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Cheap flights from Seattle to Buenos Aires

SEA — BUE
28 Nov — 5 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Seattle to Buenos Aires

Popular in

December

Cheapest in

March

Average price

C$ 1,904
Highest demand for flights based on searches. 9% potential increase in price (C$ 293 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 77 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Best time to book a flight from Seattle to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Seattle with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

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?

To ensure you get the cheapest price possible for a flight from Seattle to Buenos Aires, you should look to book at least 34 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.

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

Currently, March is the cheapest month in which you can book a flight from Seattle to Buenos Aires (average of C$ 1,704). Flying from Seattle to Buenos Aires in December is currently the most expensive (average of C$ 2,684). 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.

Related info for your journey

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

    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.

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

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

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

    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.

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

    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.

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

    Currently, March is the cheapest month in which you can book a flight from Seattle to Buenos Aires (average of C$ 1,704). Flying from Seattle to Buenos Aires in December is currently the most expensive (average of C$ 2,684). 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.

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

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.

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

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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.

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