Question 1

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

Accepted Answer

Flying on Copa Airlines is currently your cheapest option to Buenos Aires, with prices starting at C$ 1,423. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at C$ 1,464 and C$ 1,564, respectively. You may be able to fly from Seattle to Buenos Aires for 24% less than the average price by searching for these airlines.

Question 2

What are the cheapest airlines to fly from Seattle to Buenos Aires one-way?

Accepted Answer

C$ 747 is the cheapest one-way deal found within the past few days, from Copa Airlines. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from C$ 1,035 and C$ 1,070, respectively.

Question 3

How far ahead should I book a flight from Seattle to Buenos Aires?

Accepted Answer

To ensure you get the cheapest price possible for a flight from Seattle to Buenos Aires, you should look to book at least 25 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.

Question 4

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

Accepted Answer

Currently, November is the cheapest month in which you can book a flight from Seattle to Buenos Aires (average of C$ 816). Flying from Seattle to Buenos Aires in December is currently the most expensive (average of C$ 1,063). 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.

Question 5

What is the cheapest day to fly from Seattle to Buenos Aires?

Accepted Answer

Travelers seeking maximum savings on their Seattle to Buenos Aires flight should consider departing on Monday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

E

Accepted Answer

In terms of precipitation, rainfall in Buenos Aires ranges from 50.0 - 100.0 mm per month. January is typically the wettest month, when rainfall can reach 100.0 mm. June is typically the driest time to visit Buenos Aires when rainfall is around 50.0 mm.

Question 7

E

Accepted Answer

If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 11.0 C).

Question 8

How far in advance should I book a flight from Seattle to Buenos Aires?

Accepted Answer

Travellers have found it’s best to book a flight 26 days in advance to save up to 480% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 26 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to Buenos Aires 1-2 weeks in advance for as low as C$ 439, or C$ 2,384 for flights within the next 24 hours.

Question 9

What is the cheapest month to fly from Seattle to Buenos Aires?

Accepted Answer

August is one of the best times of the year to fly to Buenos Aires from Seattle. Prices for August average C$ 1,880 per person but you can even find prices for as low as C$ 911. The most expensive prices can be found in the month of December. Opting for a August flight can save you 19% on your journey compared to booking in December

Question 10

What is the cheapest time of day to fly from SEA to BUE?

Accepted Answer

When flying from Seattle to Buenos Aires, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Question 11

What airport do you fly from for flights from Seattle to Buenos Aires?

Accepted Answer

Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Buenos Aires. On average, Seattle/Tacoma Intl has 0 outbound flights to Buenos Aires per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 18.4 km from Seattle’s city centre.

Question 12

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

Accepted Answer

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

Question 13

How can I find direct flights from Seattle to Buenos Aires?

Accepted Answer

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

Question 14

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

Accepted Answer

Yes. Cheapflights offers flight deals from Seattle to Buenos Aires by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 15

How does Cheapflights help users find flights from Seattle to Buenos Aires?

Accepted Answer

Cheapflights helps you search for flights from Seattle to Buenos Aires via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Question 16

Why should you use Cheapflights to find cheap flight tickets from Seattle to Buenos Aires?

Accepted Answer

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Buenos Aires for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Question 17

Can Cheapflights find flights from Seattle to Buenos Aires with no change fees?

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Buenos Aires flexibly with Cheapflights today.

Question 18

Can Cheapflights notify me if prices for flights from Seattle to Buenos Aires become cheaper?

Accepted Answer

Of course! You can now track prices for flights from Seattle to Buenos Aires and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

Round-trip from	C$ 1,423
One-way from	C$ 747
Popular in	December
Cheapest in	August
Average price	C$ 2,026

Cheap flights from Seattle to Buenos Aires from C$ 747

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Seattle to Buenos AiresExplore the most affordable flight options available from Seattle to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Explore the most affordable flight options available from Seattle to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

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Best time to book a flight from Seattle to Buenos Aires

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

How far ahead should I book a flight from Seattle to Buenos Aires?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Buenos Aires. Price data was last updated on 25 July 2025.

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

Reviews of airlines servicing Buenos Aires

Read through reviews of airlines operating flights from Seattle to Buenos Aires, such as Delta,Copa Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Buenos Aires. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Seattle to Buenos Aires?

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

What are the cheapest airlines to fly from Seattle to Buenos Aires one-way?

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

How can I find direct flights from Seattle to Buenos Aires?

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

What is the cheapest month to book a flight from Seattle 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 31 July 2025.

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How does Cheapflights help users find flights from Seattle to Buenos Aires?

Why should you use Cheapflights to find cheap flight tickets from Seattle to Buenos Aires?

Can Cheapflights find flights from Seattle to Buenos Aires with no change fees?

Can Cheapflights notify me if prices for flights from Seattle to Buenos Aires become cheaper?

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Cheapest flights from Seattle to Buenos Aires
Explore the most affordable flight options available from Seattle to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.