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$544+ Cheap flights from Portland (PDX) to Buenos Aires (BUE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BUE
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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The best prices from Portland to Buenos Aires are usually found in August or May, booked 78 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

Cheap flight deals from Portland to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,125
(Delta)

One-way from

$544
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$1,443
Provider with most accurate pricing for Portland-Buenos Aires (BUE) flight deals.
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Provider most trusted by Cheapflights users for Portland-Buenos Aires (BUE) flights.
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From Portland to Buenos Aires (BUE)
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One-way flight from Portland to Buenos Aires (BUE)
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Highest demand for flights based on searches. 7% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Portland to Buenos Aires

Cheapest flights from Portland to Buenos Aires
Explore the most affordable flight options available from Portland to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1011:45 amPDX - EZE
1 stop18h 00mDelta
jue. 9/258:10 pmEZE - PDX
1 stop18h 29mDelta
Deal found 2/20$1,125
This LATAM Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/16:00 amPDX - AEP
2 stops28h 40mLATAM Airlines
mié. 10/159:05 pmAEP - PDX
3 stops30h 54mLATAM Airlines
Deal found 2/19$1,125
This American Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/15:54 amPDX - EZE
2 stops23h 06mAmerican Airlines
mié. 10/158:30 pmEZE - PDX
1 stop30h 30mAmerican Airlines
Deal found 2/19$1,149
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/311:59 pmPDX - EZE
2 stops52h 01mUnited Airlines
mar. 5/139:00 pmEZE - PDX
2 stops29h 53mUnited Airlines
Deal found 2/20$1,153
This LATAM Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/37:30 amPDX - EZE
2 stops24h 18mLATAM Airlines
dom. 7/137:13 pmEZE - PDX
2 stops20h 29mLATAM Airlines
Deal found 2/18$1,205
This Aeromexico deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/316:05 amPDX - EZE
2 stops35h 20mAeromexico
lun. 4/711:25 pmEZE - PDX
2 stops20h 28mAeromexico
Deal found 2/18$1,253
This Expedia deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/210:10 amPDX - EZE
3 stops24h 15mMultiple Airlines
jue. 11/131:45 amEZE - PDX
2 stops47h 30mMultiple Airlines
Deal found 2/19$1,334
This Gotogate deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/113:25 pmPDX - EZE
3 stops67h 05mAir Canada
jue. 4/244:35 pmEZE - PDX
3 stops45h 00mAir Canada
Deal found 2/18$1,336
This Copa Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/13:45 pmPDX - EZE
2 stops29h 13mCopa Airlines
mié. 4/92:20 amEZE - PDX
2 stops26h 10mCopa Airlines
Deal found 2/19$1,358
This Mytrip deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/116:05 pmPDX - AEP
3 stops28h 15mMultiple Airlines
mié. 4/2312:05 amAEP - PDX
3 stops27h 37mMultiple Airlines
Deal found 2/18$1,362
This Delta deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/312:34 pmPDX - AEP
2 stops25h 46mDelta
sáb. 4/1211:40 amAEP - PDX
2 stops59h 23mDelta
Deal found 2/18$1,847

Find flights from Portland to Buenos Aires within your budget

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, Cheapflights users made 2,558,603 searches. Data last updated febrero 20, 2025.

Fly from

Portland

Fly to

Buenos Aires

Route

Depart

Return

Price

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

sáb. 5/3

11:59 pm-8:00 am

2 stops52h 01m

Buenos Aires Ministro Pistarini

mar. 5/13

9:00 pm-10:53 pm

2 stops29h 53m

$1,153

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

vie. 4/11

11:00 pm-9:45 am

1 stop30h 45m

Buenos Aires Ministro Pistarini

jue. 4/24

8:10 pm-7:03 pm

1 stop26h 53m

$1,213

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

jue. 4/24

7:00 am-5:00 pm

2 stops30h 00m

Buenos Aires Jorge Newbery

dom. 5/11

10:35 am-11:48 am

2 stops29h 13m

$1,224

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

jue. 4/24

7:00 am-6:13 pm

2 stops31h 13m

Buenos Aires Ministro Pistarini

dom. 5/4

12:48 pm-11:58 am

2 stops27h 10m

$1,251

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

lun. 3/31

6:05 am-9:25 pm

2 stops35h 20m

Buenos Aires Ministro Pistarini

lun. 4/7

11:25 pm-3:53 pm

2 stops20h 28m

$1,253

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

vie. 4/11

3:25 pm-2:30 pm

3 stops67h 05m

Buenos Aires Ministro Pistarini

jue. 4/24

4:35 pm-9:35 am

3 stops45h 00m

$1,336

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

mar. 4/1

3:45 pm-12:58 am

2 stops29h 13m

Buenos Aires Ministro Pistarini

mié. 4/9

2:20 am-12:30 am

2 stops26h 10m

$1,358

PortlandBuenos Aires

PDX - AEP

PDXAEP

Portland

vie. 4/11

6:05 pm-2:20 am

3 stops28h 15m

Buenos Aires Jorge Newbery

mié. 4/23

12:05 am-11:42 pm

3 stops27h 37m

$1,362

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

mié. 4/2

10:06 am-7:15 pm

1 stop29h 09m

Buenos Aires Ministro Pistarini

mar. 4/8

2:45 pm-10:26 pm

2 stops35h 41m

$1,408

PortlandBuenos Aires

PDX - EZE

PDXEZE

Portland

mar. 4/1

10:19 pm-7:20 am

1 stop29h 01m

Buenos Aires Ministro Pistarini

mar. 4/8

10:15 pm-11:28 pm

1 stop29h 13m

$1,603

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 17 results
1
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Compare providers for flights from Portland to Buenos Aires

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Buenos Aires in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Buenos Aires flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Buenos Aires flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Buenos Aires flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Buenos Aires flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Buenos Aires flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Portland to Buenos Aires

Get recent, data-driven insights about flights from Portland to Buenos Aires including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Portland to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Buenos Aires. Price data was last updated on February 14, 2025.

To ensure you get the cheapest price possible for a flight from Portland to Buenos Aires, you should look to book at least 78 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Portland to Buenos Aires?

Currently, April is the cheapest month in which you can book a flight from Portland to Buenos Aires (average of $795). Flying from Portland to Buenos Aires in December is currently the most expensive (average of $1,260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to BUE?

Find hourly flight availability from Portland to Buenos Aires. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

It’s typically best to fly out from Portland to Buenos Aires in the afternoon. Doing so could potentially save you 23% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buenos Aires ranges from 2.0 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. June is typically the driest time to visit Buenos Aires when rainfall is around 2.0 in.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated febrero 20, 2025.
Read through reviews of airlines operating flights from Portland to Buenos Aires, such as Delta, Copa Airlines and LATAM Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Copa Airlines
7.6
Good
1,510 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

LATAM Airlines
7.5
Good
1,795 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aeromexico
7.5
Good
1,771 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,765 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Portland to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Buenos Aires?

    Most people fly from Portland (PDX) if they book a flight from Portland to Buenos Aires. On average, Portland has 0 outbound flights to Buenos Aires per day from 4 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.

  • What are the cheapest airlines flying from Portland to Buenos Aires round-trip?

    Delta, at $1,125, was found to be the cheapest airline from Portland to Buenos Aires.Alternate airlines to your destination round-trip include LATAM Airlines and United Airlines. Delta is 14% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Portland to Buenos Aires one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $596. Aeromexico flights start at $694 while deals on Delta start at $779 one-way.

  • Can I find deals for flights from Portland to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on Portland to Buenos Aires flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Buenos Aires?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Buenos Aires.

  • Can I find deals for business class flights from Portland to Buenos Aires?

    Yes. Cheapflights offers flight deals from Portland to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from Portland to Buenos Aires (average of $795). Flying from Portland to Buenos Aires in December is currently the most expensive (average of $1,260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Portland to Buenos Aires

Discover the top 4 airlines that operate flights from Portland to Buenos Aires. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$1,060Average$1,290FlexibilityNo cancel feeOn-time71%
LATAM AirlinesCheapest$1,077Average$1,292FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,077Average$1,164FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$1,128Average$1,441FlexibilityNo cancel feeOn-time69%
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