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Cheap flights from Kansas City to San Diego from $61

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kansas City to San Diego departing on 2/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:36 pm - 8:24 am
MCI
-
SAN
13h 48m
1 stop
Frontier Logo
6:25 am - 7:46 pm
SAN
-
MCI
11h 21m
1 stop
$123Frontier
Sat, Feb 21 - Sat, Feb 28
Frontier Logo
8:41 pm - 8:24 am
MCI
-
SAN
13h 43m
1 stop
Frontier Logo
6:25 am - 7:55 pm
SAN
-
MCI
11h 30m
1 stop
$126Frontier
Sat, Feb 28 - Sat, Mar 7
Frontier Logo
8:41 pm - 12:08 am
MCI
-
SAN
5h 27m
1 stop
Frontier Logo
8:45 am - 3:44 pm
SAN
-
MCI
4h 59m
1 stop
$128Frontier
Sat, Feb 28 - Wed, Mar 4
Frontier Logo
9:24 pm - 12:08 am
MCI
-
SAN
28h 44m
1 stop
Frontier Logo
6:25 am - 7:55 pm
SAN
-
MCI
11h 30m
1 stop
$130Frontier
Thu, Feb 26 - Sat, Mar 7
Frontier Logo
9:24 pm - 12:08 am
MCI
-
SAN
28h 44m
1 stop
Frontier Logo
9:18 pm - 7:55 pm
SAN
-
MCI
20h 37m
1 stop
$136Frontier
Thu, Feb 26 - Sun, Mar 8
Frontier Logo
4:49 pm - 4:04 pm
MCI
-
SAN
25h 15m
1 stop
Frontier Logo
7:11 am - 3:44 pm
SAN
-
MCI
6h 33m
1 stop
$139Frontier
Sun, Feb 22 - Wed, Feb 25
Frontier Logo
4:39 pm - 11:14 am
MCI
-
SAN
20h 35m
1 stop
Frontier Logo
6:25 am - 7:55 pm
SAN
-
MCI
11h 30m
1 stop
$141Frontier
Wed, Mar 4 - Sat, Mar 7
Frontier Logo
4:39 pm - 9:41 pm
MCI
-
SAN
7h 02m
1 stop
Frontier Logo
6:25 am - 7:46 pm
SAN
-
MCI
11h 21m
1 stop
$148Frontier
Wed, Feb 18 - Sat, Feb 28
Frontier Logo
9:24 pm - 7:40 am
MCI
-
SAN
12h 16m
1 stop
Frontier Logo
8:45 am - 3:44 pm
SAN
-
MCI
4h 59m
1 stop
$154Frontier
Thu, Feb 26 - Wed, Mar 4
Frontier Logo
4:39 pm - 5:31 pm
MCI
-
SAN
26h 52m
2 stops
Frontier Logo
6:25 am - 7:55 pm
SAN
-
MCI
11h 30m
1 stop
$156Frontier
Wed, Mar 4 - Sat, Mar 7

Frontier flights from Kansas City to San Diego

Our best Frontier deals on Kansas City to San Diego flight tickets
Frontier
Feb 21
MCI8:36 pmKansas City
13h 48m
1 stop
SAN8:24 amSan Diego
Feb 28
SAN6:25 amSan Diego
11h 21m
1 stop
MCI7:46 pmKansas City
$123
Frontier
Feb 28
MCI8:41 pmKansas City
13h 43m
1 stop
SAN8:24 amSan Diego
Mar 7
SAN6:25 amSan Diego
11h 30m
1 stop
MCI7:55 pmKansas City
$126
Frontier
Feb 28
MCI8:41 pmKansas City
5h 27m
1 stop
SAN12:08 amSan Diego
Mar 4
SAN8:45 amSan Diego
4h 59m
1 stop
MCI3:44 pmKansas City
$128

United Airlines flights from Kansas City to San Diego

Our best United Airlines deals on Kansas City to San Diego flight tickets
United Airlines
Feb 4
MCI1:42 pmKansas City
8h 12m
2 stops
SAN7:54 pmSan Diego
Feb 11
SAN11:08 amSan Diego
7h 25m
2 stops
MCI8:33 pmKansas City
$304
United Airlines
Feb 1
MCI5:45 amKansas City
5h 35m
1 stop
SAN9:20 amSan Diego
Feb 5
SAN6:15 amSan Diego
7h 53m
2 stops
MCI4:08 pmKansas City
$322
United Airlines
Feb 1
MCI1:42 pmKansas City
8h 12m
2 stops
SAN7:54 pmSan Diego
Feb 4
SAN11:08 amSan Diego
7h 25m
2 stops
MCI8:33 pmKansas City
$378

momondo 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, momondo users made 832,500 searches. Data last updated January 23, 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

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sat 2/21

8:36 pm-8:24 am

1 stop13h 48m

San Diego

Sat 2/28

6:25 am-7:46 pm

1 stop11h 21m

$123

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sat 2/28

8:41 pm-8:24 am

1 stop13h 43m

San Diego

Sat 3/7

6:25 am-7:55 pm

1 stop11h 30m

$126

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sat 2/28

8:41 pm-12:08 am

1 stop5h 27m

San Diego

Wed 3/4

8:45 am-3:44 pm

1 stop4h 59m

$128

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Thu 2/26

9:24 pm-12:08 am

1 stop28h 44m

San Diego

Sat 3/7

6:25 am-7:55 pm

1 stop11h 30m

$130

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Thu 2/26

9:24 pm-12:08 am

1 stop28h 44m

San Diego

Sun 3/8

9:18 pm-7:55 pm

1 stop20h 37m

$136

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sun 2/22

4:49 pm-4:04 pm

1 stop25h 15m

San Diego

Wed 2/25

7:11 am-3:44 pm

1 stop6h 33m

$139

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 3/4

4:39 pm-11:14 am

1 stop20h 35m

San Diego

Sat 3/7

6:25 am-7:55 pm

1 stop11h 30m

$141

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 2/18

4:39 pm-9:41 pm

1 stop7h 02m

San Diego

Sat 2/28

6:25 am-7:46 pm

1 stop11h 21m

$148

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Thu 2/26

9:24 pm-7:40 am

1 stop12h 16m

San Diego

Wed 3/4

8:45 am-3:44 pm

1 stop4h 59m

$154

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 3/4

4:39 pm-5:31 pm

2 stops26h 52m

San Diego

Sat 3/7

6:25 am-7:55 pm

1 stop11h 30m

$156

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from Kansas City to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of September, then departing from Kansas City during the month October is also very affordable. Most momondo users find prices during this month for around $286.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Kansas City to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $504. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $693. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the morning when flights can be purchased for as low as $549. Flights in the afternoon are often more expensive with an average ticket price of $565.

What is the cheapest Kansas City to San Diego flight route?

Fly from Kansas City to San Diego for the best Kansas City - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Kansas City when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $320 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Kansas City for as low as $286 on momondo.

What cabin class options are available on Kansas City to San Diego flights?

There is only 1 cabin class available to choose from on Kansas City to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Kansas City to San Diego flight prices changed over time?

As of January 2026, prices for Kansas City to San Diego flights are approximately 26% more expensive when compared to flights at the same time last year.

When to book flights from Kansas City to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Kansas City to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Kansas City to San Diego (MCI to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kansas City to San Diego

Best Price Found

$398

Fastest flight time

3h 15m

Direct flights

Every day

Airports in San Diego

1 airport
The best flight deal from Kansas City to San Diego found on momondo in the last 72 hours is $398
The fastest flight from Kansas City to San Diego takes 3h 15m
Direct flights go from Kansas City to San Diego every day.
There is 1 airport in San Diego. From Kansas City there are direct flights to San Diego (SAN).
Search flight deals

  • How far is Kansas City to San Diego by plane?

    The distance between Kansas City and San Diego is about 1333.1 mi. Typically, this will take 3h 15m by plane in normal conditions.

  • When did momondo last update prices for flights from Kansas City Airport to San Diego Airport?

    Prices for flights from Kansas City Airport to San Diego Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Kansas City Airport to San Diego Airport?

  • How old do you have to be to fly from Kansas City Airport to San Diego Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kansas City Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Kansas City to San Diego?

  • What is the most popular airline from Kansas City to San Diego?

Best airlines flying from Kansas City to San Diego

Compare and see reviews for airlines that fly from Kansas City to San Diego with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $100Free CancellationRating
6.3
8,367 reviews
Search Spirit Airlines flights
FrontierPriceFrom $110Free CancellationRating
5.7
3,057 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $124Free CancellationRating
8.0
11,781 reviews
Search Alaska Airlines flights
DeltaPriceFrom $164Free CancellationRating
7.9
8,093 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
11,176 reviews
Search American Airlines flights
United AirlinesPriceFrom $241Free CancellationRating
7.4
9,195 reviews
Search United Airlines flights
SouthwestPriceFrom $268Free CancellationRating
8.0
4,267 reviews
Search Southwest flights

  • Southwest Flights From Kansas City to San Diego

    The lowest priced Southwest flight from Kansas City to San Diego from the last 72 hours was $268. Generally, Southwest has 5 flights on this route every week with an average price of $447. Southwest is rated 8.0/10 by our users.

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
Poway
National City
Imperial Beach
San Ysidro
Borrego Springs
La Mesa
Alpine
Lemon Grove
Santee

Why use momondo?

Why should I use momondo to find a flight deal from Kansas City to San Diego?

Finding the right flight to San Diego from Kansas City is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Diego quick and easy, saving you time and money.

Can I find flights from Kansas City to San Diego with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Diego from Kansas City with this policy.

How can momondo help me find flights from Kansas City to San Diego?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Kansas City to San Diego.

I’m not ready to book a flight from Kansas City to San Diego right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Diego, momondo offers a useful price alert feature which will track prices for flights to San Diego from Kansas City and alert you when they change.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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