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Cheap flights from Seattle to Santiago from $349

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 8/8. 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

Logo
8:25 am - 10:15 pmSEA-SCL
33h 50m2 stops
Logo
11:00 am - 10:33 pmSCL-SEA
39h 33m1 stop
$793
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Mon, Sep 29 - Tue, Oct 7
Logo
8:25 am - 10:15 pmSEA-SCL
33h 50m2 stops
Logo
11:00 am - 10:26 pmSCL-SEA
39h 26m1 stop
$823
Find Deal
Sun, Sep 14 - Sun, Sep 21
Copa Airlines Logo
12:41 pm - 12:06 amSEA-SCL
30h 25m2 stops
Copa Airlines Logo
5:12 am - 11:39 amSCL-SEA
35h 27m2 stops
$842Copa Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 17
LATAM Airlines Logo
8:30 am - 6:30 amSEA-SCL
18h 00m1 stop
LATAM Airlines Logo
10:55 pm - 2:38 pmSCL-SEA
19h 43m1 stop
$847LATAM Airlines
Find Deal
Mon, Sep 29 - Tue, Oct 7
LATAM Airlines Logo
8:00 am - 7:00 amSEA-SCL
19h 00m1 stop
LATAM Airlines Logo
11:55 pm - 1:00 pmSCL-SEA
18h 05m1 stop
$867LATAM Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 25
Delta Logo
1:30 pm - 5:20 pmSEA-SCL
22h 50m2 stops
Delta Logo
11:15 pm - 2:54 pmSCL-SEA
20h 39m1 stop
$914Delta
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Mon, Jan 5 - Mon, Feb 2
American Airlines Logo
1:37 am - 7:50 amSEA-SCL
25h 13m1 stop
American Airlines Logo
11:55 pm - 2:49 pmSCL-SEA
19h 54m2 stops
$918American Airlines
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Sun, Jan 4 - Mon, Feb 2
American Airlines Logo
12:59 am - 7:50 amSEA-SCL
25h 51m1 stop
American Airlines Logo
11:15 pm - 1:10 pmSCL-SEA
18h 55m1 stop
$927American Airlines
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Sun, Nov 9 - Mon, Nov 17
Copa Airlines Logo
5:14 pm - 12:04 amSEA-SCL
26h 50m2 stops
Copa Airlines Logo
5:11 am - 11:56 amSCL-SEA
34h 45m2 stops
$931Copa Airlines
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Sun, Sep 21 - Mon, Sep 29
Delta Logo
6:00 am - 4:45 amSEA-SCL
19h 45m2 stops
Delta Logo
4:55 pm - 12:23 pmSCL-SEA
22h 28m2 stops
$1,024Delta
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Sun, Aug 24 - Wed, Sep 3

LATAM Airlines flights from Seattle to Santiago

Our best LATAM Airlines deals on Seattle to Santiago flight tickets
LATAM Airlines
Sep 29
SEA8:30 amSeattle/Tacoma Intl
18h 00m
1 stop
SCL6:30 amSantiago Arturo Merino Benitez
Oct 7
SCL10:55 pmSantiago Arturo Merino Benitez
19h 43m
1 stop
SEA2:38 pmSeattle/Tacoma Intl
$847
Find similar
LATAM Airlines
Oct 28
SEA8:00 amSeattle/Tacoma Intl
19h 00m
1 stop
SCL7:00 amSantiago Arturo Merino Benitez
Nov 25
SCL11:55 pmSantiago Arturo Merino Benitez
18h 05m
1 stop
SEA1:00 pmSeattle/Tacoma Intl
$867
Find similar
LATAM Airlines
Sep 29
SEA7:25 amSeattle/Tacoma Intl
19h 05m
2 stops
SCL6:30 amSantiago Arturo Merino Benitez
Oct 6
SCL12:25 amSantiago Arturo Merino Benitez
22h 35m
2 stops
SEA7:00 pmSeattle/Tacoma Intl
$871
Find similar

Copa Airlines flights from Seattle to Santiago

Our best Copa Airlines deals on Seattle to Santiago flight tickets
Copa Airlines
Nov 10
SEA12:41 pmSeattle/Tacoma Intl
30h 25m
2 stops
SCL12:06 amSantiago Arturo Merino Benitez
Nov 17
SCL5:12 amSantiago Arturo Merino Benitez
35h 27m
2 stops
SEA11:39 amSeattle/Tacoma Intl
$842
Find similar
Copa Airlines
Sep 21
SEA5:14 pmSeattle/Tacoma Intl
26h 50m
2 stops
SCL12:04 amSantiago Arturo Merino Benitez
Sep 29
SCL5:11 amSantiago Arturo Merino Benitez
34h 45m
2 stops
SEA11:56 amSeattle/Tacoma Intl
$931
Find similar
Copa Airlines
Sep 25
SEA5:26 pmSeattle/Tacoma Intl
26h 14m
2 stops
SCL11:40 pmSantiago Arturo Merino Benitez
Sep 28
SCL1:13 amSantiago Arturo Merino Benitez
24h 40m
2 stops
SEA9:53 pmSeattle/Tacoma Intl
$976
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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 July 31, 2025.
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 9/29

8:25 am-10:15 pm

2 stops33h 50m

Santiago Arturo Merino Benitez

Tue 10/7

11:00 am-10:33 pm

1 stop39h 33m

$793

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sun 9/14

8:25 am-10:15 pm

2 stops33h 50m

Santiago Arturo Merino Benitez

Sun 9/21

11:00 am-10:26 pm

1 stop39h 26m

$823

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 11/10

12:41 pm-12:06 am

2 stops30h 25m

Santiago Arturo Merino Benitez

Mon 11/17

5:12 am-11:39 am

2 stops35h 27m

$842

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 9/29

8:30 am-6:30 am

1 stop18h 00m

Santiago Arturo Merino Benitez

Tue 10/7

10:55 pm-2:38 pm

1 stop19h 43m

$847

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 10/28

8:00 am-7:00 am

1 stop19h 00m

Santiago Arturo Merino Benitez

Tue 11/25

11:55 pm-1:00 pm

1 stop18h 05m

$867

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Mon 1/5

1:30 pm-5:20 pm

2 stops22h 50m

Santiago Arturo Merino Benitez

Mon 2/2

11:15 pm-2:54 pm

1 stop20h 39m

$914

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sun 1/4

1:37 am-7:50 am

1 stop25h 13m

Santiago Arturo Merino Benitez

Mon 2/2

11:55 pm-2:49 pm

2 stops19h 54m

$918

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sun 11/9

12:59 am-7:50 am

1 stop25h 51m

Santiago Arturo Merino Benitez

Mon 11/17

11:15 pm-1:10 pm

1 stop18h 55m

$927

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sun 9/21

5:14 pm-12:04 am

2 stops26h 50m

Santiago Arturo Merino Benitez

Mon 9/29

5:11 am-11:56 am

2 stops34h 45m

$931

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Sun 8/24

6:00 am-4:45 am

2 stops19h 45m

Santiago Arturo Merino Benitez

Wed 9/3

4:55 pm-12:23 pm

2 stops22h 28m

$1,024

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, November 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 $1,053. If you don’t want to visit Santiago in November, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $1,114.

What is the cheapest day to depart on your flight to Santiago?

The cheapest day to depart on your flight to Santiago is on a Tuesday when prices can be found for as low as $1,092. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Santiago on Saturday is $1,376.

What is the cheapest time of day to depart on your flight to Santiago?

In the afternoon is the cheapest time of day to fly from Seattle to Santiago when you can find flight prices for as low as $1,024. Flying to Santiago in the afternoon is an ideal time because this is during off-peak travel hours. In the evening is when there is more demand to fly to Santiago, so prices are often more expensive at around $1,324 per ticket.

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 $1,228 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 $1,062 on momondo.

Can stopping save me money on Seattle to Santiago flights?

You could potentially save up to 33% 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 July 2025, prices for Seattle to Santiago flights are approximately 88% 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

Best Price Found

$349

Fastest flight time

15h 50m

Direct flights

None

Airports in Santiago

1 airport
The best one-way flight to Santiago from Seattle in the past 72 hours is $349. The best round-trip flight deal from Seattle to Santiago found on momondo in the last 72 hours is $793.
The fastest flight from Seattle to Santiago takes 15h 50m
There are no direct flights from Seattle to Santiago. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Santiago Arturo Merino Benitez Airport.
There is 1 airport near Santiago: Santiago Arturo Merino Benitez (SCL)
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  • 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 15h 50m.

  • 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
Air CanadaPriceFrom $805Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
American AirlinesPriceFrom $902Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Copa AirlinesPriceFrom $918Free CancellationRating
7.5
1,493 reviews
Search Copa Airlines flights
DeltaPriceFrom $1,002Free CancellationRating
8.0
7,981 reviews
Search Delta flights
LATAM AirlinesPriceFrom $1,027Free CancellationRating
7.5
1,822 reviews
Search LATAM Airlines flights

Traveling to a place near Santiago?

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

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.

An easier way to manage your Santiago trip

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