SEA - BUE

$361 Find Cheap Flights from Seattle to Buenos Aires - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Buenos Aires departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,045
Typical prices: $1,196-$1,776
Multiple Airlines
Mon 11/9Mon 11/16
SEA - EZE • 2 stops
Cheapest one-way
$361
Multiple Airlines
Thu 11/12
SEA - EZE • 2 stops
Top airlines
Cheapest • from $1,081 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Seattle and Buenos Aires. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $1,214 (round-trip)
Shortest trip • 15h 49m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
Good to know
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Good to know
Good to know
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We hope you love your trip to Buenos Aires!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Buenos Aires (SEA-BUE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Buenos Aires that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Buenos Aires

Mon, Nov 9 - Mon, Nov 16
Multiple Airlines Logo
11:06 am - 3:00 amSEA  Seattle/Tacoma Intl-EZE Buenos Aires Ministro Pistarini
34h 54m2 stops Los Angeles Lima J Chavez Intl
Multiple Airlines Logo
10:45 pm - 9:54 pmEZE  Buenos Aires Ministro Pistarini-SEA Seattle/Tacoma Intl
28h 09m1 stop Miami
$1,045Multiple Airlines
Tue, Nov 3 - Tue, Nov 17
Multiple Airlines Logo
11:06 am - 5:53 amSEA  Seattle/Tacoma Intl-EZE Buenos Aires Ministro Pistarini
37h 47m2 stops Los Angeles Panama City Tocumen Intl
Multiple Airlines Logo
10:45 pm - 9:54 pmEZE  Buenos Aires Ministro Pistarini-SEA Seattle/Tacoma Intl
28h 09m1 stop Miami
$1,061Multiple Airlines
Mon, Nov 2 - Tue, Nov 17
Multiple Airlines Logo
11:06 am - 5:53 amSEA  Seattle/Tacoma Intl-EZE Buenos Aires Ministro Pistarini
37h 47m2 stops Los Angeles Panama City Tocumen Intl
Multiple Airlines Logo
10:45 pm - 9:54 pmEZE  Buenos Aires Ministro Pistarini-SEA Seattle/Tacoma Intl
28h 09m1 stop Miami
$1,061Multiple Airlines
Wed, Sep 16 - Wed, Sep 23
LATAM Airlines Logo
7:59 am - 9:30 amSEA  Seattle/Tacoma Intl-AEP Buenos Aires Jorge Newbery
45h 31m2 stops Miami Sao Paulo Guarulhos Intl
LATAM Airlines Logo
3:45 pm - 12:27 pmAEP  Buenos Aires Jorge Newbery-SEA Seattle/Tacoma Intl
24h 42m2 stops Santiago Arturo Merino Benitez Los Angeles
$1,091LATAM Airlines
Thu, Oct 22 - Wed, Oct 28
LATAM Airlines Logo
9:45 am - 2:50 pmSEA  Seattle/Tacoma Intl-AEP Buenos Aires Jorge Newbery
25h 05m2 stops Los Angeles Santiago Arturo Merino Benitez
LATAM Airlines Logo
9:45 pm - 9:49 pmAEP  Buenos Aires Jorge Newbery-SEA Seattle/Tacoma Intl
28h 04m2 stops Sao Paulo Guarulhos Intl Orlando
$1,120LATAM Airlines
Thu, Oct 22 - Wed, Oct 28
LATAM Airlines Logo
8:05 am - 9:40 amSEA  Seattle/Tacoma Intl-EZE Buenos Aires Ministro Pistarini
21h 35m1 stop Miami
LATAM Airlines Logo
5:00 pm - 9:49 pmEZE  Buenos Aires Ministro Pistarini-SEA Seattle/Tacoma Intl
32h 49m2 stops Sao Paulo Guarulhos Intl Orlando
$1,120LATAM Airlines
Thu, Jan 14 - Thu, Jan 28
Delta Logo
7:20 am - 10:55 amSEA  Seattle/Tacoma Intl-EZE Buenos Aires Ministro Pistarini
22h 35m1 stop New York John F Kennedy Intl
Delta Logo
8:05 pm - 7:23 pmEZE  Buenos Aires Ministro Pistarini-SEA Seattle/Tacoma Intl
28h 18m1 stop New York John F Kennedy Intl
$1,378Delta
Sun, Jan 17 - Sun, Jan 31
American Airlines Logo
12:00 pm - 8:30 amSEA  Seattle/Tacoma Intl-EZE Buenos Aires Ministro Pistarini
15h 30m1 stop Dallas/Fort Worth
American Airlines Logo
10:30 pm - 3:34 pmEZE  Buenos Aires Ministro Pistarini-SEA Seattle/Tacoma Intl
22h 04m1 stop Dallas/Fort Worth
$1,378American Airlines
Sun, Jan 17 - Sun, Jan 31
American Airlines Logo
8:35 am - 8:40 amSEA  Seattle/Tacoma Intl-EZE Buenos Aires Ministro Pistarini
19h 05m2 stops Dallas/Fort Worth Miami
American Airlines Logo
9:40 pm - 2:13 pmEZE  Buenos Aires Ministro Pistarini-SEA Seattle/Tacoma Intl
21h 33m2 stops Miami Chicago O'Hare Intl
$1,382American Airlines
Mon, Oct 12 - Sun, Nov 8
Delta Logo
7:30 am - 6:10 amSEA  Seattle/Tacoma Intl-EZE Buenos Aires Ministro Pistarini
18h 40m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl
Delta Logo
7:20 am - 3:17 pmEZE  Buenos Aires Ministro Pistarini-SEA Seattle/Tacoma Intl
36h 57m2 stops Lima J Chavez Intl Los Angeles
$1,398Delta
Booking Insights

KAYAK's insights & trends for Seattle to Buenos Aires flights

Get data-powered insights and trends into flights from Seattle to Buenos Aires to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Buenos Aires?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Buenos Aires departing in November.

Flight prices are below average for this route right now.

Flights to Buenos Aires from Seattle usually cost between $1,325 and $1,530 in November.
The lowest price found in the past 5 days was $1,045 on Multiple Airlines (Nov 9-Nov 16).

What is the cheapest month to fly from Seattle to Buenos Aires?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Buenos Aires, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Buenos Aires is March, where tickets cost $1,165 (return) on average. On the other hand, the most expensive months are May and December, where the average cost of round-trip tickets is $1,751 and $1,693 respectively.

Good to know

Low season

May

Cheapest flight

$361
Best time to beat the crowds but there is an average 27% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Seattle to Buenos Aires Ministro Pistarini

When to book flights from Seattle to Buenos Aires

Are your dates flexible? Find out the best times to travel from Seattle to Buenos Aires based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Buenos Aires

  • Can I travel with pets on the flight from Seattle to Buenos Aires?

    Delta Air Lines and Alaska Airlines allow pets to travel with their owners in the cabin or as checked baggage. Delta Air Lines permits small dogs, cats, and household birds, while Alaska Airlines allows a wider range of pets, including dogs, cats, rabbits, and birds. Specific guidelines and restrictions apply, such as carrier dimensions and health documentation, so check with the respective airlines for detailed pet travel policies.

  • What services are available for kids on the flight from Seattle to Buenos Aires?

    Delta Air Lines and Alaska Airlines offer various services for young travelers. Delta Air Lines provides Sky Zone, an in-flight entertainment channel dedicated to kids, and complimentary snacks. Alaska Airlines offers the "Fly With Me" animals program, providing collectible plush toys and activity packs. Both airlines also have child-friendly meals and options to pre-board families traveling with children.

  • How can I get from the airport to the city center of Buenos Aires?

    Ezeiza International Airport (Ministro Pistarini) (EZE) is the main airport in Buenos Aires. Taxi services like Taxi Ezeiza, ride-hailing services, and Manuel Tienda León buses are available for transportation to the city center. For Jorge Newbery Airport (AEP), similar transportation options apply. Please verify availability before traveling.

  • Do these airlines cater to special dietary requirements?

    Delta Air Lines and Alaska Airlines offer special meals to accommodate different dietary needs. Delta Air Lines provides vegetarian, vegan, gluten-free, and kosher meals. Alaska Airlines offers special meals for specific dietary preferences, including vegetarian, vegan, gluten-free, and diabetic meals.

  • What is the cheapest flight from Seattle to Buenos Aires?

    In the last 5 days, the lowest price for a flight from Seattle to Buenos Aires was $361 for a one-way ticket and $1,045 for a round-trip.

  • Do I need a passport to fly between Seattle and Buenos Aires?

    Yes, you’ll need a passport to travel to Buenos Aires from Seattle.

  • Which airports will I be using when flying from Seattle to Buenos Aires?

    Seattle is served by only 1 airport and there are 2 airports in Buenos Aires. You will leave Seattle from Seattle/Tacoma Intl and you will be arriving in Buenos Aires at one of these airports: Buenos Aires Jorge Newbery or Buenos Aires Ministro Pistarini.

  • Which aircraft models fly most regularly from Seattle to Buenos Aires?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Buenos Aires?

    oneworld, and SkyTeam are the airline alliances operating flights between Seattle and Buenos Aires, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Buenos Aires, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Buenos Aires are Delta and United Airlines. With an average price for the route of $1,452 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,347 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Seattle to Buenos Aires?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Buenos Aires.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Buenos Aires?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Buenos Aires?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Buenos Aires with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Buenos Aires?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Buenos Aires from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Buenos Aires

  • When searching for cheap flights from Seattle to Buenos Aires, consider checking the ticket classes various airlines offer. For example, Delta Air Lines provides classes such as Economy, Comfort+, and First Class, each with benefits and pricing options. Alaska Airlines offers Main Cabin, Premium Class, and First Class, catering to different traveler preferences and budgets.
  • Look out for airlines that offer special amenities to enhance your travel experience. For instance, United Airlines provides complimentary in-flight Wi-Fi, power outlets at each seat, and personal entertainment systems on select flights. American Airlines offers priority boarding for certain fare classes, allowing you to settle in and relax more quickly.
  • If you're concerned about reducing your carbon footprint, consider airlines that prioritize sustainability. For example, Alaska Airlines is committed to minimizing emissions by using sustainable aviation fuel and operating more fuel-efficient aircraft. Delta Air Lines has implemented carbon offset programs and investments in cleaner technologies to reduce its environmental impact.
  • When searching for cheap flights, be open to layovers, which can often result in significant savings. Airlines like Copa Airlines and Aeromexico frequently offer connecting flights between Seattle and Buenos Aires, providing more affordable options than non-stop flights. While layovers may extend your travel time, they can be an opportunity to explore an additional city or take a break during your journey.
  • Before booking your flight, review the baggage policies of each airline to avoid any surprises or extra charges. For example, Delta Air Lines allows one free carry-on bag and one personal item, while Alaska Airlines permits a similar policy with specific size and weight restrictions. It's important to note that additional fees may apply for checked bags or oversized items, so familiarize yourself with the baggage allowances of each airline to plan accordingly and minimize any additional costs.

Reviews of the top 4 airlines serving from Seattle to Buenos Aires

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Buenos Aires. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Buenos Aires? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8492 reviews
7.8Entertainment
8.5Crew
7.8Comfort
7.2Food
8.1Boarding
Airline reviews

Comfortable seats. Nice service online. Short flight, so not a lot of time to enjoy.

8.0 ExcellentMichael, Jul 2026
Read more Delta reviews

Comfortable seats. Nice service online. Short flight, so not a lot of time to enjoy.

The flight was done by SkyWest only WIFI no entertainment center are available on the CRJ

Everything worked smoothly, never had a concern with the flight from start to finish.

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

The cabin temperature was nice and cool. The wifi was not working.

4 hour delay. So our flight schedule mass up. Your worker told me you should rebooking myself. I was very angry. Latam Airline always get the money more through any way. But They have no concern passenger.

Honestly first time flying with delta and it was pretty good. All the process very smooth and crew was always nice and attentive.

Deleted flight made me loose my connection flight now stuck in Atlanta for a day

Apart of Sky miles delta. And they go everywhere in Brazil

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

I booked a flight through Kayak to Brazil I have traveled to Brazil several times before Kayak Delta or LATAM never mentioned during the booking or in the pre flight process that the visa requirements to visit Brazil have changed earlier this year. I was unaware of this change and as such never got a visa and was unable to fly from JFK to Sao Paulo Add to this that Delta allowed me to fly from Boston to JFK which they should not have as I didn’t have a visa. It has been a terrible experience and a huge loss of money

Good flight, boarding ok and crew very nice. Flight was not full so I was able to be very comfortable. Blanket and pillow provided with was good as it was very cold during the flight . Food was very good(small snack sandwich and an excellent piece of orange cake). Overall good flight, no complaints.

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

Flight be on time would be a good start. Then train your flight attendants to be attentive and friendly. This time they completely forgot my row for the measly snack! United, do better!

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Very comfortable seating and the Flight staff were very attentive. The premium economy section that I was seated in was very clean, updated, and well appointed. I would highly recommend flying United Airlines as this experience was better than the Japan Airlines business class that I flew several months ago.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Delayed by 2.5hrs any longer and they would’ve had to honour their own policy for breaking their own rules and regs. Not cool, especially when I have an infant child that needs to stay on a routine and they get schedules.

They had three choices for snacks - but you could only have one - and they ran out of the dark chocolate before they made it all the way down the aisle... Packed flight - limited service.

They opened my checked bag and even though my lock was tsa approved, they loose my lock and left my bag just like that. Incompetent people, very upset about it. I’ll try to avoid traveling with united

We fly to Ecuador frequently. Checking in is usually a hassle because most United agents take some time before they can verify that my passport doesn't require a visa to Ecuador. This time the process was even longer due to the cyber attack. But she was really nice to us. So glad we brought plenty of snacks to supplement the 3 flights from SEA to GYE.

We had selected seats in the app that were a 2x2 format in the middle of the plane. Our seats when we got on the plane had been moved to the back rows in a 3x1 format. What’s the point of paying up for tickets that allow seat selection if the airline will just change them?

Flight attendants and crew were great! This plane was fine. It was clean and everything worked properly. Now, the gate change was not communicated. No text or information. It wasn't far with the gate change but it still changed without any communication. Not sure if this is on American or Kayakl. Also, internet was the worst. I would never have ATT. 3+hr flight and weak internet. I think I watched the commercials to get on at least 6 times. Terrible internet!

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

Great flight - friendly and attentive team! Seats in coach were comfy, but a little cramped - but that is the case with all airlines ;)

Dreadful experience. Our flight was delayed more than 8 hours due to a maintenance issue and the assistance from rebooking was poor. I was travelling with a bad knee and needed assistance waited in one place more than 3 hours before someone came with a wheelchair. The woman next to me was a 91 year old great grandmother who had waited more than 4 hours. There were moments of support from the staff but it appeared as they were going against the direction of management. It was apathy, lack of ownership and dismissive responses with small moments of kindness and understanding typically from grey haired, female, veteran staff..

Everything was great except it became so hot on the plane I couldn’t sleep on my red eye flight. It didn’t really cool down till we started descending.

The only thing is if Wi-Fi is available after you land and taxi to the gate. It takes forever to get to the gate, and having the Wi-Fi continue would be great to bide the time at least 5 minutes before you arrive at the entrance. That is my only comment; otherwise, everything was good.

Airplane was cold. Flight attendants were rude. Phone charger did not work. No food available.

Experience was fine. Seats were cramped, and we had to wait for repairs before we could take of. Even though the door remained open, we were warned that leaving the plane could cause difficulty trying to fly out later. Staff was pleasant, and climate control was fortunately working. We had trouble at the DFW terminal, but I don't think that was AA's fault.

This flight was fine but had no time to breathe as the connection was late from Sea to ORD.. Super stressful. If we checked bags, the trip would have been very distressed.

Everything you need to know for your flight from Seattle to Buenos Aires

Information on your arrival and departure airports