Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Seattle to Buenos Aires
The cheapest flights right now
Seattle – Buenos Aires
Outbound – Nov 30, 2026
1 stop
20h 40m MIA
Return – Dec 15, 2026
1 stop
18h 6m ATL
$1,215
2 days ago
Seattle – Buenos Aires
Outbound – Nov 12, 2026
2 stops
22h 20m LAX
IAH
Return – Nov 26, 2026
1 stop
18h 30m IAH
$1,272
3 days ago
Seattle – Buenos Aires
Outbound – Nov 12, 2026
1 stop
18h 10m JFK
Return – Nov 26, 2026
1 stop
17h 35m ATL
$1,264
yesterday
Seattle – Buenos Aires
Outbound – Nov 30, 2026
1 stop
19h 15m IAH
Return – Dec 15, 2026
1 stop
18h 27m IAH
$1,326
2 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$910
Average price of a round trip
$943
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
43h34
A flight from Seattle to Buenos Aires takes on average 43h34.
Best time
July
According to user searches, the ideal month to go to Buenos Aires is July.
Tips for finding a cheap flight from Seattle to Buenos Aires
Check out our tips for booking your flight to Buenos Aires (Argentina) from Seattle (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is September, with an average flight ticket price of $930 (calculation over the last two years). The most touristic season corresponds to the months of September, November and October.
For the cheapest flights, it is advisable to buy your ticket at least 41 days before the departure date.
The airline offering the cheapest flight tickets is Frontier Airlines. A ticket from the airline Frontier Airlines to Buenos Aires costs on average $937.
The airlines that offer the most flights are .
Price of flight tickets from Seattle to Buenos Aires
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $910 to $989
- The average price of a flight ticket is about $943
- Prices are lowest for stays in the month of September
- The month in which booking a ticket is cheaper is: September
info departure city :
Seattle, USA
airports :
Kenmore Air Harbor Spb. (LKE)
Seattle-Tacoma International Airport (SEA)
Renton Municipal Airport (RNT)
King County International Airport (BFI)
local time :
Seattle is a city in the country USA, the time zone is [[timezone]]. In Seattle, it is currently {fromLocalTime}, the temperature is on average 17°C, with a minimum of 11°C and a maximum of 24°C.
The city of Seattle (SEA) has 4 airport(s): Kenmore Air Harbor Spb., Seattle-Tacoma, Renton and King County
destination info :
Buenos Aires, Argentina
airports :
Jorge Newbery Airfield (AEP)
Ministro Pistarini International Airport (EZE)
local time :
Buenos Aires is in the country Argentina, the time zone is [[timezone]]. In Buenos Aires, it is currently {toLocalTime}, the temperature is on average 14°C, with a minimum of 12°C and a maximum of 16°C.
The city of Buenos Aires (BUE) has 2 airport(s): Jorge Newbery and Ministro Pistarini
Useful info about Buenos Aires
What is the least touristic period to go to Buenos Aires?
If you want to visit Buenos Aires during the least touristic period, choose the month of July.
What is the most popular time to travel to Buenos Aires?
In Buenos Aires, the most popular month is September. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Seattle to Buenos Aires?
According to our data, it is recommended to book your flight 41 days before your departure. If you book your flight ticket 6 weeks before your departure, you may find a price below average. The cheapest day to book a flight from Seattle to Buenos Aires is Monday.
What are the arrival and destination airports when traveling between Seattle and Buenos Aires?
When you leave, you can leave from Seattle-Tacoma, and you will arrive at Jorge Newbery or Ministro Pistarini.
How to reach Seattle airport from the city centre?
The airport Kenmore Air Harbor Spb. is located 3 km, Seattle-Tacoma is located 16 km, Renton is located 16 km or King County is located 8 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Seattle to Buenos Aires?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Seattle and Buenos Aires?
In summer, the average temperature is 12°C in Buenos Aires and 18°C in Seattle. The average rainfall in summer is 75 mm in Buenos Aires and 38 mm in Seattle. In summer, it is warmer in Seattle and it rains less in Seattle. In winter, it is colder in Buenos Aires and it rains more in Seattle.
