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Cheap flights from St. Louis to Belize from $154

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 5/18. 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.
Delta Logo
6:00 am - 11:42 am
STL
-
BZE
6h 42m
1 stop
Delta Logo
12:57 pm - 11:39 pm
BZE
-
STL
9h 42m
1 stop
$393Delta
Mon, Oct 19 - Thu, Oct 29
American Airlines Logo
5:58 pm - 12:26 pm
STL
-
BZE
19h 28m
2 stops
American Airlines Logo
1:32 pm - 12:06 pm
BZE
-
STL
21h 34m
2 stops
$398American Airlines
Tue, Aug 4 - Wed, Aug 12
Delta Logo
7:20 am - 11:42 am
STL
-
BZE
5h 22m
1 stop
Delta Logo
12:57 pm - 11:39 pm
BZE
-
STL
9h 42m
1 stop
$423Delta
Wed, Oct 21 - Wed, Oct 28
American Airlines Logo
6:13 pm - 10:38 am
STL
-
BZE
17h 25m
2 stops
American Airlines Logo
3:28 pm - 10:37 am
BZE
-
STL
18h 09m
2 stops
$428American Airlines
Fri, Jun 5 - Tue, Jun 9
American Airlines Logo
6:12 pm - 12:28 pm
STL
-
BZE
19h 16m
2 stops
American Airlines Logo
11:28 am - 8:32 am
BZE
-
STL
20h 04m
2 stops
$433American Airlines
Mon, Jun 1 - Sun, Jun 7
American Airlines Logo
5:11 pm - 2:26 pm
STL
-
BZE
22h 15m
1 stop
American Airlines Logo
3:33 pm - 12:54 pm
BZE
-
STL
20h 21m
2 stops
$436American Airlines
Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
8:14 pm - 1:17 pm
STL
-
BZE
18h 03m
2 stops
American Airlines Logo
3:28 pm - 10:35 am
BZE
-
STL
18h 07m
1 stop
$438American Airlines
Fri, Jun 5 - Tue, Jun 9
American Airlines Logo
6:08 pm - 10:15 am
STL
-
BZE
17h 07m
1 stop
American Airlines Logo
3:30 pm - 12:24 pm
BZE
-
STL
19h 54m
2 stops
$443American Airlines
Sun, Oct 18 - Sun, Oct 25
Delta Logo
6:00 am - 11:07 am
STL
-
BZE
6h 07m
1 stop
Delta Logo
12:15 pm - 11:53 pm
BZE
-
STL
10h 38m
1 stop
$453Delta
Sat, Jul 4 - Tue, Jul 7
American Airlines Logo
7:21 pm - 12:26 pm
STL
-
BZE
18h 05m
2 stops
American Airlines Logo
1:32 pm - 10:45 am
BZE
-
STL
20h 13m
2 stops
$457American Airlines
Sun, Aug 2 - Mon, Aug 10

American Airlines flights from St. Louis to Belize

Our best American Airlines deals on St. Louis to Belize flight tickets
American Airlines
Aug 4
STL5:58 pmLambert-St Louis
19h 28m
2 stops
BZE12:26 pmBelize City Philip S.W.Goldson
Aug 12
BZE1:32 pmBelize City Philip S.W.Goldson
21h 34m
2 stops
STL12:06 pmLambert-St Louis
$398
American Airlines
Jun 5
STL6:13 pmLambert-St Louis
17h 25m
2 stops
BZE10:38 amBelize City Philip S.W.Goldson
Jun 9
BZE3:28 pmBelize City Philip S.W.Goldson
18h 09m
2 stops
STL10:37 amLambert-St Louis
$428
American Airlines
Jun 1
STL6:12 pmLambert-St Louis
19h 16m
2 stops
BZE12:28 pmBelize City Philip S.W.Goldson
Jun 7
BZE11:28 amBelize City Philip S.W.Goldson
20h 04m
2 stops
STL8:32 amLambert-St Louis
$433

United Airlines flights from St. Louis to Belize

Our best United Airlines deals on St. Louis to Belize flight tickets
United Airlines
Jun 10
STL6:14 amLambert-St Louis
8h 19m
1 stop
BZE1:33 pmBelize City Philip S.W.Goldson
Jun 17
BZE2:35 pmBelize City Philip S.W.Goldson
17h 06m
2 stops
STL8:41 amLambert-St Louis
$459
United Airlines
Oct 18
STL8:35 amLambert-St Louis
5h 58m
1 stop
BZE1:33 pmBelize City Philip S.W.Goldson
Oct 27
BZE2:38 pmBelize City Philip S.W.Goldson
6h 28m
1 stop
STL10:06 pmLambert-St Louis
$513
United Airlines
Oct 21
STL9:23 amLambert-St Louis
29h 10m
2 stops
BZE1:33 pmBelize City Philip S.W.Goldson
Oct 27
BZE2:38 pmBelize City Philip S.W.Goldson
20h 42m
2 stops
STL12:20 pmLambert-St Louis
$518

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 May 1, 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

Mon 10/19

6:00 am-11:42 am

1 stop6h 42m

Belize City Philip S.W.Goldson

Thu 10/29

12:57 pm-11:39 pm

1 stop9h 42m

$393

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Tue 8/4

5:58 pm-12:26 pm

2 stops19h 28m

Belize City Philip S.W.Goldson

Wed 8/12

1:32 pm-12:06 pm

2 stops21h 34m

$398
Quickest round-trip

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Wed 10/21

7:20 am-11:42 am

1 stop5h 22m

Belize City Philip S.W.Goldson

Wed 10/28

12:57 pm-11:39 pm

1 stop9h 42m

$423

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Fri 6/5

6:13 pm-10:38 am

2 stops17h 25m

Belize City Philip S.W.Goldson

Tue 6/9

3:28 pm-10:37 am

2 stops18h 09m

$428

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Mon 6/1

6:12 pm-12:28 pm

2 stops19h 16m

Belize City Philip S.W.Goldson

Sun 6/7

11:28 am-8:32 am

2 stops20h 04m

$433

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Sat 8/15

5:11 pm-2:26 pm

1 stop22h 15m

Belize City Philip S.W.Goldson

Sat 8/22

3:33 pm-12:54 pm

2 stops20h 21m

$436

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Fri 6/5

8:14 pm-1:17 pm

2 stops18h 03m

Belize City Philip S.W.Goldson

Tue 6/9

3:28 pm-10:35 am

1 stop18h 07m

$438

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Sun 10/18

6:08 pm-10:15 am

1 stop17h 07m

Belize City Philip S.W.Goldson

Sun 10/25

3:30 pm-12:24 pm

2 stops19h 54m

$443

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Sat 7/4

6:00 am-11:07 am

1 stop6h 07m

Belize City Philip S.W.Goldson

Tue 7/7

12:15 pm-11:53 pm

1 stop10h 38m

$453

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Sun 8/2

7:21 pm-12:26 pm

2 stops18h 05m

Belize City Philip S.W.Goldson

Mon 8/10

1:32 pm-10:45 am

2 stops20h 13m

$457

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 March. Flight prices, which tend to average around $128, 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 March, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $253.

How far in advance should I book a flight from St. Louis 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 $454 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 $373 on momondo.

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

You could potentially save up to 27% 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 58m

Direct flights

None
The fastest flight from St. Louis to Belize takes 5h 58m
There are no direct flights from St. Louis to Belize. There are no popular flight routes from St. Louis to Belize.
Search flight deals

Frequently asked questions about flying from St. Louis to Belize

  • 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 $265Free CancellationRating
7.4
9,675 reviews
Search United Airlines flights
DeltaPriceFrom $287Free CancellationRating
7.9
8,464 reviews
Search Delta flights
American AirlinesPriceFrom $343Free CancellationRating
7.1
11,684 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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