To Buenos Aires

Cheap Flights from Seattle to Buenos Aires

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Deals from

Seattle

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

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Seattle to Buenos Aires

Explore current cheapest deals departing from Seattle to Buenos Aires

Round trip

Sort by: Cheapest

September 3 - September 24

Cheapest

SEA - Buenos Aires

$1,138

$931

Round trip

September 3 - September 23

SEA - Buenos Aires

$1,138

$942

Round trip

September 5 - September 24

SEA - Buenos Aires

$1,143

$972

Round trip

July 5 - July 13

Earliest

SEA - Buenos Aires

$1,253

$988

Round trip

July 6 - July 13

SEA - Buenos Aires

$1,258

$991

Round trip

July 5 - July 8

Earliest

SEA - Buenos Aires

$1,329

$993

Round trip

July 5 - July 11

Earliest

SEA - Buenos Aires

$1,258

$993

Round trip

July 5 - July 9

Best

Earliest

SEA - Buenos Aires

$1,327

$993

Round trip

July 6 - July 8

Best

SEA - Buenos Aires

$1,331

$996

Round trip

July 6 - July 11

SEA - Buenos Aires

$1,277

$996

Round trip

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Route Intelligence — 486,190 Searches this Week

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 a higher median at $1084, indicating that choosing your travel month can significantly impact the overall cost of your journey.

Fares for flights from Seattle to Buenos Aires typically range from $943–$1213, with a median price of $1111. Right now, current fares are below the typical level for this route. A substantial 67% of recent fares have been classified as a good price, suggesting that favorable deals are frequently available. New deals show up several times a week, making it worthwhile to monitor prices.

When flying from Seattle to Buenos Aires, most itineraries connect at least once. There are no direct flights from Seattle to Buenos Aires, meaning all journeys will involve connections. For connecting itineraries, the typical number of stopovers is 4, which is an important consideration for travel planning.

A typical journey from Seattle to Buenos Aires takes approximately 50h 10m, including connections. This duration accounts for the multiple stopovers common on this long-haul route. Given the significant travel time, planning for layovers and overall journey length is essential.

The distance between Seattle and Buenos Aires is approximately 11,130 kilometers. This classifies the route as a long-haul journey, indicating a significant distance that typically involves extended flight times and often multiple connections.

How much is a round trip from Seattle to Buenos Aires

Regular price: $1,004 - $1,539

Prices are currently below the regular range.

The regular price range for flights from Seattle to Buenos Aires is typically between $1004 and $1539. The current lowest deal is $931 with Frontier Airlines, for travel from Sep 3 to Sep 24.

now $931

Low $1,004

High $1,539

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

Alaska Airlines, Inc.

Volaris

United Airlines

Last-minute flights going from Seattle to Buenos Aires

Thu, Jun 18

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

United Airlines

$1,443

$1,892

One-way

Thu, Jun 18

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

United Airlines

$1,323

$1,918

One-way

Fri, Jun 19

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Frontier Airlines

$1,337

$1,103

One-way

Fri, Jun 19

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Frontier Airlines

$1,346

$1,186

One-way

Sat, Jun 20

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Volaris

$1,377

$1,339

One-way

Sun, Jun 21

⌛ Last-Minute

SEA - Buenos Aires

Seattle (SEA) - Buenos Aires (EZE)

Volaris

$1,377

$1,080

One-way

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

3 nights

Jul 5 - Jul 8

$1,329 → $993

25%

2 nights

Jul 6 - Jul 8

$1,331 → $996

25%

4 nights

Jul 5 - Jul 9

$1,327 → $993

25%

3 nights

Jul 6 - Jul 9

$1,329 → $996

25%

Popular Airports to fly from Seattle to Buenos Aires

Seattle - Buenos Aires route insights

💸 Price insights

Recent fares are below the typical level at $931.

Recent fares from Seattle to Buenos Aires are below the typical level, with deals around $931.

📅 Best time to fly

July is historically the cheapest month to fly at $691.

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

⏱️ Flight duration

Flights to Buenos Aires typically take 50h 10m.

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

✈️ Airlines & availability

Connecting flights are dominant for this route.

This route primarily features connecting flights, with a median of 4 stopovers for deals.

🏆 Airline highlight

Frontier Airlines has 39 deals for this route.

Frontier Airlines has the most deals for flights from Seattle to Buenos Aires.

🎯 Booking tip

Good prices are available 67% of the time.

Historically, good prices for flights from Seattle to Buenos Aires are available 67% of the time.

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

Aeroparque Jorge Newbery (AEP)

Aeroparque Jorge Newbery is a convenient arrival option for reaching Buenos Aires.

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

💸 Flights from ~$940

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

Rosario – Islas Malvinas International (ROS)

Cheapest

ROS is the largest regional airport near Buenos Aires within Argentina, well-connected by highway.

📍 ~280 km from destination city (reachable by car or bus)

💸 Flights from ~$908

Astor Piazzolla International (MDQ)

MDQ is a major domestic hub with consistent service to other Argentine cities, accessible via multiple transport modes.

📍 ~400 km from destination city (reachable by train, bus, or car)

💸 Flights from ~$1276

Capitán de Corbeta Carlos A. Curbelo International (PDP)

PDP offers international airport status with direct links to regional capitals and high-quality facilities.

📍 ~235 km from destination city (reachable by car)

💸 Flights from ~$1333

Sauce Viejo (SFN)

SFN is a secondary domestic alternative within reasonable driving distance, useful for specific domestic connections.

📍 ~435 km from destination city (reachable by car)

💸 Flights from ~$1317

Business & First Class Flight Deals to Buenos Aires

Buenos Aires, Argentina

68% AI deal score

$10,098

From SEA

Elite

Nov 21

Buenos Aires, Argentina

68% AI deal score

$10,173

Frequently Asked Questions About Flights to Buenos Aires

To find more affordable flights, consider being flexible with your travel dates and times. Using flight comparison sites can help you see various options. Sometimes, flying on weekdays or during off-peak seasons may offer better prices.

Booking in advance often provides more competitive prices, especially for international routes. However, prices can fluctuate, so monitoring fares over time may be beneficial. There isn't a single 'best' time, as it can vary.

Comparing nearby airports at both your origin and destination can sometimes reveal different pricing. While it may add travel time, it could potentially lead to savings. Always consider the total cost and convenience.

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