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Cheap flights from St. Louis to Simpson Bay from $180

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 Simpson Bay departing on 5/7. 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 Simpson Bay

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
2:20 pm - 2:00 pm
STL
-
SXM
22h 40m
1 stop
Air Canada Logo
3:05 pm - 12:06 pm
SXM
-
STL
22h 01m
1 stop
$411Air Canada
Wed, Jun 3 - Sat, Jun 13
Air Canada Logo
1:00 pm - 2:00 pm
STL
-
SXM
24h 00m
2 stops
Air Canada Logo
3:05 pm - 12:06 pm
SXM
-
STL
22h 01m
1 stop
$414Air Canada
Wed, Jun 3 - Sat, Jun 13
Air Canada Logo
7:30 am - 2:00 pm
STL
-
SXM
29h 30m
1 stop
Air Canada Logo
3:05 pm - 12:06 pm
SXM
-
STL
22h 01m
1 stop
$421Air Canada
Fri, Jun 5 - Sat, Jun 13
Air Canada Logo
1:00 pm - 2:00 pm
STL
-
SXM
24h 00m
2 stops
Air Canada Logo
3:05 pm - 12:06 pm
SXM
-
STL
22h 01m
1 stop
$424Air Canada
Wed, Jun 3 - Thu, Jun 11
Air Canada Logo
1:00 pm - 2:00 pm
STL
-
SXM
24h 00m
2 stops
Air Canada Logo
2:55 pm - 12:06 pm
SXM
-
STL
22h 11m
1 stop
$455Air Canada
Fri, May 1 - Thu, May 14
Air Canada Logo
1:00 pm - 2:00 pm
STL
-
SXM
24h 00m
2 stops
Air Canada Logo
2:55 pm - 8:25 pm
SXM
-
STL
30h 30m
2 stops
$459Air Canada
Fri, May 1 - Thu, May 14
Delta Logo
6:00 am - 2:05 pm
STL
-
SXM
7h 05m
1 stop
Delta Logo
3:20 pm - 11:59 pm
SXM
-
STL
9h 39m
1 stop
$473Delta
Sun, May 3 - Fri, May 15
Air Canada Logo
1:00 pm - 2:00 pm
STL
-
SXM
48h 00m
2 stops
Air Canada Logo
3:05 pm - 12:06 pm
SXM
-
STL
22h 01m
1 stop
$474Air Canada
Tue, Jun 2 - Thu, Jun 11
Delta Logo
6:00 am - 1:55 pm
STL
-
SXM
6h 55m
1 stop
Delta Logo
3:20 pm - 11:59 pm
SXM
-
STL
9h 39m
1 stop
$477Delta
Sun, May 17 - Thu, May 21
Delta Logo
1:02 pm - 12:10 pm
STL
-
SXM
22h 08m
2 stops
Delta Logo
3:20 pm - 11:59 pm
SXM
-
STL
9h 39m
1 stop
$478Delta
Sun, May 3 - Thu, May 14

Air Canada flights from St. Louis to Simpson Bay

Our best Air Canada deals on St. Louis to Simpson Bay flight tickets
Air Canada
Mar 2
STL4:05 pmLambert-St Louis
21h 55m
1 stop
SXM4:00 pmSimpson Bay Princess Juliana
Mar 10
SXM4:00 pmSimpson Bay Princess Juliana
24h 29m
1 stop
STL3:29 pmLambert-St Louis
$345
Air Canada
Jun 3
STL2:20 pmLambert-St Louis
22h 40m
1 stop
SXM2:00 pmSimpson Bay Princess Juliana
Jun 13
SXM3:05 pmSimpson Bay Princess Juliana
22h 01m
1 stop
STL12:06 pmLambert-St Louis
$411
Air Canada
Jun 3
STL1:00 pmLambert-St Louis
24h 00m
2 stops
SXM2:00 pmSimpson Bay Princess Juliana
Jun 13
SXM3:05 pmSimpson Bay Princess Juliana
22h 01m
1 stop
STL12:06 pmLambert-St Louis
$414

American Airlines flights from St. Louis to Simpson Bay

Our best American Airlines deals on St. Louis to Simpson Bay flight tickets
American Airlines
Mar 21
STL6:20 pmLambert-St Louis
16h 09m
1 stop
SXM11:29 amSimpson Bay Princess Juliana
Mar 25
SXM12:29 pmSimpson Bay Princess Juliana
12h 29m
1 stop
STL11:58 pmLambert-St Louis
$481
American Airlines
May 17
STL6:54 pmLambert-St Louis
19h 28m
2 stops
SXM3:22 pmSimpson Bay Princess Juliana
May 21
SXM2:26 pmSimpson Bay Princess Juliana
9h 32m
1 stop
STL10:58 pmLambert-St Louis
$482
American Airlines
Mar 21
STL6:57 pmLambert-St Louis
17h 24m
2 stops
SXM1:21 pmSimpson Bay Princess Juliana
Mar 25
SXM4:28 pmSimpson Bay Princess Juliana
17h 27m
2 stops
STL8:55 amLambert-St Louis
$486

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Simpson Bay 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 February 27, 2026.
Use the filters below to find and compare flights from St. Louis to Simpson Bay that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Wed 6/3

2:20 pm-2:00 pm

1 stop22h 40m

Simpson Bay Princess Juliana

Sat 6/13

3:05 pm-12:06 pm

1 stop22h 01m

$411

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Wed 6/3

1:00 pm-2:00 pm

2 stops24h 00m

Simpson Bay Princess Juliana

Sat 6/13

3:05 pm-12:06 pm

1 stop22h 01m

$414

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Fri 6/5

7:30 am-2:00 pm

1 stop29h 30m

Simpson Bay Princess Juliana

Sat 6/13

3:05 pm-12:06 pm

1 stop22h 01m

$421

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Wed 6/3

1:00 pm-2:00 pm

2 stops24h 00m

Simpson Bay Princess Juliana

Thu 6/11

3:05 pm-12:06 pm

1 stop22h 01m

$424

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Fri 5/1

1:00 pm-2:00 pm

2 stops24h 00m

Simpson Bay Princess Juliana

Thu 5/14

2:55 pm-12:06 pm

1 stop22h 11m

$455

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Fri 5/1

1:00 pm-2:00 pm

2 stops24h 00m

Simpson Bay Princess Juliana

Thu 5/14

2:55 pm-8:25 pm

2 stops30h 30m

$459

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Sun 5/3

6:00 am-2:05 pm

1 stop7h 05m

Simpson Bay Princess Juliana

Fri 5/15

3:20 pm-11:59 pm

1 stop9h 39m

$473

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Tue 6/2

1:00 pm-2:00 pm

2 stops48h 00m

Simpson Bay Princess Juliana

Thu 6/11

3:05 pm-12:06 pm

1 stop22h 01m

$474

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Sun 5/17

6:00 am-1:55 pm

1 stop6h 55m

Simpson Bay Princess Juliana

Thu 5/21

3:20 pm-11:59 pm

1 stop9h 39m

$477

St. LouisSimpson Bay

STL - SXM

STLSXM

Lambert-St Louis

Sun 5/3

1:02 pm-12:10 pm

2 stops22h 08m

Simpson Bay Princess Juliana

Thu 5/14

3:20 pm-11:59 pm

1 stop9h 39m

$478

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Simpson Bay from

How to get the cheapest flight ticket from St. Louis to Simpson Bay

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 Simpson Bay?

In general, September is the cheapest month to fly from St. Louis to Simpson Bay. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $517. If you aren’t able to travel to Simpson Bay during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $596.

How far in advance should I book a flight to Simpson Bay?

You are more likely to see cheaper flights to Simpson Bay from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Simpson Bay for around $679 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Simpson Bay from St. Louis for as low as $569 on momondo.

When to book flights from St. Louis to Simpson Bay

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Simpson Bay according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Simpson Bay (STL to SXM) flight deals and tips

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

Fastest flight time

6h 54m

Direct flights

None
The fastest flight from St. Louis to Simpson Bay takes 6h 54m
There are no direct flights from St. Louis to Simpson Bay. There are no popular flight routes from St. Louis to Simpson Bay.
Search flight deals

  • How far is Lambert-St Louis to Simpson Bay Princess Juliana by plane?

    The distance between Lambert-St Louis and Simpson Bay Princess Juliana is about 2159.4 mi. 6h 54m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Simpson Bay Princess Juliana Airport?

    Prices for flights from Lambert-St Louis Airport to Simpson Bay Princess Juliana Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Simpson Bay Princess Juliana Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Simpson Bay Princess Juliana Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Simpson Bay Princess Juliana Airport.

  • What documentation or ID do you need to fly to Simpson Bay Princess Juliana Airport?

    The travel and health documents you'll need for your trip to Simpson Bay Princess Juliana Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Simpson Bay Princess Juliana Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Simpson Bay?

Best airlines flying from St. Louis to Simpson Bay

Compare and see reviews for airlines that fly from St. Louis to Simpson Bay with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $497Free CancellationRating
7.9
8,245 reviews
Search Delta flights
American AirlinesPriceFrom $554Free CancellationRating
7.1
11,367 reviews
Search American Airlines flights

Traveling to a place near Simpson Bay?

Book flights to Simpson Bay if you plan to visit one of these locations
Philipsburg

Why use momondo?

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

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 Simpson Bay for you.

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

Flights from St. Louis to Simpson Bay with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Simpson Bay 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 Simpson Bay right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Simpson Bay flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Fly your favorite airline to Simpson Bay

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
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Delta