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STL to SDM: distance & flight time
St. Louis (St Louis Lambert International Airport) → San Diego (Brown Field Municipal Airport)
1,547 mi
2,490 km · 1,345 nm
3h 30m
estimated nonstop flight time
-2h
time difference · heading west
See live STL→SDM fares Phone-only fares on this route — call free
Flight time details
1,547 miles nonstop takes roughly 3h 30m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- STL — St Louis Lambert International Airport · St. Louis, United States
- SDM — Brown Field Municipal Airport · San Diego, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Near SDM
Frequently asked questions
How far is STL from SDM?
The flight distance from St. Louis (STL) to San Diego (SDM) is 1,547 miles (2,490 km, 1,345 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to SDM?
A nonstop flight takes about 3h 30m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between St. Louis and San Diego?
San Diego is 2 hours behind St. Louis.
What is the cheapest way to fly from STL to SDM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–SDM that never appear on search engines, with no booking fees.