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Cheap flights from Seattle to Santiago from $334

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Santiago departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Santiago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:09 pm - 2:35 am
SEA
-
SCL
25h 26m
2 stops
Multiple Airlines Logo
11:00 pm - 9:49 pm
SCL
-
SEA
25h 49m
1 stop
$765Multiple Airlines
Mon, May 4 - Tue, May 12
LATAM Airlines Logo
7:20 am - 7:50 am
SEA
-
SCL
20h 30m
1 stop
LATAM Airlines Logo
11:25 pm - 2:51 pm
SCL
-
SEA
18h 26m
1 stop
$790LATAM Airlines
Wed, Apr 1 - Tue, Apr 28
Multiple Airlines Logo
8:05 am - 10:15 pm
SEA
-
SCL
34h 10m
2 stops
Multiple Airlines Logo
11:00 pm - 10:00 pm
SCL
-
SEA
26h 00m
1 stop
$798Multiple Airlines
Tue, Mar 24 - Mon, Apr 6
LATAM Airlines Logo
7:20 am - 7:50 am
SEA
-
SCL
20h 30m
1 stop
LATAM Airlines Logo
11:25 pm - 12:37 pm
SCL
-
SEA
16h 12m
1 stop
$800LATAM Airlines
Wed, Apr 1 - Tue, Apr 28
Multiple Airlines Logo
8:05 am - 10:15 pm
SEA
-
SCL
34h 10m
2 stops
Multiple Airlines Logo
11:00 pm - 10:00 pm
SCL
-
SEA
26h 00m
1 stop
$819Multiple Airlines
Tue, Mar 24 - Sun, Apr 5
LATAM Airlines Logo
7:35 am - 5:35 am
SEA
-
SCL
19h 00m
1 stop
LATAM Airlines Logo
10:55 pm - 2:29 pm
SCL
-
SEA
18h 34m
1 stop
$824LATAM Airlines
Mon, May 4 - Tue, May 12
LATAM Airlines Logo
7:20 am - 7:50 am
SEA
-
SCL
20h 30m
1 stop
LATAM Airlines Logo
4:10 am - 9:05 pm
SCL
-
SEA
19h 55m
2 stops
$827LATAM Airlines
Wed, Apr 1 - Tue, Apr 28
Multiple Airlines Logo
10:43 pm - 5:14 am
SEA
-
SCL
26h 31m
2 stops
Multiple Airlines Logo
11:00 pm - 10:00 pm
SCL
-
SEA
26h 00m
1 stop
$835Multiple Airlines
Wed, Mar 25 - Mon, Apr 6
LATAM Airlines Logo
7:20 am - 7:50 am
SEA
-
SCL
20h 30m
1 stop
LATAM Airlines Logo
4:10 am - 9:05 pm
SCL
-
SEA
19h 55m
2 stops
$837LATAM Airlines
Wed, Apr 1 - Tue, Apr 28
Multiple Airlines Logo
7:05 am - 5:55 am
SEA
-
SCL
18h 50m
1 stop
Multiple Airlines Logo
5:59 am - 9:44 pm
SCL
-
SEA
43h 45m
2 stops
$849Multiple Airlines
Wed, Mar 11 - Thu, Mar 19

LATAM Airlines flights from Seattle to Santiago

Our best LATAM Airlines deals on Seattle to Santiago flight tickets
LATAM Airlines
Apr 1
SEA7:20 amSeattle/Tacoma Intl
20h 30m
1 stop
SCL7:50 amSantiago Arturo Merino Benitez
Apr 28
SCL11:25 pmSantiago Arturo Merino Benitez
16h 12m
1 stop
SEA12:37 pmSeattle/Tacoma Intl
$790
LATAM Airlines
Apr 1
SEA7:20 amSeattle/Tacoma Intl
20h 30m
1 stop
SCL7:50 amSantiago Arturo Merino Benitez
Apr 28
SCL11:25 pmSantiago Arturo Merino Benitez
16h 12m
1 stop
SEA12:37 pmSeattle/Tacoma Intl
$800
LATAM Airlines
May 4
SEA7:35 amSeattle/Tacoma Intl
19h 00m
1 stop
SCL5:35 amSantiago Arturo Merino Benitez
May 12
SCL10:55 pmSantiago Arturo Merino Benitez
18h 34m
1 stop
SEA2:29 pmSeattle/Tacoma Intl
$824

United Airlines flights from Seattle to Santiago

Our best United Airlines deals on Seattle to Santiago flight tickets
United Airlines
Feb 17
SEA6:45 amSeattle/Tacoma Intl
21h 05m
1 stop
SCL8:50 amSantiago Arturo Merino Benitez
Feb 27
SCL10:45 pmSantiago Arturo Merino Benitez
24h 18m
2 stops
SEA6:03 pmSeattle/Tacoma Intl
$1,235
United Airlines
Feb 17
SEA6:45 amSeattle/Tacoma Intl
21h 05m
1 stop
SCL8:50 amSantiago Arturo Merino Benitez
Feb 27
SCL10:45 pmSantiago Arturo Merino Benitez
27h 16m
3 stops
SEA9:01 pmSeattle/Tacoma Intl
$1,240
United Airlines
Feb 21
SEA12:15 pmSeattle/Tacoma Intl
39h 35m
2 stops
SCL8:50 amSantiago Arturo Merino Benitez
Feb 24
SCL10:45 pmSantiago Arturo Merino Benitez
20h 04m
2 stops
SEA1:49 pmSeattle/Tacoma Intl
$1,265

momondo 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, momondo users made 832,500 searches. Data last updated February 8, 2026.
Use the filters below to find and compare flights from Seattle to Santiago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 5/4

10:09 pm-2:35 am

2 stops25h 26m

Santiago Arturo Merino Benitez

Tue 5/12

11:00 pm-9:49 pm

1 stop25h 49m

$765

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Wed 4/1

7:20 am-7:50 am

1 stop20h 30m

Santiago Arturo Merino Benitez

Tue 4/28

11:25 pm-2:51 pm

1 stop18h 26m

$790

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 3/24

8:05 am-10:15 pm

2 stops34h 10m

Santiago Arturo Merino Benitez

Mon 4/6

11:00 pm-10:00 pm

1 stop26h 00m

$798

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Wed 4/1

7:20 am-7:50 am

1 stop20h 30m

Santiago Arturo Merino Benitez

Tue 4/28

11:25 pm-12:37 pm

1 stop16h 12m

$800

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 3/24

8:05 am-10:15 pm

2 stops34h 10m

Santiago Arturo Merino Benitez

Sun 4/5

11:00 pm-10:00 pm

1 stop26h 00m

$819

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 5/4

7:35 am-5:35 am

1 stop19h 00m

Santiago Arturo Merino Benitez

Tue 5/12

10:55 pm-2:29 pm

1 stop18h 34m

$824

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Wed 4/1

7:20 am-7:50 am

1 stop20h 30m

Santiago Arturo Merino Benitez

Tue 4/28

4:10 am-9:05 pm

2 stops19h 55m

$827

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Wed 3/25

10:43 pm-5:14 am

2 stops26h 31m

Santiago Arturo Merino Benitez

Mon 4/6

11:00 pm-10:00 pm

1 stop26h 00m

$835

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Wed 4/1

7:20 am-7:50 am

1 stop20h 30m

Santiago Arturo Merino Benitez

Tue 4/28

4:10 am-9:05 pm

2 stops19h 55m

$837

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Wed 3/11

7:05 am-5:55 am

1 stop18h 50m

Santiago Arturo Merino Benitez

Thu 3/19

5:59 am-9:44 pm

2 stops43h 45m

$849

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Santiago from

How to get the cheapest flight ticket from Seattle to Santiago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Santiago?

In general, January is the cheapest month to fly from Seattle to Santiago. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,049. If you don’t want to visit Santiago in January, then you should wait until November to fly from Seattle, when ticket prices are also cheap, with an average price of $1,053.

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

You are more likely to see cheaper flights to Santiago from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Santiago for around $1,174 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Santiago from Seattle for as low as $979 on momondo.

Can stopping save me money on Seattle to Santiago flights?

You could potentially save up to 1% on your flight if you consider stops on a Seattle to Santiago flight.

How have Seattle to Santiago flight prices changed over time?

As of February 2026, prices for Seattle to Santiago flights are approximately 29% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Santiago

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Santiago according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Santiago (SEA to SCL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Santiago

Fastest flight time

18h 40m

Direct flights

None
The fastest flight from Seattle to Santiago takes 18h 40m
There are no direct flights from Seattle to Santiago. There are no popular flight routes from Seattle to Santiago.
Search flight deals

  • How far is Seattle/Tacoma Intl to Santiago Arturo Merino Benitez by plane?

    Seattle/Tacoma Intl and Santiago Arturo Merino Benitez are 6445.1 mi apart from one another. In terms of flight time, this usually takes a little over 18h 40m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Santiago Arturo Merino Benitez Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Santiago Arturo Merino Benitez Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Santiago Arturo Merino Benitez Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Santiago Arturo Merino Benitez Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Santiago Arturo Merino Benitez Airport.

  • What documentation or ID do you need to fly to Santiago Arturo Merino Benitez Airport?

    The travel and health documents you'll need for your trip to Santiago Arturo Merino Benitez Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Santiago Arturo Merino Benitez Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Santiago?

Best airlines flying from Seattle to Santiago

Compare and see reviews for airlines that fly from Seattle to Santiago with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom $888Free CancellationRating
7.5
1,916 reviews
Search LATAM Airlines flights
DeltaPriceFrom $895Free CancellationRating
7.9
8,172 reviews
Search Delta flights
American AirlinesPriceFrom $918Free CancellationRating
7.2
11,249 reviews
Search American Airlines flights
United AirlinesPriceFrom $1,018Free CancellationRating
7.4
9,254 reviews
Search United Airlines flights

Traveling to a place near Santiago?

Book flights to Santiago if you plan to visit one of these locations
Viña del Mar
Valparaíso
Santa Cruz
Valle Nevado
San Fernando
Pichilemu
Zapallar

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Santiago?

Finding the right flight to Santiago from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Santiago quick and easy, saving you time and money.

Can I find flights from Seattle to Santiago with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Santiago from Seattle with this policy.

How can momondo help me find flights from Seattle to Santiago?

Once you have performed a search for Seattle to Santiago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Seattle to Santiago right now. Can momondo alert me if prices change?

Price alerts on flights to Santiago from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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