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$64+ Cheap flights from Kansas City to San Diego (MCI - SAN)

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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — SAN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Find cheap flights from Kansas City to San Diego with Cheapflights

1. Tell us where you want to go

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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3. Compare prices and book

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Cheapflights Tip: The best prices from Kansas City to San Diego are usually found in January or September, booked 53 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Kansas City to San Diego

Cheapest flights from Kansas City to San Diego
Explore the most affordable flight options available from Kansas City to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/11. 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 12/2511:53 amMCI - SAN
1 stop27h 22mMultiple Airlines
Tue 1/69:44 amSAN - MCI
1 stop27h 08mMultiple Airlines
Deal found 12/11$233
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/2511:53 amMCI - SAN
1 stop27h 22mFrontier
Wed 12/3110:57 amSAN - MCI
1 stop22h 01mFrontier
Deal found 12/9$244
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 12/248:45 pmMCI - SAN
2 stops15h 12mMultiple Airlines
Tue 1/69:44 amSAN - MCI
1 stop27h 08mMultiple Airlines
Deal found 12/11$251
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/2511:53 amMCI - SAN
1 stop27h 22mFrontier
Tue 12/309:14 pmSAN - MCI
2 stops20h 36mFrontier
Deal found 12/9$259
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Sun 12/214:32 pmMCI - SAN
1 stop22h 43mMultiple Airlines
Tue 1/69:44 amSAN - MCI
1 stop27h 08mMultiple Airlines
Deal found 12/11$272
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/2511:53 amMCI - SAN
1 stop27h 22mFrontier
Mon 12/292:10 pmSAN - MCI
2 stops27h 40mFrontier
Deal found 12/9$276
This Frontier deal was found by Cheapflights users on 12/11. 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.
Mon 12/228:45 pmMCI - SAN
1 stop5h 14mFrontier
Mon 1/56:25 amSAN - MCI
1 stop11h 25mFrontier
Deal found 12/11$284
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 12/2511:53 amMCI - SAN
1 stop27h 22mMultiple Airlines
Mon 1/57:21 pmSAN - MCI
1 stop17h 31mMultiple Airlines
Deal found 12/11$286
This Frontier deal was found by Cheapflights users on 12/11. 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.
Mon 12/228:45 pmMCI - SAN
1 stop5h 14mFrontier
Fri 1/26:25 amSAN - MCI
1 stop11h 25mFrontier
Deal found 12/11$288
This Delta deal was found by Cheapflights users on 12/9. 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 12/254:05 pmMCI - SAN
1 stop7h 33mDelta
Tue 12/309:45 pmSAN - MCI
1 stop10h 07mDelta
Deal found 12/9$293

Find flight deals from Kansas City to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Kansas City (MCI) to San Diego (SAN). 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$128
(Expedia)

One-way from

$64
(Frontier)

Popular in

March

Cheapest in

January

Average price

$358
Provider with most accurate pricing for Kansas City-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kansas City-San Diego flights.
Search Deals
From Kansas City to San Diego
Search Deals
One-way flight from Kansas City to San Diego
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kansas City to San Diego 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 December 12, 2025.
Use the filters below to find and compare flights from Kansas City to San Diego that are best for you.

Fly from

Kansas City

Fly to

San Diego

Route

Depart

Return

Price

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sun 1/4

8:45 pm-12:08 pm

2 stops41h 23m

San Diego

Sun 1/11

6:36 am-7:26 pm

1 stop10h 50m

$189

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 1/28

6:05 am-9:15 am

1 stop5h 10m

San Diego

Sun 2/1

8:55 am-3:15 pm

1 stop4h 20m

$264

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Thu 1/29

4:50 pm-9:30 pm

1 stop6h 40m

San Diego

Sun 2/1

8:55 am-3:15 pm

1 stop4h 20m

$264

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 1/7

1:42 pm-5:28 pm

1 stop5h 46m

San Diego

Wed 1/14

6:30 am-4:08 pm

1 stop7h 38m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Tue 1/13

1:55 pm-7:39 pm

1 stop7h 44m

San Diego

Fri 1/16

3:00 pm-11:27 pm

1 stop6h 27m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Tue 3/3

2:49 pm-11:03 pm

1 stop10h 14m

San Diego

Sun 3/8

7:00 am-4:22 pm

1 stop7h 22m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sat 1/17

1:55 pm-10:45 pm

1 stop10h 50m

San Diego

Tue 1/20

6:15 am-1:58 pm

1 stop5h 43m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Thu 2/12

1:23 pm-8:37 pm

1 stop9h 14m

San Diego

Mon 2/16

3:15 pm-11:29 pm

1 stop6h 14m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Mon 3/9

6:00 am-12:44 pm

2 stops8h 44m

San Diego

Fri 3/13

4:12 pm-11:15 pm

1 stop5h 03m

$274

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sun 2/8

8:41 pm-12:08 am

1 stop5h 27m

$64

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 20 results
1
2

Compare providers for flights from Kansas City to San Diego

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 Kansas City to San Diego in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Kansas City-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Kansas City-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Kansas City-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kansas City-San Diego flights, Cheapflights users trust eDreams the most. eDreams 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 Kansas City-San Diego 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 Kansas City to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Kansas City with our price prediction graph.
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 Kansas City to San Diego

How far ahead should I book a flight from Kansas City to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Kansas City to San Diego. Price data was last updated on December 5, 2025.

The best time to book flights from Kansas City to San Diego is 53 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Kansas City to San Diego?

Currently, February is the cheapest month in which you can book a flight from Kansas City to San Diego (average of $75). Flying from Kansas City to San Diego in October is currently the most expensive (average of $189). 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.

What is the cheapest time of day to fly from MCI to SAN?

Find hourly flight availability from Kansas City to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 49% on flights from Kansas City to San Diego by exploring options for tickets in the evening.

What is the cheapest day to fly from Kansas City to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Kansas City to San Diego. Price data was last updated on December 6, 2025.

Travelers seeking maximum savings on their Kansas City to San Diego flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated December 12, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Kansas City to San Diego 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.
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
9,095 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,084 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Kansas City to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Kansas City to San Diego flight route?

    Within the past month, 6 users have taken a look at flights from Kansas City to San Diego.

  • How long is the flight from Kansas City to San Diego?

    A quick flight from Kansas City to San Diego can take about 5h 10m. Frontier provides one of the quickest options available for as low as $264. Airlines will cover a distance of 1330 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Kansas City to San Diego round-trip?

    Currently priced at $77, Frontier will fly you from Kansas City to San Diego and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and Alaska Airlines - these airlines can fly you to your destination from $82 and $124, respectively. Users have found that Frontier is 75% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Kansas City to San Diego one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $55. Users have also found prices from $83 and $112 on Spirit Airlines and JetBlue, respectively.

  • What are the cheapest flights from Kansas City to San Diego?

    While on average a flight from Kansas City to San Diego is generally $442, our data shows the cheapest flight currently is $185. When looking at the most popular route, (Kansas City - San Diego), you can expect to pay $175 for that flight.

  • Where are the most common layover locations when flying from Kansas City to San Diego?

    Of the flights from Kansas City to San Diego that have layovers, most of them stop in Denver.

  • What are some popular things to do or see while on a layover in Denver?

    Coors Field, 16th Street Mall, and Paramount Theatre are the most popular attractions in Denver if you're in need of something to do during your layover. Coors Field, 16th Street Mall, and Paramount Theatre are located about 18.4 mi, 18.7 mi, and 18.6 mi, respectively from Denver Intl. Those on a layover in Denver in need of a rental car can book one at Denver Intl for about $42.

  • Where are the least popular layover locations for Kansas City to San Diego flights?

    Kansas City to San Diego flights have a layover in Phoenix the least frequently.

  • Can I find deals for flights from Kansas City to San Diego that include hotel bookings?

    Yes. In addition to deals on Kansas City to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kansas City to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kansas City to San Diego.

  • Can I find deals for business class flights from Kansas City to San Diego?

    Yes. Cheapflights offers flight deals from Kansas City to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kansas City to San Diego?

    Currently, February is the cheapest month in which you can book a flight from Kansas City to San Diego (average of $75). Flying from Kansas City to San Diego in October is currently the most expensive (average of $189). 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.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
Julian
National City

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Kansas City to San Diego

Discover the top 7 airlines that operate flights from Kansas City to San Diego. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$82Average$203FlexibilityNo cancel feeOn-time65%
FrontierCheapest$110Average$225FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$222Average$274FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$228Average$284FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$241Average$329FlexibilityNo cancel feeOn-time69%
DeltaCheapest$248Average$270FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$266Average$452FlexibilityNo cancel feeOn-time63%

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