SEA - SCL

$359 Find Cheap Flights from Seattle to Santiago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Santiago departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Santiago

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Santiago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Santiago, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$897
Typical prices: $1,004-$1,322
Air Canada
Fri 3/6Mon 3/16
SEA - SCL • 2 stops
Cheapest one-way
$359
Typical prices: $523-$738
Multiple Airlines
Sun 4/12
SEA - SCL • 3 stops
Top airlines
Avianca
Cheapest • from $943 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
6 weeks
in advance
Our data shows that travelers who book at least 6 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 13% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Santiago!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Santiago (SEA-SCL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Santiago that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Santiago

Fri, Mar 6 - Mon, Mar 16
Air Canada Logo
8:00 pm - 11:15 am
SEA
-
SCL
58h 15m
2 stops
Air Canada Logo
7:55 pm - 10:16 pm
SCL
-
SEA
30h 21m
1 stop
$897Air Canada
Thu, Feb 19 - Tue, Feb 24
Multiple Airlines Logo
7:55 am - 11:40 pm
SEA
-
SCL
34h 45m
2 stops
Multiple Airlines Logo
11:25 pm - 10:04 pm
SCL
-
SEA
27h 39m
1 stop
$903Multiple Airlines
Wed, Mar 11 - Thu, Mar 19
Multiple Airlines Logo
6:24 pm - 5:35 am
SEA
-
SCL
31h 11m
1 stop
Multiple Airlines Logo
4:25 pm - 10:00 pm
SCL
-
SEA
33h 35m
2 stops
$905Multiple Airlines
Thu, Feb 19 - Tue, Feb 24
Multiple Airlines Logo
9:50 pm - 12:00 pm
SEA
-
SCL
33h 10m
3 stops
Multiple Airlines Logo
11:25 pm - 10:04 pm
SCL
-
SEA
27h 39m
1 stop
$931Multiple Airlines
Fri, Mar 13 - Wed, Mar 18
Multiple Airlines Logo
8:00 pm - 11:15 am
SEA
-
SCL
59h 15m
2 stops
Multiple Airlines Logo
1:35 am - 10:00 pm
SCL
-
SEA
24h 25m
2 stops
$932Multiple Airlines
Tue, Mar 24 - Tue, Mar 31
LATAM Airlines Logo
10:58 pm - 5:55 am
SEA
-
SCL
26h 57m
1 stop
LATAM Airlines Logo
11:55 pm - 7:48 pm
SCL
-
SEA
23h 53m
1 stop
$942LATAM Airlines
Wed, Mar 11 - Thu, Mar 19
Avianca Logo
6:45 am - 7:50 am
SEA
-
SCL
21h 05m
1 stop
Avianca Logo
9:45 pm - 1:07 pm
SCL
-
SEA
19h 22m
1 stop
$943Avianca
Wed, Mar 11 - Thu, Mar 19
Avianca Logo
7:00 am - 7:50 am
SEA
-
SCL
20h 50m
2 stops
Avianca Logo
9:45 pm - 6:04 pm
SCL
-
SEA
24h 19m
2 stops
$947Avianca
Sat, Mar 14 - Sun, Mar 22
LATAM Airlines Logo
7:20 am - 5:55 am
SEA
-
SCL
18h 35m
1 stop
LATAM Airlines Logo
10:30 pm - 7:48 pm
SCL
-
SEA
25h 18m
1 stop
$952LATAM Airlines
Tue, Mar 24 - Tue, Mar 31
Multiple Airlines Logo
8:10 am - 11:15 am
SEA
-
SCL
23h 05m
1 stop
Multiple Airlines Logo
5:30 pm - 9:51 pm
SCL
-
SEA
32h 21m
2 stops
$961Multiple Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Santiago flights

Get data-powered insights and trends into flights from Seattle to Santiago to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Santiago?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Santiago departing in March.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Santiago, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Santiago is January, where tickets cost $1,029 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $1,381 and $1,353 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Santiago, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Santiago, you should book around 6 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight$359
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Seattle to Santiago

When to book flights from Seattle to Santiago

Are your dates flexible? Find out the best times to travel from Seattle to Santiago based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Santiago

  • What is the cheapest flight from Seattle to Santiago?

    In the last 3 days, the lowest price for a flight from Seattle to Santiago was $359 for a one-way ticket and $828 for a round-trip.

  • Do I need a passport to fly between Seattle and Santiago?

    Yes

  • Which airports will I be using when flying from Seattle to Santiago?

    On your way to Santiago, you’ll fly out from Seattle/Tacoma Intl. You’ll be landing at Santiago Arturo Merino Benitez.

  • Which aircraft models fly most regularly from Seattle to Santiago?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Santiago?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Seattle and Santiago, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Santiago, Delta or LATAM Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Santiago are Delta and LATAM Airlines. With an average price for the route of $1,295 and an overall rating of 7.9, Delta is the most popular choice. LATAM Airlines is also a great choice for the route, with an average price of $1,259 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Seattle to Santiago?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Santiago.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Santiago?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santiago from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Santiago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Santiago with an airline and back to Seattle with another airline. Booking your flights between Seattle and SCL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Santiago?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Santiago from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Seattle to Santiago

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Santiago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Santiago? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8039 reviews
7.9Comfort
7.8Entertainment
8.5Crew
7.2Food
8.1Boarding
Airline reviews

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

10.0 ExcellentAnne, Jan 2026
MCO - DTW
Read more Delta reviews

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

I booked a flight through Kayak to Brazil I have traveled to Brazil several times before Kayak Delta or LATAM never mentioned during the booking or in the pre flight process that the visa requirements to visit Brazil have changed earlier this year. I was unaware of this change and as such never got a visa and was unable to fly from JFK to Sao Paulo Add to this that Delta allowed me to fly from Boston to JFK which they should not have as I didn’t have a visa. It has been a terrible experience and a huge loss of money

Good flight, boarding ok and crew very nice. Flight was not full so I was able to be very comfortable. Blanket and pillow provided with was good as it was very cold during the flight . Food was very good(small snack sandwich and an excellent piece of orange cake). Overall good flight, no complaints.

The assistance we received and the flight itself was wonderful. We will fly with LATAM airlines again, in the future.

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

Poor handling of carry on luggage. We had a 8 hour stop in Santiago, are over 70 and, in spite of paying full fare they wanted to send carry on to luggage hold. No empathy. We had to show that several group 4/5 passengers were not sending their carry ons before they finally let Is keep them. Very poor .

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

left on time, reasonable boarding process arrived early luggage came out quickly

I like flying first class, and United has a nice one

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

Check-in, boarding and the flight from Phoenix to Houston was quick and easy. The flight from Houston to Shreveport was delayed 5 hours. It was frustrating but I think United handled it the best they could.

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

It was great with United overall except for two things. 1) It was a 5-hour flight and we were with kids, so we were asking for extra snacks. They were extremely reticent to dole them out even though there wasn't any meal and the kids were starting to hit their limit towards the end. 2) Baggage didn't arrive until 80 minutes after we landed.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

On the plus side, crew was attentive, drinks were cold, and in-flight entertainment selection was better than some other airlines. On the negative aide, Plane was delayed almost an hour, either no announcements from the gate crew. Biscoff cookies are gross, appreciate airlines that give a choice. Also, crew had no personality or enthusiasm at all.

Little warm on the plane and delayed for an hour

Tell the crew (when boarding) to yell at the imbeciles blocking us from walking up to scan. I promise everyone crowds around and half of us (most the time I’m group 4) have to push our way through. Your staff is awesome, the public - not so much-

Bags took over and hour to come out. Delays due to wind caused rebooking.

The flight was good. We had to spend almost an hour on the tarmac when we arrived in Dallas. Waiting for a gate. What’s the point of arriving early if you have no gate to park at?

Lower WiFi prices; allow us to see our flight on a map; more variety of drink choices.

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

UGH I HAD TO MISS MY FIRST FLIGHT TO TAMPA CAUSE OF THE 10 MINUTE DELAY OF THE ORLANDO TO MIAMI ONE SO THEY HAD ME GET ANOTHER TICKET. I AM NOT HAPPY AT ALL BECAUSE IT MADE ME MISS MY CONNECTING FLIGHT FROM TAMPA TO LONDON AND FORCED ME TO MISS A DAY AT MY ROOM IN THE UK.

Wish they didnt delay off-boarding for 10 minutes so i could connect to my flight from miami to tampa

We experienced gate changes and a long delay. My seat was dirty when I boarded and I had to use wipes to clean it myself. There was an unpleasant and overpowering cleaning product scent on the plane as well that lingered through the flight.

Everything you need to know for your flight from Seattle to Santiago

Information on your arrival and departure airports