$307+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BUE
apr 27 — mag 41
Round-trip
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 marzo 28, 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 marzo 28, 2026.
This United Airlines deal was found by Cheapflights users on 3/27. 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.
mer 4/297:00 am
PDX
- EZE
1 stop21h 00m
United Airlines
mer 5/69:00 pm
EZE
- PDX
1 stop26h 38m
United Airlines
Deal found 3/27![United Airlines logo]()
$1,037
This United Airlines deal was found by Cheapflights users on 3/24. 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.
gio 5/77:00 am
PDX
- EZE
1 stop21h 00m
United Airlines
gio 5/149:00 pm
EZE
- PDX
1 stop29h 59m
United Airlines
Deal found 3/24![United Airlines logo]()
$1,051
This United Airlines deal was found by Cheapflights users on 3/25. 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.
dom 5/1011:55 pm
PDX
- EZE
2 stops28h 05m
United Airlines
mar 5/269:00 pm
EZE
- PDX
1 stop26h 18m
United Airlines
Deal found 3/25![United Airlines logo]()
$1,081
This KAYAK deal was found by Cheapflights users on 3/24. 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.
mar 4/2111:51 am
PDX
- AEP
2 stops29h 39m
LATAM Airlines
mar 4/288:05 pm
AEP
- PDX
2 stops27h 00m
LATAM Airlines
Deal found 3/24![LATAM Airlines logo]()
$1,111
This KAYAK deal was found by Cheapflights users on 3/24. 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.
mar 4/216:28 am
PDX
- EZE
1 stop23h 17m
LATAM Airlines
mar 4/281:10 pm
EZE
- PDX
2 stops33h 55m
LATAM Airlines
Deal found 3/24![LATAM Airlines logo]()
$1,115
This Kiwi.com deal was found by Cheapflights users on 3/23. 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.
gio 5/72:06 pm
PDX
- EZE
1 stop15h 39m
LATAM Airlines
gio 5/141:10 pm
EZE
- PDX
2 stops27h 44m
LATAM Airlines
Deal found 3/23![LATAM Airlines logo]()
$1,116
This Delta deal was found by Cheapflights users on 3/24. 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.
mar 4/2111:51 am
PDX
- AEP
2 stops24h 09m
Delta
mer 4/293:45 pm
AEP
- PDX
2 stops34h 31m
Delta
Deal found 3/24![Delta logo]()
$1,127
This Delta deal was found by Cheapflights users on 3/24. 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.
mar 4/2111:51 am
PDX
- EZE
1 stop17h 54m
Delta
mer 4/291:10 pm
EZE
- PDX
2 stops30h 28m
Delta
Deal found 3/24![Delta logo]()
$1,131
This United Airlines deal was found by Cheapflights users on 3/24. 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.
mer 5/205:20 am
PDX
- EZE
2 stops22h 40m
United Airlines
mer 6/109:00 pm
EZE
- PDX
2 stops22h 13m
United Airlines
Deal found 3/24![United Airlines logo]()
$1,146
This Gurufare deal was found by Cheapflights users on 3/24. 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.
mer 5/209:39 pm
PDX
- AEP
2 stops30h 01m
LATAM Airlines
mer 6/103:45 pm
AEP
- PDX
2 stops24h 40m
LATAM Airlines
Deal found 3/24![LATAM Airlines logo]()
$1,187
This FlightHub deal was found by Cheapflights users on 3/27. 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.
gio 6/410:52 am
PDX
- AEP
2 stops23h 58m
LATAM Airlines
lun 6/228:05 pm
AEP
- PDX
2 stops20h 20m
LATAM Airlines
Deal found 3/27![LATAM Airlines logo]()
$1,198
This FlightHub deal was found by Cheapflights users on 3/24. 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.
gio 10/2210:00 am
PDX
- AEP
2 stops24h 50m
LATAM Airlines
dom 11/18:05 pm
AEP
- PDX
2 stops21h 13m
LATAM Airlines
Deal found 3/24![LATAM Airlines logo]()
$1,225
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 marzo 28, 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 marzo 28, 2026.
This United Airlines deal was found by Cheapflights users on 3/24. 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.
gio 5/75:30 am
PDX
- EZE
2 stops22h 30m
United Airlines
gio 5/149:00 pm
EZE
- PDX
1 stop29h 59m
United Airlines
Deal found 3/24![United Airlines logo]()
$1,055
This KAYAK deal was found by Cheapflights users on 3/24. 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.
mar 4/2111:51 am
PDX
- AEP
2 stops29h 39m
LATAM Airlines
mar 4/288:05 pm
AEP
- PDX
2 stops27h 00m
LATAM Airlines
Deal found 3/24![LATAM Airlines logo]()
$1,111
This Delta deal was found by Cheapflights users on 3/24. 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.
gio 5/77:00 am
PDX
- AEP
2 stops20h 40m
Delta
gio 5/148:05 pm
AEP
- PDX
2 stops20h 49m
Delta
Deal found 3/24![Delta logo]()
$1,127
This Travelocity deal was found by Cheapflights users on 3/23. 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.
mar 6/236:19 am
PDX
- EZE
2 stops23h 01m
Multiple Airlines
gio 7/27:21 pm
EZE
- PDX
2 stops22h 15m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$1,267
This Delta deal was found by Cheapflights users on 3/24. 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.
mer 4/2211:51 am
PDX
- AEP
2 stops24h 09m
Delta
mer 4/293:45 pm
AEP
- PDX
2 stops34h 31m
Delta
Deal found 3/24![Delta logo]()
$1,127
This United Airlines deal was found by Cheapflights users on 3/24. 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.
mer 5/205:00 am
PDX
- EZE
2 stops23h 00m
United Airlines
mer 6/109:00 pm
EZE
- PDX
1 stop26h 18m
United Airlines
Deal found 3/24![United Airlines logo]()
$1,146
This Gurufare deal was found by Cheapflights users on 3/24. 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.
mer 5/209:39 pm
PDX
- AEP
2 stops30h 01m
LATAM Airlines
mer 6/103:45 pm
AEP
- PDX
2 stops24h 40m
LATAM Airlines
Deal found 3/24![LATAM Airlines logo]()
$1,187
This Travelocity deal was found by Cheapflights users on 3/23. 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.
mar 6/237:30 am
PDX
- AEP
2 stops28h 30m
Multiple Airlines
gio 7/29:25 am
AEP
- PDX
2 stops30h 48m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$1,298
This FlightHub deal was found by Cheapflights users on 3/27. 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.
gio 6/410:52 am
PDX
- AEP
2 stops23h 58m
LATAM Airlines
lun 6/228:05 pm
AEP
- PDX
2 stops20h 20m
LATAM Airlines
Deal found 3/27![LATAM Airlines logo]()
$1,198
This United Airlines deal was found by Cheapflights users on 3/25. 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.
gio 7/91:02 pm
PDX
- EZE
1 stop14h 58m
United Airlines
lun 8/109:00 pm
EZE
- PDX
2 stops22h 05m
United Airlines
Deal found 3/25![United Airlines logo]()
$1,216
This Delta deal was found by Cheapflights users on 3/25. 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.
mar 8/46:35 am
PDX
- AEP
2 stops21h 05m
Delta
dom 9/68:05 pm
AEP
- PDX
2 stops20h 08m
Delta
Deal found 3/25![Delta logo]()
$1,247
This United Airlines deal was found by Cheapflights users on 3/25. 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.
dom 7/2611:40 pm
PDX
- EZE
2 stops28h 20m
United Airlines
mar 8/259:00 pm
EZE
- PDX
2 stops22h 05m
United Airlines
Deal found 3/25![United Airlines logo]()
$1,216
This LATAM Airlines deal was found by Cheapflights users on 3/23. 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.
gio 5/76:50 am
PDX
- AEP
2 stops20h 50m
LATAM Airlines
gio 5/142:55 pm
AEP
- PDX
2 stops23h 11m
LATAM Airlines
Deal found 3/23![LATAM Airlines logo]()
$1,235
This Delta deal was found by Cheapflights users on 3/23. 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.
gio 5/711:16 am
PDX
- EZE
1 stop18h 29m
Delta
gio 5/148:10 pm
EZE
- PDX
1 stop17h 56m
Delta
Deal found 3/23![Delta logo]()
$1,297
This United Airlines deal was found by Cheapflights users on 3/26. 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.
ven 7/2411:40 pm
PDX
- EZE
2 stops28h 20m
United Airlines
gio 8/69:00 pm
EZE
- PDX
2 stops30h 03m
United Airlines
Deal found 3/26![United Airlines logo]()
$1,216
This LATAM Airlines deal was found by Cheapflights users on 3/25. 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.
mer 7/226:35 am
PDX
- AEP
2 stops21h 55m
LATAM Airlines
dom 8/238:05 pm
AEP
- PDX
2 stops20h 08m
LATAM Airlines
Deal found 3/25![LATAM Airlines logo]()
$1,247
This Delta deal was found by Cheapflights users on 3/24. 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.
mar 4/216:45 am
PDX
- AEP
2 stops20h 55m
Delta
dom 5/33:45 pm
AEP
- PDX
2 stops22h 56m
Delta
Deal found 3/24![Delta logo]()
$1,322
This United Airlines deal was found by Cheapflights users on 3/25. 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.
mar 7/144:15 pm
PDX
- EZE
2 stops35h 45m
United Airlines
gio 8/139:00 pm
EZE
- PDX
2 stops29h 52m
United Airlines
Deal found 3/25![United Airlines logo]()
$1,216
This LATAM Airlines deal was found by Cheapflights users on 3/25. 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.
mar 7/76:35 am
PDX
- AEP
2 stops21h 05m
LATAM Airlines
dom 8/98:05 pm
AEP
- PDX
2 stops20h 08m
LATAM Airlines
Deal found 3/25![LATAM Airlines logo]()
$1,247
This United Airlines deal was found by Cheapflights users on 3/25. 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.
mer 7/15:00 am
PDX
- EZE
2 stops23h 00m
United Airlines
mer 8/59:00 pm
EZE
- PDX
1 stop18h 56m
United Airlines
Deal found 3/25![United Airlines logo]()
$1,216
This LATAM Airlines deal was found by Cheapflights users on 3/25. 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 7/66:35 am
PDX
- AEP
2 stops21h 05m
LATAM Airlines
dom 8/98:05 pm
AEP
- PDX
2 stops20h 08m
LATAM Airlines
Deal found 3/25![LATAM Airlines logo]()
$1,247
This United Airlines deal was found by Cheapflights users on 3/27. 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.
gio 6/45:15 am
PDX
- EZE
3 stops22h 45m
United Airlines
lun 6/229:00 pm
EZE
- PDX
2 stops22h 13m
United Airlines
Deal found 3/27![United Airlines logo]()
$1,251
This United Airlines deal was found by Cheapflights users on 3/27. 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.
lun 8/35:00 am
PDX
- EZE
2 stops23h 00m
United Airlines
mar 9/19:00 pm
EZE
- PDX
2 stops25h 47m
United Airlines
Deal found 3/27![United Airlines logo]()
$1,251
This United Airlines deal was found by Cheapflights users on 3/27. 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.
dom 8/26:50 pm
PDX
- EZE
2 stops33h 10m
United Airlines
mar 9/19:00 pm
EZE
- PDX
2 stops31h 47m
United Airlines
Deal found 3/27![United Airlines logo]()
$1,273
Last-minute flights from Portland to Buenos AiresDiscover last-minute flight deals from Portland to Buenos Aires. Data last updated marzo 28, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Buenos Aires. Data last updated marzo 28, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
sab 4/187:00 am
PDX
- EZE
1 stop17h 30m
Multiple Airlines
ven 5/19:02 am
EZE
- PDX
2 stops39h 11m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$1,206
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
sab 4/187:00 am
PDX
- EZE
1 stop17h 30m
Multiple Airlines
ven 5/112:10 am
EZE
- PDX
2 stops24h 03m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$1,209
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
sab 4/187:00 am
PDX
- EZE
1 stop17h 30m
Multiple Airlines
dom 5/312:10 am
EZE
- PDX
2 stops37h 39m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$1,217
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
lun 4/207:00 am
PDX
- EZE
1 stop17h 30m
Multiple Airlines
ven 5/112:10 am
EZE
- PDX
2 stops24h 03m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$1,214
This KAYAK deal was found by Cheapflights users on 3/24. 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.
mar 4/2111:51 am
PDX
- AEP
2 stops29h 39m
LATAM Airlines
mar 4/288:05 pm
AEP
- PDX
2 stops27h 00m
LATAM Airlines
Deal found 3/24![LATAM Airlines logo]()
$1,111
This KAYAK deal was found by Cheapflights users on 3/24. 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.
mar 4/2111:51 am
PDX
- EZE
2 stops26h 30m
LATAM Airlines
mar 4/281:10 pm
EZE
- PDX
2 stops33h 55m
LATAM Airlines
Deal found 3/24![LATAM Airlines logo]()
$1,115
This Delta deal was found by Cheapflights users on 3/24. 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.
mar 4/2111:51 am
PDX
- AEP
2 stops24h 09m
Delta
mer 4/293:45 pm
AEP
- PDX
2 stops34h 31m
Delta
Deal found 3/24![Delta logo]()
$1,127
This Delta deal was found by Cheapflights users on 3/24. 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.
mar 4/219:55 am
PDX
- EZE
2 stops19h 50m
Delta
lun 5/41:10 pm
EZE
- PDX
2 stops27h 07m
Delta
Deal found 3/24![Delta logo]()
$1,131
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
mar 4/217:00 am
PDX
- EZE
1 stop32h 15m
Multiple Airlines
ven 5/19:02 am
EZE
- PDX
2 stops39h 11m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$1,204
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
mar 4/217:00 am
PDX
- EZE
1 stop32h 15m
Multiple Airlines
ven 5/112:10 am
EZE
- PDX
2 stops24h 03m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$1,208
This United Airlines deal was found by Cheapflights users on 3/27. 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.
mer 4/297:00 am
PDX
- EZE
1 stop21h 00m
United Airlines
mer 5/69:00 pm
EZE
- PDX
1 stop26h 38m
United Airlines
Deal found 3/27![United Airlines logo]()
$1,037
This KAYAK deal was found by Cheapflights users on 3/27. 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.
gio 4/307:00 am
PDX
- EZE
1 stop21h 00m
Avianca
gio 5/79:00 pm
EZE
- PDX
1 stop19h 43m
Avianca
Deal found 3/27![Avianca logo]()
$1,186
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 marzo 28, 2026.
Search for one-way flight options from Portland to Buenos Aires. Find affordable one-way fares based on user searches. Data last updated marzo 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
mar 6/95:42 pm
PDX
- EZE
3 stops36h 18m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
mar 6/95:42 pm
PDX
- AEP
3 stops34h 48m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
mer 6/105:42 pm
PDX
- AEP
3 stops34h 48m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
dom 4/197:00 am
PDX
- AEP
2 stops21h 30m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
mer 6/105:42 pm
PDX
- EZE
3 stops29h 18m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
gio 6/1112:26 pm
PDX
- AEP
3 stops40h 04m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$430
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
gio 6/114:06 pm
PDX
- EZE
3 stops56h 04m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
dom 4/197:00 am
PDX
- EZE
2 stops40h 23m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$448
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
lun 6/812:35 pm
PDX
- AEP
3 stops39h 55m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
ven 6/1212:26 pm
PDX
- AEP
3 stops40h 04m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$463
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
sab 6/139:37 pm
PDX
- EZE
2 stops26h 08m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$475
This Mytrip deal was found by Cheapflights users on 3/26. 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.
dom 4/511:15 pm
PDX
- EZE
3 stops30h 45m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$509
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 marzo 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,037 (United Airlines) |
One-way from | $307 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,281 |
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 marzo 28, 2026.
Use the filters below to find and compare flights from Portland to Buenos Aires that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
gio 5/7
5:30 am-8:00 am
2 stops22h 30m
Buenos Aires Ministro Pistarini
gio 5/14
9:00 pm-10:59 pm
1 stop29h 59m
$1,055
PortlandBuenos Aires
PDX - AEP
PDXAEP
Portland
mar 4/21
11:51 am-9:30 pm
2 stops29h 39m
Buenos Aires Jorge Newbery
mar 4/28
8:05 pm-7:05 pm
2 stops27h 00m
$1,111
PortlandBuenos Aires
PDX - AEP
PDXAEP
Portland
gio 5/7
7:00 am-7:40 am
2 stops20h 40m
Buenos Aires Jorge Newbery
gio 5/14
8:05 pm-12:54 pm
2 stops20h 49m
$1,127
PortlandBuenos Aires
PDX - AEP
PDXAEP
Portland
mer 4/22
11:51 am-4:00 pm
2 stops24h 09m
Buenos Aires Jorge Newbery
mer 4/29
3:45 pm-10:16 pm
2 stops34h 31m
$1,127
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
mer 5/20
5:00 am-8:00 am
2 stops23h 00m
Buenos Aires Ministro Pistarini
mer 6/10
9:00 pm-7:18 pm
1 stop26h 18m
$1,146
PortlandBuenos Aires
PDX - AEP
PDXAEP
Portland
mer 5/20
9:39 pm-7:40 am
2 stops30h 01m
Buenos Aires Jorge Newbery
mer 6/10
3:45 pm-12:25 pm
2 stops24h 40m
$1,187
PortlandBuenos Aires
PDX - AEP
PDXAEP
Portland
gio 6/4
10:52 am-2:50 pm
2 stops23h 58m
Buenos Aires Jorge Newbery
lun 6/22
8:05 pm-12:25 pm
2 stops20h 20m
$1,198
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
gio 7/9
1:02 pm-8:00 am
1 stop14h 58m
Buenos Aires Ministro Pistarini
lun 8/10
9:00 pm-3:05 pm
2 stops22h 05m
$1,216
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
dom 7/26
11:40 pm-8:00 am
2 stops28h 20m
Buenos Aires Ministro Pistarini
mar 8/25
9:00 pm-3:05 pm
2 stops22h 05m
$1,216
PortlandBuenos Aires
PDX - EZE
PDXEZE
Portland
ven 7/24
11:40 pm-8:00 am
2 stops28h 20m
Buenos Aires Ministro Pistarini
gio 8/6
9:00 pm-11:03 pm
2 stops30h 03m
$1,216
Showing 1-10 of 34 resultsSorted by cheapest first
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 March.
| 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 marzo 28, 2026.
Peruse reviews from past customers who have flown with Delta,LATAM Airlines, andUnited 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
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Comfort
7.9
Overall
7.9
Boarding
8.1
Crew
8.5
Food
7.2
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
Flights by cabin class
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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 marzo 28, 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 marzo 28, 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 marzo 28, 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 marzo 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$826 | Average$1,325 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$901 | Average$1,309 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$971 | Average$1,214 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,165 | Average$1,296 | FlexibilityNo cancel fee | On-time81% |