St Louis to San Francisco (STL–SFO) — Airlines, Schedules & Connections

STL Airport Page →
1,731 mi airlines charter/private 26/wk
On-time Some delays Frequent delays
Flight Schedule 11 flights Verified 48m ago
Also flown by charter / private operators: NetJets Aviation, Sirio S.p.A..
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
UA573
Starts Sep 24
UA United
319
7:06 AM
CDT T1
9:30 AM
PDT
4h 24m
52%
M T W T F S S
Prices
WN4157
WN Southwest
B38M
8:25 AM
CDT T2
10:35 AM
PDT
4h 10m
74%
M T W T F S S
Prices
OZ6344+4
OZ Asiana
319
8:35 AM
CDT T1
10:57 AM
PDT
4h 22m
M T W T F S S
Prices
UA2100
UA United
319
9:03 AM
CDT T1
11:17 AM
PDT
4h 14m
52%
M T W T F S S
Prices
WN4082
Seat map
WN Southwest
738 Seat map
12:37 PM
CDT T2
2:34 PM
PDT
3h 57m
74%
M T W T F S S
Prices
WN3789
Starts Oct 6
WN Southwest
7S7
11:45 AM
PDT T2
5:30 PM
CDT
3h 45m
38%
M T W T F S S
Prices
UA488
UA United
319
12:00 PM
PDT T2
5:59 PM
CDT
3h 59m
28%
M T W T F S S
Prices
WN3564
WN Southwest
73H
12:25 PM
PDT T2
6:04 PM
CDT
3h 39m
38%
M T W T F S S
Prices
UA1905
Starts Sep 24
UA United
738
12:45 PM
PDT T3
6:43 PM
CDT
3h 58m
28%
M T W T F S S
Prices
WN3257
Starts Oct 1
WN Southwest
7S7
1:05 PM
PDT T2
6:50 PM
CDT
3h 45m
38%
M T W T F S S
Prices
WN232
Starts Oct 4
WN Southwest
73H
1:10 PM
PDT T2
6:55 PM
CDT
3h 45m
38%
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 47m WN OZUA Kansas City (MCI) to San Francisco flights
DEN Denver 5h 49m ACF9UA ACAVDL Denver (DEN) to San Francisco flights
LAS Las Vegas 5h 57m EJMF9WN ACASAZ Las Vegas (LAS) to San Francisco flights
DAL Dallas 6h 5m EJAWN EJALXJWN Dallas (DAL) to San Francisco flights
PHX Phoenix 6h 10m AAASWN AAACAZ Phoenix (PHX) to San Francisco flights
SMF Sacramento 6h 16m WN ACAVCM Sacramento (SMF) to San Francisco flights
LAX Los Angeles 6h 17m AACXJL AAAFAM Los Angeles (LAX) to San Francisco flights
SLC Salt Lake City 6h 18m DLKE ACAFAV Salt Lake City (SLC) to San Francisco flights
SAN San Diego 6h 23m WN ACASAZ San Diego (SAN) to San Francisco flights
MSP Minneapolis 6h 29m AFAMDL AFCADL Minneapolis (MSP) to San Francisco flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
St Louis to San Francisco
4 carriers, 26 flights/week nonstop.
4 Airlines 1,731 mi 4h 14m nonstop -2h behind

STL–SFO is served by 4 airlines with nonstop service. United Airlines, Southwest Airlines and Alaska Airlines lead the route. The flight covers 1,731 miles in approximately 4h 14m. Beyond nonstop, 1-stop connecting options are also available.

Airline Landscape

All carriers operating nonstop STL–SFO service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
UA United Airlines Also: OZ 12 319 4h14-4h24 100% Star Alliance OZ
WN Southwest Airlines 7 738, B38M 3h57-4h10 100%
AS Alaska Airlines 0 100% Oneworld
DL Delta Air Lines 0 100% SkyTeam
Aircraft on this route
319 Airbus A319 – OZ, UA
738 Boeing 737-800 – WN
B38M Boeing 737 MAX 8 – WN
Alliance coverage
Star Alliance: UA (12 flights/wk, 63%)
Unaffiliated: WN (7 flights/wk, 37%)
Oneworld: AS (0 flights/wk, 0%)
SkyTeam: DL (0 flights/wk, 0%)
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 SFO direction.
Mon
4
flights
Tue
3
flights
Wed
4
flights
Thu
4
flights
Fri
4
flights
Sat
3
flights
Sun
4
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
5
Nonstop flights
26
Outbound / wk
26
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for STL to SFO.
1-STOP
One-Stop Connections
45
Hubs
~5h
Fastest
~23h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
3,008
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 → SFO
100%
Generally reliable. Most flights run on time.
Departing
100%
Arriving
69%
Return
SFO → STL
65%
Moderate delays possible. Allow buffer time.
Departing
65%
Arriving
100%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. STL delays → SFO delays →

Other ways to reach San Francisco from St Louis

Nearby airports with service to San Francisco International Airport.
Metric STL→SFO PIA→SFO
Distance from STL 137 mi
Nonstop airlines 4 1
Weekly flights 26
Flight time 4h 14m 3h 30m
Departure OTP 100%
Airports within 200 miles of STL with service to San Francisco International Airport.

Travel Essentials

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

When it's 6:00 PM in St Louis, it's 4:00 PM in San Francisco.
Distance & Flight Time
1,731 mi / 2,786 km
Nonstop flight time is approximately 4h 14m gate to gate.
Getting from SFO

BART from SFO station (free AirTrain from any terminal to the station) to downtown San Francisco takes 30–40 minutes ($10.45 to Embarcadero). Traffic on 101 can make taxis and ride-hails much slower during peak hours; BART skips all of that. BART also reaches Oakland, Berkeley, and Millbrae for Caltrain connections.Ride-hails from SFO use a dedicated garage pickup area; follow signs. Taxis are metered; downtown SF costs $40–60. Caltrain to the Peninsula (Mountain View, Palo Alto, San Jose) requires taking BART to Millbrae station for the transfer. Rental cars are at a consolidated facility accessible by AirTrain.

San Francisco Climate

Coastal fog dominates the climate pattern. The thick marine layer ("Karl the Fog") rolls into SFO from the Pacific regularly in summer (June–September), causing significant low-visibility delays even on days that appear sunny inland. Morning fog burns off by afternoon most days, but persistent IFR conditions can last all day. This is the primary flight disruption risk at SFO.

Temperatures are mild year-round (10–20°C) with little seasonal variation. Winters bring rain (December–March) and occasional atmospheric river events that cause brief but intense flooding on the 101. Summers are cool. Pack a light jacket year-round. Wind off the bay affects small aircraft approach paths.

STL–SFO Quick Facts

Key statistics for the St Louis to San Francisco route.
Route details
Distance1,731 mi / 2,786 km
Flight time4h 14m
Time difference-2 hours
Airlines (nonstop)4
Weekly flights26 out / 26 return
1-stop connectionsAvailable
Origin: STL
IATA / ICAOSTL / KSTL
TimezoneAmerica/Chicago
Passengers/yr15.6M
Elevation618 ft / 188 m
Destination: SFO
IATA / ICAOSFO / KSFO
TimezoneAmerica/Los_Angeles
Passengers/yr50.2M
Elevation13 ft / 4 m

Frequently Asked Questions

Common questions about STL to SFO flights.
Nonstop flights from St. Louis Lambert International Airport to San Francisco International Airport take about 4h 14m gate to gate. The route covers 1,731 miles.
4 airlines operate flights from STL to SFO: United Airlines, Southwest Airlines, Alaska Airlines and Delta Air Lines.
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, Denver and Harry Reid.
On a single ticket, yes. Your bags are checked through to SFO and move between planes without you. On two separate tickets you collect your bags at the connecting airport and recheck them, so build in extra layover time.
San Francisco is 2 hours behind St Louis.
Yes, return flights from SFO to STL are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include PIA. See the Alternatives section for a full comparison.
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 SFO

St. Louis Lambert International Airport (STL) and San Francisco International Airport (SFO) are connected by nonstop service from United Airlines, Southwest Airlines, Alaska Airlines and Delta Air Lines. With 26 weekly departures, this is a well served route.

STL to SFO Flight Duration and Schedule

Nonstop flight time from STL to SFO is about 4 hours 14 minutes gate to gate. The route covers a distance of 1,731 miles (2,786 km). There are approximately 26 weekly flights outbound and 26 return, totaling 52 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Kansas City, Denver and Harry Reid. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Peoria (PIA).