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TYS - SFO

$90 Find cheap flights from Knoxville to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to San Francisco departing on 9/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 7/1
Mon 7/8

Search hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to San Francisco, as well as popular online travel agencies
In the last 7 days travelers have searched 42,335,261 times on KAYAK, and here is why:

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Cheap flight deals from Knoxville to San Francisco (TYS-SFO)

 
These are the cheapest deals for flights from Knoxville to San Francisco currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Knoxville to San Francisco

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Knoxville to San Francisco.

Recent one-way flight deals from Knoxville to San Francisco

Only flying one-way? Below are some of the best one-way flight deals from Knoxville to San Francisco found on KAYAK recently.

Recent last minute flight deals from Knoxville to San Francisco

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Knoxville to San Francisco.

Recent direct flight deals from Knoxville to San Francisco

The latest deals for direct flights from Knoxville to San Francisco so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Knoxville to San Francisco

Find recent round-trip train or bus tickets from Knoxville to San Francisco.

All round-trip flight deals to San Francisco

The cheapest plane tickets to San Francisco found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:40 pm - 11:58 pmTYS-SFO
28h 18m1 stop
12:59 am - 9:40 pmSFO-TYS
17h 41m1 stop
$228Frontier
Find Deal
Mon, Jul 15 - Sun, Jul 21
10:40 pm - 11:58 pmTYS-SFO
28h 18m1 stop
12:59 am - 9:03 pmSFO-TYS
17h 04m1 stop
$234Frontier
Find Deal
Mon, Jul 22 - Fri, Jul 26
2:52 pm - 8:59 pmTYS-SFO
9h 07m1 stop
5:00 am - 3:40 pmSFO-TYS
7h 40m1 stop
$265American Airlines
Find Deal
Thu, Sep 19 - Tue, Sep 24
12:38 pm - 6:57 pmTYS-SFO
9h 19m1 stop
9:28 am - 9:21 pmSFO-TYS
8h 53m1 stop
$305American Airlines
Find Deal
Sat, Nov 2 - Sat, Nov 9
7:00 am - 11:21 amTYS-SFO
7h 21m1 stop
12:56 pm - 10:26 pmSFO-TYS
6h 30m1 stop
$313United Airlines
Find Deal
Mon, Aug 26 - Mon, Aug 26
6:30 am - 4:51 pmTYS-SFO
13h 21m1 stop
6:05 pm - 11:33 pmSFO-TYS
26h 28m2 stops
Fri, Jul 12 - Sun, Jul 14
7:00 am - 11:21 amTYS-SFO
7h 21m1 stop
9:10 am - 11:30 pmSFO-TYS
11h 20m2 stops
$373United Airlines
Find Deal
Thu, Sep 19 - Tue, Sep 24
5:25 am - 12:23 pmTYS-SFO
9h 58m1 stop
1:48 pm - 11:53 pmSFO-TYS
7h 05m1 stop
$378Delta
Find Deal
Sun, Jun 16 - Thu, Jun 20
6:30 am - 4:51 pmTYS-SFO
13h 21m1 stop
6:05 pm - 11:34 amSFO-TYS
14h 29m1 stop
Fri, Jul 12 - Sun, Jul 14
7:59 pm - 12:50 amTYS-SFO
7h 51m1 stop
1:48 pm - 11:53 pmSFO-TYS
7h 05m1 stop
$513Delta
Find Deal
Fri, Jun 14 - Mon, Jun 17
5:40 pm - 11:58 pmTYS-SFO
9h 18m1 stop
$90Frontier
Find Deal
Sat, Sep 28
10:40 pm - 7:07 amTYS-SFO
11h 27m1 stop
$120Frontier
Find Deal
Mon, Jul 29
2:52 pm - 8:59 pmTYS-SFO
9h 07m1 stop
$123American Airlines
Find Deal
Wed, Sep 18
11:09 am - 5:51 pmTYS-SFO
9h 42m1 stop
$124American Airlines
Find Deal
Tue, Sep 24
10:32 pm - 8:19 amTYS-SFO
12h 47m1 stop
$135Frontier
Find Deal
Fri, Jun 7
7:00 am - 11:21 amTYS-SFO
7h 21m1 stop
$169United Airlines
Find Deal
Tue, Sep 3
7:00 am - 3:18 pmTYS-SFO
11h 18m2 stops
$179United Airlines
Find Deal
Wed, Sep 18
1:30 pm - 10:52 pmTYS-SFO
36h 22m3 stops
Thu, Jun 20
7:15 am - 10:56 pmTYS-SFO
18h 41m2 stops
Mon, Jul 29
7:42 am - 2:33 pmTYS-SFO
33h 51m3 stops
$374WestJet
Find Deal
Tue, Sep 3
7:10 pm - 12:22 amTYS-SFO
8h 12m1 stop
1:48 pm - 11:53 pmSFO-TYS
7h 05m1 stop
$498Delta
Find Deal
Thu, Jun 6 - Tue, Jun 11
7:46 am - 3:04 pmTYS-SFO
10h 18m1 stop
1:48 pm - 11:53 pmSFO-TYS
7h 05m1 stop
$513Delta
Find Deal
Thu, Jun 6 - Tue, Jun 11
6:11 pm - 11:12 pmTYS-SFO
8h 01m1 stop
12:32 pm - 12:24 amSFO-TYS
8h 52m1 stop
$537American Airlines
Find Deal
Thu, Jun 6 - Tue, Jun 11
7:05 pm - 12:53 amTYS-SFO
8h 48m1 stop
12:30 am - 1:26 pmSFO-TYS
9h 56m1 stop
$598United Airlines
Find Deal
Thu, Jun 6 - Mon, Jun 10
10:00 am - 5:11 pmTYS-SFO
10h 11m1 stop
6:00 am - 11:28 pmSFO-TYS
14h 28m2 stops
$603United Airlines
Find Deal
Thu, Jun 6 - Tue, Jun 11
7:05 pm - 12:53 amTYS-SFO
8h 48m1 stop
12:30 am - 1:26 pmSFO-TYS
9h 56m1 stop
$638United Airlines
Find Deal
Thu, Jun 6 - Mon, Jun 10
7:10 pm - 12:22 amTYS-SFO
8h 12m1 stop
8:05 pm - 11:14 amSFO-TYS
12h 09m2 stops
$783Delta
Find Deal
Thu, Jun 6 - Tue, Jun 11
2:32 pm - 10:16 pmTYS-SFO
10h 44m2 stops
6:00 am - 7:00 pmSFO-TYS
10h 00m2 stops
$902American Airlines
Find Deal
Thu, Jun 6 - Tue, Jun 11
2:32 pm - 10:16 pmTYS-SFO
10h 44m2 stops
12:10 pm - 12:24 amSFO-TYS
9h 14m2 stops
$903American Airlines
Find Deal
Thu, Jun 6 - Tue, Jun 11
2:39 pm - 8:09 pmTYS-SFO
8h 30m1 stop
12:07 am - 2:51 pmSFO-TYS
11h 44m2 stops
$2,227Delta
Find Deal
Thu, Jun 6 - Mon, Jun 10

Flights from Knoxville to San Francisco - Travel Insights & Trends

Get data-powered insights and trends into flights from Knoxville to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Knoxville to San Francisco?

The average price of all flights from Knoxville to San Francisco clicked on KAYAK for each day over the last 12 months.
For Knoxville to San Francisco, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from San Francisco back to Knoxville, the best deals are generally found on Monday, with Thursday being the most expensive.

What is the cheapest month to fly from Knoxville to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Knoxville to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Knoxville to San Francisco is February, where tickets cost $400 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $558 and $552 respectively.

How far in advance should I book a flight from Knoxville to San Francisco?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Knoxville to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Knoxville to San Francisco, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 47 days before departure.

Which airlines provide the cheapest flights from Knoxville to San Francisco?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Knoxville to San Francisco found by KAYAK users in the last 72 hours was for $228 on Frontier, followed by American Airlines ($265). One-way flight deals have also been found from as low as $90 on Frontier and from $123 on American Airlines.

Good to know

Low season

February

High season

June

Cheapest flight

$90
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Knoxville to San Francisco

When to book flights from Knoxville to San Francisco

Are your dates flexible? Find out the best times to travel from Knoxville to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Knoxville to San Francisco

  • What is the cheapest flight from Knoxville to San Francisco?

    In the last 3 days, the lowest price for a flight from Knoxville to San Francisco was $90 for a one-way ticket and $228 for a round-trip.

  • Do I need a passport to fly between Knoxville and San Francisco?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Knoxville to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Knoxville to San Francisco?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Knoxville and San Francisco, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to San Francisco, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to San Francisco are Delta and United Airlines. With an average price for the route of $477 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $589 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Knoxville to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Knoxville to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knoxville to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Knoxville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knoxville to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Knoxville to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10419 reviews
8.6Crew
7.4Food
8.0Entertainment
7.9Comfort
8.2Boarding
Airline reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

8.0 ExcellentLiam, May 2024SLC - SJC
Read more about Delta reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

So so. Terrible aircraft choice for that leg of the flight.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

United airline kept delaying our flight back to Phoenix for 8 hours before they cancelled it! If they know that we are not flying out for whatever the reason is, why did they keep lying to us for hours. We could find another flight earlier or even find a hotel with a shuttle. But cancellation at about midnight was not fun. We stayed in the airport all night till the following morning when we bought an Alaska tickets to go back to Phoenix. Total of 14 hours in the airport.

Poor seating comfort, seat cushion too thin, very uncomfortable. My luggage didi not make the flight due to equipment change. At least. United had it delivered the next day. I was without my toilet items for one day.

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

There were delays on both ends. It made it less than excellent. This plane was great though

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Somehow I got “offloaded” even though I had my boarding pass and was in transit Food is horrible Staff were nice and cheerful No headphones were provided on 11 hours flight

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

The staff were very helpful with lots of refreshments on offer. The toilets were clean. The seats were comfortable and entertainment was good. No complaints, it was excellent.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

9 hours of delay!! Was not able to check my luggage that I paid for!!!

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

I am very disappointed with Frontier Airlines. They cancelled our flight because they couldn't find a crew member, and then didn't get us to our connecting flight. We had to cancel our whole vacation. We were promised flight and hotel vouchers, but they never sent them.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Worst experience I have seen. The flight was cancelled without any reason.

Book cheap flights from Knoxville to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Knoxville to San Francisco found on KAYAK in the last 72 hours.
9/28Sat
1 stopFrontier
9h 18mTYS-SFO
$90
7/29Mon
1 stopFrontier
11h 27mTYS-SFO
$120
9/18Wed
1 stopAmerican Airlines
9h 07mTYS-SFO
$123
9/24Tue
1 stopAmerican Airlines
9h 42mTYS-SFO
$124
6/7Fri
1 stopFrontier
12h 47mTYS-SFO
$135
9/3Tue
1 stopUnited Airlines
7h 21mTYS-SFO
$169
9/18Wed
2 stopsUnited Airlines
11h 18mTYS-SFO
$179
6/20Thu
3 stops
36h 22mTYS-SFO
$217
7/29Mon
2 stops
18h 41mTYS-SFO
$248
9/3Tue
3 stopsWestJet
33h 51mTYS-SFO
$374

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Last minute flights from Knoxville to San Francisco

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Knoxville to San Francisco that are departing in the next 10 days.
6/6Thu
multi-stopDelta
8h 12mTYS-SFO
6/11Tue
multi-stopDelta
7h 05mSFO-TYS
$498
6/6Thu
multi-stopDelta
10h 18mTYS-SFO
6/11Tue
multi-stopDelta
7h 05mSFO-TYS
$513
6/6Thu
multi-stopAmerican Airlines
8h 01mTYS-SFO
6/11Tue
multi-stopAmerican Airlines
8h 52mSFO-TYS
$537
6/6Thu
multi-stopUnited Airlines
8h 48mTYS-SFO
6/10Mon
multi-stopUnited Airlines
9h 56mSFO-TYS
$598
6/6Thu
multi-stopUnited Airlines
10h 11mTYS-SFO
6/11Tue
multi-stopUnited Airlines
14h 28mSFO-TYS
$603
6/6Thu
multi-stopUnited Airlines
8h 48mTYS-SFO
6/10Mon
multi-stopUnited Airlines
9h 56mSFO-TYS
$638
6/6Thu
multi-stopDelta
8h 12mTYS-SFO
6/11Tue
multi-stopDelta
12h 09mSFO-TYS
$783
6/6Thu
multi-stopAmerican Airlines
10h 44mTYS-SFO
6/11Tue
multi-stopAmerican Airlines
10h 00mSFO-TYS
$902
6/6Thu
multi-stopAmerican Airlines
10h 44mTYS-SFO
6/11Tue
multi-stopAmerican Airlines
9h 14mSFO-TYS
$903
6/6Thu
multi-stopDelta
8h 30mTYS-SFO
6/10Mon
multi-stopDelta
11h 44mSFO-TYS
$2,227

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Knoxville - San Francisco Flights

Departure:

Knoxville (TYS)United States

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Knoxville

Cabin classes: