starting at $453
starting at $182
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from San Diego to Saint Louis. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A non-stop flight is the most convenient and comfortable way to fly from San Diego to Saint Louis, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
The route San Diego — Saint Louis is served by several airlines: Southwest Airlines and Frontier Airlines. This gives passengers more freedom in choosing flights. You can consider not only the price but also schedules, baggage policies, and onboard service. Our service compares all offers so you can find tickets from $182 and choose the most convenient option. Thanks to airline competition, you may also find promotional fares or special offers, helping you save even more. Plan your trip in advance and choose the best flights without overpaying.
starting at $453
starting at $182
San Diego — Saint Louis
06/26/2026
Departure
Direct flight
WN3552
starting at $453
There are most likely no direct flights on the San Diego — Saint Louis route
The cheapest one-way flight from San Diego to Saint Louis departs on 06/26/2026, is operated by Frontier Airlines and costs $182
The cheapest roundtrip flight from San Diego to Saint Louis departs on 06/03/2026, is operated by Southwest Airlines and costs $301
Fastest flight from San Diego to Saint Louis takes
There are direct flights on this route 1 day a week: Fr
The distance between San Diego and Saint Louis is 2512km (1557 miles). The time difference between San Diego and Saint Louis is 2h
We couldn't find any special offers for flights from San Diego to Saint Louis
The cheapest flight ticket from San Diego to Saint Louis according to data for the last 48 hours costs $182
Often the best time to buy tickets from San Diego to Saint Louis is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from San Diego to Saint Louis can be found flying in these months: June.
The fastest flights from San Diego to Saint Louis start from 9 hours 53 minutes in the air.
The following airlines operate direct flights on the route San Diego — Saint Louis: Southwest Airlines
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from San Diego to Saint Louis