Cheap flights from Portland to Buenos Aires from $491
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Buenos Aires departing on 7/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Delta flights from Portland to Buenos Aires
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Air Canada flights from Portland to Buenos Aires
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How to get the cheapest flight ticket from Portland to Buenos Aires
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Portland and Buenos Aires?
What is the cheapest month to fly to Buenos Aires?
The cheapest month to fly to Buenos Aires from Portland is in August. Flight prices, which tend to average around $1,182, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of August, then book flights to Buenos Aires from Portland during September instead. Flights to Buenos Aires in September, while not as cheap as those in August, still average around $1,215.
What is the cheapest day to depart on your flight to Buenos Aires?
On average, the least expensive day to fly to Buenos Aires from Portland is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,253. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Saturday is $1,566.
What is the cheapest time of day to depart on your flight to Buenos Aires?
Our most recent data shows that the best time of day to fly to Buenos Aires is in the afternoon. Flights from Portland to Buenos Aires during this time can be as low as $1,106. Try not to purchase tickets at noon because they tend to be around $1,427. Of course, these prices can vary depending on the time of year and what airport you fly to.
How far in advance should I book a flight to Buenos Aires?
You are more likely to see cheaper flights to Buenos Aires from Portland when booking 22 weeks ahead of your departure date. In general, you can expect to find flights to Buenos Aires for around $1,354 when searching 22 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buenos Aires from Portland for as low as $1,164 on momondo.
What is the cheapest airline that flies from Portland to Buenos Aires?
Air Canada, Delta, and LATAM Airlines are the most popular carriers operating from Portland to Buenos Aires
What airlines fly to Buenos Aires?
Delta, United Airlines and American Airlines are the top three most popular airlines that fly to Buenos Aires from Portland according to our data. Delta is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Buenos Aires. Keep in mind that there are 4 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.
When to book flights from Portland to Buenos Aires
Cheap Portland to Buenos Aires (PDX to BUE) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland to Buenos Aires
How far is Portland to Buenos Aires by plane?
Portland and Buenos Aires are 6830.7 mi apart from one another. By plane, this route typically takes 15h 01m.
When did momondo last update prices for flights from Portland Airport to Buenos Aires?
Prices for flights from Portland Airport to Buenos Aires are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to Buenos Aires?
The number of operators available for flights from Portland Airport to Buenos Aires is 4 as of June 2025.
How old do you have to be to fly from Portland Airport to Buenos Aires?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The travel and health documents you'll need for your trip to Buenos Aires may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buenos Aires. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Portland to Buenos Aires?
momondo data reveals that the most frequently booked airline on the route from Portland to Buenos Aires is Delta, representing 35% of all bookings. The subsequent popular airlines are American Airlines at 31%, United Airlines at 26%, and LATAM Airlines at 8%.
Best airlines flying from Portland to Buenos Aires
Compare and see reviews for airlines that fly from Portland to Buenos Aires with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $1,060 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $1,113 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $1,123 | Free Cancellation | Rating 7.5 1,785 reviews | |||
| PriceFrom $1,125 | Free Cancellation | Rating 7.4 8,790 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Portland to Buenos Aires?
Finding the right flight to Buenos Aires from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.
Can I find flights from Portland to Buenos Aires with flexible booking policies on momondo?
Yes. All flights to Buenos Aires from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Portland to Buenos Aires?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Buenos Aires.
I’m not ready to book a flight from Portland to Buenos Aires right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Portland to Buenos Aires now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Buenos Aires and let you know when they change.