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$339+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SCL
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Find cheap flights from Seattle to Santiago with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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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 49 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap 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 December 18, 2025.

This American Airlines deal was found by Cheapflights users on 12/16. 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.
Sun 12/2811:59 pmSEA - SCL
1 stop26h 46mAmerican Airlines
Sat 1/1710:35 pmSCL - SEA
2 stops19h 39mAmerican Airlines
Deal found 12/16$1,059
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2811:59 pmSEA - SCL
2 stops27h 51mUnited Airlines
Sat 1/1710:45 pmSCL - SEA
3 stops27h 27mUnited Airlines
Deal found 12/16$1,236
This LATAM Airlines deal was found by Cheapflights users on 12/16. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:15 amSEA - SCL
1 stop18h 25mLATAM Airlines
Sat 1/179:30 pmSCL - SEA
1 stop17h 39mLATAM Airlines
Deal found 12/16$1,265
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/178:40 amSEA - SCL
2 stops19h 10mUnited Airlines
Mon 12/2910:45 pmSCL - SEA
2 stops29h 27mUnited Airlines
Deal found 12/16$1,379
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:05 pmSEA - SCL
2 stops34h 45mUnited Airlines
Sat 12/2710:45 pmSCL - SEA
2 stops29h 27mUnited Airlines
Deal found 12/16$1,629
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/171:40 pmSEA - SCL
2 stops22h 50mDelta
Mon 1/129:30 pmSCL - SEA
1 stop17h 39mDelta
Deal found 12/16$1,634
This Copa Airlines deal was found by Cheapflights users on 12/17. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:11 pmSEA - SCL
2 stops29h 16mCopa Airlines
Sun 1/113:34 amSCL - SEA
2 stops23h 24mCopa Airlines
Deal found 12/17$1,658
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:05 pmSEA - SCL
2 stops34h 45mUnited Airlines
Mon 1/1210:45 pmSCL - SEA
2 stops27h 30mUnited Airlines
Deal found 12/16$1,672

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$802
(Air Canada)

One-way from

$339
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,318
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 ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 18, 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

Mon 1/26

8:00 pm-6:50 am

2 stops29h 50m

Santiago Arturo Merino Benitez

Wed 2/11

8:55 pm-7:16 pm

2 stops27h 21m

$802

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Fri 1/30

1:55 pm-6:00 am

2 stops35h 05m

Santiago Arturo Merino Benitez

Wed 2/25

11:25 pm-10:04 pm

1 stop27h 39m

$816

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Wed 3/4

10:05 am-12:15 pm

2 stops21h 10m

Santiago Arturo Merino Benitez

Tue 3/17

7:55 pm-9:31 am

2 stops41h 36m

$855

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 3/2

8:00 pm-6:50 am

2 stops29h 50m

Santiago Arturo Merino Benitez

Tue 3/17

7:55 pm-10:16 pm

1 stop30h 21m

$872

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Fri 3/6

7:10 am-6:55 am

1 stop18h 45m

Santiago Arturo Merino Benitez

Mon 3/23

11:55 pm-2:41 pm

1 stop18h 46m

$936

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 3/2

7:10 am-6:55 am

1 stop18h 45m

Santiago Arturo Merino Benitez

Sun 3/15

10:30 pm-7:48 pm

1 stop25h 18m

$936

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Fri 5/8

7:20 am-5:25 am

2 stops19h 05m

Santiago Arturo Merino Benitez

Mon 5/18

10:55 pm-7:33 pm

1 stop23h 38m

$936

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 1/26

7:45 pm-8:20 pm

2 stops19h 35m

$359

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 3/10

3:29 pm-3:20 pm

2 stops43h 51m

$362

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 2/3

8:50 pm-7:40 am

2 stops29h 50m

$365

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 17 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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Santiago flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 12, 2025.

The best time to book flights from Seattle to Santiago is 49 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 $542). 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 December 18, 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 December 18, 2025.
See what other customers who have flown with Delta, LATAM Airlines, and United 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
8,009 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,009 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
LATAM Airlines
7.5
Good
1,893 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,095 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,054 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 $802, Air Canada can have you in Santiago from Seattle in 29h 50m. 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, American Airlines ($918), LATAM Airlines ($942), and United Airlines ($964) offers the cheapest pricing from Seattle to Santiago. You may be able to fly from Seattle to Santiago for 23% less than the average price by searching for these airlines.

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

    One-way options have recently been found by users for as low as $626 on LATAM Airlines. Other airlines that offer cheap prices include Delta from $658 and American Airlines from $667 one-way.

  • 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 $542). 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

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Top 4 airlines flying from Seattle to Santiago

Discover the top 4 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$918Average$1,267FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$947Average$1,282FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$964Average$1,128FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,014Average$1,335FlexibilityNo cancel feeOn-timeN/A

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