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$348+ 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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BZE
Apr 30 — May 71
Wed 4/30
Wed 5/7
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 April 25, 2025.

Round-trip from

$348
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$468
From Lambert-St Louis to Belize
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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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 April 25, 2025.

This American Airlines deal was found by Cheapflights users on 4/25. 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.
Tue 6/177:47 pmSTL - BZE
2 stops17h 24mAmerican Airlines
Wed 6/2511:15 amBZE - STL
2 stops19h 59mAmerican Airlines
Deal found 4/25$348
This United Airlines deal was found by Cheapflights users on 4/25. 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.
Mon 6/25:00 amSTL - BZE
2 stops9h 33mUnited Airlines
Sat 6/710:45 amBZE - STL
1 stop9h 04mUnited Airlines
Deal found 4/25$364

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 April 25, 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

Tue 6/17

7:47 pm-12:11 pm

2 stops17h 24m

Belize City Philip S.W.Goldson

Wed 6/25

11:15 am-8:14 am

2 stops19h 59m

$348

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Mon 6/2

5:00 am-1:33 pm

2 stops9h 33m

Belize City Philip S.W.Goldson

Sat 6/7

10:45 am-8:49 pm

1 stop9h 04m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

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.

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

Find hourly flight availability from St. Louis to Belize. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 25, 2025.

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

Rainfall in Belize by month

Plan your trip to Belize by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belize ranges from 1.6 - 9.8 inches per month. October is typically the wettest month, when rainfall can reach 9.8 in. March is typically the driest time to visit Belize when rainfall is around 1.6 in.

Temperature in Belize by month

Plan your trip to Belize by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belize, use this chart to help with planning. For those seeking warmer temperatures, May is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

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 April 25, 2025.
United Airlines
7.4
Good
8,685 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,685 reviews
United Airlines
7.4
Good
8,685 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,685 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • 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 April 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$328Average$465FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$356Average$500FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$363Average$515FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$473Average$488FlexibilityNo cancel feeOn-time63%

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