STL - SAL

$243 Find Cheap Flights from St. Louis to San Salvador - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$607
Typical prices: $474-$753
United Airlines
Sat 11/24Sat 12/1
STL - SAL • 1 stop
Cheapest one-way
$243
Typical prices: $203-$372
Frontier
Tue 10/23
STL - SAL • 1 stop
Nonstop flights
Not available
There are currently no direct flights between St. Louis and San Salvador. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 26% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dallas/Fort Worth (DFW)
Cheapest • Avg $624 (round-trip)
Atlanta Hartsfield-Jackson (ATL)
Shortest trip • 7h 45m (one-way)
Insights
Insights
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We hope you love your trip to San Salvador!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to San Salvador (STL-SAL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to San Salvador

Tue, Nov 24 - Tue, Dec 1
United Airlines Logo
6:15 am - 9:19 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
15h 04m1 stop Houston George Bush Intcntl
United Airlines Logo
7:00 am - 10:30 pmSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
15h 30m1 stop Houston George Bush Intcntl
$607United Airlines
Tue, Nov 24 - Tue, Dec 1
United Airlines Logo
6:15 am - 9:19 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
15h 04m1 stop Houston George Bush Intcntl
United Airlines Logo
4:40 pm - 9:45 amSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
17h 05m1 stop Houston George Bush Intcntl
$607United Airlines
Thu, Nov 12 - Tue, Nov 17
American Airlines Logo
7:06 pm - 2:05 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
18h 59m2 stops Dallas/Fort Worth Miami
American Airlines Logo
2:57 pm - 11:33 pmSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
8h 36m1 stop Dallas/Fort Worth
$611American Airlines
Thu, Nov 12 - Tue, Nov 17
American Airlines Logo
7:06 pm - 2:05 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
18h 59m2 stops Dallas/Fort Worth Miami
American Airlines Logo
3:05 pm - 9:29 amSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
18h 24m2 stops Miami Dallas/Fort Worth
$611American Airlines
Sun, Jan 17 - Thu, Jan 21
United Airlines Logo
1:09 pm - 1:19 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
24h 10m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
4:40 pm - 12:13 pmSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
19h 33m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
$611United Airlines
Thu, Nov 12 - Tue, Nov 17
American Airlines Logo
6:15 pm - 12:08 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
17h 53m1 stop Miami
American Airlines Logo
1:08 pm - 9:47 pmSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
8h 39m1 stop Miami
$621American Airlines
Fri, Oct 23 - Sat, Oct 31
Multiple Airlines Logo
6:35 pm - 12:16 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
18h 41m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
6:42 pm - 6:40 pmSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
46h 58m2 stops Washington, D.C. Dulles Intl Atlanta Hartsfield-Jackson
$699Multiple Airlines
Sun, Nov 15 - Mon, Nov 23
Delta Logo
6:00 am - 1:14 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
7h 14m1 stop Atlanta Hartsfield-Jackson
Delta Logo
2:39 pm - 9:42 pmSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
7h 03m1 stop Atlanta Hartsfield-Jackson
$740Delta
Mon, Oct 26 - Mon, Nov 2
Multiple Airlines Logo
6:35 pm - 4:42 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
23h 07m2 stops Atlanta Hartsfield-Jackson Houston George Bush Intcntl
Multiple Airlines Logo
8:03 pm - 3:23 pmSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
43h 20m3 stops Washington, D.C. Dulles Intl Atlanta Hartsfield-Jackson Denver Intl
$745Multiple Airlines
Fri, Oct 23 - Sat, Oct 31
Multiple Airlines Logo
6:35 pm - 4:42 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
23h 07m2 stops Atlanta Hartsfield-Jackson Houston George Bush Intcntl
Multiple Airlines Logo
9:12 am - 12:19 pmSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
26h 07m3 stops Houston George Bush Intcntl Atlanta Hartsfield-Jackson Dallas/Fort Worth
$786Multiple Airlines
Booking Insights

Price, demand and travel trends for St. Louis to San Salvador flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from St. Louis to San Salvador?

Round-trip flights from St. Louis to San Salvador typically range from $474 to $753. The lowest price found in the past 5 days was $607, on United Airlines.

What's the cheapest day of the week to fly from St. Louis to San Salvador?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from St. Louis to San Salvador. It’s 8% cheaper than the average day, while Sunday is the most expensive, with prices 20% higher.

What’s the cheapest month to fly from St. Louis to San Salvador?

•January is the cheapest month to fly from St. Louis to San Salvador at $423 round-trip.
•July ($924) and December ($892) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 118% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for St. Louis to San Salvador flights

Low season

October

Cheapest flight

$243
Beat the crowds with an average 25% drop in travelers.
The most popular month to fly with an average 140% increase in travelers.
One-way flight from St. Louis to San Salvador

When to book flights from St. Louis to San Salvador

Are your dates flexible? Find out the best times to travel from St. Louis to San Salvador based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to San Salvador flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from St. Louis to San Salvador?

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

    • Economy Class
    • First Class

  • How long is a flight from St. Louis to San Salvador?

    A nonstop flight from St. Louis to San Salvador takes 00m, covering 1,749 miles.

  • Do I need a passport to fly from St. Louis to San Salvador?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a St. Louis to San Salvador flight?

    Round-trip flights from St. Louis to San Salvador range from $474 to $753, with an average of $573 over the past 12 months. Anything below $474 counts as a good deal.

  • Have flight prices from St. Louis to San Salvador changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $607 to $1,493. That means the highest observed fare was about 2x higher than the lowest one.

  • How are flight prices from St. Louis to San Salvador looking right now?

    One-way fares from St. Louis to San Salvador are currently higher than usual. Average one-way flight prices are about $334, which is 27% above the typical average for this route.

  • What car rental options are available at San Salvador El Salvador Intl Airport (SAL)?

    San Salvador El Salvador Intl Airport (SAL) hosts 5 major car rental companies, with daily rates starting from around $8 for economy cars. Top options include:

    • Budget
    • Europcar
    • Hertz
    • Sixt
    • Avis

  • Which airports can I use when flying from St. Louis to San Salvador?

    Flights from St. Louis to San Salvador usually depart from Lambert-St Louis (STL) and arrive at San Salvador El Salvador Intl (SAL).

  • Which airports do connecting flights from St. Louis to San Salvador pass through?

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

    • Houston George Bush Intcntl (IAH) - 53% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 22% of one-stop connections
    • Dallas/Fort Worth (DFW) - 19% of one-stop connections
    • Miami (MIA) - 5% of one-stop connections

  • Can I save money by using flexible dates for flights from St. Louis to San Salvador?

    Yes. Flexible dates can save you up to 24% on flights from St. Louis to San Salvador. Thursday is the cheapest departure day at $528 round-trip on average, while Sunday is the most expensive at $693, a difference of $165.

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

  • How much time can I save by choosing a different layover airport from St. Louis to San Salvador?

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 7h 23m, compared with 7h 45m via Atlanta Hartsfield-Jackson (ATL) and 8h via Houston George Bush Intcntl (IAH).

  • What is the time difference between St. Louis and San Salvador?

    San Salvador is 1 hour behind St. Louis (Central Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking St. Louis to San Salvador flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Sunday. On this route, Thursday flights average $528, about $165 less than Sunday fares (24% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to San Salvador trip for January. Fares historically average $423 round-trip in that month - typically $501 less than the most expensive month, which is July (based on the last 12 months).

More options for your flight from St. Louis to San Salvador

Complete your trip to San Salvador with a hotel stay or car rental

Car rentals in San Salvador
Hotels in San Salvador
Vacations in San Salvador