How long does it take to fly to San Francisco?

Flight times from Kentucky to San Francisco vary, but if you’re flying out of Louisville and flying into San Francisco (one of the most popular routes), then the duration is 5h 02m on average. Another popular route from Kentucky to San Francisco is flying from Lexington to San Francisco, which will take roughly 7h 35m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to San Francisco?

American Airlines, Delta and Breeze Airways are the top three most popular airlines that fly to San Francisco from Kentucky according to our data. American Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 5 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Kentucky to San Francisco?

Frontier, United Airlines, and Southwest are the most popular carriers operating from Kentucky to San Francisco

How many flights depart from Kentucky to San Francisco on average per week?

The number of flights available between Kentucky and San Francisco is 40 per week as of February 2026. The most frequent departure day is Thu, with 25% of weekly flights leaving on this day.

When did momondo last update prices for flights from Kentucky to San Francisco Airport?

Prices for flights from Kentucky to San Francisco Airport refresh daily.

How many operators does momondo search for flights from Kentucky to San Francisco Airport?

There are 7 operators available for flights from Kentucky to San Francisco Airport as of February 2026.

How old do you have to be to fly from Kentucky to San Francisco Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kentucky to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$78 Cheap Flights from Kentucky to San Francisco in 2026

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Find the cheapest flights from Kentucky to San Francisco

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:51 pm - 12:28 am

TYS

SFO

8h 37m

1 stop

6:15 am - 7:18 pm

SFO

TYS

10h 03m

1 stop

$200Frontier

Fri, Feb 27 - Mon, Mar 2

4:20 pm - 12:23 am

TYS

SFO

11h 03m

1 stop

9:00 pm - 3:28 pm

SFO

TYS

15h 28m

1 stop

$211Frontier

Fri, Apr 10 - Sun, Apr 12

8:41 pm - 7:58 am

BNA

SFO

13h 17m

1 stop

6:29 pm - 5:10 am

SFO

BNA

8h 41m

1 stop

$232Multiple Airlines

Thu, Mar 19 - Tue, Apr 7

8:45 pm - 2:23 pm

BNA

SFO

19h 38m

2 stops

7:15 pm - 5:08 am

SFO

BNA

7h 53m

1 stop

$233Multiple Airlines

Sun, Mar 1 - Wed, Mar 4

4:15 pm - 11:19 pm

CVG

SFO

10h 04m

1 stop

6:00 am - 7:04 pm

SFO

CVG

10h 04m

1 stop

$287Delta

Tue, Mar 17 - Wed, Mar 18

6:24 am - 11:04 am

TRI

SFO

7h 40m

1 stop

5:15 am - 3:46 pm

SFO

TRI

7h 31m

1 stop

$309American Airlines

Sat, Aug 8 - Sat, Aug 15

6:16 pm - 12:08 am

TRI

SFO

8h 52m

2 stops

5:45 am - 3:56 pm

SFO

TRI

7h 11m

1 stop

$314American Airlines

Sat, Aug 8 - Sat, Aug 15

3:53 pm - 8:33 pm

TRI

SFO

7h 40m

1 stop

11:35 pm - 9:50 am

SFO

TRI

7h 15m

1 stop

$319Delta

Tue, Mar 10 - Mon, Mar 16

9:31 am - 11:33 am

SDF

SFO

5h 02mnonstop

12:18 pm - 7:48 pm

SFO

SDF

4h 30mnonstop

$327Breeze Airways

Mon, May 25 - Fri, May 29

9:31 am - 11:33 am

SDF

SFO

5h 02mnonstop

12:18 pm - 7:48 pm

SFO

SDF

4h 30mnonstop

$328Breeze Airways

Fri, Jun 12 - Fri, Jun 19

Delta flights from Kentucky to San Francisco

Our best Delta deals on Kentucky to San Francisco flight tickets

Delta

Mar 17

CVG6:30 amCincinnati Cinci./N. Kentucky

10h 35m

1 stop

SFO2:05 pmSan Francisco

Mar 17

SFO6:28 pmSan Francisco

7h 35m

1 stop

CVG5:03 amCincinnati Cinci./N. Kentucky

$287

Delta

Apr 28

CVG1:36 pmCincinnati Cinci./N. Kentucky

8h 33m

1 stop

SFO7:09 pmSan Francisco

May 2

SFO5:40 amSan Francisco

6h 08m

1 stop

CVG2:48 pmCincinnati Cinci./N. Kentucky

$317

Delta

Mar 10

TRI3:53 pmBlountville Tri Cities TN/VA

7h 40m

1 stop

SFO8:33 pmSan Francisco

Mar 16

SFO11:35 pmSan Francisco

7h 15m

1 stop

TRI9:50 amBlountville Tri Cities TN/VA

$319

United Airlines flights from Kentucky to San Francisco

Our best United Airlines deals on Kentucky to San Francisco flight tickets

United Airlines

May 6

LEX7:00 amLexington Blue Grass

7h 24m

1 stop

SFO11:24 amSan Francisco

May 10

SFO5:30 amSan Francisco

8h 34m

1 stop

LEX5:04 pmLexington Blue Grass

$340

United Airlines

Apr 21

SDF5:00 amLouisville Intl

7h 16m

1 stop

SFO9:16 amSan Francisco

May 2

SFO10:35 pmSan Francisco

4h 41m

SDF6:16 amLouisville Intl

$353

United Airlines

Mar 17

SDF2:35 pmLouisville Intl

9h 45m

1 stop

SFO9:20 pmSan Francisco

Mar 18

SFO5:05 amSan Francisco

6h 14m

1 stop

SDF2:19 pmLouisville Intl

$354

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleSan Francisco

TYS - SFO

TYSSFO

Knoxville McGhee Tyson

Fri 2/27

6:51 pm-12:28 am

1 stop8h 37m

San Francisco

Mon 3/2

6:15 am-7:18 pm

1 stop10h 03m

$200

KnoxvilleSan Francisco

TYS - SFO

TYSSFO

Knoxville McGhee Tyson

Fri 4/10

4:20 pm-12:23 am

1 stop11h 03m

San Francisco

Sun 4/12

9:00 pm-3:28 pm

1 stop15h 28m

$211

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Thu 3/19

8:41 pm-7:58 am

1 stop13h 17m

San Francisco

Tue 4/7

6:29 pm-5:10 am

1 stop8h 41m

$232

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Sun 3/1

8:45 pm-2:23 pm

2 stops19h 38m

San Francisco

Wed 3/4

7:15 pm-5:08 am

1 stop7h 53m

$233

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

Tue 3/17

4:15 pm-11:19 pm

1 stop10h 04m

San Francisco

Wed 3/18

6:00 am-7:04 pm

1 stop10h 04m

$287

BlountvilleSan Francisco

TRI - SFO

TRISFO

Blountville Tri Cities TN/VA

Sat 8/8

6:24 am-11:04 am

1 stop7h 40m

San Francisco

Sat 8/15

5:15 am-3:46 pm

1 stop7h 31m

$309

BlountvilleSan Francisco

TRI - SFO

TRISFO

Blountville Tri Cities TN/VA

Sat 8/8

6:16 pm-12:08 am

2 stops8h 52m

San Francisco

Sat 8/15

5:45 am-3:56 pm

1 stop7h 11m

$314

BlountvilleSan Francisco

TRI - SFO

TRISFO

Blountville Tri Cities TN/VA

Tue 3/10

3:53 pm-8:33 pm

1 stop7h 40m

San Francisco

Mon 3/16

11:35 pm-9:50 am

1 stop7h 15m

$319

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Mon 5/25

9:31 am-11:33 am

Nonstop5h 02m

San Francisco

Fri 5/29

12:18 pm-7:48 pm

Nonstop4h 30m

$327

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Fri 6/12

9:31 am-11:33 am

Nonstop5h 02m

San Francisco

Fri 6/19

12:18 pm-7:48 pm

Nonstop4h 30m

$328

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Kentucky to San Francisco

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

Prices

Airlines

Other information

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of September, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $287.

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

The cheapest day to depart from Kentucky to San Francisco is on a Wednesday when prices can be found for as low as $258. The most expensive day to fly to San Francisco is Thursday, with ticket prices averaging around $312.

What is the cheapest Kentucky to San Francisco flight route?

Fly from Louisville Intl to San Francisco for the best Kentucky - San Francisco flight prices

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

You are more likely to see cheaper flights to San Francisco from Kentucky when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $381 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Kentucky for as low as $246 on momondo.

What cabin class options are available on Kentucky to San Francisco flights?

There is only 1 cabin class available to choose from on Kentucky to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Kentucky to San Francisco flights?

No. A direct flight is the cheapest option for a flight between Kentucky to San Francisco.

Cheap Kentucky to San Francisco flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kentucky to San Francisco

Best Price Found	$288
Fastest flight time	4h 40m
Direct flights	Every day
Airports in San Francisco	1 airport

The best flight deal from Kentucky to San Francisco found on momondo in the last 72 hours is $288

The fastest flight from Kentucky to San Francisco takes 4h 40m

Direct flights go from Kentucky to San Francisco every day.

There is 1 airport in San Francisco. From Kentucky there are direct flights to San Francisco (SFO).

Search flight deals

When did momondo last update prices for flights from Kentucky to San Francisco Airport?
Prices for flights from Kentucky to San Francisco Airport refresh daily.
How many operators does momondo search for flights from Kentucky to San Francisco Airport?
There are 7 operators available for flights from Kentucky to San Francisco Airport as of February 2026.
How old do you have to be to fly from Kentucky to San Francisco Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kentucky to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Kentucky to San Francisco?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Kentucky to San Francisco is Airbus A220-300 (94.34% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (1.89%), Boeing 737 MAX 9 (1.89%), and Airbus A320-100/200 (1.89%).

Best airlines flying from Kentucky to San Francisco

Compare and see reviews for airlines that fly from Kentucky to San Francisco with momondo

Airline	Rating	Free Cancellation	Price
Breeze Airways	PriceFrom $138	Free Cancellation	Rating 8.1 268 reviews	Search Breeze Airways flights
Delta	PriceFrom $142	Free Cancellation	Rating 7.9 8,182 reviews	Search Delta flights
Southwest	PriceFrom $254	Free Cancellation	Rating 8.0 4,283 reviews	Search Southwest flights
American Airlines	PriceFrom $262	Free Cancellation	Rating 7.2 11,272 reviews	Search American Airlines flights
United Airlines	PriceFrom $283	Free Cancellation	Rating 7.4 9,283 reviews	Search United Airlines flights

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Carmel-by-the-Sea

Modesto

Sonoma

Bodega Bay

Roseville

Hayward

Walnut Creek

Santa Clara

Calistoga

Berkeley

Big Sur

Fremont

Daly City

Half Moon Bay

Salinas

Vallejo

Sunnyvale

Milpitas

Turlock

Why use momondo?

Why should I use momondo to find a flight deal from Kentucky to San Francisco?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Kentucky.

Can I find flights from Kentucky to San Francisco with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Francisco from Kentucky which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Kentucky to San Francisco?

momondo provides multiple filters to help you find the best flight to San Francisco from Kentucky. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Kentucky to San Francisco 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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Cheap flights from Kentucky to San Francisco from $78

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kentucky to San Francisco departing on 4/27. 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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Delta flights from Kentucky to San Francisco

Our best Delta deals on Kentucky to San Francisco flight tickets

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Our best United Airlines deals on Kentucky to San Francisco flight tickets

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How to get the cheapest flight ticket from Kentucky to San Francisco

What is the cheapest month to fly to San Francisco?

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

What is the cheapest Kentucky to San Francisco flight route?

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

What cabin class options are available on Kentucky to San Francisco flights?

Can stopping save me money on Kentucky to San Francisco flights?

What is the cheapest airline that flies from Kentucky to San Francisco?

What airlines fly to San Francisco?

How many flights depart from Kentucky to San Francisco on average per week?

How long does it take to fly to San Francisco?

Cheap Kentucky to San Francisco flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kentucky to San Francisco

Best Price Found

Fastest flight time

Direct flights

Airports in San Francisco

Best airlines flying from Kentucky to San Francisco

Compare and see reviews for airlines that fly from Kentucky to San Francisco with momondo

Traveling to a place near San Francisco?

Why use momondo?

Why should I use momondo to find a flight deal from Kentucky to San Francisco?

Can I find flights from Kentucky to San Francisco with flexible booking policies on momondo?

How can momondo help me find flights from Kentucky to San Francisco?

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

An easier way to manage your San Francisco trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California

Fly your favorite airline to San Francisco

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to San Francisco

List of cabin classes available on flights landing in San Francisco. Availability may vary depending on flight origin and airline.

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