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

According to our current data, Air Canada ($805), American Airlines ($902), and Copa Airlines ($918) offers the cheapest pricing from Seattle to Santiago. You may be able to fly from Seattle to Santiago for 33% less than the average price by searching for these airlines.

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

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.

In terms of precipitation, rainfall in Santiago ranges from 0.0 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Santiago when rainfall is around 0.0 in.

If weather is an important factor for your trip to Santiago, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 46.4 F).

What are the most popular airlines that fly from Seattle to Santiago?

Before booking your flight from Seattle to Santiago check out the most popular airlines for this route: American Airlines, Air Canada or Copa Airlines.

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.

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.

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 Dos Equis Pavilion. American Airlines Center, Dallas World Aquarium, and Dos Equis Pavilion can be visited by traveling about 15.0 mi, 15.5 mi, and 18.3 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 $52.

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

Departing on a Monday is a good option for securing a great price. You can expect to save up to 26% when planning your travel around this day of the week.

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

To save on the cost of your flight from Seattle to Santiago, book at least 48 days before your planned departure. Booking around this time can save you about 53% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $961 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,204.

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

November is one of the best times of the year to fly to Santiago from Seattle. Prices for November average $1,219 per person but you can even find prices for as low as $784. The most expensive prices can be found in the month of December. Opting for a November flight can save you 19% on your journey compared to booking in December

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.

$319+ Flights from Seattle to Santiago

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

Cheap flight deals from Seattle to Santiago

Round-trip from	$824 (Copa Airlines)
One-way from	$319 (Kiwi.com)
Popular in	December
Cheapest in	November
Average price	$1,133

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. 1% potential increase in price ($15 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 August 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 August 14, 2025.

Mon 11/311:07 amSEA - SCL

2 stops23h 13mMultiple Airlines

Tue 11/1111:25 pmSCL - SEA

1 stop28h 05mMultiple Airlines

Deal found 8/14

$826

Mon 9/2912:00 pmSEA - SCL

2 stops31h 30mMultiple Airlines

Mon 10/67:10 amSCL - SEA

2 stops31h 49mMultiple Airlines

Deal found 8/14

$827

Mon 9/11:12 pmSEA - SCL

2 stops37h 48mMultiple Airlines

Mon 9/1511:00 amSCL - SEA

1 stop39h 26mMultiple Airlines

Deal found 8/14

$883

Sat 9/69:39 pmSEA - SCL

1 stop28h 21mMultiple Airlines

Sat 9/2011:00 amSCL - SEA

2 stops41h 30mMultiple Airlines

Deal found 8/14

$891

Tue 9/96:41 amSEA - SCL

1 stop21h 09mMultiple Airlines

Thu 9/259:15 pmSCL - SEA

2 stops29h 11mMultiple Airlines

Deal found 8/14

$909

Fri 8/296:00 amSEA - SCL

2 stops19h 15mMultiple Airlines

Tue 9/211:05 pmSCL - SEA

1 stop26h 21mMultiple Airlines

Deal found 8/13

$928

Mon 9/11:12 pmSEA - SCL

2 stops37h 48mMultiple Airlines

Sun 9/1410:45 amSCL - SEA

1 stop27h 35mMultiple Airlines

Deal found 8/14

$929

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 August 14, 2025.

Thu 1/295:00 pmSEA - SCL

2 stops22h 20mCopa Airlines

Fri 2/61:16 amSCL - SEA

2 stops26h 02mCopa Airlines

Deal found 8/13

$824

Mon 11/311:07 amSEA - SCL

2 stops23h 13mMultiple Airlines

Tue 11/1111:25 pmSCL - SEA

1 stop28h 05mMultiple Airlines

Deal found 8/14

$826

Mon 9/2912:00 pmSEA - SCL

2 stops31h 30mMultiple Airlines

Mon 10/67:10 amSCL - SEA

2 stops31h 49mMultiple Airlines

Deal found 8/14

$827

Sun 1/115:00 pmSEA - SCL

2 stops26h 32mCopa Airlines

Sun 1/255:20 amSCL - SEA

2 stops21h 58mCopa Airlines

Deal found 8/12

$931

Mon 9/11:12 pmSEA - SCL

2 stops37h 48mMultiple Airlines

Mon 9/1511:00 amSCL - SEA

1 stop39h 26mMultiple Airlines

Deal found 8/14

$883

Sat 9/69:39 pmSEA - SCL

1 stop28h 21mMultiple Airlines

Sat 9/2011:00 amSCL - SEA

2 stops41h 30mMultiple Airlines

Deal found 8/14

$891

Tue 9/96:41 amSEA - SCL

1 stop21h 09mMultiple Airlines

Thu 9/259:15 pmSCL - SEA

2 stops29h 11mMultiple Airlines

Deal found 8/14

$909

Last-minute flights from Seattle to Santiago
Discover last-minute flight deals from Seattle to Santiago. Data last updated August 14, 2025 and is based on user searches.

Sun 8/248:19 amSEA - SCL

2 stops26h 06mMultiple Airlines

Fri 8/2911:05 pmSCL - SEA

1 stop26h 00mMultiple Airlines

Deal found 8/13

$1,104

Sun 8/247:44 amSEA - SCL

2 stops20h 11mAmerican Airlines

Wed 9/39:55 pmSCL - SEA

2 stops24h 14mAmerican Airlines

Deal found 8/13

$1,178

Sun 8/245:35 pmSEA - SCL

2 stops32h 27mCopa Airlines

Tue 9/22:26 amSCL - SEA

2 stops22h 49mCopa Airlines

Deal found 8/14

$1,236

Sun 8/247:10 amSEA - SCL

2 stops18h 35mLATAM Airlines

Wed 9/310:55 pmSCL - SEA

1 stop18h 49mLATAM Airlines

Deal found 8/14

$1,239

Sun 8/248:35 amSEA - SCL

2 stops29h 00mLATAM Airlines

Sun 8/317:45 pmSCL - SEA

2 stops29h 38mLATAM Airlines

Deal found 8/14

$1,253

Sun 8/247:44 amSEA - SCL

2 stops20h 11mAmerican Airlines

Fri 8/299:55 pmSCL - SEA

2 stops22h 02mAmerican Airlines

Deal found 8/14

$1,268

Sun 8/248:35 amSEA - SCL

2 stops24h 45mLATAM Airlines

Fri 8/2910:45 pmSCL - SEA

1 stop16h 49mLATAM Airlines

Deal found 8/14

$1,278

Fri 8/296:00 amSEA - SCL

2 stops19h 15mMultiple Airlines

Tue 9/211:05 pmSCL - SEA

1 stop26h 21mMultiple Airlines

Deal found 8/13

$928

Mon 9/11:12 pmSEA - SCL

2 stops37h 48mMultiple Airlines

Mon 9/1511:00 amSCL - SEA

1 stop39h 26mMultiple Airlines

Deal found 8/14

$883

Mon 9/11:12 pmSEA - SCL

2 stops37h 48mMultiple Airlines

Sun 9/1410:45 amSCL - SEA

1 stop27h 35mMultiple Airlines

Deal found 8/14

$929

Sat 9/69:39 pmSEA - SCL

1 stop28h 21mMultiple Airlines

Sat 9/2011:00 amSCL - SEA

2 stops41h 30mMultiple Airlines

Deal found 8/14

$891

Tue 9/96:41 amSEA - SCL

1 stop21h 09mMultiple Airlines

Thu 9/259:15 pmSCL - SEA

2 stops29h 11mMultiple Airlines

Deal found 8/14

$909

One-way flights from Seattle to Santiago
Search for one-way flight options from Seattle to Santiago. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Tue 9/167:05 pmSEA - SCL

3 stops24h 25mMultiple Airlines

Deal found 8/13

$319

Tue 9/235:05 pmSEA - SCL

3 stops41h 20mMultiple Airlines

Deal found 8/13

$327

Fri 9/127:00 amSEA - SCL

3 stops27h 25mMultiple Airlines

Deal found 8/13

$339

Mon 9/228:25 amSEA - SCL

2 stops39h 10mMultiple Airlines

Deal found 8/13

$379

Mon 10/68:30 amSEA - SCL

2 stops33h 40mMultiple Airlines

Deal found 8/14

$380

Fri 12/57:05 pmSEA - SCL

3 stops46h 10mMultiple Airlines

Deal found 8/12

$411

Sat 9/209:15 pmSEA - SCL

2 stops54h 25mMultiple Airlines

Deal found 8/13

$442

Fly from

Fly to

Route

Depart

Return

Price

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Thu 1/29

5:00 pm-8:20 pm

2 stops22h 20m

Santiago Arturo Merino Benitez

Fri 2/6

1:16 am-10:18 pm

2 stops26h 02m

$824

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 11/3

11:07 am-3:20 pm

2 stops23h 13m

Santiago Arturo Merino Benitez

Tue 11/11

11:25 pm-10:30 pm

1 stop28h 05m

$826

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 9/29

12:00 pm-11:30 pm

2 stops31h 30m

Santiago Arturo Merino Benitez

Mon 10/6

7:10 am-10:59 am

2 stops31h 49m

$827

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 9/1

1:12 pm-6:00 am

2 stops37h 48m

Santiago Arturo Merino Benitez

Mon 9/15

11:00 am-10:26 pm

1 stop39h 26m

$883

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sat 9/6

9:39 pm-6:00 am

1 stop28h 21m

Santiago Arturo Merino Benitez

Sat 9/20

11:00 am-12:30 am

2 stops41h 30m

$891

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 9/9

6:41 am-7:50 am

1 stop21h 09m

Santiago Arturo Merino Benitez

Thu 9/25

9:15 pm-10:26 pm

2 stops29h 11m

$909

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sun 1/11

5:00 pm-12:32 am

2 stops26h 32m

Santiago Arturo Merino Benitez

Sun 1/25

5:20 am-10:18 pm

2 stops21h 58m

$931

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 9/16

7:05 pm-11:30 pm

3 stops24h 25m

$319

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 9/23

5:05 pm-2:25 pm

3 stops41h 20m

$327

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Fri 9/12

7:00 am-2:25 pm

3 stops27h 25m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 13 results

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?

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?

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.

Reviews of airlines servicing Santiago

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

7,980 reviews

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

7,980 reviews

Delta

8.0

Very good

7,980 reviews

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

1,840 reviews

Delta

8.0

Very good

7,980 reviews

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

1,509 reviews

Delta

8.0

Very good

7,980 reviews

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!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,980 reviews

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!

Air Canada

7.1

Good

9,949 reviews

Delta

8.0

Very good

7,980 reviews

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

What are the cheapest airlines flying from Seattle to Santiago round-trip?
According to our current data, Air Canada ($805), American Airlines ($902), and Copa Airlines ($918) offers the cheapest pricing from Seattle to Santiago. You may be able to fly from Seattle to Santiago for 33% less than the average price by searching for these airlines.
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 Dos Equis Pavilion. American Airlines Center, Dallas World Aquarium, and Dos Equis Pavilion can be visited by traveling about 15.0 mi, 15.5 mi, and 18.3 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 $52.
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

Alternative routes for Seattle to Santiago

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Other flights to Santiago

Top 5 airlines flying from Seattle to Santiago

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$805	Average$933	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$902	Average$1,171	FlexibilityNo cancel fee	On-time71%
Copa Airlines	Cheapest$918	Average$1,084	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$1,002	Average$1,353	FlexibilityNo cancel fee	On-timeN/A
LATAM Airlines	Cheapest$1,028	Average$1,299	FlexibilityNo cancel fee	On-time81%

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$319+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Santiago with Cheapflights

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

Cheap flight deals from Seattle to Santiago

Round-trip from

One-way from

Popular in

Cheapest in

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Find flight deals from Seattle to Santiago

Cheapest flights from Seattle to SantiagoExplore 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 August 14, 2025.

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 August 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Santiago that are best for you.

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.

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 August 8, 2025.

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

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 August 14, 2025.

Reviews of airlines servicing Santiago

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.

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

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

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

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

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

How can I find direct flights from Seattle to Santiago?

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

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

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.

Alternative routes for Seattle to Santiago

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Seattle to Santiago

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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 August 14, 2025.