SCL - SEA

$421 Find Cheap Flights from Santiago to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Santiago to Seattle departing on 1/21. 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

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

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

Cheap Flights from Santiago to Seattle (SCL-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Santiago to Seattle 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 Santiago to Seattle

Mon, Sep 29 - Tue, Oct 7
 Logo
12:25 am - 10:26 pmSCL-SEA
26h 01m2 stops
 Logo
8:30 am - 2:25 pmSEA-SCL
25h 55m2 stops
Tue, Sep 30 - Tue, Oct 7
 Logo
11:00 am - 10:33 pmSCL-SEA
39h 33m1 stop
 Logo
8:30 am - 10:10 pmSEA-SCL
33h 40m2 stops
Tue, Sep 30 - Tue, Oct 7
 Logo
11:30 pm - 10:33 pmSCL-SEA
27h 03m1 stop
 Logo
8:30 am - 10:10 pmSEA-SCL
33h 40m2 stops
Mon, Sep 22 - Sun, Sep 28
LATAM Airlines Logo
11:55 pm - 2:39 pmSCL-SEA
18h 44m1 stop
LATAM Airlines Logo
10:15 am - 6:00 amSEA-SCL
15h 45m1 stop
$908LATAM Airlines
Find Deal
Tue, Oct 14 - Thu, Oct 23
Copa Airlines Logo
12:29 pm - 11:56 amSCL-SEA
27h 27m2 stops
Copa Airlines Logo
6:35 am - 6:00 amSEA-SCL
19h 25m2 stops
$913Copa Airlines
Find Deal
Tue, Sep 30 - Tue, Oct 7
LATAM Airlines Logo
11:05 pm - 2:40 pmSCL-SEA
19h 35m1 stop
LATAM Airlines Logo
7:10 am - 6:00 amSEA-SCL
18h 50m1 stop
$917LATAM Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 30
United Airlines Logo
10:45 pm - 6:10 pmSCL-SEA
24h 25m2 stops
United Airlines Logo
10:00 pm - 8:50 amSEA-SCL
29h 50m2 stops
$941United Airlines
Find Deal
Sun, Sep 14 - Sat, Sep 27
Delta Logo
11:55 pm - 8:16 pmSCL-SEA
24h 21m1 stop
Delta Logo
1:30 pm - 3:00 pmSEA-SCL
21h 30m2 stops
$948Delta
Find Deal
Sun, Sep 14 - Sat, Sep 27
Delta Logo
11:55 pm - 8:16 pmSCL-SEA
24h 21m1 stop
Delta Logo
7:55 pm - 6:00 amSEA-SCL
30h 05m1 stop
$949Delta
Find Deal
Tue, Feb 3 - Thu, Feb 19
Copa Airlines Logo
5:20 am - 10:18 pmSCL-SEA
21h 58m2 stops
Copa Airlines Logo
3:00 pm - 12:32 amSEA-SCL
28h 32m2 stops
$1,023Copa Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Santiago to Seattle flights

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

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

What’s the cheapest day of the week to fly from Santiago to Seattle?

The average price of all round-trip flights from Santiago to Seattle clicked on KAYAK for each day over the last 12 months.

When flying from Santiago to Seattle, you should consider leaving on a Wednesday and avoid Saturdays if you are looking for the best rates. For your return to Santiago, you’ll find the best rates on Tuesdays and the most expensive ones on Saturdays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Santiago to Seattle, 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 Santiago to Seattle is February, where tickets cost $834 (return) on average. On the other hand, the most expensive months are March and April, where the average cost of round-trip tickets is $1,251 and $1,242 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Santiago to Seattle, 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 Santiago to Seattle, you should book around 2 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$421
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Santiago to Seattle

When to book flights from Santiago to Seattle

Are your dates flexible? Find out the best times to travel from Santiago to Seattle 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 Santiago to Seattle

  • What is the cheapest flight from Santiago to Seattle?

    In the last 3 days, the lowest price for a flight from Santiago to Seattle was $421 for a one-way ticket and $785 for a round-trip.

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

    Yes

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

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

  • Which airline alliances offer flights from Santiago to Seattle?

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

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

    The two airlines most popular with KAYAK users for flights from Santiago to Seattle are Delta and LATAM Airlines. With an average price for the route of $1,096 and an overall rating of 8.0, Delta is the most popular choice. LATAM Airlines is also a great choice for the route, with an average price of $1,251 and an overall rating of 7.5.

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

    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 Santiago to Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Santiago 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 Santiago to Seattle?

    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 Seattle with an airline and back to Santiago with another airline. Booking your flights between Santiago and SEA 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 Santiago to Seattle?

    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 Seattle from Santiago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Santiago to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Santiago to Seattle. 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 Santiago to Seattle? 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.
8.0
DeltaOverall score based on 7981 reviews
8.5Crew
7.9Entertainment
7.9Comfort
7.3Food
8.2Boarding
Airline reviews

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

10.0 ExcellentLee, Aug 2025ATL - PHL
Read more Delta reviews

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

Our seats were comfortable with adequate room to stretch out and recline. The food was tasty and served it just the right intervals. Our flight attendant was extra attentive and friendly. Flight arrived early. And the most turbulence. Overall that’s good and experience for an 11 hour flight as can be hoped for

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

There was supposed to be a meal served, but there wasn’t and the major toilet was out of order

They made us board and then deboard due to mechanical issue which delayed the departure by almost 2 hours and we barely made our connecting flight. These quality checks should've been done before boarding not after.

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

Because the flight was late, we lost the connection to Brazil. You, Delta delayed, and you Delta anticipated the door closing in 15 min from Miami to GRU. Why? It caused a lot of stress! I almost could not see my mother in law alive because of your delay.

My entertainment did not work. I was very tired from the botched connection, and the poor sleep

Lost ,y connection due to a mechanical delay, huge line to get new connection and vouchers

It’s a delta flight operated by LATAM. The whole ticket sale is a mess, delta changed my flight but didn’t update it in LATAM system, I couldn’t get my boarding pass, it took me hours to resolve this issue with delta. I had to change my travel plan. No apology from Delta even though it’s their fault.

Boarding was done by woman who insisted on strict standing in line policy; food was ok; entertainment minimal

entertainment was not good; the shoulder strap on Business class seat did not sit well across the body (more like across the neck); the food was not hot and the special meal promoted by insert in the menu was not available to us

The boarding and new bag drop-off process was confusing and causing massive delays.

Wider seats, better seat cushions, (I felt like there was a board I was sitting on). I had the chicken to eat but It neither tasted nor looked like chicken. The fruit was good.

I was in the last row and they sent me to check in my luggage last minute after boarding. I had to go through the crowd.

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

Information on your arrival and departure airports

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