$423+ Cheap flights from Seattle (SEA) to Buenos Aires (BUE)
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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUE
Jul 3 — Jul 101
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Buenos Aires 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
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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 Buenos Aires
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Cheapest flights from Seattle to Buenos AiresExplore the most affordable flight options available from Seattle to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 3, 2026.
Explore the most affordable flight options available from Seattle to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 3, 2026.
This BusinessClass deal was found by Cheapflights users on 5/29. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:08 pm
SEA
- EZE
2 stops33h 12m
GOL
Sun 11/223:15 am
EZE
- SEA
2 stops25h 25m
GOL
Deal found 5/29![GOL logo]()
$1,067
This Mytrip deal was found by Cheapflights users on 6/1. 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.
Mon 7/611:00 pm
SEA
- EZE
3 stops32h 30m
Multiple Airlines
Tue 7/141:10 pm
EZE
- SEA
3 stops34h 49m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,112
This BusinessClass deal was found by Cheapflights users on 5/29. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:08 pm
SEA
- EZE
2 stops33h 12m
GOL
Mon 11/233:15 am
EZE
- SEA
2 stops25h 25m
GOL
Deal found 5/29![GOL logo]()
$1,142
This BusinessClass deal was found by Cheapflights users on 5/29. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:08 pm
SEA
- EZE
2 stops33h 12m
GOL
Wed 12/23:15 am
EZE
- SEA
2 stops25h 01m
GOL
Deal found 5/29![GOL logo]()
$1,147
This Mytrip deal was found by Cheapflights users on 5/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:10 pm
SEA
- EZE
3 stops31h 50m
Multiple Airlines
Tue 11/2411:00 am
EZE
- SEA
3 stops37h 15m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,157
This LATAM Airlines deal was found by Cheapflights users on 5/30. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:05 am
SEA
- EZE
1 stop21h 35m
LATAM Airlines
Wed 9/167:21 pm
EZE
- SEA
2 stops21h 09m
LATAM Airlines
Deal found 5/30![LATAM Airlines logo]()
$1,169
This Kiwi.com deal was found by Cheapflights users on 5/30. 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.
Mon 9/2811:06 am
SEA
- EZE
2 stops40h 51m
Multiple Airlines
Wed 10/288:00 am
EZE
- SEA
1 stop17h 54m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,179
This BusinessClass deal was found by Cheapflights users on 5/29. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:08 pm
SEA
- EZE
2 stops33h 12m
GOL
Wed 12/23:15 am
EZE
- SEA
2 stops25h 01m
GOL
Deal found 5/29![GOL logo]()
$1,183
This Kiwi.com deal was found by Cheapflights users on 5/30. 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.
Mon 9/2811:06 am
SEA
- EZE
2 stops40h 51m
Multiple Airlines
Mon 10/268:00 am
EZE
- SEA
1 stop17h 54m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,201
This Kiwi.com deal was found by Cheapflights users on 5/30. 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.
Tue 9/292:15 pm
SEA
- EZE
2 stops37h 42m
Multiple Airlines
Wed 10/218:00 am
EZE
- SEA
1 stop17h 54m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,204
This Kiwi.com deal was found by Cheapflights users on 6/2. 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.
Mon 8/178:12 am
SEA
- EZE
2 stops39h 33m
Multiple Airlines
Mon 8/2410:45 pm
EZE
- SEA
1 stop27h 15m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$1,205
This Kiwi.com deal was found by Cheapflights users on 5/29. 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 6/129:18 pm
SEA
- EZE
2 stops32h 22m
Multiple Airlines
Mon 6/151:10 pm
EZE
- SEA
1 stop36h 50m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,210
Best flights from Seattle to Buenos AiresDiscover carefully curated flight deals from Seattle to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 3, 2026.
Discover carefully curated flight deals from Seattle to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 3, 2026.
This LATAM Airlines deal was found by Cheapflights users on 5/31. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:25 am
SEA
- EZE
1 stop21h 15m
LATAM Airlines
Wed 10/287:21 pm
EZE
- SEA
2 stops23h 26m
LATAM Airlines
Deal found 5/31![LATAM Airlines logo]()
$1,224
This Delta deal was found by Cheapflights users on 5/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:59 pm
SEA
- EZE
2 stops26h 11m
Delta
Thu 10/297:45 am
EZE
- SEA
2 stops35h 05m
Delta
Deal found 5/30![Delta logo]()
$1,280
This United Airlines deal was found by Cheapflights users on 6/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:00 am
SEA
- EZE
1 stop23h 00m
United Airlines
Mon 8/109:00 pm
EZE
- SEA
2 stops21h 24m
United Airlines
Deal found 6/2![United Airlines logo]()
$1,280
This Delta deal was found by Cheapflights users on 5/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:09 am
SEA
- EZE
1 stop21h 31m
Delta
Tue 8/48:10 pm
EZE
- SEA
1 stop17h 39m
Delta
Deal found 5/30![Delta logo]()
$1,280
This United Airlines deal was found by Cheapflights users on 6/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:05 am
SEA
- EZE
1 stop20h 55m
United Airlines
Thu 7/309:00 pm
EZE
- SEA
1 stop19h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$1,280
This KAYAK deal was found by Cheapflights users on 5/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:00 am
SEA
- AEP
2 stops21h 40m
LATAM Airlines
Wed 10/283:40 pm
AEP
- SEA
2 stops24h 43m
LATAM Airlines
Deal found 5/31![LATAM Airlines logo]()
$1,280
This KAYAK deal was found by Cheapflights users on 5/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:15 am
SEA
- AEP
2 stops27h 35m
LATAM Airlines
Tue 7/78:05 pm
AEP
- SEA
2 stops22h 45m
LATAM Airlines
Deal found 5/31![LATAM Airlines logo]()
$1,280
This United Airlines deal was found by Cheapflights users on 6/1. 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.
Tue 8/411:11 pm
SEA
- EZE
2 stops28h 49m
United Airlines
Thu 8/139:00 pm
EZE
- SEA
2 stops18h 44m
United Airlines
Deal found 6/1![United Airlines logo]()
$1,284
This LATAM Airlines deal was found by Cheapflights users on 6/3. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:20 am
SEA
- AEP
2 stops20h 20m
LATAM Airlines
Thu 10/293:40 pm
AEP
- SEA
2 stops27h 07m
LATAM Airlines
Deal found 6/3![LATAM Airlines logo]()
$1,280
This United Airlines deal was found by Cheapflights users on 6/1. 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.
Wed 11/117:03 am
SEA
- EZE
1 stop21h 17m
United Airlines
Wed 11/2510:05 pm
EZE
- SEA
2 stops21h 13m
United Airlines
Deal found 6/1![United Airlines logo]()
$1,314
This Cheapflightsfares deal was found by Cheapflights users on 6/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:15 am
SEA
- AEP
2 stops27h 35m
LATAM Airlines
Wed 7/83:45 pm
AEP
- SEA
2 stops24h 45m
LATAM Airlines
Deal found 6/1![LATAM Airlines logo]()
$1,297
This United Airlines deal was found by Cheapflights users on 5/31. 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.
Sun 11/152:00 pm
SEA
- EZE
1 stop36h 20m
United Airlines
Wed 12/1611:55 pm
EZE
- SEA
1 stop24h 17m
United Airlines
Deal found 5/31![United Airlines logo]()
$1,330
This Cheapflightsfares deal was found by Cheapflights users on 5/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:15 am
SEA
- AEP
2 stops27h 35m
LATAM Airlines
Tue 8/43:45 pm
AEP
- SEA
2 stops34h 20m
LATAM Airlines
Deal found 5/30![LATAM Airlines logo]()
$1,297
This United Airlines deal was found by Cheapflights users on 6/1. 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.
Wed 7/158:35 am
SEA
- EZE
2 stops19h 25m
United Airlines
Wed 7/229:00 pm
EZE
- SEA
2 stops30h 10m
United Airlines
Deal found 6/1![United Airlines logo]()
$1,348
This Expedia deal was found by Cheapflights users on 5/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:00 am
SEA
- AEP
2 stops22h 30m
LATAM Airlines
Thu 8/203:45 pm
AEP
- SEA
2 stops34h 20m
LATAM Airlines
Deal found 5/29![LATAM Airlines logo]()
$1,311
This LATAM Airlines deal was found by Cheapflights users on 5/31. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:59 am
SEA
- EZE
2 stops21h 31m
LATAM Airlines
Sat 10/317:21 pm
EZE
- SEA
2 stops24h 26m
LATAM Airlines
Deal found 5/31![LATAM Airlines logo]()
$1,334
This KAYAK deal was found by Cheapflights users on 6/2. 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.
Wed 11/48:25 am
SEA
- AEP
2 stops24h 35m
LATAM Airlines
Tue 11/248:05 pm
AEP
- SEA
2 stops21h 55m
LATAM Airlines
Deal found 6/2![LATAM Airlines logo]()
$1,348
This KAYAK deal was found by Cheapflights users on 6/2. 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.
Sat 10/311:45 pm
SEA
- AEP
2 stops22h 15m
LATAM Airlines
Wed 11/113:40 pm
AEP
- SEA
2 stops26h 20m
LATAM Airlines
Deal found 6/2![LATAM Airlines logo]()
$1,364
This KAYAK deal was found by Cheapflights users on 6/2. 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.
Sat 8/226:00 am
SEA
- AEP
2 stops21h 40m
LATAM Airlines
Mon 8/313:45 pm
AEP
- SEA
2 stops24h 42m
LATAM Airlines
Deal found 6/2![LATAM Airlines logo]()
$1,364
Last-minute flights from Seattle to Buenos AiresDiscover last-minute flight deals from Seattle to Buenos Aires. Data last updated June 3, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Buenos Aires. Data last updated June 3, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/29. 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 6/129:18 pm
SEA
- EZE
2 stops32h 22m
Multiple Airlines
Mon 6/151:10 pm
EZE
- SEA
1 stop36h 50m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,210
This KAYAK deal was found by Cheapflights users on 6/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3011:55 am
SEA
- EZE
1 stop16h 05m
Multiple Airlines
Tue 7/79:00 pm
EZE
- SEA
1 stop26h 12m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,212
This KAYAK deal was found by Cheapflights users on 6/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/308:45 am
SEA
- EZE
2 stops19h 15m
Copa Airlines
Tue 7/79:00 pm
EZE
- SEA
2 stops20h 21m
Copa Airlines
Deal found 6/1![Copa Airlines logo]()
$1,217
This LATAM Airlines deal was found by Cheapflights users on 5/30. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/308:25 am
SEA
- EZE
1 stop21h 15m
LATAM Airlines
Tue 7/78:30 pm
EZE
- SEA
2 stops22h 20m
LATAM Airlines
Deal found 5/30![LATAM Airlines logo]()
$1,224
This KAYAK deal was found by Cheapflights users on 5/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:15 am
SEA
- AEP
2 stops27h 35m
LATAM Airlines
Tue 7/78:05 pm
AEP
- SEA
2 stops22h 45m
LATAM Airlines
Deal found 5/31![LATAM Airlines logo]()
$1,280
This Mytrip deal was found by Cheapflights users on 6/1. 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.
Mon 7/611:00 pm
SEA
- EZE
3 stops32h 30m
Multiple Airlines
Tue 7/141:10 pm
EZE
- SEA
3 stops34h 49m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,112
This KAYAK deal was found by Cheapflights users on 6/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:56 am
SEA
- EZE
2 stops19h 04m
Multiple Airlines
Tue 7/149:00 pm
EZE
- SEA
1 stop17h 47m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,216
This SmartFares deal was found by Cheapflights users on 6/1. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:03 am
SEA
- AEP
2 stops22h 27m
Multiple Airlines
Tue 7/1410:30 pm
AEP
- SEA
2 stops42h 00m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,345
This Kiwi.com deal was found by Cheapflights users on 5/29. 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 7/87:06 pm
SEA
- EZE
2 stops20h 09m
Multiple Airlines
Tue 7/148:00 am
EZE
- SEA
1 stop18h 00m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,232
This LATAM Airlines deal was found by Cheapflights users on 5/31. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1311:59 am
SEA
- EZE
1 stop17h 46m
LATAM Airlines
Mon 7/277:21 pm
EZE
- SEA
2 stops21h 09m
LATAM Airlines
Deal found 5/31![LATAM Airlines logo]()
$1,268
This BusinessClass deal was found by Cheapflights users on 6/2. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/157:05 am
SEA
- EZE
1 stop20h 55m
Avianca
Tue 7/219:00 pm
EZE
- SEA
2 stops26h 06m
Avianca
Deal found 6/2![Avianca logo]()
$1,219
This Kiwi.com deal was found by Cheapflights users on 5/30. 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.
Thu 7/167:06 pm
SEA
- EZE
2 stops20h 09m
Multiple Airlines
Wed 8/58:00 am
EZE
- SEA
1 stop18h 00m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,254
One-way flights from Seattle to Buenos AiresSearch for one-way flight options from Seattle to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated June 3, 2026.
Search for one-way flight options from Seattle to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated June 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 6/812:35 pm
SEA
- EZE
3 stops58h 10m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 6/812:35 pm
SEA
- AEP
3 stops47h 25m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 6/1011:00 pm
SEA
- AEP
3 stops49h 05m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$438
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 6/137:41 pm
SEA
- AEP
3 stops52h 39m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 5/31. 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.
Thu 8/2011:03 am
SEA
- EZE
2 stops40h 54m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 6/1111:00 pm
SEA
- AEP
3 stops49h 20m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$448
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 6/1011:00 pm
SEA
- EZE
3 stops47h 45m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$451
This Kiwi.com deal was found by Cheapflights users on 5/31. 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.
Tue 8/257:14 am
SEA
- AEP
3 stops41h 06m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$455
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 6/1411:00 pm
SEA
- AEP
3 stops49h 20m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$456
This Kiwi.com deal was found by Cheapflights users on 5/30. 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.
Tue 8/1110:34 am
SEA
- EZE
2 stops41h 23m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$458
This Kiwi.com deal was found by Cheapflights users on 5/31. 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.
Wed 8/197:08 am
SEA
- EZE
3 stops44h 49m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$474
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 6/1111:00 pm
SEA
- EZE
3 stops47h 45m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$478
Find flight deals from Seattle to Buenos Aires
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Buenos Aires (BUE). 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 June 3, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $1,067 (BusinessClass) |
One-way from | $423 (Kiwi.com) |
Popular in | May |
Cheapest in | March |
Average price | $1,307 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Buenos Aires 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 June 3, 2026.
Use the filters below to find and compare flights from Seattle to Buenos Aires that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleBuenos Aires
SEA - EZE
SEAEZE
Seattle/Tacoma Intl
Thu 10/22
8:25 am-9:40 am
1 stop21h 15m
Buenos Aires Ministro Pistarini
Wed 10/28
7:21 pm-2:47 pm
2 stops23h 26m
$1,224
SeattleBuenos Aires
SEA - EZE
SEAEZE
Seattle/Tacoma Intl
Tue 9/29
11:59 pm-6:10 am
2 stops26h 11m
Buenos Aires Ministro Pistarini
Thu 10/29
7:45 am-2:50 pm
2 stops35h 05m
$1,280
SeattleBuenos Aires
SEA - EZE
SEAEZE
Seattle/Tacoma Intl
Wed 8/5
5:00 am-8:00 am
1 stop23h 00m
Buenos Aires Ministro Pistarini
Mon 8/10
9:00 pm-2:24 pm
2 stops21h 24m
$1,280
Quickest round-trip
SeattleBuenos Aires
SEA - EZE
SEAEZE
Seattle/Tacoma Intl
Wed 7/15
8:09 am-9:40 am
1 stop21h 31m
Buenos Aires Ministro Pistarini
Tue 8/4
8:10 pm-9:49 am
1 stop17h 39m
$1,280
SeattleBuenos Aires
SEA - EZE
SEAEZE
Seattle/Tacoma Intl
Wed 7/22
7:05 am-8:00 am
1 stop20h 55m
Buenos Aires Ministro Pistarini
Thu 7/30
9:00 pm-12:47 pm
1 stop19h 47m
$1,280
SeattleBuenos Aires
SEA - AEP
SEAAEP
Seattle/Tacoma Intl
Thu 10/22
6:00 am-7:40 am
2 stops21h 40m
Buenos Aires Jorge Newbery
Wed 10/28
3:40 pm-12:23 pm
2 stops24h 43m
$1,280
SeattleBuenos Aires
SEA - AEP
SEAAEP
Seattle/Tacoma Intl
Tue 6/30
7:15 am-2:50 pm
2 stops27h 35m
Buenos Aires Jorge Newbery
Tue 7/7
8:05 pm-2:50 pm
2 stops22h 45m
$1,280
SeattleBuenos Aires
SEA - AEP
SEAAEP
Seattle/Tacoma Intl
Mon 10/5
7:20 am-7:40 am
2 stops20h 20m
Buenos Aires Jorge Newbery
Thu 10/29
3:40 pm-2:47 pm
2 stops27h 07m
$1,280
SeattleBuenos Aires
SEA - EZE
SEAEZE
Seattle/Tacoma Intl
Tue 8/4
11:11 pm-8:00 am
2 stops28h 49m
Buenos Aires Ministro Pistarini
Thu 8/13
9:00 pm-11:44 am
2 stops18h 44m
$1,284
SeattleBuenos Aires
SEA - AEP
SEAAEP
Seattle/Tacoma Intl
Wed 7/1
7:15 am-2:50 pm
2 stops27h 35m
Buenos Aires Jorge Newbery
Wed 7/8
3:45 pm-12:30 pm
2 stops24h 45m
$1,297
Showing 1-10 of 38 resultsSorted by cheapest first
Compare providers for flights from Seattle to Buenos Aires
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 Buenos Aires in June.
| 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 |
- Most accurate provider: When it comes to deals on Seattle-Buenos Aires flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Seattle-Buenos Aires flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Seattle-Buenos Aires flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Buenos Aires 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-Buenos Aires 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 Buenos Aires
Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Seattle with our price prediction graph.
SEA-BUE
SEA-EZE
SEA-AEP
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 Buenos Aires
SEA-BUE
SEA-EZE
SEA-AEP
What is the cheapest month to book a flight from Seattle to Buenos Aires?
Currently, August is the cheapest month in which you can book a flight from Seattle to Buenos Aires (average of $157). Flying from Seattle to Buenos Aires in May is currently the most expensive (average of $1,506). 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 Buenos Aires?
How often are flights from Seattle to Buenos Aires delayed?
About 100% of weekly flights between Seattle and Buenos Aires have experienced delays in the past year, with the average delay time being 99 minutes.
What is the most punctual flight time for Seattle to Buenos Aires flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
How far ahead should I book a flight from Seattle to Buenos Aires?
Booking 1 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Buenos Aires. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Buenos Aires
Get insights into the airlines that provide service to Buenos Aires. 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 Buenos Aires. Reviews last updated June 3, 2026.
Read reviews from past customers who have flown Delta,LATAM Airlines, andUnited Airlines from Seattle to Buenos Aires. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
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 Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
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Complete your trip
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Alternative routes for Seattle to Buenos Aires
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Other flights to Buenos Aires
Explore flights to Buenos Aires departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 3, 2026.
Complete your trip
Complete your trip to Buenos Aires by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Buenos Aires by cabin class
Find flights from Seattle to Buenos Aires, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Buenos Aires flights
Browse other Seattle and Buenos Aires flight options. Last updated on June 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 June 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Seattle to Buenos Aires
Discover the top 3 airlines that operate flights from Seattle to Buenos Aires. 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 June 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$696 | Average$1,286 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$964 | Average$1,375 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,126 | Average$1,376 | FlexibilityNo cancel fee | On-time71% |