Which layover airport has the shortest connection time from Seattle to Buenos Aires?

Dallas (DFW) has the shortest average layover time for this route: 1h 35m.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

How often are flights from Seattle to Buenos Aires delayed?

Historically, on average around 100% of flights between Seattle and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 99 minutes.

What is the most punctual flight time for Seattle to Buenos Aires flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Which airport is the most popular layover for flights between Seattle and Buenos Aires?

Atlanta (ATL) was the most common stop: 63% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Buenos Aires?

Flights via Houston (IAH) offer the lowest average round-trip price of $1,295.

Which layover airport has the shortest travel time from Seattle to Buenos Aires?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 16h 00m.

What airlines fly to Buenos Aires?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Buenos Aires from Seattle according to our data. United Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Buenos Aires. Keep in mind that there are 4 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.

Which airline has the best punctuality record on Seattle to Buenos Aires flights?

According to our data, Aerolineas Argentinas have had the least number of delays on this route over the last 12 months; with about 100% of their flights experiencing any sort of delay.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Buenos Aires?

Prices for flights from Seattle/Tacoma Intl Airport to Buenos Aires are refreshed on a daily basis.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Buenos Aires?

As of January 2026, there are 4 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Buenos Aires.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Buenos Aires?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Buenos Aires.

What documentation or ID do you need to fly to Buenos Aires?

The necessary travel and health documents for your Buenos Aires trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$399 Cheap Flights from Seattle to Buenos Aires in 2026

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Round-trip

One-way

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10:58 pm - 10:15 am

SEA

EZE

31h 17m

1 stop

10:25 pm - 10:22 pm

EZE

SEA

27h 57m

1 stop

$962Delta

Mon, Mar 9 - Mon, Mar 23

7:20 am - 10:15 am

SEA

EZE

22h 55m

1 stop

7:45 am - 10:01 am

EZE

SEA

30h 16m

2 stops

$967Delta

Mon, Mar 16 - Tue, Mar 31

11:20 pm - 7:55 am

SEA

AEP

28h 35m

2 stops

3:45 pm - 9:48 pm

AEP

SEA

34h 03m

2 stops

$967LATAM Airlines

Sun, Mar 15 - Tue, Mar 31

7:20 am - 9:15 am

SEA

EZE

21h 55m

2 stops

1:20 pm - 12:33 pm

EZE

SEA

27h 13m

2 stops

$971LATAM Airlines

Thu, Mar 19 - Tue, Mar 31

9:45 pm - 9:00 am

SEA

EZE

31h 15m

1 stop

7:45 am - 10:01 am

EZE

SEA

30h 16m

2 stops

$981Delta

Sun, Mar 15 - Tue, Mar 31

8:08 am - 9:35 am

SEA

EZE

21h 27m

1 stop

3:55 am - 10:01 am

EZE

SEA

34h 06m

2 stops

$987Multiple Airlines

Tue, Mar 17 - Mon, Mar 30

9:46 am - 7:20 am

SEA

EZE

40h 34m

2 stops

11:00 am - 10:04 pm

EZE

SEA

40h 04m

1 stop

$992Multiple Airlines

Tue, Feb 24 - Wed, Mar 4

8:08 am - 7:15 pm

SEA

EZE

31h 07m

1 stop

4:45 pm - 10:00 pm

EZE

SEA

33h 15m

2 stops

$995Multiple Airlines

Tue, Mar 17 - Thu, Apr 2

8:08 am - 9:35 am

SEA

EZE

21h 27m

1 stop

7:35 am - 9:48 pm

EZE

SEA

42h 13m

2 stops

$996Multiple Airlines

Mon, Mar 16 - Sun, Mar 29

6:15 am - 7:55 am

SEA

AEP

21h 40m

2 stops

3:45 pm - 9:48 pm

AEP

SEA

34h 03m

2 stops

$997LATAM Airlines

Mon, Mar 16 - Tue, Mar 31

Delta flights from Seattle to Buenos Aires

Our best Delta deals on Seattle to Buenos Aires flight tickets

Delta

Mar 9

SEA10:58 pmSeattle/Tacoma Intl

31h 17m

1 stop

EZE10:15 amBuenos Aires Ministro Pistarini

Mar 23

EZE10:25 pmBuenos Aires Ministro Pistarini

27h 57m

1 stop

SEA10:22 pmSeattle/Tacoma Intl

$962

Delta

Mar 16

SEA7:20 amSeattle/Tacoma Intl

22h 55m

1 stop

EZE10:15 amBuenos Aires Ministro Pistarini

Mar 31

EZE7:45 amBuenos Aires Ministro Pistarini

30h 16m

2 stops

SEA10:01 amSeattle/Tacoma Intl

$967

Delta

Mar 15

SEA9:45 pmSeattle/Tacoma Intl

31h 15m

1 stop

EZE9:00 amBuenos Aires Ministro Pistarini

Mar 31

EZE7:45 amBuenos Aires Ministro Pistarini

30h 16m

2 stops

SEA10:01 amSeattle/Tacoma Intl

$981

LATAM Airlines flights from Seattle to Buenos Aires

Our best LATAM Airlines deals on Seattle to Buenos Aires flight tickets

LATAM Airlines

Mar 15

SEA11:20 pmSeattle/Tacoma Intl

28h 35m

2 stops

AEP7:55 amBuenos Aires Jorge Newbery

Mar 31

AEP3:45 pmBuenos Aires Jorge Newbery

34h 03m

2 stops

SEA9:48 pmSeattle/Tacoma Intl

$967

LATAM Airlines

Mar 19

SEA7:20 amSeattle/Tacoma Intl

21h 55m

2 stops

EZE9:15 amBuenos Aires Ministro Pistarini

Mar 31

EZE1:20 pmBuenos Aires Ministro Pistarini

27h 13m

2 stops

SEA12:33 pmSeattle/Tacoma Intl

$971

LATAM Airlines

Mar 16

SEA6:15 amSeattle/Tacoma Intl

21h 40m

2 stops

AEP7:55 amBuenos Aires Jorge Newbery

Mar 31

AEP3:45 pmBuenos Aires Jorge Newbery

34h 03m

2 stops

SEA9:48 pmSeattle/Tacoma Intl

$997

Fly from

Fly to

Route

Depart

Return

Price

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 3/9

10:58 pm-10:15 am

1 stop31h 17m

Buenos Aires Ministro Pistarini

Mon 3/23

10:25 pm-10:22 pm

1 stop27h 57m

$962

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 3/16

7:20 am-10:15 am

1 stop22h 55m

Buenos Aires Ministro Pistarini

Tue 3/31

7:45 am-10:01 am

2 stops30h 16m

$967

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Sun 3/15

11:20 pm-7:55 am

2 stops28h 35m

Buenos Aires Jorge Newbery

Tue 3/31

3:45 pm-9:48 pm

2 stops34h 03m

$967

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Thu 3/19

7:20 am-9:15 am

2 stops21h 55m

Buenos Aires Ministro Pistarini

Tue 3/31

1:20 pm-12:33 pm

2 stops27h 13m

$971

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Sun 3/15

9:45 pm-9:00 am

1 stop31h 15m

Buenos Aires Ministro Pistarini

Tue 3/31

7:45 am-10:01 am

2 stops30h 16m

$981

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 3/17

8:08 am-9:35 am

1 stop21h 27m

Buenos Aires Ministro Pistarini

Mon 3/30

3:55 am-10:01 am

2 stops34h 06m

$987

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 2/24

9:46 am-7:20 am

2 stops40h 34m

Buenos Aires Ministro Pistarini

Wed 3/4

11:00 am-10:04 pm

1 stop40h 04m

$992

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 3/17

8:08 am-7:15 pm

1 stop31h 07m

Buenos Aires Ministro Pistarini

Thu 4/2

4:45 pm-10:00 pm

2 stops33h 15m

$995

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 3/16

8:08 am-9:35 am

1 stop21h 27m

Buenos Aires Ministro Pistarini

Sun 3/29

7:35 am-9:48 pm

2 stops42h 13m

$996

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Mon 3/16

6:15 am-7:55 am

2 stops21h 40m

Buenos Aires Jorge Newbery

Tue 3/31

3:45 pm-9:48 pm

2 stops34h 03m

$997

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How to get the cheapest flight ticket from Seattle to Buenos Aires

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Layovers

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Seattle is in June. Flight prices, which tend to average around $1,186, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of June, then book flights to Buenos Aires from Seattle during November instead. Flights to Buenos Aires in November, while not as cheap as those in June, still average around $1,250.

Can stopping save me money on Seattle to Buenos Aires flights?

You could potentially save up to 31% on your flight if you consider stops on a Seattle to Buenos Aires flight.

How have Seattle to Buenos Aires flight prices changed over time?

As of January 2026, prices for Seattle to Buenos Aires flights are approximately 7% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Buenos Aires (SEA to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Buenos Aires

Fastest flight time	19h 55m
Direct flights	None

The fastest flight from Seattle to Buenos Aires takes 19h 55m

There are no direct flights from Seattle to Buenos Aires. There are no popular flight routes from Seattle to Buenos Aires.

Search flight deals

How far is Seattle/Tacoma Intl to Buenos Aires by plane?
The straight-line distance from Seattle/Tacoma Intl to Buenos Aires is 6914.0 mi. Typically, this will take 19h 55m by plane in normal conditions.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Buenos Aires?
Prices for flights from Seattle/Tacoma Intl Airport to Buenos Aires are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Buenos Aires?
As of January 2026, there are 4 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Buenos Aires.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Buenos Aires?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Buenos Aires.
What documentation or ID do you need to fly to Buenos Aires?
The necessary travel and health documents for your Buenos Aires trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Buenos Aires?
Based on momondo bookings for flights between Seattle and Buenos Aires, the leading airline is Delta, making up 39% of the total bookings. Other popular airlines include United Airlines with 25%, American Airlines with 23%, and LATAM Airlines with 13%.

Best airlines flying from Seattle to Buenos Aires

Compare and see reviews for airlines that fly from Seattle to Buenos Aires with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $297	Free Cancellation	Rating 7.9 8,127 reviews	Search Delta flights
LATAM Airlines	PriceFrom $696	Free Cancellation	Rating 7.5 1,918 reviews	Search LATAM Airlines flights
American Airlines	PriceFrom $1,036	Free Cancellation	Rating 7.2 11,206 reviews	Search American Airlines flights
United Airlines	PriceFrom $1,179	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Buenos Aires?

Finding the right flight to Buenos Aires from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

Can I find flights from Seattle to Buenos Aires with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Buenos Aires from Seattle with this policy.

How can momondo help me find flights from Seattle to Buenos Aires?

momondo provides multiple filters to help you find the best flight to Buenos Aires from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Buenos Aires right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seattle to Buenos Aires flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Buenos Aires Jorge Newbery Airport

Buenos Aires Ministro Pistarini Airport

Popular cities in Argentina

Flights to Cordobafrom $577

Flights to Mendozafrom $483

Flights to Puerto Iguazúfrom $850

Flights to El Calafatefrom $960

Flights to Ushuaiafrom $770

Flights to San Carlos de Barilochefrom $778

Flights to Saltafrom $800

Flights to San Miguel de Tucumánfrom $818

Flights to Rosariofrom $622

Flights to Jujuyfrom $2,732

Flights to Mar del Platafrom $1,110

Flights to Puerto Madryn

Cheap flights from Seattle to Buenos Aires from $399

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Buenos Aires departing on 3/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Seattle to Buenos Aires

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See travel insights to Buenos Aires from

How to get the cheapest flight ticket from Seattle to Buenos Aires

What is the cheapest month to fly to Buenos Aires?

Can stopping save me money on Seattle to Buenos Aires flights?

You could potentially save up to 31% on your flight if you consider stops on a Seattle to Buenos Aires flight.

How have Seattle to Buenos Aires flight prices changed over time?

As of January 2026, prices for Seattle to Buenos Aires flights are approximately 7% cheaper when compared to flights at the same time last year.

What airlines fly to Buenos Aires?

How often are flights from Seattle to Buenos Aires delayed?

Historically, on average around 100% of flights between Seattle and Buenos Aires have experienced a delay on any given week. The average delay length over the past 12 months has been 99 minutes.

What is the most punctual flight time for Seattle to Buenos Aires flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Seattle to Buenos Aires flights?

According to our data, Aerolineas Argentinas have had the least number of delays on this route over the last 12 months; with about 100% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between Seattle and Buenos Aires?

Atlanta (ATL) was the most common stop: 63% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Buenos Aires?

Flights via Houston (IAH) offer the lowest average round-trip price of $1,295.

Which layover airport has the shortest travel time from Seattle to Buenos Aires?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 16h 00m.

Which layover airport has the shortest connection time from Seattle to Buenos Aires?

Dallas (DFW) has the shortest average layover time for this route: 1h 35m.

When to book flights from Seattle to Buenos Aires

Cheap Seattle to Buenos Aires (SEA to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Buenos Aires

Fastest flight time

Direct flights

How far is Seattle/Tacoma Intl to Buenos Aires by plane?

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Buenos Aires?

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Buenos Aires?

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Buenos Aires?

What documentation or ID do you need to fly to Buenos Aires?

What is the most popular airline from Seattle to Buenos Aires?

Best airlines flying from Seattle to Buenos Aires

Compare and see reviews for airlines that fly from Seattle to Buenos Aires with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Buenos Aires?

Can I find flights from Seattle to Buenos Aires with flexible booking policies on momondo?

How can momondo help me find flights from Seattle to Buenos Aires?

I’m not ready to book a flight from Seattle to Buenos Aires right now. Can momondo alert me if prices change?

An easier way to manage your Buenos Aires trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires