What is the cheapest airline that flies from Lambert-St Louis to Simpson Bay Princess Juliana?

Air Canada and American Airlines are the most popular carriers operating from Lambert-St Louis to Simpson Bay Princess Juliana

What airlines fly to Simpson Bay?

American Airlines, Delta and Southwest are the top three most popular airlines that fly to Simpson Bay from St. Louis according to our data. American Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Simpson Bay. Keep in mind that there are 3 different airlines that fly to Simpson Bay on a routine basis, so you have a few additional options to choose from.

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?

The number of operators available for flights from Lambert-St Louis Airport to Simpson Bay Princess Juliana Airport is 3 as of November 2026.

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.

$237 Cheap Flights from St. Louis to Simpson Bay in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Simpson Bay

Round-trip

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Cheap round-trip flights

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4:05 pm - 2:45 pmSTL Lambert-St Louis-SXM Simpson Bay Princess Juliana

20h 40m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

4:50 pm - 3:26 pmSXM Simpson Bay Princess Juliana-STL Lambert-St Louis

24h 36m1 stop Toronto Pearson Intl

$482Air Canada

Fri, Nov 27 - Tue, Dec 1

4:05 pm - 2:45 pmSTL Lambert-St Louis-SXM Simpson Bay Princess Juliana

20h 40m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

3:45 pm - 3:26 pmSXM Simpson Bay Princess Juliana-STL Lambert-St Louis

25h 41m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$486Air Canada

Fri, Nov 27 - Tue, Dec 1

4:05 pm - 2:45 pmSTL Lambert-St Louis-SXM Simpson Bay Princess Juliana

20h 40m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

4:50 pm - 3:26 pmSXM Simpson Bay Princess Juliana-STL Lambert-St Louis

24h 36m1 stop Toronto Pearson Intl

$500Air Canada

Fri, Nov 27 - Tue, Dec 1

8:07 pm - 2:23 pmSTL Lambert-St Louis-SXM Simpson Bay Princess Juliana

16h 16m2 stops Chicago O'Hare Intl Miami

1:34 pm - 10:42 pmSXM Simpson Bay Princess Juliana-STL Lambert-St Louis

11h 08m1 stop Miami

$629American Airlines

Sat, Jan 2 - Fri, Jan 8

8:07 pm - 4:30 pmSTL Lambert-St Louis-SXM Simpson Bay Princess Juliana

18h 23m2 stops Chicago O'Hare Intl Miami

5:29 pm - 1:30 pmSXM Simpson Bay Princess Juliana-STL Lambert-St Louis

22h 01m2 stops Miami Charlotte Douglas

$629American Airlines

Sat, Jan 2 - Fri, Jan 8

8:07 pm - 4:30 pmSTL Lambert-St Louis-SXM Simpson Bay Princess Juliana

18h 23m2 stops Chicago O'Hare Intl Miami

4:19 pm - 11:05 amSXM Simpson Bay Princess Juliana-STL Lambert-St Louis

20h 46m2 stops Charlotte Douglas Chicago O'Hare Intl

$639American Airlines

Sat, Jan 2 - Fri, Jan 8

5:10 am - 3:40 pmSTL Lambert-St Louis-SXM Simpson Bay Princess Juliana

8h 30m1 stop Orlando

3:15 pm - 10:30 pmSXM Simpson Bay Princess Juliana-STL Lambert-St Louis

9h 15m1 stop Orlando

$657Southwest

Fri, Nov 27 - Wed, Dec 2

5:10 am - 3:40 pmSTL Lambert-St Louis-SXM Simpson Bay Princess Juliana

8h 30m1 stop Orlando

3:15 pm - 7:40 amSXM Simpson Bay Princess Juliana-STL Lambert-St Louis

18h 25m2 stops Orlando Baltimore/Washington

$662Southwest

Fri, Nov 27 - Wed, Dec 2

6:00 am - 1:55 pmSTL Lambert-St Louis-SXM Simpson Bay Princess Juliana

6h 55m1 stop Atlanta Hartsfield-Jackson

4:20 pm - 8:12 amSXM Simpson Bay Princess Juliana-STL Lambert-St Louis

16h 52m1 stop Atlanta Hartsfield-Jackson

$708Delta

Sun, Mar 28 - Sat, Apr 3

5:30 pm - 11:30 amSTL Lambert-St Louis-SXM Simpson Bay Princess Juliana

17h 00m2 stops Minneapolis St Paul New York John F Kennedy Intl

4:20 pm - 8:12 amSXM Simpson Bay Princess Juliana-STL Lambert-St Louis

16h 52m1 stop Atlanta Hartsfield-Jackson

$747Delta

Sat, Mar 27 - Sat, Apr 3

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Air Canada flights from St. Louis to Simpson Bay

Our best Air Canada deals on St. Louis to Simpson Bay flight tickets

Air Canada

Nov 27

STL4:05 pmLambert-St Louis

20h 40m

2 stops

SXM2:45 pmSimpson Bay Princess Juliana

Dec 1

SXM4:50 pmSimpson Bay Princess Juliana

24h 36m

1 stop

STL3:26 pmLambert-St Louis

$482

Air Canada

Nov 27

STL4:05 pmLambert-St Louis

20h 40m

2 stops

SXM2:45 pmSimpson Bay Princess Juliana

Dec 1

SXM3:45 pmSimpson Bay Princess Juliana

25h 41m

2 stops

STL3:26 pmLambert-St Louis

$486

Air Canada

Nov 27

STL4:05 pmLambert-St Louis

20h 40m

2 stops

SXM2:45 pmSimpson Bay Princess Juliana

Dec 1

SXM4:50 pmSimpson Bay Princess Juliana

24h 36m

1 stop

STL3:26 pmLambert-St Louis

$500

American Airlines flights from St. Louis to Simpson Bay

Our best American Airlines deals on St. Louis to Simpson Bay flight tickets

American Airlines

Jan 2

STL8:07 pmLambert-St Louis

16h 16m

2 stops

SXM2:23 pmSimpson Bay Princess Juliana

Jan 8

SXM1:34 pmSimpson Bay Princess Juliana

11h 08m

1 stop

STL10:42 pmLambert-St Louis

$629

American Airlines

Jan 2

STL8:07 pmLambert-St Louis

18h 23m

2 stops

SXM4:30 pmSimpson Bay Princess Juliana

Jan 8

SXM5:29 pmSimpson Bay Princess Juliana

22h 01m

2 stops

STL1:30 pmLambert-St Louis

$649

American Airlines

Dec 4

STL5:00 amLambert-St Louis

9h 26m

1 stop

SXM4:26 pmSimpson Bay Princess Juliana

Dec 9

SXM3:27 pmSimpson Bay Princess Juliana

8h 23m

1 stop

STL9:50 pmLambert-St Louis

$652

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisSimpson Bay

STL Lambert-St Louis - SXM Simpson Bay Princess Juliana

STLSXM

Lambert-St Louis

Fri 11/27

4:05 pm-2:45 pm

2 stops20h 40m

Simpson Bay Princess Juliana

Tue 12/1

4:50 pm-3:26 pm

1 stop24h 36m

$482

St. LouisSimpson Bay

STL Lambert-St Louis - SXM Simpson Bay Princess Juliana

STLSXM

Lambert-St Louis

Fri 11/27

4:05 pm-2:45 pm

2 stops20h 40m

Simpson Bay Princess Juliana

Tue 12/1

3:45 pm-3:26 pm

2 stops25h 41m

$486

St. LouisSimpson Bay

STL Lambert-St Louis - SXM Simpson Bay Princess Juliana

STLSXM

Lambert-St Louis

Fri 11/27

4:05 pm-2:45 pm

2 stops20h 40m

Simpson Bay Princess Juliana

Tue 12/1

4:50 pm-3:26 pm

1 stop24h 36m

$500

St. LouisSimpson Bay

STL Lambert-St Louis - SXM Simpson Bay Princess Juliana

STLSXM

Lambert-St Louis

Sat 1/2

8:07 pm-2:23 pm

2 stops16h 16m

Simpson Bay Princess Juliana

Fri 1/8

1:34 pm-10:42 pm

1 stop11h 08m

$629

St. LouisSimpson Bay

STL Lambert-St Louis - SXM Simpson Bay Princess Juliana

STLSXM

Lambert-St Louis

Sat 1/2

8:07 pm-4:30 pm

2 stops18h 23m

Simpson Bay Princess Juliana

Fri 1/8

5:29 pm-1:30 pm

2 stops22h 01m

$629

St. LouisSimpson Bay

STL Lambert-St Louis - SXM Simpson Bay Princess Juliana

STLSXM

Lambert-St Louis

Sat 1/2

8:07 pm-4:30 pm

2 stops18h 23m

Simpson Bay Princess Juliana

Fri 1/8

4:19 pm-11:05 am

2 stops20h 46m

$639

Quickest round-trip

St. LouisSimpson Bay

STL Lambert-St Louis - SXM Simpson Bay Princess Juliana

STLSXM

Lambert-St Louis

Fri 11/27

5:10 am-3:40 pm

1 stop8h 30m

Simpson Bay Princess Juliana

Wed 12/2

3:15 pm-10:30 pm

1 stop9h 15m

$657

St. LouisSimpson Bay

STL Lambert-St Louis - SXM Simpson Bay Princess Juliana

STLSXM

Lambert-St Louis

Fri 11/27

5:10 am-3:40 pm

1 stop8h 30m

Simpson Bay Princess Juliana

Wed 12/2

3:15 pm-7:40 am

2 stops18h 25m

$662

St. LouisSimpson Bay

STL Lambert-St Louis - SXM Simpson Bay Princess Juliana

STLSXM

Lambert-St Louis

Sun 3/28

6:00 am-1:55 pm

1 stop6h 55m

Simpson Bay Princess Juliana

Sat 4/3

4:20 pm-8:12 am

1 stop16h 52m

$708

St. LouisSimpson Bay

STL Lambert-St Louis - SXM Simpson Bay Princess Juliana

STLSXM

Lambert-St Louis

Sat 3/27

5:30 pm-11:30 am

2 stops17h 00m

Simpson Bay Princess Juliana

Sat 4/3

4:20 pm-8:12 am

1 stop16h 52m

$747

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

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

Prices

Airlines

What is the typical price of a round-trip flight between St. Louis and Simpson Bay?

Prices are currently low for flights on this route.

Typical prices usually range from $773 to $955.
The lowest price recently found on this route was $479.

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 $0. If you aren’t able to travel to Simpson Bay during the month of September, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $585.

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

Best Price Found	$237
Fastest flight time	6h 57m
Direct flights	None

The best one-way flight to Simpson Bay from St. Louis in the past 72 hours is $237. The best round-trip flight deal from St. Louis to Simpson Bay found on momondo in the last 72 hours is $482.

The fastest flight from St. Louis to Simpson Bay takes 6h 57m

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

Frequently asked questions about flying from St. Louis to Simpson Bay

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 57m 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?
The number of operators available for flights from Lambert-St Louis Airport to Simpson Bay Princess Juliana Airport is 3 as of November 2026.
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?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Simpson Bay is American Airlines, representing 59% of all bookings. The subsequent popular airlines are Delta at 31% and Southwest at 10%.

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
Southwest	PriceFrom $441	Free Cancellation	Rating 8.0 4,215 reviews	Search Southwest flights
Delta	PriceFrom $473	Free Cancellation	Rating 7.8 8,698 reviews	Search Delta flights
American Airlines	PriceFrom $544	Free Cancellation	Rating 7.0 12,232 reviews	Search American Airlines flights

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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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Cheap flights from St. Louis to Simpson Bay from $237

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 1/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from St. Louis to Simpson Bay

Our best Air Canada deals on St. Louis to Simpson Bay flight tickets

American Airlines flights from St. Louis to Simpson Bay

Our best American Airlines deals on St. Louis to Simpson Bay flight tickets

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

What is the typical price of a round-trip flight between St. Louis and Simpson Bay?

What is the cheapest month to fly to Simpson Bay?

What is the cheapest airline that flies from Lambert-St Louis to Simpson Bay Princess Juliana?

What airlines fly to Simpson Bay?

When to book flights from St. Louis to Simpson Bay

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Traveling to a place near Simpson Bay?

Why use momondo?

An easier way to manage your Simpson Bay trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

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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

Cabin classes currently available on flights to Simpson Bay

List of cabin classes available on flights landing in Simpson Bay. Availability may vary depending on flight origin and airline.

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