Question 1

How popular is this San Diego to St. Louis flight route?

Accepted Answer

Flights from San Diego to Lambert-St Louis have been viewed 7 times in the past calendar month.

Question 2

What are the cheapest airlines flying from San Diego to St. Louis round-trip?

Accepted Answer

Cheapflights users have booked flights from San Diego to St. Louis round-trip from $274. Other airlines that can offer you cheap pricing are United Airlines, from $277, and Spirit Airlines, from $292. Frontier is priced at 21% lower than the current average price of a flight leaving 3 months from now.

Question 3

What are the cheapest airlines to fly from San Diego to St. Louis one-way?

Accepted Answer

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $81. Users have also found prices from $139 and $172 on Delta and Alaska Airlines, respectively.

Question 4

How far ahead should I book a flight from San Diego to St. Louis?

Accepted Answer

The best time to book flights from San Diego to St. Louis is 66 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Question 5

What is the cheapest month to book a flight from San Diego to St. Louis?

Accepted Answer

Currently, August is the cheapest month in which you can book a flight from San Diego to St. Louis (average of $311). Flying from San Diego to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 6

What is the cheapest day to fly from San Diego to St. Louis?

Accepted Answer

Travelers seeking maximum savings on their San Diego to St. Louis flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Question 9

What are the cheapest flights from San Diego to St. Louis?

Accepted Answer

Looking for the cheapest flight from San Diego to St. Louis? While on average our users pay $393, our data indicates the cheapest price to be $188. The most popular route (San Diego - Lambert-St Louis), is priced around $192.

Question 10

What are the most popular airlines that fly from San Diego to St. Louis?

Accepted Answer

American Airlines, Delta and Frontier are the most popular airlines when flying from San Diego to St. Louis.

Question 11

Where are the most common layover locations when flying from San Diego to St. Louis?

Accepted Answer

Of the flights from San Diego to St. Louis that have layovers, most of them stop in Phoenix.

Question 12

Where are the least popular layover locations for San Diego to St. Louis flights?

Accepted Answer

San Diego to St. Louis flights have a layover in Denver the least frequently.

Question 13

What are some popular things to do or see while on a layover in Phoenix?

Accepted Answer

Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall are currently the most popular points of interest in Phoenix at the moment. Those on a layover in Phoenix interested in visiting Chase Field, Desert Ridge Marketplace, or Phoenix Symphony Hall can do so by traveling 4.0 mi, 16.7 mi, and 4.3 mi, respectively from Phoenix Sky Harbor Intl. Travelers can book a car rental at Phoenix Sky Harbor Intl for about $59 per day to make their sightseeing more efficient.

Question 14

What is the cheapest day to fly round-trip from San Diego to St. Louis?

Accepted Answer

Users have found that flying from San Diego to St. Louis on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

Question 15

How far in advance should I book a flight from San Diego to St. Louis?

Accepted Answer

Travelers have found it’s best to book a flight 48 days in advance to save up to 96% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 48 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from San Diego to St. Louis 1-2 weeks in advance for as low as $308, or $533 for flights within the next 24 hours.

Question 16

What is the cheapest month to fly from San Diego to St. Louis?

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to St. Louis. Flights to St. Louis from San Diego in August are about $349 on average during August, but can be found for as low as $207.

Question 17

What is the cheapest time of day to fly from SAN to STL?

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from San Diego to St. Louis in the evening. If you’re flexible enough to do this you can expect to save up to 59% on your trip compared to booking a flight in the afternoon.

Question 18

E

Accepted Answer

Most accurate provider: When it comes to deals on San Diego-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-St. Louis flight searches over the past month and is updated monthly.

Question 19

E

Accepted Answer

Most trusted provider: When it comes to deals on San Diego-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Question 20

What airports do I use to fly from San Diego to St. Louis?

Accepted Answer

To fly from San Diego to St. Louis, you need to book a flight from San Diego (SAN) to Lambert-St Louis (STL). Nonstop flights to Lambert-St Louis from San Diego take 3h 25m on average. When it comes time to book airfare, you have a few options: there is 1 outbound flight from San Diego to Lambert-St Louis offered by 5 different airlines.

Question 21

Can I find deals for flights from San Diego to St. Louis that include hotel bookings?

Accepted Answer

Yes. In addition to deals on San Diego to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 22

How can I find direct flights from San Diego to St. Louis?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to St. Louis.

Question 23

Can I find deals for business class flights from San Diego to St. Louis?

Accepted Answer

Yes. Cheapflights offers flight deals from San Diego to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$262 (Orbitz)
One-way from	$81 (Mytrip)
Popular in	December
Cheapest in	August
Average price	$392
Good round-trip deal	$416 or less
Good one-way deal	$229 or less

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
Priceline	Price Accuracy2 stars	Trust Score*3 stars
CheapOair	Price Accuracy2 stars	Trust Score*2 stars
Flightnetwork	Price Accuracy-	Trust Score*3 stars

$61+ Cheap flights from San Diego to St. Louis (SAN - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Diego to St. Louis with Cheapflights

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The best prices from San Diego to Lambert-St Louis are usually found in August or May, booked 66 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from San Diego to St. Louis

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Find flight deals from San Diego to St. Louis

Cheapest flights from San Diego to St. LouisExplore the most affordable flight options available from San Diego to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.

Explore the most affordable flight options available from San Diego to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.

Find flights from San Diego to St. Louis within your budget

Compare providers for flights from San Diego to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to St. Louis in January.

Best time to book a flight from San Diego to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from San Diego with our price prediction graph.

Travel insights for flights from San Diego to St. Louis

Get recent, data-driven insights about flights from San Diego to St. Louis including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from San Diego to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from San Diego to St. Louis. Price data was last updated on January 17, 2025.

What is the cheapest month to book a flight from San Diego to St. Louis?

What is the cheapest time of day to fly from SAN to STL?

Find hourly flight availability from San Diego to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 23, 2025.

What is the cheapest day to fly from San Diego to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from San Diego to St. Louis. Price data was last updated on January 21, 2025.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

To help decide which airline to fly from San Diego to St. Louis, see what other customers have to say about Alaska Airlines and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Cheapest flights from San Diego to St. Louis
Explore the most affordable flight options available from San Diego to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.