St Louis to San Diego (STL–SAN) — Airlines, Schedules & Connections

STL Airport Page →
1,554 mi airlines charter/private 9/wk
On-time Some delays Frequent delays
Flight Schedule 10 flights Verified 27m ago
Also flown by charter / private operators: Aerolink Uganda.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
WN4283
WN Southwest
73H
8:10 AM
CDT T2
9:50 AM
PDT
3h 40m
59%
M T W T F S S
Prices
WN2526
WN Southwest
73H
2:30 PM
CDT T2
4:10 PM
PDT
3h 40m
59%
M T W T F S S
Prices
WN2528
WN Southwest
7M8
8:50 PM
CDT T2
10:35 PM
PDT
3h 45m
59%
M T W T F S S
Prices
WN1959
WN Southwest
7S7
9:35 PM
CDT T2
11:20 PM
PDT
3h 45m
59%
M T W T F S S
Prices
WN3760
WN Southwest
7M8
6:30 AM
PDT T1
12:10 PM
CDT
3h 40m
36%
M T W T F S S
Prices
WN2231
WN Southwest
7M8
6:35 AM
PDT T1
12:20 PM
CDT
3h 45m
36%
M T W T F S S
Prices
UA1069
UA United
6:38 AM
PDT
1:11 PM
CDT
4h 33m
20%
M T W T F S S
Prices
WN2075
WN Southwest
7S7
7:05 AM
PDT T1
12:45 PM
CDT
3h 40m
36%
M T W T F S S
Prices
WN3677
WN Southwest
73H
1:20 PM
PDT T1
6:55 PM
CDT
3h 35m
36%
M T W T F S S
Prices
WN3552
WN Southwest
B38M
1:30 PM
PDT T1
7:05 PM
CDT
3h 35m
36%
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
MCI Kansas City 5h 10m WN WN Kansas City (MCI) to San Diego flights
PHX Phoenix 5h 10m AAASWN AAASBA Phoenix (PHX) to San Diego flights
OMA Omaha 5h 15m KIIWN JTLWN Omaha (OMA) to San Diego flights
DAL Dallas 5h 20m EJALXJWN WN Dallas (DAL) to San Diego flights
LAS Las Vegas 5h 25m F9WNY4 ASDLEJA Las Vegas (LAS) to San Diego flights
DEN Denver 5h 30m ACF9UA ACASCM Denver (DEN) to San Diego flights
AUS Austin 5h 50m WN ASWN Austin (AUS) to San Diego flights
LAX Los Angeles 5h 53m AAASCX AAAFAM Los Angeles (LAX) to San Diego flights
DFW Dallas-Fort Worth 5h 53m AAASAY AAASAY Dallas-Fort Worth (DFW) to San Diego flights
SLC Salt Lake City 5h 57m DLKELXJ AFAMAS Salt Lake City (SLC) to San Diego flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
St Louis to San Diego
1 carrier, 9 flights/week nonstop.
1 Airlines 1,554 mi 3h 43m nonstop -2h behind

STL–SAN is served by 1 airline with nonstop service. Southwest Airlines leads the route. The flight covers 1,554 miles in approximately 3h 43m. Beyond nonstop, 1-stop connecting options are also available.

Airline Landscape

All carriers operating nonstop STL–SAN service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
WN Southwest Airlines 9 73H, 7M8, 7S7 3h40-3h45 89%
Aircraft on this route
73H Boeing 737-800 (Winglets) – WN
7M8 Boeing 737 MAX 8 – WN
7S7 Boeing 737 MAX 7 – WN
Alliance coverage
Unaffiliated: WN (9 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, STL to SAN direction.
Mon
1
flight
Tue
1
flight
Wed
1
flight
Thu
1
flight
Fri
1
flight
Sat
2
flights
Sun
2
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
4
Nonstop flights
9
Outbound / wk
10
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for STL to SAN.
1-STOP
One-Stop Connections
56
Hubs
~5h
Fastest
~24h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,671
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
STL → SAN
89%
Generally reliable. Most flights run on time.
Departing
89%
Arriving
84%
Return
SAN → STL
88%
Generally reliable. Most flights run on time.
Departing
88%
Arriving
95%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. STL delays → SAN delays →

Travel Essentials

Practical planning for this route.
Time Difference
-2h
San Diego is 2 hours behind St Louis.
STL: CDT · SAN: PDT

When it's 6:00 PM in St Louis, it's 4:00 PM in San Diego.
Distance & Flight Time
1,554 mi / 2,501 km
Nonstop flight time is approximately 3h 43m gate to gate.

STL–SAN Quick Facts

Key statistics for the St Louis to San Diego route.
Route details
Distance1,554 mi / 2,501 km
Flight time3h 43m
Time difference-2 hours
Airlines (nonstop)1
Weekly flights9 out / 10 return
1-stop connectionsAvailable
Origin: STL
IATA / ICAOSTL / KSTL
TimezoneAmerica/Chicago
Passengers/yr15.6M
Elevation618 ft / 188 m
Destination: SAN
IATA / ICAOSAN / KSAN
TimezoneAmerica/Los_Angeles
Passengers/yr25.6M
Elevation17 ft / 5 m

Frequently Asked Questions

Common questions about STL to SAN flights.
Nonstop flights from St. Louis Lambert International Airport to San Diego International Airport take about 3h 43m gate to gate. The route covers 1,554 miles.
1 airline operates flights from STL to SAN: Southwest Airlines.
This route has daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Kansas City, Phoenix Sky Harbor and Eppley Airfield.
San Diego is 2 hours behind St Louis.
Yes, return flights from SAN to STL are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from STL to SAN

St. Louis Lambert International Airport (STL) and San Diego International Airport (SAN) are connected by nonstop service from Southwest Airlines. With 9 weekly departures, this is a regularly served route.

STL to SAN Flight Duration and Schedule

Nonstop flight time from STL to SAN is about 3 hours 43 minutes gate to gate. The route covers a distance of 1,554 miles (2,501 km). There are approximately 9 weekly flights outbound and 10 return, totaling 19 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Kansas City, Phoenix Sky Harbor and Eppley Airfield. Two-stop connections are also available via intermediate hubs.