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El Salvador

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

STL — SAL
Sep 6 — Sep 131
Sun 9/6
Sun 9/13
1 adult, Economy
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Find 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 August 7, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Popular in

December

Cheapest in

January

Average price

$609
Provider with most accurate pricing for Lambert-St Louis-San Salvador El Salvador Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-San Salvador El Salvador Intl flights.
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Highest demand for flights based on searches. 23% potential increase in price ($204 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($65 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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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 August 7, 2026.
Read through reviews of airlines operating flights from St. Louis to El Salvador, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,499 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Overall

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,499 reviews
Delta
7.8
Good
8,499 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Overall

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,080 reviews
Delta
7.8
Good
8,499 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Overall

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,874 reviews
Delta
7.8
Good
8,499 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Overall

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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.

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Top 3 airlines flying from St. Louis to El Salvador

Discover the top 3 airlines 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 August 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$423Average$477FlexibilityNo cancel feeOn-time71%
DeltaCheapest$441Average$531FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$447Average$557FlexibilityNo cancel feeOn-time69%

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