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Cheap flights from Seattle to Buenos Aires from $455

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 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:13 am - 7:15 pm
SEA
-
EZE
31h 02m
1 stop
Multiple Airlines Logo
2:49 pm - 9:37 am
EZE
-
SEA
22h 48m
2 stops
$1,125Multiple Airlines
Wed, Sep 2 - Wed, Sep 16
Multiple Airlines Logo
11:00 pm - 10:00 am
SEA
-
EZE
31h 00m
3 stops
Multiple Airlines Logo
9:15 pm - 10:46 pm
EZE
-
SEA
29h 31m
3 stops
$1,128Multiple Airlines
Tue, Jul 7 - Fri, Jul 10
Aeromexico Logo
9:30 am - 9:25 pm
SEA
-
EZE
31h 55m
1 stop
Aeromexico Logo
11:25 pm - 7:55 pm
EZE
-
SEA
24h 30m
1 stop
$1,135Aeromexico
Mon, Aug 17 - Thu, Sep 3
Multiple Airlines Logo
8:13 am - 7:15 pm
SEA
-
EZE
31h 02m
1 stop
Multiple Airlines Logo
2:17 am - 8:44 pm
EZE
-
SEA
22h 27m
2 stops
$1,138Multiple Airlines
Wed, Aug 19 - Tue, Sep 8
Aeromexico Logo
9:30 am - 9:25 pm
SEA
-
EZE
31h 55m
1 stop
Aeromexico Logo
11:25 pm - 7:55 pm
EZE
-
SEA
24h 30m
1 stop
$1,139Aeromexico
Wed, Sep 9 - Wed, Sep 23
Aeromexico Logo
9:30 am - 9:25 pm
SEA
-
EZE
31h 55m
1 stop
Aeromexico Logo
11:25 pm - 7:55 pm
EZE
-
SEA
24h 30m
1 stop
$1,140Aeromexico
Fri, Aug 21 - Wed, Sep 16
Multiple Airlines Logo
8:13 am - 7:15 pm
SEA
-
EZE
31h 02m
1 stop
Multiple Airlines Logo
2:49 pm - 9:37 am
EZE
-
SEA
22h 48m
2 stops
$1,144Multiple Airlines
Tue, Sep 1 - Wed, Sep 16
Multiple Airlines Logo
8:13 am - 11:35 am
SEA
-
EZE
23h 22m
1 stop
Multiple Airlines Logo
2:49 pm - 9:37 am
EZE
-
SEA
22h 48m
2 stops
$1,145Multiple Airlines
Sat, Aug 22 - Mon, Sep 14
Multiple Airlines Logo
8:13 am - 7:15 pm
SEA
-
EZE
31h 02m
1 stop
Multiple Airlines Logo
2:49 pm - 9:37 am
EZE
-
SEA
22h 48m
2 stops
$1,146Multiple Airlines
Wed, Sep 2 - Mon, Sep 14
Multiple Airlines Logo
8:13 am - 11:35 am
SEA
-
EZE
23h 22m
1 stop
Multiple Airlines Logo
4:50 pm - 9:37 am
EZE
-
SEA
20h 47m
2 stops
$1,148Multiple Airlines
Sat, Aug 22 - Wed, Sep 16

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Aeromexico flights from Seattle to Buenos Aires

Our best Aeromexico deals on Seattle to Buenos Aires flight tickets
Aeromexico
Aug 17
SEA9:30 amSeattle/Tacoma Intl
31h 55m
1 stop
EZE9:25 pmBuenos Aires Ministro Pistarini
Sep 3
EZE11:25 pmBuenos Aires Ministro Pistarini
24h 30m
1 stop
SEA7:55 pmSeattle/Tacoma Intl
$1,135
Aeromexico
Sep 9
SEA9:30 amSeattle/Tacoma Intl
31h 55m
1 stop
EZE9:25 pmBuenos Aires Ministro Pistarini
Sep 23
EZE11:25 pmBuenos Aires Ministro Pistarini
24h 30m
1 stop
SEA7:55 pmSeattle/Tacoma Intl
$1,139
Aeromexico
Aug 21
SEA9:30 amSeattle/Tacoma Intl
31h 55m
1 stop
EZE9:25 pmBuenos Aires Ministro Pistarini
Sep 16
EZE11:25 pmBuenos Aires Ministro Pistarini
24h 30m
1 stop
SEA7:55 pmSeattle/Tacoma Intl
$1,140

GOL flights from Seattle to Buenos Aires

Our best GOL deals on Seattle to Buenos Aires flight tickets
GOL
Nov 14
SEA10:08 pmSeattle/Tacoma Intl
33h 12m
2 stops
EZE12:20 pmBuenos Aires Ministro Pistarini
Nov 24
EZE3:15 amBuenos Aires Ministro Pistarini
25h 25m
2 stops
SEA11:40 pmSeattle/Tacoma Intl
$1,176
GOL
Sep 5
SEA8:47 pmSeattle/Tacoma Intl
36h 13m
2 stops
AEP1:00 pmBuenos Aires Jorge Newbery
Sep 13
AEP3:40 amBuenos Aires Jorge Newbery
24h 12m
2 stops
SEA11:52 pmSeattle/Tacoma Intl
$1,353
GOL
Jun 19
SEA1:00 pmSeattle/Tacoma Intl
44h 00m
2 stops
AEP1:00 pmBuenos Aires Jorge Newbery
Jun 25
AEP3:40 amBuenos Aires Jorge Newbery
36h 20m
2 stops
SEA12:00 pmSeattle/Tacoma Intl
$1,897

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Buenos Aires that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 18, 2026.
Use the filters below to find and compare flights from Seattle to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Wed 9/2

8:13 am-7:15 pm

1 stop31h 02m

Buenos Aires Ministro Pistarini

Wed 9/16

2:49 pm-9:37 am

2 stops22h 48m

$1,125

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 7/7

11:00 pm-10:00 am

3 stops31h 00m

Buenos Aires Ministro Pistarini

Fri 7/10

9:15 pm-10:46 pm

3 stops29h 31m

$1,128

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Mon 8/17

9:30 am-9:25 pm

1 stop31h 55m

Buenos Aires Ministro Pistarini

Thu 9/3

11:25 pm-7:55 pm

1 stop24h 30m

$1,135

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Wed 8/19

8:13 am-7:15 pm

1 stop31h 02m

Buenos Aires Ministro Pistarini

Tue 9/8

2:17 am-8:44 pm

2 stops22h 27m

$1,138

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Wed 9/9

9:30 am-9:25 pm

1 stop31h 55m

Buenos Aires Ministro Pistarini

Wed 9/23

11:25 pm-7:55 pm

1 stop24h 30m

$1,139

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Fri 8/21

9:30 am-9:25 pm

1 stop31h 55m

Buenos Aires Ministro Pistarini

Wed 9/16

11:25 pm-7:55 pm

1 stop24h 30m

$1,140

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Tue 9/1

8:13 am-7:15 pm

1 stop31h 02m

Buenos Aires Ministro Pistarini

Wed 9/16

2:49 pm-9:37 am

2 stops22h 48m

$1,144

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Sat 8/22

8:13 am-11:35 am

1 stop23h 22m

Buenos Aires Ministro Pistarini

Mon 9/14

2:49 pm-9:37 am

2 stops22h 48m

$1,145

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Wed 9/2

8:13 am-7:15 pm

1 stop31h 02m

Buenos Aires Ministro Pistarini

Mon 9/14

2:49 pm-9:37 am

2 stops22h 48m

$1,146
Quickest round-trip

SeattleBuenos Aires

SEA - EZE

SEAEZE

Seattle/Tacoma Intl

Sat 8/22

8:13 am-11:35 am

1 stop23h 22m

Buenos Aires Ministro Pistarini

Wed 9/16

4:50 pm-9:37 am

2 stops20h 47m

$1,148

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Buenos Aires from

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

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 August. Flight prices, which tend to average around $157, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of August, then book flights to Buenos Aires from Seattle during March instead. Flights to Buenos Aires in March, while not as cheap as those in August, still average around $159.

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

You could potentially save up to 33% 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?

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

18h 50m

Direct flights

None
The fastest flight from Seattle to Buenos Aires takes 18h 50m
There are no direct flights from Seattle to Buenos Aires. There are no popular flight routes from Seattle to Buenos Aires.
Search flight deals

Frequently asked questions about flying from Seattle to Buenos Aires

  • 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 18h 50m 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?

  • 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?

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
LATAM AirlinesPriceFrom $696Free CancellationRating
7.4
1,933 reviews
Search LATAM Airlines flights
DeltaPriceFrom $964Free CancellationRating
7.8
8,406 reviews
Search Delta flights
American AirlinesPriceFrom $1,126Free CancellationRating
7.1
11,670 reviews
Search American 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

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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
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport