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Cheap flights from Seattle to Buenos Aires from $403

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 1/18. 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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Find the cheapest flights from Seattle to Buenos Aires

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Buenos Aires that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Buenos Aires.

Cheap last minute flights

Planning a quick getaway from Seattle to Buenos Aires? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Buenos Aires, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Buenos Aires

Find recent round-trip train or bus tickets from Seattle to Buenos Aires.

All round-trip flight deals to Buenos Aires

The cheapest plane tickets to Buenos Aires found on KAYAK recently.
12:00 pm - 6:30 pmSEA-AEP
25h 30m2 stops
10:55 pm - 10:38 amAEP-SEA
40h 43m2 stops
$832LATAM Airlines
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Tue, Feb 18 - Sun, Feb 23
1:58 pm - 12:48 amSEA-EZE
29h 50m2 stops
10:55 am - 10:15 amEZE-SEA
52h 20m2 stops
Tue, Jan 21 - Tue, Jan 28
11:59 pm - 9:20 amSEA-EZE
28h 21m2 stops
9:05 pm - 6:38 pmEZE-SEA
25h 33m3 stops
$1,171United Airlines
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Mon, Mar 3 - Tue, Mar 25
11:55 am - 6:45 pmSEA-EZE
26h 50m2 stops
8:10 pm - 4:58 pmEZE-SEA
24h 48m1 stop
$1,174Delta
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Wed, Apr 30 - Mon, May 12
9:20 am - 9:20 amSEA-EZE
19h 00m2 stops
9:05 pm - 6:38 pmEZE-SEA
25h 33m3 stops
$1,178United Airlines
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Mon, Feb 10 - Tue, Mar 18
11:15 pm - 9:45 amSEA-EZE
30h 30m1 stop
8:10 pm - 4:58 pmEZE-SEA
24h 48m1 stop
$1,179Delta
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Wed, May 7 - Tue, May 13
7:00 am - 6:59 amSEA-EZE
18h 59m2 stops
10:30 pm - 1:05 pmEZE-SEA
19h 35m1 stop
$1,236American Airlines
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Thu, Feb 20 - Thu, Feb 27
10:24 am - 10:50 amSEA-EZE
19h 26m2 stops
9:30 pm - 10:51 amEZE-SEA
17h 21m1 stop
$1,248American Airlines
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Sat, Mar 1 - Sun, Mar 23
9:30 am - 9:55 pmSEA-EZE
31h 25m1 stop
11:55 pm - 8:00 pmEZE-SEA
25h 05m1 stop
$1,255Aeromexico
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Tue, Jan 21 - Tue, Jan 28
9:30 am - 9:55 pmSEA-EZE
31h 25m1 stop
11:55 pm - 8:00 pmEZE-SEA
25h 05m1 stop
$1,264Aeromexico
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Tue, Jan 21 - Tue, Jan 28
1:58 pm - 1:09 amSEA-EZE
30h 11m2 stops
Sat, Jan 18
12:50 pm - 10:13 pmSEA-EZE
28h 23m2 stops
$439Copa Airlines
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Thu, Jan 23
1:55 pm - 1:25 amSEA-EZE
30h 30m3 stops
Tue, Jan 14
10:08 am - 10:30 amSEA-AEP
19h 22m2 stops
$750LATAM Airlines
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Wed, Mar 5
8:00 am - 6:45 pmSEA-EZE
30h 45m2 stops
$767Delta
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Wed, May 28
10:05 am - 9:00 pmSEA-AEP
30h 55m2 stops
$767LATAM Airlines
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Wed, May 28
6:15 am - 7:20 amSEA-EZE
20h 05m2 stops
$787United Airlines
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Sat, Feb 1
3:55 pm - 9:45 amSEA-EZE
37h 50m1 stop
$794Delta
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Sun, Jun 1
11:59 pm - 8:00 amSEA-EZE
28h 01m1 stop
$813United Airlines
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Sat, Jun 14
10:24 am - 9:55 pmSEA-EZE
31h 31m1 stop
$1,598Aeromexico
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Sat, Mar 15
11:50 am - 9:10 amSEA-EZE
16h 20m1 stop
10:30 pm - 2:50 pmEZE-SEA
21h 20m1 stop
$1,834American Airlines
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Fri, Dec 27 - Sun, Dec 29
5:00 am - 7:20 amSEA-EZE
21h 20m2 stops
11:55 pm - 9:10 pmEZE-SEA
26h 15m2 stops
$1,838United Airlines
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Fri, Dec 27 - Sun, Dec 29
8:20 am - 9:00 amSEA-EZE
19h 40m1 stop
8:55 pm - 10:45 amEZE-SEA
18h 50m1 stop
$1,844Delta
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Wed, Dec 25 - Mon, Jan 13
12:55 am - 9:10 amSEA-EZE
27h 15m1 stop
10:30 pm - 10:55 amEZE-SEA
17h 25m1 stop
$1,854American Airlines
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Thu, Dec 26 - Sun, Dec 29
7:04 am - 9:20 amSEA-EZE
21h 16m1 stop
11:55 pm - 4:16 pmEZE-SEA
21h 21m2 stops
$1,898United Airlines
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Wed, Dec 25 - Mon, Jan 13
8:20 am - 10:30 amSEA-AEP
21h 10m2 stops
3:40 pm - 12:31 pmAEP-SEA
25h 51m2 stops
$2,072LATAM Airlines
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Wed, Dec 25 - Mon, Jan 13
2:00 pm - 10:14 pmSEA-EZE
27h 14m2 stops
4:02 am - 11:09 pmEZE-SEA
24h 07m2 stops
$2,111Copa Airlines
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Wed, Dec 25 - Sun, Jan 12
3:11 pm - 10:14 pmSEA-EZE
26h 03m2 stops
4:02 am - 11:50 pmEZE-SEA
24h 48m2 stops
$2,316Copa Airlines
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Wed, Dec 25 - Sun, Jan 5
6:15 am - 10:30 amSEA-AEP
23h 15m2 stops
5:05 pm - 12:24 amAEP-SEA
36h 19m2 stops
$2,436LATAM Airlines
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Fri, Dec 27 - Sun, Dec 29
6:15 am - 7:15 amSEA-EZE
20h 00m1 stop
9:30 am - 10:07 pmEZE-SEA
17h 37m1 stop
$3,133Delta
Find Deal
Wed, Dec 25 - Mon, Jan 6

United Airlines flights from Seattle to Buenos Aires

Our best United Airlines deals on Seattle to Buenos Aires flight tickets
United Airlines
Mar 3
SEA11:59 pmSeattle/Tacoma Intl
28h 21m
2 stops
EZE9:20 amBuenos Aires Ministro Pistarini
Mar 25
EZE9:05 pmBuenos Aires Ministro Pistarini
25h 33m
3 stops
SEA6:38 pmSeattle/Tacoma Intl
United Airlines
Feb 10
SEA9:20 amSeattle/Tacoma Intl
19h 00m
2 stops
EZE9:20 amBuenos Aires Ministro Pistarini
Mar 18
EZE9:05 pmBuenos Aires Ministro Pistarini
25h 33m
3 stops
SEA6:38 pmSeattle/Tacoma Intl
United Airlines
Mar 1
SEA11:59 pmSeattle/Tacoma Intl
28h 21m
2 stops
EZE9:20 amBuenos Aires Ministro Pistarini
Mar 25
EZE9:05 pmBuenos Aires Ministro Pistarini
25h 33m
3 stops
SEA6:38 pmSeattle/Tacoma Intl

Lufthansa flights from Seattle to Buenos Aires

Our best Lufthansa deals on Seattle to Buenos Aires flight tickets
Lufthansa
Feb 4
SEA6:10 amSeattle/Tacoma Intl
22h 10m
2 stops
EZE9:20 amBuenos Aires Ministro Pistarini
Feb 11
EZE11:55 pmBuenos Aires Ministro Pistarini
20h 50m
2 stops
SEA3:45 pmSeattle/Tacoma Intl
Lufthansa
Feb 3
SEA7:00 amSeattle/Tacoma Intl
21h 20m
1 stop
EZE9:20 amBuenos Aires Ministro Pistarini
Feb 10
EZE10:05 pmBuenos Aires Ministro Pistarini
19h 48m
1 stop
SEA12:53 pmSeattle/Tacoma Intl
Lufthansa
Feb 4
SEA6:10 amSeattle/Tacoma Intl
22h 10m
1 stop
EZE9:20 amBuenos Aires Ministro Pistarini
Feb 11
EZE11:55 pmBuenos Aires Ministro Pistarini
17h 58m
1 stop
SEA12:53 pmSeattle/Tacoma Intl

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 cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Seattle is in April. Flight prices, which tend to average around $1,215, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Buenos Aires from Seattle during November instead. Flights to Buenos Aires in November, while not as cheap as those in April, still average around $1,238.

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.

How far in advance should I book a flight to Buenos Aires?

Most flyers found that booking tickets 32 days in advance of their planned departure date is the best time to get cheap flights to Buenos Aires. During this timeframe, flight prices are around $1,398. Keep in mind that you might also find cheap flights to Buenos Aires outside of this time window. In fact, momondo users recently found flights from Seattle to Buenos Aires for $997.

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

You could potentially save up to 47% 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 2024, prices for Seattle to Buenos Aires flights are approximately 12% 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

Best Price Found

$403

Fastest flight time

15h 22m

Direct flights

None

Airports in Buenos Aires

2 airports
The best one-way flight to Buenos Aires from Seattle in the past 72 hours is $403. The best round-trip flight deal from Seattle to Buenos Aires found on momondo in the last 72 hours is $832.
The fastest flight from Seattle to Buenos Aires takes 15h 22m
There are no direct flights from Seattle to Buenos Aires. Popular non-direct routes for this connection are Seattle/Tacoma Intl Airport - Buenos Aires Ministro Pistarini Airport and Seattle/Tacoma Intl Airport - Buenos Aires Jorge Newbery Airport.
There are 2 airports near Buenos Aires: Buenos Aires Ministro Pistarini (EZE), Buenos Aires Jorge Newbery (AEP)

  • 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 15h 22m 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
AeromexicoPriceFrom $997Free CancellationRating
7.5
1,917 reviews
Search Aeromexico flights
American AirlinesPriceFrom $1,100Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LATAM AirlinesPriceFrom $1,113Free CancellationRating
7.5
1,868 reviews
Search LATAM Airlines flights
DeltaPriceFrom $1,129Free CancellationRating
8.0
8,594 reviews
Search Delta flights
United AirlinesPriceFrom $1,208Free CancellationRating
7.4
9,028 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.


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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