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Cheap flights from St. Louis to Belize from $143

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Belize departing on 5/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Belize

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:20 am - 2:30 pm
STL
-
BZE
10h 10m
1 stop
American Airlines Logo
1:52 pm - 10:24 pm
BZE
-
STL
7h 32m
1 stop
$338American Airlines
Wed, Apr 22 - Wed, Apr 29
American Airlines Logo
5:20 am - 2:30 pm
STL
-
BZE
10h 10m
1 stop
American Airlines Logo
3:31 pm - 9:26 am
BZE
-
STL
16h 55m
2 stops
$347American Airlines
Wed, Apr 22 - Wed, Apr 29
Delta Logo
6:00 am - 11:16 am
STL
-
BZE
6h 16m
1 stop
Delta Logo
12:40 pm - 9:29 pm
BZE
-
STL
7h 49m
1 stop
$351Delta
Tue, May 5 - Fri, May 15
American Airlines Logo
5:24 am - 11:05 am
STL
-
BZE
6h 41m
1 stop
American Airlines Logo
3:31 pm - 10:16 am
BZE
-
STL
17h 45m
1 stop
$356American Airlines
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
6:54 pm - 10:40 am
STL
-
BZE
16h 46m
1 stop
American Airlines Logo
12:14 pm - 10:59 pm
BZE
-
STL
9h 45m
1 stop
$361American Airlines
Fri, May 8 - Wed, May 13
American Airlines Logo
6:54 pm - 11:05 am
STL
-
BZE
17h 11m
2 stops
American Airlines Logo
1:52 pm - 8:27 am
BZE
-
STL
17h 35m
2 stops
$366American Airlines
Fri, May 8 - Wed, May 13
Delta Logo
6:00 am - 11:09 am
STL
-
BZE
6h 09m
1 stop
Delta Logo
12:40 pm - 11:59 pm
BZE
-
STL
10h 19m
1 stop
$371Delta
Sat, May 9 - Wed, May 13
American Airlines Logo
6:55 pm - 11:05 am
STL
-
BZE
17h 10m
2 stops
American Airlines Logo
1:52 pm - 8:24 am
BZE
-
STL
17h 32m
2 stops
$375American Airlines
Thu, Apr 23 - Thu, Apr 30
American Airlines Logo
5:24 am - 11:05 am
STL
-
BZE
6h 41m
1 stop
American Airlines Logo
3:31 pm - 10:16 am
BZE
-
STL
17h 45m
1 stop
$380American Airlines
Thu, Apr 23 - Thu, Apr 30
American Airlines Logo
5:24 am - 1:02 pm
STL
-
BZE
8h 38m
1 stop
American Airlines Logo
12:14 pm - 10:59 pm
BZE
-
STL
9h 45m
1 stop
$381American Airlines
Fri, May 8 - Sat, May 16

United Airlines flights from St. Louis to Belize

Our best United Airlines deals on St. Louis to Belize flight tickets
United Airlines
May 14
STL6:00 amLambert-St Louis
8h 33m
1 stop
BZE1:33 pmBelize City Philip S.W.Goldson
May 18
BZE12:20 pmBelize City Philip S.W.Goldson
9h 10m
1 stop
STL10:30 pmLambert-St Louis
$399
United Airlines
Apr 22
STL6:00 amLambert-St Louis
6h 15m
1 stop
BZE11:15 amBelize City Philip S.W.Goldson
Apr 29
BZE12:20 pmBelize City Philip S.W.Goldson
9h 08m
1 stop
STL10:28 pmLambert-St Louis
$453
United Airlines
Apr 22
STL6:00 amLambert-St Louis
6h 15m
1 stop
BZE11:15 amBelize City Philip S.W.Goldson
Apr 29
BZE12:20 pmBelize City Philip S.W.Goldson
19h 19m
2 stops
STL8:39 amLambert-St Louis
$471

American Airlines flights from St. Louis to Belize

Our best American Airlines deals on St. Louis to Belize flight tickets
American Airlines
Apr 22
STL5:20 amLambert-St Louis
10h 10m
1 stop
BZE2:30 pmBelize City Philip S.W.Goldson
Apr 29
BZE1:52 pmBelize City Philip S.W.Goldson
7h 32m
1 stop
STL10:24 pmLambert-St Louis
$338
American Airlines
Apr 22
STL5:20 amLambert-St Louis
10h 10m
1 stop
BZE2:30 pmBelize City Philip S.W.Goldson
Apr 29
BZE3:31 pmBelize City Philip S.W.Goldson
16h 55m
2 stops
STL9:26 amLambert-St Louis
$347
American Airlines
Apr 8
STL5:24 amLambert-St Louis
6h 41m
1 stop
BZE11:05 amBelize City Philip S.W.Goldson
Apr 15
BZE3:31 pmBelize City Philip S.W.Goldson
17h 45m
1 stop
STL10:16 amLambert-St Louis
$356

momondo 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, momondo users made 832,500 searches. Data last updated March 10, 2026.
Use the filters below to find and compare flights from St. Louis to Belize that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Wed 4/22

5:20 am-2:30 pm

1 stop10h 10m

Belize City Philip S.W.Goldson

Wed 4/29

1:52 pm-10:24 pm

1 stop7h 32m

$338

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Wed 4/22

5:20 am-2:30 pm

1 stop10h 10m

Belize City Philip S.W.Goldson

Wed 4/29

3:31 pm-9:26 am

2 stops16h 55m

$347
Quickest round-trip

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Tue 5/5

6:00 am-11:16 am

1 stop6h 16m

Belize City Philip S.W.Goldson

Fri 5/15

12:40 pm-9:29 pm

1 stop7h 49m

$351

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Wed 4/8

5:24 am-11:05 am

1 stop6h 41m

Belize City Philip S.W.Goldson

Wed 4/15

3:31 pm-10:16 am

1 stop17h 45m

$356

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Fri 5/8

6:54 pm-10:40 am

1 stop16h 46m

Belize City Philip S.W.Goldson

Wed 5/13

12:14 pm-10:59 pm

1 stop9h 45m

$361

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Fri 5/8

6:54 pm-11:05 am

2 stops17h 11m

Belize City Philip S.W.Goldson

Wed 5/13

1:52 pm-8:27 am

2 stops17h 35m

$366

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Sat 5/9

6:00 am-11:09 am

1 stop6h 09m

Belize City Philip S.W.Goldson

Wed 5/13

12:40 pm-11:59 pm

1 stop10h 19m

$371

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Thu 4/23

6:55 pm-11:05 am

2 stops17h 10m

Belize City Philip S.W.Goldson

Thu 4/30

1:52 pm-8:24 am

2 stops17h 32m

$375

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Thu 4/23

5:24 am-11:05 am

1 stop6h 41m

Belize City Philip S.W.Goldson

Thu 4/30

3:31 pm-10:16 am

1 stop17h 45m

$380

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Fri 5/8

5:24 am-1:02 pm

1 stop8h 38m

Belize City Philip S.W.Goldson

Sat 5/16

12:14 pm-10:59 pm

1 stop9h 45m

$381

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Belize from

How to get the cheapest flight ticket from St. Louis to Belize

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Belize?

The cheapest month to fly to Belize from St. Louis is in October. Flight prices, which tend to average around $310, are often lower during this time because this is during the off-season. If you aren’t able to travel to Belize during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $389.

What is the cheapest Lambert-St Louis to Belize flight route?

Fly from Lambert-St Louis to Belize City Philip S.W.Goldson for the best Lambert-St Louis - Belize flight prices

How far in advance should I book a flight to Belize?

You are more likely to see cheaper flights to Belize from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Belize for around $450 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belize from St. Louis for as low as $376 on momondo.

What cabin class options are available on Lambert-St Louis to Belize flights?

There is only 1 cabin class available to choose from on Lambert-St Louis to Belize flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Belize flights?

You could potentially save up to 17% on your flight if you consider stops on a St. Louis to Belize flight.

Cheap St. Louis to Belize flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Belize

Fastest flight time

5h 25m

Direct flights

None
The fastest flight from St. Louis to Belize takes 5h 25m
There are no direct flights from St. Louis to Belize. There are no popular flight routes from St. Louis to Belize.
Search flight deals

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Belize?

    Prices for flights from Lambert-St Louis Airport to Belize are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Belize?

  • How old do you have to be to fly from Lambert-St Louis Airport to Belize?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Belize.

  • What documentation or ID do you need to fly to Belize?

    The travel and health documents required for your trip to Belize can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Belize. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from St. Louis to Belize

Compare and see reviews for airlines that fly from St. Louis to Belize with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,409 reviews
Search United Airlines flights
DeltaPriceFrom $287Free CancellationRating
7.9
8,276 reviews
Search Delta flights
American AirlinesPriceFrom $343Free CancellationRating
7.1
11,414 reviews
Search American Airlines flights
SouthwestPriceFrom $401Free CancellationRating
8.0
4,317 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Belize?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Belize for you.

Can I find flights from St. Louis to Belize with flexible booking policies on momondo?

momondo does allow users to show only those flights to Belize from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Belize?

momondo provides multiple filters to help you find the best flight to Belize from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Belize right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Belize flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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