Cheap flights from St. Louis to San Diego (STL - SAN) from $30

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — SAN
abr. 16 — abr. 231

The best prices from Lambert-St Louis to San Diego are usually found in September or January, booked 28 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from St. Louis to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated abril 11, 2024.

Popular in

March

Cheapest in

September

Round-trip from

$288

One-way from

$94
High demand for flights, 25% potential price rise
Best time to find cheap flights, 29% potential price drop
From Lambert-St Louis to San Diego
One-way flight from Lambert-St Louis to San Diego

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

Flying to your destination on a Thursday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to San Diego. Check prices with Cheapflights to find a great deal for your trip.

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

Travelers have found it’s best to book a flight 29 days in advance to save up to 71% 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 29 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 St. Louis to San Diego 1-2 weeks in advance for as low as $258, or $456 for flights within the next 24 hours.

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

The best pricing can be found in the month of September. Prices to San Diego from St. Louis average $422. You can even find prices in September for less than $422, as users have found deals to San Diego from as low as $149. The month of March appears to be one of the more expensive times to travel to San Diego from St. Louis. Flying in the targeted month can save you up to 32%.

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

Unlike at noon, when flights are generally more expensive, you can save up to 49% on flights from St. Louis to San Diego by exploring options for tickets in the evening.

Cheap Frontier flights from St. Louis to San Diego

Explore cheap flight options specifically provided by Frontier for the route between St. Louis and San Diego. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,194,136 searches. Data last updated abril 11, 2024.
Take a peek at the cheapest Frontier flights we've detected traveling from St. Louis to San Diego. Come back soon if you're not finding the exact deal you're looking for.
mar. 5/710:59 pmSTL - SAN
1 stop10h 35mFrontier
mar. 5/1410:05 pmSAN - STL
1 stop10h 13mFrontier
Deal found 4/10$90
mié. 5/87:51 pmSTL - SAN
1 stop14h 03mFrontier
sáb. 5/118:44 amSAN - STL
1 stop23h 34mFrontier
Deal found 4/11$100
mié. 4/248:04 pmSTL - SAN
1 stop13h 59mFrontier
mié. 5/19:32 pmSAN - STL
1 stop10h 46mFrontier
Deal found 4/10$104
jue. 5/910:59 pmSTL - SAN
1 stop10h 55mFrontier
lun. 5/139:32 pmSAN - STL
1 stop10h 37mFrontier
Deal found 4/10$110
vie. 5/37:51 pmSTL - SAN
1 stop14h 03mFrontier
lun. 5/69:32 pmSAN - STL
1 stop22h 27mFrontier
Deal found 4/10$111
sáb. 4/277:51 pmSTL - SAN
1 stop13h 12mFrontier
mié. 5/19:32 pmSAN - STL
1 stop10h 46mFrontier
Deal found 4/10$113
mié. 4/248:04 pmSTL - SAN
1 stop17h 33mFrontier
sáb. 5/42:19 pmSAN - STL
1 stop22h 10mFrontier
Deal found 4/10$114
jue. 5/165:01 pmSTL - SAN
1 stop28h 20mFrontier
dom. 5/1911:38 amSAN - STL
1 stop20h 35mFrontier
Deal found 4/10$120
sáb. 5/188:04 pmSTL - SAN
1 stop13h 00mFrontier
sáb. 6/18:21 pmSAN - STL
1 stop11h 52mFrontier
Deal found 4/10$121

Cheap Spirit Airlines flights from St. Louis to San Diego

Explore cheap flight options specifically provided by Spirit Airlines for the route between St. Louis and San Diego. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,194,136 searches. Data last updated abril 11, 2024.
To aid your search, here are some of the cheapest Spirit Airlines flights we've found from St. Louis to San Diego. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
sáb. 5/1811:39 amSTL - SAN
2 stops23h 35mSpirit Airlines
mar. 5/219:12 pmSAN - STL
1 stop11h 34mSpirit Airlines
Deal found 4/11$169
vie. 5/244:05 pmSTL - SAN
1 stop19h 09mSpirit Airlines
mar. 5/289:12 pmSAN - STL
1 stop11h 34mSpirit Airlines
Deal found 4/11$181
mar. 5/710:34 amSTL - SAN
3 stops24h 40mSpirit Airlines
mar. 5/149:12 pmSAN - STL
1 stop11h 34mSpirit Airlines
Deal found 4/10$184
vie. 5/244:05 pmSTL - SAN
1 stop21h 20mSpirit Airlines
mar. 5/286:15 amSAN - STL
2 stops26h 31mSpirit Airlines
Deal found 4/11$200
mar. 5/282:35 pmSTL - SAN
2 stops19h 16mSpirit Airlines
mar. 6/49:12 pmSAN - STL
1 stop11h 33mSpirit Airlines
Deal found 4/11$205
mar. 5/282:35 pmSTL - SAN
2 stops19h 16mSpirit Airlines
mar. 6/46:15 amSAN - STL
2 stops26h 30mSpirit Airlines
Deal found 4/11$224
jue. 5/167:30 pmSTL - SAN
2 stops29h 51mSpirit Airlines
dom. 5/1911:13 amSAN - STL
1 stop26h 01mSpirit Airlines
Deal found 4/11$232
mar. 5/710:34 amSTL - SAN
3 stops24h 40mSpirit Airlines
mar. 5/1410:04 amSAN - STL
2 stops22h 42mSpirit Airlines
Deal found 4/10$237
jue. 5/166:19 pmSTL - SAN
3 stops31h 02mSpirit Airlines
dom. 5/196:15 amSAN - STL
2 stops30h 59mSpirit Airlines
Deal found 4/11$249

Cheap St. Louis to San Diego flights in April & May 2024

Find cheap flight options from St. Louis to San Diego specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,194,136 searches. Prices were last updated on abril 11, 2024.
These are some of the most attractive deals on flights from St. Louis to San Diego in 2024. Check back in a little while for more flight options.
vie. 4/197:51 pmSTL - SAN
1 stop14h 03mFrontier
dom. 4/219:32 pmSAN - STL
1 stop10h 46mFrontier
Deal found 4/10$161
sáb. 4/2712:39 pmSTL - SAN
2 stops12h 27mMultiple Airlines
dom. 4/2810:25 pmSAN - STL
1 stop15h 47mMultiple Airlines
Deal found 4/11$163
vie. 4/265:35 pmSTL - SAN
1 stop16h 57mFrontier
mié. 5/18:34 amSAN - STL
2 stops10h 05mFrontier
Deal found 4/10$167
mar. 5/73:55 pmSTL - SAN
3 stops30h 27mMultiple Airlines
mar. 5/149:12 pmSAN - STL
1 stop11h 34mMultiple Airlines
Deal found 4/9$168
lun. 4/158:04 pmSTL - SAN
1 stop12h 56mFrontier
mié. 4/1711:06 amSAN - STL
1 stop7h 33mFrontier
Deal found 4/10$169
jue. 5/910:59 pmSTL - SAN
1 stop9h 53mMultiple Airlines
lun. 5/138:26 pmSAN - STL
2 stops17h 24mMultiple Airlines
Deal found 4/10$170
jue. 5/211:38 amSTL - SAN
1 stop11h 25mFrontier
dom. 5/58:23 amSAN - STL
1 stop23h 24mFrontier
Deal found 4/10$174
jue. 5/3011:06 pmSTL - SAN
1 stop10h 04mFrontier
mié. 6/58:24 pmSAN - STL
1 stop12h 20mFrontier
Deal found 4/11$178
jue. 5/165:01 pmSTL - SAN
2 stops16h 09mFrontier
dom. 5/196:19 pmSAN - STL
1 stop13h 54mFrontier
Deal found 4/9$179

St. Louis to San Diego 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and San Diego in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,194,136 searches. Data last updated abril 11, 2024.
These are some of the most attractive deals on flights from St. Louis to San Diego in 2024. Check back in a little while for more flight options.
vie. 4/197:51 pmSTL - SAN
1 stop14h 03mFrontier
dom. 4/219:32 pmSAN - STL
1 stop10h 46mFrontier
Deal found 4/10$161
sáb. 4/2712:39 pmSTL - SAN
2 stops12h 27mMultiple Airlines
dom. 4/2810:25 pmSAN - STL
1 stop15h 47mMultiple Airlines
Deal found 4/11$163
vie. 4/265:35 pmSTL - SAN
1 stop16h 57mFrontier
mié. 5/18:34 amSAN - STL
2 stops10h 05mFrontier
Deal found 4/10$167
mar. 5/73:55 pmSTL - SAN
3 stops30h 27mMultiple Airlines
mar. 5/149:12 pmSAN - STL
1 stop11h 34mMultiple Airlines
Deal found 4/9$168
lun. 4/158:04 pmSTL - SAN
1 stop12h 56mFrontier
mié. 4/1711:06 amSAN - STL
1 stop7h 33mFrontier
Deal found 4/10$169
jue. 5/910:59 pmSTL - SAN
1 stop9h 53mMultiple Airlines
lun. 5/138:26 pmSAN - STL
2 stops17h 24mMultiple Airlines
Deal found 4/10$170
sáb. 6/18:04 pmSTL - SAN
1 stop13h 00mFrontier
lun. 6/38:21 pmSAN - STL
1 stop11h 52mFrontier
Deal found 4/11$173
jue. 5/211:38 amSTL - SAN
1 stop11h 25mFrontier
dom. 5/58:23 amSAN - STL
1 stop23h 24mFrontier
Deal found 4/10$174
jue. 9/267:29 pmSTL - SAN
1 stop26h 12mFrontier
dom. 9/296:02 pmSAN - STL
1 stop14h 16mFrontier
Deal found 4/9$177

St. Louis to San Diego flights leaving soon

Find last-minute flight options from St. Louis to San Diego for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,194,136 searches. Data last updated abril 11, 2024.
Have a look at some of the last-minute flights available departing from St. Louis to San Diego. To prevent any unwanted surprises, users should verify their flight info before booking.
vie. 4/197:51 pmSTL - SAN
1 stop14h 03mFrontier
dom. 4/219:32 pmSAN - STL
1 stop10h 46mFrontier
Deal found 4/10$161
vie. 4/197:51 pmSTL - SAN
1 stop14h 03mFrontier
lun. 4/229:32 pmSAN - STL
1 stop10h 46mFrontier
Deal found 4/10$184
sáb. 4/2012:59 pmSTL - SAN
2 stops12h 07mMultiple Airlines
mar. 4/3010:05 pmSAN - STL
1 stop10h 13mMultiple Airlines
Deal found 4/10$191
mar. 4/1610:59 pmSTL - SAN
1 stop10h 35mFrontier
sáb. 4/209:14 pmSAN - STL
1 stop11h 04mFrontier
Deal found 4/10$208
vie. 4/197:16 pmSTL - SAN
2 stops21h 49mFrontier
lun. 4/229:32 pmSAN - STL
1 stop10h 46mFrontier
Deal found 4/10$240
vie. 4/197:51 pmSTL - SAN
1 stop14h 03mFrontier
dom. 4/219:32 pmSAN - STL
2 stops21h 31mFrontier
Deal found 4/10$257
dom. 4/217:00 amSTL - SAN
3 stops29h 42mMultiple Airlines
mar. 4/238:00 pmSAN - STL
1 stop12h 43mMultiple Airlines
Deal found 4/10$263
mar. 4/1610:59 pmSTL - SAN
1 stop10h 35mMultiple Airlines
sáb. 4/206:26 pmSAN - STL
2 stops18h 03mMultiple Airlines
Deal found 4/10$270
sáb. 4/2011:39 amSTL - SAN
3 stops25h 03mSpirit Airlines
mar. 4/308:00 pmSAN - STL
1 stop12h 43mSpirit Airlines
Deal found 4/10$282

One-way flights to San Diego from St. Louis

Search for one-way flight options from St. Louis to San Diego. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,194,136 searches. Data last updated abril 11, 2024.
Users in need of a one-way flight from St. Louis to San Diego can choose from these deals. Users in need of a round-trip flight from St. Louis to San Diego instead should update the search form at the top of page.
mié. 5/111:33 amSTL - SAN
1 stop10h 48mSpirit Airlines
Deal found 4/11$30
mié. 5/111:33 amSTL - SAN
1 stop10h 48mSpirit Airlines
Deal found 4/10$32
sáb. 5/48:04 pmSTL - SAN
1 stop13h 29mFrontier
Deal found 4/10$55
mié. 4/1711:33 amSTL - SAN
1 stop10h 48mSpirit Airlines
Deal found 4/9$60
vie. 5/104:05 pmSTL - SAN
1 stop9h 16mSpirit Airlines
Deal found 4/10$64
jue. 4/2510:59 pmSTL - SAN
1 stop10h 55mFrontier
Deal found 4/10$65
vie. 5/107:51 pmSTL - SAN
1 stop14h 03mFrontier
Deal found 4/11$66
sáb. 4/207:51 pmSTL - SAN
1 stop13h 12mFrontier
Deal found 4/11$71
mié. 4/1711:33 amSTL - SAN
2 stops25h 09mSpirit Airlines
Deal found 4/9$72

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

Customize your flight search to find flights from St. Louis to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,194,136 searches. Data last updated abril 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$90 - $236

Route

Depart

Return

Price

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

mar. 5/7

1 stop10h 35m

San Diego

mar. 5/14

1 stop10h 13m

$90

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

mar. 5/7

1 stop10h 35m

San Diego

mar. 5/14

1 stop11h 34m

$91

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

mié. 5/8

1 stop14h 03m

San Diego

sáb. 5/11

1 stop23h 34m

$100

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

mié. 4/24

1 stop13h 59m

San Diego

mié. 5/1

1 stop10h 46m

$104

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

jue. 5/9

1 stop10h 55m

San Diego

lun. 5/13

1 stop10h 37m

$110

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

vie. 5/3

1 stop14h 03m

San Diego

lun. 5/6

1 stop22h 27m

$111

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

mié. 5/8

1 stop13h 59m

San Diego

mié. 5/15

2 stops17h 55m

$134

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

sáb. 5/18

2 stops23h 35m

San Diego

mar. 5/21

1 stop11h 34m

$169

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

mié. 7/3

1 stop7h 20m

San Diego

sáb. 7/6

1 stop6h 34m

$236

Flights are sorted by cheapest first

Deals found on 4/10

When is the best time to book a flight from St. Louis to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to San Diego. Price data was last updated on January 28, 2024.
To ensure you get the cheapest price possible for a flight from St. Louis to San Diego, you should look to book at least 28 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

When is the cheapest time to fly from St. Louis to San Diego?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to San Diego. Price data was last updated on April 7, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to San Diego flight should consider departing on Sunday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to San Diego by month

Plan your trip from St. Louis to San Diego by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to San Diego is currently $57 while a round-trip flight costs $127. Price data was last updated on April 7, 2024.

Currently, October is the cheapest month in which you can book a flight from St. Louis to San Diego (average of $288). Flying from St. Louis to San Diego in June is currently the most expensive (average of $368). 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.

January

$292

February

$297

March

$339

April

$316

May

$320

June

$368

July

$367

August

$313

September

$298

October

$288

November

$334

December

$305

Temperature and rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average temperature and rainfall totals by month.

SAN

Temperature

57.2 - 71.6 °F

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated abril 11, 2024.
Peruse reviews from past customers who have flown with Frontier, Spirit Airlines and Delta from St. Louis to San Diego to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,265 reviews

Boarding

8.3

Overall

8.2

Comfort

8.1

Food

7.4

Crew

8.8

Entertainment

7.9

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

Southwest
8.2
Very good
6,265 reviews
Southwest
8.2
Very good
6,265 reviews

Boarding

8.3

Overall

8.2

Comfort

8.1

Food

7.4

Crew

8.8

Entertainment

7.9

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

8.1
Very good
9,065 reviews
Southwest
8.2
Very good
6,265 reviews

Boarding

8.3

Overall

8.2

Comfort

8.1

Food

7.4

Crew

8.8

Entertainment

7.9

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

8.1
Very good
11,206 reviews
Southwest
8.2
Very good
6,265 reviews

Boarding

8.3

Overall

8.2

Comfort

8.1

Food

7.4

Crew

8.8

Entertainment

7.9

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

7.4
Good
11,391 reviews
Southwest
8.2
Very good
6,265 reviews

Boarding

8.3

Overall

8.2

Comfort

8.1

Food

7.4

Crew

8.8

Entertainment

7.9

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

7.3
Good
15,011 reviews
Southwest
8.2
Very good
6,265 reviews

Boarding

8.3

Overall

8.2

Comfort

8.1

Food

7.4

Crew

8.8

Entertainment

7.9

Reviews

1 / 10

The flight attendant on the flight was extremely unprofessional and obnoxious. He treated the entire plane as if we were on a seventh grade camping trip. He thought he was funny but was actually rude to us while we were on the ground waiting to continue to our final stop. It was like being stuck with a bad comedian for four solid hours. We flew from Chicago to Long Beach to Reno over 5 hours and they did not have any food other then graham crackers. Because of being delayed no one had time to get food in the airport between flights. Terrible experience and Southwest should look into this crew member.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • 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 7h 09m for a nonstop flight. There is 1 flight from Lambert-St Louis to San Diego per day from 6 airlines.

  • Can I find flights from St. Louis to San Diego for under $100 on Cheapflights?

    Yes, there are multiple flights from St. Louis to San Diego for under $100. The cheapest flight booked recently is on Frontier for just $90, but on average you can expect to pay $122.

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

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

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

    Flying on Frontier is currently your cheapest option to San Diego, with prices starting at $90. Another option worth looking into is Spirit Airlines, starting at $169 round trip. You may be able to fly from St. Louis to San Diego for 78% less than the average price by searching for these airlines.

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

  • What does STL to SAN mean?

    STL and SAN are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to SAN refers to a flight route from Lambert-St Louis Airport to San Diego Airport.

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

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

    The majority of Denver visitors spend their time at Coors Field, 16th Street Mall, and Civic Center Park. Travelers on a layover in Denver can visit Coors Field, 16th Street Mall, and Civic Center Park, by traveling 18.4 mi, 18.7 mi, and 18.7 mi, respectively after landing at Denver Intl. Travelers can rent a car at Denver Intl for an average daily rate of $54 to make sightseeing during their layover a little easier.

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

  • Can I find deals for flights from St. Louis to San Diego that include extra baggage allowance?

    The amount of baggage you can bring depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to San Diego with specific airlines?

    Yes, Cheapflights allows you to browse and filter flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to see available direct flights.

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

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

  • Can I find deals for flights from St. Louis to San Diego that allow pets onboard?

    Many airlines do offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to San Diego?

    Yes, you can often find last-minute deals on St. Louis to San Diego flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to San Diego flight deals updated?

    The St. Louis to San Diego flight deals you see on this page were last updated on 4/11.

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Alternative routes for St. Louis to San Diego
See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from St. Louis to San Diego

Discover the top 6 airlines that operate flights from St. Louis to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,194,136 searches. Data last updated abril 11, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$104Average$209FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$133Average$262FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$203Average$443FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$251Average$398FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$298Average$438FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest$617Average$718FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Search flights from St. Louis to San Diego by cabin class

Find flights from St. Louis to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from St. Louis to San Diego

Find hourly flight availability from St. Louis to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 11, 2024.
16%of flight departuresEarly morningMidnight to 6 am
38%of flight departuresMorning6 am to noon
23%of flight departuresAfternoonNoon to 6 pm
23%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from St. Louis to San Diego

Explore weekly flight availability from St. Louis to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated abril 11, 2024.
Sunday3daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday1daily flight

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How does Cheapflights help users find flights from St. Louis to San Diego?

When you search for this flight from St. Louis to San Diego, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to San Diego?

Cheapflights helps you find that perfect flight to San Diego from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from St. Louis to San Diego with no change fees?

Yes! Cheapflights helps users easily find flights from St. Louis to San Diego with no change fees.

Can Cheapflights notify me if prices for flights from St. Louis to San Diego become cheaper?

Not ready to book yet? You can track prices for flights from St. Louis to San Diego on Cheapflights with our Price Alert feature and get notified when better prices are available.

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