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Cheap flights from Seattle to Buenos Aires from C$ 1,091

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 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUE
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Seattle to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 February 2025.

Round-trip from

C$ 1,669

One-way from

C$ 1,091

Popular in

December

Cheapest in

October

Average price

C$ 2,041
Delta
  • Delta
  • 14/4-28/4
  • 2 total stops
  • 38h 32m total
  • Seattle to Buenos Aires
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Delta
  • Delta
  • 22/4
  • 1 total stop
  • 22h 15m total
  • Seattle to Buenos Aires
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 123 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 62 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Seattle to Buenos Aires

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 21 February 2025.

Wed 1/106:00 a.m.SEA - EZE
1 stop23h 45mDelta
Wed 15/108:10 p.m.EZE - SEA
1 stop20h 04mDelta
Deal found 20/2C$ 1,669
Mon 21/47:33 p.m.SEA - EZE
2 stops32h 27mUnited Airlines
Mon 12/59:00 p.m.EZE - SEA
2 stops25h 52mUnited Airlines
Deal found 20/2C$ 1,676
Tue 29/412:45 p.m.SEA - EZE
2 stops29h 26mCopa Airlines
Mon 12/512:06 a.m.EZE - SEA
2 stops28h 53mCopa Airlines
Deal found 19/2C$ 1,687
Wed 7/59:30 a.m.SEA - EZE
1 stop31h 55mAeromexico
Tue 13/511:25 p.m.EZE - SEA
1 stop24h 35mAeromexico
Deal found 20/2C$ 1,859
Mon 21/47:08 a.m.SEA - EZE
1 stop20h 52mMultiple Airlines
Sun 11/51:40 a.m.EZE - SEA
2 stops21h 43mMultiple Airlines
Deal found 20/2C$ 2,508

Find flights from Seattle to Buenos Aires within your budget

Customize your flight search to find flights from Seattle to Buenos Aires that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 21 February 2025.

Fly from

Seattle

Fly to

Buenos Aires

Route

Depart

Return

Price

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 14/4

9:25 a.m.-9:45 a.m.

1 stop20h 20m

Buenos Aires Ministro Pistarini

Mon 28/4

8:10 p.m.-10:22 a.m.

1 stop18h 12m

C$ 1,669

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 21/4

7:33 p.m.-8:00 a.m.

2 stops32h 27m

Buenos Aires Ministro Pistarini

Mon 12/5

9:00 p.m.-6:52 p.m.

2 stops25h 52m

C$ 1,676

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 29/4

12:45 p.m.-10:11 p.m.

2 stops29h 26m

Buenos Aires Ministro Pistarini

Mon 12/5

12:06 a.m.-12:59 a.m.

2 stops28h 53m

C$ 1,687

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Wed 7/5

9:30 a.m.-9:25 p.m.

1 stop31h 55m

Buenos Aires Ministro Pistarini

Tue 13/5

11:25 p.m.-8:00 p.m.

1 stop24h 35m

C$ 1,859

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 21/4

7:08 a.m.-8:00 a.m.

1 stop20h 52m

Buenos Aires Ministro Pistarini

Sun 11/5

1:40 a.m.-7:23 p.m.

2 stops21h 43m

C$ 2,508

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 22/4

7:30 a.m.-9:45 a.m.

1 stop22h 15m

C$ 1,091

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Sat 15/3

10:24 a.m.-9:55 p.m.

1 stop31h 31m

C$ 2,676

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Sat 15/3

11:59 p.m.-10:25 p.m.

3 stops42h 26m

C$ 7,180

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Buenos Aires

Get recent, data-driven insights about flights from Seattle to Buenos Aires including ideal travel times, pricing trends, and more.

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 14 February 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Buenos Aires, you should look to book at least 11 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, 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.

Rainfall in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average rainfall totals by month.

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.

Temperature in Buenos Aires by month

Plan your trip to Buenos Aires by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Buenos Aires

Get insights into the airlines that provide service to Buenos Aires. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buenos Aires. Reviews last updated 21 February 2025.
Delta
8.0
Very good
8,219 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Copa Airlines
7.6
Good
1,510 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aeromexico
7.5
Good
1,771 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,765 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    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.

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

    Flying on Delta is currently your cheapest option to Buenos Aires, with prices starting at C$ 1,669. Additional round-trip tickets that might be worth considering are offered by United Airlines and Copa Airlines, with the lowest prices starting at C$ 1,676 and C$ 1,687, respectively. You may be able to fly from Seattle to Buenos Aires for 15% less than the average price by searching for these airlines.

  • 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, 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.

See more FAQs

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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 21 February 2025.
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