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

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The best prices from Lambert-St Louis Intl to San Diego are usually found in August or September, booked 41 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

How to find the cheapest flight from
Lambert-St Louis Intl (STL) to San Diego (SAN)

All the information you need to plan the best STL to SAN flight in 2021: compare Lambert-St Louis Intl to San Diego flight prices with the expected peak season, weather and rainfall in San Diego.
STL - SAN
Price
$243 - $345
SAN
Temperature
66.2 - 80.6 °F
SAN
Rainfall
0 - 2.8 inches

Popular in

March

High demand for flights, 17% potential price rise

Cheapest in

August

Best time to find cheap flights, 15% potential price drop

Round-trip from

$243

From Lambert-St Louis Intl to San Diego

One-way from

$159

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

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Lambert-St Louis Intl to San Diego?

Saturday flights are found to be more expensive to fly from Lambert-St Louis Intl to San Diego. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Diego.

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

Travelers have found it’s best to book a flight 17 days in advance to save up to 27% 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 17 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 Lambert-St Louis Intl to San Diego 1-2 weeks in advance for as low as $73, or $98 for flights within the next 24 hours.

What is the cheapest month to fly from Lambert-St Louis Intl to San Diego?

Flights from Lambert-St Louis Intl to San Diego lean towards being more expensive in December. Prices are generally better when you fly from Lambert-St Louis Intl to San Diego in July, with the cheapest ticket starting at $44.

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

It’s optimal to fly from Lambert-St Louis Intl to San Diego in the evening. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the afternoon.

Cheap flights from Lambert-St Louis Intl to San Diego in May, June 2021

The best prices found for STL to SAN flights for May, June
9 Jun - 14 Jun
$176pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
9 Jun - 14 Jun
$179pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
STL
Lambert-St Louis
9 Jun - 11 Jun
$183pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis

Lambert-St Louis Intl to San Diego 2021 flight deals

Cheap flights to San Diego from Lambert-St Louis Intl found for this year
9 Jun - 14 Jun
$176pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
9 Jun - 14 Jun
$179pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
STL
Lambert-St Louis
9 Jun - 11 Jun
$183pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis

Last minute flights from Lambert-St Louis Intl to San Diego

Late deals on round-trip flights to San Diego from Lambert-St Louis Intl, departing today and this week
25 May - 7 Jun
$239pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
SAN
San Diego
SAN
San Diego
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
28 May - 31 May
$259pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
23 May - 29 May
$285pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
STL
Lambert-St Louis

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

The cheapest one-way flights from Lambert-St Louis Intl to San Diego
7:09 am - 4:29 pm
Spirit Airlines
2 Stops
35h 20m
STL - SAN
Spirit Airlines
$159
Gotogate
6:25 pm - 7:26 pm
Frontier
1 Stop
27h 01m
STL - SAN
Frontier
$173
Kiwi.com
6:00 am - 1:15 pm
Sun Country Air
1 Stop
9h 15m
STL - SAN
Sun Country Air
$178
mytrip.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Lambert-St Louis Intl</span> to <span class="emphasized">San Diego</span> flights.

Flight FAQs

From Lambert-St Louis Intl to San Diego

Are flight prices decreasing from St Louis to San Diego due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both St Louis and San Diego for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Lambert-St Louis to San Diego to control the spread of COVID-19?

Alaska Airlines is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. New policies for travelers booking flights from Lambert-St Louis to San Diego include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

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

Due to the rapidly changing circumstances due to COVID-19, airlines like Alaska Airlines, American Airlines, and United Airlines flying from Lambert-St Louis to San Diego have implemented new flexible cancellation policies.

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

If you book a flight from St. Louis to San Diego, you will be flying from Lambert-St Louis to San Diego. Flights to San Diego (SAN) from Lambert-St Louis (STL) take 6h 14m for a nonstop flight. There is 1 flight from Lambert-St Louis to San Diego per day from 7 airlines.

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

Yes, there are multiple flights from Lambert-St Louis Intl to San Diego for under $200. The cheapest flight booked recently is on Multiple Airlines for just $176, but on average you can expect to pay $206.

Are there nonstop flights from Lambert-St Louis Intl to San Diego for under $200 on Cheapflights?

There are no nonstop flights from Lambert-St Louis Intl to San Diego, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Lambert-St Louis Intl to San Diego for under $300?

There are currently 20+ open flights from Lambert-St Louis Intl to San Diego within the next 7 days for less than $300.

How popular is this flight route?

The Lambert-St Louis to San Diego flight path was viewed by 105 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Does it rain more in St Louis or San Diego?

St Louis will have greater rainfall in 0 compared to San Diego over the next 18 days.

Is St Louis weather warmer or cooler than San Diego?

You can imagine temperatures to be in the 90 °F range in July. The weather in San Diego is generally colder than St Louis's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long is the flight from Lambert-St Louis Intl to San Diego?

American Airlines, Spirit Airlines, and Frontier can get you from Lambert-St Louis Intl to San Diego in just under 7h 32m. Your travel time can differ by up to 3h 14m. Both multi-stop and nonstop flights can be found to your destination and back.

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

Frontier, at $191, was found to be the cheapest airline from Lambert-St Louis Intl to San Diego.Alternate airlines to your destination round-trip include Spirit Airlines and American Airlines. Frontier is priced at 32% lower than the current average price of a flight leaving 3 months from now.

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

The cheapest airlines for a one-way flight from Lambert-St Louis Intl to San Diego are Frontier ($94), Spirit Airlines ($119), and United Airlines ($162).

Alternative routes for Lambert-St Louis Intl to San Diego

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

Destination information for San Diego

Things to know before you go - useful duration and weather info for your trip from Lambert-St Louis Intl to San Diego.
Average temperature for May in San Diego
71.6 °F
Avg rainfall for May in San Diego
0.2 ″

Airports servicing St. Louis

Airports servicing San Diego

Top 6 airlines flying from Lambert-St Louis Intl to San Diego

The chart below displays the airlines Cheapflights users traveling from Lambert-St Louis Intl to San Diego choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$118 $242 No cancel fee 62%
Delta
$117 $258 No cancel fee N/A
United Airlines
$117 $258 No cancel fee 69%
Alaska Airlines
$128 $290 No cancel fee 75%
American Airlines
$122 $301 No cancel fee 71%
Southwest
$281 $490 No cancel fee 63%

Hourly flight availability from Lambert-St Louis Intl to San Diego

See what time of day planes typically take off from Lambert-St Louis Intl towards San Diego.
Afternoon Noon to 6 PM 75% of STL to SAN departures
Morning 6 AM to noon 25% of STL to SAN departures
Early morning Midnight to 6 AM 0% of STL to SAN departures
Evening 6 PM to midnight 0% of STL to SAN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Lambert-St Louis Intl to San Diego
See how many times per day planes take to the skies headed from Lambert-St Louis Intl to San Diego.
Sunday
1 daily flight
Monday
1 daily flight
Tuesday
2 daily flights
Wednesday
2 daily flights
Thursday
1 daily flight
Friday
1 daily flight
Saturday
0 flights
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