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Cheap flights from Knoxville to Buenos Aires from $435

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 10/2. 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

Multiple Airlines Logo
4:12 pm - 3:45 amTYS-EZE
34h 33m3 stops
Multiple Airlines Logo
4:45 pm - 10:59 pmEZE-TYS
32h 14m3 stops
$868Multiple Airlines
Find Deal
sáb., nov. 1 - sáb., nov. 8
Multiple Airlines Logo
4:12 pm - 3:45 amTYS-EZE
34h 33m3 stops
Multiple Airlines Logo
4:05 am - 9:04 amEZE-TYS
30h 59m3 stops
$870Multiple Airlines
Find Deal
sáb., nov. 1 - vie., nov. 7
Multiple Airlines Logo
9:58 am - 3:10 pmTYS-EZE
28h 12m3 stops
Multiple Airlines Logo
12:54 pm - 10:26 pmEZE-TYS
35h 32m3 stops
$912Multiple Airlines
Find Deal
jue., oct. 30 - jue., nov. 6
Avianca Logo
7:20 pm - 5:50 amTYS-EZE
33h 30m2 stops
Avianca Logo
4:55 pm - 10:48 amEZE-TYS
19h 53m2 stops
$974Avianca
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sáb., nov. 1 - sáb., nov. 8
United Airlines Logo
7:05 am - 8:20 amTYS-EZE
24h 15m1 stop
United Airlines Logo
10:05 pm - 8:09 pmEZE-TYS
24h 04m1 stop
$1,050United Airlines
Find Deal
jue., oct. 30 - jue., nov. 6
United Airlines Logo
9:50 am - 6:20 amTYS-EZE
19h 30m2 stops
United Airlines Logo
10:05 pm - 6:04 pmEZE-TYS
21h 59m1 stop
$1,055United Airlines
Find Deal
jue., oct. 30 - jue., nov. 6
American Airlines Logo
4:07 pm - 10:50 amTYS-EZE
16h 43m2 stops
American Airlines Logo
10:10 am - 11:45 pmEZE-TYS
15h 35m2 stops
$1,160American Airlines
Find Deal
jue., ene. 15 - vie., ene. 30
LATAM Airlines Logo
6:10 pm - 2:55 pmTYS-EZE
18h 45m2 stops
LATAM Airlines Logo
4:05 am - 11:44 pmEZE-TYS
21h 39m2 stops
$1,260LATAM Airlines
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jue., ene. 15 - jue., ene. 29
LATAM Airlines Logo
1:54 pm - 9:35 amTYS-EZE
17h 41m2 stops
LATAM Airlines Logo
11:00 am - 11:44 pmEZE-TYS
14h 44m2 stops
$1,265LATAM Airlines
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jue., ene. 1 - sáb., ene. 17
American Airlines Logo
4:21 pm - 8:30 amTYS-EZE
14h 09m1 stop
American Airlines Logo
9:40 pm - 4:43 pmEZE-TYS
21h 03m1 stop
$1,428American Airlines
Find Deal
vie., ene. 2 - sáb., ene. 17

United Airlines flights from Knoxville to Buenos Aires

Our best United Airlines deals on Knoxville to Buenos Aires flight tickets
United Airlines
Oct 30
TYS7:05 amKnoxville McGhee Tyson
24h 15m
1 stop
EZE8:20 amBuenos Aires Ministro Pistarini
Nov 6
EZE10:05 pmBuenos Aires Ministro Pistarini
24h 04m
1 stop
TYS8:09 pmKnoxville McGhee Tyson
$1,050
Find similar
United Airlines
Oct 30
TYS9:50 amKnoxville McGhee Tyson
19h 30m
2 stops
EZE6:20 amBuenos Aires Ministro Pistarini
Nov 6
EZE10:05 pmBuenos Aires Ministro Pistarini
21h 59m
1 stop
TYS6:04 pmKnoxville McGhee Tyson
$1,055
Find similar
United Airlines
Jan 15
TYS5:00 pmKnoxville McGhee Tyson
36h 20m
1 stop
EZE7:20 amBuenos Aires Ministro Pistarini
Jan 30
EZE11:55 pmBuenos Aires Ministro Pistarini
20h 10m
1 stop
TYS6:05 pmKnoxville McGhee Tyson
$1,065
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 15
TYS4:07 pmKnoxville McGhee Tyson
16h 43m
2 stops
EZE10:50 amBuenos Aires Ministro Pistarini
Jan 30
EZE10:10 amBuenos Aires Ministro Pistarini
15h 35m
2 stops
TYS11:45 pmKnoxville McGhee Tyson
$1,160
Find similar
American Airlines
Jan 2
TYS4:21 pmKnoxville McGhee Tyson
14h 09m
1 stop
EZE8:30 amBuenos Aires Ministro Pistarini
Jan 17
EZE9:40 pmBuenos Aires Ministro Pistarini
21h 03m
1 stop
TYS4:43 pmKnoxville McGhee Tyson
$1,428
Find similar
American Airlines
Jan 2
TYS5:40 pmKnoxville McGhee Tyson
15h 00m
2 stops
EZE10:40 amBuenos Aires Ministro Pistarini
Jan 17
EZE11:59 pmBuenos Aires Ministro Pistarini
18h 44m
1 stop
TYS4:43 pmKnoxville McGhee Tyson
$1,433
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 septiembre 17, 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

sáb. 11/1

4:12 pm-3:45 am

3 stops34h 33m

Buenos Aires Ministro Pistarini

sáb. 11/8

4:45 pm-10:59 pm

3 stops32h 14m

$868

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

sáb. 11/1

4:12 pm-3:45 am

3 stops34h 33m

Buenos Aires Ministro Pistarini

vie. 11/7

4:05 am-9:04 am

3 stops30h 59m

$870

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

jue. 10/30

9:58 am-3:10 pm

3 stops28h 12m

Buenos Aires Ministro Pistarini

jue. 11/6

12:54 pm-10:26 pm

3 stops35h 32m

$912

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

sáb. 11/1

7:20 pm-5:50 am

2 stops33h 30m

Buenos Aires Ministro Pistarini

sáb. 11/8

4:55 pm-10:48 am

2 stops19h 53m

$974

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

jue. 10/30

7:05 am-8:20 am

1 stop24h 15m

Buenos Aires Ministro Pistarini

jue. 11/6

10:05 pm-8:09 pm

1 stop24h 04m

$1,050

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

jue. 10/30

9:50 am-6:20 am

2 stops19h 30m

Buenos Aires Ministro Pistarini

jue. 11/6

10:05 pm-6:04 pm

1 stop21h 59m

$1,055

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

jue. 1/15

4:07 pm-10:50 am

2 stops16h 43m

Buenos Aires Ministro Pistarini

vie. 1/30

10:10 am-11:45 pm

2 stops15h 35m

$1,160

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

jue. 1/15

6:10 pm-2:55 pm

2 stops18h 45m

Buenos Aires Ministro Pistarini

jue. 1/29

4:05 am-11:44 pm

2 stops21h 39m

$1,260

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

jue. 1/1

1:54 pm-9:35 am

2 stops17h 41m

Buenos Aires Ministro Pistarini

sáb. 1/17

11:00 am-11:44 pm

2 stops14h 44m

$1,265

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

vie. 1/2

4:21 pm-8:30 am

1 stop14h 09m

Buenos Aires Ministro Pistarini

sáb. 1/17

9:40 pm-4:43 pm

1 stop21h 03m

$1,428

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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