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$321+ Cheap flights from Philadelphia (PHL) 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BUE
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Philadelphia to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) 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 September 17, 2025.

Round-trip from

$789
(Mytrip)

One-way from

$321
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,557
From Philadelphia to Buenos Aires (BUE)
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One-way flight from Philadelphia to Buenos Aires (BUE)
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Highest demand for flights based on searches. 0% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Philadelphia to Buenos Aires

Cheapest flights from Philadelphia to Buenos Aires
Explore the most affordable flight options available from Philadelphia to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Mytrip deal was found by Cheapflights users on 9/17. 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.
Sun 12/79:11 pmPHL - AEP
2 stops32h 19mMultiple Airlines
Wed 12/107:00 amAEP - PHL
3 stops27h 47mMultiple Airlines
Deal found 9/17$789
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Mon 10/137:54 pmPHL - EZE
3 stops41h 01mMultiple Airlines
Sun 10/192:30 amEZE - PHL
3 stops22h 29mMultiple Airlines
Deal found 9/15$799
This Avianca Connect deal was found by Cheapflights users on 9/15. 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 Avianca Connect is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:33 amPHL - EZE
2 stops23h 17mMultiple Airlines
Thu 11/64:55 pmEZE - PHL
2 stops17h 55mMultiple Airlines
Deal found 9/15$817
This Avianca Connect deal was found by Cheapflights users on 9/15. 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 Avianca Connect is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:33 amPHL - EZE
2 stops23h 17mMultiple Airlines
Fri 11/74:55 pmEZE - PHL
2 stops17h 55mMultiple Airlines
Deal found 9/15$818
This Avianca Connect deal was found by Cheapflights users on 9/15. 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 Avianca Connect is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/35:20 amPHL - EZE
2 stops22h 30mMultiple Airlines
Thu 11/62:40 amEZE - PHL
2 stops23h 52mMultiple Airlines
Deal found 9/15$819
This Avianca Connect deal was found by Cheapflights users on 9/16. 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 Avianca Connect is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/85:15 amPHL - EZE
2 stops22h 35mMultiple Airlines
Fri 12/127:35 amEZE - PHL
2 stops27h 12mMultiple Airlines
Deal found 9/16$820
This Avianca Connect deal was found by Cheapflights users on 9/17. 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 Avianca Connect is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:11 pmPHL - EZE
2 stops25h 24mMultiple Airlines
Tue 12/92:40 amEZE - PHL
2 stops23h 52mMultiple Airlines
Deal found 9/17$822
This Avianca Connect deal was found by Cheapflights users on 9/15. 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 Avianca Connect is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/35:33 amPHL - AEP
2 stops22h 07mMultiple Airlines
Fri 11/77:00 amAEP - PHL
2 stops27h 50mMultiple Airlines
Deal found 9/15$838
This Mytrip deal was found by Cheapflights users on 9/17. 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.
Fri 10/179:55 pmPHL - AEP
3 stops33h 25mMultiple Airlines
Fri 10/241:50 pmAEP - PHL
3 stops27h 56mMultiple Airlines
Deal found 9/17$843
This Avianca Connect deal was found by Cheapflights users on 9/17. 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 Avianca Connect is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/69:11 pmPHL - EZE
2 stops25h 24mMultiple Airlines
Tue 12/167:35 amEZE - PHL
2 stops18h 01mMultiple Airlines
Deal found 9/17$852
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:15 amPHL - EZE
1 stop33h 00mMultiple Airlines
Thu 10/166:50 amEZE - PHL
2 stops24h 07mMultiple Airlines
Deal found 9/17$861
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Mon 10/137:54 pmPHL - AEP
3 stops43h 11mMultiple Airlines
Mon 10/2010:15 amAEP - PHL
3 stops38h 21mMultiple Airlines
Deal found 9/15$866

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 September 17, 2025.
Use the filters below to find and compare flights from Philadelphia to Buenos Aires that are best for you.

Fly from

Philadelphia

Fly to

Buenos Aires

Route

Depart

Return

Price

PhiladelphiaBuenos Aires

PHL - AEP

PHLAEP

Philadelphia

Sun 12/7

9:11 pm-7:30 am

2 stops32h 19m

Buenos Aires Jorge Newbery

Wed 12/10

7:00 am-8:47 am

3 stops27h 47m

$789

PhiladelphiaBuenos Aires

PHL - EZE

PHLEZE

Philadelphia

Mon 12/8

5:15 am-5:50 am

2 stops22h 35m

Buenos Aires Ministro Pistarini

Fri 12/12

7:35 am-8:47 am

2 stops27h 12m

$820

PhiladelphiaBuenos Aires

PHL - AEP

PHLAEP

Philadelphia

Mon 11/3

5:33 am-5:40 am

2 stops22h 07m

Buenos Aires Jorge Newbery

Fri 11/7

7:00 am-8:50 am

2 stops27h 50m

$838

PhiladelphiaBuenos Aires

PHL - EZE

PHLEZE

Philadelphia

Thu 10/30

5:20 am-5:50 am

2 stops23h 30m

Buenos Aires Ministro Pistarini

Wed 11/5

2:40 am-12:32 am

2 stops23h 52m

$839

PhiladelphiaBuenos Aires

PHL - AEP

PHLAEP

Philadelphia

Mon 10/13

7:54 pm-4:05 pm

3 stops43h 11m

Buenos Aires Jorge Newbery

Mon 10/20

10:15 am-11:36 pm

3 stops38h 21m

$866

PhiladelphiaBuenos Aires

PHL - AEP

PHLAEP

Philadelphia

Thu 10/30

5:33 am-5:40 am

2 stops23h 07m

Buenos Aires Jorge Newbery

Thu 11/6

7:00 am-11:36 pm

2 stops18h 36m

$871

PhiladelphiaBuenos Aires

PHL - EZE

PHLEZE

Philadelphia

Thu 12/11

5:15 am-5:50 am

2 stops22h 35m

Buenos Aires Ministro Pistarini

Mon 12/15

4:55 pm-8:47 am

2 stops17h 52m

$876

PhiladelphiaBuenos Aires

PHL - EZE

PHLEZE

Philadelphia

Sat 10/11

7:20 am-3:45 am

1 stop19h 25m

Buenos Aires Ministro Pistarini

Tue 10/14

2:30 am-8:52 am

2 stops31h 22m

$889

PhiladelphiaBuenos Aires

PHL - EZE

PHLEZE

Philadelphia

Sat 12/6

5:15 am-5:50 am

2 stops22h 35m

Buenos Aires Ministro Pistarini

Sun 12/14

7:35 am-8:47 am

2 stops27h 12m

$895

PhiladelphiaBuenos Aires

PHL - AEP

PHLAEP

Philadelphia

Fri 10/17

9:55 pm-8:20 am

3 stops33h 25m

Buenos Aires Jorge Newbery

Thu 10/23

3:40 am-11:59 pm

3 stops21h 19m

$895

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 32 results
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Best time to book a flight from Philadelphia to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Philadelphia 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.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Buenos Aires

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

Currently, April is the cheapest month in which you can book a flight from Philadelphia to Buenos Aires (average of $795). Flying from Philadelphia 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 PHL to BUE?

Find hourly flight availability from Philadelphia 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 September 17, 2025.

When flying from Philadelphia to Buenos Aires, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 26% versus a flight in the afternoon.

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 September 17, 2025.
Peruse reviews from past customers who have flown with Delta and American Airlines from Philadelphia to Buenos Aires to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Philadelphia 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 Philadelphia to Buenos Aires?

    Located just 7.0 mi from the city center, Philadelphia is the airport most travelers will use when flying to Buenos Aires from Philadelphia. Booking flights from Philadelphia (PHL) to Buenos Aires should be relatively easy as there are 0 daily outbound flights to Buenos Aires from 2 different airlines.

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

    Flying on Delta is currently your cheapest option to Buenos Aires, with prices starting at $1,105. Another option worth looking into is American Airlines, starting at $1,205 round trip. Delta is priced at 28% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Philadelphia 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 Philadelphia to Buenos Aires?

    Currently, April is the cheapest month in which you can book a flight from Philadelphia to Buenos Aires (average of $795). Flying from Philadelphia 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

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Alternative routes for Philadelphia to Buenos Aires

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Philadelphia to Buenos Aires

Discover the top 2 airlines that operate flights from Philadelphia 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$1,105Average$1,543FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,205Average$1,527FlexibilityNo cancel feeOn-time71%

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