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Cheap flights from Portland to Buenos Aires from $419

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Buenos Aires departing on 3/29. 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

Enter your travel dates to find the best prices.
LATAM Airlines Logo
5:10 pm - 4:00 pm
PDX
-
AEP
18h 50m
2 stops
LATAM Airlines Logo
5:05 pm - 12:13 pm
AEP
-
PDX
23h 08m
2 stops
$988LATAM Airlines
Mon, Aug 3 - Mon, Aug 17
Multiple Airlines Logo
2:50 pm - 6:30 pm
PDX
-
AEP
23h 40m
2 stops
Multiple Airlines Logo
7:20 pm - 12:28 pm
AEP
-
PDX
21h 08m
2 stops
$994Multiple Airlines
Wed, May 6 - Wed, May 13
LATAM Airlines Logo
6:28 am - 7:40 am
PDX
-
AEP
21h 12m
2 stops
LATAM Airlines Logo
8:05 pm - 12:08 pm
AEP
-
PDX
20h 03m
2 stops
$1,031LATAM Airlines
Wed, Apr 22 - Wed, Apr 29
LATAM Airlines Logo
6:45 am - 7:40 am
PDX
-
AEP
20h 55m
2 stops
LATAM Airlines Logo
3:45 pm - 10:11 am
AEP
-
PDX
22h 26m
2 stops
$1,039LATAM Airlines
Tue, Apr 28 - Wed, May 13
LATAM Airlines Logo
11:40 am - 4:00 pm
PDX
-
AEP
24h 20m
2 stops
LATAM Airlines Logo
8:05 pm - 12:08 pm
AEP
-
PDX
20h 03m
2 stops
$1,047LATAM Airlines
Tue, Apr 7 - Tue, Apr 14
LATAM Airlines Logo
11:20 am - 6:25 pm
PDX
-
AEP
27h 05m
2 stops
LATAM Airlines Logo
6:20 pm - 12:28 pm
AEP
-
PDX
22h 08m
2 stops
$1,087LATAM Airlines
Thu, Apr 30 - Wed, May 13
LATAM Airlines Logo
11:20 am - 2:50 pm
PDX
-
AEP
23h 30m
2 stops
LATAM Airlines Logo
12:55 pm - 12:08 pm
AEP
-
PDX
27h 13m
2 stops
$1,089LATAM Airlines
Thu, Apr 23 - Thu, Apr 30
Multiple Airlines Logo
5:20 am - 2:50 pm
PDX
-
AEP
29h 30m
3 stops
Multiple Airlines Logo
8:40 am - 10:01 am
AEP
-
PDX
29h 21m
2 stops
$1,097Multiple Airlines
Wed, May 6 - Wed, May 13
Multiple Airlines Logo
9:26 pm - 7:40 am
PDX
-
AEP
30h 14m
2 stops
Multiple Airlines Logo
3:45 pm - 8:49 pm
AEP
-
PDX
33h 04m
2 stops
$1,157Multiple Airlines
Sun, Jun 7 - Sun, Jun 21
LATAM Airlines Logo
10:52 am - 9:30 pm
PDX
-
AEP
30h 38m
2 stops
LATAM Airlines Logo
3:45 pm - 10:11 am
AEP
-
PDX
22h 26m
2 stops
$1,171LATAM Airlines
Thu, May 21 - Thu, May 28

LATAM Airlines flights from Portland to Buenos Aires Jorge Newbery Airport

Our best LATAM Airlines deals on Portland to Buenos Aires Jorge Newbery Airport flight tickets
LATAM Airlines
Aug 3
PDX5:10 pmPortland
18h 50m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Aug 17
AEP5:05 pmBuenos Aires Jorge Newbery
23h 08m
2 stops
PDX12:13 pmPortland
$988
LATAM Airlines
Apr 22
PDX6:28 amPortland
21h 12m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
Apr 29
AEP8:05 pmBuenos Aires Jorge Newbery
20h 03m
2 stops
PDX12:08 pmPortland
$1,031
LATAM Airlines
Apr 28
PDX6:45 amPortland
20h 55m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
May 13
AEP3:45 pmBuenos Aires Jorge Newbery
22h 26m
2 stops
PDX10:11 amPortland
$1,039

momondo Fare Finder

 
Customize your flight search to find flights from Portland 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 February 25, 2026.
Use the filters below to find and compare flights from Portland to Buenos Aires Jorge Newbery Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Mon 8/3

5:10 pm-4:00 pm

2 stops18h 50m

Buenos Aires Jorge Newbery

Mon 8/17

5:05 pm-12:13 pm

2 stops23h 08m

$988

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Wed 5/6

2:50 pm-6:30 pm

2 stops23h 40m

Buenos Aires Jorge Newbery

Wed 5/13

7:20 pm-12:28 pm

2 stops21h 08m

$994

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Wed 4/22

6:28 am-7:40 am

2 stops21h 12m

Buenos Aires Jorge Newbery

Wed 4/29

8:05 pm-12:08 pm

2 stops20h 03m

$1,031

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Tue 4/28

6:45 am-7:40 am

2 stops20h 55m

Buenos Aires Jorge Newbery

Wed 5/13

3:45 pm-10:11 am

2 stops22h 26m

$1,039

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Tue 4/7

11:40 am-4:00 pm

2 stops24h 20m

Buenos Aires Jorge Newbery

Tue 4/14

8:05 pm-12:08 pm

2 stops20h 03m

$1,047

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Thu 4/30

11:20 am-6:25 pm

2 stops27h 05m

Buenos Aires Jorge Newbery

Wed 5/13

6:20 pm-12:28 pm

2 stops22h 08m

$1,087

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Thu 4/23

11:20 am-2:50 pm

2 stops23h 30m

Buenos Aires Jorge Newbery

Thu 4/30

12:55 pm-12:08 pm

2 stops27h 13m

$1,089

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Wed 5/6

5:20 am-2:50 pm

3 stops29h 30m

Buenos Aires Jorge Newbery

Wed 5/13

8:40 am-10:01 am

2 stops29h 21m

$1,097

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Sun 6/7

9:26 pm-7:40 am

2 stops30h 14m

Buenos Aires Jorge Newbery

Sun 6/21

3:45 pm-8:49 pm

2 stops33h 04m

$1,157

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

Thu 5/21

10:52 am-9:30 pm

2 stops30h 38m

Buenos Aires Jorge Newbery

Thu 5/28

3:45 pm-10:11 am

2 stops22h 26m

$1,171

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 Portland 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

What is the cheapest airline that flies from Portland to Buenos Aires Jorge Newbery?

LATAM Airlines is the most popular carrier operating from Portland to Buenos Aires Jorge Newbery

When to book flights from Portland to Buenos Aires Jorge Newbery Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Buenos Aires Jorge Newbery Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Buenos Aires Jorge Newbery Airport (PDX to AEP) flight deals and tips

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

Fastest flight time

18h 50m

Direct flights

None
The fastest flight from Portland to Buenos Aires Jorge Newbery Airport takes 18h 50m
There are no direct flights from Portland to Buenos Aires Jorge Newbery Airport. There are no popular flight routes from Portland to Buenos Aires Jorge Newbery Airport.
Search flight deals

  • How far is Portland to Buenos Aires Jorge Newbery by plane?

    The distance between Portland and Buenos Aires Jorge Newbery is about 6826.5 mi. In terms of flight time, this usually takes a little over 18h 50m.

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

    Prices for flights from Portland Airport to Buenos Aires Jorge Newbery Airport refresh daily.

  • How old do you have to be to fly from Portland Airport 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 Portland Airport 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 Portland 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 Portland to Buenos Aires for you.

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

Yes. All flights to Buenos Aires from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Portland to Buenos Aires flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Portland 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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