 am

2 stops41h 36m

$826

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 3/16

8:10 am-11:15 am

1 stop23h 05m

Santiago Arturo Merino Benitez

Mon 3/23

7:55 pm-3:01 pm

2 stops23h 06m

$836

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 1/13

8:10 am-12:15 pm

1 stop23h 05m

Santiago Arturo Merino Benitez

Tue 1/27

8:55 pm-10:16 pm

1 stop30h 21m

$839

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Thu 11/13

12:58 am-5:30 am

2 stops23h 32m

Santiago Arturo Merino Benitez

Mon 11/24

11:55 pm-2:37 pm

1 stop19h 42m

$916

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sat 12/6

8:00 pm-6:55 am

3 stops29h 55m

Santiago Arturo Merino Benitez

Sat 3/7

8:50 pm-6:16 pm

3 stops26h 26m

$947

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Fri 1/23

3:40 pm-7:00 am

3 stops34h 20m

Santiago Arturo Merino Benitez

Tue 3/24

7:55 pm-2:19 pm

2 stops22h 24m

$968

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sat 11/15

9:08 am-8:21 pm

2 stops30h 13m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 19 results
1
2

Compare providers for flights from Seattle to Santiago

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Santiago in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Santiago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Santiago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Santiago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Santiago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Santiago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Santiago

Have a flexible travel schedule? Discover the best time to fly to Santiago 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 Santiago

How far ahead should I book a flight from Seattle to Santiago?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Santiago. Price data was last updated on October 17, 2025.

The best time to book flights from Seattle to Santiago is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, July is the cheapest month in which you can book a flight from Seattle to Santiago (average of $621). Flying from Seattle to Santiago in June is currently the most expensive (average of $1,245). 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 SCL?

Find hourly flight availability from Seattle to Santiago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 23, 2025.

It’s typically best to fly out from Seattle to Santiago in the afternoon. Doing so could potentially save you 22% on the flight price compared to flying in the evening, which is usually more expensive.

Reviews of airlines servicing Santiago

Get insights into the airlines that provide service to Santiago. 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 Santiago. Reviews last updated October 23, 2025.
See what other customers who have flown with Delta, Copa Airlines, and LATAM Airlines from Seattle to Santiago have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,982 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,982 reviews
Delta
7.9
Good
7,982 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Copa Airlines
7.6
Good
1,560 reviews
Delta
7.9
Good
7,982 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
LATAM Airlines
7.5
Good
1,871 reviews
Delta
7.9
Good
7,982 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,995 reviews
Delta
7.9
Good
7,982 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,033 reviews
Delta
7.9
Good
7,982 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

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

  • How long is the flight from Seattle to Santiago?

    For as low as $804, Air Canada can have you in Santiago from Seattle in 35h 15m. The distance from Seattle to Santiago is about 6428 mi.

  • What are the cheapest airlines flying from Seattle to Santiago round-trip?

    According to our current data, Copa Airlines ($795), American Airlines ($882), and LATAM Airlines ($997) offers the cheapest pricing from Seattle to Santiago. You may be able to fly from Seattle to Santiago for 34% less than the average price by searching for these airlines.

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

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

  • How can I find direct flights from Seattle to Santiago?

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

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

    Yes. Cheapflights offers flight deals from Seattle to Santiago 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 Santiago?

    Currently, July is the cheapest month in which you can book a flight from Seattle to Santiago (average of $621). Flying from Seattle to Santiago in June is currently the most expensive (average of $1,245). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Seattle to Santiago

Discover the top 5 airlines that operate flights from Seattle to Santiago. 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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$795Average$973FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$882Average$1,244FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$997Average$1,287FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$1,018Average$1,128FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,033Average$1,339FlexibilityNo cancel feeOn-timeN/A

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