$334+ Cheap flights from Seattle (SEA) to Santiago (SCL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SCL
May 3 — May 101
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Seattle to Santiago with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Santiago
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to SantiagoExplore the most affordable flight options available from Seattle to Santiago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 3, 2026.
Explore the most affordable flight options available from Seattle to Santiago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 3, 2026.
This Booking.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:35 am
SEA
- SCL
2 stops38h 15m
Air Canada
Tue 12/17:25 am
SCL
- SEA
2 stops40h 01m
Air Canada
Deal found 3/30![Air Canada logo]()
$904
This Air Canada deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/88:10 am
SEA
- SCL
1 stop22h 05m
Air Canada
Thu 11/197:55 pm
SCL
- SEA
1 stop31h 21m
Air Canada
Deal found 3/31![Air Canada logo]()
$909
This Air Canada deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:10 am
SEA
- SCL
1 stop22h 05m
Air Canada
Tue 11/177:55 pm
SCL
- SEA
2 stops27h 31m
Air Canada
Deal found 3/31![Air Canada logo]()
$914
This KAYAK deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:35 am
SEA
- SCL
2 stops19h 40m
Multiple Airlines
Tue 12/17:25 am
SCL
- SEA
2 stops36h 06m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$930
This BusinessClass deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:05 pm
SEA
- SCL
2 stops35h 10m
Multiple Airlines
Tue 11/177:55 pm
SCL
- SEA
1 stop31h 21m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$934
This Air Canada deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:45 am
SEA
- SCL
2 stops24h 30m
Air Canada
Mon 11/167:55 pm
SCL
- SEA
2 stops42h 56m
Air Canada
Deal found 3/31![Air Canada logo]()
$944
This Air Canada deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/158:10 am
SEA
- SCL
1 stop22h 05m
Air Canada
Tue 11/177:55 pm
SCL
- SEA
2 stops27h 31m
Air Canada
Deal found 4/1![Air Canada logo]()
$945
This LATAM Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:15 am
SEA
- SCL
1 stop16h 20m
LATAM Airlines
Mon 5/1810:55 pm
SCL
- SEA
1 stop18h 35m
LATAM Airlines
Deal found 4/2![LATAM Airlines logo]()
$957
This Air Canada deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:05 pm
SEA
- SCL
2 stops35h 10m
Air Canada
Sat 11/217:55 pm
SCL
- SEA
1 stop31h 21m
Air Canada
Deal found 4/1![Air Canada logo]()
$973
This Air Canada deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:05 pm
SEA
- SCL
2 stops33h 45m
Air Canada
Sat 12/197:55 pm
SCL
- SEA
1 stop31h 21m
Air Canada
Deal found 3/31![Air Canada logo]()
$976
Best flights from Seattle to SantiagoDiscover carefully curated flight deals from Seattle to Santiago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 3, 2026.
Discover carefully curated flight deals from Seattle to Santiago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 3, 2026.
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:30 am
SEA
- SCL
2 stops37h 13m
United Airlines
Mon 5/412:01 am
SCL
- SEA
2 stops22h 43m
United Airlines
Deal found 3/30![United Airlines logo]()
$988
This KAYAK deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:00 am
SEA
- SCL
2 stops21h 00m
LATAM Airlines
Wed 5/1311:05 pm
SCL
- SEA
2 stops27h 54m
LATAM Airlines
Deal found 4/2![LATAM Airlines logo]()
$1,017
This Delta deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:00 am
SEA
- SCL
2 stops21h 25m
Delta
Thu 5/77:55 pm
SCL
- SEA
2 stops21h 29m
Delta
Deal found 4/2![Delta logo]()
$1,030
This Kiwi.com deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:45 am
SEA
- SCL
1 stop20h 40m
Multiple Airlines
Tue 5/265:00 am
SCL
- SEA
2 stops43h 49m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$1,137
This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:00 am
SEA
- SCL
2 stops19h 10m
United Airlines
Tue 5/1212:38 am
SCL
- SEA
2 stops22h 06m
United Airlines
Deal found 3/31![United Airlines logo]()
$988
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:30 am
SEA
- SCL
2 stops17h 30m
United Airlines
Tue 5/512:01 am
SCL
- SEA
2 stops25h 51m
United Airlines
Deal found 3/30![United Airlines logo]()
$988
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:45 am
SEA
- SCL
2 stops18h 10m
Delta
Wed 7/2211:00 pm
SCL
- SEA
2 stops20h 46m
Delta
Deal found 4/1![Delta logo]()
$1,175
This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:00 am
SEA
- SCL
2 stops17h 00m
United Airlines
Sun 5/172:22 am
SCL
- SEA
2 stops23h 30m
United Airlines
Deal found 3/31![United Airlines logo]()
$988
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/211:52 pm
SEA
- SCL
2 stops20h 34m
United Airlines
Mon 8/1012:06 am
SCL
- SEA
2 stops24h 15m
United Airlines
Deal found 3/29![United Airlines logo]()
$1,178
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:49 pm
SEA
- SCL
2 stops20h 37m
United Airlines
Mon 8/1012:06 am
SCL
- SEA
2 stops24h 15m
United Airlines
Deal found 3/29![United Airlines logo]()
$1,178
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2311:56 pm
SEA
- SCL
2 stops19h 47m
United Airlines
Mon 9/71:43 am
SCL
- SEA
2 stops23h 38m
United Airlines
Deal found 4/1![United Airlines logo]()
$1,178
Last-minute flights from Seattle to SantiagoDiscover last-minute flight deals from Seattle to Santiago. Data last updated April 3, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Santiago. Data last updated April 3, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2810:40 pm
SEA
- SCL
1 stop28h 45m
LATAM Airlines
Tue 5/510:55 pm
SCL
- SEA
1 stop18h 47m
LATAM Airlines
Deal found 3/30![LATAM Airlines logo]()
$949
This Mytrip deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:35 pm
SEA
- SCL
3 stops31h 00m
Multiple Airlines
Tue 5/53:20 pm
SCL
- SEA
3 stops30h 25m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$982
This FlightHub deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:20 am
SEA
- SCL
1 stop20h 05m
LATAM Airlines
Wed 5/610:55 pm
SCL
- SEA
1 stop18h 35m
LATAM Airlines
Deal found 3/30![LATAM Airlines logo]()
$934
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:30 am
SEA
- SCL
2 stops17h 30m
United Airlines
Tue 5/512:01 am
SCL
- SEA
2 stops25h 51m
United Airlines
Deal found 3/30![United Airlines logo]()
$988
This FlightHub deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:20 am
SEA
- SCL
1 stop20h 05m
LATAM Airlines
Wed 5/1311:25 pm
SCL
- SEA
1 stop18h 40m
LATAM Airlines
Deal found 3/31![LATAM Airlines logo]()
$989
This LATAM Airlines deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:15 am
SEA
- SCL
1 stop16h 20m
LATAM Airlines
Mon 5/1810:55 pm
SCL
- SEA
1 stop18h 35m
LATAM Airlines
Deal found 4/2![LATAM Airlines logo]()
$957
One-way flights from Seattle to SantiagoSearch for one-way flight options from Seattle to Santiago. Find affordable one-way fares based on user searches. Data last updated April 3, 2026.
Search for one-way flight options from Seattle to Santiago. Find affordable one-way fares based on user searches. Data last updated April 3, 2026.
This Trip.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:12 pm
SEA
- SCL
3 stops29h 43m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/811:37 am
SEA
- SCL
3 stops47h 38m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/28:13 pm
SEA
- SCL
3 stops51h 22m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:12 pm
SEA
- SCL
3 stops28h 48m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/410:30 am
SEA
- SCL
3 stops33h 25m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:30 pm
SEA
- SCL
2 stops25h 05m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:55 am
SEA
- SCL
2 stops39h 40m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/13:19 pm
SEA
- SCL
3 stops33h 36m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$496
Find flight deals from Seattle to Santiago
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Santiago (SCL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $934 (FlightHub) |
One-way from | $334 (Trip.com) |
Popular in | May |
Cheapest in | January |
Average price | $1,269 |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 3, 2026.
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
Cheapest round-trip
SeattleSantiago
SEA - SCL
SEASCL
Seattle/Tacoma Intl
Tue 4/28
6:30 am-10:43 pm
2 stops37h 13m
Santiago Arturo Merino Benitez
Mon 5/4
12:01 am-7:44 pm
2 stops22h 43m
$988
SeattleSantiago
SEA - SCL
SEASCL
Seattle/Tacoma Intl
Tue 5/5
7:00 am-5:10 am
2 stops19h 10m
Santiago Arturo Merino Benitez
Tue 5/12
12:38 am-7:44 pm
2 stops22h 06m
$988
SeattleSantiago
SEA - SCL
SEASCL
Seattle/Tacoma Intl
Wed 4/29
6:30 am-3:00 am
2 stops17h 30m
Santiago Arturo Merino Benitez
Tue 5/5
12:01 am-10:52 pm
2 stops25h 51m
$988
SeattleSantiago
SEA - SCL
SEASCL
Seattle/Tacoma Intl
Tue 5/5
7:00 am-3:00 am
2 stops17h 00m
Santiago Arturo Merino Benitez
Sun 5/17
2:22 am-10:52 pm
2 stops23h 30m
$988
SeattleSantiago
SEA - SCL
SEASCL
Seattle/Tacoma Intl
Tue 5/5
6:00 am-6:00 am
2 stops21h 00m
Santiago Arturo Merino Benitez
Wed 5/13
11:05 pm-11:59 pm
2 stops27h 54m
$1,017
SeattleSantiago
SEA - SCL
SEASCL
Seattle/Tacoma Intl
Thu 4/30
6:00 am-6:25 am
2 stops21h 25m
Santiago Arturo Merino Benitez
Thu 5/7
7:55 pm-2:24 pm
2 stops21h 29m
$1,030
SeattleSantiago
SEA - SCL
SEASCL
Seattle/Tacoma Intl
Wed 5/20
6:45 am-6:25 am
1 stop20h 40m
Santiago Arturo Merino Benitez
Tue 5/26
5:00 am-9:49 pm
2 stops43h 49m
$1,137
Quickest round-trip
SeattleSantiago
SEA - SCL
SEASCL
Seattle/Tacoma Intl
Mon 6/22
9:45 am-6:55 am
2 stops18h 10m
Santiago Arturo Merino Benitez
Wed 7/22
11:00 pm-4:46 pm
2 stops20h 46m
$1,175
SeattleSantiago
SEA - SCL
SEASCL
Seattle/Tacoma Intl
Sun 8/2
11:52 pm-11:26 pm
2 stops20h 34m
Santiago Arturo Merino Benitez
Mon 8/10
12:06 am-9:21 pm
2 stops24h 15m
$1,178
SeattleSantiago
SEA - SCL
SEASCL
Seattle/Tacoma Intl
Mon 8/3
11:49 pm-11:26 pm
2 stops20h 37m
Santiago Arturo Merino Benitez
Mon 8/10
12:06 am-9:21 pm
2 stops24h 15m
$1,178
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Seattle to Santiago
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Santiago in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Santiago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Santiago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Santiago flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Santiago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Santiago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Santiago
Have a flexible travel schedule? Discover the best time to fly to Santiago from Seattle with our price prediction graph.
SEA-SCL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Santiago
How far ahead should I book a flight from Seattle to Santiago?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to Santiago. Price data was last updated on April 2, 2026.
The best time to book flights from Seattle to Santiago is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Seattle to Santiago?
Currently, January is the cheapest month in which you can book a flight from Seattle to Santiago (average of $496). Flying from Seattle to Santiago in May is currently the most expensive (average of $1,018). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Seattle to Santiago?
Reviews of airlines servicing Santiago
Get insights into the airlines that provide service to Santiago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Santiago. Reviews last updated April 3, 2026.
See what other customers who have flown with Delta,LATAM Airlines, andUnited Airlines from Seattle to Santiago have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.9
Boarding
8.1
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.9
Boarding
8.1
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.9
Boarding
8.1
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.9
Boarding
8.1
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.9
Boarding
8.1
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Seattle to Santiago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Seattle
Popular flights
Santiago flight routes
Alternative routes for Seattle to Santiago
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Santiago by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Santiago by cabin class
Find flights from Seattle to Santiago, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Santiago flights
Browse other Seattle and Santiago flight options. Last updated on April 3, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on April 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Santiago
Explore flights to Santiago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 3, 2026.
Top 4 airlines flying from Seattle to Santiago
Discover the top 4 airlines that operate flights from Seattle to Santiago. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$888 | Average$1,165 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$895 | Average$1,279 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$918 | Average$1,247 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,018 | Average$1,128 | FlexibilityNo cancel fee | On-time69% |