Cheap flights from Seattle to Santiago from $328
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 9/15. 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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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 $1,052. 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 $1,075.
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 26 weeks ahead of your departure date. In general, you can expect to find flights to Santiago for around $1,225 when searching 26 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 35% 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 June 2025, prices for Seattle to Santiago flights are approximately 141% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Santiago Arturo Merino Benitez?
Copa Airlines, Avianca, and LATAM Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Santiago Arturo Merino Benitez
What airlines fly to Santiago?
LATAM Airlines, American Airlines and Delta are the top three most popular airlines that fly to Santiago from Seattle according to our data. LATAM Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Santiago. Keep in mind that there are 5 different airlines that fly to Santiago on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to Santiago
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
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 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?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Santiago Arturo Merino Benitez Airport is 5 as of June 2025.
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?
momondo data reveals that the most frequently booked airline on the route from Seattle to Santiago is LATAM Airlines, representing 38% of all bookings. The subsequent popular airlines are American Airlines at 35%, Delta at 20%, and Copa Airlines at 5%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $805 | Free Cancellation | Rating 7.1 9,537 reviews | |||
| PriceFrom $902 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $912 | Free Cancellation | Rating 7.5 1,451 reviews | |||
| PriceFrom $993 | Free Cancellation | Rating 7.5 1,785 reviews | |||
| PriceFrom $1,002 | Free Cancellation | Rating 8.0 7,946 reviews |
Traveling to a place near Santiago?
Book flights to Santiago if you plan to visit one of these locationsWhy 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.