Cheap Flights from Buenos Aires to Seattle from $624

Frequently Asked Questions

• What are the cheapest flights from Buenos Aires to Seattle (BUE-SEA)?

  Based on Trip.com data, Aerolineas Argentinas offers one-way fares as low as $624 on Cheapest nonstop routes (e.g. EZE to SEA on Sun, Aug 30), while Delta Air Lines offers Cheapest nonstop round-trips from $1,583 departing on Mon, Jul 20 and returning on Wed, Jul 22.

• Which airlines offer direct flights from Buenos Aires to Seattle?

  At the moment, you can catch a nonstop flight from Buenos Aires to Seattle with the following airlines, including: Aerolineas Argentinas Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Buenos Aires to Seattle?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Buenos Aires to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Buenos Aires to Seattle?

  To find best deals on flights from Buenos Aires to Seattle, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Aug 30, with one-way flights priced at just $624.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Aerolineas Argentinas.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Seattle travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Buenos Aires (BUE) to Seattle (SEA) the cheapest?

  The cheapest months to fly from Buenos Aires to Seattle is November, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Buenos Aires to Seattle on?

  After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Buenos Aires to Seattle on July 29, 2026 with LATAM Airlines, with prices starting at $719.

• Which airports can I fly to for Seattle from Buenos Aires?

  You can land at any one of the following hubs in Seattle, with Ezeiza International Airport to Seattle-Tacoma International Airport (EZE-SEA) is by far the most common option on this route: Seattle-Tacoma International Airport (SEA) King County (Boeing Field) International Airport (BFI) Kenmore Air Harbor Seaplane Base (LKE).

• Is there any time difference between Buenos Aires and Seattle?

  The time difference between Seattle and Buenos Aires is 5h.

• How do I change or cancel my ticket from Buenos Aires to Seattle?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.