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.

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.

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

Atlanta (ATL) was the most common stop: 71% of momondo users choosing 1-stop flights on this route connected there.

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

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 15h 25m.

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 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 37% of people opting to fly with this airline when traveling to Buenos Aires. Keep in mind that there are 3 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.

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

Flights via Houston (IAH) offer the lowest average round-trip price of $1,380.

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 December 2025, there are 3 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.

$378 Cheap Flights from Seattle to Buenos Aires in 2025/26

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7:10 am - 10:15 am

SEA

EZE

22h 05m1 stop

7:43 pm - 2:41 pm

EZE

SEA

22h 58m2 stops

$946LATAM Airlines

Mon, Mar 2 - Tue, Mar 17

6:05 am - 10:15 am

SEA

EZE

23h 10m2 stops

7:43 pm - 12:49 pm

EZE

SEA

21h 06m2 stops

$950LATAM Airlines

Mon, Mar 2 - Tue, Mar 17

6:05 am - 7:20 am

SEA

EZE

20h 15m1 stop

8:55 pm - 12:32 pm

EZE

SEA

19h 37m1 stop

$966LATAM Airlines

Wed, Mar 4 - Thu, Mar 26

7:10 am - 10:30 am

SEA

AEP

22h 20m2 stops

2:55 pm - 2:41 pm

AEP

SEA

27h 46m2 stops

$966LATAM Airlines

Mon, Mar 2 - Tue, Mar 17

7:25 am - 9:00 am

SEA

EZE

20h 35m2 stops

4:05 am - 9:56 pm

EZE

SEA

21h 51m2 stops

$970LATAM Airlines

Wed, Mar 4 - Thu, Mar 26

7:15 am - 9:15 am

SEA

EZE

21h 00m2 stops

7:43 pm - 12:47 pm

EZE

SEA

21h 04m2 stops

$1,002LATAM Airlines

Mon, Jan 26 - Tue, Mar 10

9:40 am - 2:40 pm

SEA

AEP

25h 00m2 stops

5:05 pm - 12:32 pm

AEP

SEA

23h 27m2 stops

$1,003LATAM Airlines

Mon, Mar 16 - Tue, Mar 31

1:55 pm - 12:35 am

SEA

EZE

29h 40m2 stops

8:00 am - 10:04 pm

EZE

SEA

19h 04m1 stop

$1,005Multiple Airlines

Thu, Feb 5 - Wed, Feb 18

7:20 am - 10:15 am

SEA

EZE

22h 55m1 stop

3:55 am - 9:49 pm

EZE

SEA

21h 54m2 stops

$1,011LATAM Airlines

Mon, Mar 16 - Mon, Mar 30

5:50 pm - 4:00 pm

SEA

AEP

41h 10m2 stops

2:55 pm - 6:52 pm

AEP

SEA

32h 57m2 stops

$1,126Multiple Airlines

Tue, Feb 17 - Thu, Feb 26

LATAM Airlines flights from Seattle to Buenos Aires

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

LATAM Airlines

Mar 2

SEA7:10 amSeattle/Tacoma Intl

22h 05m

1 stop

EZE10:15 amBuenos Aires Ministro Pistarini

Mar 17

EZE7:43 pmBuenos Aires Ministro Pistarini

22h 58m

2 stops

SEA2:41 pmSeattle/Tacoma Intl

$946

Find similar

LATAM Airlines

Mar 2

SEA6:05 amSeattle/Tacoma Intl

23h 10m

2 stops

EZE10:15 amBuenos Aires Ministro Pistarini

Mar 17

EZE7:43 pmBuenos Aires Ministro Pistarini

21h 06m

2 stops

SEA12:49 pmSeattle/Tacoma Intl

$950

Find similar

LATAM Airlines

Mar 4

SEA6:05 amSeattle/Tacoma Intl

20h 15m

1 stop

EZE7:20 amBuenos Aires Ministro Pistarini

Mar 26

EZE8:55 pmBuenos Aires Ministro Pistarini

19h 37m

1 stop

SEA12:32 pmSeattle/Tacoma Intl

$966

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Delta flights from Seattle to Buenos Aires

Our best Delta deals on Seattle to Buenos Aires flight tickets

Delta

Feb 2

SEA11:55 amSeattle/Tacoma Intl

16h 05m

1 stop

EZE9:00 amBuenos Aires Ministro Pistarini

Feb 22

EZE4:05 amBuenos Aires Ministro Pistarini

22h 50m

2 stops

SEA9:55 pmSeattle/Tacoma Intl

$1,046

Find similar

Delta

Feb 3

SEA6:15 amSeattle/Tacoma Intl

23h 00m

2 stops

EZE10:15 amBuenos Aires Ministro Pistarini

Feb 24

EZE10:25 pmBuenos Aires Ministro Pistarini

25h 24m

2 stops

SEA6:49 pmSeattle/Tacoma Intl

$1,050

Find similar

Delta

Apr 5

SEA11:18 pmSeattle/Tacoma Intl

36h 27m

2 stops

EZE3:45 pmBuenos Aires Ministro Pistarini

Apr 16

EZE8:10 pmBuenos Aires Ministro Pistarini

20h 06m

1 stop

SEA12:16 pmSeattle/Tacoma Intl

$1,051

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 3/2

7:10 am-10:15 am

1 stop22h 05m

Buenos Aires Ministro Pistarini

Tue 3/17

7:43 pm-2:41 pm

2 stops22h 58m

$946

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 3/2

6:05 am-10:15 am

2 stops23h 10m

Buenos Aires Ministro Pistarini

Tue 3/17

7:43 pm-12:49 pm

2 stops21h 06m

$950

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Wed 3/4

6:05 am-7:20 am

1 stop20h 15m

Buenos Aires Ministro Pistarini

Thu 3/26

8:55 pm-12:32 pm

1 stop19h 37m

$966

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Mon 3/2

7:10 am-10:30 am

2 stops22h 20m

Buenos Aires Jorge Newbery

Tue 3/17

2:55 pm-2:41 pm

2 stops27h 46m

$966

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Wed 3/4

7:25 am-9:00 am

2 stops20h 35m

Buenos Aires Ministro Pistarini

Thu 3/26

4:05 am-9:56 pm

2 stops21h 51m

$970

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 1/26

7:15 am-9:15 am

2 stops21h 00m

Buenos Aires Ministro Pistarini

Tue 3/10

7:43 pm-12:47 pm

2 stops21h 04m

$1,002

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Mon 3/16

9:40 am-2:40 pm

2 stops25h 00m

Buenos Aires Jorge Newbery

Tue 3/31

5:05 pm-12:32 pm

2 stops23h 27m

$1,003

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Thu 2/5

1:55 pm-12:35 am

2 stops29h 40m

Buenos Aires Ministro Pistarini

Wed 2/18

8:00 am-10:04 pm

1 stop19h 04m

$1,005

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 3/16

7:20 am-10:15 am

1 stop22h 55m

Buenos Aires Ministro Pistarini

Mon 3/30

3:55 am-9:49 pm

2 stops21h 54m

$1,011

SeattleBuenos Aires

SEA - AEP

SEAAEP

Seattle/Tacoma Intl

Tue 2/17

5:50 pm-4:00 pm

2 stops41h 10m

Buenos Aires Jorge Newbery

Thu 2/26

2:55 pm-6:52 pm

2 stops32h 57m

$1,126

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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 typical price of a round-trip flight between Seattle and Buenos Aires?

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 $1,247.

What is the cheapest day to depart on your flight to Buenos Aires?

On average, the least expensive day to fly to Buenos Aires from Seattle is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,328. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Saturday is $1,503.

What is the cheapest time of day to depart on your flight to Buenos Aires?

Our most recent data shows that the best time of day to fly to Buenos Aires is in the afternoon. Flights from Seattle to Buenos Aires during this time can be as low as $1,307. Try not to purchase tickets at noon because they tend to be around $1,438. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You could potentially save up to 3% 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 December 2025, prices for Seattle to Buenos Aires flights are approximately 7% more expensive 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	16h 00m
Direct flights	None

The fastest flight from Seattle to Buenos Aires takes 16h 00m

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 16h 00m 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 December 2025, there are 3 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 41% of the total bookings. Other popular airlines include United Airlines with 26%, American Airlines with 23%, and LATAM Airlines with 11%.

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
American Airlines	PriceFrom $1,036	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
Delta	PriceFrom $1,045	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights
United Airlines	PriceFrom $1,200	Free Cancellation	Rating 7.4 9,091 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

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Flights to Jujuyfrom $2,732

Flights to Puerto Madryn

Flights to Mar del Platafrom $1,248

Cheap flights from Seattle to Buenos Aires from $378

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 1/17. 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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LATAM Airlines 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 typical price of a round-trip flight between Seattle and Buenos Aires?

What is the cheapest month to fly to Buenos Aires?

What is the cheapest day to depart on your flight to Buenos Aires?

What is the cheapest time of day to depart on your flight to Buenos Aires?

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

You could potentially save up to 3% 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 December 2025, prices for Seattle to Buenos Aires flights are approximately 7% more expensive 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: 71% 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 $1,380.

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

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 15h 25m.

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