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$275+ Cheap flights from St. Louis (STL) to Belize

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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BZE
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from St. Louis to Belize

Keep the following information in mind while searching for St. Louis to Belize flight deals. Data was last updated September 11, 2025.

Round-trip from

$275
(American Airlines)

Popular in

March

Cheapest in

September

Average price

$370
From Lambert-St Louis to Belize
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from St. Louis to Belize

Cheapest flights from St. Louis to Belize
Explore the most affordable flight options available from St. Louis to Belize. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/178:05 pmSTL - BZE
2 stops19h 17mAmerican Airlines
Tue 10/211:50 pmBZE - STL
1 stop9h 06mAmerican Airlines
Deal found 9/8$275
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/275:11 amSTL - BZE
1 stop10h 09mAmerican Airlines
Tue 11/41:12 pmBZE - STL
1 stop9h 46mAmerican Airlines
Deal found 9/11$308
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/28:03 pmSTL - BZE
2 stops17h 29mAmerican Airlines
Thu 10/93:30 pmBZE - STL
1 stop7h 26mAmerican Airlines
Deal found 9/10$315
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/252:38 pmSTL - BZE
2 stops22h 12mAmerican Airlines
Sat 11/13:30 pmBZE - STL
1 stop7h 26mAmerican Airlines
Deal found 9/9$332
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/94:25 pmSTL - BZE
2 stops20h 25mAmerican Airlines
Thu 10/163:30 pmBZE - STL
1 stop7h 26mAmerican Airlines
Deal found 9/10$348
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/98:05 pmSTL - BZE
2 stops16h 45mAmerican Airlines
Mon 10/133:30 pmBZE - STL
2 stops17h 07mAmerican Airlines
Deal found 9/9$372
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/246:15 amSTL - BZE
1 stop6h 20mUnited Airlines
Fri 10/3112:18 pmBZE - STL
1 stop9h 04mUnited Airlines
Deal found 9/8$381

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Belize 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 September 11, 2025.
Use the filters below to find and compare flights from St. Louis to Belize that are best for you.

Fly from

St. Louis

Fly to

Belize

Route

Depart

Return

Price

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Fri 10/17

8:05 pm-2:22 pm

2 stops19h 17m

Belize City Philip S.W.Goldson

Tue 10/21

1:50 pm-9:38 am

2 stops18h 48m

$275

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Mon 10/27

5:11 am-2:20 pm

1 stop10h 09m

Belize City Philip S.W.Goldson

Tue 11/4

1:12 pm-10:58 pm

1 stop9h 46m

$308

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Thu 10/9

8:05 pm-11:50 am

2 stops16h 45m

Belize City Philip S.W.Goldson

Mon 10/13

3:30 pm-9:37 am

2 stops17h 07m

$372

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Fri 10/24

6:15 am-11:35 am

1 stop6h 20m

Belize City Philip S.W.Goldson

Fri 10/31

12:18 pm-10:22 pm

1 stop9h 04m

$381

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Mon 11/17

7:05 am-12:32 pm

1 stop5h 27m

Belize City Philip S.W.Goldson

Mon 11/24

1:57 pm-9:58 pm

1 stop8h 01m

$382

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Best time to book a flight from St. Louis to Belize

Have a flexible travel schedule? Discover the best time to fly to Belize from St. Louis 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 St. Louis to Belize

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

Currently, August is the cheapest month in which you can book a flight from St. Louis to Belize (average of $363). Flying from St. Louis to Belize in March is currently the most expensive (average of $653). 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.

Reviews of airlines servicing Belize

Get insights into the airlines that provide service to Belize. 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 Belize. Reviews last updated September 11, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from St. Louis to Belize have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Belize. 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 Belize?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Belize. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • How long is the flight from St. Louis to Belize?

    Airlines like American Airlines fly from St. Louis to Belize in about 19h 17m. The time it takes to get you to your destination can typically vary by up to . St. Louis and Belize are separated by a distance of 1470 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Belize 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 Belize?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Belize (average of $363). Flying from St. Louis to Belize in March is currently the most expensive (average of $653). 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

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Alternative routes for St. Louis to Belize

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to Belize

Discover the top 4 airlines that operate flights from St. Louis to Belize. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$287Average$426FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$353Average$489FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$363Average$497FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$463Average$574FlexibilityNo cancel feeOn-time63%

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