Cheap flights from Lambert-St Louis Intl to San Francisco (STL - SFO)

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The best prices from Lambert-St Louis Intl to San Francisco are usually found in July or August, booked 20 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

How to find the cheapest flight from
Lambert-St Louis Intl (STL) to San Francisco (SFO)

All the information you need to plan the best STL to SFO flight in 2021: compare Lambert-St Louis Intl to San Francisco flight prices with the expected peak season, weather and rainfall in San Francisco.
STL - SFO
Price
$254 - $400
SFO
Temperature
59 - 77 °F
SFO
Rainfall
0 - 4.7 inches

Popular in

March

High demand for flights, 17% potential price rise

Cheapest in

July

Best time to find cheap flights, 24% potential price drop

Round-trip from

$254

From Lambert-St Louis Intl to San Francisco

One-way from

$167

One-way flight from Lambert-St Louis Intl to San Francisco

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Lambert-St Louis Intl to San Francisco?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Lambert-St Louis Intl to San Francisco?

Find a great deal and save up to 7% by booking at least 35 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Lambert-St Louis Intl to San Francisco within the next two weeks, with the cheapest ticket starting at $99.

What is the cheapest month to fly from Lambert-St Louis Intl to San Francisco?

Our data shows that August tends to be the cheapest month to fly to San Francisco from Lambert-St Louis Intl. Users have commonly found prices around $108 for the month, but tickets can be as low as $48. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Lambert-St Louis Intl to San Francisco (STL - SFO)?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 11% on flights from Lambert-St Louis Intl to San Francisco by exploring options for tickets at noon.

Cheap flights from Lambert-St Louis Intl to San Francisco in May, June 2021

The best prices found for STL to SFO flights for May, June
23 Jun - 29 Jun
$209pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
STL
Lambert-St Louis
12 Jun - 15 Jun
$214pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
15 Jun - 19 Jun
$218pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis

Lambert-St Louis Intl to San Francisco 2021 flight deals

Cheap flights to San Francisco from Lambert-St Louis Intl found for this year
12 Oct - 19 Oct
$196pp
STL
Lambert-St Louis
Alaska Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Alaska Airlines
 
1 STOP
STL
Lambert-St Louis
23 Jun - 29 Jun
$209pp
STL
Lambert-St Louis
Frontier
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
STL
Lambert-St Louis
21 Aug - 23 Aug
$214pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis

Non-stop flights to San Francisco from Lambert-St Louis Intl

Save time with Lambert-St Louis Intl to San Francisco direct flight deals
24 Sep - 28 Sep
$217pp
STL
Lambert-St Louis
United Airlines
Non-Stop
SFO
San Francisco
SFO
San Francisco
United Airlines
Non-Stop
STL
Lambert-St Louis
26 Oct - 2 Nov
$219pp
STL
Lambert-St Louis
United Airlines
Non-Stop
SFO
San Francisco
SFO
San Francisco
United Airlines
Non-Stop
STL
Lambert-St Louis
25 Sep - 28 Sep
$235pp
STL
Lambert-St Louis
United Airlines
Non-Stop
SFO
San Francisco
SFO
San Francisco
United Airlines
Non-Stop
STL
Lambert-St Louis

Last minute flights from Lambert-St Louis Intl to San Francisco

Late deals on round-trip flights to San Francisco from Lambert-St Louis Intl, departing today and this week
24 May - 1 Jun
$240pp
STL
Lambert-St Louis
Frontier
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier
 
1 STOP
STL
Lambert-St Louis
21 May - 1 Jun
$254pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
24 May - 1 Jun
$255pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis

One-way flights to San Francisco from Lambert-St Louis Intl

The cheapest one-way flights from Lambert-St Louis Intl to San Francisco
4:00 am - 2:03 pm
Alaska Airlines
2 Stops
12h 03m
STL - SFO
Alaska Airlines
6:00 am - 12:52 pm
Sun Country Air
1 Stop
8h 52m
STL - SFO
Sun Country Air
9:33 am - 3:38 am
Multiple Airlines
2 Stops
44h 05m
STL - SFO
Multiple Airlines
$181
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Lambert-St Louis Intl</span> to <span class="emphasized">San Francisco</span> flights.

Flight FAQs

From Lambert-St Louis Intl to San Francisco

Are flight prices decreasing from St Louis to San Francisco due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both St Louis and San Francisco for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Lambert-St Louis to San Francisco to control the spread of COVID-19?

Alaska Airlines is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. New policies for travelers booking flights from Lambert-St Louis to San Francisco include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Lambert-St Louis to San Francisco have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like United Airlines, Frontier, and American Airlines flying from Lambert-St Louis to San Francisco have implemented new flexible cancellation policies.

Can I find flights from Lambert-St Louis Intl to San Francisco for under $200 on Cheapflights?

Yes, there are multiple flights from Lambert-St Louis Intl to San Francisco for under $200. The cheapest flight booked recently is on Alaska Airlines for just $196, but on average you can expect to pay $224.

Are there nonstop flights from Lambert-St Louis Intl to San Francisco for under $300 on Cheapflights?

Cheapflights has at least 20 direct flights from Lambert-St Louis Intl to San Francisco under $300. A good price for a nonstop flight from Lambert-St Louis Intl to San Francisco is less than $298.

Are there last-minute flights available from Lambert-St Louis Intl to San Francisco for under $300?

There are currently 20+ open flights from Lambert-St Louis Intl to San Francisco within the next 7 days for less than $300.

How popular is this flight route?

The Lambert-St Louis to San Francisco flight path was viewed by 78 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Does it rain more in St Louis or San Francisco?

The rainfall in St Louis is generally less than the rainfall in San Francisco. This will continue over the next 18 days.

Is St Louis weather warmer or cooler than San Francisco?

With an average temperature of 90 °F, peak weather can be found in July. As a traveler, expect to see changes in flight prices during that period. The temperatures in San Francisco are colder than in St Louis.

How long is the flight from Lambert-St Louis Intl to San Francisco?

There are many flights that can get you from Lambert-St Louis Intl to San Francisco in 4h 33m. Fly via United Airlines, American Airlines, or Delta to get the fastest option. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Lambert-St Louis Intl to San Francisco round-trip?

Cheapflights users have booked flights from Lambert-St Louis Intl to San Francisco round-trip from $196. Other airlines that can offer you cheap pricing are Frontier, from $209, and United Airlines, from $217. Alaska Airlines is currently priced 41% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Lambert-St Louis Intl to San Francisco one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $110. However, be on the lookout for offers from Sun Country Air and Alaska Airlines, as they are both options that can get you from Lambert-St Louis Intl to San Francisco for a low price.

Alternative routes for Lambert-St Louis Intl to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for San Francisco

Things to know before you go - useful duration and weather info for your trip from Lambert-St Louis Intl to San Francisco.
Flight duration
4h 23m
Average temperature for May in San Francisco
69.8 °F
Avg rainfall for May in San Francisco
0.6 ″

Airports servicing St. Louis

Airports servicing San Francisco

Top 7 airlines flying from Lambert-St Louis Intl to San Francisco

The chart below displays the airlines Cheapflights users traveling from Lambert-St Louis Intl to San Francisco choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$107 $246 No cancel fee 62%
Sun Country Air
$141 $261 No cancel fee 83%
Alaska Airlines
$139 $308 No cancel fee 75%
Delta
$137 $313 No cancel fee N/A
American Airlines
$152 $334 No cancel fee 71%
United Airlines
$183 $404 No cancel fee 69%
Southwest
$223 $504 No cancel fee 63%

Hourly flight availability from Lambert-St Louis Intl to San Francisco

See what time of day planes typically take off from Lambert-St Louis Intl towards San Francisco.
Afternoon Noon to 6 PM 100% of STL to SFO departures
Early morning Midnight to 6 AM 0% of STL to SFO departures
Morning 6 AM to noon 0% of STL to SFO departures
Evening 6 PM to midnight 0% of STL to SFO departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Lambert-St Louis Intl to San Francisco
See how many times per day planes take to the skies headed from Lambert-St Louis Intl to San Francisco.
Sunday
2 daily flights
Monday
1 daily flight
Tuesday
0 flights
Wednesday
0 flights
Thursday
1 daily flight
Friday
1 daily flight
Saturday
0 flights
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