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$247+ Cheap flights from Missouri to San Salvador (SAL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SAL
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
1 adult, Economy
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Cheap flight deals from Missouri to San Salvador

Cheapest flights from Missouri to San Salvador
Explore the most affordable flight options available from Missouri to San Salvador. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.

This United Airlines deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/103:00 pmMCI - SAL
1 stop6h 19mUnited Airlines
Sat 12/131:10 amSAL - MCI
1 stop13h 49mUnited Airlines
Deal found 12/7$471
This Kiwi.com deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:15 pmMCI - SAL
1 stop20h 32mSpirit Airlines
Tue 1/63:52 pmSAL - MCI
1 stop25h 18mSpirit Airlines
Deal found 12/9$473
This United Airlines deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/108:08 amMCI - SAL
1 stop7h 16mUnited Airlines
Tue 12/161:10 amSAL - MCI
2 stops13h 09mUnited Airlines
Deal found 12/8$475
This United Airlines deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/94:30 pmMCI - SAL
1 stop28h 49mUnited Airlines
Tue 12/166:55 amSAL - MCI
1 stop7h 22mUnited Airlines
Deal found 12/8$481
This United Airlines deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:08 amMCI - SAL
1 stop13h 11mUnited Airlines
Sun 12/286:55 amSAL - MCI
1 stop15h 35mUnited Airlines
Deal found 12/8$574
This American Airlines deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:36 amMCI - SAL
2 stops10h 13mAmerican Airlines
Sun 12/283:43 pmSAL - MCI
1 stop9h 11mAmerican Airlines
Deal found 12/8$586

Find flight deals from Missouri to San Salvador

Keep the following information in mind while searching for Missouri to San Salvador flight deals. Data was last updated December 9, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$247
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$1,187
Provider with most accurate pricing for Lambert-St Louis-San Salvador El Salvador Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-San Salvador El Salvador Intl flights.
Search Deals
From Missouri to San Salvador El Salvador Intl
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($217 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to San Salvador 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 2,558,603 searches. Data last updated December 9, 2025.
Use the filters below to find and compare flights from Missouri to San Salvador that are best for you.

Fly from

Missouri

Fly to

San Salvador

Route

Depart

Return

Price

Kansas CitySan Salvador

MCI - SAL

MCISAL

Kansas City

Fri 2/6

12:45 pm-1:36 pm

1 stop24h 51m

San Salvador El Salvador Intl

Tue 2/10

4:02 pm-4:09 pm

2 stops24h 07m

$322

Kansas CitySan Salvador

MCI - SAL

MCISAL

Kansas City

Wed 1/28

11:29 am-9:19 pm

2 stops9h 50m

San Salvador El Salvador Intl

Wed 2/18

6:55 am-10:40 pm

1 stop15h 45m

$424

Kansas CitySan Salvador

MCI - SAL

MCISAL

Kansas City

Tue 1/20

5:50 am-1:10 pm

1 stop7h 20m

San Salvador El Salvador Intl

Wed 2/18

2:35 pm-11:54 pm

1 stop9h 19m

$424

Kansas CitySan Salvador

MCI - SAL

MCISAL

Kansas City

Thu 1/22

8:05 am-9:19 pm

1 stop13h 14m

San Salvador El Salvador Intl

Thu 1/29

6:55 am-2:11 pm

1 stop7h 16m

$424

Kansas CitySan Salvador

MCI - SAL

MCISAL

Kansas City

Tue 1/20

5:50 am-1:10 pm

1 stop7h 20m

San Salvador El Salvador Intl

Sun 2/15

2:35 pm-9:58 pm

1 stop7h 23m

$441

Kansas CitySan Salvador

MCI - SAL

MCISAL

Kansas City

Wed 1/21

8:05 am-3:24 pm

1 stop7h 19m

San Salvador El Salvador Intl

Sun 1/25

6:55 am-10:40 pm

1 stop15h 45m

$441

Kansas CitySan Salvador

MCI - SAL

MCISAL

Kansas City

Fri 1/23

8:05 am-3:24 pm

1 stop7h 19m

San Salvador El Salvador Intl

Mon 2/16

4:40 pm-9:32 am

1 stop16h 52m

$441

Kansas CitySan Salvador

MCI - SAL

MCISAL

Kansas City

Thu 1/22

3:00 pm-9:19 pm

1 stop6h 19m

San Salvador El Salvador Intl

Sat 2/21

4:40 pm-9:32 am

1 stop16h 52m

$441

Kansas CitySan Salvador

MCI - SAL

MCISAL

Kansas City

Mon 3/30

7:55 pm-1:47 pm

2 stops18h 52m

San Salvador El Salvador Intl

Thu 4/30

2:30 pm-10:39 am

2 stops19h 09m

$442

Kansas CitySan Salvador

MCI - SAL

MCISAL

Kansas City

Mon 12/15

10:36 am-7:40 pm

1 stop9h 04m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 14 results
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Best time to book a flight from Missouri to San Salvador

Have a flexible travel schedule? Discover the best time to fly to San Salvador from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to San Salvador

What is the cheapest month to book a flight from Missouri to San Salvador?

Currently, October is the cheapest month in which you can book a flight from Missouri to San Salvador (average of $364). Flying from Missouri to San Salvador in December is currently the most expensive (average of $463). 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 MO to SAL?

Find hourly flight availability from Missouri to San Salvador. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 9, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 25% on flights from Missouri to San Salvador by exploring options for tickets in the evening.

Related info for your journey

Find useful and relevant information for your journey from Missouri to San 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 into for flights to San Salvador from Missouri?

    Most people fly into San Salvador El Salvador Intl (SAL) if they book a flight to San Salvador from Missouri. El Salvador Intl is conveniently located just 20.5 mi from San Salvador’s city center.

  • How long is the flight from Missouri to San Salvador?

    A quick flight from Missouri to San Salvador can take about 7h 20m. United Airlines provides one of the quickest options available for as low as $424. There are 1818 mi between Missouri and San Salvador. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Missouri to San Salvador that include hotel bookings?

    Yes. In addition to deals on Missouri to San Salvador flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to San Salvador?

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

  • Can I find deals for business class flights from Missouri to San Salvador?

    Yes. Cheapflights offers flight deals from Missouri to San 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 Missouri to San Salvador?

    Currently, October is the cheapest month in which you can book a flight from Missouri to San Salvador (average of $364). Flying from Missouri to San Salvador in December is currently the most expensive (average of $463). 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.

See more FAQs

Traveling to a place near San Salvador?

Book flights to San Salvador if you plan to visit one of these locations
Acajutla
Sonsonate
El Cuco
La Libertad

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Alternative routes for Missouri to San Salvador

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Top 3 airlines flying from Missouri to San Salvador

Discover the top 3 airlines that operate flights from Missouri to San 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 December 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$366Average$580FlexibilityNo cancel feeOn-time71%
DeltaCheapest$397Average$557FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$403Average$510FlexibilityNo cancel feeOn-time69%

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