Find Cheap Flights from Lambert-St Louis to San Francisco (STL - SFO)

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Lambert-St Louis to San Francisco Flight Information

Avg. Flight Duration 4h 30m
Flights Arrive in San Francisco
Flights Depart from Lambert-St Louis
Flight Price $210
Distance 1,732 miles
Airlines Frontier, Alaska Airlines, United Airlines, Delta

Good to Know

Low Season:
February
Best time to beat the crowds
2%
expected price decrease
High Season:
June
Most popular time to fly
7%
expected price increase
Average Price:
$289
(avg. price over the last 2 weeks)
Good Deal:
$187
or less (round trip)

When to Book Flights from Lambert-St Louis to San Francisco

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top Tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $186 or less.
The cheapest flight from Lambert-St Louis to San Francisco was found 29 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be May, June and July. The cheapest month to fly is February.
Morning departure is around 23% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Lambert-St Louis to San Francisco Flights

How long does a flight from Lambert-St Louis to San Francisco take?
An average nonstop flight takes 4h 53m, covering a distance of 1732 miles.
How many flights are there between Lambert-St Louis and San Francisco?
There are 100 (nonstop) flights between Lambert-St Louis and San Francisco per week, averaging 15 per day.
Which airlines provide the cheapest flights from Lambert-St Louis to San Francisco?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($210), Multiple Airlines ($233) and Alaska Airlines ($265).
Do I need a passport to fly between Lambert-St Louis and San Francisco?
No.
Which airlines fly most frequently between Lambert-St Louis and San Francisco?
United Airlines (5 times daily), Southwest (3 times daily), Air New Zealand (3 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Lambert-St Louis to San Francisco?
For Lambert-St Louis to San Francisco, Thursday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from San Francisco back to Lambert-St Louis, the best deals are generally found on Thursday, with Monday being the most expensive.

Book cheap flights from Lambert-St Louis to San Francisco (round-trip)

Airports
Origin
St. Louis
$210
only
$210
Destination
San Francisco
$210
only
$210
Thu, Jan 24
STL
Lambert-St Louis
SFO
San Francisco
18h 36m
Sun, Jan 27
SFO
San Francisco
STL
Lambert-St Louis
6h 37m
Trip: 4 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 36,076 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ATL
LGA
Excellent 10.0

Pros: The flight, service, and airport was great.

Cons: Security check was over an hour long. The entire process was tiring standing in line for a great deal of time.

CLE
SAT
Okay 5.0

Pros: The crew and my family

Cons: the flight was 2 hours late and then we waited in the plane for some maintenance. The plane was dirty when we got on

LGA
CVG
Okay 4.3

Pros: The price

Cons: Windows and other parts of plane were dirty. I felt as if I almost had to beg for a drink of water. The restriction on the personal item seemed outrageous for a week trip.

MCO
STL
Excellent 10.0

Pros: The flight was on time, the airplane was new and clean, and the seats were comfortable. We enjoyed the crew and our bag was waiting for us when we got to baggage claim. What more could one ask for on a no frills flight?

ORD
DEN
Mediocre 2.0

Cons: The flight was super delayed because Frontier was sharing a gate with another airline...

Wed, Nov 28
STL
Lambert-St Louis
SFO
San Francisco
26h 08m
Tue, Dec 4
SFO
San Francisco
STL
Lambert-St Louis
9h 00m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Dec 10
STL
Lambert-St Louis
SFO
San Francisco
14h 45m
Wed, Dec 19
SFO
San Francisco
STL
Lambert-St Louis
6h 21m
Trip: 10 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 24,375 reviews
Overall
8.6
Boarding
8.6
Comfort
8.3
Crew
8.9
Entertainment
7.9
Food
7.9
ORD
PDX
Excellent 9.0

Pros: Chargers at every seat, ability to text in air, excellent in flight entertainment options, great food options at reasonable price

Cons: Crowded, middle seat

BOS
SAN
Excellent 8.6

Pros: I liked how the pilots were always updating us with information. The crew was very nice.

Cons: The seats were too hard!!

MCI
SAN
Excellent 10.0

Pros: From the friendly welcome greeting at the terminal to the smoothest landing, comfortable seats with lots of legroom and long seatbelts, everything was great.

Cons: My seatmate was a snob but you couldn't control that!

KOA
PDX
Excellent 10.0

Cons: It was good

EWR
SJC
Good 7.3

Pros: The crew were very nice and hospitable.

Cons: The flight was delayed for over an hour.

Sun, Mar 10
STL
Lambert-St Louis
SFO
San Francisco
6h 05m
Wed, Mar 13
SFO
San Francisco
STL
Lambert-St Louis
9h 07m
Trip: 3 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 19 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
PVR
SFO
Mediocre 2.0

Pros: So many regrets for flying this dumpster fire.

LAX
SFO
Excellent 10.0

Pros: The help

Cons: Nothing

STL
SFO
Okay 4.0

Pros: Fast boarding.

Cons: The flight was half empty and when I tried to move a row ahead of me (from economy to economy plus), the flight attendance rudely told me I had to move back to my seat since the economy plus seat was $70 more. However, a reasonable airline would upgrade their customers to first or economy plus to not only appease their customers but to fill some empty seats. Therefore, I had to spend the entirety of my redeye flights crammed next to someone while I was looking at an almost empty economy plus section. Also, we boarded earlier than expected but we spend an extra hour on the flight waiting to take off. I would not have minded boarding early if we had taken off early, but we took off an hour later.

STL
SFO
Excellent 8.0

Pros: All the crew were friendly and accommodating.

Cons: Waiting so long for the flight to actually take off. Very late !

STL
SFO
Good 6.6

Pros: smooth flight, good service

Cons: hold up to board family with 2 much luggage, overhead bins 2 small

Fri, May 17
STL
Lambert-St Louis
SFO
San Francisco
7h 00m
Sun, May 19
SFO
San Francisco
STL
Lambert-St Louis
4h 14m
Trip: 3 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 21,360 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
ATL
BWI
Excellent 10.0

Pros: I love Delta! Always professional, efficient and polite. They disappoint on this round-trip flight. They are my go-to carrier. When I call the people whom I speak to are always very polite and efficient

Cons: The person next to me was a very large individual and the seats were not wide. This phenomenon had nothing to do with Delta as a carrier, however.

CDG
ATL
Excellent 9.3

Cons: plane was a bit old. tiny tv screen

SEA
SMF
Excellent 9.3

Cons: The flight was very hot. Passengers near me were sweating and we Hall had thick layers on because it was cold out. I understand trying to make it warm it there’s no need to turn up the heat that high.

LAX
ATL
Okay 4.0

Pros: 2: 1/2 delay

Cons: They put us on the plane after waiting 11/2 hours, we all had to deplane as the mechanical problems were not done correctly. We waited another hour to correct before leaving. The gate agent was able to get me on a later connecting flight to Charleston. That was a positive.

ATL
SLC
Excellent 8.0

Cons: Plane was delayed 90 minutes due to late crew. Plane was very old, only outside bins held carryons.

Fri, Feb 1
STL
Lambert-St Louis
SFO
San Francisco
16h 03m
Mon, Feb 4
SFO
San Francisco
STL
Lambert-St Louis
6h 19m
Trip: 4 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 36,076 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RNO
DEN
Mediocre 3.3

Cons: Flight was deayed for 3 hours. Terrible communication. 25 dollar voucher was given as compensation. I missed work and still have to pay my babysitter. Never again.

ATL
LGA
Excellent 10.0

Pros: The flight, service, and airport was great.

Cons: Security check was over an hour long. The entire process was tiring standing in line for a great deal of time.

DEN
GRR
Good 6.6

Pros: Cost of the flight

Cons: Not clear explained or told at all about purchasing a seat. Still cheap, but would be nice to have all details clear and out in the open.

SAT
OKC
Mediocre 2.3

Pros: Nothing.

Cons: Frontier has mastered the art of a cheaply run airline that nickel and dimes you to death with extra fees for EVERYTHING. The Airbus A319 was equipped with hard shell seats with a tiny flip down tray large enough to barely hold two plastic cups with the tightest seat pitch I've ever encountered and rigidly upright non-reclining backs. They made Lufthansa seating a Cadillac by comparison. The tall guy behind me's feet stick out between my feet because he literally had no where else to put them. It's as if they tried to make the plane as uncomfortable as possible. I've flown across the Atlantic in a military transport on nylon webbing seats that were far less painful. There's a fee for baggage, even carry-ons, and for everything in the cabin, including water. The fares aren't cheap either, but I had to get to OKC for the weekend and American and Southwest were fully booked. Only Frontier had seats available, and now I know why. If it's too expensive for you to fly a decent plane, Frontier, just shut it down and save the traveling public a lot of aggravation and discomfort. if it's a choice between Frontier and the bus, take the bus!

LAS
MSN
Good 6.0

Pros: The plane was clean the flight crew was polite. No real issues once a pilot arrived in Vegas.

Cons: I heard that this happens a lot with Frontier. Everyone arrived about 2 hours before the flight before receiving the notification of the delay. The pilot announced he was contacted last minute in Denver to fly to Vegas and cover the flight.

Tue, Dec 18
STL
Lambert-St Louis
SFO
San Francisco
4h 53m
Fri, Jan 4
SFO
San Francisco
STL
Lambert-St Louis
4h 08m
Trip: 18 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 19 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
PVR
SFO
Mediocre 2.0

Pros: So many regrets for flying this dumpster fire.

STL
SFO
Excellent 8.3

Pros: Everything was on time.

Cons: The wifi did not work

LAX
SFO
Excellent 10.0

Pros: The help

Cons: Nothing

STL
SFO
Okay 4.0

Pros: Fast boarding.

Cons: The flight was half empty and when I tried to move a row ahead of me (from economy to economy plus), the flight attendance rudely told me I had to move back to my seat since the economy plus seat was $70 more. However, a reasonable airline would upgrade their customers to first or economy plus to not only appease their customers but to fill some empty seats. Therefore, I had to spend the entirety of my redeye flights crammed next to someone while I was looking at an almost empty economy plus section. Also, we boarded earlier than expected but we spend an extra hour on the flight waiting to take off. I would not have minded boarding early if we had taken off early, but we took off an hour later.

STL
SFO
Excellent 8.0

Pros: Flight left on time and landed early. Attendants were very friendly and helpful.

Cons: Food choices were very limited for a 4 hour flight.

Tue, Apr 16
STL
Lambert-St Louis
SFO
San Francisco
8h 17m
Fri, Apr 19
SFO
San Francisco
STL
Lambert-St Louis
3h 59m
Trip: 4 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 36,076 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
GRR
Good 6.6

Pros: Cost of the flight

Cons: Not clear explained or told at all about purchasing a seat. Still cheap, but would be nice to have all details clear and out in the open.

ATL
LGA
Excellent 10.0

Pros: The flight, service, and airport was great.

Cons: Security check was over an hour long. The entire process was tiring standing in line for a great deal of time.

CVG
SAT
Okay 4.3

Pros: I liked that with the super short layover I didn't have to change planes. That made the trip less stressful.

Cons: Same as above. It was the same plane.

LAS
MSN
Good 6.0

Pros: The plane was clean the flight crew was polite. No real issues once a pilot arrived in Vegas.

Cons: I heard that this happens a lot with Frontier. Everyone arrived about 2 hours before the flight before receiving the notification of the delay. The pilot announced he was contacted last minute in Denver to fly to Vegas and cover the flight.

LGA
CVG
Okay 4.3

Pros: The price

Cons: Windows and other parts of plane were dirty. I felt as if I almost had to beg for a drink of water. The restriction on the personal item seemed outrageous for a week trip.

Thu, Apr 18
STL
Lambert-St Louis
SFO
San Francisco
8h 50m
Sat, Apr 20
SFO
San Francisco
STL
Lambert-St Louis
9h 02m
Trip: 3 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 24,375 reviews
Overall
8.6
Boarding
8.6
Comfort
8.3
Crew
8.9
Entertainment
7.9
Food
7.9
SEA
GEG
Okay 4.3

Cons: Plane was freezing!

EWR
SJC
Good 7.3

Pros: The crew were very nice and hospitable.

Cons: The flight was delayed for over an hour.

SFO
SEA
Excellent 10.0

Pros: Free movies and WiFi, comfy seats

OMA
SEA
Excellent 10.0

Pros: Love Alaska Airlines

MCI
SAN
Excellent 10.0

Pros: From the friendly welcome greeting at the terminal to the smoothest landing, comfortable seats with lots of legroom and long seatbelts, everything was great.

Cons: My seatmate was a snob but you couldn't control that!

Mon, Jan 7
STL
Lambert-St Louis
SFO
San Francisco
8h 06m
Sat, Jan 12
SFO
San Francisco
STL
Lambert-St Louis
18h 36m
Trip: 6 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 36,076 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ATL
LGA
Excellent 10.0

Pros: The flight, service, and airport was great.

Cons: Security check was over an hour long. The entire process was tiring standing in line for a great deal of time.

LAS
MSN
Good 6.0

Pros: The plane was clean the flight crew was polite. No real issues once a pilot arrived in Vegas.

Cons: I heard that this happens a lot with Frontier. Everyone arrived about 2 hours before the flight before receiving the notification of the delay. The pilot announced he was contacted last minute in Denver to fly to Vegas and cover the flight.

SMF
DEN
Mediocre 2.0

Cons: Late again

RNO
DEN
Mediocre 3.3

Cons: Flight was deayed for 3 hours. Terrible communication. 25 dollar voucher was given as compensation. I missed work and still have to pay my babysitter. Never again.

CLE
SAT
Okay 5.0

Pros: The crew and my family

Cons: the flight was 2 hours late and then we waited in the plane for some maintenance. The plane was dirty when we got on

Tue, Dec 25
STL
Lambert-St Louis
SFO
San Francisco
17h 37m
Sat, Dec 29
SFO
San Francisco
STL
Lambert-St Louis
9h 08m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
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*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.