Are direct flights from Seattle to Buenos Aires always the best option?

Direct flights offer convenience by reducing travel time and avoiding layovers. However, they are not always the most budget-friendly choice. Flights with one or more stops can sometimes be considerably cheaper, depending on the route and timing.

Can flexible travel dates help on Seattle to Buenos Aires flights?

Yes, being flexible with your travel dates can often lead to finding more affordable flights. Prices can vary significantly between different days of the week or even within the same month. Flying during off-peak seasons or weekdays may offer better value.

What extra costs should I check before booking Seattle to Buenos Aires flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Factor these into your total travel budget.

Flights From Seattle

To Buenos Aires

Cheap Flights from Seattle to Buenos Aires

Browse current best options from Seattle. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Seattle

RatePunk searches hundreds of travel sites at once for deals on flights to Buenos Aires

Prices updated 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from Seattle to Buenos Aires

Explore current cheapest deals departing from Seattle to Buenos Aires

2026-09-14 – 2026-10-05
SEA - Buenos Aires
90% AI deal score
$1,124
$816
Round trip
2026-09-24 – 2026-10-05
SEA - Buenos Aires
90% AI deal score
$1,144
$816
Round trip
2026-09-14 – 2026-10-01
SEA - Buenos Aires
88% AI deal score
$1,126
$826
Round trip
2026-09-24 – 2026-10-01
SEA - Buenos Aires
89% AI deal score
$1,183
$826
Round trip
2026-09-05 – 2026-10-01
SEA - Buenos Aires
87% AI deal score
$1,095
$843
Round trip
2026-09-05 – 2026-09-18
SEA - Buenos Aires
87% AI deal score
$1,114
$852
Round trip
2026-09-01 – 2026-09-15
SEA - Buenos Aires
85% AI deal score
$1,052
$871
Round trip
2026-09-01 – 2026-09-08
SEA - Buenos Aires
89% AI deal score
$1,158
$874
Round trip
2026-09-16 – 2026-09-28
SEA - Buenos Aires
88% AI deal score
$1,131
$875
Round trip
2026-09-09 – 2026-09-30
SEA - Buenos Aires
86% AI deal score
$1,098
$877
Round trip

Seattle to Buenos Aires: Overview

Insights for flights from Seattle to Buenos Aires

For travelers planning cheap flights from Seattle to Buenos Aires, July stands out as the most economical month, with a median fare of $691. June also offers competitive pricing, with a median fare of $712. April presents another option, with a median fare of $1084.

Fares for this route typically range from $1043 to $1283, with a median price of $1174. Right now, current fares are near the typical level. Only 8% of recent fares were classified as a good price, indicating that deals are somewhat uncommon. New deals show up several times a week, so setting up a price alert could be beneficial.

There are no direct flights from Seattle to Buenos Aires; most itineraries connect at least once. For connecting flights, the typical number of stopovers is 3.

A typical journey from Seattle to Buenos Aires, including connections, takes approximately 50h 10m. This reflects the multi-stop nature of the route.

The distance between Seattle and Buenos Aires is approximately 11,130 kilometers, classifying this as a long-haul international journey.

How much is a round trip from Seattle to Buenos Aires

Regular price: $1,003 - $1,549

Prices are currently below the regular range.

The regular price range for flights from Seattle to Buenos Aires is $1003 to $1549. The current lowest deal is $811 with Frontier Airlines for travel from Sep 16-Sep 28.

now $811

Low $1,003

High $1,549

The cheapest time to fly from Seattle to Buenos Aires

The cheapest month to fly from Seattle to Buenos Aires is July, with a median price of $691. The most expensive month is March, with a median price of $2334. Prices are generally lower from April to November.

July

Cheapest

Flights from $691

March

Most Expensive

Flights from $2,334

Mar

Apr

May

Jun

Jul

Sep

Oct

Nov

Direct flights from Seattle to Buenos Aires

Frontier Airlines

LATAM Chile

Alaska Airlines, Inc.

Maersk Air

Last-minute flights going from Seattle to Buenos Aires

Mon, Aug 3

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Volaris

$1,498

$1,343

One-way

Mon, Aug 3

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Volaris

$1,507

$1,348

One-way

Tue, Aug 4

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Frontier Airlines

$1,494

$1,379

One-way

Wed, Aug 5

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Volaris

$1,356

$1,173

One-way

Wed, Aug 5

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (AEP)

Frontier Airlines

$1,297

$1,248

One-way

Wed, Aug 5

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Alaska Airlines, Inc.

$1,475

$1,359

One-way

Biggest price drops on these dates for flights from Seattle to Buenos Aires

4 nights

Aug 10 - Aug 14

$1,417 → $1,059

25%

6 nights

Aug 19 - Aug 25

$1,282 → $927

28%

13 nights

Aug 25 - Sep 7

$1,200 → $852

29%

14 nights

Aug 25 - Sep 8

$1,199 → $855

29%

Popular Airports to fly from Seattle to Buenos Aires

Seattle - Buenos Aires route insights

💸 Price insights

Recent fares are near the typical level

Recent fares from Seattle to Buenos Aires are near the typical level at $811.

📅 Best time to fly

Fly in July for prices as low as $691

Historically, July is the cheapest month to fly from Seattle to Buenos Aires, with a median price of $691.

⏱️ Flight duration

Typically 50h 10m duration

Flights from Seattle to Buenos Aires typically take 50h 10m, with 3 stopovers.

✈️ Airlines & availability

Connecting flights only

There are no direct flights available on this route; connecting flights are dominant.

🏆 Airline highlight

Frontier Airlines offers deals

Frontier Airlines has historically offered 61 deals on connecting flights for this route.

🎯 Booking tip

Deals appear regularly

Deals for flights from Seattle to Buenos Aires appear regularly, about every 30 days.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International offers flights to Buenos Aires, providing a key departure point for your journey.

📍 ~25 km from Seattle city center (reachable by car or train)

💸 Flights from ~$931

Boeing Field (BFI)

Boeing Field is an alternative departure option for flights to Buenos Aires from the Seattle area.

📍 ~10 km from Seattle city center (reachable by car)

💸 Flights from ~$1451

Kenmore Air Harbor Seaplane Base (LKE)

Kenmore Air Harbor Seaplane Base can be considered for flights to Buenos Aires, offering another Seattle departure point.

📍 ~5 km from Seattle city center (reachable by car)

💸 Flights from ~$2425

Buenos Aires main airports to arrive at

Ministro Pistarini International (EZE)

Cheapest

Ministro Pistarini International Airport is a key arrival point for flights to Buenos Aires.

📍 ~30 km from Buenos Aires city center (reachable by car)

💸 Flights from ~$899

Airports nearby Buenos Aires used as alternative

Carrasco International (MVD)

Consider MVD as a major international hub with significant global connectivity, easily accessible from Buenos Aires.

📍 ~205 km from destination city (reachable by ferry)

💸 Flights from ~$1088

Business & First Class Flight Deals to Buenos Aires

93% AI deal score

$5,129

$2,835

Save $2,294

Frequently Asked Questions About Flights to Buenos Aires

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can often reveal better deals. Setting up price alerts may also help you catch drops in fares.

Booking in advance is often recommended, especially for international routes. However, prices can fluctuate, so monitoring fares over time may help you identify a good booking window. Mid-week bookings might sometimes offer slight advantages.

Comparing nearby airports at both your origin and destination can sometimes uncover more economical flight options. While it may add to your ground travel, the savings on airfare can occasionally be significant. Always factor in the total cost and convenience.

Related routes

More routes from Seattle

Flights from Seattle to Burbank Flights from Seattle to Cairo Flights from Seattle to Cancún Flights from Seattle to Cebu Flights from Seattle to Chicago Flights from Seattle to Christchurch Flights from Seattle to Cincinnati Flights from Seattle to Cleveland Flights from Seattle to Copenhagen Flights from Seattle to Guangzhou Flights from Seattle to Kochi Flights from Seattle to Kolkata

Flights to Buenos Aires from other cities

Flights from Salta to Buenos Aires Flights from Salto to Buenos Aires Flights from Salvador to Buenos Aires Flights from San Juan to Buenos Aires Flights from San Miguel de Tucumán to Buenos Aires Flights from Santa Fe to Buenos Aires Flights from Seoul to Buenos Aires Flights from Singapore to Buenos Aires Flights from Sydney to Buenos Aires Flights from Uyuni to Buenos Aires Flights from Venice to Buenos Aires Flights from Vitória, Espírito Santo to Buenos Aires

Seattle to Buenos Aires: Overview

Insights for flights from Seattle to Buenos Aires

There are no direct flights from Seattle to Buenos Aires; most itineraries connect at least once. For connecting flights, the typical number of stopovers is 3.

A typical journey from Seattle to Buenos Aires, including connections, takes approximately 50h 10m. This reflects the multi-stop nature of the route.

The distance between Seattle and Buenos Aires is approximately 11,130 kilometers, classifying this as a long-haul international journey.

How much is a round trip from Seattle to Buenos Aires

Regular price: $1,003 - $1,549

Prices are currently below the regular range.

The regular price range for flights from Seattle to Buenos Aires is $1003 to $1549. The current lowest deal is $811 with Frontier Airlines for travel from Sep 16-Sep 28.

now $811

Low $1,003

High $1,549

The cheapest time to fly from Seattle to Buenos Aires

July

Cheapest

Flights from $691

March

Most Expensive

Flights from $2,334

Mar

Apr

May

Jun

Jul

Sep

Oct

Nov

Direct flights from Seattle to Buenos Aires

Frontier Airlines

LATAM Chile

Alaska Airlines, Inc.

Maersk Air

Last-minute flights going from Seattle to Buenos Aires

Mon, Aug 3

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Volaris

$1,498

$1,343

One-way

Mon, Aug 3

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Volaris

$1,507

$1,348

One-way

Tue, Aug 4

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Frontier Airlines

$1,494

$1,379

One-way

Wed, Aug 5

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Volaris

$1,356

$1,173

One-way

Wed, Aug 5

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (AEP)

Frontier Airlines

$1,297

$1,248

One-way

Wed, Aug 5

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Alaska Airlines, Inc.

$1,475

$1,359

One-way

Biggest price drops on these dates for flights from Seattle to Buenos Aires

4 nights

Aug 10 - Aug 14

$1,417 → $1,059

25%

6 nights

Aug 19 - Aug 25

$1,282 → $927

28%

13 nights

Aug 25 - Sep 7

$1,200 → $852

29%

14 nights

Aug 25 - Sep 8

$1,199 → $855

29%

Popular Airports to fly from Seattle to Buenos Aires