Flights
Hotels
From
To
1 traveler
Unsupported Browser!
Find Flights
Finding cheap flights is simple. More than 36 million people last year saved hundreds by using our flights tool.

Flights
Hotels
Round-trip
One-way
1 traveler
Unsupported Browser!
Find Flights
Finding cheap flights is simple. More than 36 million people last year saved hundreds by using our flights tool.
Did you mean flights from San Diego to St Louis?

Flights from St Louis to San Diego, United States Last modified: Sep 26, 2016 2:41 AM

TIPSave $17 by flying into Los Angeles instead of San Diego from St Louis

St Louis to San Diego Last modified: Sep 26, 2016 2:42 AM

We've scanned 20,789,023,501 round trip itineraries and found the cheapest flights from St Louis to San Diego. Frontier & United frequently offer the best deals on St Louis to San Diego flights, or select your preferred carrier below to see the cheapest days to fly.

Frontier
STLSAN
Tue 10/11
1 stop
SANSTL
Tue 10/18
1 stop
$234
Select
Frontier
STLSAN
Sat 10/15
1 stop
SANSTL
Mon 10/31
1 stop
$234
Select
Frontier
STLSAN
Sat 10/15
1 stop
SANSTL
Mon 10/17
1 stop
$234
Select
Frontier
STLSAN
Sat 10/15
1 stop
SANSTL
Tue 10/18
1 stop
$234
Select
Frontier
STLSAN
Tue 10/18
1 stop
SANSTL
Fri 10/21
1 stop
$234
Select
United
STLSAN
Wed 11/2
1 stop
SANSTL
Sat 11/5
1 stop
$258
Select
Alaska
STLSAN
Sat 10/15
2 stops
SANSTL
Tue 10/18
2 stops
$317
Select
American
STLSAN
Tue 11/8
1 stop
SANSTL
Tue 11/15
1 stop
$337
Select

How Much is a Flight from St Louis to San Diego?

We have collected flight cost data from across the web for travel from St Louis to San Diego, and have found the average flight price for this trip to be $248.

Where To Buy Cheap Flights from St Louis to San Diego?

The best way to find a great deal on airfare is to search multiple sites. When you run a search on FareCompare, we search multiple sites and fare sources all at once so you don't have to - which is why we thinking FareCompare is the best place to find cheap tickets. Airlines can adjust prices for tickets from St Louis to San Diego based on the day and time that you decide to book your flight. We have collected data from all airlines, and have found that Tuesdays, Wednesdays, and Saturdays are often the best days to book flights. If you'd like to learn more, read our article about the best time to buy airline tickets.

How far in advance should I book tickets from St Louis to San Diego?

The chart below shows up-to-date information regarding how far in advance to book your flight from St Louis to San Diego.

Non Stop versus Connecting
Advanced PurchaseNon StopConnecting
< 7 days $0 $312
7-14 days $0 $282
14-21 days $0 $234
21-30 days $0 $234
30-60 days $0 $234
60-90 days $0 $282
90+ days $0 $282

Cheapest Day To Fly from St Louis to San Diego

We've examined 20,795,316,600 itinerary searches that we've seen for departures in the next 90 days and found that the cheapest day to fly from St Louis to San Diego is Tuesday. See the chart below to compare prices for other days of the week.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$282 $234 $234 $234 $234 $234 $282

Compare Flight Prices from St Louis to San Diego by Month

Low priced flights are most commonly available by purchasing between one and three months in advance. International or holiday flights may need to be purchased even further in advance. The chart below shows the cheapest flight prices by month for St Louis to San Diego flights.

Month Origin Destination Carrier Depart Date Return Date Stops Price
September St Louis San Diego Frontier 9/29/16 10/3/16 1 $350
October St Louis San Diego Frontier 10/11/16 10/18/16 1 $234
November St Louis San Diego Frontier 11/1/16 11/5/16 1 $234
December St Louis San Diego United 12/1/16 12/6/16 1 $282
January St Louis San Diego United 1/9/17 1/12/17 1 $282
February St Louis San Diego United 2/7/17 2/15/17 1 $282
March St Louis San Diego American 3/9/17 3/13/17 1 $396
April St Louis San Diego American 4/1/17 4/5/17 1 $396

Cheap Last Minute Flights from St Louis to San Diego

Looking for cheap last minute flights or a weekend getaway? We've got you covered with weekend flight deals from St Louis to San Diego. The chart below shows the best last minute deals and cheap flights this weekend we could find.

Next 30 Days

SunMonTueWedThuFriSat
25 26 27 28 29 30 1
$350
2 3 4 5 6 7 8
$350 $440
9 10 11 12 13 14 15
$440 $234
16 17 18 19 20 21 22
$234 $338
23 24 25 26 27 28 29
$338 $234
30 31 1 2 3 4 5
$234

Connecting Flights vs Direct Flights from St Louis to San Diego

Flights between some cities may be significantly cheaper if you choose a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from St Louis to San Diego is $290.

The average price for direct flights from St Louis to San Diego is not available.

The chart below shows up to date information regarding non-stop flights from St Louis to San Diego.

Weekly Direct Flights from St Louis to San Diego - By Carrier
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Southwest 1 1 1 1 1 1 1 09:45 14:35

One Way Flights vs Round Trip Flights from St Louis to San Diego

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from St Louis to San Diego. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from St Louis to San Diego is not available.

The average price for round trip flights from St Louis to San Diego is $290.

St Louis to San Diego Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is the flight from St Louis to San Diego?
Answer: The average St Louis to San Diego flight time is 3 hours and 40 minutes.
Question: How far is San Diego from St Louis?
Answer: The distance from St Louis to San Diego is 1,553 miles (2,499 kilometers).
Question: How common are direct flights from St Louis to San Diego?
Answer: There are 7 direct flights from St Louis to San Diego.
Question: What are the most popular St Louis airlines for direct flights from St Louis to San Diego?
Answer: Southwest Airlines provides 100% of the non-stop flights between St Louis and San Diego.
Question: What are the most popular connecting cities when flying from St Louis to San Diego?
Answer: Chicago, IL

Airlines in St Louis flying to San Diego Last modified: Sep 26, 2016 2:42 AMNumber of routes searched: 111Number of itineraries searched: 88,880

Wondering which airlines fly out of St Louis to San Diego? We've gathered the average price of St Louis airlines with flights to San Diego. Different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary showing which days of the week individual carriers offer flights for the next 30 days.

St Louis to San Diego
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American PHX
American DFW
American LAX
United IAH
American ORD
United SFO
Frontier DEN
Alaska PDX
Delta MSP
Delta SLC
Delta ATL
Alaska SEA
American DFW / PHX
Delta DTW
Alaska SEA / SJC
Delta MSP / LAX
Alaska SEA / LAX
Alaska PDX / SEA
United SFO / LAX
United DEN / LAX
United ORD / SFO

St Louis to San Diego Airports

These are the major commercial airports we're currently monitoring in St Louis and San Diego. If your route includes a city with multiple airports, you may be able to find substantial savings by choosing an alternate airport.

Farecompare Research Tools

FareCompare's Flight Schedule Search Tool helps you find information about airline schedule filings, including flight numbers, depart times, and travel distance.

Cheap Domestic Flights from St Louis - STL

FlightsAirlineLowest Price
Flights from St Louis to Los Angeles American, Alaska, Delta, Frontier, United $239
Flights from St Louis to Las Vegas American, Delta, Frontier, United $117
Flights from St Louis to Santa Ana American, Alaska, Delta, United $312
Flights from St Louis to Phoenix American, Alaska, Delta, Frontier, United $134
Flights from St Louis to PalomarCheck Dates
Flights from St Louis to Ontario American, Alaska, Delta, United $325
Flights from St Louis to Palm Springs American, Alaska, Delta, United $338
Flights from St Louis to Long Beach American, Alaska, Delta $358
Flights from St Louis to Burbank American, Alaska, Delta, United $338
Flights from St Louis to San Francisco American, Alaska, Delta, Frontier, United $264

Cheap International Flights from St Louis - STL

Cheap Flights from St Louis to San Diego