$399+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SCL
Oct 6 — Oct 131
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 September 6, 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 September 6, 2026.
This KAYAK deal was found by Cheapflights users on 9/2. 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.
Sun 11/297:45 am -
2 stops42h 05m
Sun 12/68:25 am -
2 stops38h 57m
Deal found 9/2![Avianca logo]()
$918
This Air Canada deal was found by Cheapflights users on 9/3. 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.
Mon 12/710:10 am -
2 stops39h 40m
Wed 12/168:25 am -
2 stops35h 12m
Deal found 9/3![Air Canada logo]()
$948
This Mytrip deal was found by Cheapflights users on 9/4. 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 12/17:05 pm -
3 stops30h 33m
Tue 12/88:25 am -
3 stops35h 12m
Deal found 9/4![Multiple Airlines logo]()
$952
This Mytrip deal was found by Cheapflights users on 9/4. 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 12/17:05 pm -
3 stops30h 33m
Mon 12/79:55 pm -
2 stops29h 02m
Deal found 9/4![Multiple Airlines logo]()
$957
This Air Canada deal was found by Cheapflights users on 9/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:45 am -
1 stop23h 30m
Sun 12/68:25 am -
2 stops35h 12m
Deal found 9/2![Air Canada logo]()
$967
This Air Canada deal was found by Cheapflights users on 9/3. 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 12/68:15 am -
2 stops23h 00m
Sun 12/208:25 am -
2 stops41h 34m
Deal found 9/3![Air Canada logo]()
$980
This Air Canada deal was found by Cheapflights users on 8/31. 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.
Mon 12/77:45 am -
1 stop23h 30m
Wed 12/98:25 am -
2 stops38h 57m
Deal found 8/31![Air Canada logo]()
$982
This Trip.com deal was found by Cheapflights users on 9/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:03 am -
2 stops30h 16m
Sat 11/712:15 pm -
2 stops35h 39m
Deal found 9/2![Multiple Airlines logo]()
$991
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 September 6, 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 September 6, 2026.
This Air Canada deal was found by Cheapflights users on 9/4. 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 1/57:05 pm -
2 stops36h 10m
Tue 2/29:55 pm -
1 stop28h 04m
Deal found 9/4![Air Canada logo]()
$1,072
This Delta deal was found by Cheapflights users on 9/1. 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 11/1611:45 am -
2 stops22h 15m
Thu 12/108:40 am -
2 stops20h 21m
Deal found 9/1![Delta logo]()
$1,225
This Copa Airlines deal was found by Cheapflights users on 9/3. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/313:24 pm -
2 stops27h 16m
Sun 1/1012:20 pm -
2 stops38h 36m
Deal found 9/3![Copa Airlines logo]()
$1,449
This Delta deal was found by Cheapflights users on 9/2. 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.
Wed 3/37:15 am -
1 stop18h 40m
Mon 3/2910:55 pm -
1 stop24h 28m
Deal found 9/2![Delta logo]()
$1,225
This Delta deal was found by Cheapflights users on 9/2. 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.
Sat 2/277:20 am -
1 stop17h 15m
Wed 3/3111:25 pm -
1 stop21h 34m
Deal found 9/2![Delta logo]()
$1,325
This Copa Airlines deal was found by Cheapflights users on 9/1. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/156:15 am -
2 stops18h 37m
Wed 1/61:12 am -
2 stops25h 44m
Deal found 9/1![Copa Airlines logo]()
$1,488
This Delta deal was found by Cheapflights users on 9/1. 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 11/167:15 am -
1 stop17h 20m
Fri 12/1111:55 pm -
1 stop17h 47m
Deal found 9/1![Delta logo]()
$1,408
This Delta deal was found by Cheapflights users on 9/1. 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.
Sat 11/1410:12 am -
2 stops23h 48m
Thu 12/108:40 am -
2 stops20h 26m
Deal found 9/1![Delta logo]()
$1,408
This Delta deal was found by Cheapflights users on 9/1. 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.
Thu 12/248:00 am -
1 stop18h 00m
Mon 1/1111:10 pm -
2 stops25h 22m
Deal found 9/1![Delta logo]()
$1,470
Last-minute flights from Seattle to SantiagoDiscover last-minute flight deals from Seattle to Santiago. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Santiago. Data last updated September 6, 2026 and is based on user searches.
This eDestinos deal was found by Cheapflights users on 9/3. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/114:27 pm -
3 stops73h 38m
Sun 9/273:14 am -
2 stops37h 25m
Deal found 9/3![Multiple Airlines logo]()
$1,010
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 10/148:00 pm -
1 stop29h 35m
Thu 10/228:33 pm -
2 stops29h 26m
Deal found 9/5![Multiple Airlines logo]()
$1,011
This Mytrip deal was found by Cheapflights users on 9/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/173:00 pm -
3 stops33h 55m
Sat 11/219:25 am -
3 stops34h 12m
Deal found 9/1![Multiple Airlines logo]()
$1,064
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Tue 10/208:08 am -
2 stops34h 28m
Tue 10/2711:10 pm -
1 stop26h 49m
Deal found 9/5![Multiple Airlines logo]()
$1,032
This Trip.com deal was found by Cheapflights users on 9/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:03 am -
2 stops30h 16m
Sat 11/712:15 pm -
2 stops35h 39m
Deal found 9/2![Multiple Airlines logo]()
$991
This lastminute.com deal was found by Cheapflights users on 9/2. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:30 am -
1 stop31h 45m
Sat 11/711:25 pm -
1 stop25h 30m
Deal found 9/2![Aeromexico logo]()
$1,028
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Mon 10/267:05 pm -
3 stops28h 30m
Tue 11/109:55 pm -
2 stops29h 02m
Deal found 9/3![Multiple Airlines logo]()
$1,035
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 September 6, 2026.
Search for one-way flight options from Seattle to Santiago. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Sat 11/144:27 pm -
3 stops49h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Tue 10/204:27 pm -
3 stops40h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 11/24:27 pm -
3 stops49h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$412
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:27 pm -
3 stops51h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Multiple Airlines logo]()
$420
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 10/59:45 pm -
3 stops49h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Fri 10/24:27 pm -
3 stops40h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$498
This oojo deal was found by Cheapflights users on 9/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/259:30 am -
1 stop30h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Aeromexico logo]()
$515
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 September 6, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $918 (KAYAK) |
One-way from | $399 (Kiwi.com) |
Popular in | July |
Cheapest in | November |
Average price | $1,283 |
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 September 6, 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 10/5
9:45 pm-2:46 am
3 stops49h 01m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$445
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Fri 1/1
7:45 am-12:15 pm
1 stop23h 30m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$527
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Sun 2/14
7:05 pm-12:15 pm
2 stops36h 10m
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
Sun 11/1
8:07 am-5:25 am
2 stops40h 18m
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
Fri 9/18
4:27 pm-2:35 pm
3 stops42h 08m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$684
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Thu 9/10
8:00 am-3:15 pm
2 stops27h 15m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$783
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Mon 1/25
7:50 am-3:00 pm
3 stops26h 10m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$803
Quickest round-trip
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Fri 10/2
8:00 am-6:55 am
1 stop18h 55m
Santiago Arturo Merino Benitez
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$816
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Tue 1/5
7:05 pm-12:15 pm
2 stops36h 10m
Santiago Arturo Merino Benitez
Tue 2/2
9:55 pm-8:59 pm
1 stop28h 04m
$1,072
SeattleSantiago
SEA Seattle/Tacoma Intl - SCL Santiago Arturo Merino Benitez
SEASCL
Seattle/Tacoma Intl
Mon 11/16
11:45 am-3:00 pm
2 stops22h 15m
Santiago Arturo Merino Benitez
Thu 12/10
8:40 am-12:01 am
2 stops20h 21m
$1,225
Showing 1-10 of 17 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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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 37 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, November is the cheapest month in which you can book a flight from Seattle to Santiago (average of $998). Flying from Seattle to Santiago in July is currently the most expensive (average of $1,622). 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 below average for this route at the moment.
Seattle to Santiago flights typically cost between $1,080 and $1,461 in November.The cheapest round-trip price found within the last 5 days was $918 on Avianca (Nov 29-Dec 6).
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 September 6, 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.
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Comfort
7.8
Food
7.2
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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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 September 6, 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 September 6, 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 September 6, 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 7,457,451 searches. Data last updated September 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$855 | Average$1,209 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$895 | Average$1,279 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$918 | Average$1,251 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,018 | Average$1,128 | FlexibilityNo cancel fee | On-time69% |