STL - SAL

$295 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
$587
Typical prices: $474-$753
United Airlines
Sat 11/24Sat 12/1
STL - SAL • 1 stop
Cheapest one-way
$295
Typical prices: $203-$372
Multiple Airlines
Fri 10/12
STL - SAL • 2 stops
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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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 - 1:19 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
7h 04m1 stop Houston George Bush Intcntl
United Airlines Logo
4:40 pm - 9:40 amSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
17h 00m1 stop Houston George Bush Intcntl
$587United 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
11:54 pm - 9:49 amSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
9h 55m1 stop Newark
$587United Airlines
Tue, Nov 24 - Tue, Dec 1
United Airlines Logo
6:15 am - 1:19 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
7h 04m1 stop Houston George Bush Intcntl
United Airlines Logo
4:40 pm - 12:10 pmSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
19h 30m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
$591United 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
11:54 pm - 12:10 pmSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
12h 16m2 stops Newark Chicago O'Hare Intl
$591United Airlines
Tue, Nov 24 - Tue, Dec 1
American Airlines Logo
6:55 pm - 12:11 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
17h 16m2 stops Dallas/Fort Worth Miami
American Airlines Logo
3:05 pm - 9:44 amSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
18h 39m2 stops Miami Charlotte Douglas
$766American Airlines
Tue, Nov 24 - Tue, Dec 1
American Airlines Logo
5:29 pm - 12:11 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
18h 42m2 stops Chicago O'Hare Intl Miami
American Airlines Logo
3:05 pm - 9:44 amSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
18h 39m2 stops Miami Charlotte Douglas
$766American Airlines
Fri, Dec 18 - Sun, Dec 27
Frontier Logo
6:05 pm - 12:20 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
42h 15m2 stops Orlando Atlanta Hartsfield-Jackson
Frontier Logo
2:01 pm - 7:09 amSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
17h 08m1 stop Atlanta Hartsfield-Jackson
$868Frontier
Tue, Nov 17 - Tue, Jan 5
American Airlines Logo
5:00 am - 2:05 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
9h 05m1 stop Miami
American Airlines Logo
3:11 pm - 1:13 pmSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
22h 02m2 stops Miami Charlotte Douglas
$868American Airlines
Fri, Dec 18 - Sun, Dec 27
Frontier Logo
6:05 pm - 4:45 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
22h 40m1 stop Orlando
Frontier Logo
2:01 pm - 7:09 amSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
17h 08m1 stop Atlanta Hartsfield-Jackson
$906Frontier
Fri, Dec 18 - Sun, Dec 27
Frontier Logo
2:59 pm - 4:45 pmSTL  Lambert-St Louis-SAL San Salvador El Salvador Intl
25h 46m2 stops Atlanta Hartsfield-Jackson Orlando
Frontier Logo
2:01 pm - 12:41 amSAL  San Salvador El Salvador Intl-STL Lambert-St Louis
34h 40m2 stops Atlanta Hartsfield-Jackson Orlando
$1,133Frontier
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 from St. Louis to San Salvador 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 start at $587. Prices are typical for this route right now, with typical round-trip fares ranging from $474 to $753. The lowest price found in the past 5 days was $587 on United Airlines.

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

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

What is 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

$295
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 8% lower on average.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

  • 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

  • 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

    Houston George Bush Intcntl (IAH) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 24% on the St. Louis to San Salvador route. 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 long is a flight from St. Louis to San Salvador?

    A nonstop flight from St. Louis to San Salvador takes 0h 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.

  • 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 $587 to $1,479. That means the highest observed fare was about 3x 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 $317, which is 21% above the typical average for this route.

  • 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 00m 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.

  • 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

  • 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.

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 can be flexible, aim for a Thursday departure instead of Sunday. On this route, Thursday flights average $528 - about $165 less than Sunday (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