$678+ 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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BUE
Mar 6 — Mar 131
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
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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 4, 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 4, 2026.
This FlightHub deal was found by Cheapflights users on 2/3. 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 4/144:35 pm
PDX
- EZE
3 stops21h 46m
LATAM Airlines
Wed 4/297:21 pm
EZE
- PDX
2 stops20h 45m
LATAM Airlines
Deal found 2/3![LATAM Airlines logo]()
$1,025
This KAYAK deal was found by Cheapflights users on 2/1. 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 4/146:28 am
PDX
- AEP
2 stops25h 32m
LATAM Airlines
Wed 4/293:45 pm
AEP
- PDX
2 stops24h 21m
LATAM Airlines
Deal found 2/1![LATAM Airlines logo]()
$1,031
This KAYAK deal was found by Cheapflights users on 2/2. 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 4/134:35 pm
PDX
- AEP
2 stops19h 25m
LATAM Airlines
Wed 4/293:45 pm
AEP
- PDX
2 stops24h 21m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,039
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Tue 4/147:00 am
PDX
- EZE
1 stop21h 00m
United Airlines
Wed 4/299:00 pm
EZE
- PDX
1 stop26h 38m
United Airlines
Deal found 2/3![United Airlines logo]()
$1,047
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Mon 4/207:13 am
PDX
- EZE
2 stops20h 02m
American Airlines
Wed 4/298:40 pm
EZE
- PDX
2 stops21h 44m
American Airlines
Deal found 2/1![American Airlines logo]()
$1,051
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 3/27:16 pm
PDX
- EZE
2 stops32h 44m
Multiple Airlines
Mon 3/911:00 am
EZE
- PDX
1 stop37h 44m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$1,062
This KAYAK deal was found by Cheapflights users on 2/2. 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 4/1411:51 am
PDX
- EZE
1 stop17h 54m
LATAM Airlines
Tue 4/288:10 pm
EZE
- PDX
1 stop18h 31m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,065
This Orbitz deal was found by Cheapflights users on 2/1. 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.
Mon 4/207:00 am
PDX
- EZE
1 stop21h 35m
Multiple Airlines
Wed 4/297:35 am
EZE
- PDX
2 stops31h 06m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$1,067
This Gurufare deal was found by Cheapflights users on 2/2. 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.
Mon 4/1311:51 am
PDX
- EZE
1 stop17h 54m
LATAM Airlines
Tue 4/288:10 pm
EZE
- PDX
1 stop18h 31m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,081
This KAYAK deal was found by Cheapflights users on 2/2. 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.
Wed 4/154:35 pm
PDX
- EZE
3 stops21h 46m
LATAM Airlines
Tue 4/288:10 pm
EZE
- PDX
1 stop18h 31m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,082
This KAYAK deal was found by Cheapflights users on 2/2. 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 4/134:35 pm
PDX
- AEP
3 stops23h 05m
LATAM Airlines
Tue 4/283:45 pm
AEP
- PDX
2 stops24h 21m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,089
This LATAM Airlines deal was found by Cheapflights users on 2/1. 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.
Tue 4/1411:51 am
PDX
- EZE
1 stop17h 54m
Multiple Airlines
Wed 4/298:10 pm
EZE
- PDX
1 stop18h 31m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$1,097
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 4, 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 4, 2026.
This FlightHub deal was found by Cheapflights users on 2/3. 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 4/144:35 pm
PDX
- EZE
3 stops21h 46m
LATAM Airlines
Wed 4/297:21 pm
EZE
- PDX
2 stops20h 45m
LATAM Airlines
Deal found 2/3![LATAM Airlines logo]()
$1,025
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Tue 4/147:00 am
PDX
- EZE
1 stop21h 00m
United Airlines
Wed 4/299:00 pm
EZE
- PDX
1 stop26h 38m
United Airlines
Deal found 2/3![United Airlines logo]()
$1,047
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 3/27:16 pm
PDX
- EZE
2 stops32h 44m
Multiple Airlines
Mon 3/911:00 am
EZE
- PDX
1 stop37h 44m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$1,062
This KAYAK deal was found by Cheapflights users on 2/1. 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 4/146:28 am
PDX
- AEP
2 stops25h 32m
LATAM Airlines
Wed 4/293:45 pm
AEP
- PDX
2 stops24h 21m
LATAM Airlines
Deal found 2/1![LATAM Airlines logo]()
$1,031
This Orbitz deal was found by Cheapflights users on 2/1. 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.
Mon 4/207:00 am
PDX
- EZE
1 stop21h 35m
Multiple Airlines
Wed 4/297:35 am
EZE
- PDX
2 stops31h 06m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$1,067
This KAYAK deal was found by Cheapflights users on 2/2. 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 4/166:30 am
PDX
- AEP
2 stops29h 30m
LATAM Airlines
Wed 4/298:05 pm
AEP
- PDX
2 stops42h 36m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/2. 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 4/134:35 pm
PDX
- AEP
2 stops19h 25m
LATAM Airlines
Wed 4/293:45 pm
AEP
- PDX
2 stops24h 21m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/2. 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 4/127:00 am
PDX
- AEP
2 stops29h 00m
LATAM Airlines
Wed 4/293:45 pm
AEP
- PDX
2 stops24h 21m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,039
This KAYAK deal was found by Cheapflights users on 2/2. 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 4/1411:51 am
PDX
- EZE
1 stop17h 54m
LATAM Airlines
Tue 4/288:10 pm
EZE
- PDX
1 stop18h 31m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,065
This KAYAK deal was found by Cheapflights users on 2/2. 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.
Wed 4/154:35 pm
PDX
- EZE
3 stops21h 46m
LATAM Airlines
Tue 4/288:10 pm
EZE
- PDX
1 stop18h 31m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,082
This KAYAK deal was found by Cheapflights users on 2/2. 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 4/134:35 pm
PDX
- AEP
3 stops23h 05m
LATAM Airlines
Sun 4/268:05 pm
AEP
- PDX
2 stops42h 36m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,089
This KAYAK deal was found by Cheapflights users on 2/2. 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 4/1611:03 am
PDX
- AEP
2 stops24h 57m
LATAM Airlines
Sun 4/268:05 pm
AEP
- PDX
2 stops42h 36m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,089
This KAYAK deal was found by Cheapflights users on 2/2. 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 4/146:28 am
PDX
- AEP
2 stops30h 32m
LATAM Airlines
Thu 4/302:55 pm
AEP
- PDX
2 stops25h 11m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,089
This KAYAK deal was found by Cheapflights users on 2/2. 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 4/127:00 am
PDX
- AEP
2 stops29h 00m
LATAM Airlines
Tue 4/282:55 pm
AEP
- PDX
2 stops25h 11m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,089
This FlightHub deal was found by Cheapflights users on 2/2. 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.
Mon 4/1311:51 am
PDX
- EZE
1 stop17h 54m
LATAM Airlines
Wed 4/2911:30 am
EZE
- PDX
2 stops28h 36m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,116
This Gurufare deal was found by Cheapflights users on 2/2. 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.
Mon 4/1311:51 am
PDX
- EZE
1 stop17h 54m
LATAM Airlines
Thu 4/308:10 pm
EZE
- PDX
1 stop18h 31m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,131
This KAYAK deal was found by Cheapflights users on 2/2. 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 4/144:35 pm
PDX
- EZE
3 stops21h 46m
LATAM Airlines
Thu 4/308:10 pm
EZE
- PDX
1 stop18h 31m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,132
Last-minute flights from Portland to Buenos AiresDiscover last-minute flight deals from Portland to Buenos Aires. Data last updated February 4, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Buenos Aires. Data last updated February 4, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 3/27:16 pm
PDX
- EZE
2 stops32h 44m
Multiple Airlines
Mon 3/911:00 am
EZE
- PDX
1 stop37h 44m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$1,062
This Kiwi.com deal was found by Cheapflights users on 2/3. 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
Fri 3/203:55 pm
EZE
- PDX
2 stops32h 34m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,125
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/1410:24 am
PDX
- EZE
2 stops40h 56m
Multiple Airlines
Thu 4/21:20 pm
EZE
- PDX
1 stop35h 15m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,139
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/157:00 am
PDX
- EZE
1 stop22h 35m
Multiple Airlines
Wed 4/12:57 pm
EZE
- PDX
2 stops33h 18m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,107
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/157:00 am
PDX
- EZE
1 stop22h 35m
Multiple Airlines
Thu 4/25:00 am
EZE
- PDX
2 stops43h 35m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,136
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/167:00 am
PDX
- EZE
1 stop22h 35m
Multiple Airlines
Wed 4/12:57 pm
EZE
- PDX
2 stops33h 18m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,103
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/167:00 am
PDX
- EZE
1 stop22h 35m
Multiple Airlines
Mon 3/309:15 pm
EZE
- PDX
2 stops49h 40m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$1,122
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/167:00 am
PDX
- EZE
1 stop22h 35m
Multiple Airlines
Thu 4/25:00 am
EZE
- PDX
2 stops43h 35m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,132
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/167:00 am
PDX
- EZE
1 stop22h 35m
Multiple Airlines
Tue 3/311:20 pm
EZE
- PDX
2 stops50h 30m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,148
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/175:48 pm
PDX
- EZE
2 stops34h 07m
Multiple Airlines
Thu 4/21:20 pm
EZE
- PDX
1 stop35h 15m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,123
This LATAM Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 3/256:15 am
PDX
- EZE
2 stops20h 05m
LATAM Airlines
Mon 4/63:55 am
EZE
- PDX
2 stops23h 33m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$1,147
This LATAM Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 3/2510:58 am
PDX
- AEP
2 stops23h 42m
Multiple Airlines
Tue 4/78:05 pm
AEP
- PDX
3 stops46h 26m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$1,147
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 4, 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 4, 2026.
This Trip.com deal was found by Cheapflights users on 2/2. 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.
Sun 3/89:53 am
PDX
- EZE
2 stops36h 57m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$678
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Sun 3/811:59 pm
PDX
- EZE
1 stop28h 21m
American Airlines
Deal found 2/2![American Airlines logo]()
$721
This FlightHub deal was found by Cheapflights users on 2/2. 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 3/87:00 am
PDX
- EZE
3 stops39h 55m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$791
This business-class.com deal was found by Cheapflights users on 2/2. 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 business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/125:52 pm
PDX
- EZE
2 stops27h 05m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$3,302
This KAYAK deal was found by Cheapflights users on 2/2. 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 2/127:10 am
PDX
- EZE
1 stop19h 10m
Azul
Deal found 2/2![Azul logo]()
$3,648
This AranGrant deal was found by Cheapflights users on 2/2. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/126:45 am
PDX
- AEP
2 stops21h 55m
LATAM Airlines
Deal found 2/2![LATAM Airlines logo]()
$3,661
This Travelocity deal was found by Cheapflights users on 2/2. 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.
Thu 2/129:50 am
PDX
- EZE
3 stops24h 20m
Air Canada
Deal found 2/2![Air Canada logo]()
$7,596
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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,025 (FlightHub) |
One-way from | $678 (Trip.com) |
Popular in | June |
Cheapest in | October |
Average price | $1,324 |
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 4, 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
Tue 4/14
4:35 pm-6:21 pm
3 stops21h 46m
Buenos Aires Ministro Pistarini
Wed 4/29
7:21 pm-12:06 pm
2 stops20h 45m
$1,025
PortlandBuenos Aires
PDX - AEP
PDXAEP
Portland
Tue 4/14
6:28 am-12:00 pm
2 stops25h 32m
Buenos Aires Jorge Newbery
Wed 4/29
3:45 pm-12:06 pm
2 stops24h 21m
$1,031
PortlandBuenos Aires
PDX - AEP
PDXAEP
Portland
Thu 4/16
6:30 am-4:00 pm
2 stops29h 30m
Buenos Aires Jorge Newbery
Wed 4/29
8:05 pm-10:41 am
2 stops42h 36m
$1,039
PortlandBuenos Aires
PDX - AEP
PDXAEP
Portland
Mon 4/13
4:35 pm-4:00 pm
2 stops19h 25m
Buenos Aires Jorge Newbery
Wed 4/29
3:45 pm-12:06 pm
2 stops24h 21m
$1,039
PortlandBuenos Aires
PDX - AEP
PDXAEP
Portland
Sun 4/12
7:00 am-4:00 pm
2 stops29h 00m
Buenos Aires Jorge Newbery
Wed 4/29
3:45 pm-12:06 pm
2 stops24h 21m
$1,039
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
Tue 4/14
7:00 am-8:00 am
1 stop21h 00m
Buenos Aires Ministro Pistarini
Wed 4/29
9:00 pm-7:38 pm
1 stop26h 38m
$1,047
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
Mon 3/2
7:16 pm-9:00 am
2 stops32h 44m
Buenos Aires Ministro Pistarini
Mon 3/9
11:00 am-8:44 pm
1 stop37h 44m
$1,062
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
Tue 4/14
11:51 am-9:45 am
1 stop17h 54m
Buenos Aires Ministro Pistarini
Tue 4/28
8:10 pm-10:41 am
1 stop18h 31m
$1,065
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
Mon 4/20
7:00 am-8:35 am
1 stop21h 35m
Buenos Aires Ministro Pistarini
Wed 4/29
7:35 am-10:41 am
2 stops31h 06m
$1,067
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
Wed 4/15
4:35 pm-6:21 pm
3 stops21h 46m
Buenos Aires Ministro Pistarini
Tue 4/28
8:10 pm-10:41 am
1 stop18h 31m
$1,082
Showing 1-10 of 24 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
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 January 30, 2026.
To ensure you get the cheapest price possible for a flight from Portland to Buenos Aires, you should look to book at least 17 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, 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.
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 4, 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.
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.9
Entertainment
7.8
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.
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Alternative routes for Portland to Buenos Aires
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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 4, 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 4, 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 4, 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 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$826 | Average$1,335 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$971 | Average$1,285 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,081 | Average$1,324 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,125 | Average$1,331 | FlexibilityNo cancel fee | On-time81% |