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Cheap flights from San Diego to St Louis

24 nonstop flights a week, 2 of them today. Operated by 2 airlines, about 3h 35m in the air, 1,561 mi (2,512 km). Tickets from $140, nonstop from $250.

Flights from San Diego to St Louis

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

Filters

Best fares from San Diego to St Louis

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Cheapest one-way $140 6 January 2027, with a connection Cheapest nonstop $250 6 January 2027, Southwest Airlines Cheapest month January 2027 tickets from $140

San Diego to St Louis at a glance

flight time, from 3h 25m to 9h 31m
3h 35m
straight-line distance
1,561 mi (2,512 km)
flights a week
24
flights today
2
first and last departure
06:30 - 17:20
lowest price, with a connection, 6 January
$140
lowest nonstop price
$250
airlines
2

San Diego to St Louis flight schedule

24 flights a week, 2 today, 33 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
WN 1954
Southwest Airlines
06:30 San Diego International, terminal 1
13:50 Lambert-St. Louis International, terminal 2
5h 20m
Mon, Tue, Wed, Thu
Boeing 737
WN 2533
Southwest Airlines
06:45 San Diego International, terminal 1
12:20 Lambert-St. Louis International, terminal 2
3h 35m
Sat
Boeing 737-800
WN 399
Southwest Airlines
07:50 San Diego International, terminal 1
16:20 Lambert-St. Louis International, terminal 2
6h 30m
Sat
Boeing 737
WN 2294
Southwest Airlines
09:05 San Diego International, terminal 1
16:20 Lambert-St. Louis International, terminal 2
5h 15m
Sat
Boeing 737-800
WN 3717
Southwest Airlines
09:05 San Diego International, terminal 1
14:35 Lambert-St. Louis International, terminal 2
3h 30m
Sat
Boeing 737
WN 4711
Southwest Airlines
11:55 San Diego International, terminal 1
17:25 Lambert-St. Louis International, terminal 2
3h 30m
Mon, Tue, Wed, Thu
Boeing 737
WN 399
Southwest Airlines
12:10 San Diego International, terminal 1
19:10 Lambert-St. Louis International, terminal 2
5h
Mon, Thu, Fri, Sun
Boeing 737-800
WN 1316
Southwest Airlines
13:40 San Diego International, terminal 1
19:10 Lambert-St. Louis International, terminal 2
3h 30m
Mon, Thu, Fri, Sun
WN 4472
Southwest Airlines
17:20 San Diego International, terminal 1
00:30 Lambert-St. Louis International, terminal 2
5h 10m
Mon, Thu, Fri, Sun
Boeing 737

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 24 November.

FlightDepartsArrivesDurationDaysAircraft
WN 3759
Southwest Airlines
13:40 San Diego International, terminal 1
19:10 Lambert-St. Louis International, terminal 2
3h 30m
Seasonal
Boeing 737-800
WN 3059
Southwest Airlines
06:40 San Diego International, terminal 1
12:15 Lambert-St. Louis International, terminal 2
3h 35m
Seasonal
Boeing 737
WN 1498
Southwest Airlines
14:10 San Diego International, terminal 1
21:25 Lambert-St. Louis International, terminal 2
5h 15m
Seasonal
Boeing 737-800
WN 2106
Southwest Airlines
14:35 San Diego International, terminal 1
20:05 Lambert-St. Louis International, terminal 2
3h 30m
Seasonal
Boeing 737
WN 4472
Southwest Airlines
16:45 San Diego International, terminal 1
23:55 Lambert-St. Louis International, terminal 2
5h 10m
Seasonal
Boeing 737
WN 3823
Southwest Airlines
18:20 San Diego International, terminal 1
23:45 Lambert-St. Louis International, terminal 2
3h 25m
Seasonal
Boeing 737
WN 3434
Southwest Airlines
11:10 San Diego International, terminal 1
16:35 Lambert-St. Louis International, terminal 2
3h 25m
Seasonal
Boeing 737-800
WN 702
Southwest Airlines
08:55 San Diego International, terminal 1
16:05 Lambert-St. Louis International, terminal 2
5h 10m
Seasonal
Boeing 737-800
WN 3434
Southwest Airlines
09:15 San Diego International, terminal 1
14:45 Lambert-St. Louis International, terminal 2
3h 30m
Seasonal
Boeing 737
WN 3434
Southwest Airlines
12:35 San Diego International, terminal 1
18:00 Lambert-St. Louis International, terminal 2
3h 25m
Seasonal
Boeing 737
WN 1157
Southwest Airlines
16:30 San Diego International, terminal 1
23:30 Lambert-St. Louis International, terminal 2
5h
Seasonal
UA 2322
United Airlines
06:20 San Diego International, terminal 2
17:51 Lambert-St. Louis International, terminal 1
9h 31m
Seasonal
Boeing 737
WN 2143
Southwest Airlines
10:50 San Diego International, terminal 1
18:00 Lambert-St. Louis International, terminal 2
5h 10m
Seasonal
Boeing 737-800
UA 1763
United Airlines
13:28 San Diego International, terminal 2
21:55 Lambert-St. Louis International, terminal 1
6h 27m
Seasonal
Boeing 737-800
WN 3434
Southwest Airlines
13:40 San Diego International, terminal 1
19:05 Lambert-St. Louis International, terminal 2
3h 25m
Seasonal
WN 3434
Southwest Airlines
11:55 San Diego International, terminal 1
17:20 Lambert-St. Louis International, terminal 2
3h 25m
Seasonal
Boeing 737-800
WN 3375
Southwest Airlines
10:50 San Diego International, terminal 1
18:50 Lambert-St. Louis International, terminal 2
6h
Seasonal
WN 3716
Southwest Airlines
13:00 San Diego International, terminal 1
18:35 Lambert-St. Louis International, terminal 2
3h 35m
Seasonal
Boeing 737
WN 3490
Southwest Airlines
06:50 San Diego International, terminal 1
12:30 Lambert-St. Louis International, terminal 2
3h 40m
Seasonal
Boeing 737
WN 3716
Southwest Airlines
12:20 San Diego International, terminal 1
17:55 Lambert-St. Louis International, terminal 2
3h 35m
Seasonal
Boeing 737-800
WN 3716
Southwest Airlines
13:25 San Diego International, terminal 1
19:00 Lambert-St. Louis International, terminal 2
3h 35m
Seasonal
Boeing 737
WN 3716
Southwest Airlines
12:25 San Diego International, terminal 1
18:00 Lambert-St. Louis International, terminal 2
3h 35m
Seasonal
Boeing 737
UA 1763
United Airlines
13:48 San Diego International, terminal 2
22:09 Lambert-St. Louis International, terminal 1
6h 21m
Seasonal
Boeing 737-800
WN 3665
Southwest Airlines
11:25 San Diego International, terminal 1
16:55 Lambert-St. Louis International, terminal 2
3h 30m
Seasonal
Boeing 737
WN 3665
Southwest Airlines
13:20 San Diego International, terminal 1
18:55 Lambert-St. Louis International, terminal 2
3h 35m
Seasonal
Boeing 737-800
WN 4254
Southwest Airlines
07:00 San Diego International, terminal 1
12:35 Lambert-St. Louis International, terminal 2
3h 35m
Seasonal
Boeing 737-800
WN 4473
Southwest Airlines
15:30 San Diego International, terminal 1
21:00 Lambert-St. Louis International, terminal 2
3h 30m
Seasonal
Boeing 737
WN 3665
Southwest Airlines
13:30 San Diego International, terminal 1
19:00 Lambert-St. Louis International, terminal 2
3h 30m
Seasonal
Boeing 737-800
WN 4354
Southwest Airlines
13:30 San Diego International, terminal 1
19:10 Lambert-St. Louis International, terminal 2
3h 40m
Seasonal
Boeing 737
WN 4533
Southwest Airlines
06:40 San Diego International, terminal 1
12:30 Lambert-St. Louis International, terminal 2
3h 50m
Seasonal
Boeing 737
WN 4354
Southwest Airlines
12:30 San Diego International, terminal 1
18:10 Lambert-St. Louis International, terminal 2
3h 40m
Seasonal
WN 3644
Southwest Airlines
06:35 San Diego International, terminal 1
12:15 Lambert-St. Louis International, terminal 2
3h 40m
Seasonal
Boeing 737
WN 4354
Southwest Airlines
12:45 San Diego International, terminal 1
18:25 Lambert-St. Louis International, terminal 2
3h 40m
Seasonal
Boeing 737

Days of the week are taken from the schedule for the next 14 days; schedules change by season. St Louis is 2 hours ahead of San Diego. The search shows seat availability and the price for your date.

Airlines flying San Diego to St Louis

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Southwest Airlines24 a week United Airlinesfrom 11 February
  • Southwest Airlines: 26 flights, first departure at 06:30, last at 17:20, tickets from $250 on 6 January MTWTFSS Southwest Airlines San Diego to St Louis
  • United Airlines: 2 flights, first departure at 06:20, last at 13:48 MTWTFSS

Airports

Where flights from San Diego to St Louis depart and land

Departure from San Diego

San Diego International SAN

24 flights a week, terminals 1, 2, 2 mi (4 km) from the city centre

About the airport

Arrival in St Louis

Lambert-St. Louis International STL

24 flights a week, terminals 1, 2, 12 mi (19 km) from the city centre

About the airport

Frequently asked questions

How long is the flight from San Diego to St Louis?
A nonstop flight takes 3 hours 35 minutes on average, from 3h 25m to 9h 31m depending on the flight.
How far is St Louis from San Diego?
1,561 mi (2,512 km) in a straight line between the cities.
Which airlines fly nonstop from San Diego to St Louis?
Southwest Airlines (24 a week) and United Airlines.
How many flights a day are there from San Diego to St Louis?
2 flights today and 24 a week, about 3.4 a day on average.
When are the first and last flights from San Diego to St Louis?
The first departure is at 06:30 (WN1954), the last at 17:20 (WN4472). Local time.
What is the cheapest upcoming date to fly from San Diego to St Louis?
6 January 2027 (Wednesday): from $140 one way, with a connection, by recent searches. The search shows the price for your dates.
Which airline is the cheapest from San Diego to St Louis?
Southwest Airlines: nonstop tickets from $250 on 6 January by recent searches. Prices change daily, so compare the sellers in the search.
What is the time difference between San Diego and St Louis?
St Louis is 2 hours ahead of San Diego. Schedule times on this page are local to each airport.
Which San Diego airport do flights to St Louis leave from?
San Diego International (24 a week).