San Diego

$78+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — SAN
Apr 9 — Apr 161
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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 62 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 March 10, 2026.

This Trip.com deal was found by Cheapflights users on 3/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/48:43 pm
MCI
-
SAN
1 stop5h 19m
Frontier
Tue 4/76:25 am
SAN
-
MCI
1 stop11h 33m
Frontier
Deal found 3/10$219
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 4/182:51 pm
MCI
-
SAN
1 stop10h 15m
Frontier
Fri 4/2411:01 am
SAN
-
MCI
2 stops25h 05m
Frontier
Deal found 3/10$220
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Mon 3/308:38 pm
MCI
-
SAN
1 stop26h 36m
Frontier
Sat 4/49:28 pm
SAN
-
MCI
1 stop20h 05m
Frontier
Deal found 3/9$222
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
Fri 5/82:15 pm
MCI
-
SAN
1 stop11h 46m
Frontier
Sun 5/106:33 pm
SAN
-
MCI
2 stops16h 57m
Frontier
Deal found 3/6$224
This Expedia deal was found by Cheapflights users on 3/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/82:15 pm
MCI
-
SAN
1 stop11h 46m
Multiple Airlines
Wed 5/1311:18 am
SAN
-
MCI
1 stop10h 31m
Multiple Airlines
Deal found 3/9$228
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 3/268:40 pm
MCI
-
SAN
1 stop29h 28m
Multiple Airlines
Mon 3/309:58 pm
SAN
-
MCI
1 stop17h 11m
Multiple Airlines
Deal found 3/6$229
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Mon 3/308:38 pm
MCI
-
SAN
2 stops20h 08m
Frontier
Fri 4/39:28 pm
SAN
-
MCI
1 stop20h 30m
Frontier
Deal found 3/9$230
This CheapOair deal was found by Cheapflights users on 3/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:43 pm
MCI
-
SAN
1 stop5h 19m
Frontier
Fri 4/109:28 pm
SAN
-
MCI
1 stop20h 30m
Frontier
Deal found 3/6$231
This Southwest deal was found by Cheapflights users on 3/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:00 pm
MCI
-
SAN
1 stop7h 10m
Southwest
Sun 4/56:35 pm
SAN
-
MCI
1 stop4h 45m
Southwest
Deal found 3/9$232
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/48:43 pm
MCI
-
SAN
2 stops12h 38m
Frontier
Sat 4/116:25 am
SAN
-
MCI
1 stop11h 33m
Frontier
Deal found 3/5$233
This Travelocity deal was found by Cheapflights users on 3/5. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/182:51 pm
MCI
-
SAN
1 stop7h 13m
Multiple Airlines
Tue 4/217:00 am
SAN
-
MCI
1 stop7h 56m
Multiple Airlines
Deal found 3/5$234
This Southwest deal was found by Cheapflights users on 3/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:35 pm
MCI
-
SAN
1 stop6h 45m
Southwest
Mon 4/65:45 pm
SAN
-
MCI
1 stop5h 10m
Southwest
Deal found 3/9$237

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$219
(Trip.com)

One-way from

$78
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$388
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. 5% potential increase in price ($17 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in March 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 March 10, 2026.
Use the filters below to find and compare flights from Kansas City to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 4/1

6:40 am-12:15 pm

1 stop7h 35m

San Diego

Sun 4/5

6:35 pm-1:20 am

1 stop4h 45m

$232

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 4/8

8:11 pm-11:48 pm

1 stop5h 37m

San Diego

Mon 4/13

9:45 pm-9:43 am

1 stop9h 58m

$237

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sat 4/18

1:54 pm-11:59 pm

2 stops12h 05m

San Diego

Thu 4/30

10:40 pm-8:41 am

1 stop8h 01m

$282

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Thu 3/26

6:50 pm-10:30 pm

1 stop5h 40m

San Diego

Sat 4/4

3:55 pm-1:55 am

2 stops8h 00m

$282

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Fri 4/17

5:18 pm-11:59 pm

2 stops8h 41m

San Diego

Mon 4/20

10:30 pm-8:52 am

1 stop8h 22m

$322

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Thu 4/2

11:30 am-1:00 pm

Nonstop3h 30m

San Diego

Sun 4/5

6:35 pm-1:20 am

1 stop4h 45m

$338

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Thu 4/2

11:30 am-1:00 pm

Nonstop3h 30m

San Diego

Thu 4/9

3:35 pm-11:35 pm

1 stop6h 00m

$342

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 5/6

12:25 pm-3:25 pm

1 stop5h 00m

San Diego

Mon 5/11

6:40 am-11:50 am

Nonstop3h 10m

$342

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Mon 3/30

6:35 pm-11:20 pm

1 stop6h 45m

San Diego

Fri 4/3

2:10 pm-7:15 pm

Nonstop3h 05m

$350
Quickest round-trip

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Fri 6/5

6:15 pm-7:35 pm

Nonstop3h 20m

San Diego

Sat 6/6

6:35 am-11:55 am

Nonstop3h 20m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kansas City-San Diego flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 6, 2026.

The best time to book flights from Kansas City to San Diego is 62 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 June is currently the most expensive (average of $190). 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 March 10, 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 March 10, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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.

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

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.

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

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.

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

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.

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

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.

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

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.

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

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?

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

    A quick flight from Kansas City to San Diego can take about 5h 37m. Southwest provides one of the quickest options available for as low as $237. 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 Alaska Airlines and Frontier - these airlines can fly you to your destination from $124 and $128, respectively. Users have found that Spirit Airlines is 69% 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 $92. Users have also found prices from $93 and $108 on Spirit Airlines and United Airlines, 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 $399, our data shows the cheapest flight currently is $198. When looking at the most popular route, (Kansas City - San Diego), you can expect to pay $204 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 Phoenix?

    Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall are the most popular attractions in Phoenix if you're in need of something to do during your layover. Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall are located about 4.0 mi, 16.7 mi, and 4.3 mi, respectively from Phoenix Sky Harbor Intl. Those on a layover in Phoenix in need of a rental car can book one at Phoenix Sky Harbor Intl for about $57.

  • 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 June is currently the most expensive (average of $190). 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

Browse thousands of different options on Cheapflights for your next trip

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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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$100Average$203FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$124Average$341FlexibilityNo cancel feeOn-time75%
FrontierCheapest$128Average$214FlexibilityNo cancel feeOn-time62%
DeltaCheapest$152Average$275FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$216Average$312FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$218Average$289FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$268Average$435FlexibilityNo cancel feeOn-time63%

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