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812 € Cheap Flights from Seattle / Tacoma International to Buenos Aires

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      Travellers and cabin class, 1 Adult, Economy

      Compare Seattle / Tacoma International to Buenos Aires flight deals

      Find the cheapest month or even day of the year to fly to Buenos Aires

      Book the best Buenos Aires fare with no extra fees

      Flight deals from Seattle / Tacoma International to Buenos Aires

      Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International Airport to Buenos Aires? If you want to travel next month, return fares start from 846 €. Find the lowest prices on one-way and return tickets right here.
      Buenos Aires.812 € per passenger.Departing Mon, 9 Nov, returning Tue, 17 Nov.Return flight with Frontier Airlines and Arajet.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Mon, 9 Nov, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Tue, 17 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 812 €, select.
      Buenos Aires.813 € per passenger.Departing Sun, 4 Oct, returning Mon, 2 Nov.Return flight with Alaska Airlines and JetSmart.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Sun, 4 Oct, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with JetSmart, departs from Buenos Aires Jorge Newbery on Mon, 2 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 813 €, select.
      Buenos Aires.844 € per passenger.Departing Sun, 15 Nov, returning Tue, 1 Dec.Return flight with Frontier Airlines and JetSmart.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Sun, 15 Nov, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with JetSmart, departs from Buenos Aires Jorge Newbery on Tue, 1 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 844 €, select.
      Buenos Aires.846 € per passenger.Departing Sun, 4 Oct, returning Tue, 20 Oct.Return flight with Alaska Airlines and Arajet.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Sun, 4 Oct, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Tue, 20 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 846 €, select.
      Buenos Aires.867 € per passenger.Departing Tue, 1 Dec, returning Sat, 12 Dec.Return flight with Alaska Airlines and JetSmart.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Tue, 1 Dec, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with JetSmart, departs from Buenos Aires Ministro Pistarini on Sat, 12 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 867 €, select.
      Buenos Aires.879 € per passenger.Departing Wed, 21 Oct, returning Thu, 10 Dec.Return flight with Frontier Airlines and Arajet.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Wed, 21 Oct, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Thu, 10 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 879 €, select.
      Buenos Aires.904 € per passenger.Departing Sun, 28 Feb, returning Mon, 15 Mar.Return flight with Volaris and Arajet.Outbound indirect flight with Volaris, departs from Seattle / Tacoma International on Sun, 28 Feb, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Mon, 15 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 904 €, select.
      Buenos Aires.931 € per passenger.Departing Tue, 29 Sep, returning Wed, 7 Oct.Return flight with Frontier Airlines and Copa.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Tue, 29 Sep, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Copa, departs from Buenos Aires Ministro Pistarini on Wed, 7 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 931 €, select.
      Buenos Aires.952 € per passenger.Departing Tue, 29 Sep, returning Thu, 26 Nov.Return flight with Frontier Airlines and Arajet.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Tue, 29 Sep, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Thu, 26 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 952 €, select.
      Buenos Aires.987 € per passenger.Departing Sat, 16 Jan, returning Tue, 2 Feb.Return flight with Alaska Airlines and JetSmart.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Sat, 16 Jan, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with JetSmart, departs from Buenos Aires Ministro Pistarini on Tue, 2 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 987 €, select.
      Buenos Aires.996 € per passenger.Departing Mon, 12 Oct, returning Mon, 1 Feb.Return flight with Alaska Airlines and Arajet.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Mon, 12 Oct, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Mon, 1 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 996 €, select.
      Buenos Aires.996 € per passenger.Departing Sun, 3 Jan, returning Mon, 25 Jan.Return flight with Alaska Airlines and JetSmart.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Sun, 3 Jan, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with JetSmart, departs from Buenos Aires Ministro Pistarini on Mon, 25 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 996 €, select.
      Buenos Aires.1.011 € per passenger.Departing Sun, 7 Feb, returning Tue, 23 Feb.Return flight with Alaska Airlines and Arajet.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Sun, 7 Feb, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Tue, 23 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 1.011 €, select.
      Buenos Aires.1.016 € per passenger.Departing Tue, 13 Apr, returning Fri, 23 Apr.Return flight with Volaris and Arajet.Outbound indirect flight with Volaris, departs from Seattle / Tacoma International on Tue, 13 Apr, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with Arajet, departs from Buenos Aires Ministro Pistarini on Fri, 23 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 1.016 €, select.
      Buenos Aires.1.039 € per passenger.Departing Sun, 1 Nov, returning Sun, 31 Jan.Return flight with Alaska Airlines and JetSmart.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Sun, 1 Nov, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with JetSmart, departs from Buenos Aires Jorge Newbery on Sun, 31 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 1.039 €, select.
      Buenos Aires.1.050 € per passenger.Departing Mon, 28 Dec, returning Sun, 17 Jan.Return flight with Frontier Airlines and JetSmart.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Mon, 28 Dec, arriving in Buenos Aires Ministro Pistarini.Inbound indirect flight with JetSmart, departs from Buenos Aires Jorge Newbery on Sun, 17 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 1.050 €, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Seattle / Tacoma International to Buenos Aires found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Seattle / Tacoma International to Buenos Aires

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to Buenos Aires flights are currently cheapest in November.
      Sep
      from 1.114 €
      Oct
      from 846 €
      Nov
      from 812 €
      Dec
      from 867 €
      Jan
      from 996 €
      Feb
      from 1.011 €
      Mar
      from 1.060 €
      Apr
      from 1.016 €
      May
      from 1.120 €
      Jun
      from 1.277 €
      Jul
      from 1.157 €
      Aug
      Find prices

      Alternative Seattle / Tacoma International to Buenos Aires routes

      Looking for the cheapest, fastest or easiest route from Seattle / Tacoma International to Buenos Aires? You could fly into the following airports instead.

      Buenos Aires Jorge Newbery

      7km from central Buenos Aires
      Closest
      from 854 €
      Search flights

      Buenos Aires Ministro Pistarini

      28km from central Buenos Aires
      Cheapest
      from 812 €
      Search flights

      Seattle to Buenos Aires: Flight information

      The things to know before you go.
      Cheapest flight found812 €
      Cheapest month to flyNovember

      Finding cheap flights from Seattle / Tacoma International to Buenos Aires: Frequently asked questions

      There are 2 airports in Buenos Aires: Buenos Aires Jorge Newbery and Buenos Aires Ministro Pistarini.
      The best price we found for a return flight from Seattle / Tacoma International to Buenos Aires is 812 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Seattle / Tacoma International to Buenos Aires. But we found flights with one or more stops from 812 €.
      As of September 2026, there are no flights flying from Seattle / Tacoma International to Buenos Aires.
      The cheapest month to fly from Seattle / Tacoma International to Buenos Aires is usually November.
      If you're flying from Seattle / Tacoma International Airport, the cheapest airport near Buenos Aires is Buenos Aires Ministro Pistarini – which is 27.7 km away from the centre of Buenos Aires. We've found flights into this airport from 812 €.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Buenos Aires on Monday, 9 November 2026.
      No airlines currently offer direct flights between Seattle / Tacoma International Airport and Buenos Aires. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Buenos Aires but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Buenos Aires is around 40 days in advance, so don’t leave your flight to the last minute.

      In September, the average temperature is usually around 15°C. January is typically the warmest month in Buenos Aires, when it usually averages around 30°C. You can expect the least rain in June. The coldest month is July, with temperatures averaging 7°C. The rainiest month is March.
      Currently, Frontier Airlines offers the cheapest flight tickets to Buenos Aires.

      Travelling from Seattle-Tacoma International Airport (SEA) to Buenos Aires: what you need to know

      • Buenos Aires is five hours ahead of Seattle, where Seattle-Tacoma International Airport is located. Buenos Aires runs on the UTC-3 timezone.

      • To avoid missing your SEA to Buenos Aires flight, leave enough time for things like check-in and baggage drop. Arriving two hours ahead of international departures and one hour before domestic flights is the standard rule.

      • Flying over a peak time like July? School holidays and other popular periods can mean longer queues at security. Be extra cautious and get there up to four hours before an international flight and two hours before domestic departures.

      • Consider adding a stopover to potentially land a cheaper plane ticket from SEA to Buenos Aires. Simply deselect 'Direct flights only' during your search. Take a detour (and maybe pocket some savings) by stopping at one of these airports:

        • Dallas Fort Worth International Airport (DFW)

        • Houston George Bush Intercontinental Airport (IAH)

        • New York John F. Kennedy International Airport (JFK)

      • Located around 18 kilometres from central Seattle, SEA can be reached in about 25 minutes by car, depending on traffic. The journey on public transport takes roughly 35 minutes.

      • Have an early flight from Seattle-Tacoma International Airport to Buenos Aires? Avoid the last-minute rush to the terminal (and sneak in some extra precious sleep) by choosing one of these hotels close to SEA:

      • Seattle-Tacoma International Airport gets high marks for on-time performance. 80% of flights that depart SEA arrive at their destination on time.

      How to find the cheapest flights from Seattle-Tacoma International Airport (SEA) to Buenos Aires

      • 359 € is currently the lowest price for a one-way Seattle-Tacoma International Airport to Buenos Aires flight. A return plane ticket starts from 812 €. These prices may change depending on demand.

      • Don't leave everything to the last moment. You're more likely to land cheap flights from SEA to Buenos Aires if you book early. Airlines often offer some excellent early bird rates.

      • The 'Whole month' search tool will show you the cheapest tickets from Seattle-Tacoma International Airport to Buenos Aires throughout the entire month. It's an easy way to find a bargain if your trip dates are flexible.

      • Save time searching for cheap flights from SEA to Buenos Aires by setting up a Price Alert. You'll get an email or notification through the app when fares go down.

      • Save on your flight from Seattle-Tacoma International Airport to Buenos Aires with the help of our filters. Select your preferred departure time, duration and airlines, then sort the results by 'Cheapest' to see the best deals.

      Airports in Buenos Aires

      Buenos Aires Jorge Newbery Airfield (AEP)

      • Buenos Aires Jorge Newbery Airfield (AEP) to the centre of Buenos Aires takes around 25 minutes to reach by car. The centre is roughly 8 kilometres away.

      • If you're taking public transport, expect a journey time of around 40 minutes.

      • The last thing you want is a lengthy journey to your hotel if you're landing late on a flight from Seattle-Tacoma International Airport to Buenos Aires. Stay at one of these accommodation options near AEP instead:

      • Booking your ride from Buenos Aires Jorge Newbery Airfield about one week in advance of your flight from SEA to Buenos Aires can help you lock in the best possible rate.

      Buenos Aires Ministro Pistarini Intl Airport (EZE)

      • Central Buenos Aires is about 32 kilometres from Buenos Aires Ministro Pistarini Intl Airport (EZE). After your flight from Seattle-Tacoma International Airport to Buenos Aires has landed and you've navigated your way to arrivals, expect a drive of about 30 minutes.

      • You can expect the trip to take about 1 hour 15 minutes on public transport.

      • You'll find some comfortable places to park your luggage (and yourself) near EZE. Unwind and get cosy after your SEA to Buenos Aires flight at one of these perfectly located options:

      • Get what you want, not just what's left over. Securing your ride from EZE one week in advance often means better prices and a greater selection of vehicles.

      Best time to go to Buenos Aires

      • It's time to figure out your trip dates for your flight from Seattle-Tacoma International Airport to Buenos Aires. September is the most popular month to visit Buenos Aires. If you prefer a more low-key vibe, go in December.

      • Before locking in your Seattle-Tacoma International Airport to Buenos Aires plane ticket, think about what kind of weather works for you. January is the warmest month in Buenos Aires, with temperatures ranging from 18ºC (64ºF) to 32ºC (90ºF).

      • Search for cheap tickets from SEA to Buenos Aires in July if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 5ºC (41ºF) and 16ºC (61ºF) on average.

      More about Buenos Aires

      • Start your Buenos Aires trip off on the right foot by choosing the ideal place to stay. Once you've booked your flight from Seattle-Tacoma International Airport to Buenos Aires, browse our range of hotels including:

      • Every great holiday has to include some sightseeing. El Ateneo Grand Splendid, Teatro Colon and Recoleta Cemetery are essential stops on your Buenos Aires itinerary.

      Explore more of Argentina

      • You've done Buenos Aires, now it's time to discover more of Argentina. Journey around 274 kilometres northwest to Rosario to tick off its leading attractions. From Casa Natal Che Guevara to Monumento al Che Guevara and Casa Natal de Lionel Messi, you'll have a packed itinerary ahead.

      • If you're interested in discovering another great destination in Argentina, consider Mar Del Plata, roughly 386 kilometres south of Buenos Aires. Teatro Colon, Playa Popular and Aquasol Water Park are among the biggest draws.

      Plan the rest of your trip from Seattle to Buenos Aires

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.