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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 Thursday

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

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

$162

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 16% on the cost of your flight, compared to a flight in the afternoon.

Cheap flights from Lambert-St Louis Intl to San Diego in January, February 2021

The best prices found for STL to SAN flights for January, February
14 Feb - 18 Feb
$93pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
STL
Lambert-St Louis
17 Feb - 18 Feb
$98pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
STL
Lambert-St Louis
19 Feb - 21 Feb
$142pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
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
14 Feb - 18 Feb
$93pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
STL
Lambert-St Louis
17 Feb - 18 Feb
$98pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
STL
Lambert-St Louis
3 Mar - 9 Mar
$130pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
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
29 Jan - 31 Jan
$165pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
STL
Lambert-St Louis
29 Jan - 31 Jan
$170pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SAN
San Diego
SAN
San Diego
Frontier
 
1 STOP
STL
Lambert-St Louis
28 Jan - 2 Feb
$237pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Multiple Airlines
     
3 STOPS
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
7:50 am - 9:58 am
Frontier
2 Stops
28h 08m
STL - SAN
Frontier
$162
Gotogate
4:19 am - 2:18 pm
American Airlines
2 Stops
11h 59m
STL - SAN
American Airlines
1:45 pm - 6:27 pm
Multiple Airlines
3 Stops
54h 42m
STL - SAN
Multiple Airlines
$231
CheapFlights

Related info for your journey

Useful info, stats and facts about Lambert-St Louis Intl to San Diego 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 and Delta are some 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.

Can I find flights from Lambert-St Louis Intl to San Diego for under $100 on Cheapflights?

Yes, there are multiple flights from Lambert-St Louis Intl to San Diego for under $100. The cheapest flight booked recently is on Frontier for just $93, but on average you can expect to pay $144.

Are there nonstop flights from Lambert-St Louis Intl to San Diego for under $100 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 $200?

There are currently 19+ open flights from Lambert-St Louis Intl to San Diego within the next 7 days for less than $200.

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 the same amount of rainfall in 1 compared to San Diego over the next 15 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?

Frontier can get you from Lambert-St Louis Intl to San Diego in just under 6h 20m. Your travel time can differ by up to .

What is the cheapest airline to fly from Lambert-St Louis Intl to San Diego round-trip?

Frontier, at $93, was found to be the cheapest airline from Lambert-St Louis Intl to San Diego.. Frontier is priced at 67% 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 ($44), American Airlines ($144), and United Airlines ($276).

Alternative routes for Lambert-St Louis Intl to San Diego

Destination information for San Diego

Things to know before you go. Useful info for your trip from Lambert-St Louis Intl to San Diego
Average temperature for January in San Diego
68.0 °F
Avg rainfall for January in San Diego
2.7 ″

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

Morning 6 AM to noon 100% of STL to SAN departures
Early morning Midnight to 6 AM 0% of STL to SAN departures
Afternoon Noon to 6 PM 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
Sunday
1 daily flight
Monday
1 daily flight
Tuesday
1 daily flight
Wednesday
1 daily flight
Thursday
1 daily flight
Friday
1 daily flight
Saturday
1 daily flight
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