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Find cheap flights from Washington to Buenos Aires from $435

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Buenos Aires departing on 10/12. 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.
1 adult
0 bags
Tue 6/4
Tue 6/11

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In the last 7 days travelers have searched 42,830,901 times on KAYAK, and here is why:

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Good to know

Low season

July

High season

February

Cheapest flight

$435
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Seattle to Buenos Aires Ministro Pistarini

FAQs for booking flights from Washington to Buenos Aires

  • How does KAYAK find such low prices on flights from Washington 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 Washington to Buenos Aires.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires from Washington 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 Washington 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 Washington with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington 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 Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Washington to Buenos Aires?

Find which airlines fly direct from Washington to Buenos Aires, which days they fly and book direct flights.

Nonstop departures

Washington to Buenos Aires

Monday

Aerolineas Argentinas, Aeromexico, Air Canada, +33 more

Aerolineas Argentinas, Aeromexico, +34 more

Tuesday

Aerolineas Argentinas, Aeromexico, Air Europa, +31 more

Aerolineas Argentinas, Aeromexico, +32 more

Wednesday

Aerolineas Argentinas, Aeromexico, Air Canada, +33 more

Aerolineas Argentinas, Aeromexico, +34 more

Thursday

Aerolineas Argentinas, Aeromexico, Air Canada, +32 more

Aerolineas Argentinas, Aeromexico, +33 more

Friday

Aerolineas Argentinas, Aeromexico, Air Europa, +32 more

Aerolineas Argentinas, Aeromexico, +33 more

Saturday

Aerolineas Argentinas, Aeromexico, Air Canada, +31 more

Aerolineas Argentinas, Aeromexico, +32 more

Sunday

Aerolineas Argentinas, Aeromexico, Air Europa, +32 more

Aerolineas Argentinas, Aeromexico, +33 more

See more direct flights

Nonstop returns

Buenos Aires to Washington

Monday

Aerolineas Argentinas, Aeromexico, Air Canada, +33 more

Aerolineas Argentinas, Aeromexico, +34 more

Tuesday

Aerolineas Argentinas, Aeromexico, Air Europa, +31 more

Aerolineas Argentinas, Aeromexico, +32 more

Wednesday

Aerolineas Argentinas, Aeromexico, Air Canada, +33 more

Aerolineas Argentinas, Aeromexico, +34 more

Thursday

Aerolineas Argentinas, Aeromexico, Air Canada, +32 more

Aerolineas Argentinas, Aeromexico, +33 more

Friday

Aerolineas Argentinas, Aeromexico, Air Europa, +32 more

Aerolineas Argentinas, Aeromexico, +33 more

Saturday

Aerolineas Argentinas, Aeromexico, Air Canada, +31 more

Aerolineas Argentinas, Aeromexico, +32 more

Sunday

Aerolineas Argentinas, Aeromexico, Air Europa, +32 more

Aerolineas Argentinas, Aeromexico, +33 more

See more direct flights
See more direct flights

Book cheap flights from Washington to Buenos Aires

Recent round-trip flight deals

6/3Mon
2 stops
54h 05mSEA-EZE
6/10Mon
2 stops
32h 25mEZE-SEA
$962
6/3Mon
2 stops
54h 05mSEA-EZE
6/9Sun
2 stops
23h 35mEZE-SEA
$969
8/12Mon
1 stopDelta
15h 50mSEA-EZE
8/19Mon
1 stopDelta
26h 40mEZE-SEA
$1,114
9/11Wed
2 stopsAmerican Airlines
21h 05mSEA-EZE
9/16Mon
2 stopsAmerican Airlines
25h 32mEZE-SEA
$1,115
8/22Thu
2 stopsAmerican Airlines
23h 31mSEA-EZE
9/4Wed
2 stopsAmerican Airlines
23h 43mEZE-SEA
$1,117
8/12Mon
2 stopsUnited Airlines
22h 50mSEA-EZE
8/22Thu
2 stopsUnited Airlines
20h 06mEZE-SEA
$1,118
8/11Sun
1 stopUnited Airlines
28h 01mSEA-EZE
8/21Wed
1 stopUnited Airlines
17h 07mEZE-SEA
$1,129
6/23Sun
1 stopDelta
36h 15mSEA-EZE
7/25Thu
1 stopDelta
22h 41mEZE-SEA
$1,130
8/13Tue
2 stopsLATAM Airlines
19h 29mSEA-AEP
8/20Tue
2 stopsLATAM Airlines
20h 10mAEP-SEA
$1,133
10/14Mon
3 stopsLATAM Airlines
28h 30mSEA-EZE
10/21Mon
2 stopsLATAM Airlines
22h 50mEZE-SEA
$1,134

Search by stops

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Recent one-way flight deals

10/12Sat
2 stopsCopa Airlines
24h 47mSEA-EZE
$435
9/4Wed
2 stops
38h 07mSEA-EZE
$443
9/4Wed
3 stopsLATAM Airlines
22h 39mSEA-AEP
$739
8/1Thu
1 stopUnited Airlines
20h 45mSEA-EZE
$746
7/30Tue
1 stopDelta
22h 30mSEA-EZE
$747
7/31Wed
1 stopDelta
36h 35mSEA-EZE
$751
10/12Sat
2 stopsLATAM Airlines
44h 01mSEA-AEP
$758
9/3Tue
2 stopsAmerican Airlines
26h 06mSEA-EZE
$767
10/7Mon
1 stopUnited Airlines
28h 01mSEA-EZE
$783
5/18Sat
2 stopsAmerican Airlines
25h 40mSEA-EZE
$917

Search by stops

Search by airline

Search by price

Last minute flights from Washington to Buenos Aires

Last minute flight, train and bus deals

5/6Mon
multi-stopCopa Airlines
34h 53mSEA-EZE
5/24Fri
multi-stopCopa Airlines
39h 35mEZE-SEA
$1,276
5/6Mon
multi-stopCopa Airlines
30h 50mSEA-EZE
5/23Thu
multi-stopCopa Airlines
49h 22mEZE-SEA
$1,357
5/6Mon
multi-stop
30h 58mSEA-EZE
5/24Fri
multi-stop
39h 10mEZE-SEA
$1,417
5/6Mon
multi-stopAeromexico
31h 35mSEA-EZE
5/24Fri
multi-stopAeromexico
36h 00mEZE-SEA
$1,592
5/6Mon
multi-stop
30h 58mSEA-EZE
5/23Thu
multi-stop
21h 13mEZE-SEA
$1,633
5/6Mon
multi-stop
19h 33mSEA-AEP
5/24Fri
multi-stop
30h 11mAEP-SEA
$1,642
5/6Mon
multi-stop
46h 50mSEA-EZE
5/24Fri
multi-stop
43h 06mEZE-SEA
$1,670
5/6Mon
multi-stop
45h 40mSEA-EZE
5/23Thu
multi-stop
34h 00mEZE-SEA
$1,731
5/10Fri
multi-stopAmerican Airlines
25h 40mSEA-EZE
5/18Sat
multi-stopAmerican Airlines
25h 37mEZE-SEA
$2,122
5/10Fri
multi-stopAmerican Airlines
25h 40mSEA-EZE
5/18Sat
multi-stopAmerican Airlines
30h 50mEZE-SEA
$2,155

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Flights to Buenos Aires

Return flight deals:

Buenos Aires - Washington

Cabin classes: