Cheap flights from Chicago to Saint Lucia from $240
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 10/29. 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.
Find the cheapest flights from Chicago to Saint Lucia
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
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.Delta flights from Chicago to Saint Lucia
Our best Delta deals on Chicago to Saint Lucia flight tickets
American Airlines flights from Chicago to Saint Lucia
Our best American Airlines deals on Chicago to Saint Lucia flight tickets
momondo Fare Finder
Use the filters below to find and compare flights from Chicago to Saint Lucia that are best for you.
Fly from
Fly to
Route
Depart
Return
ChicagoCastries
ORD Chicago O'Hare Intl - UVF Castries Hewanorra
ORDUVF
Chicago O'Hare Intl
Sun 11/1
4:30 pm-4:40 pm
1 stop22h 10m
Castries Hewanorra
Mon 11/9
5:35 pm-5:43 pm
1 stop26h 08m
ChicagoCastries
ORD Chicago O'Hare Intl - UVF Castries Hewanorra
ORDUVF
Chicago O'Hare Intl
Sun 11/1
8:45 am-4:40 pm
1 stop29h 55m
Castries Hewanorra
Mon 11/9
5:35 pm-9:23 am
1 stop17h 48m
ChicagoCastries
ORD Chicago O'Hare Intl - UVF Castries Hewanorra
ORDUVF
Chicago O'Hare Intl
Sun 11/1
8:40 pm-4:40 pm
1 stop18h 00m
Castries Hewanorra
Mon 11/9
5:35 pm-9:23 am
1 stop17h 48m
ChicagoCastries
ORD Chicago O'Hare Intl - UVF Castries Hewanorra
ORDUVF
Chicago O'Hare Intl
Tue 11/17
6:05 pm-1:30 pm
1 stop17h 25m
Castries Hewanorra
Tue 11/24
4:28 pm-11:59 pm
1 stop9h 31m
ChicagoCastries
ORD Chicago O'Hare Intl - UVF Castries Hewanorra
ORDUVF
Chicago O'Hare Intl
Sat 11/14
5:54 pm-1:30 pm
1 stop17h 36m
Castries Hewanorra
Thu 11/19
2:38 pm-8:00 am
1 stop19h 22m
ChicagoCastries
ORD Chicago O'Hare Intl - UVF Castries Hewanorra
ORDUVF
Chicago O'Hare Intl
Sat 11/14
9:11 pm-1:30 pm
2 stops14h 19m
Castries Hewanorra
Thu 11/19
3:56 pm-11:59 pm
1 stop10h 03m
ChicagoCastries
ORD Chicago O'Hare Intl - UVF Castries Hewanorra
ORDUVF
Chicago O'Hare Intl
Fri 11/27
6:30 pm-1:07 pm
1 stop16h 37m
Castries Hewanorra
Sat 12/5
1:52 pm-6:15 pm
Nonstop6h 23m
ChicagoCastries
ORD Chicago O'Hare Intl - UVF Castries Hewanorra
ORDUVF
Chicago O'Hare Intl
Thu 1/28
7:00 pm-3:05 pm
1 stop18h 05m
Castries Hewanorra
Sat 2/6
4:25 pm-8:34 am
1 stop18h 09m
ChicagoCastries
ORD Chicago O'Hare Intl - UVF Castries Hewanorra
ORDUVF
Chicago O'Hare Intl
Thu 1/28
7:00 pm-3:05 pm
1 stop18h 05m
Castries Hewanorra
Thu 2/4
4:25 pm-11:50 pm
1 stop9h 25m
ChicagoCastries
ORD Chicago O'Hare Intl - UVF Castries Hewanorra
ORDUVF
Chicago O'Hare Intl
Sat 1/30
8:52 am-4:25 pm
Nonstop5h 33m
Castries Hewanorra
Sat 2/6
5:17 pm-7:52 am
1 stop16h 35m
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 month to fly to Saint Lucia?
The month of January is, on average, the cheapest month to fly to Saint Lucia from Chicago, with most prices found around $737. If you aren’t able to travel to Saint Lucia during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $742.
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 2 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.
Can stopping save me money on Chicago to Saint Lucia flights?
You could potentially save up to 9% on your flight if you consider stops on a Chicago to Saint Lucia flight.
What is the cheapest airline that flies from Chicago to Saint Lucia?
Air Canada, 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 56% 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
Frequently asked questions about flying 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 October 2026.
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 90.48% of the total bookings. Other popular models include Airbus A321-100/200 with 4.76% and Airbus A320-100/200 with 4.76%.
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 $552 | Free Cancellation | Rating 7.0 12,127 reviews | |||
| PriceFrom $565 | Free Cancellation | Rating 7.8 8,628 reviews | |||
| PriceFrom $621 | Free Cancellation | Rating 7.4 10,285 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.