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Cheap flights from Knoxville to Buenos Aires from $413

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Buenos Aires departing on 1/1. 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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Cheap round-trip flights

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United Airlines Logo
5:35 pm - 7:20 amTYS-EZE
35h 45m2 stops
United Airlines Logo
11:55 pm - 11:44 pmEZE-TYS
25h 49m1 stop
$1,006United Airlines
Find Deal
Sun, Jan 4 - Thu, Jan 15
United Airlines Logo
5:35 pm - 7:20 amTYS-EZE
35h 45m2 stops
United Airlines Logo
11:55 pm - 9:02 pmEZE-TYS
47h 07m2 stops
$1,014United Airlines
Find Deal
Sun, Jan 4 - Thu, Jan 15
Multiple Airlines Logo
6:30 am - 10:20 amTYS-EZE
25h 50m2 stops
Multiple Airlines Logo
12:15 pm - 11:09 amEZE-TYS
24h 54m3 stops
$1,060Multiple Airlines
Find Deal
Fri, Jan 2 - Fri, Jan 9
Multiple Airlines Logo
6:00 am - 5:10 amTYS-EZE
21h 10m3 stops
Multiple Airlines Logo
12:15 pm - 11:09 amEZE-TYS
24h 54m3 stops
$1,109Multiple Airlines
Find Deal
Fri, Jan 2 - Fri, Jan 9
American Airlines Logo
7:01 pm - 10:40 amTYS-EZE
13h 39m1 stop
American Airlines Logo
10:25 pm - 3:46 pmEZE-TYS
19h 21m1 stop
$1,411American Airlines
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Sun, Jan 4 - Thu, Jan 15
LATAM Airlines Logo
12:00 pm - 6:05 amTYS-EZE
16h 05m2 stops
LATAM Airlines Logo
3:55 pm - 10:17 amEZE-TYS
20h 22m2 stops
$1,506LATAM Airlines
Find Deal
Fri, Jan 2 - Sat, Jan 17
LATAM Airlines Logo
11:25 am - 6:05 amTYS-EZE
16h 40m2 stops
LATAM Airlines Logo
7:45 am - 11:28 pmEZE-TYS
17h 43m2 stops
$1,545LATAM Airlines
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Thu, Nov 27 - Sun, Dec 7
Delta Logo
3:53 pm - 9:00 amTYS-EZE
15h 07m1 stop
Delta Logo
8:55 pm - 10:46 amEZE-TYS
15h 51m1 stop
$1,561Delta
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Thu, Nov 27 - Sat, Dec 6
American Airlines Logo
12:18 pm - 8:30 amTYS-EZE
18h 12m1 stop
American Airlines Logo
9:40 pm - 5:08 pmEZE-TYS
21h 28m1 stop
$1,599American Airlines
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Fri, Jan 2 - Sat, Jan 17
Delta Logo
2:49 pm - 7:20 amTYS-EZE
14h 31m1 stop
Delta Logo
8:55 pm - 5:09 pmEZE-TYS
22h 14m1 stop
$1,601Delta
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Fri, Nov 28 - Sat, Dec 6

LATAM Airlines flights from Knoxville to Buenos Aires

Our best LATAM Airlines deals on Knoxville to Buenos Aires flight tickets
LATAM Airlines
Jan 2
TYS12:00 pmKnoxville McGhee Tyson
16h 05m
2 stops
EZE6:05 amBuenos Aires Ministro Pistarini
Jan 17
EZE3:55 pmBuenos Aires Ministro Pistarini
20h 22m
2 stops
TYS10:17 amKnoxville McGhee Tyson
$1,506
Find similar
LATAM Airlines
Nov 27
TYS11:25 amKnoxville McGhee Tyson
16h 40m
2 stops
EZE6:05 amBuenos Aires Ministro Pistarini
Dec 7
EZE7:45 amBuenos Aires Ministro Pistarini
17h 43m
2 stops
TYS11:28 pmKnoxville McGhee Tyson
$1,545
Find similar
LATAM Airlines
Jan 28
TYS11:58 amKnoxville McGhee Tyson
16h 07m
2 stops
EZE6:05 amBuenos Aires Ministro Pistarini
Feb 1
EZE4:05 amBuenos Aires Ministro Pistarini
21h 40m
2 stops
TYS11:45 pmKnoxville McGhee Tyson
$1,643
Find similar

American Airlines flights from Knoxville to Buenos Aires

Our best American Airlines deals on Knoxville to Buenos Aires flight tickets
American Airlines
Jan 4
TYS7:01 pmKnoxville McGhee Tyson
13h 39m
1 stop
EZE10:40 amBuenos Aires Ministro Pistarini
Jan 15
EZE10:25 pmBuenos Aires Ministro Pistarini
19h 21m
1 stop
TYS3:46 pmKnoxville McGhee Tyson
$1,411
Find similar
American Airlines
Jan 2
TYS12:18 pmKnoxville McGhee Tyson
18h 12m
1 stop
EZE8:30 amBuenos Aires Ministro Pistarini
Jan 17
EZE9:40 pmBuenos Aires Ministro Pistarini
21h 28m
1 stop
TYS5:08 pmKnoxville McGhee Tyson
$1,599
Find similar
American Airlines
Jan 2
TYS10:09 amKnoxville McGhee Tyson
19h 21m
2 stops
EZE7:30 amBuenos Aires Ministro Pistarini
Jan 17
EZE11:59 pmBuenos Aires Ministro Pistarini
19h 09m
1 stop
TYS5:08 pmKnoxville McGhee Tyson
$1,603
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville 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 November 4, 2025.
Use the filters below to find and compare flights from Knoxville to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Sun 1/4

5:35 pm-7:20 am

2 stops35h 45m

Buenos Aires Ministro Pistarini

Thu 1/15

11:55 pm-11:44 pm

1 stop25h 49m

$1,006

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Sun 1/4

5:35 pm-7:20 am

2 stops35h 45m

Buenos Aires Ministro Pistarini

Thu 1/15

11:55 pm-9:02 pm

2 stops47h 07m

$1,014

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Fri 1/2

6:30 am-10:20 am

2 stops25h 50m

Buenos Aires Ministro Pistarini

Fri 1/9

12:15 pm-11:09 am

3 stops24h 54m

$1,060

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Fri 1/2

6:00 am-5:10 am

3 stops21h 10m

Buenos Aires Ministro Pistarini

Fri 1/9

12:15 pm-11:09 am

3 stops24h 54m

$1,109

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Sun 1/4

7:01 pm-10:40 am

1 stop13h 39m

Buenos Aires Ministro Pistarini

Thu 1/15

10:25 pm-3:46 pm

1 stop19h 21m

$1,411

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Fri 1/2

12:00 pm-6:05 am

2 stops16h 05m

Buenos Aires Ministro Pistarini

Sat 1/17

3:55 pm-10:17 am

2 stops20h 22m

$1,506

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Thu 11/27

11:25 am-6:05 am

2 stops16h 40m

Buenos Aires Ministro Pistarini

Sun 12/7

7:45 am-11:28 pm

2 stops17h 43m

$1,545

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Thu 11/27

3:53 pm-9:00 am

1 stop15h 07m

Buenos Aires Ministro Pistarini

Sat 12/6

8:55 pm-10:46 am

1 stop15h 51m

$1,561

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Fri 1/2

12:18 pm-8:30 am

1 stop18h 12m

Buenos Aires Ministro Pistarini

Sat 1/17

9:40 pm-5:08 pm

1 stop21h 28m

$1,599

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Fri 11/28

2:49 pm-7:20 am

1 stop14h 31m

Buenos Aires Ministro Pistarini

Sat 12/6

8:55 pm-5:09 pm

1 stop22h 14m

$1,601

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Buenos Aires from

How to get the cheapest flight ticket from Knoxville 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 day to depart on your flight to Buenos Aires?

On average, the least expensive day to fly to Buenos Aires from Knoxville is on a Monday. momondo users have found tickets for Monday departures for as low as $1,236. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Thursday is $1,946.

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 evening. Flights from Knoxville to Buenos Aires during this time can be as low as $1,532. Try not to purchase tickets in the afternoon because they tend to be around $1,576. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You could potentially save up to 32% on your flight if you consider stops on a Knoxville to Buenos Aires flight.

When to book flights from Knoxville to Buenos Aires

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Buenos Aires according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Buenos Aires (TYS to BUE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Buenos Aires

Direct flights

None
There are no direct flights from Knoxville to Buenos Aires. There are no popular flight routes from Knoxville to Buenos Aires.
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  • How far is Knoxville McGhee Tyson to Buenos Aires by plane?

    Buenos Aires is 5142.9 mi away from Knoxville McGhee Tyson. Typically, this will take 13h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Buenos Aires?

    Prices for flights from Knoxville McGhee Tyson Airport to Buenos Aires were last updated today.

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Buenos Aires?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson 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 Knoxville to Buenos Aires?

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Buenos Aires?

It is quick and easy to find Knoxville to Buenos Aires flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Buenos Aires that suits you.

Can I find flights from Knoxville to Buenos Aires with flexible booking policies on momondo?

Yes. All flights to Buenos Aires from Knoxville on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Knoxville to Buenos Aires?

momondo provides multiple filters to help you find the best flight to Buenos Aires from Knoxville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Knoxville to Buenos Aires right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Knoxville 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
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport