How long is the flight from State of Washington to Buenos Aires?

For as low as $1,116, Copa Airlines can have you in Buenos Aires from State of Washington in 15h 25m. The distance between State of Washington and Buenos Aires is about 6836 mi. This flight may include one or multiple stops.

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.

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).

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.

What are the most popular airlines that fly from State of Washington to Buenos Aires?

American Airlines, Delta and United Airlines are the most popular airlines when flying 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.

$375+ Flights from Washington to Buenos Aires

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Cheap flight deals from Washington to Buenos Aires

Round-trip from	$933 (Trip.com)
One-way from	$375 (Kiwi.com)
Popular in	December
Cheapest in	June
Average price	$1,300

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 ($67 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($24 potential savings vs. average RT price).

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Average for round-trip flights in September 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 September 16, 2025.

Thu 10/3010:08 amSEA - AEP

2 stops28h 32mMultiple Airlines

Thu 11/68:25 pmAEP - SEA

2 stops28h 12mMultiple Airlines

Deal found 9/15

$933

Mon 10/138:30 amSEA - EZE

1 stop30h 45mMultiple Airlines

Wed 12/108:00 amEZE - SEA

1 stop19h 30mMultiple Airlines

Deal found 9/14

$955

Thu 10/3010:08 amSEA - EZE

2 stops36h 42mMultiple Airlines

Thu 11/67:43 pmEZE - SEA

2 stops28h 54mMultiple Airlines

Deal found 9/15

$1,003

Thu 10/301:18 pmPDX - AEP

2 stops22h 42mMultiple Airlines

Thu 11/68:25 pmAEP - PDX

2 stops20h 58mMultiple Airlines

Deal found 9/14

$1,005

Tue 11/259:50 pmSEA - EZE

2 stops27h 00mMultiple Airlines

Mon 12/1511:00 amEZE - SEA

1 stop40h 30mMultiple Airlines

Deal found 9/14

$1,074

Mon 10/136:00 amSEA - EZE

2 stops20h 10mLATAM Airlines

Wed 11/57:50 amEZE - SEA

2 stops21h 04mLATAM Airlines

Deal found 9/16

$1,075

Fri 10/311:21 pmPDX - AEP

2 stops22h 39mMultiple Airlines

Sat 11/153:40 pmAEP - PDX

2 stops25h 43mMultiple Airlines

Deal found 9/16

$1,080

Mon 12/82:15 pmPDX - EZE

2 stops35h 05mMultiple Airlines

Mon 12/1511:00 amEZE - PDX

1 stop38h 50mMultiple Airlines

Deal found 9/15

$1,082

Sun 12/72:15 pmPDX - EZE

2 stops35h 05mMultiple Airlines

Mon 12/1511:00 amEZE - PDX

1 stop38h 50mMultiple Airlines

Deal found 9/15

$1,083

Wed 10/85:31 pmSEA - EZE

2 stops27h 24mCopa Airlines

Sat 10/185:08 amEZE - SEA

2 stops20h 45mCopa Airlines

Deal found 9/15

$1,089

Tue 11/189:22 amSEA - EZE

2 stops39h 28mMultiple Airlines

Tue 12/211:00 amEZE - SEA

1 stop40h 30mMultiple Airlines

Deal found 9/14

$1,093

Tue 10/142:52 pmPDX - EZE

2 stops31h 38mMultiple Airlines

Tue 10/217:30 amEZE - PDX

2 stops30h 00mMultiple Airlines

Deal found 9/16

$1,093

Best flights from Washington to Buenos Aires
Discover carefully curated flight deals from Washington to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2025.

Thu 10/3010:08 amSEA - AEP

2 stops28h 32mMultiple Airlines

Thu 11/68:25 pmAEP - SEA

2 stops28h 12mMultiple Airlines

Deal found 9/15

$933

Wed 10/85:31 pmSEA - EZE

2 stops27h 24mCopa Airlines

Sat 10/185:08 amEZE - SEA

2 stops20h 45mCopa Airlines

Deal found 9/15

$1,089

Mon 12/812:55 pmPDX - EZE

1 stop15h 25mUnited Airlines

Tue 12/1611:55 pmEZE - PDX

1 stop17h 17mUnited Airlines

Deal found 9/14

$1,116

Tue 12/910:05 amPDX - EZE

2 stops17h 55mDelta

Wed 12/178:55 pmEZE - PDX

2 stops23h 38mDelta

Deal found 9/14

$1,116

Sun 12/710:10 pmPDX - AEP

2 stops28h 45mLATAM Airlines

Tue 12/163:40 pmAEP - PDX

2 stops26h 55mLATAM Airlines

Deal found 9/14

$1,125

Thu 10/301:18 pmPDX - AEP

2 stops22h 42mMultiple Airlines

Thu 11/68:25 pmAEP - PDX

2 stops20h 58mMultiple Airlines

Deal found 9/14

$1,005

Mon 12/810:05 amPDX - EZE

2 stops17h 55mDelta

Sun 12/144:05 amEZE - PDX

2 stops23h 52mDelta

Deal found 9/14

$1,116

Tue 12/98:30 amPDX - EZE

2 stops19h 50mUnited Airlines

Wed 12/1711:55 pmEZE - PDX

1 stop18h 25mUnited Airlines

Deal found 9/14

$1,116

Tue 11/117:20 amPDX - AEP

2 stops22h 10mLATAM Airlines

Mon 11/245:15 pmAEP - PDX

2 stops22h 23mLATAM Airlines

Deal found 9/15

$1,125

Fri 10/311:21 pmPDX - AEP

2 stops22h 39mMultiple Airlines

Sat 11/153:40 pmAEP - PDX

2 stops25h 43mMultiple Airlines

Deal found 9/16

$1,080

Wed 12/106:29 amPDX - EZE

2 stops21h 31mDelta

Thu 12/188:00 amEZE - PDX

2 stops21h 05mDelta

Deal found 9/14

$1,116

Sun 12/711:59 pmPDX - EZE

2 stops26h 21mUnited Airlines

Wed 12/1710:05 pmEZE - PDX

1 stop20h 15mUnited Airlines

Deal found 9/14

$1,116

Mon 12/86:00 amPDX - AEP

2 stops30h 00mLATAM Airlines

Tue 12/163:40 pmAEP - PDX

2 stops26h 55mLATAM Airlines

Deal found 9/14

$1,125

Sun 12/710:10 pmPDX - EZE

1 stop29h 50mDelta

Thu 12/188:00 amEZE - PDX

2 stops21h 05mDelta

Deal found 9/14

$1,116

Sun 12/710:10 pmPDX - AEP

2 stops28h 45mLATAM Airlines

Sun 12/145:15 pmAEP - PDX

2 stops23h 34mLATAM Airlines

Deal found 9/14

$1,125

Fri 10/315:50 amSEA - AEP

3 stops31h 10mMultiple Airlines

Fri 11/74:40 pmAEP - SEA

3 stops26h 51mMultiple Airlines

Deal found 9/16

$1,147

Wed 12/106:00 amPDX - EZE

2 stops20h 20mUnited Airlines

Tue 12/1611:55 pmEZE - PDX

2 stops23h 46mUnited Airlines

Deal found 9/16

$1,170

Thu 12/1111:46 amPDX - EZE

1 stop16h 14mDelta

Thu 12/188:00 amEZE - PDX

2 stops21h 05mDelta

Deal found 9/14

$1,116

Tue 12/96:00 amPDX - AEP

2 stops31h 40mLATAM Airlines

Tue 12/1611:30 amAEP - PDX

2 stops31h 05mLATAM Airlines

Deal found 9/15

$1,125

Thu 11/277:10 amSEA - EZE

1 stop19h 10mUnited Airlines

Mon 12/1511:55 pmEZE - SEA

1 stop17h 47mUnited Airlines

Deal found 9/14

$1,175

Tue 11/1812:35 amPDX - EZE

2 stops25h 45mDelta

Wed 11/268:55 pmEZE - PDX

2 stops24h 17mDelta

Deal found 9/14

$1,130

Fri 11/286:00 amPDX - AEP

2 stops20h 55mLATAM Airlines

Sun 12/78:25 pmAEP - PDX

2 stops22h 10mLATAM Airlines

Deal found 9/16

$1,165

Thu 12/1111:46 amPDX - EZE

1 stop16h 14mDelta

Mon 12/158:55 pmEZE - PDX

1 stop27h 36mDelta

Deal found 9/14

$1,170

Thu 11/2711:40 amSEA - EZE

2 stops22h 15mLATAM Airlines

Mon 12/154:05 amEZE - SEA

2 stops22h 57mLATAM Airlines

Deal found 9/15

$1,175

Tue 11/257:20 amSEA - EZE

1 stop21h 55mDelta

Thu 12/188:00 amEZE - SEA

2 stops21h 20mDelta

Deal found 9/15

$1,175

Wed 11/266:00 amSEA - AEP

2 stops20h 55mLATAM Airlines

Tue 12/163:40 pmAEP - SEA

2 stops25h 59mLATAM Airlines

Deal found 9/16

$1,175

Sun 9/287:15 amGEG - EZE

2 stops20h 45mUnited Airlines

Wed 10/19:00 pmEZE - GEG

2 stops30h 15mUnited Airlines

Deal found 9/14

$1,470

Sun 11/3011:19 pmSEA - EZE

2 stops25h 46mDelta

Tue 12/1611:55 pmEZE - SEA

1 stop17h 45mDelta

Deal found 9/15

$1,175

Tue 12/27:10 amSEA - AEP

2 stops22h 20mLATAM Airlines

Sun 12/145:15 pmAEP - SEA

2 stops24h 17mLATAM Airlines

Deal found 9/15

$1,175

Mon 11/2411:19 pmSEA - EZE

2 stops25h 36mDelta

Sun 12/144:05 amEZE - SEA

2 stops22h 57mDelta

Deal found 9/16

$1,175

Last-minute flights from Washington to Buenos Aires
Discover last-minute flight deals from Washington to Buenos Aires. Data last updated September 16, 2025 and is based on user searches.

Wed 10/85:31 pmSEA - EZE

2 stops27h 24mCopa Airlines

Sat 10/185:08 amEZE - SEA

2 stops20h 45mCopa Airlines

Deal found 9/15

$1,089

Sat 10/117:37 pmSEA - EZE

2 stops28h 42mCopa Airlines

Sat 10/185:08 amEZE - SEA

2 stops20h 45mCopa Airlines

Deal found 9/14

$1,170

Mon 10/138:30 amSEA - EZE

1 stop30h 45mMultiple Airlines

Wed 12/108:00 amEZE - SEA

1 stop19h 30mMultiple Airlines

Deal found 9/14

$955

Mon 10/136:00 amSEA - EZE

2 stops27h 55mLATAM Airlines

Tue 11/44:05 amEZE - SEA

2 stops24h 29mLATAM Airlines

Deal found 9/16

$1,075

Tue 10/142:52 pmPDX - EZE

2 stops31h 38mMultiple Airlines

Tue 10/217:30 amEZE - PDX

2 stops30h 00mMultiple Airlines

Deal found 9/16

$1,093

Thu 10/168:30 amSEA - EZE

2 stops38h 00mMultiple Airlines

Wed 10/223:55 amEZE - SEA

2 stops22h 35mMultiple Airlines

Deal found 9/16

$1,163

Fri 10/247:00 amPDX - EZE

2 stops24h 45mMultiple Airlines

Tue 11/187:43 pmEZE - PDX

2 stops23h 07mMultiple Airlines

Deal found 9/14

$1,147

Thu 10/3010:08 amSEA - AEP

2 stops28h 32mMultiple Airlines

Thu 11/68:25 pmAEP - SEA

2 stops28h 12mMultiple Airlines

Deal found 9/15

$933

Thu 10/3010:08 amSEA - EZE

2 stops36h 42mMultiple Airlines

Thu 11/67:43 pmEZE - SEA

2 stops28h 54mMultiple Airlines

Deal found 9/15

$1,003

Thu 10/301:18 pmPDX - AEP

2 stops22h 42mMultiple Airlines

Thu 11/68:25 pmAEP - PDX

2 stops20h 58mMultiple Airlines

Deal found 9/14

$1,005

Fri 10/311:21 pmPDX - AEP

2 stops22h 39mMultiple Airlines

Sat 11/153:40 pmAEP - PDX

2 stops25h 43mMultiple Airlines

Deal found 9/16

$1,080

Fri 10/315:50 amSEA - AEP

3 stops31h 10mMultiple Airlines

Fri 11/74:40 pmAEP - SEA

3 stops26h 51mMultiple Airlines

Deal found 9/16

$1,147

One-way flights from Washington to Buenos Aires
Search for one-way flight options from Washington to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated September 16, 2025.

Mon 12/85:49 pmPDX - EZE

3 stops31h 01mMultiple Airlines

Deal found 9/15

$375

Tue 10/2812:52 pmPDX - EZE

3 stops55h 58mMultiple Airlines

Deal found 9/13

$391

Tue 10/2812:58 pmSEA - EZE

3 stops38h 56mMultiple Airlines

Deal found 9/15

$397

Mon 10/271:02 pmSEA - EZE

3 stops36h 48mMultiple Airlines

Deal found 9/15

$405

Sun 10/267:15 amSEA - EZE

3 stops42h 40mMultiple Airlines

Deal found 9/15

$407

Sun 10/267:15 amSEA - AEP

3 stops44h 40mMultiple Airlines

Deal found 9/15

$407

Thu 10/301:18 pmSEA - EZE

3 stops36h 32mMultiple Airlines

Deal found 9/15

$409

Fri 10/242:31 pmSEA - AEP

3 stops36h 59mMultiple Airlines

Deal found 9/15

$415

Tue 10/2812:33 pmPDX - AEP

3 stops39h 22mMultiple Airlines

Deal found 9/13

$415

Thu 10/301:18 pmSEA - AEP

3 stops38h 12mMultiple Airlines

Deal found 9/15

$424

Mon 11/245:20 amSEA - AEP

3 stops45h 10mMultiple Airlines

Deal found 9/15

$428

Thu 12/42:15 pmPDX - EZE

3 stops34h 35mMultiple Airlines

Deal found 9/15

$431

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Thu 10/30

10:08 am-6:40 pm

2 stops28h 32m

Buenos Aires Jorge Newbery

Thu 11/6

8:25 pm-7:37 pm

2 stops28h 12m

$933

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Thu 10/30

1:18 pm-4:00 pm

2 stops22h 42m

Buenos Aires Jorge Newbery

Thu 11/6

8:25 pm-12:23 pm

2 stops20h 58m

$1,005

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Fri 10/31

1:21 pm-4:00 pm

2 stops22h 39m

Buenos Aires Jorge Newbery

Sat 11/15

3:40 pm-12:23 pm

2 stops25h 43m

$1,080

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Wed 10/8

5:31 pm-12:55 am

2 stops27h 24m

Buenos Aires Ministro Pistarini

Sat 10/18

5:08 am-9:53 pm

2 stops20h 45m

$1,089

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Mon 12/8

12:55 pm-9:20 am

1 stop15h 25m

Buenos Aires Ministro Pistarini

Tue 12/16

11:55 pm-12:12 pm

1 stop17h 17m

$1,116

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Tue 12/9

10:05 am-9:00 am

2 stops17h 55m

Buenos Aires Ministro Pistarini

Wed 12/17

8:55 pm-3:33 pm

2 stops23h 38m

$1,116

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Mon 12/8

10:05 am-9:00 am

2 stops17h 55m

Buenos Aires Ministro Pistarini

Sun 12/14

4:05 am-10:57 pm

2 stops23h 52m

$1,116

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Tue 12/9

8:30 am-9:20 am

2 stops19h 50m

Buenos Aires Ministro Pistarini

Wed 12/17

11:55 pm-1:20 pm

1 stop18h 25m

$1,116

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Wed 12/10

6:29 am-9:00 am

2 stops21h 31m

Buenos Aires Ministro Pistarini

Thu 12/18

8:00 am-12:05 am

2 stops21h 05m

$1,116

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Sun 12/7

11:59 pm-7:20 am

2 stops26h 21m

Buenos Aires Ministro Pistarini

Wed 12/17

10:05 pm-1:20 pm

1 stop20h 15m

$1,116

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results

...

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?

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.

Related info for your journey

How long is the flight from State of Washington to Buenos Aires?
For as low as $1,116, Copa Airlines can have you in Buenos Aires from State of Washington in 15h 25m. The distance between State of Washington and Buenos Aires is about 6836 mi. This flight may include one or multiple stops.
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

Top 3 airlines flying from Washington to Buenos Aires

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$1,100	Average$1,310	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$1,133	Average$1,677	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$1,200	Average$1,328	FlexibilityNo cancel fee	On-time69%

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$375+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.

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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 September 16, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington to Buenos Aires

Cheapest flights from Washington to Buenos AiresExplore 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 September 16, 2025.

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 September 16, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to Buenos Aires that are best for you.

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.

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?

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 September 16, 2025.

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.

How long is the flight from State of Washington to Buenos Aires?

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

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

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

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

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

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.

Top 3 airlines flying from Washington to Buenos Aires

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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 September 16, 2025.