San Diego

$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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — SAN
Feb 20 — Feb 271
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Kansas City to San Diego are usually found in September or October, 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 January 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/20. 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 2/218:36 pm
MCI
-
SAN
1 stop13h 48m
Frontier
Sat 2/286:25 am
SAN
-
MCI
1 stop11h 21m
Frontier
Deal found 1/20$123
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 2/288:41 pm
MCI
-
SAN
1 stop13h 43m
Frontier
Sat 3/76:25 am
SAN
-
MCI
1 stop11h 30m
Frontier
Deal found 1/20$126
This Frontier deal was found by Cheapflights users on 1/20. 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.
Sat 2/288:41 pm
MCI
-
SAN
1 stop5h 27m
Frontier
Wed 3/48:45 am
SAN
-
MCI
1 stop4h 59m
Frontier
Deal found 1/20$128
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 2/269:24 pm
MCI
-
SAN
1 stop28h 44m
Frontier
Sat 3/76:25 am
SAN
-
MCI
1 stop11h 30m
Frontier
Deal found 1/20$130
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 2/269:24 pm
MCI
-
SAN
1 stop28h 44m
Frontier
Sun 3/89:18 pm
SAN
-
MCI
1 stop20h 37m
Frontier
Deal found 1/20$136
This Kiwi.com deal was found by Cheapflights users on 1/21. 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 2/224:49 pm
MCI
-
SAN
1 stop25h 15m
Frontier
Wed 2/257:11 am
SAN
-
MCI
1 stop6h 33m
Frontier
Deal found 1/21$139
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 3/44:39 pm
MCI
-
SAN
1 stop20h 35m
Frontier
Sat 3/76:25 am
SAN
-
MCI
1 stop11h 30m
Frontier
Deal found 1/20$141
This Kiwi.com deal was found by Cheapflights users on 1/19. 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 2/184:39 pm
MCI
-
SAN
1 stop7h 02m
Frontier
Sat 2/286:25 am
SAN
-
MCI
1 stop11h 21m
Frontier
Deal found 1/19$148
This Frontier deal was found by Cheapflights users on 1/21. 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 2/269:24 pm
MCI
-
SAN
1 stop12h 16m
Frontier
Wed 3/48:45 am
SAN
-
MCI
1 stop4h 59m
Frontier
Deal found 1/21$154
This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
Mon 3/28:33 pm
MCI
-
SAN
2 stops25h 51m
Frontier
Sat 3/76:25 am
SAN
-
MCI
1 stop11h 30m
Frontier
Deal found 1/20$162

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 January 21, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$123
(Kiwi.com)

One-way from

$64
(Frontier)

Popular in

December

Cheapest in

September

Average price

$316
Provider with most accurate pricing for Kansas City-San Diego flight deals.
Provider most trusted by Cheapflights users for Kansas City-San Diego flights.
From Kansas City to San Diego
One-way flight from Kansas City to San Diego
Highest demand for flights based on searches. 6% potential increase in price ($24 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in January 2026

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 January 21, 2026.
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

Wed 3/4

4:39 pm-9:41 pm

1 stop7h 02m

San Diego

Sat 3/7

6:25 am-7:55 pm

1 stop11h 30m

$167

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Tue 2/24

1:23 pm-8:37 pm

1 stop9h 14m

San Diego

Sat 2/28

1:40 pm-11:50 pm

1 stop8h 10m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sat 2/28

5:54 am-9:24 am

1 stop5h 30m

San Diego

Sat 3/7

4:12 pm-11:15 pm

1 stop5h 03m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Tue 2/24

2:30 pm-6:04 pm

1 stop5h 34m

San Diego

Wed 3/4

6:30 am-6:39 pm

1 stop10h 09m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Tue 3/3

1:23 pm-8:37 pm

1 stop9h 14m

San Diego

Sun 3/8

6:20 am-2:54 pm

1 stop6h 34m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Tue 3/3

6:30 am-12:13 pm

1 stop7h 43m

San Diego

Thu 3/5

6:20 am-2:51 pm

1 stop6h 31m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 4/15

7:00 am-1:05 pm

1 stop8h 05m

San Diego

Mon 4/20

5:00 pm-12:38 am

1 stop5h 38m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 2/11

2:12 pm-10:31 pm

1 stop10h 19m

San Diego

Mon 2/16

10:10 pm-9:54 am

1 stop9h 44m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 4/8

7:55 am-2:44 pm

1 stop8h 49m

San Diego

Mon 4/13

10:30 pm-9:42 am

1 stop9h 12m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Tue 3/3

1:23 pm-8:37 pm

1 stop9h 14m

San Diego

Mon 3/9

3:45 pm-11:56 pm

1 stop6h 11m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 19 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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy3 starsTrust 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 January 16, 2026.

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, August is the cheapest month in which you can book a flight from Kansas City to San Diego (average of $88). Flying from Kansas City to San Diego in January is currently the most expensive (average of $197). 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 January 21, 2026.

When flying from Kansas City to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 January 21, 2026.
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.

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Comfort

8.0

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.

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Comfort

8.0

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.

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Comfort

8.0

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.

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Comfort

8.0

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.

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Comfort

8.0

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.

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Comfort

8.0

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.
  • What airports do I use to fly from Kansas City to San Diego?

    You will need to book a flight from Kansas City to San Diego if you want to fly from Kansas City to San Diego. At least 7 different airlines have flights from Kansas City (MCI) to San Diego (SAN) on a regular basis. There is 1 flight to San Diego from the Kansas City airport per day. If you manage to book one that is nonstop, then you can expect the flight time from MCI to SAN to be around 3h 15m.

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

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

    A quick flight from Kansas City to San Diego can take about 7h 02m. Frontier provides one of the quickest options available for as low as $167. 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 $100, Spirit Airlines will fly you from Kansas City to San Diego and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Alaska Airlines - these airlines can fly you to your destination from $110 and $124, respectively. Users have found that Spirit Airlines is 68% 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 $531, our data shows the cheapest flight currently is $231. When looking at the most popular route, (Kansas City - San Diego), you can expect to pay $179 for that flight.

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

  • 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 $48.

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

  • 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, August is the cheapest month in which you can book a flight from Kansas City to San Diego (average of $88). Flying from Kansas City to San Diego in January is currently the most expensive (average of $197). 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
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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Alternative routes for Kansas City to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$100Average$203FlexibilityNo cancel feeOn-time65%
FrontierCheapest$110Average$189FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$124Average$341FlexibilityNo cancel feeOn-time75%
DeltaCheapest$164Average$268FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$284FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$241Average$328FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$268Average$447FlexibilityNo cancel feeOn-time63%

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