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Cheap flights from Kansas City to San Diego from $58

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 12/20. 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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Multiple Airlines Logo
6:55 am - 3:06 pmMCI-SAN
10h 11m1 stop
Multiple Airlines Logo
6:34 am - 7:50 pmSAN-MCI
11h 16m1 stop
$233Multiple Airlines
Find Deal
Sat, Dec 13 - Mon, Dec 15
Frontier Logo
8:28 pm - 3:27 pmMCI-SAN
20h 59m2 stops
Frontier Logo
6:25 am - 10:07 amSAN-MCI
25h 42m1 stop
$235Frontier
Find Deal
Sun, Nov 23 - Wed, Dec 3
Frontier Logo
8:28 pm - 7:49 amMCI-SAN
13h 21m2 stops
Frontier Logo
8:56 am - 7:34 pmSAN-MCI
8h 38m1 stop
$236Frontier
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Sat, Nov 22 - Tue, Nov 25
American Airlines Logo
6:08 pm - 11:09 pmMCI-SAN
7h 01m1 stop
American Airlines Logo
1:27 pm - 11:23 pmSAN-MCI
7h 56m1 stop
$259American Airlines
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Tue, Apr 14 - Tue, Apr 21
Southwest Logo
11:05 am - 2:10 pmMCI-SAN
5h 05m1 stop
Southwest Logo
8:35 am - 4:30 pmSAN-MCI
5h 55m1 stop
$264Southwest
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Sat, Jan 17 - Thu, Jan 22
American Airlines Logo
7:10 am - 11:57 amMCI-SAN
6h 47m1 stop
American Airlines Logo
4:25 pm - 11:39 pmSAN-MCI
5h 14m1 stop
$265American Airlines
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Wed, Dec 3 - Fri, Dec 5
United Airlines Logo
6:00 am - 9:15 amMCI-SAN
5h 15m1 stop
United Airlines Logo
4:11 pm - 11:07 pmSAN-MCI
4h 56m1 stop
$269United Airlines
Find Deal
Wed, Dec 10 - Sat, Dec 13
United Airlines Logo
5:10 pm - 11:42 pmMCI-SAN
8h 32m2 stops
United Airlines Logo
8:01 am - 4:38 pmSAN-MCI
6h 37m1 stop
$274United Airlines
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Sat, Dec 13 - Wed, Dec 17
Delta Logo
3:45 pm - 8:42 pmMCI-SAN
6h 57m1 stop
Delta Logo
6:20 am - 3:00 pmSAN-MCI
6h 40m1 stop
$293Delta
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Sat, Nov 22 - Wed, Dec 3
Delta Logo
4:15 pm - 10:58 pmMCI-SAN
8h 43m1 stop
Delta Logo
10:10 am - 5:23 pmSAN-MCI
5h 13m1 stop
$294Delta
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Thu, Apr 23 - Thu, Apr 30

United Airlines flights from Kansas City to San Diego

Our best United Airlines deals on Kansas City to San Diego flight tickets
United Airlines
Dec 10
MCI6:00 amKansas City
5h 15m
1 stop
SAN9:15 amSan Diego
Dec 13
SAN4:11 pmSan Diego
4h 56m
1 stop
MCI11:07 pmKansas City
$269
Find similar
United Airlines
Dec 13
MCI5:10 pmKansas City
8h 32m
2 stops
SAN11:42 pmSan Diego
Dec 17
SAN8:01 amSan Diego
6h 37m
1 stop
MCI4:38 pmKansas City
$274
Find similar
United Airlines
Nov 20
MCI5:10 pmKansas City
5h 44m
1 stop
SAN8:54 pmSan Diego
Nov 24
SAN4:10 pmSan Diego
5h 32m
1 stop
MCI11:42 pmKansas City
$397
Find similar

Frontier flights from Kansas City to San Diego

Our best Frontier deals on Kansas City to San Diego flight tickets
Frontier
Nov 23
MCI8:28 pmKansas City
20h 59m
2 stops
SAN3:27 pmSan Diego
Dec 3
SAN6:25 amSan Diego
25h 42m
1 stop
MCI10:07 amKansas City
$235
Find similar
Frontier
Nov 22
MCI8:28 pmKansas City
13h 21m
2 stops
SAN7:49 amSan Diego
Nov 25
SAN8:56 amSan Diego
8h 38m
1 stop
MCI7:34 pmKansas City
$236
Find similar
Frontier
Nov 27
MCI10:26 amKansas City
23h 28m
1 stop
SAN7:54 amSan Diego
Dec 4
SAN3:47 pmSan Diego
17h 31m
2 stops
MCI11:18 amKansas City
$240
Find similar

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 November 6, 2025.
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 12/13

6:55 am-3:06 pm

1 stop10h 11m

San Diego

Mon 12/15

6:34 am-7:50 pm

1 stop11h 16m

$233

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sun 11/23

8:28 pm-3:27 pm

2 stops20h 59m

San Diego

Wed 12/3

6:25 am-10:07 am

1 stop25h 42m

$235

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sat 11/22

8:28 pm-7:49 am

2 stops13h 21m

San Diego

Tue 11/25

8:56 am-7:34 pm

1 stop8h 38m

$236

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Tue 4/14

6:08 pm-11:09 pm

1 stop7h 01m

San Diego

Tue 4/21

1:27 pm-11:23 pm

1 stop7h 56m

$259

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sat 1/17

11:05 am-2:10 pm

1 stop5h 05m

San Diego

Thu 1/22

8:35 am-4:30 pm

1 stop5h 55m

$264

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 12/3

7:10 am-11:57 am

1 stop6h 47m

San Diego

Fri 12/5

4:25 pm-11:39 pm

1 stop5h 14m

$265

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Wed 12/10

6:00 am-9:15 am

1 stop5h 15m

San Diego

Sat 12/13

4:11 pm-11:07 pm

1 stop4h 56m

$269

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sat 12/13

5:10 pm-11:42 pm

2 stops8h 32m

San Diego

Wed 12/17

8:01 am-4:38 pm

1 stop6h 37m

$274

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Sat 11/22

3:45 pm-8:42 pm

1 stop6h 57m

San Diego

Wed 12/3

6:20 am-3:00 pm

1 stop6h 40m

$293

Kansas CitySan Diego

MCI - SAN

MCISAN

Kansas City

Thu 4/23

4:15 pm-10:58 pm

1 stop8h 43m

San Diego

Thu 4/30

10:10 am-5:23 pm

1 stop5h 13m

$294

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 January is also very affordable. Most momondo users find prices during this month for around $276.

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 Monday. Travelers who choose to depart for San Diego on a Monday will often find tickets for as low as $511. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $779. 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 evening when flights can be purchased for as low as $278. Flights in the morning are often more expensive with an average ticket price of $551.

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 $315 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 $282 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 November 2025, prices for Kansas City to San Diego flights are approximately 35% 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

$225

Fastest flight time

3h 30m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from Kansas City in the past 72 hours is $225. The best round-trip flight deal from Kansas City to San Diego found on momondo in the last 72 hours is $494.
The fastest flight from Kansas City to San Diego takes 3h 30m
Direct flights go from Kansas City to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)
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  • 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 5h 05m 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 $82Free CancellationRating
6.3
8,114 reviews
Search Spirit Airlines flights
FrontierPriceFrom $110Free CancellationRating
5.8
3,116 reviews
Search Frontier flights
American AirlinesPriceFrom $227Free CancellationRating
7.2
11,041 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $228Free CancellationRating
8.0
11,243 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,003 reviews
Search United Airlines flights
DeltaPriceFrom $248Free CancellationRating
7.9
8,004 reviews
Search Delta flights
SouthwestPriceFrom $266Free CancellationRating
8.0
4,240 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 $266. Generally, Southwest has 10 flights on this route every week with an average price of $460. 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
National City
Imperial Beach
La Mesa
Poway
Borrego Springs
San Ysidro
Lemon Grove
Alpine
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.
Start using Trips
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