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Cheap flights from Washington to Buenos Aires from $454

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Buenos Aires departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Washington to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
GOL Logo
8:47 pm - 1:00 pm
SEA
-
AEP
36h 13m
2 stops
GOL Logo
3:40 am - 12:20 am
AEP
-
SEA
24h 40m
2 stops
$1,215GOL
Sat, Aug 22 - Sun, Aug 30
LATAM Airlines Logo
8:25 am - 10:30 am
SEA
-
AEP
21h 05m
2 stops
LATAM Airlines Logo
8:05 pm - 1:00 pm
AEP
-
SEA
21h 55m
2 stops
$1,224LATAM Airlines
Wed, Nov 4 - Tue, Nov 24
Multiple Airlines Logo
7:45 am - 1:20 pm
SEA
-
AEP
24h 35m
2 stops
Multiple Airlines Logo
1:45 pm - 8:54 pm
AEP
-
SEA
36h 09m
2 stops
$1,230Multiple Airlines
Wed, Nov 11 - Wed, Nov 25
LATAM Airlines Logo
10:00 am - 10:30 am
PDX
-
AEP
19h 30m
2 stops
LATAM Airlines Logo
8:05 pm - 12:18 pm
AEP
-
PDX
21h 13m
2 stops
$1,248LATAM Airlines
Mon, Nov 16 - Mon, Nov 30
GOL Logo
8:47 pm - 1:00 pm
SEA
-
AEP
36h 13m
2 stops
GOL Logo
3:40 am - 12:20 am
AEP
-
SEA
24h 40m
2 stops
$1,251GOL
Sat, Aug 22 - Sun, Aug 30
Multiple Airlines Logo
6:55 am - 7:40 am
SEA
-
AEP
20h 45m
2 stops
Multiple Airlines Logo
8:40 am - 9:58 pm
AEP
-
SEA
41h 18m
2 stops
$1,261Multiple Airlines
Thu, Oct 22 - Wed, Oct 28
Multiple Airlines Logo
11:15 pm - 5:40 am
PDX
-
AEP
26h 25m
3 stops
Multiple Airlines Logo
7:00 am - 5:12 pm
AEP
-
PDX
38h 12m
3 stops
$1,265Multiple Airlines
Sun, Sep 20 - Wed, Sep 30
Delta Logo
7:16 am - 7:40 am
SEA
-
AEP
20h 24m
2 stops
Delta Logo
8:05 pm - 12:27 pm
AEP
-
SEA
20h 22m
2 stops
$1,269Delta
Thu, Aug 13 - Wed, Aug 26
Multiple Airlines Logo
7:45 am - 3:50 pm
SEA
-
AEP
27h 05m
2 stops
Multiple Airlines Logo
1:45 pm - 8:59 pm
AEP
-
SEA
36h 14m
2 stops
$1,275Multiple Airlines
Fri, Nov 20 - Tue, Dec 1
Delta Logo
1:45 pm - 4:00 pm
SEA
-
AEP
22h 15m
2 stops
Delta Logo
8:05 pm - 1:00 pm
AEP
-
SEA
21h 55m
2 stops
$1,280Delta
Thu, Oct 22 - Tue, Nov 3

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GOL flights from State of Washington to Buenos Aires Jorge Newbery Airport

Our best GOL deals on State of Washington to Buenos Aires Jorge Newbery Airport flight tickets
GOL
Aug 22
SEA8:47 pmSeattle/Tacoma Intl
36h 13m
2 stops
AEP1:00 pmBuenos Aires Jorge Newbery
Aug 30
AEP3:40 amBuenos Aires Jorge Newbery
24h 40m
2 stops
SEA12:20 amSeattle/Tacoma Intl
$1,215
GOL
Aug 22
SEA8:47 pmSeattle/Tacoma Intl
36h 13m
2 stops
AEP1:00 pmBuenos Aires Jorge Newbery
Aug 30
AEP3:40 amBuenos Aires Jorge Newbery
24h 40m
2 stops
SEA12:20 amSeattle/Tacoma Intl
$1,251
GOL
Aug 22
SEA8:47 pmSeattle/Tacoma Intl
36h 13m
2 stops
AEP1:00 pmBuenos Aires Jorge Newbery
Aug 30
AEP3:40 amBuenos Aires Jorge Newbery
24h 40m
2 stops
SEA12:20 amSeattle/Tacoma Intl
$1,322

Delta flights from State of Washington to Buenos Aires Jorge Newbery Airport

Our best Delta deals on State of Washington to Buenos Aires Jorge Newbery Airport flight tickets
Delta
Aug 13
SEA7:16 amSeattle/Tacoma Intl
20h 24m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
Aug 26
AEP8:05 pmBuenos Aires Jorge Newbery
20h 22m
2 stops
SEA12:27 pmSeattle/Tacoma Intl
$1,269
Delta
Oct 22
SEA1:45 pmSeattle/Tacoma Intl
22h 15m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Nov 3
AEP8:05 pmBuenos Aires Jorge Newbery
21h 55m
2 stops
SEA1:00 pmSeattle/Tacoma Intl
$1,280
Delta
Nov 22
SEA9:25 pmSeattle/Tacoma Intl
29h 15m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
Dec 2
AEP8:05 pmBuenos Aires Jorge Newbery
21h 55m
2 stops
SEA1:00 pmSeattle/Tacoma Intl
$1,314

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Buenos Aires Jorge Newbery Airport 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, momondo users made 832,500 searches. Data last updated June 25, 2026.
Use the filters below to find and compare flights from Washington to Buenos Aires Jorge Newbery Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Sat 8/22

8:47 pm-1:00 pm

2 stops36h 13m

Buenos Aires Jorge Newbery

Sun 8/30

3:40 am-12:20 am

2 stops24h 40m

$1,215

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Wed 11/4

8:25 am-10:30 am

2 stops21h 05m

Buenos Aires Jorge Newbery

Tue 11/24

8:05 pm-1:00 pm

2 stops21h 55m

$1,224

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Wed 11/11

7:45 am-1:20 pm

2 stops24h 35m

Buenos Aires Jorge Newbery

Wed 11/25

1:45 pm-8:54 pm

2 stops36h 09m

$1,230
Quickest round-trip

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Mon 11/16

10:00 am-10:30 am

2 stops19h 30m

Buenos Aires Jorge Newbery

Mon 11/30

8:05 pm-12:18 pm

2 stops21h 13m

$1,248

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Sat 8/22

8:47 pm-1:00 pm

2 stops36h 13m

Buenos Aires Jorge Newbery

Sun 8/30

3:40 am-12:20 am

2 stops24h 40m

$1,251

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Thu 10/22

6:55 am-7:40 am

2 stops20h 45m

Buenos Aires Jorge Newbery

Wed 10/28

8:40 am-9:58 pm

2 stops41h 18m

$1,261

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Sun 9/20

11:15 pm-5:40 am

3 stops26h 25m

Buenos Aires Jorge Newbery

Wed 9/30

7:00 am-5:12 pm

3 stops38h 12m

$1,265

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Thu 8/13

7:16 am-7:40 am

2 stops20h 24m

Buenos Aires Jorge Newbery

Wed 8/26

8:05 pm-12:27 pm

2 stops20h 22m

$1,269

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Fri 11/20

7:45 am-3:50 pm

2 stops27h 05m

Buenos Aires Jorge Newbery

Tue 12/1

1:45 pm-8:59 pm

2 stops36h 14m

$1,275

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Thu 10/22

1:45 pm-4:00 pm

2 stops22h 15m

Buenos Aires Jorge Newbery

Tue 11/3

8:05 pm-1:00 pm

2 stops21h 55m

$1,280

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Buenos Aires from

How to get the cheapest flight ticket from State of Washington to Buenos Aires Jorge Newbery Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How long does it take to fly to Buenos Aires Jorge Newbery Airport?

Flight times vary depending on what airport in State of Washington you fly out of and what airport in Buenos Aires Jorge Newbery Airport you fly into. For example, flying from Seattle to Buenos Aires Ministro Pistarini Airport takes 15h 56m on average. On the other hand, flying from Spokane to Buenos Aires Ministro Pistarini Airport takes 16h on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

Cheap State of Washington to Buenos Aires Jorge Newbery Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Buenos Aires Jorge Newbery Airport

Fastest flight time

20h 10m

Direct flights

None
The fastest flight from State of Washington to Buenos Aires Jorge Newbery Airport takes 20h 10m
There are no direct flights from State of Washington to Buenos Aires Jorge Newbery Airport. There are no popular flight routes from State of Washington to Buenos Aires Jorge Newbery Airport.
Search flight deals

Frequently asked questions about flying from Washington to Buenos Aires Jorge Newbery Airport

  • When did momondo last update prices for flights from Washington to Buenos Aires Jorge Newbery Airport?

    Prices for flights from Washington to Buenos Aires Jorge Newbery Airport were last updated today.

  • How old do you have to be to fly from Washington to Buenos Aires Jorge Newbery Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Buenos Aires Jorge Newbery Airport.

  • What documentation or ID do you need to fly to Buenos Aires Jorge Newbery Airport?

    The necessary travel and health documents for your Buenos Aires Jorge Newbery Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Buenos Aires?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington to Buenos Aires for you.

Can I find flights from Washington to Buenos Aires with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Buenos Aires from Washington with this policy.

How can momondo help me find flights from Washington to Buenos Aires?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Buenos Aires.

I’m not ready to book a flight from Washington to Buenos Aires right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington to Buenos Aires now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Buenos Aires and let you know when they change.

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Find better results for your trip to Buenos Aires

Popular cities in Argentina

Popular flights according to clicks in the last 7 days on momondo
Flights to Buenos Aires Ministro Pistarini Airportfrom $533