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Buenos Aires

$353+ Cheap flights from Washington 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
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Washington to Buenos Aires

Keep the following information in mind while searching for Washington to Buenos Aires flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$898
(Mytrip)

One-way from

$353
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,298
Provider with most accurate pricing for Seattle/Tacoma Intl-Buenos Aires (BUE) flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Buenos Aires (BUE) flights.
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From Washington to Buenos Aires (BUE)
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One-way flight from Washington to Buenos Aires (BUE)
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Highest demand for flights based on searches. 4% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Washington to Buenos Aires

Cheapest flights from Washington to Buenos Aires
Explore the most affordable flight options available from Washington to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/96:00 amSEA - EZE
3 stops36h 08mMultiple Airlines
Mon 6/238:30 pmEZE - SEA
3 stops28h 11mMultiple Airlines
Deal found 4/30$898
This Copa Airlines deal was found by Cheapflights users on 4/30. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:35 pmSEA - EZE
2 stops25h 25mCopa Airlines
Thu 11/612:49 amEZE - SEA
2 stops27h 10mCopa Airlines
Deal found 4/30$1,028
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
Mon 11/173:35 pmSEA - AEP
2 stops21h 25mLATAM Airlines
Tue 12/27:10 pmAEP - SEA
2 stops22h 50mLATAM Airlines
Deal found 4/30$1,073
This Delta deal was found by Cheapflights users on 4/30. 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.
Mon 11/1711:15 amSEA - EZE
1 stop17h 30mDelta
Tue 12/28:55 pmEZE - SEA
1 stop24h 43mDelta
Deal found 4/30$1,075
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/411:35 amSEA - AEP
3 stops32h 45mMultiple Airlines
Wed 6/116:20 amAEP - SEA
3 stops32h 31mMultiple Airlines
Deal found 4/30$1,078
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/211:50 pmSEA - EZE
2 stops26h 30mUnited Airlines
Thu 11/1310:05 pmEZE - SEA
3 stops22h 20mUnited Airlines
Deal found 4/30$1,080
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
Sun 11/211:55 pmSEA - EZE
2 stops25h 20mLATAM Airlines
Wed 11/123:45 amEZE - SEA
2 stops25h 29mLATAM Airlines
Deal found 4/30$1,083
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/161:33 amSEA - EZE
1 stop26h 37mAmerican Airlines
Tue 12/211:35 pmEZE - SEA
1 stop28h 47mAmerican Airlines
Deal found 4/30$1,107
This Gotogate deal was found by Cheapflights users on 4/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/47:20 amSEA - EZE
2 stops27h 10mAir Canada
Wed 6/114:35 pmEZE - SEA
2 stops32h 02mAir Canada
Deal found 4/30$1,117
This Delta deal was found by Cheapflights users on 4/30. 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 10/142:30 pmPDX - EZE
2 stops35h 25mDelta
Mon 11/108:55 pmEZE - PDX
1 stop19h 01mDelta
Deal found 4/30$1,125
This LATAM Airlines deal was found by Cheapflights users on 4/30. 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 7/110:30 amPDX - AEP
2 stops24h 10mLATAM Airlines
Wed 8/273:40 pmAEP - PDX
2 stops25h 44mLATAM Airlines
Deal found 4/30$1,125
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/37:04 amPDX - EZE
1 stop20h 56mUnited Airlines
Tue 7/299:00 pmEZE - PDX
2 stops24h 36mUnited Airlines
Deal found 4/30$1,130

Cheapflights Fare Finder

Customize your flight search to find flights from Washington 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 May 1, 2025.
Use the filters below to find and compare flights from Washington to Buenos Aires that are best for you.

Fly from

Washington

Fly to

Buenos Aires

Route

Depart

Return

Price

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 6/9

6:00 am-10:08 pm

3 stops36h 08m

Buenos Aires Ministro Pistarini

Mon 6/23

8:30 pm-8:41 pm

3 stops28h 11m

$898

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Sat 10/25

7:35 pm-1:00 am

2 stops25h 25m

Buenos Aires Ministro Pistarini

Thu 11/6

12:49 am-10:59 pm

2 stops27h 10m

$1,028

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Wed 6/4

11:35 am-12:20 am

3 stops32h 45m

Buenos Aires Jorge Newbery

Wed 6/11

6:20 am-10:51 am

3 stops32h 31m

$1,078

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Wed 6/4

7:20 am-2:30 pm

2 stops27h 10m

Buenos Aires Ministro Pistarini

Wed 6/11

4:35 pm-8:37 pm

2 stops32h 02m

$1,117

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Tue 10/14

2:30 pm-5:55 am

2 stops35h 25m

Buenos Aires Ministro Pistarini

Mon 11/10

8:55 pm-10:56 am

1 stop19h 01m

$1,125

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Tue 7/1

10:30 am-2:40 pm

2 stops24h 10m

Buenos Aires Jorge Newbery

Thu 8/28

8:40 am-10:39 am

2 stops29h 59m

$1,125

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Thu 7/3

7:04 am-8:00 am

1 stop20h 56m

Buenos Aires Ministro Pistarini

Tue 7/29

9:00 pm-5:36 pm

2 stops24h 36m

$1,130

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Sun 7/6

11:40 pm-4:05 pm

2 stops36h 25m

Buenos Aires Jorge Newbery

Tue 7/15

3:40 pm-12:39 pm

2 stops24h 59m

$1,132

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 9/1

7:20 am-11:48 am

2 stops24h 28m

Buenos Aires Ministro Pistarini

Mon 9/22

6:13 pm-12:50 pm

2 stops22h 37m

$1,133

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Wed 10/15

7:00 am-11:48 am

2 stops24h 48m

Buenos Aires Ministro Pistarini

Mon 11/10

7:15 am-10:56 am

2 stops32h 41m

$1,149

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 41 results
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Best time to book a flight from Washington to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Washington 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 Washington to Buenos Aires

What is the cheapest month to book a flight from State of Washington to Buenos Aires?

Currently, April is the cheapest month in which you can book a flight from State of Washington to Buenos Aires (average of $795). Flying from State of Washington to Buenos Aires in December is currently the most expensive (average of $1,260). 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 WA to BUE?

Find hourly flight availability from Washington 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 May 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Buenos Aires as you normally would.

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 May 1, 2025.
Get a feel of what it's like to fly with Delta, LATAM Airlines and Copa Airlines from Washington to Buenos Aires by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LATAM Airlines
7.5
Good
1,767 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Copa Airlines
7.5
Good
1,415 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aeromexico
7.5
Good
1,698 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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 Washington 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 are the cheapest airlines to fly from State of Washington to Buenos Aires one-way?

    For one-way options, check prices for Copa Airlines. According to our data, you can fly for as low as $424. Users have also found prices from $630 and $743 on Air Canada and United Airlines, respectively.

  • What are the most popular routes from State of Washington to Buenos Aires?

    Most travelers choose Seattle/Tacoma Intl - Buenos Aires Ministro Pistarini, Seattle/Tacoma Intl - Buenos Aires Jorge Newbery or Portland - Buenos Aires Ministro Pistarini when deciding on the best route from State of Washington to Buenos Aires.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from State of Washington to Buenos Aires (average of $795). Flying from State of Washington to Buenos Aires in December is currently the most expensive (average of $1,260). 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

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Alternative routes for Washington to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
Miami to Ministro Pistarini flights
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Boston to Jorge Newbery flights
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Top 4 airlines flying from Washington to Buenos Aires

Discover the top 4 airlines that operate flights from Washington 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$1,100Average$1,359FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$1,113Average$1,191FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,113Average$1,640FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,200Average$1,333FlexibilityNo cancel feeOn-time69%

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