Cheap flights from Chicago to Saint Lucia from $195
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Saint Lucia departing on 8/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Chicago to Saint Lucia
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Air Canada flights from Chicago to Saint Lucia
Our best Air Canada deals on Chicago to Saint Lucia flight tickets
WestJet flights from Chicago to Saint Lucia
Our best WestJet deals on Chicago to Saint Lucia flight tickets
See travel insights to Saint Lucia from
How to get the cheapest flight ticket from Chicago to Saint Lucia
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 day to depart on your flight to Saint Lucia?
Our data shows that Tuesday is the least expensive day to fly to Saint Lucia. Tickets to fly out on this day can be as low as $628. On the other hand, Thursday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,262.
What is the cheapest time of day to depart on your flight to Saint Lucia?
Our data shows that the cheapest Chicago to Saint Lucia flights are usually those with departure times in the afternoon. Our users have found flights to Saint Lucia in the afternoon for as low as $613. Flights in the morning are often more expensive with an average ticket price of $862.
What is the cheapest Chicago to Saint Lucia flight route?
Fly from Chicago O'Hare Intl to Castries Hewanorra for the best Chicago - Saint Lucia flight prices
What cabin class options are available on Chicago to Saint Lucia flights?
There are 1 cabin classes available to choose from on Chicago to Saint Lucia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Chicago to Saint Lucia?
JetBlue, American Airlines, and Delta are the most popular carriers operating from Chicago to Saint Lucia
What airlines fly to Saint Lucia?
American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Saint Lucia from Chicago according to our data. American Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Saint Lucia. Keep in mind that there are 3 different airlines that fly to Saint Lucia on a routine basis, so you have a few additional options to choose from.
Cheap Chicago to Saint Lucia flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to Saint Lucia
When did momondo last update prices for flights from Chicago to Saint Lucia?
Prices for flights from Chicago to Saint Lucia refresh daily.
How many operators does momondo search for flights from Chicago to Saint Lucia?
The number of operators available for flights from Chicago to Saint Lucia is 3 as of June 2025.
How old do you have to be to fly from Chicago to Saint Lucia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Saint Lucia.
What documentation or ID do you need to fly to Saint Lucia?
The travel and health documents you'll need for your trip to Saint Lucia 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 Saint Lucia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Chicago to Saint Lucia?
Based on momondo bookings for flights between Chicago and Saint Lucia, the leading plane model is Boeing 737-700, making up 100.00% of the total bookings.
Best airlines flying from Chicago to Saint Lucia
Compare and see reviews for airlines that fly from Chicago to Saint Lucia with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $528 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $546 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $558 | Free Cancellation | Rating 7.4 8,790 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Saint Lucia?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Saint Lucia. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Chicago to Saint Lucia with flexible booking policies on momondo?
momondo does allow users to show only those flights to Saint Lucia from Chicago which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Chicago to Saint Lucia?
momondo provides multiple filters to help you find the best flight to Saint Lucia from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Chicago to Saint Lucia right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Chicago to Saint Lucia 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.