$420+ Cheap flights from Seattle (SEA) to Santiago (SCL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SCL
Dec 15 — Dec 221
Round-trip
1 adult, Economy
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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
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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 November 15, 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 November 15, 2026.
This FlightHub deal was found by Cheapflights users on 11/14. 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 12/110:55 pm -
1 stop27h 00m
Wed 12/911:50 pm -
1 stop19h 53m
Deal found 11/14![LATAM Airlines logo]()
$1,137
This Mytrip deal was found by Cheapflights users on 11/11. 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.
Wed 12/24:58 pm -
3 stops32h 52m
Thu 12/179:55 pm -
3 stops29h 12m
Deal found 11/11![Multiple Airlines logo]()
$1,170
This FlightHub deal was found by Cheapflights users on 11/14. 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 11/256:00 am -
1 stop20h 40m
Thu 12/1011:55 pm -
1 stop20h 16m
Deal found 11/14![LATAM Airlines logo]()
$1,180
This Mytrip deal was found by Cheapflights users on 11/13. 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.
Fri 12/411:32 am -
2 stops31h 36m
Mon 12/149:55 pm -
3 stops29h 12m
Deal found 11/13![Multiple Airlines logo]()
$1,185
This Ovago deal was found by Cheapflights users on 11/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:05 am -
1 stop20h 45m
Thu 11/1910:45 pm -
1 stop25h 32m
Deal found 11/12![Multiple Airlines logo]()
$1,218
This KAYAK deal was found by Cheapflights users on 11/14. 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 11/257:05 am -
1 stop20h 45m
Thu 12/1010:45 pm -
2 stops24h 39m
Deal found 11/14![Multiple Airlines logo]()
$1,222
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 November 15, 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 November 15, 2026.
This FlightHub deal was found by Cheapflights users on 11/12. 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.
Fri 1/228:40 am -
2 stops22h 35m
Mon 2/89:55 pm -
2 stops29h 02m
Deal found 11/12![Air Canada logo]()
$1,137
This Justfly.com deal was found by Cheapflights users on 11/14. 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.
Thu 3/118:25 am -
2 stops24h 55m
Mon 3/2211:55 pm -
1 stop17h 05m
Deal found 11/14![LATAM Airlines logo]()
$1,164
This Delta deal was found by Cheapflights users on 11/13. 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.
Sun 1/1711:10 pm -
1 stop26h 45m
Thu 1/288:40 am -
2 stops20h 43m
Deal found 11/13![Delta logo]()
$1,236
This United Airlines deal was found by Cheapflights users on 11/10. 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 12/64:04 pm -
2 stops35h 46m
Tue 12/2910:45 pm -
2 stops43h 50m
Deal found 11/10![United Airlines logo]()
$1,360
This Delta deal was found by Cheapflights users on 11/13. 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.
Sun 1/1711:10 pm -
1 stop26h 45m
Wed 1/278:25 pm -
2 stops23h 14m
Deal found 11/13![Delta logo]()
$1,236
This Delta deal was found by Cheapflights users on 11/13. 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 1/189:44 am -
1 stop14h 51m
Thu 1/2811:00 pm -
1 stop20h 39m
Deal found 11/13![Delta logo]()
$1,236
This Cheapflightsfares deal was found by Cheapflights users on 11/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/48:01 am -
2 stops25h 19m
Sat 3/274:35 pm -
2 stops33h 23m
Deal found 11/14![LATAM Airlines logo]()
$1,392
This United Airlines deal was found by Cheapflights users on 11/14. 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.
Thu 3/115:00 am -
2 stops22h 50m
Mon 3/229:45 pm -
3 stops25h 18m
Deal found 11/14![United Airlines logo]()
$1,415
This Delta deal was found by Cheapflights users on 11/14. 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 1/188:00 am -
1 stop16h 55m
Wed 1/279:50 pm -
1 stop17h 15m
Deal found 11/14![Delta logo]()
$1,236
This Delta deal was found by Cheapflights users on 11/14. 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.
Sun 1/1711:10 pm -
1 stop26h 45m
Mon 1/2511:00 pm -
1 stop18h 38m
Deal found 11/14![Delta logo]()
$1,236
This Delta deal was found by Cheapflights users on 11/13. 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.
Wed 1/2011:45 am -
1 stop14h 55m
Sun 1/249:50 pm -
1 stop21h 49m
Deal found 11/13![Delta logo]()
$1,383
This Delta deal was found by Cheapflights users on 11/14. 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 1/186:00 am -
1 stop20h 40m
Sun 1/2411:00 pm -
1 stop18h 38m
Deal found 11/14![Delta logo]()
$1,393
Last-minute flights from Seattle to SantiagoDiscover last-minute flight deals from Seattle to Santiago. Data last updated November 15, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Santiago. Data last updated November 15, 2026 and is based on user searches.
This Ovago deal was found by Cheapflights users on 11/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:05 am -
1 stop20h 45m
Thu 11/1910:45 pm -
1 stop25h 32m
Deal found 11/12![Multiple Airlines logo]()
$1,218
This FlightHub deal was found by Cheapflights users on 11/14. 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 11/256:00 am -
1 stop20h 40m
Thu 12/1011:55 pm -
1 stop20h 16m
Deal found 11/14![LATAM Airlines logo]()
$1,180
This KAYAK deal was found by Cheapflights users on 11/14. 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 11/257:05 am -
1 stop20h 45m
Thu 12/1010:45 pm -
2 stops24h 39m
Deal found 11/14![Multiple Airlines logo]()
$1,222
This FlightHub deal was found by Cheapflights users on 11/14. 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 12/110:55 pm -
1 stop27h 00m
Wed 12/911:50 pm -
1 stop19h 53m
Deal found 11/14![LATAM Airlines logo]()
$1,137
This Mytrip deal was found by Cheapflights users on 11/11. 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.
Wed 12/24:58 pm -
3 stops32h 52m
Thu 12/179:55 pm -
3 stops29h 12m
Deal found 11/11![Multiple Airlines logo]()
$1,170
This Mytrip deal was found by Cheapflights users on 11/13. 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.
Fri 12/411:32 am -
2 stops31h 36m
Mon 12/149:55 pm -
3 stops29h 12m
Deal found 11/13![Multiple Airlines logo]()
$1,185
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 November 15, 2026.
Search for one-way flight options from Seattle to Santiago. Find affordable one-way fares based on user searches. Data last updated November 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 1/251:33 pm -
3 stops28h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/12![Multiple Airlines logo]()
$420
This Expedia deal was found by Cheapflights users on 11/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/118:40 am -
2 stops22h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Air Canada logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 1/111:24 pm -
3 stops42h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Multiple Airlines logo]()
$452
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 2/84:29 pm -
3 stops47h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Multiple Airlines logo]()
$518
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 2/1011:32 am -
2 stops31h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Multiple Airlines logo]()
$519
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 1/159:20 pm -
2 stops28h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Multiple Airlines logo]()
$530
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 12/44:58 pm -
3 stops49h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/13![Multiple Airlines logo]()
$534
This Kiwi.com deal was found by Cheapflights users on 11/14. 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 2/159:07 pm -
2 stops19h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/14![Multiple Airlines logo]()
$537
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 2/511:32 am -
3 stops49h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Multiple Airlines logo]()
$538
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 November 15, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $1,080 (Air Canada) |
One-way from | $420 (Kiwi.com) |
Popular in | July |
Cheapest in | April |
Average price | $1,354 |
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 7,457,451 searches. Data last updated November 15, 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 Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Mon 1/11
7:45 am-12:15 pm
1 stop23h 30m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$432
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Wed 2/10
11:32 am-12:08 am
2 stops31h 36m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$519
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Fri 1/15
9:20 pm-6:40 am
2 stops28h 20m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$530
Quickest round-trip
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Mon 2/15
9:07 pm-9:15 pm
2 stops19h 08m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$537
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Tue 2/9
8:13 am-12:45 pm
2 stops47h 32m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$541
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Mon 2/8
7:45 am-12:15 pm
1 stop23h 30m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$547
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Mon 12/21
6:25 pm-2:48 am
3 stops27h 23m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$559
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Sat 2/6
4:29 pm-1:03 am
3 stops27h 34m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$575
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Thu 3/11
9:07 pm-6:16 am
3 stops28h 09m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$577
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Mon 1/25
7:45 am-12:15 pm
1 stop23h 30m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$582
Showing 1-10 of 22 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 November.
| 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 Accuracy3 stars | Trust Score*3 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Seattle-Santiago flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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?
The best time to book flights from Seattle to Santiago is 85 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, April is the cheapest month in which you can book a flight from Seattle to Santiago (average of $1,134). Flying from Seattle to Santiago in July is currently the most expensive (average of $1,655). 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?
Airfare is typical for this route at the moment.
Seattle to Santiago flights typically cost between $1,079 and $1,439 in March.The cheapest round-trip price found within the last 5 days was $1,080 on Air Canada (Mar 7-Mar 21).
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 November 15, 2026.
See what other customers who have flown with Delta,LATAM Airlines, andAmerican 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.
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
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Popular flights
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Alternative routes for Seattle to Santiago
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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 November 15, 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 November 15, 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 November 15, 2026.
Top 3 airlines flying from Seattle to Santiago
Discover the top 3 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 7,457,451 searches. Data last updated November 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$849 | Average$1,308 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$895 | Average$1,329 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,004 | Average$1,465 | FlexibilityNo cancel fee | On-time71% |