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Cheap flights from Portland to Buenos Aires from $462

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 6/10. 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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0 bags

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Cheap round-trip flights

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LATAM Airlines Logo
6:30 am - 12:22 pm
PDX
-
EZE
25h 52m
2 stops
LATAM Airlines Logo
8:10 pm - 10:37 am
EZE
-
PDX
18h 27m
1 stop
$1,056LATAM Airlines
Mon, Aug 3 - Wed, Sep 2
Multiple Airlines Logo
5:39 pm - 10:58 pm
PDX
-
EZE
24h 19m
2 stops
Multiple Airlines Logo
10:45 pm - 8:35 pm
EZE
-
PDX
25h 50m
1 stop
$1,077Multiple Airlines
Tue, Mar 3 - Tue, Mar 17
LATAM Airlines Logo
11:00 pm - 8:35 am
PDX
-
EZE
29h 35m
2 stops
LATAM Airlines Logo
11:30 am - 12:13 pm
EZE
-
PDX
28h 43m
2 stops
$1,093LATAM Airlines
Tue, Jun 23 - Mon, Jul 20
LATAM Airlines Logo
11:45 am - 9:45 am
PDX
-
EZE
18h 00m
1 stop
LATAM Airlines Logo
8:10 pm - 1:06 pm
EZE
-
PDX
20h 56m
1 stop
$1,103LATAM Airlines
Thu, Jul 30 - Wed, Sep 2
Multiple Airlines Logo
7:00 am - 9:35 am
PDX
-
EZE
21h 35m
1 stop
Multiple Airlines Logo
2:45 am - 8:44 pm
EZE
-
PDX
21h 59m
2 stops
$1,114Multiple Airlines
Tue, Feb 24 - Mon, Mar 16
Multiple Airlines Logo
7:00 am - 7:50 am
PDX
-
EZE
20h 50m
2 stops
Multiple Airlines Logo
1:20 pm - 8:35 pm
EZE
-
PDX
35h 15m
1 stop
$1,115Multiple Airlines
Mon, Mar 30 - Mon, Apr 6
LATAM Airlines Logo
10:00 am - 12:22 pm
PDX
-
EZE
22h 22m
2 stops
LATAM Airlines Logo
7:21 pm - 12:13 pm
EZE
-
PDX
20h 52m
2 stops
$1,122LATAM Airlines
Tue, Jul 14 - Mon, Jul 27
Multiple Airlines Logo
7:00 am - 9:35 am
PDX
-
EZE
22h 35m
1 stop
Multiple Airlines Logo
7:00 pm - 8:48 pm
EZE
-
PDX
29h 48m
2 stops
$1,123Multiple Airlines
Sun, Mar 8 - Sun, Mar 15
LATAM Airlines Logo
10:00 am - 12:22 pm
PDX
-
EZE
22h 22m
2 stops
LATAM Airlines Logo
4:45 pm - 1:06 pm
EZE
-
PDX
24h 21m
2 stops
$1,131LATAM Airlines
Mon, Aug 3 - Wed, Sep 2
Multiple Airlines Logo
7:00 am - 9:35 am
PDX
-
EZE
21h 35m
1 stop
Multiple Airlines Logo
7:04 pm - 8:35 pm
EZE
-
PDX
53h 31m
2 stops
$1,141Multiple Airlines
Tue, Feb 24 - Sat, Mar 21

LATAM Airlines flights from Portland to Buenos Aires

Our best LATAM Airlines deals on Portland to Buenos Aires flight tickets
LATAM Airlines
Aug 3
PDX6:30 amPortland
25h 52m
2 stops
EZE12:22 pmBuenos Aires Ministro Pistarini
Sep 2
EZE8:10 pmBuenos Aires Ministro Pistarini
18h 27m
1 stop
PDX10:37 amPortland
$1,056
LATAM Airlines
Jun 23
PDX11:00 pmPortland
29h 35m
2 stops
EZE8:35 amBuenos Aires Ministro Pistarini
Jul 20
EZE11:30 amBuenos Aires Ministro Pistarini
28h 43m
2 stops
PDX12:13 pmPortland
$1,093
LATAM Airlines
Jul 30
PDX11:45 amPortland
18h 00m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
Sep 2
EZE8:10 pmBuenos Aires Ministro Pistarini
20h 56m
1 stop
PDX1:06 pmPortland
$1,103

Air Canada flights from Portland to Buenos Aires

Our best Air Canada deals on Portland to Buenos Aires flight tickets
Air Canada
Apr 30
PDX7:05 pmPortland
39h 25m
3 stops
EZE2:30 pmBuenos Aires Ministro Pistarini
May 6
EZE4:35 pmBuenos Aires Ministro Pistarini
44h 55m
3 stops
PDX9:30 amPortland
$1,246
Air Canada
Apr 30
PDX7:05 pmPortland
39h 25m
3 stops
EZE2:30 pmBuenos Aires Ministro Pistarini
May 6
EZE4:35 pmBuenos Aires Ministro Pistarini
44h 55m
3 stops
PDX9:30 amPortland
$1,279
Air Canada
Feb 24
PDX9:50 amPortland
24h 20m
3 stops
EZE3:10 pmBuenos Aires Ministro Pistarini
Mar 16
EZE4:45 pmBuenos Aires Ministro Pistarini
68h 30m
3 stops
PDX9:15 amPortland
$1,474

momondo Fare Finder

 
Customize your flight search to find flights from Portland 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, momondo users made 832,500 searches. Data last updated February 13, 2026.
Use the filters below to find and compare flights from Portland to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Mon 8/3

6:30 am-12:22 pm

2 stops25h 52m

Buenos Aires Ministro Pistarini

Wed 9/2

8:10 pm-10:37 am

1 stop18h 27m

$1,056

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Tue 3/3

5:39 pm-10:58 pm

2 stops24h 19m

Buenos Aires Ministro Pistarini

Tue 3/17

10:45 pm-8:35 pm

1 stop25h 50m

$1,077

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Tue 6/23

11:00 pm-8:35 am

2 stops29h 35m

Buenos Aires Ministro Pistarini

Mon 7/20

11:30 am-12:13 pm

2 stops28h 43m

$1,093

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Thu 7/30

11:45 am-9:45 am

1 stop18h 00m

Buenos Aires Ministro Pistarini

Wed 9/2

8:10 pm-1:06 pm

1 stop20h 56m

$1,103

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Tue 2/24

7:00 am-9:35 am

1 stop21h 35m

Buenos Aires Ministro Pistarini

Mon 3/16

2:45 am-8:44 pm

2 stops21h 59m

$1,114

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Mon 3/30

7:00 am-7:50 am

2 stops20h 50m

Buenos Aires Ministro Pistarini

Mon 4/6

1:20 pm-8:35 pm

1 stop35h 15m

$1,115

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Tue 7/14

10:00 am-12:22 pm

2 stops22h 22m

Buenos Aires Ministro Pistarini

Mon 7/27

7:21 pm-12:13 pm

2 stops20h 52m

$1,122

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Sun 3/8

7:00 am-9:35 am

1 stop22h 35m

Buenos Aires Ministro Pistarini

Sun 3/15

7:00 pm-8:48 pm

2 stops29h 48m

$1,123

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Mon 8/3

10:00 am-12:22 pm

2 stops22h 22m

Buenos Aires Ministro Pistarini

Wed 9/2

4:45 pm-1:06 pm

2 stops24h 21m

$1,131

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

Tue 2/24

7:00 am-9:35 am

1 stop21h 35m

Buenos Aires Ministro Pistarini

Sat 3/21

7:04 pm-8:35 pm

2 stops53h 31m

$1,141

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

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 typical price of a round-trip flight between Portland and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Portland is in October. Flight prices, which tend to average around $1,200, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Buenos Aires from Portland during January instead. Flights to Buenos Aires in January, while not as cheap as those in October, still average around $1,205.

Can stopping save me money on Portland to Buenos Aires flights?

You could potentially save up to 10% on your flight if you consider stops on a Portland to Buenos Aires flight.

When to book flights from Portland to Buenos Aires

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

Cheap Portland to Buenos Aires (PDX to BUE) flight deals and tips

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

Fastest flight time

18h 00m

Direct flights

None
The fastest flight from Portland to Buenos Aires takes 18h 00m
There are no direct flights from Portland to Buenos Aires. There are no popular flight routes from Portland to Buenos Aires.
Search flight deals

  • How far is Portland to Buenos Aires by plane?

    Portland and Buenos Aires are 6830.7 mi apart from one another. By plane, this route typically takes 18h 00m.

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

    Prices for flights from Portland Airport to Buenos Aires are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to Buenos Aires?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Buenos Aires.

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

    The travel and health documents you'll need for your trip to Buenos Aires may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buenos Aires. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Portland to Buenos Aires?

Best airlines flying from Portland to Buenos Aires

Compare and see reviews for airlines that fly from Portland to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $826Free CancellationRating
7.2
11,288 reviews
Search American Airlines flights
United AirlinesPriceFrom $971Free CancellationRating
7.4
9,289 reviews
Search United Airlines flights
DeltaPriceFrom $1,081Free CancellationRating
7.9
8,203 reviews
Search Delta flights
LATAM AirlinesPriceFrom $1,125Free CancellationRating
7.5
1,920 reviews
Search LATAM Airlines flights

Why use momondo?

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

Finding the right flight to Buenos Aires from Portland 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 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?

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 Portland to Buenos Aires.

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

If you are not ready to book a flight from Portland 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 Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport