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$372+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SCL
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Santiago Arturo Merino Benitez are usually found in November or February, booked 76 days in advance, depart on a Tuesday or Monday and return on a Wednesday

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 July 1, 2025.

Round-trip from

$796
(Kiwi.com)

One-way from

$372
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,132
From Seattle/Tacoma Intl to Santiago Arturo Merino Benitez
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One-way flight from Seattle/Tacoma Intl to Santiago Arturo Merino Benitez
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Highest demand for flights based on searches. 7% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/30. 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 9/238:25 amSEA - SCL
2 stops33h 50mMultiple Airlines
Tue 10/711:00 amSCL - SEA
1 stop39h 30mMultiple Airlines
Deal found 6/30$796
This Copa Airlines deal was found by Cheapflights users on 7/1. 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.
Thu 8/215:35 pmSEA - SCL
2 stops30h 11mCopa Airlines
Tue 9/212:13 amSCL - SEA
2 stops25h 02mCopa Airlines
Deal found 7/1$948
This Aeromexico deal was found by Cheapflights users on 7/1. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/279:30 amSEA - SCL
1 stop31h 45mAeromexico
Mon 11/1711:25 pmSCL - SEA
1 stop25h 35mAeromexico
Deal found 7/1$975

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 July 1, 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

Tue 9/23

8:25 am-10:15 pm

2 stops33h 50m

Santiago Arturo Merino Benitez

Tue 10/7

11:00 am-10:30 pm

1 stop39h 30m

$796

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Thu 8/21

5:35 pm-2:46 am

2 stops30h 11m

Santiago Arturo Merino Benitez

Tue 9/2

12:13 am-10:15 pm

2 stops25h 02m

$948

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 10/27

9:30 am-9:15 pm

1 stop31h 45m

Santiago Arturo Merino Benitez

Mon 11/17

11:25 pm-8:00 pm

1 stop25h 35m

$975

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 9/15

7:05 am-2:25 pm

3 stops27h 20m

$372

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Thu 9/18

6:25 am-5:58 am

2 stops19h 33m

$469

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 8/12

7:18 am-6:45 am

1 stop20h 27m

$596

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sun 11/30

1:33 am-7:50 am

1 stop25h 17m

$658

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sun 9/21

2:25 pm-6:00 am

1 stop35h 35m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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 June 27, 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, April is the cheapest month in which you can book a flight from Seattle to Santiago (average of $752). Flying from Seattle to Santiago in December is currently the most expensive (average of $1,098). 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 July 1, 2025.

It’s typically best to fly out from Seattle to Santiago in the afternoon. Doing so could potentially save you 23% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Seattle to Santiago?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Santiago. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Santiago flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 July 1, 2025.
See what other customers who have flown with Delta, LATAM Airlines, and Copa 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
8.0
Very good
7,974 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,974 reviews
Delta
8.0
Very good
7,974 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LATAM Airlines
7.5
Good
1,805 reviews
Delta
8.0
Very good
7,974 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Copa Airlines
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,974 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What is the cheapest airline to fly from Seattle to Santiago round-trip?

    According to our current data, Copa Airlines ($948), offers the cheapest pricing from Seattle to Santiago. You may be able to fly from Seattle to Santiago for 22% less than the average price by searching for this airline.

  • 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 $469 on Copa Airlines. Other airlines that offer cheap prices include LATAM Airlines from $596 and Delta from $662 one-way.

  • Where are the most common layover locations when flying from Seattle to Santiago?

    Most of the time, Seattle to Santiago flights that have layovers will stop in Dallas.

  • What are some popular things to do or see while on a layover in Dallas?

    Most Dallas visitors opt to spend their time experiencing American Airlines Center, Dallas World Aquarium, and Reunion Tower. American Airlines Center, Dallas World Aquarium, and Reunion Tower can be visited by traveling about 15.0 mi, 15.5 mi, and 15.6 mi respectively from Dallas/Fort Worth. Those on a layover in Dallas in need of a rental car can book one at Dallas/Fort Worth for about $53.

  • Where are the least popular layover locations for Seattle to Santiago flights?

    Seattle to Santiago flights that have layovers will least frequently stop in Los Angeles.

  • 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, April is the cheapest month in which you can book a flight from Seattle to Santiago (average of $752). Flying from Seattle to Santiago in December is currently the most expensive (average of $1,098). 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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$805Average$933FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$902Average$1,164FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$912Average$1,084FlexibilityNo cancel feeOn-time70%
LATAM AirlinesCheapest$1,032Average$1,303FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,032Average$1,353FlexibilityNo cancel feeOn-timeN/A

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