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Cheap flights from Seattle to Santiago from $324

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 10/15. 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

Multiple Airlines Logo
10:08 am - 8:21 pmSEA-SCL
30h 13m2 stops
Multiple Airlines Logo
11:25 pm - 10:30 pmSCL-SEA
28h 05m1 stop
$771Multiple Airlines
Find Deal
Sat, Nov 1 - Wed, Nov 12
Multiple Airlines Logo
10:08 am - 8:20 pmSEA-SCL
30h 12m2 stops
Multiple Airlines Logo
11:25 pm - 10:30 pmSCL-SEA
28h 05m1 stop
$777Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Multiple Airlines Logo
10:08 am - 8:20 pmSEA-SCL
30h 12m2 stops
Multiple Airlines Logo
11:25 pm - 10:30 pmSCL-SEA
28h 05m1 stop
$786Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Air Canada Logo
10:05 am - 12:15 pmSEA-SCL
21h 10m2 stops
Air Canada Logo
7:55 pm - 7:16 pmSCL-SEA
27h 21m2 stops
$789Air Canada
Find Deal
Fri, Mar 6 - Tue, Mar 10
Air Canada Logo
8:15 am - 12:15 pmSEA-SCL
23h 00m1 stop
Air Canada Logo
7:55 pm - 7:16 pmSCL-SEA
27h 21m2 stops
$795Air Canada
Find Deal
Fri, Mar 6 - Tue, Mar 10
Air Canada Logo
8:15 am - 12:15 pmSEA-SCL
23h 00m1 stop
Air Canada Logo
7:55 pm - 10:16 pmSCL-SEA
30h 21m1 stop
$798Air Canada
Find Deal
Fri, Mar 6 - Tue, Mar 10
Copa Airlines Logo
3:00 pm - 12:34 amSEA-SCL
29h 34m2 stops
Copa Airlines Logo
4:20 am - 10:18 pmSCL-SEA
20h 58m2 stops
$824Copa Airlines
Find Deal
Tue, Mar 10 - Tue, Apr 14
Copa Airlines Logo
3:00 pm - 11:49 pmSEA-SCL
28h 49m2 stops
Copa Airlines Logo
2:34 am - 10:18 pmSCL-SEA
22h 44m2 stops
$842Copa Airlines
Find Deal
Tue, Mar 10 - Mon, Apr 13
Copa Airlines Logo
5:26 pm - 11:40 pmSEA-SCL
26h 14m2 stops
Copa Airlines Logo
12:29 pm - 11:56 amSCL-SEA
27h 27m2 stops
$846Copa Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Copa Airlines Logo
3:00 pm - 3:58 amSEA-SCL
32h 58m2 stops
Copa Airlines Logo
1:38 am - 10:18 pmSCL-SEA
24h 40m2 stops
$949Copa Airlines
Find Deal
Wed, Mar 11 - Sun, Mar 22

Air Canada flights from Seattle to Santiago

Our best Air Canada deals on Seattle to Santiago flight tickets
Air Canada
Mar 6
SEA10:05 amSeattle/Tacoma Intl
21h 10m
2 stops
SCL12:15 pmSantiago Arturo Merino Benitez
Mar 10
SCL7:55 pmSantiago Arturo Merino Benitez
27h 21m
2 stops
SEA7:16 pmSeattle/Tacoma Intl
$789
Find similar
Air Canada
Mar 6
SEA8:15 amSeattle/Tacoma Intl
23h 00m
1 stop
SCL12:15 pmSantiago Arturo Merino Benitez
Mar 10
SCL7:55 pmSantiago Arturo Merino Benitez
27h 21m
2 stops
SEA7:16 pmSeattle/Tacoma Intl
$795
Find similar
Air Canada
Mar 6
SEA8:15 amSeattle/Tacoma Intl
23h 00m
1 stop
SCL12:15 pmSantiago Arturo Merino Benitez
Mar 10
SCL7:55 pmSantiago Arturo Merino Benitez
30h 21m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
$798
Find similar

Copa Airlines flights from Seattle to Santiago

Our best Copa Airlines deals on Seattle to Santiago flight tickets
Copa Airlines
Mar 10
SEA3:00 pmSeattle/Tacoma Intl
29h 34m
2 stops
SCL12:34 amSantiago Arturo Merino Benitez
Apr 14
SCL4:20 amSantiago Arturo Merino Benitez
20h 58m
2 stops
SEA10:18 pmSeattle/Tacoma Intl
$824
Find similar
Copa Airlines
Mar 10
SEA3:00 pmSeattle/Tacoma Intl
28h 49m
2 stops
SCL11:49 pmSantiago Arturo Merino Benitez
Apr 13
SCL2:34 amSantiago Arturo Merino Benitez
22h 44m
2 stops
SEA10:18 pmSeattle/Tacoma Intl
$842
Find similar
Copa Airlines
Oct 14
SEA5:26 pmSeattle/Tacoma Intl
26h 14m
2 stops
SCL11:40 pmSantiago Arturo Merino Benitez
Oct 21
SCL12:29 pmSantiago Arturo Merino Benitez
27h 27m
2 stops
SEA11:56 amSeattle/Tacoma Intl
$846
Find similar

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 September 16, 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

Sat 11/1

10:08 am-8:21 pm

2 stops30h 13m

Santiago Arturo Merino Benitez

Wed 11/12

11:25 pm-10:30 pm

1 stop28h 05m

$771

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Thu 10/30

10:08 am-8:20 pm

2 stops30h 12m

Santiago Arturo Merino Benitez

Thu 11/6

11:25 pm-10:30 pm

1 stop28h 05m

$777

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Thu 10/30

10:08 am-8:20 pm

2 stops30h 12m

Santiago Arturo Merino Benitez

Thu 11/6

11:25 pm-10:30 pm

1 stop28h 05m

$786

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Fri 3/6

10:05 am-12:15 pm

2 stops21h 10m

Santiago Arturo Merino Benitez

Tue 3/10

7:55 pm-7:16 pm

2 stops27h 21m

$789

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Fri 3/6

8:15 am-12:15 pm

1 stop23h 00m

Santiago Arturo Merino Benitez

Tue 3/10

7:55 pm-7:16 pm

2 stops27h 21m

$795

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Fri 3/6

8:15 am-12:15 pm

1 stop23h 00m

Santiago Arturo Merino Benitez

Tue 3/10

7:55 pm-10:16 pm

1 stop30h 21m

$798

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 3/10

3:00 pm-12:34 am

2 stops29h 34m

Santiago Arturo Merino Benitez

Tue 4/14

4:20 am-10:18 pm

2 stops20h 58m

$824

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 3/10

3:00 pm-11:49 pm

2 stops28h 49m

Santiago Arturo Merino Benitez

Mon 4/13

2:34 am-10:18 pm

2 stops22h 44m

$842

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Tue 10/14

5:26 pm-11:40 pm

2 stops26h 14m

Santiago Arturo Merino Benitez

Tue 10/21

12:29 pm-11:56 am

2 stops27h 27m

$846

SeattleSantiago

SEA - SCL

SEASCL

Seattle/Tacoma Intl

Wed 3/11

3:00 pm-3:58 am

2 stops32h 58m

Santiago Arturo Merino Benitez

Sun 3/22

1:38 am-10:18 pm

2 stops24h 40m

$949

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 July to fly from Seattle, when ticket prices are also cheap, with an average price of $1,100.

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 $1,226 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 $1,073 on momondo.

Can stopping save me money on Seattle to Santiago flights?

You could potentially save up to 38% 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 September 2025, prices for Seattle to Santiago flights are approximately 23% 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

Direct flights

None
There are no direct flights from Seattle to Santiago. There are no popular flight routes from Seattle to Santiago.
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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 17h 15m.

  • 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
10,000 reviews
Search Air Canada flights
American AirlinesPriceFrom $882Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Copa AirlinesPriceFrom $918Free CancellationRating
7.6
1,531 reviews
Search Copa Airlines flights
LATAM AirlinesPriceFrom $994Free CancellationRating
7.5
1,847 reviews
Search LATAM Airlines flights
DeltaPriceFrom $1,002Free CancellationRating
7.9
7,957 reviews
Search Delta flights
United AirlinesPriceFrom $1,068Free CancellationRating
7.4
8,924 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
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.

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