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$135+ Cheap flights from St. Louis (STL) to Belize

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BZE
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
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 March 31, 2025.

Round-trip from

$344
(United Airlines)

One-way from

$135
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$603
From Lambert-St Louis to Belize
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One-way flight from Lambert-St Louis to Belize
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Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 31, 2025.

This United Airlines deal was found by Cheapflights users on 3/30. 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 5/146:00 amSTL - BZE
1 stop6h 35mUnited Airlines
Wed 5/2112:40 pmBZE - STL
1 stop8h 23mUnited Airlines
Deal found 3/30$344
This American Airlines deal was found by Cheapflights users on 3/29. 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 10/24:49 pmSTL - BZE
2 stops18h 26mAmerican Airlines
Thu 10/93:10 pmBZE - STL
2 stops18h 54mAmerican Airlines
Deal found 3/29$368
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/189:50 amSTL - BZE
3 stops28h 15mMultiple Airlines
Mon 4/217:00 amBZE - STL
2 stops33h 15mMultiple Airlines
Deal found 3/31$797
This Southwest deal was found by Cheapflights users on 3/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/187:25 amSTL - BZE
1 stop5h 50mSouthwest
Mon 4/211:10 pmBZE - STL
1 stop8h 40mSouthwest
Deal found 3/31$834

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 March 31, 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

Wed 5/14

6:00 am-11:35 am

1 stop6h 35m

Belize City Philip S.W.Goldson

Wed 5/21

12:40 pm-10:03 pm

1 stop8h 23m

$344

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Mon 5/5

7:30 pm-2:14 pm

2 stops19h 44m

Belize City Philip S.W.Goldson

Sat 5/10

3:14 pm-9:54 am

2 stops17h 40m

$368

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Fri 4/18

9:50 am-1:05 pm

3 stops28h 15m

Belize City Philip S.W.Goldson

Mon 4/21

7:00 am-5:15 pm

2 stops33h 15m

$797

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Fri 4/18

7:25 am-12:15 pm

1 stop5h 50m

Belize City Philip S.W.Goldson

Mon 4/21

1:10 pm-10:50 pm

1 stop8h 40m

$834

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Sat 7/12

8:01 pm-12:00 pm

2 stops16h 59m

$135

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Fri 7/11

5:30 pm-9:35 am

2 stops17h 05m

$194

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Fri 7/11

7:24 pm-2:30 pm

3 stops20h 06m

$709

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

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 March 31, 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 March 31, 2025.
Southwest
8.0
Very good
4,276 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,276 reviews
Southwest
8.0
Very good
4,276 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,614 reviews
Southwest
8.0
Very good
4,276 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,276 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$328Average$463FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$355Average$498FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$368Average$515FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$473Average$488FlexibilityNo cancel feeOn-time63%
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