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Cheap flights from Washington to Buenos Aires from $359

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 9/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Logo
8:25 am - 7:15 pmSEA-EZE
30h 50m1 stop
Logo
8:00 am - 10:33 pmEZE-SEA
18h 33m1 stop
$961
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Tue, Sep 30 - Tue, Oct 7
Logo
7:03 am - 2:30 amPDX-EZE
39h 27m2 stops
Logo
3:55 am - 9:30 amEZE-PDX
33h 35m2 stops
$974
Find Deal
Mon, Sep 29 - Sun, Oct 5
LATAM Airlines Logo
2:10 pm - 1:55 pmPDX-EZE
19h 45m2 stops
LATAM Airlines Logo
7:43 pm - 11:54 amEZE-PDX
21h 11m2 stops
$1,094LATAM Airlines
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Tue, Oct 21 - Tue, Nov 11
Delta Logo
6:04 am - 9:00 amPDX-EZE
21h 56m1 stop
Delta Logo
11:55 pm - 7:08 pmEZE-PDX
24h 13m1 stop
$1,116Delta
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Mon, Dec 8 - Mon, Dec 15
LATAM Airlines Logo
6:00 am - 6:10 amPDX-EZE
20h 10m2 stops
LATAM Airlines Logo
7:43 pm - 11:45 amEZE-PDX
21h 02m2 stops
$1,118LATAM Airlines
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Mon, Oct 13 - Mon, Nov 3
Delta Logo
2:10 pm - 9:45 amPDX-EZE
15h 35m1 stop
Delta Logo
8:55 pm - 10:56 amEZE-PDX
19h 01m1 stop
$1,125Delta
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Mon, Oct 20 - Tue, Nov 11
Copa Airlines Logo
12:41 pm - 10:31 pmSEA-EZE
28h 50m2 stops
Copa Airlines Logo
3:57 am - 11:39 amEZE-SEA
36h 42m2 stops
$1,130Copa Airlines
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Wed, Nov 5 - Tue, Nov 18
United Airlines Logo
11:55 pm - 8:00 amPDX-EZE
28h 05m1 stop
United Airlines Logo
11:55 pm - 10:51 pmEZE-PDX
27h 56m2 stops
$1,140United Airlines
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Sun, Oct 19 - Thu, Nov 13
United Airlines Logo
11:59 pm - 7:20 amPDX-EZE
26h 21m2 stops
United Airlines Logo
11:55 pm - 12:12 pmEZE-PDX
17h 17m1 stop
$1,156United Airlines
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Sun, Dec 7 - Sun, Dec 14
Copa Airlines Logo
7:37 pm - 3:50 amSEA-EZE
28h 13m2 stops
Copa Airlines Logo
2:32 pm - 9:53 pmEZE-SEA
35h 21m2 stops
$1,158Copa Airlines
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Tue, Sep 30 - Tue, Oct 7

LATAM Airlines flights from State of Washington to Buenos Aires Ministro Pistarini Airport

Our best LATAM Airlines deals on State of Washington to Buenos Aires Ministro Pistarini Airport flight tickets
LATAM Airlines
Oct 21
PDX2:10 pmPortland
19h 45m
2 stops
EZE1:55 pmBuenos Aires Ministro Pistarini
Nov 11
EZE7:43 pmBuenos Aires Ministro Pistarini
21h 11m
2 stops
PDX11:54 amPortland
$1,094
Find similar
LATAM Airlines
Oct 13
PDX6:00 amPortland
20h 10m
2 stops
EZE6:10 amBuenos Aires Ministro Pistarini
Nov 3
EZE7:43 pmBuenos Aires Ministro Pistarini
21h 02m
2 stops
PDX11:45 amPortland
$1,118
Find similar
LATAM Airlines
Dec 31
PDX6:00 amPortland
19h 20m
2 stops
EZE6:20 amBuenos Aires Ministro Pistarini
Feb 17
EZE7:45 amBuenos Aires Ministro Pistarini
40h 33m
3 stops
PDX7:18 pmPortland
$1,128
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Delta flights from State of Washington to Buenos Aires Ministro Pistarini Airport

Our best Delta deals on State of Washington to Buenos Aires Ministro Pistarini Airport flight tickets
Delta
Dec 8
PDX6:04 amPortland
21h 56m
1 stop
EZE9:00 amBuenos Aires Ministro Pistarini
Dec 15
EZE11:55 pmBuenos Aires Ministro Pistarini
24h 13m
1 stop
PDX7:08 pmPortland
$1,116
Find similar
Delta
Oct 20
PDX2:10 pmPortland
15h 35m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
Nov 11
EZE8:55 pmBuenos Aires Ministro Pistarini
19h 01m
1 stop
PDX10:56 amPortland
$1,125
Find similar
Delta
Oct 22
PDX5:40 amPortland
24h 05m
2 stops
EZE9:45 amBuenos Aires Ministro Pistarini
Nov 13
EZE8:55 pmBuenos Aires Ministro Pistarini
19h 01m
1 stop
PDX10:56 amPortland
$1,130
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Buenos Aires Ministro Pistarini 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 August 17, 2025.
Use the filters below to find and compare flights from Washington to Buenos Aires Ministro Pistarini Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 9/30

8:25 am-7:15 pm

1 stop30h 50m

Buenos Aires Ministro Pistarini

Tue 10/7

8:00 am-10:33 pm

1 stop18h 33m

$961

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Mon 9/29

7:03 am-2:30 am

2 stops39h 27m

Buenos Aires Ministro Pistarini

Sun 10/5

3:55 am-9:30 am

2 stops33h 35m

$974

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Tue 10/21

2:10 pm-1:55 pm

2 stops19h 45m

Buenos Aires Ministro Pistarini

Tue 11/11

7:43 pm-11:54 am

2 stops21h 11m

$1,094

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Mon 12/8

6:04 am-9:00 am

1 stop21h 56m

Buenos Aires Ministro Pistarini

Mon 12/15

11:55 pm-7:08 pm

1 stop24h 13m

$1,116

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Mon 10/13

6:00 am-6:10 am

2 stops20h 10m

Buenos Aires Ministro Pistarini

Mon 11/3

7:43 pm-11:45 am

2 stops21h 02m

$1,118

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Mon 10/20

2:10 pm-9:45 am

1 stop15h 35m

Buenos Aires Ministro Pistarini

Tue 11/11

8:55 pm-10:56 am

1 stop19h 01m

$1,125

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Wed 11/5

12:41 pm-10:31 pm

2 stops28h 50m

Buenos Aires Ministro Pistarini

Tue 11/18

3:57 am-11:39 am

2 stops36h 42m

$1,130

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Sun 10/19

11:55 pm-8:00 am

1 stop28h 05m

Buenos Aires Ministro Pistarini

Thu 11/13

11:55 pm-10:51 pm

2 stops27h 56m

$1,140

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Sun 12/7

11:59 pm-7:20 am

2 stops26h 21m

Buenos Aires Ministro Pistarini

Sun 12/14

11:55 pm-12:12 pm

1 stop17h 17m

$1,156

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 9/30

7:37 pm-3:50 am

2 stops28h 13m

Buenos Aires Ministro Pistarini

Tue 10/7

2:32 pm-9:53 pm

2 stops35h 21m

$1,158

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from State of Washington to Buenos Aires Ministro Pistarini 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

What is the cheapest month to fly to Buenos Aires Ministro Pistarini Airport?

If you aren’t able to travel during the month of November, then book flights to Buenos Aires Ministro Pistarini Airport from State of Washington during March instead. Flights to Buenos Aires Ministro Pistarini Airport in March, while not as cheap as those in November, still average around $1,223.

What is the cheapest day to depart on your flight to Buenos Aires Ministro Pistarini Airport?

Our data shows that Wednesday is the least expensive day to fly to Buenos Aires Ministro Pistarini Airport. Tickets to fly out on this day can be as low as $1,287. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires Ministro Pistarini Airport on Saturday is $1,569.

What is the cheapest time of day to depart on your flight to Buenos Aires Ministro Pistarini Airport?

According to our data, the cheapest time of day to fly to Buenos Aires Ministro Pistarini Airport is at noon. momondo users have found flights departing from State of Washington to Buenos Aires Ministro Pistarini Airport at noon for as low as $1,303. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,629 on average. Flights to Buenos Aires Ministro Pistarini Airport from State of Washington in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Buenos Aires Ministro Pistarini Airport?

You are more likely to see cheaper flights to Buenos Aires Ministro Pistarini Airport from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires Ministro Pistarini Airport for around $1,373 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires Ministro Pistarini Airport from State of Washington for as low as $1,197 on momondo.

Cheap State of Washington to Buenos Aires Ministro Pistarini Airport flight deals and tips

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

Best Price Found

$359

Fastest flight time

15h 05m

Direct flights

None
The best one-way flight to Buenos Aires Ministro Pistarini Airport from State of Washington in the past 72 hours is $359. The best round-trip flight deal from State of Washington to Buenos Aires Ministro Pistarini Airport found on momondo in the last 72 hours is $961.
The fastest flight from State of Washington to Buenos Aires Ministro Pistarini Airport takes 15h 05m
There are no direct flights from State of Washington to Buenos Aires Ministro Pistarini Airport. Popular non-direct routes for this connection are Portland Airport - Buenos Aires Ministro Pistarini Airport and Seattle/Tacoma Intl Airport - Buenos Aires Ministro Pistarini Airport.
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  • When did momondo last update prices for flights from Washington to Buenos Aires Ministro Pistarini Airport?

    Prices for flights from Washington to Buenos Aires Ministro Pistarini Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington to Buenos Aires Ministro Pistarini Airport?

  • How old do you have to be to fly from Washington to Buenos Aires Ministro Pistarini Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Buenos Aires Ministro Pistarini Airport.

  • What documentation or ID do you need to fly to Buenos Aires Ministro Pistarini Airport?

    The travel and health documents required for your trip to Buenos Aires Ministro Pistarini Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires Ministro Pistarini Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from State of Washington to Buenos Aires Ministro Pistarini Airport

Compare and see reviews for airlines that fly from State of Washington to Buenos Aires Ministro Pistarini Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $1,100Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $1,133Free CancellationRating
8.0
7,986 reviews
Search Delta flights
United AirlinesPriceFrom $1,200Free CancellationRating
7.4
8,919 reviews
Search United Airlines flights

Why use momondo?

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

Finding the right flight to Buenos Aires from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

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 helps you find the best flight between Washington and Buenos Aires by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Washington to Buenos Aires flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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