$525 Cheap Flights from St. Louis (STL) to Cap-Haitien (CAP)

View $525 flight on Mon, Feb 2, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Cap-Haitien (CAP-Cap-Haitien Intl.)

Cheap Flights from St. Louis to Cap-Haitien (STL-CAP)

Prices were available within the past 7 days and start at $525 for one-way flights and $1,188 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Nov 7 - Tue, Nov 11
STL
St. Louis
CAP
Cap-Haitien
$1,188 Roundtrip, found 23 hours ago
$1,188
Roundtrip
found 23 hours ago
Select United flight, departing Fri, Nov 7 from St. Louis to Cap-Haitien, returning Tue, Nov 11, priced at $1,188 found 23 hours ago
United
Mon, Nov 10 - Sat, Nov 15
STL
St. Louis
CAP
Cap-Haitien
$1,307 Roundtrip, found 23 hours ago
$1,307
Roundtrip
found 23 hours ago
Select United flight, departing Mon, Nov 10 from St. Louis to Cap-Haitien, returning Sat, Nov 15, priced at $1,307 found 23 hours ago
United
Fri, Nov 7 - Sat, Nov 15
STL
St. Louis
CAP
Cap-Haitien
$1,319 Roundtrip, found 23 hours ago
$1,319
Roundtrip
found 23 hours ago
Select United flight, departing Fri, Nov 7 from St. Louis to Cap-Haitien, returning Sat, Nov 15, priced at $1,319 found 23 hours ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Cap-Haitien (CAP-Cap-Haitien Intl.) cost?
Get a cheap one-way flight from $525 or cheap return flight from $1,188 from Lambert-St. Louis Intl. Airport (STL) to Cap-Haitien (CAP-Cap-Haitien Intl.) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Cap-Haitien (CAP-Cap-Haitien Intl.)?
The cheapest month to fly from STL to CAP is November, when demand is low. Off-peak season is generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Cap-Haitien (CAP-Cap-Haitien Intl.)?
To find the cheapest airline that'll fly you from STL to CAP, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Cap-Haitien (CAP-Cap-Haitien Intl.)?
There are no daily nonstop flights available from Lambert-St. Louis Intl. Airport (STL) to Cap-Haitien (CAP-Cap-Haitien Intl.). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from STL to CAP?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Cap-Haitien (CAP-Cap-Haitien Intl.)?
To avoid potential delays on the Lambert-St. Louis Intl. Airport (STL) to Cap-Haitien (CAP-Cap-Haitien Intl.) route, travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Cap-Haitien (CAP-Cap-Haitien Intl.) last-minute?
Last-minute fares from STL to CAP are typically more expensive. To secure the cheapest rates, start searching for flights early. That being said, if you're flexible with your travel plans, you may land a cheap ticket right before your trip.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Cap-Haitien (CAP-Cap-Haitien Intl.)?
It's generally possible to reschedule or cancel your STL to CAP flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Cap-Haitien Intl.
Roundtrip price
$1,187
Distance
1703 mi

Book with confidence

St. Louis to Cap-Haitien Flights

The cheapest times to fly from St. Louis to Cap-Haitien

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Cap-Haitien are during the month of November. You can find some of the cheapest flights from St. Louis to Cap-Haitien with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Cap-Haitien

Sunday is one of the best days to book for cheap flights from St. Louis to Cap-Haitien: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Cap-Haitien

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Cap-Haitien in 2025. You can also book with separate airlines for your outbound and return journeys, from $525 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Cap-Haitien flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Cap-Haitien airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Cap-Haitien Flights

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*Available to One Key members.