$95 Cheap Flights from Kansas City (MCI) to San Diego (SAN)

Kansas City (MCI) to San Diego (SAN) at a glance

Explore a range of airlines offering weekly flights from Kansas City International Airport (MCI) to San Diego International Airport (SAN) on this domestic short-haul route. Whether you prefer full-service or budget-friendly carriers, you can compare options to discover the itinerary that aligns with your travel plans and budget. With various choices available, you can easily find details about flight times and the latest deals on flights to help you plan your next adventure to San Diego's iconic sights and vibrant neighborhoods.

• Fastest flight duration: around 3h 30m non-stop
• Route distance: roughly 1,300 miles (2,090 km)
• Flights per week: around 35+ flights with multiple daily departures on average
• Typical fares (one-way): economy tickets often range from $100–$365, depending on seasonality and how far ahead you book

Flights from Kansas City International Airport (MCI) to San Diego International Airport (SAN)

According to recent traveler bookings, here are the top airlines favored for flights from Kansas City to San Diego, featuring both non-stop and one-stop options. Popular layover choices include Denver International Airport (DEN) with a layover of about 1 hour, Sky Harbor International Airport (PHX) also with around a 1-hour layover, and Dallas-Fort Worth International Airport (DFW) offering a slightly longer layover of about 1 hour and 15 minutes. These routes provide flexibility in selecting the best combination of price, travel time, and cabin class for your journey.

• Southwest Airlines: This budget-friendly airline provides both non-stop and one-stop flights, with one-way ticket prices generally falling between $100 and $440. It represents about 34% of departures on this route, with a typical one-stop flight lasting 4 hours and 30 minutes, totaling around 5 hours and 45 minutes for the journey.
• American Airlines: As a full-service airline, American Airlines offers one-stop flights, with one-way fares usually ranging from $110 to $340. It makes up roughly 28% of departures for this route, featuring an in-flight duration of 4 hours and 30 minutes, culminating in a total travel time of roughly 5 hours and 45 minutes, including layover time.
• United: Another full-service option, United provides both non-stop and one-stop services, with one-way fares typically priced between $110 and $320. This airline accounts for about 19% of flights on this route, with a standard in-flight duration of 4 hours and 30 minutes, leading to a total journey time of approximately 5 hours and 45 minutes.
• Delta: Delta operates as a full-service carrier offering one-stop flights, with one-way fares generally from $120 to $350. It covers around 13% of departures on this route, featuring an in-flight time of 4 hours and 30 minutes and a total travel duration of about 5 hours and 45 minutes, including any layovers.
• Frontier Airlines: This low-cost airline provides one-stop service, with one-way fares typically ranging from $100 to $290. Frontier accounts for roughly 5% of departures on this route, with an in-flight time of 4 hours and 30 minutes, leading to a total journey time of around 5 hours and 45 minutes, including layover considerations.

Travelers flying from Kansas City to San Diego have the option to upgrade their flight. Delta provides both first-class and premium economy service, while United and American Airlines offer first-class seating as well.

Best time to fly from Kansas City (MCI) to San Diego (SAN)

The most popular months for travelers flying from Kansas City to San Diego are January, March, and April, when peak temperatures in San Diego reach up to 60.6°F in April. If you prefer quieter travel, consider September, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 72°F. For better deals, January usually offers the lowest average one-way fare around $178. Flight availability peaks in July, with approximately 44 flights per week, making it easier to find convenient departure times. January and February have the fewest flights, with approximately 30 flights per week.

• Cheapest time to fly: January usually offers good deals with average one-way fare around $178, roughly 8% cheaper than the yearly average.
• More budget-friendly months to fly: September, July, and August typically offer average one-way fares of around $186.
• Most flight options: July has the highest number of flights from Kansas City to San Diego, with approximately 44 flights per week, giving you more flexibility in scheduling your trip.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Kansas City (MCI) to San Diego (SAN)

• Kansas City to Carlsbad (MCI-CLD): Located approximately 28 miles from San Diego International Airport (SAN), McClellan-Palomar Airport (CLD) serves as the destination. One-way economy ticket prices on this route generally fall between $115 and $375, influenced by the time of year and how far in advance the booking is made. Typically, travelers can find one-stop flights, with common layover points being Sky Harbor International Airport (PHX) and Denver International Airport (DEN). The main airlines operating on this route include American Airlines and United.

How to find the best prices for flights from Kansas City (MCI) to San Diego (SAN)

Getting some of the best deals on flights from Kansas City to San Diego is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Evening departures (6 PM-12 AM) often offer lower prices, while morning flights (5 AM-12 PM) are more popular. Additionally, flying on Tuesday generally yields cheaper prices, although Thursday remains the most popular travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find San Diego hotel and flight deals.
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at San Diego International Airport from Kansas City International Airport

San Diego welcomes travelers from Kansas City with a range of transport options based on price, convenience, and proximity. Here's how to reach San Diego efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in San Diego, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
• Car rental: Renting a car from San Diego International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at San Diego International Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From San Diego International Airport, Seaport, a seaport, is located about 0.1 miles away on foot, while B Street Cruise Ship Terminal, a cruise terminal, is approximately 3 miles from the airport and best accessed by car. Additionally, Middletown Station, a metro station, is around 2.3 miles away and typically reached by car.

Kansas City to San Diego Flights

The cheapest times to fly from Kansas City to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Kansas City to San Diego are during the month of January. You can find some of the cheapest flights from Kansas City to San Diego with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Kansas City to San Diego

Sunday is one of the best days to book for cheap flights from Kansas City to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Kansas City to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Kansas City to San Diego in 2026. You can also book with separate airlines for your outbound and return journeys, from $95 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Kansas City to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Kansas City to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.