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Cheap flights from Knoxville to San José from $147

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 San José departing on 3/18. 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
0 bags

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Find the cheapest flights from Knoxville to San José

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:20 pm - 7:45 am
TYS
-
SJO
13h 25m2 stops
Multiple Airlines Logo
12:33 pm - 8:39 am
SJO
-
TYS
19h 06m2 stops
$388Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
5:59 pm - 12:22 pm
TYS
-
SJO
19h 23m1 stop
Multiple Airlines Logo
1:30 pm - 8:39 am
SJO
-
TYS
18h 09m1 stop
$408Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
Avianca Logo
7:20 pm - 3:50 am
TYS
-
SJO
9h 30m1 stop
Avianca Logo
4:15 pm - 10:57 am
SJO
-
TYS
17h 42m2 stops
$409Avianca
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
5:59 pm - 12:22 pm
TYS
-
SJO
19h 23m1 stop
Multiple Airlines Logo
4:15 pm - 5:53 pm
SJO
-
TYS
24h 38m2 stops
$413Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
5:59 pm - 12:07 am
TYS
-
SJO
31h 08m3 stops
Multiple Airlines Logo
12:33 pm - 8:39 am
SJO
-
TYS
19h 06m2 stops
$432Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
7:20 pm - 8:40 am
TYS
-
SJO
14h 20m2 stops
Multiple Airlines Logo
5:10 pm - 10:57 am
SJO
-
TYS
16h 47m1 stop
$438Multiple Airlines
Fri, Jan 16 - Sat, Jan 24
Multiple Airlines Logo
6:18 pm - 11:37 am
TYS
-
SJO
18h 19m1 stop
Multiple Airlines Logo
12:33 pm - 12:10 pm
SJO
-
TYS
22h 37m1 stop
$457Multiple Airlines
Mon, Jan 12 - Mon, Jan 19
Multiple Airlines Logo
8:30 am - 11:37 am
TYS
-
SJO
28h 07m2 stops
Multiple Airlines Logo
12:33 pm - 12:10 pm
SJO
-
TYS
22h 37m1 stop
$458Multiple Airlines
Mon, Jan 12 - Mon, Jan 19
Avianca Logo
7:20 pm - 11:25 am
TYS
-
SJO
17h 05m2 stops
Avianca Logo
4:15 pm - 10:57 am
SJO
-
TYS
17h 42m2 stops
$462Avianca
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
7:15 am - 11:37 am
TYS
-
SJO
29h 22m3 stops
Multiple Airlines Logo
1:30 pm - 12:10 pm
SJO
-
TYS
21h 40m2 stops
$463Multiple Airlines
Mon, Jan 12 - Mon, Jan 19

Avianca flights from Knoxville to San José

Our best Avianca deals on Knoxville to San José flight tickets
Avianca
Jan 31
TYS7:20 pmKnoxville McGhee Tyson
9h 30m
1 stop
SJO3:50 amSan José Juan Santamaria Intl
Feb 7
SJO4:15 pmSan José Juan Santamaria Intl
17h 42m
2 stops
TYS10:57 amKnoxville McGhee Tyson
$409
Find similar
Avianca
Jan 31
TYS7:20 pmKnoxville McGhee Tyson
17h 05m
2 stops
SJO11:25 amSan José Juan Santamaria Intl
Feb 7
SJO4:15 pmSan José Juan Santamaria Intl
17h 42m
2 stops
TYS10:57 amKnoxville McGhee Tyson
$462
Find similar
Avianca
Jan 16
TYS7:20 pmKnoxville McGhee Tyson
17h 05m
3 stops
SJO11:25 amSan José Juan Santamaria Intl
Jan 24
SJO4:15 pmSan José Juan Santamaria Intl
17h 42m
2 stops
TYS10:57 amKnoxville McGhee Tyson
$663
Find similar

United Airlines flights from Knoxville to San José

Our best United Airlines deals on Knoxville to San José flight tickets
United Airlines
Dec 19
TYS7:00 amKnoxville McGhee Tyson
7h 15m
1 stop
SJO1:15 pmSan José Juan Santamaria Intl
Dec 23
SJO6:30 amSan José Juan Santamaria Intl
16h 12m
1 stop
TYS11:42 pmKnoxville McGhee Tyson
$542
Find similar
United Airlines
Jan 26
TYS6:59 amKnoxville McGhee Tyson
7h 16m
1 stop
SJO1:15 pmSan José Juan Santamaria Intl
Jan 29
SJO6:30 amSan José Juan Santamaria Intl
16h 14m
1 stop
TYS11:44 pmKnoxville McGhee Tyson
$604
Find similar
United Airlines
Dec 24
TYS6:45 amKnoxville McGhee Tyson
31h 11m
1 stop
SJO12:56 pmSan José Juan Santamaria Intl
Dec 31
SJO6:30 amSan José Juan Santamaria Intl
10h 40m
1 stop
TYS6:10 pmKnoxville McGhee Tyson
$612
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to San José 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 December 15, 2025.
Use the filters below to find and compare flights from Knoxville to San José that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Sat 1/31

7:20 pm-7:45 am

2 stops13h 25m

San José Juan Santamaria Intl

Sat 2/7

12:33 pm-8:39 am

2 stops19h 06m

$388

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Sat 1/31

5:59 pm-12:22 pm

1 stop19h 23m

San José Juan Santamaria Intl

Sat 2/7

1:30 pm-8:39 am

1 stop18h 09m

$408

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Sat 1/31

7:20 pm-3:50 am

1 stop9h 30m

San José Juan Santamaria Intl

Sat 2/7

4:15 pm-10:57 am

2 stops17h 42m

$409

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Sat 1/31

5:59 pm-12:22 pm

1 stop19h 23m

San José Juan Santamaria Intl

Sat 2/7

4:15 pm-5:53 pm

2 stops24h 38m

$413

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Sat 1/31

5:59 pm-12:07 am

3 stops31h 08m

San José Juan Santamaria Intl

Sat 2/7

12:33 pm-8:39 am

2 stops19h 06m

$432

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Fri 1/16

7:20 pm-8:40 am

2 stops14h 20m

San José Juan Santamaria Intl

Sat 1/24

5:10 pm-10:57 am

1 stop16h 47m

$438

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 1/12

6:18 pm-11:37 am

1 stop18h 19m

San José Juan Santamaria Intl

Mon 1/19

12:33 pm-12:10 pm

1 stop22h 37m

$457

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 1/12

8:30 am-11:37 am

2 stops28h 07m

San José Juan Santamaria Intl

Mon 1/19

12:33 pm-12:10 pm

1 stop22h 37m

$458

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Sat 1/31

7:20 pm-11:25 am

2 stops17h 05m

San José Juan Santamaria Intl

Sat 2/7

4:15 pm-10:57 am

2 stops17h 42m

$462

KnoxvilleSan José

TYS - SJO

TYSSJO

Knoxville McGhee Tyson

Mon 1/12

7:15 am-11:37 am

3 stops29h 22m

San José Juan Santamaria Intl

Mon 1/19

1:30 pm-12:10 pm

2 stops21h 40m

$463

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San José from

How to get the cheapest flight ticket from Knoxville to San José

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 month to fly to San José?

In general, August is the cheapest month to fly from Knoxville to San José. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $511. If you don’t want to visit San José in August, then you should wait until November to fly from Knoxville, when ticket prices are also cheap, with an average price of $530.

What is the cheapest day to depart on your flight to San José?

On average, the least expensive day to fly to San José from Knoxville is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $565. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Knoxville to San José on a Friday will generally be more expensive and average around $766. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San José?

Our data shows that the cheapest Knoxville to San José flights are usually those with departure times in the evening. Our users have found flights to San José in the evening for as low as $436. Flights in the morning are often more expensive with an average ticket price of $675.

When to book flights from Knoxville to San José

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

Cheap Knoxville to San José (TYS to SJO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to San José

Fastest flight time

6h 14m

Direct flights

None
The fastest flight from Knoxville to San José takes 6h 14m
There are no direct flights from Knoxville to San José. There are no popular flight routes from Knoxville to San José.
Search flight deals

  • How far is Knoxville McGhee Tyson to San José Juan Santamaria Intl by plane?

    San José Juan Santamaria Intl is 1797.1 mi away from Knoxville McGhee Tyson. Typically, this will take 6h 14m by plane in normal conditions.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to San José Juan Santamaria Intl Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to San José Juan Santamaria Intl Airport are updated daily.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to San José Juan Santamaria Intl Airport?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to San José Juan Santamaria Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to San José Juan Santamaria Intl Airport.

  • What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?

    The required travel and health documents for your San José Juan Santamaria Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San José Juan Santamaria Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Knoxville to San José?

Best airlines flying from Knoxville to San José

Compare and see reviews for airlines that fly from Knoxville to San José with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $463Free CancellationRating
7.9
8,008 reviews
Search Delta flights
American AirlinesPriceFrom $484Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
United AirlinesPriceFrom $491Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Jacó
Monteverde
Alajuela
Heredia
Dominical
Santa Elena
Esterillos Este

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to San José?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Knoxville to San José. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Knoxville to San José with flexible booking policies on momondo?

Yes. All flights to San José 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 San José?

Once all potential Knoxville to San José flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Knoxville to San José flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your San José trip

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