$73 Find Cheap Flights from St. Louis to San Francisco - Compare and Save

These are the earliest and latest flight times available from St. Louis to San Francisco:

• Earliest: departs at 6:11 am and lands at 10:50 am
• Latest: departs at 7:05 pm and lands at 11:44 pm.

The flight takes about 4h 39m.

Two cabin classes are available on flights from St. Louis to San Francisco:

• Economy Class
• First Class

A nonstop flight from St. Louis to San Francisco takes 4h 39m, covering 1,730 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from St. Louis to San Francisco range from $400 to $610, with an average of $501 over the past 12 months. Anything below $400 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 31% above the $501 route average. Book 11 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $308 round-trip via Las Vegas Harry Reid Intl (LAS), compared to $546 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Southwest. Other aircraft seen on the route include Airbus A319 variants.

Morning is the busiest departure period on St. Louis to San Francisco flights, with 67% of flights leaving in that window. Evening departures account for 33%, afternoon flights for 0%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $362 to $1,501. That means the highest observed fare was about 4x higher than the lowest one.

One-way fares from St. Louis to San Francisco are currently lower than usual. Average one-way flight prices are about $155, which is 49% below the typical average for this route.

San Francisco Airport (SFO) hosts 5 major car rental companies, with daily rates averaging $63 for economy cars. Top options include:

• Europcar
• Thrifty
• Dollar
• Hertz
• Fox

Flights from St. Louis to San Francisco usually depart from Lambert-St Louis (STL) and arrive at San Francisco (SFO).

One-stop flights from St. Louis to San Francisco most commonly connect through:

• Denver Intl (DEN) - 52% of one-stop connections
• Salt Lake City (SLC) - 15% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 13% of one-stop connections
• Phoenix Sky Harbor Intl (PHX) - 9% of one-stop connections

Yes. Flexible dates can save you up to 25% on flights from St. Louis to San Francisco. Wednesday is the cheapest departure day at $431 round-trip on average, while Monday is the most expensive at $573, a difference of $142.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

2 airlines operate flights between St. Louis and San Francisco. The airlines offering nonstop flights on this route include:

• United Airlines
• Southwest

Flying via Minneapolis St Paul (MSP) gives the shortest average 1-stop total travel time at 6h 12m, compared with 6h 18m via Salt Lake City (SLC) and 6h 25m via Phoenix Sky Harbor Intl (PHX).

San Francisco is 2 hours behind St. Louis (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in San Francisco are Fisherman's Wharf, Union Square and Moscone Center. These are among the most viewed places in San Francisco on KAYAK.

Among airlines operating St. Louis to San Francisco flights:

• United Airlines: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class
• Southwest: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

FreshenUp in the International Terminal provides three nap rooms that passengers can rent by the hour. FreshenUp is landside on level G, next to the airport travel agency. The nap rooms have a bed, desk, mirror, and free Wi-Fi. Showers are also provided but at an additional cost. Grand Hyatt at SFO is a hotel within SFO grounds that offers days rooms and overnight stays. It is connected to the airport via the AirTrain.

Nursing rooms have been provided for those traveling with infants at SFO. Nursing rooms are private and lockable and have comfortable seating and power outlets. You’ll find nursing rooms airside in Terminals 1, 2, and 3, with only Terminal 2 providing a landside option. Cloud of Good at SFO is an establishment that offers car seats and strollers for rent. They have three locations at SFO, one in each terminal. SFO has children play areas with interactive exploration areas for the older kids. You’ll find the play area around Gates 22, 54A, 58B, 87A, and 62.

Yes, SFO is a fully accessible airport. PRM will quickly get through the terminals, with ramps and elevators providing barrier-free access. PRM will also get accessible restrooms, reserved parking spots, dedicated seating, fast track services, and wheelchair assistance from their airlines. Low vision passengers coming through SFO have tactile guide paths, braille-coded elevator buttons, and Aira services to guide them through the airport. SFO has also provided TDD telephones and visual paging for hard-of-hearing passengers.

Trains are the quickest means of getting downtown, and SFO is served by the San Francisco BART, which you can take from the SFO station at the Departures level of the International Terminal. You can also take the BART and connect to CalTrain commuter train services that serve the larger San Francisco area and San Jose. SamTrans provides bus services between SFO and downtown San Francisco. They have three bus routes serving SFO, and you can board these buses from the baggage claim level of Terminals 2 and 3 and level 1 of Courtyard A in the International Terminal.