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$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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — SAN
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Kansas City to San Diego are usually found in August or January, booked 53 days in advance, depart on a Monday or Saturday and return on a Wednesday

Cheap 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 July 28, 2025.

Round-trip from

$206
(Mytrip)

One-way from

$78
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$309
From Kansas City to San Diego
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One-way flight from Kansas City to San Diego
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Highest demand for flights based on searches. 7% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 28, 2025.

This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/122:32 pmMCI - SAN
1 stop5h 23mSpirit Airlines
Fri 8/227:01 pmSAN - MCI
2 stops17h 00mSpirit Airlines
Deal found 7/27$206
This CheapOair deal was found by Cheapflights users on 7/27. 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.
Fri 8/88:01 pmMCI - SAN
1 stop5h 51mMultiple Airlines
Fri 8/156:15 amSAN - MCI
1 stop9h 52mMultiple Airlines
Deal found 7/27$220
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/88:01 pmMCI - SAN
1 stop5h 51mFrontier
Fri 8/1511:21 amSAN - MCI
1 stop5h 43mFrontier
Deal found 7/26$226
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:00 amMCI - SAN
1 stop7h 56mAlaska Airlines
Tue 9/237:00 amSAN - MCI
1 stop7h 01mAlaska Airlines
Deal found 7/28$248
This Delta deal was found by Cheapflights users on 7/28. 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.
Fri 9/56:00 amMCI - SAN
1 stop6h 59mDelta
Tue 9/96:20 amSAN - MCI
1 stop6h 25mDelta
Deal found 7/28$249
This Southwest deal was found by Cheapflights users on 7/26. 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.
Wed 11/127:45 amMCI - SAN
1 stop6h 05mSouthwest
Wed 11/198:40 amSAN - MCI
2 stops6h 30mSouthwest
Deal found 7/26$254
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/105:50 amMCI - SAN
1 stop5h 05mAmerican Airlines
Thu 8/144:20 pmSAN - MCI
1 stop5h 39mAmerican Airlines
Deal found 7/27$267

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 July 28, 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

Tue 8/12

2:32 pm-5:55 pm

1 stop5h 23m

San Diego

Fri 8/22

7:01 pm-2:01 pm

2 stops17h 00m

$206

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Fri 8/8

8:01 pm-11:52 pm

1 stop5h 51m

San Diego

Fri 8/15

6:15 am-6:07 pm

1 stop9h 52m

$212

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Fri 8/8

8:01 pm-11:52 pm

1 stop5h 51m

San Diego

Fri 8/15

11:21 am-7:04 pm

1 stop5h 43m

$226

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Tue 9/16

7:00 am-12:56 pm

1 stop7h 56m

San Diego

Tue 9/23

7:00 am-4:01 pm

1 stop7h 01m

$248

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Fri 9/5

6:00 am-10:59 am

1 stop6h 59m

San Diego

Tue 9/9

6:20 am-4:46 pm

1 stop8h 26m

$249

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sat 8/23

4:15 pm-5:35 pm

Nonstop3h 20m

San Diego

Sat 8/30

1:25 pm-6:35 pm

Nonstop3h 10m

$277

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Thu 9/18

2:55 pm-6:42 pm

1 stop5h 47m

$78

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Mon 9/29

3:01 pm-11:53 pm

1 stop10h 52m

$80

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 9/24

7:00 am-2:48 pm

1 stop9h 48m

$124

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 8/27

6:00 am-10:59 am

1 stop6h 59m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 12 results
1
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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 July 25, 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, August is the cheapest month in which you can book a flight from Kansas City to San Diego (average of $286). Flying from Kansas City to San Diego in March is currently the most expensive (average of $366). 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 July 28, 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 16, 2024.

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.

What’s the top layover airport for flights from Kansas City to San Diego?

Share of 1-stop round-trip flights from Kansas City to San Diego chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 50% of 1-stop itineraries from Kansas City to San Diego on Cheapflights.

What’s the cheapest layover airport for flights from Kansas City to San Diego?

Average round-trip fare for 1-stop flights from Kansas City to San Diego, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Seattle (SEA) is the most affordable 1-stop option, with an average round-trip price of $236.

What’s the fastest layover option from Kansas City to San Diego?

Shortest average travel time for 1-stop one-way flights from Kansas City to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Seattle (SEA) have the shortest average one-way travel time for 1-stop routes: 3h 42m.

Which airport typically offers the quickest layover for flights from Kansas City to San Diego?

Average layover duration for 1-stop one-way flights from Kansas City to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Seattle (SEA) offer the fastest connection on this route, with an average layover time of 2h 21m.

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 July 28, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,892 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    Within the past month, 3 users have taken a look at flights from Kansas City to San Diego.

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

    Currently priced at $206, 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 $226 and $248, respectively. Users have found that Spirit Airlines is 34% 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 Spirit Airlines. According to our data, you can fly for as low as $78. Users have also found prices from $80 and $124 on Frontier and Alaska 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 $417, our data shows the cheapest flight currently is $230. When looking at the most popular route, (Kansas City - San Diego), you can expect to pay $165 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. Kansas City to San Diego flights stop in Phoenix the next most.

  • 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 $64.

  • What are some popular points of interest to see during a layover in Phoenix?

    Most Phoenix visitors opt to spend their time at Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall. 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. Travelers in need of a car in Phoenix can rent one for about $52 per day.

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

    Kansas City to San Diego flights have a layover in Las Vegas 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, August is the cheapest month in which you can book a flight from Kansas City to San Diego (average of $286). Flying from Kansas City to San Diego in March is currently the most expensive (average of $366). 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
Poway
National City
Lemon Grove
Imperial Beach
La Mesa
Alpine
Santee

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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.
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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 July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$97Average$205FlexibilityNo cancel feeOn-time65%
FrontierCheapest$110Average$210FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$228Average$248FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$232Average$282FlexibilityNo cancel feeOn-time71%
DeltaCheapest$238Average$272FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$247Average$328FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$265Average$460FlexibilityNo cancel feeOn-time63%

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