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

United Airlines is the most popular carrier operating from Portland to Buenos Aires

Which layover airport offers the lowest fares from Portland to Buenos Aires?

Flights via Atlanta (ATL) offer the lowest average round-trip price of $901.

Which layover airport has the shortest connection time from Portland to Buenos Aires?

Atlanta (ATL) has the shortest average layover time for this route: 2h 03m.

What airlines fly to Buenos Aires?

American Airlines, LATAM Airlines and United Airlines are the top three most popular airlines that fly to Buenos Aires from Portland according to our data. American Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Buenos Aires. Keep in mind that there are 4 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Portland to Buenos Aires?

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 15h 19m.

Which airport is the most popular layover for flights between Portland and Buenos Aires?

Houston (IAH) was the most common stop: 70% of momondo users choosing 1-stop flights on this route connected there.

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?

The number of operators available for flights from Portland Airport to Buenos Aires is 4 as of August 2026.

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.

$479 Cheap Flights from Portland to Buenos Aires in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Buenos Aires

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One-way

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Enter your travel dates to find the best prices.

6:10 pm - 3:45 amPDX Portland-EZE Buenos Aires Ministro Pistarini

29h 35m3 stops Minneapolis St Paul Miami Punta Cana

9:15 pm - 8:50 pmEZE Buenos Aires Ministro Pistarini-PDX Portland

28h 35m3 stops Punta Cana Mexico City Felipe Ángeles Intl Guadalajara Miguel Hidal

$1,147Multiple Airlines

Fri, Oct 30 - Wed, Nov 11

9:35 pm - 3:00 amPDX Portland-EZE Buenos Aires Ministro Pistarini

24h 25m2 stops Newark Punta Cana

10:45 pm - 8:50 pmEZE Buenos Aires Ministro Pistarini-PDX Portland

27h 05m1 stop Miami

$1,163Multiple Airlines

Wed, Dec 2 - Tue, Dec 15

6:08 am - 9:40 amPDX Portland-EZE Buenos Aires Ministro Pistarini

23h 32m2 stops Los Angeles Miami

8:10 pm - 1:38 pmEZE Buenos Aires Ministro Pistarini-PDX Portland

21h 28m1 stop Atlanta Hartsfield-Jackson

$1,217LATAM Airlines

Wed, Sep 30 - Wed, Oct 14

6:08 am - 9:40 amPDX Portland-EZE Buenos Aires Ministro Pistarini

23h 32m2 stops Los Angeles Miami

1:10 pm - 1:38 pmEZE Buenos Aires Ministro Pistarini-PDX Portland

28h 28m2 stops Miami Atlanta Hartsfield-Jackson

$1,217LATAM Airlines

Wed, Sep 30 - Wed, Oct 14

10:57 pm - 9:40 amPDX Portland-EZE Buenos Aires Ministro Pistarini

30h 43m2 stops Atlanta Hartsfield-Jackson Miami

8:10 pm - 10:42 amEZE Buenos Aires Ministro Pistarini-PDX Portland

18h 32m1 stop Atlanta Hartsfield-Jackson

$1,239Delta

Sun, Oct 4 - Tue, Oct 20

8:29 pm - 6:10 amPDX Portland-EZE Buenos Aires Ministro Pistarini

29h 41m2 stops Los Angeles Lima J Chavez Intl

8:10 pm - 12:38 pmEZE Buenos Aires Ministro Pistarini-PDX Portland

20h 28m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

$1,239Delta

Sun, Oct 4 - Tue, Oct 20

6:28 am - 8:30 amPDX Portland-EZE Buenos Aires Ministro Pistarini

21h 02m1 stop Dallas/Fort Worth

10:30 pm - 7:42 pmEZE Buenos Aires Ministro Pistarini-PDX Portland

26h 12m1 stop Dallas/Fort Worth

$1,248American Airlines

Mon, Feb 1 - Mon, Feb 15

5:25 am - 8:30 amPDX Portland-EZE Buenos Aires Ministro Pistarini

22h 05m1 stop Dallas/Fort Worth

10:30 pm - 5:51 pmEZE Buenos Aires Ministro Pistarini-PDX Portland

24h 21m1 stop Dallas/Fort Worth

$1,248American Airlines

Thu, Jan 21 - Sun, Jan 31

12:54 pm - 9:20 amPDX Portland-EZE Buenos Aires Ministro Pistarini

15h 26m1 stop Houston George Bush Intcntl

10:05 pm - 12:13 pmEZE Buenos Aires Ministro Pistarini-PDX Portland

19h 08m1 stop Houston George Bush Intcntl

$1,248United Airlines

Tue, Nov 17 - Wed, Dec 9

7:10 am - 9:20 amPDX Portland-EZE Buenos Aires Ministro Pistarini

21h 10m1 stop Houston George Bush Intcntl

11:55 pm - 12:17 pmEZE Buenos Aires Ministro Pistarini-PDX Portland

17h 22m1 stop Houston George Bush Intcntl

$1,248United Airlines

Tue, Feb 9 - Wed, Feb 17

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LATAM Airlines flights from Portland to Buenos Aires

Our best LATAM Airlines deals on Portland to Buenos Aires flight tickets

LATAM Airlines

Sep 30

PDX6:08 amPortland

23h 32m

2 stops

EZE9:40 amBuenos Aires Ministro Pistarini

Oct 14

EZE1:10 pmBuenos Aires Ministro Pistarini

28h 28m

2 stops

PDX1:38 pmPortland

$1,217

LATAM Airlines

Nov 16

PDX6:50 amPortland

21h 50m

1 stop

EZE9:40 amBuenos Aires Ministro Pistarini

Nov 30

EZE12:50 pmBuenos Aires Ministro Pistarini

28h 20m

2 stops

PDX12:10 pmPortland

$1,248

LATAM Airlines

Oct 7

PDX6:50 amPortland

22h 50m

2 stops

EZE9:40 amBuenos Aires Ministro Pistarini

Oct 15

EZE8:10 pmBuenos Aires Ministro Pistarini

26h 59m

1 stop

PDX7:09 pmPortland

$1,252

Delta flights from Portland to Buenos Aires

Our best Delta deals on Portland to Buenos Aires flight tickets

Delta

Oct 4

PDX10:57 pmPortland

30h 43m

2 stops

EZE9:40 amBuenos Aires Ministro Pistarini

Oct 20

EZE8:10 pmBuenos Aires Ministro Pistarini

18h 32m

1 stop

PDX10:42 amPortland

$1,239

Delta

Oct 4

PDX6:08 amPortland

21h 32m

2 stops

AEP7:40 amBuenos Aires Jorge Newbery

Oct 20

AEP8:05 pmBuenos Aires Jorge Newbery

21h 33m

2 stops

PDX1:38 pmPortland

$1,278

Delta

Feb 8

PDX6:04 amPortland

20h 36m

2 stops

AEP7:40 amBuenos Aires Jorge Newbery

Feb 19

AEP5:35 pmBuenos Aires Jorge Newbery

23h 43m

2 stops

PDX12:18 pmPortland

$1,288

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBuenos Aires

PDX Portland - EZE Buenos Aires Ministro Pistarini

PDXEZE

Portland

Fri 10/30

6:10 pm-3:45 am

3 stops29h 35m

Buenos Aires Ministro Pistarini

Wed 11/11

9:15 pm-8:50 pm

3 stops28h 35m

$1,147

PortlandBuenos Aires

PDX Portland - EZE Buenos Aires Ministro Pistarini

PDXEZE

Portland

Wed 12/2

9:35 pm-3:00 am

2 stops24h 25m

Buenos Aires Ministro Pistarini

Tue 12/15

10:45 pm-8:50 pm

1 stop27h 05m

$1,163

PortlandBuenos Aires

PDX Portland - EZE Buenos Aires Ministro Pistarini

PDXEZE

Portland

Wed 9/30

6:08 am-9:40 am

2 stops23h 32m

Buenos Aires Ministro Pistarini

Wed 10/14

8:10 pm-1:38 pm

1 stop21h 28m

$1,217

PortlandBuenos Aires

PDX Portland - EZE Buenos Aires Ministro Pistarini

PDXEZE

Portland

Wed 9/30

6:08 am-9:40 am

2 stops23h 32m

Buenos Aires Ministro Pistarini

Wed 10/14

1:10 pm-1:38 pm

2 stops28h 28m

$1,217

PortlandBuenos Aires

PDX Portland - EZE Buenos Aires Ministro Pistarini

PDXEZE

Portland

Sun 10/4

10:57 pm-9:40 am

2 stops30h 43m

Buenos Aires Ministro Pistarini

Tue 10/20

8:10 pm-10:42 am

1 stop18h 32m

$1,239

PortlandBuenos Aires

PDX Portland - EZE Buenos Aires Ministro Pistarini

PDXEZE

Portland

Sun 10/4

8:29 pm-6:10 am

2 stops29h 41m

Buenos Aires Ministro Pistarini

Tue 10/20

8:10 pm-12:38 pm

2 stops20h 28m

$1,239

PortlandBuenos Aires

PDX Portland - EZE Buenos Aires Ministro Pistarini

PDXEZE

Portland

Mon 2/1

6:28 am-8:30 am

1 stop21h 02m

Buenos Aires Ministro Pistarini

Mon 2/15

10:30 pm-7:42 pm

1 stop26h 12m

$1,248

PortlandBuenos Aires

PDX Portland - EZE Buenos Aires Ministro Pistarini

PDXEZE

Portland

Thu 1/21

5:25 am-8:30 am

1 stop22h 05m

Buenos Aires Ministro Pistarini

Sun 1/31

10:30 pm-5:51 pm

1 stop24h 21m

$1,248

Quickest round-trip

PortlandBuenos Aires

PDX Portland - EZE Buenos Aires Ministro Pistarini

PDXEZE

Portland

Tue 11/17

12:54 pm-9:20 am

1 stop15h 26m

Buenos Aires Ministro Pistarini

Wed 12/9

10:05 pm-12:13 pm

1 stop19h 08m

$1,248

PortlandBuenos Aires

PDX Portland - EZE Buenos Aires Ministro Pistarini

PDXEZE

Portland

Tue 2/9

7:10 am-9:20 am

1 stop21h 10m

Buenos Aires Ministro Pistarini

Wed 2/17

11:55 pm-12:17 pm

1 stop17h 22m

$1,248

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

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

Prices are currently low for flights on this route.

Typical prices usually range from $1,154 to $1,247.
The lowest price recently found on this route was $1,147.

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Portland is in April. Flight prices, which tend to average around $1,181, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Buenos Aires from Portland during August instead. Flights to Buenos Aires in August, while not as cheap as those in April, still average around $1,201.

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

You could potentially save up to 40% 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	15h 05m
Direct flights	None

The fastest flight from Portland to Buenos Aires takes 15h 05m

There are no direct flights from Portland to Buenos Aires. There are no popular flight routes from Portland to Buenos Aires.

Search flight deals

Frequently asked questions about flying from Portland to Buenos Aires

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 15h 05m.
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?
The number of operators available for flights from Portland Airport to Buenos Aires is 4 as of August 2026.
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?
momondo data reveals that the most frequently booked airline on the route from Portland to Buenos Aires is Delta, representing 37% of all bookings. The subsequent popular airlines are LATAM Airlines at 27%, American Airlines at 19%, and United Airlines at 18%.

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
Delta	PriceFrom $901	Free Cancellation	Rating 7.8 8,508 reviews	Search Delta flights
United Airlines	PriceFrom $951	Free Cancellation	Rating 7.4 10,110 reviews	Search United Airlines flights
American Airlines	PriceFrom $1,009	Free Cancellation	Rating 7.1 11,941 reviews	Search American Airlines flights
LATAM Airlines	PriceFrom $1,182	Free Cancellation	Rating 7.4 1,980 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.

An easier way to manage your Buenos Aires trip

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Fly into one of these airports located in Buenos Aires

Buenos Aires Jorge Newbery Airport

Buenos Aires Ministro Pistarini Airport

Cheap flights from Portland to Buenos Aires from $479

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 9/27. 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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LATAM Airlines flights from Portland to Buenos Aires

Our best LATAM Airlines deals on Portland to Buenos Aires flight tickets

Delta flights from Portland to Buenos Aires

Our best Delta deals on Portland to Buenos Aires flight tickets

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How to get the cheapest flight ticket from Portland to Buenos Aires

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?

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

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

What airlines fly to Buenos Aires?

Which airport is the most popular layover for flights between Portland and Buenos Aires?

Which layover airport offers the lowest fares from Portland to Buenos Aires?

Which layover airport has the shortest travel time from Portland to Buenos Aires?

Which layover airport has the shortest connection time from Portland to Buenos Aires?

When to book flights from Portland to Buenos Aires

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

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Why use momondo?

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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

Fly your favorite airline to Buenos Aires

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Buenos Aires

List of cabin classes available on flights landing in Buenos Aires. Availability may vary depending on flight origin and airline.

Popular cities in Argentina

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Portland

According to popular flight searches on momondo this year

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