Trip.com
>
Flights
>
Flights to United States
>
Flights to California
>
Flights to San Diego
Hotels in San Diego
>
Flights from Kansas City to San Diego

Find cheap airlines flights from Kansas City to San Diego

You can choose from 4 airlines that fly from Kansas City to San Diego, including United Airlines, American Airlines, and Delta Air Lines. Frontier Airlines has lowest fares on this route.
United Airlines logo United Airlines
American Airlines logo American Airlines
Delta Air Lines logo Delta Air Lines
Alaska Airlines logo Alaska Airlines
Airlines are determined based on actual purchased flight tickets from Kansas City to San Diego according to previous 12 months data from Trip.com.

Find flight deals from Kansas City to San Diego for the next 3 months. Book one way flights from $65 or round trip flights from $226.

      • MCI 2:34 PM
        11h 16m
        1 stop
        SAN 11:50 PM
        Kansas City - San Diego | Sun, May 10 | Frontier Airlines
        SAN 10:40 PM
        7h 20m
        1 stop
        MCI 8:00 AM
        San Diego - Kansas City | Sun, May 17 |
        $226 $600
        62% off
        62% off
        $600 $226
      • MCI 2:34 PM
        11h 16m
        1 stop
        SAN 11:50 PM
        Kansas City - San Diego | Wed, May 13 | Frontier Airlines
        SAN 7:00 AM
        7h 57m
        1 stop
        MCI 4:57 PM
        San Diego - Kansas City | Sun, May 17 | Alaska Airlines
        $233 $600
        61% off
        61% off
        $600 $233
      • MCI 6:30 AM
        9h 50m
        1 stop
        SAN 2:20 PM
        Kansas City - San Diego | Wed, May 13 | Delta Air Lines
        SAN 6:15 AM
        6h 46m
        1 stop
        MCI 3:01 PM
        San Diego - Kansas City | Sun, May 17 | Delta Air Lines
        $254 $600
        57% off
        57% off
        $600 $254
      • MCI 5:39 AM
        7h 37m
        1 stop
        SAN 11:16 AM
        Kansas City - San Diego | Sun, May 10 | Delta Air Lines
        SAN 6:15 AM
        6h 46m
        1 stop
        MCI 3:01 PM
        San Diego - Kansas City | Sun, May 17 | Delta Air Lines
        $268
        55% off
        $600 $268
      • MCI 2:15 PM
        11h 46m
        1 stop
        SAN 12:01 AM
        Kansas City - San Diego | Fri, May 15 | Frontier Airlines
        SAN 9:30 PM
        9h 49m
        1 stop
        MCI 9:19 AM
        San Diego - Kansas City | Mon, May 18 | Delta Air Lines
        $273
        55% off
        $600 $273
      • MCI 2:15 PM
        20h 19m
        1 stop
        SAN 8:34 AM
        Kansas City - San Diego | Mon, May 11 | Frontier Airlines
        SAN 12:49 PM
        9h
        1 stop
        MCI 11:49 PM
        San Diego - Kansas City | Fri, May 15 | Delta Air Lines
        $287
        52% off
        $600 $287
      • MCI 6:00 AM
        5h 15m
        1 stop
        SAN 9:15 AM
        Kansas City - San Diego | Fri, May 15 | United Airlines
        SAN 6:15 AM
        5h 43m
        1 stop
        MCI 1:58 PM
        San Diego - Kansas City | Mon, May 18 | Delta Air Lines
        $289
        52% off
        $600 $289
      • MCI 6:00 AM
        5h 15m
        1 stop
        SAN 9:15 AM
        Kansas City - San Diego | Mon, May 11 | United Airlines
        SAN 3:15 PM
        5h 58m
        1 stop
        MCI 11:13 PM
        San Diego - Kansas City | Fri, May 15 | Delta Air Lines
        $289
        52% off
        $600 $289
      • MCI 7:00 AM
        7h 42m
        1 stop
        SAN 12:42 PM
        Kansas City - San Diego | Mon, May 11 | Delta Air Lines
        SAN 12:49 PM
        9h
        1 stop
        MCI 11:49 PM
        San Diego - Kansas City | Fri, May 15 | Delta Air Lines
        $296
        51% off
        $600 $296
      • MKC 1:00 PM
        17h 25m
        1 stop
        SAN Invalid Date
        Kansas City - San Diego | Wed, Apr 15 | Normal Airline
        SAN 3:00 PM
        6h
        Nonstop
        MKC 4:00 PM
        San Diego - Kansas City | Fri, Apr 17 | Normal Airline
        Find more flights
        Find more flights
      • MCI 2:34 PM
        11h 16m
        1 stop
        SAN 11:50 PM
        Kansas City - San Diego | Wed, May 6 | Frontier Airlines
        $65 $254
        74% off
        74% off
        $254 $65
      • MCI 2:15 PM
        11h 46m
        1 stop
        SAN 12:01 AM
        Kansas City - San Diego | Tue, May 12 | Frontier Airlines
        $83 $254
        67% off
        67% off
        $254 $83
      • MCI 2:51 PM
        7h 13m
        1 stop
        SAN 8:04 PM
        Kansas City - San Diego | Sun, May 17 | Frontier Airlines
        $88 $254
        65% off
        65% off
        $254 $88
      • MCI 2:34 PM
        11h 16m
        1 stop
        SAN 11:50 PM
        Kansas City - San Diego | Wed, May 13 | Frontier Airlines
        $89
        65% off
        $254 $89
      • MCI 5:13 PM
        8h 14m
        1 stop
        SAN 11:27 PM
        Kansas City - San Diego | Tue, May 12 | Delta Air Lines
        $120
        53% off
        $254 $120
      • MCI 8:05 AM
        10h 25m
        1 stop
        SAN 4:30 PM
        Kansas City - San Diego | Sun, May 17 | Delta Air Lines
        $124
        51% off
        $254 $124
      • MCI 4:05 PM
        9h 10m
        1 stop
        SAN 11:15 PM
        Kansas City - San Diego | Sun, May 17 | Hahn Air
        $130
        49% off
        $254 $130
      • MCI 4:55 PM
        8h 15m
        1 stop
        SAN 11:10 PM
        Kansas City - San Diego | Tue, May 12 | Hahn Air
        $131
        48% off
        $254 $131
      • MCI 2:59 PM
        7h 5m
        1 stop
        SAN 8:04 PM
        Kansas City - San Diego | Tue, May 12 | United Airlines
        $136
        46% off
        $254 $136
      • MCI 8:10 AM
        10h 28m
        1 stop
        SAN 4:38 PM
        Kansas City - San Diego | Wed, May 6 | Delta Air Lines
        $136
        46% off
        $254 $136
      • MKC 1:00 PM
        17h 25m
        1 stop
        SAN Invalid Date
        Kansas City - San Diego | Wed, Apr 15 | Normal Airline
        Find more flights
        Find more flights

Displayed flight fares from Kansas City to San Diego are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Kansas City to San Diego

The distance between Kansas City and San Diego is approximately 2,148.33 km. It takes around 4 hours 57 minutes on average to fly from Kansas City to San Diego. Based on Trip.com's data travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight price$65
Cheapest round-trip ticket price$226
Off-season for travelOctober
Peak season for travelJuly
Flight distance2,148.33 km
Average flight time4 hours 57 minutes
Popular airlineUnited Airlines
Flight statistics for the Kansas City–San Diego route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Kansas City to San Diego (MKC-SAN)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as $65 on Cheapest nonstop routes (e.g. MCI to SAN on Wed, May 6), while Frontier Airlines offers Cheapest nonstop round-trips from $226 departing on Sun, May 10 and returning on Sun, May 17.
  • At the moment, several airlines serve connecting flights from Kansas City to San Diego, including: United Airlines American Airlines Delta Air Lines Alaska Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • It takes around 4 hours 57 minutes to fly from Kansas City (MKC) to San Diego (SAN).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Kansas City to San Diego is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 1 flight per week flying from Kansas City to San Diego. You can check the weekly schedule for popular airlines on this route below: United Airlines: -/-/-/-/-/-/- -- UA2309 (06:08)
  • To find best deals on flights from Kansas City to San Diego, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, May 6, with one-way flights priced at just $65.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for San Diego travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Kansas City to San Diego is October, when demand for travel is lower.
  • After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Kansas City to San Diego on April 17, 2026 with Frontier Airlines, with prices starting at $71.
  • You can land at any one of the following hubs in San Diego, with Kansas City International Airport to San Diego International Airport (MCI-SAN) is by far the most common option on this route: San Diego International Airport (SAN) McClellan-Palomar Airport (CLD) Marine Corps Air Station Miramar (NKX).
  • The time difference between San Diego and Kansas City is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Explore More Popular Flights

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.