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$484+ Cheap flights from Buenos Aires (BUE) to Seattle (SEA)

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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — SEA
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
1 adult, Economy
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Cheap flight deals from Buenos Aires to Seattle

Cheapest flights from Buenos Aires to Seattle
Explore the most affordable flight options available from Buenos Aires to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Fri 9/111:10 pm
EZE
-
SEA
1 stop36h 44m
Multiple Airlines
Fri 9/188:15 pm
SEA
-
EZE
2 stops55h 42m
Multiple Airlines
Deal found 7/28$1,119
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/1811:25 pm
EZE
-
SEA
1 stop24h 30m
Multiple Airlines
Mon 9/288:15 pm
SEA
-
EZE
2 stops31h 42m
Multiple Airlines
Deal found 7/29$1,135
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/1011:25 pm
EZE
-
SEA
1 stop24h 30m
Multiple Airlines
Thu 9/248:00 am
SEA
-
EZE
2 stops39h 23m
Multiple Airlines
Deal found 7/27$1,136
This FlightHub deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/274:45 pm
EZE
-
SEA
3 stops58h 12m
Air Canada
Wed 3/37:00 pm
SEA
-
EZE
3 stops39h 05m
Air Canada
Deal found 7/30$1,158
This eDestinos deal was found by Cheapflights users on 7/30. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/273:15 pm
EZE
-
SEA
1 stop34h 39m
Multiple Airlines
Mon 10/58:40 am
SEA
-
EZE
3 stops45h 00m
Multiple Airlines
Deal found 7/30$1,172
This Gotogate deal was found by Cheapflights users on 7/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/224:45 pm
EZE
-
SEA
3 stops45h 42m
Air Canada
Sun 1/247:05 pm
SEA
-
EZE
3 stops63h 00m
Air Canada
Deal found 7/28$1,245
This PocketFare deal was found by Cheapflights users on 7/27. 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 PocketFare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:25 pm
EZE
-
SEA
1 stop24h 30m
Aeromexico
Wed 9/29:30 am
SEA
-
EZE
1 stop31h 55m
Aeromexico
Deal found 7/27$1,247
This Gotogate deal was found by Cheapflights users on 7/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/304:45 pm
EZE
-
SEA
3 stops58h 12m
Air Canada
Sun 1/107:05 pm
SEA
-
EZE
3 stops63h 00m
Air Canada
Deal found 7/28$1,248
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 11/228:56 am
EZE
-
SEA
2 stops28h 18m
Multiple Airlines
Sun 1/248:05 am
SEA
-
EZE
1 stop20h 35m
Multiple Airlines
Deal found 7/28$1,271
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/238:05 pm
AEP
-
SEA
2 stops21h 27m
Multiple Airlines
Sat 1/25:45 pm
SEA
-
AEP
2 stops32h 55m
Multiple Airlines
Deal found 7/30$1,430
This LATAM Airlines deal was found by Cheapflights users on 7/29. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:35 pm
AEP
-
SEA
2 stops22h 52m
LATAM Airlines
Mon 9/2811:35 am
SEA
-
AEP
2 stops24h 25m
LATAM Airlines
Deal found 7/29$1,474
This Trip.com deal was found by Cheapflights users on 7/26. 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.
Fri 10/233:45 pm
AEP
-
SEA
2 stops30h 41m
Multiple Airlines
Sat 10/3111:06 am
SEA
-
AEP
2 stops40h 34m
Multiple Airlines
Deal found 7/26$1,488

Find flight deals from Buenos Aires to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Buenos Aires (BUE) to Seattle (SEA). 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 July 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,119
(Kiwi.com)

One-way from

$484
(Kiwi.com)

Popular in

November

Cheapest in

April

Average price

$1,401
Provider with most accurate pricing for Buenos Aires (BUE)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buenos Aires (BUE)-Seattle/Tacoma Intl flights.
Search Deals
From Buenos Aires (BUE) to Seattle/Tacoma Intl
Search Deals
One-way flight from Buenos Aires (BUE) to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buenos Aires to Seattle 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 July 30, 2026.
Use the filters below to find and compare flights from Buenos Aires to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Buenos AiresSeattle

EZE - SEA

EZESEA

Buenos Aires Ministro Pistarini

Mon 9/21

5:25 am-9:51 pm

2 stops20h 26m

Seattle/Tacoma Intl

Sun 9/27

6:43 pm-2:30 am

2 stops27h 47m

$1,371
Quickest round-trip

Buenos AiresSeattle

EZE - SEA

EZESEA

Buenos Aires Ministro Pistarini

Mon 9/21

8:10 pm-1:44 pm

1 stop21h 34m

Seattle/Tacoma Intl

Wed 10/21

6:00 am-9:40 am

2 stops23h 40m

$1,400

Buenos AiresSeattle

EZE - SEA

EZESEA

Buenos Aires Ministro Pistarini

Mon 9/21

9:00 pm-2:52 pm

1 stop21h 52m

Seattle/Tacoma Intl

Sun 9/27

11:13 pm-8:00 am

2 stops28h 47m

$1,413

Buenos AiresSeattle

EZE - SEA

EZESEA

Buenos Aires Ministro Pistarini

Mon 11/30

2:33 pm-9:56 pm

2 stops36h 23m

Seattle/Tacoma Intl

Sun 1/10

6:51 pm-10:30 pm

2 stops22h 39m

$1,422

Buenos AiresSeattle

AEP - SEA

AEPSEA

Buenos Aires Jorge Newbery

Wed 12/23

8:05 pm-12:32 pm

2 stops21h 27m

Seattle/Tacoma Intl

Sat 1/2

5:45 pm-7:40 am

2 stops32h 55m

$1,430

Buenos AiresSeattle

AEP - SEA

AEPSEA

Buenos Aires Jorge Newbery

Fri 11/27

3:50 pm-3:17 pm

2 stops28h 27m

Seattle/Tacoma Intl

Wed 3/3

2:10 pm-4:00 pm

2 stops20h 50m

$1,519

Buenos AiresSeattle

AEP - SEA

AEPSEA

Buenos Aires Jorge Newbery

Fri 9/18

11:55 am-10:47 pm

3 stops38h 52m

Seattle/Tacoma Intl

Mon 9/28

8:00 am-5:20 pm

2 stops29h 20m

$1,534

Buenos AiresSeattle

AEP - SEA

AEPSEA

Buenos Aires Jorge Newbery

Mon 9/21

3:45 pm-9:55 pm

2 stops34h 10m

Seattle/Tacoma Intl

Sun 9/27

9:59 am-7:40 pm

2 stops29h 41m

$1,541

Buenos AiresSeattle

AEP - SEA

AEPSEA

Buenos Aires Jorge Newbery

Mon 11/30

8:05 pm-9:56 pm

2 stops30h 51m

Seattle/Tacoma Intl

Sun 1/10

8:05 am-4:00 pm

2 stops26h 55m

$1,557

Buenos AiresSeattle

AEP - SEA

AEPSEA

Buenos Aires Jorge Newbery

Fri 8/28

3:45 pm-12:27 pm

2 stops24h 42m

Seattle/Tacoma Intl

Sun 9/13

2:30 pm-4:00 pm

2 stops21h 30m

$1,655

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 30 resultsSorted by cheapest first
1
2
3
  • Most accurate provider: When it comes to deals on Buenos Aires-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buenos Aires-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buenos Aires-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buenos Aires-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buenos Aires-Seattle 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 Buenos Aires to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Buenos Aires with our price prediction graph.
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 Buenos Aires to Seattle

What is the cheapest month to book a flight from Buenos Aires to Seattle?

Currently, March is the cheapest month in which you can book a flight from Buenos Aires to Seattle (average of $1,041). Flying from Buenos Aires to Seattle in May is currently the most expensive (average of $1,566). 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 Buenos Aires to Seattle?

Airfare is below average for this route at the moment.
Buenos Aires to Seattle flights typically cost between $1,226 and $1,485 in September.
The cheapest round-trip price found within the last 5 days was $1,119 on Multiple Airlines (Sep 11-Sep 18).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated July 30, 2026.
Peruse reviews from past customers who have flown with Delta and American Airlines from Buenos Aires to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,487 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.8

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Delta
7.8
Good
8,487 reviews
Delta
7.8
Good
8,487 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.8

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
American Airlines
7.1
Good
11,841 reviews
Delta
7.8
Good
8,487 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.8

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

Related info for your journey

Find useful and relevant information for your journey from Buenos Aires to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Buenos Aires?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Buenos Aires to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Buenos Aires; the airport handles an average of 0 inbound flights from Buenos Aires per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Seattle airport from Buenos Aires. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • How long is the flight from Buenos Aires to Seattle?

    Departing from Buenos Aires to Seattle will take you 20h 26m. There are 6911 mi between Buenos Aires and Seattle. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Buenos Aires to Seattle round-trip?

    Our cheapest airline available from Buenos Aires to Seattle is American Airlines. Our recent data shows that you can find tickets from as low as $1,050 on this airline. American Airlines is currently priced 21% below the average price you’ll pay for this route.

  • Can I find deals for flights from Buenos Aires to Seattle that include hotel bookings?

    Yes. In addition to deals on Buenos Aires to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buenos Aires to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buenos Aires to Seattle.

  • Can I find deals for business class flights from Buenos Aires to Seattle?

    Yes. Cheapflights offers flight deals from Buenos Aires to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buenos Aires to Seattle?

    Currently, March is the cheapest month in which you can book a flight from Buenos Aires to Seattle (average of $1,041). Flying from Buenos Aires to Seattle in May is currently the most expensive (average of $1,566). 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Edmonds
Tukwila
Snoqualmie
Tumwater
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
Lynnwood
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Buenos Aires to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Ministro Pistarini to Portland flights

Top airline flying from Buenos Aires to Seattle

Discover the top airline that operate flights from Buenos Aires to Seattle. 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 July 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$1,050Average$1,093FlexibilityNo cancel feeOn-time71%

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