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Cheap flights from Knoxville to Buenos Aires from $1,138

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Buenos Aires departing on 9/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Knoxville to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:40 pm - 8:00 am
TYS
-
EZE
15h 20m
1 stop
United Airlines Logo
9:00 pm - 11:17 am
EZE
-
TYS
15h 17m
1 stop
$1,138United Airlines
Thu, Sep 17 - Fri, Sep 25
United Airlines Logo
1:34 pm - 8:00 am
TYS
-
EZE
17h 26m
1 stop
United Airlines Logo
9:00 pm - 11:59 pm
EZE
-
TYS
27h 59m
2 stops
$1,142United Airlines
Thu, Sep 17 - Fri, Sep 25
Delta Logo
3:55 pm - 9:40 am
TYS
-
EZE
16h 45m
2 stops
Delta Logo
8:10 pm - 11:06 am
EZE
-
TYS
15h 56m
1 stop
$1,152Delta
Sat, Oct 10 - Mon, Oct 19
LATAM Airlines Logo
7:41 pm - 9:45 am
TYS
-
EZE
13h 04m
1 stop
LATAM Airlines Logo
4:45 pm - 11:11 am
EZE
-
TYS
19h 26m
2 stops
$1,248LATAM Airlines
Fri, Aug 28 - Tue, Sep 1
LATAM Airlines Logo
12:01 pm - 9:40 am
TYS
-
EZE
20h 39m
2 stops
LATAM Airlines Logo
4:45 pm - 11:11 am
EZE
-
TYS
19h 26m
2 stops
$1,252LATAM Airlines
Fri, Aug 28 - Tue, Sep 1
LATAM Airlines Logo
3:55 pm - 9:45 am
TYS
-
EZE
16h 50m
1 stop
LATAM Airlines Logo
8:10 pm - 9:12 am
EZE
-
TYS
14h 02m
1 stop
$1,387LATAM Airlines
Sat, Oct 10 - Mon, Oct 19
United Airlines Logo
7:15 am - 8:00 am
TYS
-
EZE
23h 45m
1 stop
United Airlines Logo
9:00 pm - 1:20 pm
EZE
-
TYS
17h 20m
1 stop
$1,438United Airlines
Wed, Aug 19 - Sun, Aug 23
United Airlines Logo
10:40 am - 8:00 am
TYS
-
EZE
20h 20m
2 stops
United Airlines Logo
9:00 pm - 1:20 pm
EZE
-
TYS
17h 20m
1 stop
$1,442United Airlines
Wed, Aug 19 - Sun, Aug 23
Multiple Airlines Logo
7:19 pm - 3:40 pm
TYS
-
EZE
43h 21m
2 stops
Multiple Airlines Logo
7:35 am - 11:52 pm
EZE
-
TYS
17h 17m
2 stops
$1,577Multiple Airlines
Fri, Jul 3 - Wed, Jul 15
LATAM Airlines Logo
7:30 am - 6:10 am
TYS
-
EZE
21h 40m
2 stops
LATAM Airlines Logo
7:35 am - 9:36 am
EZE
-
TYS
27h 01m
3 stops
$1,596LATAM Airlines
Wed, Aug 19 - Sun, Aug 23

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United Airlines flights from Knoxville to Buenos Aires

Our best United Airlines deals on Knoxville to Buenos Aires flight tickets
United Airlines
Sep 17
TYS3:40 pmKnoxville McGhee Tyson
15h 20m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 25
EZE9:00 pmBuenos Aires Ministro Pistarini
15h 17m
1 stop
TYS11:17 amKnoxville McGhee Tyson
$1,138
United Airlines
Sep 17
TYS1:34 pmKnoxville McGhee Tyson
17h 26m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 25
EZE9:00 pmBuenos Aires Ministro Pistarini
27h 59m
2 stops
TYS11:59 pmKnoxville McGhee Tyson
$1,142
United Airlines
Aug 19
TYS7:15 amKnoxville McGhee Tyson
23h 45m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
Aug 23
EZE9:00 pmBuenos Aires Ministro Pistarini
17h 20m
1 stop
TYS1:20 pmKnoxville McGhee Tyson
$1,438

Air Canada flights from Knoxville to Buenos Aires

Our best Air Canada deals on Knoxville to Buenos Aires flight tickets
Air Canada
Oct 10
TYS9:45 amKnoxville McGhee Tyson
51h 45m
3 stops
EZE2:30 pmBuenos Aires Ministro Pistarini
Oct 19
EZE4:35 pmBuenos Aires Ministro Pistarini
29h 25m
3 stops
TYS9:00 pmKnoxville McGhee Tyson
$2,417
Air Canada
Jul 3
TYS5:45 amKnoxville McGhee Tyson
31h 45m
3 stops
EZE2:30 pmBuenos Aires Ministro Pistarini
Jul 15
EZE4:35 pmBuenos Aires Ministro Pistarini
32h 19m
3 stops
TYS11:54 pmKnoxville McGhee Tyson
$2,498

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 June 20, 2026.
Use the filters below to find and compare flights from Knoxville to Buenos Aires that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Thu 9/17

3:40 pm-8:00 am

1 stop15h 20m

Buenos Aires Ministro Pistarini

Fri 9/25

9:00 pm-11:17 am

1 stop15h 17m

$1,138

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Thu 9/17

1:34 pm-8:00 am

1 stop17h 26m

Buenos Aires Ministro Pistarini

Fri 9/25

9:00 pm-11:59 pm

2 stops27h 59m

$1,142

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Sat 10/10

3:55 pm-9:40 am

2 stops16h 45m

Buenos Aires Ministro Pistarini

Mon 10/19

8:10 pm-11:06 am

1 stop15h 56m

$1,152

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Fri 8/28

7:41 pm-9:45 am

1 stop13h 04m

Buenos Aires Ministro Pistarini

Tue 9/1

4:45 pm-11:11 am

2 stops19h 26m

$1,248

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Fri 8/28

12:01 pm-9:40 am

2 stops20h 39m

Buenos Aires Ministro Pistarini

Tue 9/1

4:45 pm-11:11 am

2 stops19h 26m

$1,252

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Sat 10/10

3:55 pm-9:45 am

1 stop16h 50m

Buenos Aires Ministro Pistarini

Mon 10/19

8:10 pm-9:12 am

1 stop14h 02m

$1,387

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Wed 8/19

7:15 am-8:00 am

1 stop23h 45m

Buenos Aires Ministro Pistarini

Sun 8/23

9:00 pm-1:20 pm

1 stop17h 20m

$1,438

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Wed 8/19

10:40 am-8:00 am

2 stops20h 20m

Buenos Aires Ministro Pistarini

Sun 8/23

9:00 pm-1:20 pm

1 stop17h 20m

$1,442

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Fri 7/3

7:19 pm-3:40 pm

2 stops43h 21m

Buenos Aires Ministro Pistarini

Wed 7/15

7:35 am-11:52 pm

2 stops17h 17m

$1,577

KnoxvilleBuenos Aires

TYS - EZE

TYSEZE

Knoxville McGhee Tyson

Wed 8/19

7:30 am-6:10 am

2 stops21h 40m

Buenos Aires Ministro Pistarini

Sun 8/23

7:35 am-9:36 am

3 stops27h 01m

$1,596

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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

Fastest flight time

15h 20m

Direct flights

None
The fastest flight from Knoxville to Buenos Aires takes 15h 20m
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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Frequently asked questions about flying from Knoxville to Buenos Aires

  • 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 15h 20m 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.

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