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Flights from Kansas City to San Diego

Search cheap flights from Kansas City to San Diego in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$63, and round-trip tickets start at US$234.

      • MCI 14:34
        11h 16m
        1 stop
        SAN 23:50
        Kansas City - San Diego | Tue, May 12 | Frontier Airlines
        SAN 07:00
        7h 57m
        1 stop
        MCI 16:57
        San Diego - Kansas City | Sat, May 16 | Alaska Airlines
        US$234 US$710
        67% off
        67% off
        US$710 US$234
      • MCI 06:30
        9h 50m
        1 stop
        SAN 14:20
        Kansas City - San Diego | Tue, May 12 | Delta Air Lines
        SAN 06:15
        6h 46m
        1 stop
        MCI 15:01
        San Diego - Kansas City | Sat, May 16 | Delta Air Lines
        US$255 US$710
        64% off
        64% off
        US$710 US$255
      • MCI 14:34
        20h 8m
        1 stop
        SAN 08:42
        Kansas City - San Diego | Sat, May 30 | Frontier Airlines
        SAN 06:15
        5h 43m
        1 stop
        MCI 13:58
        San Diego - Kansas City | Thu, Jun 4 | Delta Air Lines
        US$263 US$710
        63% off
        63% off
        US$710 US$263
      • MCI 17:52
        8h 15m
        1 stop
        SAN 00:07
        Kansas City - San Diego | Sat, May 30 | Alaska Airlines
        SAN 06:15
        5h 43m
        1 stop
        MCI 13:58
        San Diego - Kansas City | Thu, Jun 4 | Delta Air Lines
        US$274
        61% off
        US$710 US$274
      • MCI 14:15
        11h 46m
        1 stop
        SAN 00:01
        Kansas City - San Diego | Thu, May 14 | Frontier Airlines
        SAN 21:30
        9h 49m
        1 stop
        MCI 09:19
        San Diego - Kansas City | Sun, May 17 | Delta Air Lines
        US$274
        61% off
        US$710 US$274
      • MCI 15:38
        7h 42m
        1 stop
        SAN 21:20
        Kansas City - San Diego | Thu, Jun 25 | Delta Air Lines
        SAN 21:30
        10h 1m
        1 stop
        MCI 09:31
        San Diego - Kansas City | Sun, Jun 28 | Delta Air Lines
        US$283
        60% off
        US$710 US$283
      • MCI 06:00
        5h 15m
        1 stop
        SAN 09:15
        Kansas City - San Diego | Thu, May 14 | United Airlines
        SAN 06:15
        5h 43m
        1 stop
        MCI 13:58
        San Diego - Kansas City | Sun, May 17 | Delta Air Lines
        US$291
        59% off
        US$710 US$291
      • MCI 05:40
        7h 44m
        1 stop
        SAN 11:24
        Kansas City - San Diego | Thu, May 14 | Delta Air Lines
        SAN 21:30
        9h 49m
        1 stop
        MCI 09:19
        San Diego - Kansas City | Sun, May 17 | Delta Air Lines
        US$298
        57% off
        US$710 US$298
      • MCI 14:40
        5h 48m
        1 stop
        SAN 18:28
        Kansas City - San Diego | Tue, May 12 | American Airlines
        SAN 06:15
        6h 46m
        1 stop
        MCI 15:01
        San Diego - Kansas City | Sat, May 16 | Delta Air Lines
        US$305
        56% off
        US$710 US$305
      • MCI 13:50
        5h 29m
        1 stop
        SAN 17:19
        Kansas City - San Diego | Tue, May 12 | United Airlines
        SAN 15:15
        6h 44m
        1 stop
        MCI 23:59
        San Diego - Kansas City | Sat, May 16 | Delta Air Lines
        US$311
        56% off
        US$710 US$311
      • MKC 13:00
        17h 25m
        1 stop
        SAN 14:00
        Kansas City - San Diego | Wed, May 13 | Normal Airline
        SAN 15:00
        6h
        Nonstop
        MKC 16:00
        San Diego - Kansas City | Fri, May 15 | Normal Airline
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        Find more flights
      • MCI 14:34
        20h 8m
        1 stop
        SAN 08:42
        Kansas City - San Diego | Thu, May 14 | Frontier Airlines
        US$63 US$294
        79% off
        79% off
        US$294 US$63
      • MCI 14:34
        11h 16m
        1 stop
        SAN 23:50
        Kansas City - San Diego | Sun, Jun 7 | Frontier Airlines
        US$77 US$294
        74% off
        74% off
        US$294 US$77
      • MCI 14:51
        7h 13m
        1 stop
        SAN 20:04
        Kansas City - San Diego | Sun, May 17 | Frontier Airlines
        US$89 US$294
        70% off
        70% off
        US$294 US$89
      • MCI 08:05
        10h 25m
        1 stop
        SAN 16:30
        Kansas City - San Diego | Sun, May 17 | Delta Air Lines
        US$124
        57% off
        US$294 US$124
      • MCI 13:45
        12h 8m
        1 stop
        SAN 23:53
        Kansas City - San Diego | Thu, Jul 2 | Frontier Airlines
        US$126
        56% off
        US$294 US$126
      • MCI 08:05
        10h 25m
        1 stop
        SAN 16:30
        Kansas City - San Diego | Thu, May 14 | Delta Air Lines
        US$129
        56% off
        US$294 US$129
      • MCI 16:05
        9h 10m
        1 stop
        SAN 23:15
        Kansas City - San Diego | Sun, May 17 | Hahn Air
        US$131
        55% off
        US$294 US$131
      • MCI 06:20
        6h 23m
        1 stop
        SAN 10:43
        Kansas City - San Diego | Thu, Jul 2 | Delta Air Lines
        US$132
        55% off
        US$294 US$132
      • MCI 14:34
        11h 16m
        1 stop
        SAN 23:50
        Kansas City - San Diego | Wed, May 13 | Frontier Airlines
        US$134
        54% off
        US$294 US$134
      • MCI 08:05
        10h 25m
        1 stop
        SAN 16:30
        Kansas City - San Diego | Sun, Jun 7 | Delta Air Lines
        US$136
        54% off
        US$294 US$136
      • MKC 13:00
        17h 25m
        1 stop
        SAN 14:00
        Kansas City - San Diego | Wed, May 13 | 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.

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 US$63 on Cheapest nonstop routes (e.g. MCI to SAN on Thu, May 14), while Frontier Airlines offers Cheapest nonstop round-trips from US$234 departing on Tue, May 12 and returning on Sat, May 16.
  • At the moment, several airlines serve connecting flights from Kansas City to San Diego, including: American 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 about 4 hours 57 minutes to fly from Kansas City to San Diego.
  • 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.
  • 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 Thu, May 14, with one-way flights priced at just US$63.
    · 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 May flight calendar, it's currently cheapest to fly from Kansas City to San Diego on May 16, 2026 with Frontier Airlines, with prices starting at US$88.
  • 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: McClellan-Palomar Airport (CLD) Marine Corps Air Station Miramar (NKX) San Diego International Airport (SAN).
  • 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.

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

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Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.