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C$296 Cheap Flights from Chicago (CHIA) to Castries (SLUA)

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Flight deals from Chicago to Castries

Looking for a cheap flight from Chicago to Castries? These deals are the lowest price flight tickets from Chicago to Castries found in the last 4 days.
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Find the cheapest month to fly from Chicago to Castries

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Castries flights are currently cheapest in October.
Jun.
from C$347
Jul.
from C$362
Aug.
from C$400
Sep.
from C$326
Oct.
from C$296
Nov.
from C$324
Dec.
from C$645
Jan.
from C$325
Feb.
from C$493
Mar.
Find prices
Apr.
from C$328
May
from C$3,808

Which airlines fly from Chicago to Castries?

Alternative Chicago to Castries routes

Looking for the cheapest, fastest or easiest route from Chicago to Castries? You could fly into the following airports instead.

St Lucia Vigie

1km from central Castries
Closest
from C$524
Search flights

St Lucia Hewanorra

31km from central Castries
Cheapest
from C$296
Search flights

Chicago to Castries: Flight information

The things to know before you go.
Cheapest flight foundC$296
Cheapest month to flyOctober
Average flight time5 hrs, 37 mins
Most popular airlineUnited
Average flights per week4

Finding cheap flights from Chicago to Castries: Frequently asked questions

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.
The best price we found for a return flight from Chicago to Castries is C$762. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 37 minutes is the average flight time from Chicago to Castries.
United flies direct from Chicago to Castries.
As of June 2026, there is one flight per week flying from Chicago to Castries.
The cheapest month to fly from Chicago to Castries is usually July.
If you're flying from Chicago, the cheapest airport near Castries is St Lucia Hewanorra – which is 30.5 km away from the centre of Castries. We've found flights into this airport from C$762.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Castries on Monday, July 6, 2026.
Yes – the average flight time is 5 hours and 37 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Castries but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Castries is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 28°C. September is typically the warmest month in Castries, when it usually averages around 28°C. You can expect the least rain in February. The coldest month is February, with temperatures averaging 25°C. The rainiest month is October.
The cheapest airline that flies to Castries is Air Canada. And the cheapest airline that flies to St Lucia Hewanorra Airport is United.

Flying from Chicago to Castries: what you need to know

  • Start your travel planning by considering where you'll catch your flight from Chicago to Castries. O'Hare International Airport (ORD) and Chicago Midway International Airport (MDW) are Chicago's main airports.

  • Hop off your plane in Castries at Hewanorra Airport (UVF) or George F. L. Charles Airport (SLU).

  • The average length of a direct flight from Chicago to Castries is 5 hours 32 minutes. Castries's timezone is UTC-4, which makes Castries 1 hour ahead of Chicago.

  • To ensure you catch your flight from Chicago to Castries, leave plenty of time for things like check-in and baggage drop. Arriving two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • Be prepared for longer queues in popular months such as August and other peak seasons. Arriving up to four hours in advance for an international flight and two hours for a domestic departure is a wise move.

  • If you hold a passport from United States and plan to travel to Saint Lucia for tourism purposes, you won't need a visa. However, visa and entry requirements may vary based on your reason for visiting and can be subject to change. For the most up-to-date information, check with your destination's nearest embassy or consulate before booking a cheap flight from Chicago to Castries.

Flying from Chicago

O'Hare International Airport (ORD)

  • You can get a direct flight from Chicago to Castries taking off from O'Hare International Airport (ORD). Start your journey at ORD and arrive at Hewanorra Airport (UVF).

  • You can lock in a direct flight from Chicago to Castries with United Airlines. This top airline offers services from ORD.

  • We make it easy to find a flight from Chicago to Castries that includes a stopover. To see the options departing from O'Hare International Airport, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to see the sights of your chosen city. Top stopovers include:

    • Miami International Airport (MIA)

    • Charlotte Douglas International Airport (CLT)

    • Hartsfield-Jackson Atlanta International Airport (ATL)

  • Located around 40 kilometres from the centre of Chicago, ORD can be reached in approximately 35 minutes by car, depending on traffic. The journey by public transport takes roughly 54 minutes.

  • Need a convenient hotel close to O'Hare International Airport? If you've booked an early flight from Chicago to Castries, these stays will put you moments from your departure gate:

Chicago Midway International Airport (MDW)

  • Visit friends or family or just take a moment to refresh yourself with a stopover. If you'd like to break up your flight from Chicago to Castries, here's where you can stop when leaving from O'Hare International Airport:

    • Miami International Airport (MIA)

    • Charlotte Douglas International Airport (CLT)

    • Hartsfield-Jackson Atlanta International Airport (ATL)

  • You can arrive at MDW from central Chicago in about 21 minutes by car (depending on traffic). The ride by public transport will take roughly 46 minutes to cover the 19 kilometres or so.

  • Kick off your vacation early with an extra night away from home. Before your flight from Chicago to Castries, take things easy in one of these hotels near Chicago Midway International Airport:

Arriving in Castries

Hewanorra Airport (UVF)

George F. L. Charles Airport (SLU)

  • The centre of Castries is approximately 3 kilometres from George F. L. Charles Airport (SLU). Once your flight from Chicago to Castries has hit the runway and you've navigated your way to arrivals, the drive should be around 6 minutes.

  • The journey will take about 40 minutes on public transport.

  • After your flight from Chicago to Castries, tuck yourself in at a hotel near SLU. These are some comfortable accommodation options that'll help you switch to relaxation mode:

How to find the cheapest flights from Chicago to Castries

  • The cheapest price we've found for a one-way ticket from Chicago to Castries is C$296. For a return flight on this route, the best price is C$762. Depending on when and how early you book, these fares could change.

  • Lock in cheap flights from Chicago to Castries by booking at least 9 months ahead. According to our research, that's the sweet spot for bagging a bargain.

  • Schedule your trip for May. That's the cheapest month for tickets from Chicago to Castries. If your travel dates are flexible, use the 'Whole month' tool to see the lowest price across each month.

  • Sign into your online account or use the app to set up a Price Alert. We'll get in touch straight away if there's a cheaper deal on this route. It doesn't take long, and it'll save you the hassle of looking for cheap flights from Chicago to Castries every day.

  • Use filters to find your ideal trip. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Chicago to Castries, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and journey duration.

Best time to go to Castries

  • May is the quietest month for flights from Chicago to Castries, while July is the most popular. Pick the best time to visit Castries based on whether you want a lively atmosphere or a more laid-back vibe.

  • The warmest month in Castries is September, with the temperature ranging between 26ºC and 30ºC. Book your flights from Chicago to Castries in this month if this is the type of weather you like.

  • If you like cooler conditions, lock in a cheap ticket from Chicago to Castries in February when temperatures average between 24ºC and 28ºC.

More about Castries

  • When it comes to looking for somewhere to lay your head, you'll find the top stays in Castries right here. Explore these options after locking in your flight from Chicago to Castries:

  • Derek Walcott Square and Morne Fortune are a couple of popular attractions to add to your Castries travel itinerary. Continue your sightseeing adventures at Immaculate Conception Church.

Complete your Castries trip with a car rental

  • We use the same magic that helped you find your cheap flight from Chicago to Castries to track down amazing deals on car rentals. Search for your ride in seconds and compare your options in one place. Plus you'll find all the info you need to drive in Castries, from the most popular car rental to the best time to book.

Plan the rest of your trip from Chicago to Castries

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.