---
title: "$19 Cheap Flights to Knights Valley, CA - Expedia"
description: "Looking for cheap flights to Knights Valley? Many airlines offer no change fee on selected flights and book now to earn your airline miles on top of our rewards! Find great 2026 Knights Valley flight deals now!"
canonical: "https://www.expedia.com/Cheap-Flights-To-Knights-Valley.d736344423504044032.Travel-Guide-Flights"
language: en-US
market: US
currency: USD
prices_as_of: 2026-11-15T03:15:00Z
---

# $19 Cheap Flights to Knights Valley, CA

[View $19 flight on Wed, Dec 16, 2026](https://www.expedia.com/Flights-Search?leg1=from:ONT,to:SFO,departure:12/16/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:18.98&airProductToken=AQoxCi8IxnISBDExNTkYrpsBILJxKO7%5FnwMwzYCgAzhFQABYAWoEUENfMXIHSzIxWFhTMxIKCAEQARgBKgJGORgBIgQIARABKAIoAygEMA0)

## Popular airlines

Alaska Airlines

American Airlines

Delta

United

Frontier Airlines

Southwest Airlines

JetBlue Airways

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## Expedia's flights to Knights Valley

Prices were available within the past 7 days and start at $19 for one-way flights and $38 for roundtrip, for the period specified. Prices and availability are subject to change.

All deals

One way

Roundtrip

[Select Frontier Airlines flight, departing Sun, Dec 6 from Columbus to San Francisco, returning Thu, Dec 10, priced at $255 Found 2 days ago](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:SFO,departure:12/6/2026TANYT&leg2=from:SFO,to:CMH,departure:12/10/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:254.96&airProductToken=AQpgCi4IxnISBDE2OTMYgjsgg2ko4Y2fAzCqj58DOEVAAFgBagRQQ18xcgdaMjFQWFAyCi4IxnISBDEyMjkYg2kgsnEoz5SfAzCDlp8DOEVAAVgBagRQQ18xcgdaMjFQWFAyCmAKLgjGchIEMTIzMBiycSCDaSimtp8DMMa3nwM4RUAAWAFqBFBDXzFyB1oyMVZYUDIKLgjGchIEMTY5NBiDaSCCOyiEuZ8DMLS6nwM4RUABWAFqBFBDXzFyB1oyMVZYUDISCggBEAEYASoCRjkYASIECAEQASgCKAMoBDAN)

Sun, Dec 6 - Thu, Dec 10 · CMH · SFO · Roundtrip

[Select Frontier Airlines flight, departing Sun, Jan 17 from Columbus to San Francisco, returning Thu, Jan 21, priced at $266 Found 2 days ago](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:SFO,departure:1/17/2027TANYT&leg2=from:SFO,to:CMH,departure:1/21/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:265.96&airProductToken=AQpgCi4IxnISBDE2OTMYgjsgg2ko--SiAzDL5qIDOEVAAFgBagRQQ18xcgdSMDBQWFAyCi4IxnISBDM0MzkYg2kgsnEo9uiiAzCi6qIDOEVAAVgBagRQQ18xcgdSMDBQWFAyCmAKLgjGchIEMTIzMBiycSCDaSjIjqMDMOqPowM4RUAAWAFqBFBDXzFyB1oyMVZYUDIKLgjGchIEMTY5NBiDaSCCOyilkKMDMM6RowM4RUABWAFqBFBDXzFyB1oyMVZYUDISCggBEAEYASoCRjkYASIECAEQASgCKAMoBDAN)

Sun, Jan 17 - Thu, Jan 21 · CMH · SFO · Roundtrip

[Select Frontier Airlines flight, departing Tue, Dec 22 from Columbus to San Francisco, returning Wed, Jan 6, priced at $272 Found 3 days ago](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:SFO,departure:12/22/2026TANYT&leg2=from:SFO,to:CMH,departure:1/6/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:271.18&airProductToken=AQpgCi4IxnISBDE2OTMYgjsgg2kozcCgAzCVwqADOEVAAFgBagRQQ18xcgdaMjFPWFAyCi4IxnISBDEwOTMYg2kgsnEoxsKgAzD2w6ADOEVAAVgBagRQQ18xcgdaMjFPWFAyEgoIARABGAEqAkY5GAEiBAgBEAEoAigDKAQwDQ)

Tue, Dec 22 - Wed, Jan 6 · CMH · SFO · Roundtrip

[Select Frontier Airlines flight, departing Sun, Jan 31 from Columbus to San Francisco, returning Thu, Feb 4, priced at $276 Found 3 days ago](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:SFO,departure:1/31/2027TANYT&leg2=from:SFO,to:CMH,departure:2/4/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:275.98&airProductToken=AQpeCi0IxnISBDE2OTMYgjsgg2kozYKkAzCVhKQDOFJAAFgBagNFQ09yB1IwMFBYUDIKLQjGchIEMzQzORiDaSCycSi2hqQDMOOHpAM4UkABWAFqA0VDT3IHUjAwUFhQMgpeCi0IxnISBDEyMzAYsnEgg2kol6ykAzC3raQDOFpAAFgBagNFQ09yB1oyMVZYUDIKLQjGchIEMTY5NBiDaSCCOyjlraQDMJavpAM4WkABWAFqA0VDT3IHWjIxVlhQMhIKCAEQARgBKgJGORgBIgQIARABKAIoAygEMAE)

Sun, Jan 31 - Thu, Feb 4 · CMH · SFO · Roundtrip

[Select Frontier Airlines flight, departing Sun, Jan 31 from Columbus to San Francisco, returning Thu, Feb 4, priced at $277 Found 3 days ago](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:SFO,departure:1/31/2027TANYT&leg2=from:SFO,to:CMH,departure:2/4/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:276.60&airProductToken=AQpgCi4IxnISBDE2OTMYgjsgg2koxYKkAzCVhKQDOEVAAFgBagRQQ18xcgdSMDBQWFAyCi4IxnISBDEyMjkYg2kgsnEohoukAzC8jKQDOEVAAVgBagRQQ18xcgdSMDBQWFAyCmAKLgjGchIEMTIzMBiycSCDaSiIrKQDMKqtpAM4RUAAWAFqBFBDXzFyB1oyMVZYUDIKLgjGchIEMTY5NBiDaSCCOyjlraQDMI6vpAM4RUABWAFqBFBDXzFyB1oyMVZYUDISCggBEAEYASoCRjkYASIECAEQASgCKAMoBDAN)

Sun, Jan 31 - Thu, Feb 4 · CMH · SFO · Roundtrip

[Select Frontier Airlines flight, departing Sun, Dec 6 from Columbus to San Diego, returning Wed, Dec 9, priced at $284 Found 1 hour ago](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:SAN,departure:12/6/2026TANYT&leg2=from:SAN,to:CMH,departure:12/9/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:283.98&airProductToken=AQpCCh8IxnISBDE2OTMYgjsgg2ko4Y2fAzCqj58DOFJAAFgBCh8IxnISBDI3MTEYg2kgkmgoqZCfAzC-kZ8DOFJAAVgBCkIKHwjGchIEMjQyMhiSaCCDaSiirZ8DMMSunwM4UkAAWAEKHwjGchIEMTY5NBiDaSCCOyiEuZ8DMLS6nwM4UkABWAESCggBEAEYASoCRjkYASIECAEQASgEMAE)

Sun, Dec 6 - Wed, Dec 9 · CMH · Roundtrip

[Select Alaska Airlines flight, departing Sun, Jan 31 from Columbus to San Francisco, returning Thu, Feb 4, priced at $305 Found 3 days ago](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:SFO,departure:1/31/2027TANYT&leg2=from:SFO,to:CMH,departure:2/4/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:304.18&airProductToken=AQpkCjAIwaYBEgM0NzAYgjsgkgEo1v6jAzCagaQDOFhAAFgBagVTQVZFUnIIR0gyT0FKQk4KMAjBpgESAzY1NRiSASCycSjNgaQDMNGCpAM4WEABWAFqBVNBVkVScghHSDJPQUpCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMA0)

\- Thu, Feb 4 · CMH · SFO · Roundtrip

[Select American Airlines flight, departing Mon, Dec 7 from Columbus to San Francisco, returning Thu, Dec 10, priced at $310 Found 3 days ago](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:SFO,departure:12/7/2026TANYT&leg2=from:SFO,to:CMH,departure:12/10/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:309.18&airProductToken=AQpoCjIIwYIBEgQyNTM5GII7IIu4ASiMmZ8DMMObnwM4QkAAWAFqBUJBU0lDcghTMEFaWk5CWAoyCMGCARIEMzE3NhiLuAEgsnEo6JufAzDFnJ8DOEJAAVgBagVCQVNJQ3IIUzBBWlpOQlgSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL)

Mon, Dec 7 - Thu, Dec 10 · CMH · SFO · Roundtrip

[Select JetBlue Airways flight, departing Mon, Jan 25 from Columbus to Los Angeles, returning Wed, Feb 3, priced at $361 Just found](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:LAX,departure:1/25/2027TANYT&leg2=from:LAX,to:CMH,departure:2/3/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:360.40&airProductToken=AQpeCi0IwmwSBDE1MDcYgjsg5VoolLqjAzC-u6MDOExAAFgBagJETnIIUEMwUVJFWTEKLQjCbBIDMjAxGOVaIIu4ASj3vKMDMOC%5FowM4TEABWAFqAkROcghQQzBRUkVZMQpeCi0IwmwSAzMwMBiLuAEg5VoopKGkAzDGo6QDOExAAFgBagJETnIIUEMwUVJFWTEKLQjCbBIEMTUwOBjlWiCCOyi%5FpaQDMO2mpAM4TEABWAFqAkROcghQQzBRUkVZMRIKCAEQARgBKgJCNhgBIgQIARABKAIoAygEMAE)

Mon, Jan 25 - Wed, Feb 3 · CMH · LAX · Roundtrip

[Select Bargain Flight flight, departing Tue, Dec 8 from Columbus to San Diego, returning Wed, Dec 9, priced at $371 Found 4 days ago](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:SAN,departure:12/8/2026TANYT&leg2=from:SAN,to:CMH,departure:12/9/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:370.93&airProductToken=AQpeCi0IwaYBEgM0NzAYgjsgkgEolp-fAzDeoZ8DOFhAAFgBagJTVnIIR0gyT0FKQk4KLQjBpgESAzYyMRiSASCSaCjCop8DMO6jnwM4WEABWAFqAlNWcghHSDJPQUpCTgpeCi0IwaYBEgM3OTIYkmggkgEos6ufAzDzrJ8DOFhAAFgBagJTVnIIR0gyT0FKQk4KLQjBpgESAzQ3MRiSASCCOyiirp8DMKSwnwM4WEABWAFqAlNWcghHSDJPQUpCThIKCAkQAhgCKgJBUxgBIgQIARABKAcoAzAB)

Tue, Dec 8 - Wed, Dec 9 · CMH · Roundtrip

## Alternative airports

Prices were available within the past 7 days. Prices and availability are subject to change.

[Select flight to Sonoma County STS. Cheapest option available. Flights from $1,829](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:STS,departure:11/29/2026TANYT&leg2=from:STS,to:CMH,departure:12/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE)

## Frequently Asked Questions

### What month is the cheapest to fly to Knights Valley?

The cheapest month to fly to Knights Valley is December when demand is low. Off-peak months are usually when you'll find cheap fares. To keep costs down, avoid flying during major holidays and school breaks.

### Which US cities fly direct to Knights Valley?

To fly to Knights Valley directly, simply check the "Direct flights only" box when you search for journeys on Expedia and we'll show you all the available options to compare.

### How to find a cheap flight to Knights Valley?

Jetting off in the low season and booking early are two smart ways to secure cheap flights to Knights Valley. Or, consider departing on a Thursday, which, on average, is 16% cheaper than departing on a Sunday.\* Want to be the first to know when fares drop? Simply set up price tracking on the [Expedia app](https://www.expedia.com/app) for real-time updates.

*\*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.*

### How to get a cheap last-minute flight to Knights Valley?

It's possible to get great deals on last-minute departures to Knights Valley, especially if your travel plans are flexible. Consider flying from a different airport, changing your dates or picking an alternative airline to get a cheap flight to Knights Valley.

### How far in advance should I book a flight to Knights Valley?

Secure your flight to Knights Valley two to four months ahead if you're coming in from an international destination. For domestic travel, the timeframe is around 28 days in advance. Better deals and a greater choice of travel dates, schedules and seating options are just some of the awesome benefits of booking early.\*

*\*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.*

### Which day of the week is the cheapest day to buy a plane ticket to Knights Valley?

You can generally find cheap flights to Knights Valley on a Sunday. You'll save around 8% on average compared to booking on a Friday, which is typically the most expensive day for tickets.\*

*\*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.*

### Where do you fly into Knights Valley?

When flying to Knights Valley, the main airport for arrivals is Sonoma County Airport (STS). You can also jet into nearby hubs like Novato, CA (NOT-Gnoss Field), Napa, CA (APC-Napa Valley) or Ukiah, CA (UKI-Ukiah Regional). Another possibility worth considering when you fly to Knights Valley is Vacaville, CA (VCB-Nut Tree).

### Can I save money by booking a Knights Valley trip package?

Book a [Knights Valley flight and hotel package deal](https://www.expedia.com/Knights-Valley.d736344423504044032.Destination-Travel-Guides) on Expedia, and you could make significant savings. It's simple to bundle your flights and accommodations, and you can add tours and car rentals to create your own customized Knights Valley getaway. Plus, nothing beats the convenience of booking everything in the same place.

### Can I change or cancel my flight to Knights Valley?

You can often change or cancel your flight to Knights Valley within 24 hours of booking. However, keep in mind that some flights are non-refundable. In those cases, you may be issued credit for future travel instead of a direct refund. Be sure to check the airline's terms of service in your itinerary for exact details. You can use Expedia's "Changes included" or "No cancel fee" filters during your search to find cheap flights to Knights Valley with flexible change policies. For more information, browse our [Customer Service Portal](https://www.expedia.com/service/?langid=1033).

## Travel information

| Airlines serving | American Airlines, Alaska Airlines, Delta, United, Frontier Airlines, Southwest Airlines, JetBlue Airways, Air Canada, WestJet, British Airways, Lufthansa, KLM, Turkish Airlines, Swiss International Air Lines, Singapore Airlines, Air France, Aeromexico, Japan Airlines, Cathay Pacific, SAS, Iberia, Brussels Airlines, All Nippon Airways, Avianca, Volaris, Sun Country Airlines, Philippine Airlines, Finnair, Austrian Airlines, Korean Air, China Airlines, PD, EVA Airways, Virgin Atlantic, Aer Lingus, ITA Airways |
| ---------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Popular airline  | American Airlines                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| Roundtrip price  | $255                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |

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## Trending flights to Knights Valley

Prices were available within the past 7 days and start at $19 for one-way flights and $38 for roundtrip, for the period specified. Prices and availability are subject to change.

All deals

One way

Roundtrip

[Select Frontier Airlines flight, departing Tue, Dec 15 from Ontario to San Francisco, returning Tue, Dec 15, priced at $38 Just found](https://www.expedia.com/Flights-Search?leg1=from:ONT,to:SFO,departure:12/15/2026TANYT&leg2=from:SFO,to:ONT,departure:12/15/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:37.96&airProductToken=AQoxCi8IxnISBDExNTkYrpsBILJxKM70nwMwrfWfAzhFQABYAWoEUENfMXIHSzIxRVhTMwoxCi8IxnISBDExNjAYsnEgrpsBKOT1nwMwu%5FafAzhFQABYAWoEUENfMXIHSzIxRVhTMxIKCAEQARgBKgJGORgBIgQIARABKAIoAygEMA0)

Tue, Dec 15 - Tue, Dec 15 · ONT · SFO · Roundtrip

\*Available to One Key members.

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