$144+ Cheap flights from San Francisco to Knoxville (SFO - TYS)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — TYS
Jul 3 — Jul 101
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from San Francisco to KnoxvilleExplore the most affordable flight options available from San Francisco to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 3, 2026.
Explore the most affordable flight options available from San Francisco to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 3, 2026.
This American Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:03 pm
SFO
- TYS
1 stop7h 41m
American Airlines
Tue 9/222:43 pm
TYS
- SFO
1 stop9h 07m
American Airlines
Deal found 5/30![American Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:08 pm
SFO
- TYS
1 stop25h 19m
Multiple Airlines
Thu 8/137:00 am
TYS
- SFO
2 stops16h 40m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:08 pm
SFO
- TYS
1 stop25h 29m
Multiple Airlines
Thu 8/137:00 am
TYS
- SFO
2 stops16h 40m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$302
This American Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:28 pm
SFO
- TYS
1 stop7h 15m
American Airlines
Thu 8/205:33 pm
TYS
- SFO
1 stop9h 38m
American Airlines
Deal found 6/1![American Airlines logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/410:23 pm
SFO
- TYS
2 stops46h 14m
Multiple Airlines
Thu 8/137:00 am
TYS
- SFO
1 stop20h 18m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/410:59 pm
SFO
- TYS
1 stop8h 21m
Delta
Wed 8/124:38 pm
TYS
- SFO
1 stop8h 20m
Delta
Deal found 6/1![Delta logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:00 pm
SFO
- TYS
1 stop13h 57m
Multiple Airlines
Thu 8/137:00 am
TYS
- SFO
2 stops16h 40m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:08 pm
SFO
- TYS
1 stop25h 19m
Multiple Airlines
Fri 8/149:08 pm
TYS
- SFO
2 stops22h 28m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$344
This American Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:00 am
SFO
- TYS
1 stop9h 59m
American Airlines
Thu 8/201:46 pm
TYS
- SFO
1 stop7h 03m
American Airlines
Deal found 6/1![American Airlines logo]()
$347
Best flights from San Francisco to KnoxvilleDiscover carefully curated flight deals from San Francisco to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 3, 2026.
Discover carefully curated flight deals from San Francisco to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 3, 2026.
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:59 pm
SFO
- TYS
1 stop8h 21m
Delta
Wed 8/124:38 pm
TYS
- SFO
1 stop8h 20m
Delta
Deal found 6/1![Delta logo]()
$367
This United Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1212:45 am
SFO
- TYS
1 stop7h 34m
United Airlines
Tue 6/166:00 am
TYS
- SFO
1 stop8h 44m
United Airlines
Deal found 5/30![United Airlines logo]()
$469
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/285:30 am
SFO
- TYS
1 stop9h 50m
Southwest
Mon 7/137:45 pm
TYS
- SFO
2 stops7h 50m
Southwest
Deal found 6/1![Southwest logo]()
$553
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/712:25 pm
SFO
- TYS
1 stop7h 35m
Delta
Thu 8/135:45 am
TYS
- SFO
1 stop7h 37m
Delta
Deal found 6/1![Delta logo]()
$402
This Delta deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:30 pm
SFO
- TYS
1 stop9h 36m
Delta
Sun 10/257:20 pm
TYS
- SFO
1 stop7h 55m
Delta
Deal found 5/30![Delta logo]()
$426
This United Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1611:30 pm
SFO
- TYS
1 stop7h 15m
United Airlines
Mon 10/197:20 pm
TYS
- SFO
1 stop8h 56m
United Airlines
Deal found 5/31![United Airlines logo]()
$562
This Delta deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1411:59 pm
SFO
- TYS
1 stop6h 39m
Delta
Wed 6/173:54 pm
TYS
- SFO
1 stop9h 55m
Delta
Deal found 5/31![Delta logo]()
$469
This Southwest deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:00 am
SFO
- TYS
2 stops10h 20m
Southwest
Thu 7/94:20 pm
TYS
- SFO
2 stops9h 05m
Southwest
Deal found 5/29![Southwest logo]()
$582
This United Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:45 am
SFO
- TYS
1 stop9h 12m
United Airlines
Mon 8/316:02 pm
TYS
- SFO
1 stop9h 48m
United Airlines
Deal found 5/30![United Airlines logo]()
$562
This United Airlines deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/69:30 pm
SFO
- TYS
1 stop10h 12m
United Airlines
Thu 7/96:00 am
TYS
- SFO
1 stop8h 38m
United Airlines
Deal found 5/29![United Airlines logo]()
$567
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:59 pm
SFO
- TYS
2 stops9h 41m
Delta
Sun 8/309:33 am
TYS
- SFO
1 stop8h 14m
Delta
Deal found 6/1![Delta logo]()
$546
Last-minute flights from San Francisco to KnoxvilleDiscover last-minute flight deals from San Francisco to Knoxville. Data last updated June 3, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Knoxville. Data last updated June 3, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2312:38 pm
SFO
- TYS
1 stop27h 59m
Frontier
Mon 6/298:32 pm
TYS
- SFO
1 stop18h 11m
Frontier
Deal found 5/30![Frontier logo]()
$420
This Frontier deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2512:38 pm
SFO
- TYS
1 stop27h 59m
Frontier
Wed 7/18:32 pm
TYS
- SFO
1 stop18h 11m
Frontier
Deal found 6/2![Frontier logo]()
$370
This Booking.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/289:43 pm
SFO
- TYS
1 stop18h 54m
Frontier
Mon 7/138:19 pm
TYS
- SFO
1 stop7h 04m
Frontier
Deal found 6/2![Frontier logo]()
$403
This Priceline deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:00 am
SFO
- TYS
1 stop10h 37m
Frontier
Wed 7/158:19 pm
TYS
- SFO
1 stop7h 04m
Frontier
Deal found 5/29![Frontier logo]()
$350
This Priceline deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:00 am
SFO
- TYS
1 stop10h 37m
Frontier
Wed 7/88:19 pm
TYS
- SFO
1 stop7h 04m
Frontier
Deal found 6/1![Frontier logo]()
$390
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/612:45 am
SFO
- TYS
1 stop7h 34m
United Airlines
Tue 7/75:45 pm
TYS
- SFO
1 stop9h 47m
United Airlines
Deal found 6/2![United Airlines logo]()
$395
This Priceline deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/66:00 am
SFO
- TYS
1 stop10h 24m
Frontier
Wed 7/88:19 pm
TYS
- SFO
1 stop7h 04m
Frontier
Deal found 5/30![Frontier logo]()
$410
This CheapOair deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:39 pm
SFO
- TYS
1 stop18h 45m
Frontier
Mon 7/138:19 pm
TYS
- SFO
1 stop7h 04m
Frontier
Deal found 5/29![Frontier logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:23 pm
SFO
- TYS
2 stops20h 01m
Multiple Airlines
Mon 7/202:47 pm
TYS
- SFO
1 stop27h 38m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1411:59 pm
SFO
- TYS
1 stop8h 11m
Delta
Wed 7/225:23 pm
TYS
- SFO
1 stop8h 12m
Delta
Deal found 6/2![Delta logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/157:08 pm
SFO
- TYS
1 stop24h 48m
Multiple Airlines
Mon 7/202:47 pm
TYS
- SFO
1 stop27h 38m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$385
One-way flights from San Francisco to KnoxvilleSearch for one-way flight options from San Francisco to Knoxville. Find affordable one-way fares based on user searches. Data last updated June 3, 2026.
Search for one-way flight options from San Francisco to Knoxville. Find affordable one-way fares based on user searches. Data last updated June 3, 2026.
This Delta deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/121:45 pm
SFO
- TYS
1 stop7h 07m
Delta
Deal found 5/31![Delta logo]()
$144
This Southwest deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1211:05 pm
SFO
- TYS
1 stop9h 50m
Southwest
Deal found 5/29![Southwest logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:30 pm
SFO
- TYS
2 stops28h 07m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:42 am
SFO
- TYS
1 stop27h 31m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:18 am
SFO
- TYS
2 stops26h 41m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:11 pm
SFO
- TYS
2 stops17h 33m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:08 pm
SFO
- TYS
1 stop25h 29m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/89:00 pm
SFO
- TYS
2 stops36h 03m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$174
Find flight deals from San Francisco to Knoxville
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $287 (American Airlines) |
One-way from | $144 (Delta) |
Popular in | November |
Cheapest in | August |
Average price | $543 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Knoxville 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, Cheapflights users made 2,558,603 searches. Data last updated June 3, 2026.
Use the filters below to find and compare flights from San Francisco to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoKnoxville
SFO - TYS
SFOTYS
San Francisco
Mon 8/10
10:59 pm-10:20 am
1 stop8h 21m
Knoxville McGhee Tyson
Wed 8/12
4:38 pm-9:58 pm
1 stop8h 20m
$367
Quickest round-trip
San FranciscoKnoxville
SFO - TYS
SFOTYS
San Francisco
Fri 8/7
12:25 pm-11:00 pm
1 stop7h 35m
Knoxville McGhee Tyson
Thu 8/13
5:45 am-10:22 am
1 stop7h 37m
$402
San FranciscoKnoxville
SFO - TYS
SFOTYS
San Francisco
Tue 10/20
10:30 pm-11:06 am
1 stop9h 36m
Knoxville McGhee Tyson
Sun 10/25
7:20 pm-12:15 am
1 stop7h 55m
$426
San FranciscoKnoxville
SFO - TYS
SFOTYS
San Francisco
Fri 6/12
12:45 am-11:19 am
1 stop7h 34m
Knoxville McGhee Tyson
Tue 6/16
6:00 am-11:44 am
1 stop8h 44m
$469
San FranciscoKnoxville
SFO - TYS
SFOTYS
San Francisco
Sun 6/14
11:59 pm-9:38 am
1 stop6h 39m
Knoxville McGhee Tyson
Wed 6/17
3:54 pm-10:49 pm
1 stop9h 55m
$469
San FranciscoKnoxville
SFO - TYS
SFOTYS
San Francisco
Thu 8/27
8:59 pm-9:40 am
2 stops9h 41m
Knoxville McGhee Tyson
Sun 8/30
9:33 am-2:47 pm
1 stop8h 14m
$546
San FranciscoKnoxville
SFO - TYS
SFOTYS
San Francisco
Sun 6/28
5:30 am-6:20 pm
1 stop9h 50m
Knoxville McGhee Tyson
Mon 7/13
7:45 pm-12:35 am
2 stops7h 50m
$553
San FranciscoKnoxville
SFO - TYS
SFOTYS
San Francisco
Fri 10/16
11:30 pm-9:45 am
1 stop7h 15m
Knoxville McGhee Tyson
Mon 10/19
7:20 pm-1:16 am
1 stop8h 56m
$562
San FranciscoKnoxville
SFO - TYS
SFOTYS
San Francisco
Wed 8/26
12:45 am-12:57 pm
1 stop9h 12m
Knoxville McGhee Tyson
Mon 8/31
6:02 pm-12:50 am
1 stop9h 48m
$562
San FranciscoKnoxville
SFO - TYS
SFOTYS
San Francisco
Mon 7/6
9:30 pm-10:42 am
1 stop10h 12m
Knoxville McGhee Tyson
Thu 7/9
6:00 am-11:38 am
1 stop8h 38m
$567
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from San Francisco to Knoxville
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Knoxville in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on San Francisco-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Knoxville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Knoxville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Francisco to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from San Francisco with our price prediction graph.
SFO-TYS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to Knoxville
How far ahead should I book a flight from San Francisco to Knoxville?
Booking 22 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Knoxville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from San Francisco to Knoxville?
Currently, August is the cheapest month in which you can book a flight from San Francisco to Knoxville (average of $388). Flying from San Francisco to Knoxville in November is currently the most expensive (average of $572). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from San Francisco to Knoxville?
Reviews of airlines servicing Knoxville
Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated June 3, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from San Francisco to Knoxville to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Overall
7.9
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Overall
7.9
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Overall
7.9
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Overall
7.9
Crew
8.5
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsCherokee
Crossville
Morristown
Bryson City
Murphy
Alcoa
Oak Ridge
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Other flights to Knoxville
Explore flights to Knoxville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 3, 2026.
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Top 4 airlines flying from San Francisco to Knoxville
Discover the top 4 airlines that operate flights from San Francisco to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$89 | Average$267 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$308 | Average$462 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$308 | Average$506 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$328 | Average$536 | FlexibilityNo cancel fee | On-time69% |