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

Direct flights offer convenience by minimizing travel time and avoiding layovers, but they are not always the most budget-friendly choice. Flights with one or more stops can sometimes be significantly cheaper. Consider your priorities, such as cost versus travel duration, when making your decision.

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 depending on the day of the week or the time of year. Flying during off-peak seasons or on weekdays may result in lower fares.

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 meal costs. Some airlines may also charge for printing boarding passes at the airport. Being aware of these additional fees can help you accurately budget for your trip.

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 1 day ago

462 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Sep 15, 2026.)

Today’s best flight deals from Seattle to Buenos Aires

Explore current cheapest deals departing from Seattle to Buenos Aires

2026-10-04 – 2026-10-20
SEA - Buenos Aires
81% AI deal score
$1,125
$981
Round trip
2026-11-11 – 2026-11-18
SEA - Buenos Aires
78% AI deal score
$1,122
$1,000
Round trip
2026-10-05 – 2026-10-24
SEA - Buenos Aires
78% AI deal score
$1,115
$1,007
Round trip
2026-10-20 – 2026-11-10
SEA - Buenos Aires
78% AI deal score
$1,121
$1,023
Round trip
2026-10-20 – 2026-11-02
SEA - Buenos Aires
78% AI deal score
$1,140
$1,023
Round trip
2026-10-20 – 2026-11-04
SEA - Buenos Aires
78% AI deal score
$1,133
$1,023
Round trip
2026-10-22 – 2026-10-29
SEA - Buenos Aires
81% AI deal score
$1,183
$1,025
Round trip
2026-11-07 – 2026-11-16
SEA - Buenos Aires
77% AI deal score
$1,094
$1,033
Round trip
2026-10-20 – 2026-10-29
SEA - Buenos Aires
79% AI deal score
$1,152
$1,035
Round trip
2026-11-02 – 2026-11-15
SEA - Buenos Aires
74% AI deal score
$1,020
$1,038
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, the most economical time to fly is often July, with a median fare of $691. Another favorable month is June, where the median fare stands at $712. You can also find relatively lower prices in April, with a median fare of $1084.

Fares for flights from Seattle to Buenos Aires typically range from $1043 to $1283, with a median price of $1174. Right now, current fares are near the typical level for this route. Only 8% of recent fares were classified as a good price, indicating that finding significantly discounted tickets can be challenging. New deals for this route show up several times a week, so setting a price alert can be beneficial.

When flying from Seattle to Buenos Aires, most itineraries connect at least once, as 0% of recent fares were for direct flights. For itineraries that do include connections, the typical number of stopovers is 3.

A typical journey from Seattle to Buenos Aires, including connections, takes approximately 50h 10m. This reflects the long-haul nature of the route and the necessity of multiple stops between these two distant cities.

The distance between Seattle and Buenos Aires is approximately 11,130 kilometers, classifying this as a long-haul international route. This significant distance contributes to the extended travel times and the typical requirement for multiple connections.

How much is a round trip from Seattle to Buenos Aires

Regular price: $990 - $1,678

Prices are currently below the regular range.

Regular prices for flights from Seattle to Buenos Aires typically range from $990 to $1678. The current lowest deal is $981 with Alaska Airlines, Inc., for travel from Oct 4-Oct 20.

now $981

Low $990

High $1,678

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

Alaska Airlines, Inc.

Frontier Airlines

Copa Airlines

LATAM Chile

Last-minute flights going from Seattle to Buenos Aires

Fri, Sep 25

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (AEP)

Alaska Airlines, Inc.

$1,307

$1,313

One-way

Sun, Oct 4

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Alaska Airlines, Inc.

$1,126

$977

One-way

Mon, Oct 5

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Volaris

$1,115

$1,002

One-way

Mon, Oct 5

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Volaris

$1,134

$1,069

One-way

Mon, Oct 5

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Frontier Airlines

$1,222

$1,164

One-way

Tue, Oct 6

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Frontier Airlines, Maersk Air

$1,113

$955

One-way

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

9 nights

Mar 19 - Mar 28

$1,455 → $1,230

15%

4 nights

Sep 30 - Oct 4

$1,262 → $1,053

17%

2 nights

Dec 1 - Dec 3

$1,338 → $1,131

15%

14 nights

Dec 1 - Dec 15

$1,243 → $1,047

16%

Popular Airports to fly from Seattle to Buenos Aires

Seattle - Buenos Aires route insights

💸 Price insights

Recent fares are near the typical level.

Recent roundtrip fares from Seattle to Buenos Aires are near the typical level.

📅 Best time to fly

July is historically the cheapest month to fly.

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

⏱️ Flight duration

Flights typically take 50h 10m.

The median flight duration from Seattle to Buenos Aires is 50 hours and 10 minutes.

✈️ Airlines & availability

Connecting flights are dominant on this route.

Direct flights are not common; connecting flights are the dominant option for this route.

🏆 Airline highlight

Alaska Airlines, Inc. offers deals on this route.

Alaska Airlines, Inc. has historically offered deals from Seattle to Buenos Aires.

🎯 Booking tip

Deals appear regularly for this route.

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 is a convenient option for flights from Seattle to Buenos Aires.

📍 ~18 km from Seattle (reachable by car or train)

💸 Flights from ~$854

Buenos Aires main airports to arrive at

Ministro Pistarini International (EZE)

Cheapest

Ministro Pistarini International Airport is a good option for flights from Seattle to Buenos Aires.

📍 ~28 km from Buenos Aires city center (reachable by car)

💸 Flights from ~$934

Airports nearby Buenos Aires used as alternative

Carrasco International (MVD)

Carrasco International is a major international hub, easily accessible from Buenos Aires via frequent ferry services.

📍 ~225 km from Buenos Aires (reachable by ferry)

💸 Flights from ~$1,115

Business & First Class Flight Deals to Buenos Aires

Discover luxury on the budget with premium cabin class on flights from Seattle to Buenos Aires.

Elite

Best Elite deals to Buenos Aires

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From SEA

Elite

Dec 08

Buenos Aires, Argentina

93% AI deal score

$5,775

$3,230

Save $2,545

Aeroméxico, +1

Business Class

From SEA

Elite

Dec 08

Buenos Aires, Argentina

93% AI deal score

$5,760

$3,294

Save $2,466

Aeroméxico, +1

Business Class

From SEA

Elite

Dec 08

Buenos Aires, Argentina

93% AI deal score

$5,750

$3,319

Save $2,431

Aeroméxico, +1

Business Class

From SEA

Elite

Dec 08

Buenos Aires, Argentina

93% AI deal score

$5,658

$3,352

Save $2,306

Aeroméxico, +1

Business Class

From SEA

Elite

Dec 08

Buenos Aires, Argentina

93% AI deal score

$5,763

$3,406

Save $2,357

Aeroméxico, +1

Business Class

From SEA

Elite

Dec 08

Buenos Aires, Argentina

93% AI deal score

$5,763

$3,410

Save $2,353

Aeroméxico, +1

Business Class

From SEA

Elite

Dec 07

Buenos Aires, Argentina

92% AI deal score

$5,357

$3,255

Save $2,102

Alaska Airlines, Inc., +1

Business Class

From SEA

Elite

Dec 07

Buenos Aires, Argentina

92% AI deal score

$5,363

$3,320

Save $2,043

Alaska Airlines, Inc., +1

Business Class

From SEA

Elite

Dec 07

Buenos Aires, Argentina

92% AI deal score

$5,362

$3,345

Save $2,017

Alaska Airlines, Inc., +1

Business Class

From SEA

Elite

Dec 07

Buenos Aires, Argentina

92% AI deal score

$5,263

$3,378

Save $1,885

Alaska Airlines, Inc., +1

Business Class

From SEA

Elite

Dec 07

Buenos Aires, Argentina

92% AI deal score

$5,581

$3,408

Save $2,173

Alaska Airlines, Inc., +1

Business Class

From SEA

Elite

Dec 07

Buenos Aires, Argentina

92% AI deal score

$5,356

$3,431

Save $1,925

Alaska Airlines, Inc., +1

Business Class

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 platforms can often reveal better deals. Setting up price alerts may also help you catch drops in fares.

Booking in advance is often recommended for international flights, as prices may increase closer to the departure date. However, sometimes last-minute deals can appear, so it's useful to monitor price trends. Mid-week bookings can sometimes offer better rates than weekend purchases.

Comparing nearby airports can sometimes lead to more economical flight options, even if it means a slightly longer journey to your final destination. It's worth checking if alternative airports have different pricing structures or more competitive routes. Always factor in the additional travel time and cost to reach your primary destination from a different airport.

Related routes

More routes from Seattle

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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

How much is a round trip from Seattle to Buenos Aires

Regular price: $990 - $1,678

Prices are currently below the regular range.

Regular prices for flights from Seattle to Buenos Aires typically range from $990 to $1678. The current lowest deal is $981 with Alaska Airlines, Inc., for travel from Oct 4-Oct 20.

now $981

Low $990

High $1,678

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

Alaska Airlines, Inc.

Frontier Airlines

Copa Airlines

LATAM Chile

Last-minute flights going from Seattle to Buenos Aires

Fri, Sep 25

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (AEP)

Alaska Airlines, Inc.

$1,307

$1,313

One-way

Sun, Oct 4

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Alaska Airlines, Inc.

$1,126

$977

One-way

Mon, Oct 5

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Volaris

$1,115

$1,002

One-way

Mon, Oct 5

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Volaris

$1,134

$1,069

One-way

Mon, Oct 5

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Frontier Airlines

$1,222

$1,164

One-way

Tue, Oct 6

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Frontier Airlines, Maersk Air

$1,113

$955

One-way

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

9 nights

Mar 19 - Mar 28

$1,455 → $1,230

15%

4 nights

Sep 30 - Oct 4

$1,262 → $1,053

17%

2 nights

Dec 1 - Dec 3

$1,338 → $1,131

15%

14 nights

Dec 1 - Dec 15

$1,243 → $1,047

16%

Popular Airports to fly from Seattle to Buenos Aires

Seattle - Buenos Aires route insights

💸 Price insights

Recent fares are near the typical level.

Recent roundtrip fares from Seattle to Buenos Aires are near the typical level.

📅 Best time to fly

July is historically the cheapest month to fly.

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

⏱️ Flight duration

Flights typically take 50h 10m.

The median flight duration from Seattle to Buenos Aires is 50 hours and 10 minutes.

✈️ Airlines & availability

Connecting flights are dominant on this route.

Direct flights are not common; connecting flights are the dominant option for this route.

🏆 Airline highlight

Alaska Airlines, Inc. offers deals on this route.

Alaska Airlines, Inc. has historically offered deals from Seattle to Buenos Aires.

🎯 Booking tip

Deals appear regularly for this route.

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 is a convenient option for flights from Seattle to Buenos Aires.

📍 ~18 km from Seattle (reachable by car or train)

💸 Flights from ~$854

Buenos Aires main airports to arrive at

Ministro Pistarini International (EZE)

Cheapest

Ministro Pistarini International Airport is a good option for flights from Seattle to Buenos Aires.

📍 ~28 km from Buenos Aires city center (reachable by car)

💸 Flights from ~$934

Airports nearby Buenos Aires used as alternative

Carrasco International (MVD)

Carrasco International is a major international hub, easily accessible from Buenos Aires via frequent ferry services.

Buenos Aires, Argentina

92% AI deal score

$5,356

$3,431

Save $1,925

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to Buenos Aires

Cheap Flights from Seattle to Buenos Aires

Today’s best flight deals from Seattle to Buenos Aires

Seattle to Buenos Aires: Overview

Insights for flights from Seattle to Buenos Aires

How much is a round trip from Seattle to Buenos Aires

The cheapest time to fly from Seattle to Buenos Aires

Direct flights from Seattle to Buenos Aires

Last-minute flights going from Seattle to Buenos Aires

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

Popular Airports to fly from Seattle to Buenos Aires

Seattle - Buenos Aires route insights

Recent fares are near the typical level.

July is historically the cheapest month to fly.

Flights typically take 50h 10m.

Connecting flights are dominant on this route.

Alaska Airlines, Inc. offers deals on this route.

Deals appear regularly for this route.

Seattle main airports to depart from

Buenos Aires main airports to arrive at

Airports nearby Buenos Aires used as alternative

Business & First Class Flight Deals to Buenos Aires

Best Elite deals to Buenos Aires

Dec 08

Dec 08

Dec 08

Dec 08

Dec 08

Dec 08

Dec 07

Dec 07

Dec 07

Dec 07

Dec 07

Dec 07

Frequently Asked Questions About Flights to Buenos Aires

How can I find cheap flights from Seattle to Buenos Aires?

When should I book flights from Seattle to Buenos Aires?

Should I compare nearby airports for flights from Seattle to Buenos Aires?

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

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

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

Related routes

More routes from Seattle

Flights to Buenos Aires from other cities

Seattle to Buenos Aires: Overview

Insights for flights from Seattle to Buenos Aires

How much is a round trip from Seattle to Buenos Aires

The cheapest time to fly from Seattle to Buenos Aires

Direct flights from Seattle to Buenos Aires

Last-minute flights going from Seattle to Buenos Aires

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

Popular Airports to fly from Seattle to Buenos Aires

Seattle - Buenos Aires route insights

Recent fares are near the typical level.

July is historically the cheapest month to fly.

Flights typically take 50h 10m.

Connecting flights are dominant on this route.

Alaska Airlines, Inc. offers deals on this route.

Deals appear regularly for this route.

Seattle main airports to depart from

Buenos Aires main airports to arrive at

Airports nearby Buenos Aires used as alternative

Business & First Class Flight Deals to Buenos Aires

Best Elite deals to Buenos Aires

Dec 08

Dec 08

Dec 08

Dec 08

Dec 08

Dec 08

Dec 07

Dec 07

Dec 07

Dec 07

Dec 07

Dec 07

Frequently Asked Questions About Flights to Buenos Aires

How can I find cheap flights from Seattle to Buenos Aires?

When should I book flights from Seattle to Buenos Aires?

Should I compare nearby airports for flights from Seattle to Buenos Aires?