St. Louis

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

The best prices from San Diego to Lambert-St Louis are usually found in August or June, booked 53 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

How to find the cheapest flight from San Diego to St. Louis

All the information you need to plan the best SAN to STL flight in 2022: compare San Diego to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.

SAN - STL

Price

$234 - $399

STL

Temperature

32 - 80.6 °F

STL

Precipitation

2.2 - 4.7 inches

Popular in

December

High demand for flights, 27% potential price rise

Cheapest in

August

Best time to find cheap flights, 20% potential price drop

Round-trip from

$234

From San Diego to Lambert-St Louis

One-way from

$91

One-way flight from San Diego to Lambert-St Louis

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

Users have found that flying from San Diego to St. Louis on a Sunday 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.

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

Travelers have found it’s best to book a flight 52 days in advance to save up to 32% 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 52 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 $296, or $352 for flights within the next 24 hours.

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

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 $293 on average during August, but can be found for as low as $149.

When is the cheapest time to fly from San Diego to St. Louis (SAN - STL)?

A simple way to save on the total cost of your ticket is to fly from San Diego to St. Louis in the afternoon. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight at noon.

Cheap flights from San Diego to St. Louis in January, February 2022

The best prices found for SAN to STL flights for January, February
Feb 8 - Mar 1
SAN

San Diego

STL

Lambert-St Louis

1 stop

7h 24m
STL

Lambert-St Louis

SAN

San Diego

1 stop

14h 08m
$128

Frontier

View Deal

Deal found 1/25/22

Feb 9 - Feb 14
SAN

San Diego

STL

Lambert-St Louis

1 stop

9h 17m
STL

Lambert-St Louis

SAN

San Diego

1 stop

21h 48m
$129

Frontier

View Deal

Deal found 1/25/22

Feb 18 - Feb 21
SAN

San Diego

STL

Lambert-St Louis

1 stop

17h 12m
STL

Lambert-St Louis

SAN

San Diego

1 stop

24h 55m
$130

Spirit Airlines

View Deal

Deal found 1/26/22

San Diego to St. Louis 2022 flight deals

Cheap flights to St. Louis from San Diego found for this year
Apr 28 - May 2
SAN

San Diego

STL

Lambert-St Louis

1 stop

6h 10m
STL

Lambert-St Louis

SAN

San Diego

1 stop

16h 07m
$123

Spirit Airlines

View Deal

Deal found 1/26/22

Feb 8 - Mar 1
SAN

San Diego

STL

Lambert-St Louis

1 stop

7h 24m
STL

Lambert-St Louis

SAN

San Diego

1 stop

14h 08m
$128

Frontier

View Deal

Deal found 1/25/22

Feb 9 - Feb 14
SAN

San Diego

STL

Lambert-St Louis

1 stop

9h 17m
STL

Lambert-St Louis

SAN

San Diego

1 stop

21h 48m
$129

Frontier

View Deal

Deal found 1/25/22

Non-stop flights to St. Louis from San Diego

Save time with San Diego to St. Louis direct flight deals
Feb 8 - Mar 1
SAN

San Diego

STL

Lambert-St Louis

Nonstop

6h 55m
STL

Lambert-St Louis

SAN

San Diego

Nonstop

6h 20m
$420

Spirit Airlines

View Deal

Deal found 1/25/22

Last minute flights from San Diego to St. Louis

Late deals on return flights to St. Louis from San Diego, departing today and this week
Feb 5 - Feb 7
SAN

San Diego

STL

Lambert-St Louis

1 stop

15h 13m
STL

Lambert-St Louis

SAN

San Diego

1 stop

18h 12m
$145

Multiple Airlines

View Deal

Deal found 1/27/22

Feb 5 - Feb 7
SAN

San Diego

STL

Lambert-St Louis

1 stop

15h 13m
STL

Lambert-St Louis

SAN

San Diego

1 stop

18h 12m
$150

Multiple Airlines

View Deal

Deal found 1/26/22

Feb 5 - Feb 7
SAN

San Diego

STL

Lambert-St Louis

1 stop

10h 48m
STL

Lambert-St Louis

SAN

San Diego

2 stops

25h 29m
$169

Frontier

View Deal

Deal found 1/27/22

One-way flights to Lambert-St Louis from San Diego

The cheapest one-way flights from San Diego to St. Louis
May 11
SAN

San Diego

STL

Lambert-St Louis

1 stop

6h 10m
$60

Spirit Airlines

View Deal

Deal found 1/24/22

Feb 10
SAN

San Diego

STL

Lambert-St Louis

1 stop

20h 27m
$63

Spirit Airlines

View Deal

Deal found 1/25/22

Feb 11
SAN

San Diego

STL

Lambert-St Louis

1 stop

12h 45m
$67

Frontier

View Deal

Deal found 1/25/22

Related info for your journey

Useful info, stats and facts about San Diego to St. Louis flights.

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

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 5h 53m 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 6 different airlines.

Which airlines flying from San Diego to Lambert-St Louis have flexible cancellations due to COVID-19?

Some of our airline partners flying from San Diego to Lambert-St Louis have new flexible policies in place due to COVID-19. Alaska Airlines, American Airlines, and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Alaska Airlines with this kind of flexibility.

Can I find flights from San Diego to St. Louis for under $200 on Cheapflights?

Yes, there are multiple flights from San Diego to St. Louis for under $200. The cheapest flight booked recently is on Spirit Airlines for just $123, but on average you can expect to pay $150.

Are there nonstop flights from San Diego to St. Louis for under $500 on Cheapflights?

Cheapflights has at least 1 direct flight from San Diego to St. Louis under $500. A good price for a nonstop flight from San Diego to St. Louis is less than $420.

Are there last-minute flights available from San Diego to St. Louis for under $200?

There are currently 20+ open flights from San Diego to St. Louis within the next 7 days for less than $200.

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

Flights from San Diego to Lambert-St Louis have been viewed 46 times in the past calendar month.

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

Cheapflights users have booked flights from San Diego to St. Louis round-trip from $123. Another airline that can offer you cheap pricing is Frontier. Spirit Airlines is priced at 57% lower than the current average price of a flight leaving 3 months from now.

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

For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $60. Users have also found prices from $67 and $108 on Frontier and United Airlines, respectively.

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

Major Airline, American Airlines and Alaska Airlines are the most popular airlines when flying from San Diego to St. Louis.

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

Looking for the cheapest flight from San Diego to St. Louis? While on average our users pay $405, our data indicates the cheapest price to be $84. The most popular route (San Diego - Lambert-St Louis), is priced around $123.

Can I fly to Lambert-St Louis from San Diego right now?

Information is based on travel restrictions for travel to Lambert-St Louis within the United States

Most visitors from San Diego need to provide a negative COVID-19 test result and/or quarantine to enter Lambert-St Louis.

COVID-19 testing requirements
Visitors from San Diego must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from San Diego are not required to quarantine after entering Lambert-St Louis.

Can I fly back to San Diego from Lambert-St Louis?

Returning to San Diego from Lambert-St Louis

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to San Diego.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering San Diego.

Alternative routes for San Diego to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from San Diego to St. Louis

The chart below displays the airlines Cheapflights users traveling from San Diego to St. Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Frontier
Cheapest$94
Average$246
FlexibilityNo cancel fee
On-time62%
COVID-19 safety
Delta
Cheapest$112
Average$327
FlexibilityNo cancel fee
On-timeN/A
COVID-19 safety
American Airlines
Cheapest$118
Average$358
FlexibilityNo cancel fee
On-time71%
COVID-19 safety
United Airlines
Cheapest$124
Average$341
FlexibilityNo cancel fee
On-time69%
COVID-19 safety
Alaska Airlines
Cheapest$129
Average$310
FlexibilityNo cancel fee
On-time75%
COVID-19 safety
Southwest
Cheapest$167
Average$470
FlexibilityNo cancel fee
On-time63%
COVID-19 safety

Hourly flight availability from San Diego to St. Louis

See what time of day planes typically take off from San Diego to St. Louis
0%of flight departuresEarly morningMidnight to 6 am
100%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from San Diego to St. Louis

See how many times per day planes take to the skies headed from San Diego to St. Louis
Sunday2daily flights
Monday2daily flights
Tuesday2daily flights
Wednesday2daily flights
Thursday2daily flights
Friday2daily flights
Saturday0daily flights