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$306+ 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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SCL
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
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 49 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Seattle to Santiago

Best flights from Seattle to Santiago
Discover carefully curated flight deals from Seattle to Santiago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/25. 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 1/198:44 amSEA - SCL
2 stops40h 56mMultiple Airlines
Mon 3/911:25 pmSCL - SEA
1 stop26h 39mMultiple Airlines
Deal found 12/25$789
This FlightHub deal was found by Cheapflights users on 12/25. 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.
Fri 3/67:10 amSEA - SCL
1 stop18h 45mLATAM Airlines
Mon 3/2311:55 pmSCL - SEA
1 stop16h 54mLATAM Airlines
Deal found 12/25$936
This Delta deal was found by Cheapflights users on 12/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2210:58 pmSEA - SCL
1 stop26h 57mDelta
Tue 3/318:40 pmSCL - SEA
1 stop17h 21mDelta
Deal found 12/23$964
This Kiwi.com deal was found by Cheapflights users on 12/25. 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 2/28:55 amSEA - SCL
2 stops44h 39mMultiple Airlines
Mon 2/2311:25 pmSCL - SEA
1 stop27h 39mMultiple Airlines
Deal found 12/25$875
This FlightHub deal was found by Cheapflights users on 12/25. 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.
Tue 3/247:15 amSEA - SCL
1 stop18h 20mLATAM Airlines
Tue 3/318:40 pmSCL - SEA
1 stop17h 21mLATAM Airlines
Deal found 12/25$943
This Delta deal was found by Cheapflights users on 12/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/239:40 amSEA - SCL
1 stop15h 55mDelta
Tue 3/318:40 pmSCL - SEA
1 stop17h 21mDelta
Deal found 12/23$964
This Kiwi.com deal was found by Cheapflights users on 12/25. 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 2/38:55 amSEA - SCL
2 stops44h 39mMultiple Airlines
Mon 2/2311:25 pmSCL - SEA
1 stop27h 39mMultiple Airlines
Deal found 12/25$884
This FlightHub deal was found by Cheapflights users on 12/25. 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.
Tue 2/37:15 amSEA - SCL
1 stop17h 20mLATAM Airlines
Mon 2/2311:55 pmSCL - SEA
1 stop19h 49mLATAM Airlines
Deal found 12/25$956
This Kiwi.com deal was found by Cheapflights users on 12/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/259:08 amSEA - SCL
1 stop16h 27mMultiple Airlines
Tue 3/313:30 pmSCL - SEA
2 stops34h 30mMultiple Airlines
Deal found 12/23$943
This FlightHub deal was found by Cheapflights users on 12/24. 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.
Thu 1/297:10 amSEA - SCL
1 stop18h 45mLATAM Airlines
Sat 2/78:50 pmSCL - SEA
2 stops21h 07mLATAM Airlines
Deal found 12/24$960
This KAYAK deal was found by Cheapflights users on 12/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/182:00 pmSEA - SCL
2 stops22h 30mLATAM Airlines
Tue 2/2412:10 amSCL - SEA
2 stops27h 05mLATAM Airlines
Deal found 12/25$964

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 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$773
(Kiwi.com)

One-way from

$306
(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 ($86 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($20 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 26, 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 1/19

8:44 am-6:40 am

2 stops40h 56m

Santiago Arturo Merino Benitez

Mon 3/9

11:25 pm-10:04 pm

1 stop26h 39m

$789

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 2/2

8:55 am-10:34 am

2 stops44h 39m

Santiago Arturo Merino Benitez

Mon 2/23

11:25 pm-10:04 pm

1 stop27h 39m

$875

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 2/3

8:55 am-10:34 am

2 stops44h 39m

Santiago Arturo Merino Benitez

Mon 2/23

11:25 pm-10:04 pm

1 stop27h 39m

$884

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-12:49 pm

1 stop16h 54m

$936

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 3/24

7:15 am-5:35 am

1 stop18h 20m

Santiago Arturo Merino Benitez

Tue 3/31

8:40 pm-10:01 am

1 stop17h 21m

$943

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Wed 3/25

9:08 am-5:35 am

1 stop16h 27m

Santiago Arturo Merino Benitez

Tue 3/31

3:30 pm-10:00 pm

2 stops34h 30m

$943

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 2/3

7:15 am-5:35 am

1 stop17h 20m

Santiago Arturo Merino Benitez

Mon 2/23

11:55 pm-2:44 pm

1 stop19h 49m

$956

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Thu 1/29

7:10 am-6:55 am

1 stop18h 45m

Santiago Arturo Merino Benitez

Sat 2/7

8:50 pm-12:57 pm

2 stops21h 07m

$960

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sun 3/22

10:58 pm-5:55 am

1 stop26h 57m

Santiago Arturo Merino Benitez

Tue 3/31

8:40 pm-10:01 am

1 stop17h 21m

$964

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 3/23

9:40 am-5:35 am

1 stop15h 55m

Santiago Arturo Merino Benitez

Tue 3/31

8:40 pm-10:01 am

1 stop17h 21m

$964

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

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 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 19, 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 26, 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 26, 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
8,016 reviews

Boarding

8.1

Comfort

7.9

Food

7.3

Entertainment

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
8,016 reviews
Delta
7.9
Good
8,016 reviews

Boarding

8.1

Comfort

7.9

Food

7.3

Entertainment

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
1,894 reviews
Delta
7.9
Good
8,016 reviews

Boarding

8.1

Comfort

7.9

Food

7.3

Entertainment

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
9,116 reviews
Delta
7.9
Good
8,016 reviews

Boarding

8.1

Comfort

7.9

Food

7.3

Entertainment

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
11,065 reviews
Delta
7.9
Good
8,016 reviews

Boarding

8.1

Comfort

7.9

Food

7.3

Entertainment

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 $936, LATAM Airlines can have you in Santiago from Seattle in 18h 45m. 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 Delta ($1,014) 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 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$918Average$1,281FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$946Average$1,262FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,014Average$1,339FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,018Average$1,128FlexibilityNo cancel feeOn-time69%

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