$462+ 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BUE
Mar 14 — Mar 211
1 adult, Economy
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Find cheap flights from Portland to Buenos Aires with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Buenos Aires
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Cheapest flights from Portland to Buenos AiresExplore 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 February 12, 2026.
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 February 12, 2026.
This KAYAK deal was found by Cheapflights users on 2/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:00 am
PDX
- EZE
2 stops22h 22m
LATAM Airlines
Wed 9/24:45 pm
EZE
- PDX
2 stops22h 58m
LATAM Airlines
Deal found 2/10![LATAM Airlines logo]()
$1,056
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Tue 3/35:39 pm
PDX
- EZE
2 stops24h 19m
Multiple Airlines
Tue 3/1710:45 pm
EZE
- PDX
1 stop25h 50m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,077
This BusinessClass deal was found by Cheapflights users on 2/12. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:30 pm
PDX
- EZE
1 stop15h 15m
LATAM Airlines
Tue 10/278:55 pm
EZE
- PDX
1 stop20h 30m
LATAM Airlines
Deal found 2/12![LATAM Airlines logo]()
$1,089
This KAYAK deal was found by Cheapflights users on 2/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2311:00 pm
PDX
- EZE
2 stops29h 35m
LATAM Airlines
Wed 7/227:21 pm
EZE
- PDX
2 stops20h 52m
LATAM Airlines
Deal found 2/10![LATAM Airlines logo]()
$1,093
This Ovago deal was found by Cheapflights users on 2/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3011:45 am
PDX
- EZE
1 stop18h 00m
LATAM Airlines
Wed 9/28:10 pm
EZE
- PDX
1 stop20h 56m
LATAM Airlines
Deal found 2/12![LATAM Airlines logo]()
$1,103
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 2/247:00 am
PDX
- EZE
1 stop21h 35m
Multiple Airlines
Wed 3/189:15 pm
EZE
- PDX
2 stops27h 20m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,114
This eDestinos deal was found by Cheapflights users on 2/12. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:00 am
PDX
- EZE
2 stops19h 10m
Multiple Airlines
Sun 8/307:45 am
EZE
- PDX
2 stops32h 28m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,120
This eDestinos deal was found by Cheapflights users on 2/12. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:00 am
PDX
- AEP
2 stops20h 40m
Multiple Airlines
Sun 8/303:40 pm
AEP
- PDX
2 stops28h 47m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,121
This FlightHub deal was found by Cheapflights users on 2/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1410:00 am
PDX
- EZE
2 stops22h 22m
LATAM Airlines
Mon 7/277:21 pm
EZE
- PDX
2 stops20h 52m
LATAM Airlines
Deal found 2/12![LATAM Airlines logo]()
$1,122
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Sun 3/87:00 am
PDX
- EZE
1 stop22h 35m
Multiple Airlines
Sun 3/157:00 pm
EZE
- PDX
2 stops29h 48m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,123
This Orbitz deal was found by Cheapflights users on 2/10. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2311:00 pm
PDX
- EZE
2 stops29h 35m
LATAM Airlines
Mon 7/203:55 am
EZE
- PDX
2 stops36h 18m
LATAM Airlines
Deal found 2/10![LATAM Airlines logo]()
$1,131
This Ovago deal was found by Cheapflights users on 2/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:18 am
PDX
- EZE
1 stop21h 22m
Multiple Airlines
Mon 12/71:10 pm
EZE
- PDX
1 stop36h 40m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,137
Best flights from Portland to Buenos AiresDiscover carefully curated flight deals from Portland to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 12, 2026.
Discover carefully curated flight deals from Portland to Buenos Aires that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 12, 2026.
This KAYAK deal was found by Cheapflights users on 2/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:00 am
PDX
- EZE
2 stops22h 22m
LATAM Airlines
Wed 9/24:45 pm
EZE
- PDX
2 stops22h 58m
LATAM Airlines
Deal found 2/10![LATAM Airlines logo]()
$1,056
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Tue 3/35:39 pm
PDX
- EZE
2 stops24h 19m
Multiple Airlines
Tue 3/1710:45 pm
EZE
- PDX
1 stop25h 50m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,077
This Ovago deal was found by Cheapflights users on 2/12. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3011:45 am
PDX
- EZE
1 stop18h 00m
LATAM Airlines
Wed 9/28:10 pm
EZE
- PDX
1 stop20h 56m
LATAM Airlines
Deal found 2/12![LATAM Airlines logo]()
$1,103
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Sun 3/87:00 am
PDX
- EZE
1 stop22h 35m
Multiple Airlines
Sun 3/157:00 pm
EZE
- PDX
2 stops29h 48m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,123
This FlightHub deal was found by Cheapflights users on 2/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1410:00 am
PDX
- EZE
2 stops22h 22m
LATAM Airlines
Mon 7/277:21 pm
EZE
- PDX
2 stops20h 52m
LATAM Airlines
Deal found 2/12![LATAM Airlines logo]()
$1,122
This Expedia deal was found by Cheapflights users on 2/11. 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.
Mon 6/292:30 pm
PDX
- EZE
2 stops38h 05m
Multiple Airlines
Fri 7/107:45 am
EZE
- PDX
2 stops20h 14m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,181
This FlightHub deal was found by Cheapflights users on 2/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/610:00 am
PDX
- AEP
2 stops24h 45m
LATAM Airlines
Sat 8/158:05 pm
AEP
- PDX
2 stops42h 32m
LATAM Airlines
Deal found 2/10![LATAM Airlines logo]()
$1,161
This LATAM Airlines deal was found by Cheapflights users on 2/10. 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.
Thu 7/211:45 am
PDX
- EZE
1 stop18h 00m
Multiple Airlines
Fri 7/317:21 pm
EZE
- PDX
2 stops20h 52m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,187
This Travelocity deal was found by Cheapflights users on 2/12. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1410:00 am
PDX
- AEP
2 stops24h 45m
LATAM Airlines
Mon 7/273:40 pm
AEP
- PDX
2 stops24h 33m
LATAM Airlines
Deal found 2/12![LATAM Airlines logo]()
$1,177
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Mon 2/237:00 am
PDX
- EZE
1 stop21h 35m
Multiple Airlines
Wed 3/189:15 pm
EZE
- PDX
2 stops27h 20m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,188
This KAYAK deal was found by Cheapflights users on 2/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:04 am
PDX
- EZE
1 stop23h 41m
LATAM Airlines
Sat 8/157:21 pm
EZE
- PDX
2 stops20h 52m
LATAM Airlines
Deal found 2/10![LATAM Airlines logo]()
$1,179
This KAYAK deal was found by Cheapflights users on 2/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:30 am
PDX
- EZE
2 stops19h 50m
LATAM Airlines
Mon 7/137:21 pm
EZE
- PDX
2 stops20h 52m
LATAM Airlines
Deal found 2/10![LATAM Airlines logo]()
$1,179
This Gurufare deal was found by Cheapflights users on 2/10. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:25 am
PDX
- AEP
2 stops31h 15m
Multiple Airlines
Sat 3/148:05 pm
AEP
- PDX
2 stops21h 20m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,459
This FlightHub deal was found by Cheapflights users on 2/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/25:10 pm
PDX
- AEP
2 stops41h 35m
LATAM Airlines
Sat 8/158:05 pm
AEP
- PDX
2 stops20h 08m
LATAM Airlines
Deal found 2/12![LATAM Airlines logo]()
$1,296
This KAYAK deal was found by Cheapflights users on 2/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/236:30 am
PDX
- AEP
2 stops21h 10m
LATAM Airlines
Tue 7/215:05 pm
AEP
- PDX
2 stops23h 08m
LATAM Airlines
Deal found 2/10![LATAM Airlines logo]()
$1,299
This KAYAK deal was found by Cheapflights users on 2/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:25 am
PDX
- AEP
2 stops20h 30m
LATAM Airlines
Tue 3/1712:40 pm
AEP
- PDX
3 stops27h 34m
LATAM Airlines
Deal found 2/12![LATAM Airlines logo]()
$1,349
This KAYAK deal was found by Cheapflights users on 2/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/86:15 am
PDX
- AEP
2 stops21h 40m
LATAM Airlines
Sun 3/155:00 pm
AEP
- PDX
2 stops23h 14m
LATAM Airlines
Deal found 2/11![LATAM Airlines logo]()
$1,374
This KAYAK deal was found by Cheapflights users on 2/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:45 pm
PDX
- AEP
2 stops29h 10m
LATAM Airlines
Sat 3/143:40 pm
AEP
- PDX
2 stops24h 34m
LATAM Airlines
Deal found 2/11![LATAM Airlines logo]()
$1,399
This Expedia deal was found by Cheapflights users on 2/11. 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.
Mon 6/2910:00 am
PDX
- AEP
2 stops29h 40m
LATAM Airlines
Fri 7/108:40 am
AEP
- PDX
2 stops31h 33m
LATAM Airlines
Deal found 2/11![LATAM Airlines logo]()
$1,402
This Expedia deal was found by Cheapflights users on 2/11. 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.
Sat 3/286:30 am
PDX
- AEP
2 stops24h 00m
LATAM Airlines
Sat 4/49:05 pm
AEP
- PDX
2 stops43h 09m
LATAM Airlines
Deal found 2/11![LATAM Airlines logo]()
$1,432
Last-minute flights from Portland to Buenos AiresDiscover last-minute flight deals from Portland to Buenos Aires. Data last updated February 12, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Buenos Aires. Data last updated February 12, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Sun 2/227:00 am
PDX
- EZE
1 stop23h 35m
Multiple Airlines
Wed 3/189:15 pm
EZE
- PDX
2 stops27h 20m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,173
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Mon 2/237:00 am
PDX
- EZE
1 stop21h 35m
Multiple Airlines
Mon 3/162:45 am
EZE
- PDX
2 stops21h 59m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,188
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 2/247:00 am
PDX
- EZE
1 stop21h 35m
Multiple Airlines
Wed 3/189:15 pm
EZE
- PDX
2 stops27h 20m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,114
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 2/247:00 am
PDX
- EZE
1 stop21h 35m
Multiple Airlines
Sat 3/217:04 pm
EZE
- PDX
2 stops53h 31m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,141
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 2/247:00 am
PDX
- EZE
1 stop21h 35m
Multiple Airlines
Mon 3/1611:00 am
EZE
- PDX
1 stop37h 44m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,206
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 2/247:00 am
PDX
- EZE
1 stop21h 35m
Multiple Airlines
Tue 3/1711:00 am
EZE
- PDX
1 stop37h 35m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,209
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 2/247:00 am
PDX
- EZE
1 stop21h 35m
Multiple Airlines
Wed 3/183:47 am
EZE
- PDX
2 stops20h 48m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,211
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 2/247:00 am
PDX
- EZE
1 stop21h 35m
Multiple Airlines
Sun 3/157:00 pm
EZE
- PDX
2 stops29h 48m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$1,220
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Tue 3/35:39 pm
PDX
- EZE
2 stops24h 19m
Multiple Airlines
Tue 3/1710:45 pm
EZE
- PDX
1 stop25h 50m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$1,077
This KAYAK deal was found by Cheapflights users on 2/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:25 am
PDX
- AEP
2 stops20h 30m
LATAM Airlines
Tue 3/1712:40 pm
AEP
- PDX
3 stops27h 34m
LATAM Airlines
Deal found 2/12![LATAM Airlines logo]()
$1,349
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Sun 3/87:00 am
PDX
- EZE
1 stop22h 35m
Multiple Airlines
Sun 3/157:00 pm
EZE
- PDX
2 stops29h 48m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$1,123
This KAYAK deal was found by Cheapflights users on 2/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/86:15 am
PDX
- AEP
2 stops21h 40m
LATAM Airlines
Sun 3/155:00 pm
AEP
- PDX
2 stops23h 14m
LATAM Airlines
Deal found 2/11![LATAM Airlines logo]()
$1,374
One-way flights from Portland to Buenos AiresSearch for one-way flight options from Portland to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated February 12, 2026.
Search for one-way flight options from Portland to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated February 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Wed 6/107:50 am
PDX
- AEP
3 stops47h 30m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$462
This Trip.com deal was found by Cheapflights users on 2/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1210:56 pm
PDX
- EZE
2 stops24h 49m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$472
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Tue 6/92:48 pm
PDX
- EZE
2 stops35h 22m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$476
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Tue 6/92:48 pm
PDX
- AEP
2 stops44h 02m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$476
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Wed 6/106:15 am
PDX
- EZE
3 stops40h 45m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$482
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Sat 6/1310:56 pm
PDX
- EZE
2 stops45h 09m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$510
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Sat 6/139:35 pm
PDX
- AEP
3 stops34h 35m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$519
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Thu 6/119:35 pm
PDX
- EZE
2 stops25h 48m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$552
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 6/123:12 pm
PDX
- AEP
3 stops37h 18m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$554
This oojo deal was found by Cheapflights users on 2/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:00 am
PDX
- EZE
2 stops28h 40m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$567
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Sun 6/147:00 am
PDX
- EZE
2 stops24h 30m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$576
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Thu 6/1110:56 pm
PDX
- AEP
3 stops32h 24m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$607
Find 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 February 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,056 (KAYAK) |
One-way from | $462 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $1,303 |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated February 12, 2026.
Use the filters below to find and compare flights from Portland to Buenos Aires that are best for you.
Fly from
Portland
Fly to
Buenos Aires
Route
Depart
Return
Price
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-11:43 am
2 stops22h 58m
$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
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 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 - AEP
PDXAEP
Portland
Thu 8/6
10:00 am-2:45 pm
2 stops24h 45m
Buenos Aires Jorge Newbery
Sat 8/15
8:05 pm-10:37 am
2 stops42h 32m
$1,161
PortlandBuenos Aires
PDX - AEP
PDXAEP
Portland
Tue 7/14
10:00 am-2:45 pm
2 stops24h 45m
Buenos Aires Jorge Newbery
Mon 7/27
3:40 pm-12:13 pm
2 stops24h 33m
$1,177
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
Thu 8/6
6:04 am-9:45 am
1 stop23h 41m
Buenos Aires Ministro Pistarini
Sat 8/15
7:21 pm-12:13 pm
2 stops20h 52m
$1,179
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
Fri 7/3
6:30 am-6:20 am
2 stops19h 50m
Buenos Aires Ministro Pistarini
Mon 7/13
7:21 pm-12:13 pm
2 stops20h 52m
$1,179
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
Mon 6/29
2:30 pm-8:35 am
2 stops38h 05m
Buenos Aires Ministro Pistarini
Fri 7/10
7:45 am-11:59 pm
2 stops20h 14m
$1,181
Showing 1-10 of 35 results
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.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- 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.
PDX-BUE
PDX-EZE
PDX-AEP
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 Portland to Buenos Aires
PDX-BUE
PDX-EZE
PDX-AEP
What is the cheapest month to book a flight from Portland to Buenos Aires?
Currently, March is the cheapest month in which you can book a flight from Portland to Buenos Aires (average of $826). Flying from Portland to Buenos Aires in June is currently the most expensive (average of $1,595). 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.
How much does it cost to fly round-trip from Portland to Buenos Aires?
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 February 12, 2026.
Peruse reviews from past customers who have flown with Delta, LATAM Airlines, and United Airlines from Portland 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.
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Boarding
8.1
Crew
8.5
Overall
7.9
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Buenos Aires flight routes
Complete your trip
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Other flights from Portland
Popular flights
Alternative routes for Portland to Buenos Aires
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Buenos Aires
Explore flights to Buenos Aires departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 12, 2026.
Complete your trip
Complete your trip to Buenos Aires by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Buenos Aires by cabin class
Find flights from Portland to Buenos Aires, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Buenos Aires flights
Browse other Portland and Buenos Aires flight options. Last updated on February 12, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on February 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 February 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$826 | Average$1,325 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$971 | Average$1,272 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,081 | Average$1,324 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,125 | Average$1,248 | FlexibilityNo cancel fee | On-time81% |