HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Buenos Aires

$410+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUE
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington 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.

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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$949
(Trip.com)

One-way from

$497
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,437
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 Washington to Buenos Aires (BUE)
Search Deals
One-way flight from Washington to Buenos Aires (BUE)
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

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 February 20, 2025.

This Trip.com deal was found by Cheapflights users on 2/19. 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.
Tue 4/227:18 amSEA - AEP
2 stops28h 22mMultiple Airlines
Tue 4/296:20 amAEP - SEA
2 stops31h 54mMultiple Airlines
Deal found 2/19$949
This SmartFares deal was found by Cheapflights users on 2/19. 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.
Sun 2/2311:05 pmSEA - AEP
2 stops34h 35mLATAM Airlines
Tue 2/256:20 pmAEP - SEA
2 stops45h 25mLATAM Airlines
Deal found 2/19$1,008
This Delta deal was found by Cheapflights users on 2/20. 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 9/1011:45 amPDX - EZE
1 stop18h 00mDelta
Thu 9/258:10 pmEZE - PDX
1 stop18h 29mDelta
Deal found 2/20$1,125
This LATAM Airlines deal was found by Cheapflights users on 2/19. 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 9/16:00 amPDX - AEP
2 stops28h 40mLATAM Airlines
Wed 10/159:05 pmAEP - PDX
3 stops30h 54mLATAM Airlines
Deal found 2/19$1,125
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Mon 9/15:54 amPDX - EZE
2 stops23h 06mAmerican Airlines
Wed 10/158:30 pmEZE - PDX
1 stop30h 30mAmerican Airlines
Deal found 2/19$1,149
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Sat 5/311:59 pmPDX - EZE
2 stops52h 01mUnited Airlines
Tue 5/139:00 pmEZE - PDX
2 stops29h 53mUnited Airlines
Deal found 2/20$1,153
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:00 amSEA - EZE
1 stop22h 00mDelta
Sun 11/167:35 pmEZE - SEA
2 stops24h 05mDelta
Deal found 2/19$1,175
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Mon 10/67:51 amSEA - EZE
2 stops19h 44mAmerican Airlines
Tue 10/1410:00 pmEZE - SEA
1 stop29h 14mAmerican Airlines
Deal found 2/19$1,179
This United Airlines deal was found by Cheapflights users on 2/19. 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 4/295:14 amSEA - EZE
2 stops22h 46mUnited Airlines
Tue 5/139:00 pmEZE - SEA
3 stops25h 30mUnited Airlines
Deal found 2/19$1,180
This Copa Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2912:45 pmSEA - EZE
2 stops29h 26mCopa Airlines
Mon 5/1212:06 amEZE - SEA
2 stops28h 53mCopa Airlines
Deal found 2/19$1,188
This LATAM Airlines deal was found by Cheapflights users on 2/18. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/37:30 amPDX - EZE
2 stops24h 18mLATAM Airlines
Sun 7/137:13 pmEZE - PDX
2 stops20h 29mLATAM Airlines
Deal found 2/18$1,205
This Gurufare deal was found by Cheapflights users on 2/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/97:10 amSEA - EZE
2 stops31h 03mLATAM Airlines
Tue 4/223:55 amEZE - SEA
2 stops34h 27mLATAM Airlines
Deal found 2/18$1,209

Find flights from Washington to Buenos Aires within your budget

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 February 20, 2025.

Fly from

Washington

Fly to

Buenos Aires

Route

Depart

Return

Price

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Tue 4/22

7:18 am-3:40 pm

2 stops28h 22m

Buenos Aires Jorge Newbery

Tue 4/29

6:20 am-10:14 am

2 stops31h 54m

$949

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Sun 2/23

11:05 pm-2:40 pm

2 stops34h 35m

Buenos Aires Jorge Newbery

Tue 2/25

6:20 pm-10:45 am

2 stops45h 25m

$1,008

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Sat 5/3

11:59 pm-8:00 am

2 stops52h 01m

Buenos Aires Ministro Pistarini

Tue 5/13

9:00 pm-10:53 pm

2 stops29h 53m

$1,153

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 4/29

11:55 am-11:48 am

2 stops19h 53m

Buenos Aires Ministro Pistarini

Tue 5/13

7:13 pm-2:53 pm

2 stops23h 40m

$1,175

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 4/29

5:14 am-8:00 am

2 stops22h 46m

Buenos Aires Ministro Pistarini

Tue 5/13

9:00 pm-6:30 pm

3 stops25h 30m

$1,180

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 4/29

12:45 pm-10:11 pm

2 stops29h 26m

Buenos Aires Ministro Pistarini

Mon 5/12

12:06 am-12:59 am

2 stops28h 53m

$1,188

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Fri 4/11

11:00 pm-9:45 am

1 stop30h 45m

Buenos Aires Ministro Pistarini

Thu 4/24

8:10 pm-7:03 pm

1 stop26h 53m

$1,213

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Thu 4/24

7:00 am-5:00 pm

2 stops30h 00m

Buenos Aires Jorge Newbery

Sun 5/11

10:35 am-11:48 am

2 stops29h 13m

$1,224

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Wed 4/2

3:05 pm-12:58 am

3 stops29h 53m

Buenos Aires Ministro Pistarini

Wed 4/9

2:45 pm-6:51 pm

2 stops32h 06m

$1,226

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Sat 7/5

11:35 pm-9:45 am

1 stop30h 10m

Buenos Aires Ministro Pistarini

Sun 7/27

8:10 pm-7:29 pm

1 stop27h 19m

$1,231

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 40 results
1
2
3
4

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.

Travel insights for flights from Washington to Buenos Aires

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

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 February 20, 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 February 20, 2025.
Get a feel of what it's like to fly with Delta, Copa Airlines and LATAM 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
8,220 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
7.6
Good
1,510 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
1,795 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
1,771 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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 $539. Users have also found prices from $582 and $694 on Air Canada and Aeromexico, 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

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.

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
John F Kennedy Intl to Ministro Pistarini flights
Miami to Jorge Newbery flights
John F Kennedy Intl to Jorge Newbery flights
LaGuardia to Ministro Pistarini flights
Newark to Ministro Pistarini flights
Los Angeles to Ministro Pistarini flights
Hobby to Ministro Pistarini flights
San Francisco to Ministro Pistarini flights
Dallas/Fort Worth to Ministro Pistarini flights
Dulles Intl to Ministro Pistarini flights
Los Angeles to Jorge Newbery flights
O'Hare Intl to Ministro Pistarini flights
George Bush Intcntl to Ministro Pistarini flights
Reagan-National to Ministro Pistarini flights
Atlanta to Ministro Pistarini flights
Newark to Jorge Newbery flights
San Francisco to Jorge Newbery flights
Baltimore to Ministro Pistarini flights
Seattle to Ministro Pistarini flights
Dulles Intl to Jorge Newbery flights
Seattle to Jorge Newbery flights
Boston to Ministro Pistarini flights
Dallas/Fort Worth to Jorge Newbery flights
Midway to Ministro Pistarini flights
Fort Lauderdale to Ministro Pistarini flights
Ontario to Ministro Pistarini flights
Orlando to Ministro Pistarini flights
Boston to Jorge Newbery flights
Austin to Ministro Pistarini flights
Hobby to Jorge Newbery flights
Austin to Jorge Newbery flights
Salt Lake City to Ministro Pistarini flights
Denver to Ministro Pistarini flights
Charlotte to Ministro Pistarini flights
Love Field to Ministro Pistarini flights
Orlando to Jorge Newbery flights
Atlanta to Jorge Newbery flights
Charlotte to Jorge Newbery flights
Miami to Cordoba flights
Salt Lake City to Jorge Newbery flights
San Diego to Ministro Pistarini flights
Tampa to Jorge Newbery flights
George Bush Intcntl to Jorge Newbery flights
John F Kennedy Intl to Mendoza flights

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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$1,100Average$1,368FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$1,113Average$1,240FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,129Average$1,545FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,208Average$1,402FlexibilityNo 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.