HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Buenos Aires

$437+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUE
dic 23 — dic 301
lun 12/23
lun 12/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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
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.

The best prices from Seattle/Tacoma Intl to Buenos Aires are usually found in April or November, booked 23 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap 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 dicembre 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,265
(Trip.com)

One-way from

$437
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$1,728
Provider with most accurate pricing for Seattle/Tacoma Intl-Buenos Aires (BUE) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Buenos Aires (BUE) flights.
Search Deals
From Seattle/Tacoma Intl to Buenos Aires (BUE)
Search Deals
One-way flight from Seattle/Tacoma Intl to Buenos Aires (BUE)
Search Deals
High demand for flights, 4% potential price rise
Search Deals
Best time to find cheap flights, 2% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

Find flight deals from Seattle to Buenos Aires

Cheapest flights from Seattle to Buenos Aires
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 dicembre 18, 2024.

This Mytrip deal was found by Cheapflights users on 12/18. 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.
sab 12/2811:59 pmSEA - AEP
3 stops33h 01mMultiple Airlines
sab 1/184:30 amAEP - SEA
3 stops32h 12mMultiple Airlines
Deal found 12/18$1,785
This United Airlines deal was found by Cheapflights users on 12/18. 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.
sab 12/287:15 amSEA - EZE
2 stops19h 05mUnited Airlines
dom 1/1911:55 pmEZE - SEA
2 stops39h 04mUnited Airlines
Deal found 12/18$1,800
This Mytrip deal was found by Cheapflights users on 12/18. 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.
sab 12/2811:59 pmSEA - EZE
3 stops24h 36mMultiple Airlines
dom 1/195:00 pmEZE - SEA
3 stops33h 30mMultiple Airlines
Deal found 12/18$1,858
This Copa Airlines deal was found by Cheapflights users on 12/17. 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.
mar 12/174:23 pmSEA - EZE
2 stops27h 40mCopa Airlines
sab 1/410:55 amEZE - SEA
2 stops30h 46mCopa Airlines
Deal found 12/17$1,897
This KAYAK deal was found by Cheapflights users on 12/18. 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.
sab 12/286:15 amSEA - AEP
2 stops23h 15mLATAM Airlines
dom 1/195:05 pmAEP - SEA
2 stops46h 40mLATAM Airlines
Deal found 12/18$1,964
This American Airlines deal was found by Cheapflights users on 12/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven 12/2712:55 amSEA - EZE
1 stop27h 15mAmerican Airlines
dom 1/1910:30 pmEZE - SEA
1 stop17h 17mAmerican Airlines
Deal found 12/18$2,039
This KAYAK deal was found by Cheapflights users on 12/17. 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.
ven 12/206:15 amSEA - EZE
2 stops30h 55mLATAM Airlines
dom 1/55:36 amEZE - SEA
2 stops34h 09mLATAM Airlines
Deal found 12/17$3,544
This Air Canada deal was found by Cheapflights users on 12/17. 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.
dom 12/226:05 amSEA - EZE
2 stops28h 20mAir Canada
ven 1/105:00 pmEZE - SEA
3 stops30h 25mAir Canada
Deal found 12/17$4,133
This Delta deal was found by Cheapflights users on 12/17. 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.
mar 12/1711:40 pmSEA - EZE
2 stops25h 20mDelta
sab 1/49:30 amEZE - SEA
1 stop30h 15mDelta
Deal found 12/17$4,922
This Delta deal was found by Cheapflights users on 12/17. 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.
gio 12/198:45 amSEA - AEP
2 stops21h 15mDelta
sab 1/45:20 amAEP - SEA
2 stops24h 04mDelta
Deal found 12/17$8,347

Find flights from Seattle to Buenos Aires within your budget

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 dicembre 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

lun 1/20

9:30 am-9:55 pm

1 stop31h 25m

Buenos Aires Ministro Pistarini

lun 1/27

11:55 pm-8:00 pm

1 stop25h 05m

$1,265

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

dom 1/19

1:59 pm-7:20 am

1 stop36h 21m

Buenos Aires Ministro Pistarini

gio 3/27

11:55 pm-7:19 pm

1 stop23h 24m

$1,266

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

mar 1/21

7:00 am-10:30 am

2 stops22h 30m

Buenos Aires Jorge Newbery

mar 1/28

5:05 pm-2:40 pm

2 stops26h 35m

$1,267

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

mar 1/14

5:15 pm-1:09 am

2 stops26h 54m

Buenos Aires Ministro Pistarini

mar 1/28

5:00 pm-6:43 pm

2 stops30h 43m

$1,269

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

ven 1/31

6:05 am-8:40 pm

2 stops33h 35m

Buenos Aires Jorge Newbery

ven 2/7

6:20 pm-5:00 pm

2 stops27h 40m

$1,275

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

mer 3/5

8:05 am-10:03 pm

2 stops32h 58m

Buenos Aires Ministro Pistarini

mer 3/19

3:55 am-11:59 pm

2 stops24h 04m

$1,276

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

lun 2/10

6:05 am-3:25 pm

2 stops28h 20m

Buenos Aires Ministro Pistarini

mer 2/19

5:00 pm-9:30 pm

2 stops33h 30m

$1,287

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

lun 1/20

6:10 am-12:48 am

2 stops37h 38m

Buenos Aires Ministro Pistarini

lun 1/27

10:55 am-2:00 pm

2 stops32h 05m

$1,293

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

mar 1/21

9:45 am-10:39 am

1 stop19h 54m

Buenos Aires Ministro Pistarini

mar 1/28

11:10 pm-2:56 pm

2 stops20h 46m

$1,314

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

lun 1/20

6:15 am-9:45 am

2 stops22h 30m

Buenos Aires Ministro Pistarini

ven 3/28

10:25 pm-7:33 pm

1 stop25h 08m

$1,353

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 22 results
1
2
3

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Buenos Aires flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Buenos Aires flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-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.
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.

Travel insights for flights from Seattle to Buenos Aires

Get recent, data-driven insights about flights from Seattle to Buenos Aires including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Buenos Aires. Price data was last updated on December 13, 2024.

Booking 23 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.

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

Currently, April is the cheapest month in which you can book a flight from Seattle to Buenos Aires (average of $795). Flying from Seattle to Buenos Aires in February is currently the most expensive (average of $1,114). 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.

What is the cheapest time of day to fly from SEA to BUE?

Find hourly flight availability from Seattle to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated dicembre 18, 2024.

It’s optimal to fly from Seattle to Buenos Aires in the afternoon. By choosing this option you can save up to 10% on the cost of your flight, compared to a flight at noon.

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buenos Aires ranges from 2.0 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. June is typically the driest time to visit Buenos Aires when rainfall is around 2.0 in.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

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 dicembre 18, 2024.
To help decide which airline to fly from Seattle to Buenos Aires, see what other customers have to say about American Airlines, LATAM Airlines and Delta. 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.
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Copa Airlines
7.7
Good
1,721 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

LATAM Airlines
7.5
Good
1,879 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aeromexico
7.5
Good
1,930 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
9,055 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Buenos Aires. On average, Seattle/Tacoma Intl has 0 outbound flights to Buenos Aires per day from 5 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • What are the cheapest airlines flying from Seattle to Buenos Aires round-trip?

    Cheapflights users have booked flights from Seattle to Buenos Aires round-trip from $1,265. Other airlines that can offer you cheap pricing are United Airlines, from $1,266, and LATAM Airlines, from $1,267. You may be able to fly from Seattle to Buenos Aires for 8% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Seattle to Buenos Aires one-way?

    The cheapest airlines for a one-way flight from Seattle to Buenos Aires are Copa Airlines ($439), Air Canada ($645), and Delta ($767).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Buenos Aires 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 Seattle to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from Seattle to Buenos Aires (average of $795). Flying from Seattle to Buenos Aires in February is currently the most expensive (average of $1,114). 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

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.

Top 5 airlines flying from Seattle to Buenos Aires

Discover the top 5 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 dicembre 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
AeromexicoCheapest$997Average$1,197FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,100Average$1,374FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$1,113Average$1,246FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,129Average$1,416FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,208Average$1,411FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.