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El Salvador

Cheap flights from St. Louis (STL) to El Salvador

STL — SAL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from St. Louis to El Salvador

Keep the following information in mind while searching for St. Louis to El Salvador flight deals. Data was last updated September 17, 2025.

Popular in

December

Cheapest in

August

Average price

$515
Highest demand for flights based on searches. 17% potential increase in price ($128 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Cheapflights Insights

Everything you need to know about your flight from St. Louis to El Salvador

What is the cheapest month to book a flight from St. Louis to El Salvador?

Currently, September is the cheapest month in which you can book a flight from St. Louis to El Salvador (average of $260). Flying from St. Louis to El Salvador in December is currently the most expensive (average of $588). 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.

What is the cheapest time of day to fly from STL to SV?

Find hourly flight availability from St. Louis to El Salvador. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from St. Louis to El Salvador, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing El Salvador

Get insights into the airlines that provide service to El Salvador. 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 El Salvador. Reviews last updated September 17, 2025.
Read through reviews of airlines operating flights from St. Louis to El Salvador, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Related info for your journey

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

  • What airport do you fly from for flights from St. Louis to El Salvador?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to El Salvador.

  • Can I find deals for flights from St. Louis to El Salvador that include hotel bookings?

    Yes. In addition to deals on St. Louis to El Salvador flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to El Salvador?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to El Salvador.

  • Can I find deals for business class flights from St. Louis to El Salvador?

    Yes. Cheapflights offers flight deals from St. Louis to El Salvador by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to El Salvador?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to El Salvador (average of $260). Flying from St. Louis to El Salvador in December is currently the most expensive (average of $588). 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.

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Alternative routes for St. Louis to El Salvador

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Top airline flying from St. Louis to El Salvador

Discover the top airline that operate flights from St. Louis to El Salvador. 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 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$427Average$549FlexibilityNo cancel feeOn-time69%

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