HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Buenos Aires

$396+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUE
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$1,028
(Copa Airlines)

One-way from

$396
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,311
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 ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 12, 2025.

This Copa Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 10/307:28 pmSEA - EZE
2 stops22h 31mCopa Airlines
Sat 11/112:49 amEZE - SEA
2 stops27h 21mCopa Airlines
Deal found 6/10$1,028
This Rumbo deal was found by Cheapflights users on 6/9. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:15 amSEA - EZE
2 stops27h 15mAir Canada
Mon 9/224:35 pmEZE - SEA
2 stops30h 56mAir Canada
Deal found 6/9$1,029
This United Airlines deal was found by Cheapflights users on 6/10. 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 12/711:55 pmPDX - EZE
2 stops26h 25mUnited Airlines
Mon 12/1510:05 pmEZE - PDX
2 stops25h 00mUnited Airlines
Deal found 6/10$1,116
This LATAM Airlines deal was found by Cheapflights users on 6/11. 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 9/182:30 pmPDX - EZE
1 stop15h 15mDelta
Thu 9/258:10 pmEZE - PDX
1 stop18h 46mDelta
Deal found 6/11$1,125
This LATAM Airlines deal was found by Cheapflights users on 6/10. 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 12/812:15 pmPDX - AEP
2 stops24h 45mLATAM Airlines
Mon 12/152:55 pmAEP - PDX
2 stops25h 58mLATAM Airlines
Deal found 6/10$1,125
This FlightHub deal was found by Cheapflights users on 6/11. 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.
Sun 10/2610:00 pmSEA - EZE
2 stops22h 50mLATAM Airlines
Sun 11/97:35 pmEZE - SEA
2 stops23h 52mLATAM Airlines
Deal found 6/11$1,148
This Air Canada deal was found by Cheapflights users on 6/11. 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.
Sun 8/247:20 amSEA - EZE
3 stops27h 10mMultiple Airlines
Sat 9/61:40 amEZE - SEA
2 stops37h 19mMultiple Airlines
Deal found 6/11$1,153
This FlightHub deal was found by Cheapflights users on 6/10. 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.
Wed 8/131:30 pmSEA - AEP
2 stops22h 35mLATAM Airlines
Wed 8/278:10 pmAEP - SEA
2 stops22h 28mLATAM Airlines
Deal found 6/10$1,157
This Justfly.com deal was found by Cheapflights users on 6/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/511:32 amPDX - EZE
2 stops20h 15mLATAM Airlines
Wed 9/177:40 amEZE - PDX
2 stops39h 28mLATAM Airlines
Deal found 6/12$1,160
This Delta deal was found by Cheapflights users on 6/9. 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 11/1812:00 pmSEA - EZE
2 stops25h 45mDelta
Mon 12/110:25 pmEZE - SEA
1 stop26h 04mDelta
Deal found 6/9$1,195
This Mytrip deal was found by Cheapflights users on 6/10. 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 9/147:40 pmPDX - EZE
3 stops62h 50mAir Canada
Wed 9/244:35 pmEZE - PDX
3 stops30h 11mAir Canada
Deal found 6/10$1,197
This United Airlines deal was found by Cheapflights users on 6/9. 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 11/125:05 amSEA - EZE
2 stops21h 15mUnited Airlines
Tue 12/211:55 pmEZE - SEA
3 stops25h 59mUnited Airlines
Deal found 6/9$1,200

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 June 12, 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

Thu 10/30

7:28 pm-9:59 pm

2 stops22h 31m

Buenos Aires Ministro Pistarini

Sat 11/1

12:49 am-12:10 am

2 stops27h 21m

$1,028

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 9/9

7:15 am-2:30 pm

2 stops27h 15m

Buenos Aires Ministro Pistarini

Mon 9/22

4:35 pm-7:31 pm

2 stops30h 56m

$1,029

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Sun 12/7

11:55 pm-7:20 am

2 stops26h 25m

Buenos Aires Ministro Pistarini

Mon 12/15

10:05 pm-6:05 pm

2 stops25h 00m

$1,116

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Thu 9/18

2:30 pm-9:45 am

1 stop15h 15m

Buenos Aires Ministro Pistarini

Thu 9/25

8:10 pm-10:56 am

1 stop18h 46m

$1,125

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Mon 12/8

12:15 pm-6:00 pm

2 stops24h 45m

Buenos Aires Jorge Newbery

Mon 12/15

2:55 pm-11:53 am

2 stops25h 58m

$1,125

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Sun 10/26

10:00 pm-12:50 am

2 stops22h 50m

Buenos Aires Ministro Pistarini

Sun 11/9

7:35 pm-2:27 pm

2 stops23h 52m

$1,148

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Sun 8/24

7:20 am-2:30 pm

3 stops27h 10m

Buenos Aires Ministro Pistarini

Sat 9/6

1:40 am-10:59 am

2 stops37h 19m

$1,153

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Wed 8/13

1:30 pm-4:05 pm

2 stops22h 35m

Buenos Aires Jorge Newbery

Wed 8/27

8:10 pm-2:38 pm

2 stops22h 28m

$1,157

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Fri 9/5

11:32 am-11:47 am

2 stops20h 15m

Buenos Aires Ministro Pistarini

Wed 9/17

7:40 am-7:08 pm

2 stops39h 28m

$1,160

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 11/18

12:00 pm-6:45 pm

2 stops25h 45m

Buenos Aires Ministro Pistarini

Mon 12/1

10:25 pm-7:29 pm

1 stop26h 04m

$1,195

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 43 results
1
2
3
...
5

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 June 12, 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 June 12, 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
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LATAM Airlines
7.5
Good
1,785 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Copa Airlines
7.5
Good
1,451 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aeromexico
7.5
Good
1,706 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 Air Canada. According to our data, you can fly for as low as $513. Users have also found prices from $603 and $688 on Copa Airlines and American 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

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
San Francisco to Ministro Pistarini flights
Dulles Intl to Ministro Pistarini flights
Los Angeles to Jorge Newbery flights
Dallas/Fort Worth to Ministro Pistarini flights
Reagan-National to Ministro Pistarini flights
Hobby to Ministro Pistarini flights
O'Hare Intl to Ministro Pistarini flights
Atlanta to Ministro Pistarini flights
Fort Lauderdale to Ministro Pistarini flights
Dulles Intl to Jorge Newbery flights
Baltimore to Ministro Pistarini flights
Orlando to Ministro Pistarini flights
George Bush Intcntl to Ministro Pistarini flights
San Francisco to Jorge Newbery flights
Boston to Ministro Pistarini flights
Seattle to Ministro Pistarini flights
Dallas/Fort Worth to Jorge Newbery flights
Boston to Jorge Newbery flights
Newark to Jorge Newbery flights
Denver to Ministro Pistarini flights
Orlando to Jorge Newbery flights
Midway to Ministro Pistarini flights
Austin to Ministro Pistarini flights
Atlanta to Jorge Newbery flights
Hobby to Jorge Newbery flights
Fort Lauderdale to Jorge Newbery flights
Seattle to Jorge Newbery flights
Ontario to Ministro Pistarini flights
Austin to Jorge Newbery flights
Denver to Jorge Newbery flights
Love Field to Ministro Pistarini flights
Raleigh to Ministro Pistarini flights
Tallahassee to Ministro Pistarini flights
Miami to Mendoza flights
Miami to Cordoba flights
Salt Lake City to Ministro Pistarini flights
George Bush Intcntl to Jorge Newbery flights
Detroit to Ministro Pistarini flights
Tampa to Ministro Pistarini 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$1,100Average$1,311FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$1,113Average$1,208FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,113Average$1,635FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,200Average$1,336FlexibilityNo 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.