Cheap flights from San Diego to St. Louis (SAN - STL) from $60

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SAN — STL
Mar 2 — Mar 91

The best prices from San Diego to Lambert-St Louis are usually found in February or September, booked 40 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from San Diego to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 26, 2024.

Popular in

March

Cheapest in

February

Round-trip from

$323

One-way from

$118
High demand for flights, 16% potential price rise
Best time to find cheap flights, 15% potential price drop
From San Diego to Lambert-St Louis
One-way flight from San Diego to Lambert-St Louis

What is the cheapest day to fly round-trip from San Diego to St. Louis?

Users have found that flying from San Diego to St. Louis on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from San Diego to St. Louis?

Travelers have found it’s best to book a flight 41 days in advance to save up to 19% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 41 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from San Diego to St. Louis 1-2 weeks in advance for as low as $258, or $406 for flights within the next 24 hours.

What is the cheapest month to fly from San Diego to St. Louis?

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, February can be a great choice for travel to St. Louis. Flights to St. Louis from San Diego in February are about $432 on average during February, but can be found for as low as $137.

When is the cheapest time to fly from San Diego to St. Louis (SAN - STL)?

A simple way to save on the total cost of your ticket is to fly from San Diego to St. Louis in the evening. If you’re flexible enough to do this you can expect to save up to 48% on your trip compared to booking a flight at noon.

Cheap Southwest flights from San Diego to St. Louis

Explore cheap flight options specifically provided by Southwest for the route between San Diego and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,409,476 searches. Data last updated February 26, 2024.
Find some of the cheapest Southwest flights traveling from San Diego to St. Louis. Deals update often to give you more flight options matching your criteria
Mon 3/119:45 amSAN - STL
Nonstop3h 25mSouthwest
Thu 3/147:30 pmSTL - SAN
1 stop5h 40mSouthwest
Deal found 2/26$649
Mon 3/116:55 pmSAN - STL
Nonstop3h 25mSouthwest
Thu 3/144:50 pmSTL - SAN
Nonstop4h 00mSouthwest
Deal found 2/26$654

Cheap Delta flights from San Diego to St. Louis

Explore cheap flight options specifically provided by Delta for the route between San Diego and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,409,476 searches. Data last updated February 26, 2024.
Some of the best deals we've found on Delta flights traveling from San Diego to St. Louis. Deals frequently update to provide users with more options.
Tue 5/76:15 amSAN - STL
1 stop6h 05mDelta
Wed 5/85:30 pmSTL - SAN
1 stop8h 21mDelta
Deal found 2/25$236
Mon 3/115:16 pmSAN - STL
1 stop5h 28mDelta
Thu 3/146:11 amSTL - SAN
1 stop6h 58mDelta
Deal found 2/26$363

Cheap San Diego to St. Louis flights in February & March 2024

Find cheap flight options from San Diego to St. Louis specifically for the months of February and March 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,409,476 searches. Prices were last updated on February 26, 2024.
Check out some of the best flight deals from San Diego to St. Louis in 2024. Check back in a little while for more flight options.
Tue 3/129:07 amSAN - STL
1 stop10h 07mFrontier
Sat 3/167:04 pmSTL - SAN
1 stop15h 13mFrontier
Deal found 2/25$164
Wed 3/61:35 pmSAN - STL
1 stop18h 48mFrontier
Fri 3/86:18 pmSTL - SAN
1 stop28h 09mFrontier
Deal found 2/26$188
Tue 3/56:03 pmSAN - STL
1 stop12h 57mFrontier
Sun 3/1011:15 pmSTL - SAN
1 stop11h 02mFrontier
Deal found 2/26$193
Thu 2/296:44 pmSAN - STL
1 stop12h 16mFrontier
Tue 3/510:03 pmSTL - SAN
1 stop12h 11mFrontier
Deal found 2/25$199
Thu 3/219:17 amSAN - STL
1 stop10h 58mFrontier
Tue 3/2610:04 pmSTL - SAN
1 stop11h 43mFrontier
Deal found 2/25$203
Fri 3/810:59 pmSAN - STL
1 stop9h 24mMultiple Airlines
Sun 3/107:37 pmSTL - SAN
1 stop29h 50mMultiple Airlines
Deal found 2/25$229
Tue 2/278:50 amSAN - STL
1 stop10h 21mFrontier
Tue 3/510:03 pmSTL - SAN
1 stop12h 11mFrontier
Deal found 2/26$249
Thu 2/2910:15 pmSAN - STL
1 stop10h 58mMultiple Airlines
Tue 3/510:03 pmSTL - SAN
2 stops16h 42mMultiple Airlines
Deal found 2/25$274
Thu 2/296:44 pmSAN - STL
1 stop12h 16mFrontier
Sat 3/29:18 pmSTL - SAN
1 stop11h 59mFrontier
Deal found 2/25$278

San Diego to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between San Diego and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,409,476 searches. Data last updated February 26, 2024.
Check out some of the best flight deals from San Diego to St. Louis in 2024. Check back in a little while for more flight options.
Tue 5/711:34 amSAN - STL
1 stop8h 25mFrontier
Wed 5/88:04 pmSTL - SAN
1 stop26h 59mFrontier
Deal found 2/25$125
Mon 4/89:15 pmSAN - STL
1 stop11h 08mFrontier
Wed 4/108:04 pmSTL - SAN
1 stop13h 59mFrontier
Deal found 2/25$138
Wed 5/19:32 pmSAN - STL
1 stop10h 46mFrontier
Sun 5/53:29 pmSTL - SAN
1 stop7h 46mFrontier
Deal found 2/25$141
Tue 5/711:34 amSAN - STL
1 stop8h 25mFrontier
Wed 5/88:04 pmSTL - SAN
2 stops13h 50mFrontier
Deal found 2/25$153
Tue 4/910:07 amSAN - STL
1 stop9h 07mFrontier
Sat 4/207:51 pmSTL - SAN
1 stop13h 12mFrontier
Deal found 2/25$161
Thu 5/94:29 pmSAN - STL
1 stop15h 18mFrontier
Sun 5/123:29 pmSTL - SAN
1 stop7h 46mFrontier
Deal found 2/25$163
Tue 3/129:07 amSAN - STL
1 stop10h 07mFrontier
Sat 3/167:04 pmSTL - SAN
1 stop15h 13mFrontier
Deal found 2/25$164
Wed 4/249:32 pmSAN - STL
1 stop10h 46mFrontier
Sun 4/2810:59 pmSTL - SAN
1 stop10h 55mFrontier
Deal found 2/25$168
Fri 4/199:32 pmSAN - STL
1 stop10h 46mFrontier
Mon 4/228:04 pmSTL - SAN
1 stop12h 56mFrontier
Deal found 2/24$169

San Diego to St. Louis flights leaving soon

Find last-minute flight options from San Diego to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,409,476 searches. Data last updated February 26, 2024.
Book one of these great deals on flights from San Diego to St. Louis. Tip: verify your flight details before completing your reservation.
Wed 3/61:35 pmSAN - STL
1 stop18h 48mFrontier
Fri 3/86:18 pmSTL - SAN
1 stop28h 09mFrontier
Deal found 2/26$188
Tue 3/56:03 pmSAN - STL
1 stop12h 57mFrontier
Sun 3/1011:15 pmSTL - SAN
1 stop11h 02mFrontier
Deal found 2/26$193
Wed 3/69:04 amSAN - STL
2 stops23h 19mMultiple Airlines
Fri 3/86:18 pmSTL - SAN
1 stop6h 55mMultiple Airlines
Deal found 2/26$290
Tue 3/511:20 amSAN - STL
2 stops8h 36mUnited Airlines
Sun 3/105:30 pmSTL - SAN
1 stop7h 00mUnited Airlines
Deal found 2/26$465
Wed 3/611:20 amSAN - STL
2 stops8h 36mUnited Airlines
Fri 3/81:40 pmSTL - SAN
2 stops10h 46mUnited Airlines
Deal found 2/26$800
Wed 3/611:20 amSAN - STL
2 stops8h 36mUnited Airlines
Sun 3/108:30 amSTL - SAN
2 stops12h 01mUnited Airlines
Deal found 2/25$928

One-way flights to St. Louis from San Diego

Search for one-way flight options from San Diego to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,409,476 searches. Data last updated February 26, 2024.
Take a look at some of the one-way flights we've detected from San Diego to St. Louis. Users can also find round-trip San Diego to St. Louis flights by using the search form above.
Wed 4/1011:06 amSAN - STL
1 stop7h 33mFrontier
Deal found 2/25$60
Sat 3/99:17 pmSAN - STL
1 stop10h 06mFrontier
Deal found 2/25$66
Wed 5/228:15 pmSAN - STL
1 stop5h 53mSpirit Airlines
Deal found 2/25$68
Tue 5/2811:09 amSAN - STL
1 stop8h 23mFrontier
Deal found 2/25$80
Mon 3/1810:59 pmSAN - STL
1 stop9h 24mMultiple Airlines
Deal found 2/26$85
Thu 5/239:06 pmSAN - STL
1 stop11h 12mFrontier
Deal found 2/25$86
Wed 3/205:53 pmSAN - STL
1 stop14h 30mFrontier
Deal found 2/24$88
Wed 4/108:34 amSAN - STL
2 stops10h 05mFrontier
Deal found 2/25$89
Wed 3/135:53 pmSAN - STL
1 stop14h 30mFrontier
Deal found 2/25$93

Find flights from San Diego to St. Louis within your budget

Customize your flight search to find flights from San Diego to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,409,476 searches. Data last updated February 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$125 - $422

Route

Depart

Return

Price

San DiegoLambert-St Louis

SAN - STL

SANSTL

San Diego

Tue 5/7

1 stop8h 25m

Lambert-St Louis

Wed 5/8

1 stop26h 59m

$125

San DiegoLambert-St Louis

SAN - STL

SANSTL

San Diego

Wed 4/24

1 stop10h 46m

Lambert-St Louis

Sun 4/28

1 stop10h 55m

$129

San DiegoLambert-St Louis

SAN - STL

SANSTL

San Diego

Mon 4/8

1 stop11h 08m

Lambert-St Louis

Wed 4/10

1 stop13h 59m

$138

San DiegoLambert-St Louis

SAN - STL

SANSTL

San Diego

Wed 5/1

1 stop10h 46m

Lambert-St Louis

Sun 5/5

1 stop7h 46m

$141

San DiegoLambert-St Louis

SAN - STL

SANSTL

San Diego

Tue 5/7

1 stop8h 25m

Lambert-St Louis

Wed 5/8

2 stops13h 50m

$153

San DiegoLambert-St Louis

SAN - STL

SANSTL

San Diego

Wed 5/22

1 stop20h 08m

Lambert-St Louis

Mon 5/27

1 stop26h 40m

$209

San DiegoLambert-St Louis

SAN - STL

SANSTL

San Diego

Tue 4/9

1 stop14h 47m

Lambert-St Louis

Sat 4/20

2 stops12h 52m

$213

San DiegoLambert-St Louis

SAN - STL

SANSTL

San Diego

Tue 5/7

1 stop6h 05m

Lambert-St Louis

Wed 5/8

1 stop8h 21m

$236

San DiegoLambert-St Louis

SAN - STL

SANSTL

San Diego

Tue 3/12

2 stops7h 38m

Lambert-St Louis

Wed 3/13

1 stop5h 39m

$422

Flights are sorted by cheapest first

Deals found on 2/25

When is the best time to book a flight from San Diego to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from San Diego to St. Louis. Price data was last updated on January 28, 2024.
The best time to book flights from San Diego to St. Louis is 40 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from San Diego to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from San Diego to St. Louis. Price data was last updated on February 18, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their San Diego to St. Louis flight should consider departing on Monday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to St. Louis by month

Plan your trip from San Diego to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from San Diego to St. Louis is currently $79 while a round-trip flight costs $196. Price data was last updated on February 18, 2024.

Currently, October is the cheapest month in which you can book a flight from San Diego to St. Louis (average of $323). Flying from San Diego to St. Louis in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$326

February

$330

March

$346

April

$361

May

$361

June

$389

July

$383

August

$338

September

$324

October

$323

November

$335

December

$323

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated February 26, 2024.
To help decide which airline to fly from San Diego to St. Louis, see what other customers have to say about Southwest, Delta and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,500 reviews

Boarding

8.4

Crew

8.8

Food

7.4

Overall

8.2

Entertainment

7.9

Comfort

8.1

Reviews

1 / 10

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.

Southwest
8.2
Very good
6,500 reviews
Southwest
8.2
Very good
6,500 reviews

Boarding

8.4

Crew

8.8

Food

7.4

Overall

8.2

Entertainment

7.9

Comfort

8.1

Reviews

1 / 10

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.

8.1
Very good
9,254 reviews
Southwest
8.2
Very good
6,500 reviews

Boarding

8.4

Crew

8.8

Food

7.4

Overall

8.2

Entertainment

7.9

Comfort

8.1

Reviews

1 / 10

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.

8.1
Very good
11,853 reviews
Southwest
8.2
Very good
6,500 reviews

Boarding

8.4

Crew

8.8

Food

7.4

Overall

8.2

Entertainment

7.9

Comfort

8.1

Reviews

1 / 10

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.

7.4
Good
11,829 reviews
Southwest
8.2
Very good
6,500 reviews

Boarding

8.4

Crew

8.8

Food

7.4

Overall

8.2

Entertainment

7.9

Comfort

8.1

Reviews

1 / 10

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.

7.3
Good
15,591 reviews
Southwest
8.2
Very good
6,500 reviews

Boarding

8.4

Crew

8.8

Food

7.4

Overall

8.2

Entertainment

7.9

Comfort

8.1

Reviews

1 / 10

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.

Related info for your journey

Find useful and relevant information for your journey from San Diego to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from San Diego to St. Louis?

To fly from San Diego to St. Louis, you need to book a flight from San Diego (SAN) to Lambert-St Louis (STL). Nonstop flights to Lambert-St Louis from San Diego take 5h 24m on average. When it comes time to book airfare, you have a few options: there are 2 outbound flights from San Diego to Lambert-St Louis offered by 6 different airlines.

Can I find flights from San Diego to St. Louis for under $200 on Cheapflights?

Yes, there are multiple flights from San Diego to St. Louis for under $200. The cheapest flight booked recently is on Frontier for just $125, but on average you can expect to pay $177.

Are there last-minute flights available from San Diego to St. Louis for under $200?

There are currently 6+ open flights from San Diego to St. Louis within the next 7 days for less than $200.

What are the cheapest airlines flying from San Diego to St. Louis round-trip?

Cheapflights users have booked flights from San Diego to St. Louis round-trip from $125. Another airline that can offer you cheap pricing is Delta. Frontier is priced at 71% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from San Diego to St. Louis one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $60. Users have also found prices from $68 and $118 on Spirit Airlines and American Airlines, respectively.

What are the most popular airlines that fly from San Diego to St. Louis?

What does SAN to STL mean?

These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a San Diego Airport to Lambert-St Louis Airport flight would often be abbreviated as a SAN to STL flight.

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Diego to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from San Diego to St. Louis

Discover the top 6 airlines that operate flights from San Diego to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,409,476 searches. Data last updated February 26, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$134Average$225FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$147Average$292FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$235Average$474FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$297Average$455FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$298Average$456FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest$482Average$549FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Search flights from San Diego to St. Louis by cabin class

Find flights from San Diego to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from San Diego to St. Louis

Find hourly flight availability from San Diego to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 26, 2024.
1%of flight departuresEarly morningMidnight to 6 am
71%of flight departuresMorning6 am to noon
28%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from San Diego to St. Louis

Explore weekly flight availability from San Diego to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 26, 2024.
Sunday1daily flight
Monday4daily flights
Tuesday3daily flights
Wednesday3daily flights
Thursday4daily flights
Friday4daily flights
Saturday1daily flight

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

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How does Cheapflights help users find flights from San Diego to St. Louis?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to St. Louis from San Diego today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from San Diego to St. Louis?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to St. Louis from San Diego.

Can Cheapflights find flights from San Diego to St. Louis with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Diego to St. Louis flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from San Diego to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on San Diego to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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