HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Santiago

$278+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SCL
Mar 17 — Mar 241
Tue 3/17
Tue 3/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 February 15, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/13. 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 4/88:09 am
SEA
-
SCL
2 stops36h 11m
Multiple Airlines
Tue 4/2111:00 pm
SCL
-
SEA
1 stop25h 47m
Multiple Airlines
Deal found 2/13$723
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/168:08 am
SEA
-
SCL
3 stops47h 52m
Multiple Airlines
Wed 4/1511:00 pm
SCL
-
SEA
1 stop26h 03m
Multiple Airlines
Deal found 2/12$726
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 4/88:09 am
SEA
-
SCL
2 stops27h 06m
Multiple Airlines
Mon 4/2011:00 pm
SCL
-
SEA
1 stop26h 03m
Multiple Airlines
Deal found 2/13$763
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 4/88:09 am
SEA
-
SCL
2 stops27h 06m
Multiple Airlines
Wed 4/2210:30 am
SCL
-
SEA
1 stop38h 17m
Multiple Airlines
Deal found 2/13$767
This Kiwi.com deal was found by Cheapflights users on 2/12. 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 3/168:08 am
SEA
-
SCL
2 stops42h 32m
Multiple Airlines
Tue 4/1411:00 pm
SCL
-
SEA
1 stop26h 03m
Multiple Airlines
Deal found 2/12$786
This FlightHub deal was found by Cheapflights users on 2/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:15 am
SEA
-
SCL
1 stop18h 20m
LATAM Airlines
Tue 4/2811:25 pm
SCL
-
SEA
1 stop16h 12m
LATAM Airlines
Deal found 2/11$800
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 4/98:09 am
SEA
-
SCL
2 stops27h 06m
Multiple Airlines
Tue 4/2111:00 pm
SCL
-
SEA
1 stop25h 47m
Multiple Airlines
Deal found 2/13$809
This Kiwi.com deal was found by Cheapflights users on 2/14. 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 3/3012:35 am
SEA
-
SCL
2 stops25h 28m
Multiple Airlines
Tue 4/710:30 am
SCL
-
SEA
1 stop38h 30m
Multiple Airlines
Deal found 2/14$817
This FlightHub deal was found by Cheapflights users on 2/13. 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.
Mon 4/137:15 am
SEA
-
SCL
1 stop20h 40m
LATAM Airlines
Mon 4/2710:55 pm
SCL
-
SEA
1 stop18h 47m
LATAM Airlines
Deal found 2/13$818
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/107:05 am
SEA
-
SCL
1 stop18h 50m
Multiple Airlines
Tue 3/1711:55 pm
SCL
-
SEA
1 stop21h 14m
Multiple Airlines
Deal found 2/11$822
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 3/258:05 am
SEA
-
SCL
2 stops50h 35m
Multiple Airlines
Wed 4/111:00 pm
SCL
-
SEA
1 stop27h 00m
Multiple Airlines
Deal found 2/13$823

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 February 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$723
(Kiwi.com)

One-way from

$278
(Kiwi.com)

Popular in

May

Cheapest in

January

Average price

$1,137
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. 10% potential increase in price ($135 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 February 2026
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 February 15, 2026.
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

Wed 4/1

7:15 am-5:35 am

1 stop18h 20m

Santiago Arturo Merino Benitez

Tue 4/28

11:25 pm-12:37 pm

1 stop16h 12m

$800

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 3/30

12:35 am-6:03 am

2 stops25h 28m

Santiago Arturo Merino Benitez

Tue 4/7

10:30 am-10:00 pm

1 stop38h 30m

$817

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Wed 4/8

6:15 am-4:50 am

2 stops19h 35m

Santiago Arturo Merino Benitez

Wed 4/22

7:45 pm-3:26 pm

2 stops22h 41m

$855

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 4/6

6:15 am-6:00 am

2 stops20h 45m

Santiago Arturo Merino Benitez

Wed 4/22

7:45 pm-2:51 pm

2 stops22h 06m

$855

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sun 4/5

11:30 pm-6:00 am

2 stops27h 30m

Santiago Arturo Merino Benitez

Tue 4/21

8:40 pm-12:14 pm

1 stop18h 34m

$855

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Thu 4/9

7:15 am-5:35 am

1 stop19h 20m

Santiago Arturo Merino Benitez

Sun 4/19

7:45 pm-2:42 pm

2 stops21h 57m

$855

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Thu 4/9

11:45 am-1:45 pm

2 stops23h 00m

Santiago Arturo Merino Benitez

Tue 4/21

4:10 am-9:05 pm

2 stops19h 55m

$855

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Thu 4/16

4:20 pm-9:05 pm

3 stops25h 45m

$278

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 3/30

12:35 am-6:03 am

2 stops25h 28m

$391

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 3/9

3:40 pm-11:15 am

2 stops39h 35m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 14 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 February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 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 February 13, 2026.

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, January is the cheapest month in which you can book a flight from Seattle to Santiago (average of $466). Flying from Seattle to Santiago in May is currently the most expensive (average of $1,050). 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.

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 February 15, 2026.
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
8,205 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

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
8,205 reviews
Delta
7.9
Good
8,205 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

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
1,919 reviews
Delta
7.9
Good
8,205 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

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
9,296 reviews
Delta
7.9
Good
8,205 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

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
11,297 reviews
Delta
7.9
Good
8,205 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

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 $800, LATAM Airlines can have you in Santiago from Seattle in 18h 20m. 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, LATAM Airlines ($888), Delta ($895), and American Airlines ($918) 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 $523 on LATAM Airlines. Other airlines that offer cheap prices include Delta from $551 and American Airlines from $694 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, January is the cheapest month in which you can book a flight from Seattle to Santiago (average of $466). Flying from Seattle to Santiago in May is currently the most expensive (average of $1,050). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 February 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$888Average$1,233FlexibilityNo cancel feeOn-time81%
DeltaCheapest$895Average$1,285FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$918Average$1,235FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$1,018Average$1,128FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights