Cheap Flights from St. Louis (STL) to San Diego (MYF)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to San Diego, CA (MYF-Montgomery Field)

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Diego Intl. SAN. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $234
SAN
San Diego Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $234
Select flight to General Abelardo L. Rodriguez Intl. TIJ. Average driving time to city center is 26 minutes. Flights from $346
TIJ
General Abelardo L. Rodriguez Intl.
Average driving time to city center26 min
Flights from $346
Select flight to McClellan-Palomar CLD. Average driving time to city center is 38 minutes. Flights from $451
CLD
McClellan-Palomar
Average driving time to city center38 min
Flights from $451

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to San Diego, CA (MYF-Montgomery Field) cost?
Grab a cheap one-way flight or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to San Diego, CA (MYF-Montgomery Field) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to San Diego, CA (MYF-Montgomery Field)?
Planning your getaway for is a great way to save, as it's the cheapest month for flights between STL and MYF. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to San Diego, CA (MYF-Montgomery Field)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from STL to MYF. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to San Diego, CA (MYF-Montgomery Field)?
There are no daily nonstop flights available from Lambert-St. Louis Intl. Airport (STL) to San Diego, CA (MYF-Montgomery Field). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time at all.
What day of the week has the most flights from STL to MYF?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can change based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to San Diego, CA (MYF-Montgomery Field)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to San Diego, CA (MYF-Montgomery Field) route, aim to travel before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Diego County from Lambert-St. Louis Intl. Airport (STL)?
San Diego Intl. Airport (SAN) is the only airport in San Diego County with direct flights from Lambert-St. Louis Intl. Airport (STL). Explore the available options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to San Diego, CA (MYF-Montgomery Field) last-minute?
Booking your plane ticket from STL to MYF shortly before your getaway is usually more expensive. However, if you're flexible with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a STL to MYF flight and hotel package?
Compared with arranging flights and hotels separately, booking a STL to MYF flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the hassle out of travel planning. Simply pick your flights and choose from our extensive range of hotels, then tailor your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to San Diego, CA (MYF-Montgomery Field)?
If you reserved your STL to MYF flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Montgomery Field
Distance
1549 mi

Book with confidence

Book with confidence

St. Louis to San Diego Flights

The cheapest times to fly from St. Louis 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 St. Louis to San Diego are during the month of . You can find some of the cheapest flights from St. Louis to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to San Diego

Sunday is one of the best days to book for cheap flights from St. Louis 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 St. Louis 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 St. Louis to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 St. Louis 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 St. Louis 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.

 

St. Louis to San Diego Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.