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Cheap Flights from Chicago (ORD) to Castries (UVF)

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      Travellers and cabin class, 1 Adult, Economy
      United

      Compare Chicago O'Hare International to St Lucia Hewanorra flight deals

      Find the cheapest month or even day of the year to fly to St Lucia Hewanorra

      Book the best St Lucia Hewanorra fare with no extra fees

      Flight deals from Chicago O'Hare International to St Lucia Hewanorra

      Looking for a cheap last-minute deal or the best return flight from Chicago O'Hare International Airport to St Lucia Hewanorra Airport? If you want to travel next month, return fares start from $884. Find the lowest prices on one-way and return tickets right here.
      Castries.$884 per passenger.Departing Fri, 16 Oct, returning Tue, 20 Oct.Return flight with American Airlines.Outbound indirect flight with American Airlines, departs from Chicago O'Hare International on Fri, 16 Oct, arriving in St Lucia Hewanorra.Inbound indirect flight with American Airlines, departs from St Lucia Hewanorra on Tue, 20 Oct, arriving in Chicago O'Hare International.Price includes taxes and charges.From $884, select.
      Castries.$892 per passenger.Departing Wed, 2 Dec, returning Thu, 10 Dec.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Wed, 2 Dec, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Thu, 10 Dec, arriving in Chicago O'Hare International.Price includes taxes and charges.From $892, select.
      Castries.$893 per passenger.Departing Wed, 25 Nov, returning Wed, 2 Dec.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Wed, 25 Nov, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Wed, 2 Dec, arriving in Chicago O'Hare International.Price includes taxes and charges.From $893, select.
      Castries.$894 per passenger.Departing Thu, 26 Nov, returning Mon, 30 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Thu, 26 Nov, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Mon, 30 Nov, arriving in Chicago O'Hare International.Price includes taxes and charges.From $894, select.
      Castries.$914 per passenger.Departing Sat, 2 Jan, returning Sat, 9 Jan.Return flight with United.Outbound indirect flight with United, departs from Chicago O'Hare International on Sat, 2 Jan, arriving in St Lucia Hewanorra.Inbound indirect flight with United, departs from St Lucia Hewanorra on Sat, 9 Jan, arriving in Chicago O'Hare International.Price includes taxes and charges.From $914, select.
      Castries.$935 per passenger.Departing Sun, 4 Apr, returning Sun, 11 Apr.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Sun, 4 Apr, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Sun, 11 Apr, arriving in Chicago O'Hare International.Price includes taxes and charges.From $935, select.
      Castries.$956 per passenger.Departing Wed, 28 Oct, returning Wed, 4 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Chicago O'Hare International on Wed, 28 Oct, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Wed, 4 Nov, arriving in Chicago O'Hare International.Price includes taxes and charges.From $956, select.
      Castries.$956 per passenger.Departing Sat, 6 Feb, returning Sun, 14 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Chicago O'Hare International on Sat, 6 Feb, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Sun, 14 Feb, arriving in Chicago O'Hare International.Price includes taxes and charges.From $956, select.
      Castries.$961 per passenger.Departing Thu, 17 Jun, returning Mon, 21 Jun.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Thu, 17 Jun, arriving in St Lucia Hewanorra.Inbound indirect flight with Air Canada, departs from St Lucia Hewanorra on Mon, 21 Jun, arriving in Chicago O'Hare International.Price includes taxes and charges.From $961, select.
      Castries.$965 per passenger.Departing Thu, 11 Mar, returning Thu, 18 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Chicago O'Hare International on Thu, 11 Mar, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Thu, 18 Mar, arriving in Chicago O'Hare International.Price includes taxes and charges.From $965, select.
      Castries.$1,024 per passenger.Departing Wed, 12 May, returning Wed, 19 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Chicago O'Hare International on Wed, 12 May, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Wed, 19 May, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,024, select.
      Castries.$1,071 per passenger.Departing Sat, 30 Jan, returning Sat, 6 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Chicago O'Hare International on Sat, 30 Jan, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Sat, 6 Feb, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,071, select.
      Castries.$1,085 per passenger.Departing Sat, 28 Nov, returning Sat, 5 Dec.Return flight with United.Outbound direct flight with United departs from Chicago O'Hare International on Sat, 28 Nov, arriving in St Lucia Hewanorra.Inbound direct flight with United departs from St Lucia Hewanorra on Sat, 5 Dec, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,085, select.
      Castries.$1,097 per passenger.Departing Thu, 31 Dec, returning Thu, 7 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Chicago O'Hare International on Thu, 31 Dec, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Thu, 7 Jan, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,097, select.
      Castries.$1,211 per passenger.Departing Wed, 24 Mar, returning Thu, 1 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Chicago O'Hare International on Wed, 24 Mar, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Thu, 1 Apr, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,211, select.
      Castries.$1,351 per passenger.Departing Wed, 28 Apr, returning Sun, 2 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Chicago O'Hare International on Wed, 28 Apr, arriving in St Lucia Hewanorra.Inbound indirect flight with Delta, departs from St Lucia Hewanorra on Sun, 2 May, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,351, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Chicago O'Hare International to St Lucia Hewanorra found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Chicago O'Hare International to St Lucia Hewanorra

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago O'Hare International to St Lucia Hewanorra flights are currently cheapest in October.
      Sep
      from $1,471
      Oct
      from $884
      Nov
      from $894
      Dec
      from $892
      Jan
      from $914
      Feb
      from $956
      Mar
      from $965
      Apr
      from $935
      May
      from $1,024
      Jun
      from $961
      Jul
      from $1,566
      Aug
      Find prices

      Direct flights from Chicago O'Hare International to St Lucia Hewanorra

      United

      Chicago O'Hare International to St Lucia Hewanorra: Alternative routes

      Compare routes from Chicago O'Hare International to Castries below. You may find an airport to fly into that's cheaper, faster, or easier than St Lucia Hewanorra.

      St Lucia Vigie

      1km from central Castries
      Closest
      Search flights

      St Lucia Hewanorra

      30km from central Castries
      Cheapest
      from $884
      Search flights

      Chicago to Castries: Flight information

      The things to know before you go.
      Cheapest flight found$884
      Cheapest month to flyOctober
      Average flight time5 hrs, 37 mins
      Most popular airlineUnited
      Average flights per week1

      Finding cheap flights from Chicago O'Hare International to St Lucia Hewanorra: Frequently asked questions

      The best price we found for a return flight from Chicago O'Hare International to St Lucia Hewanorra is $884. 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 O'Hare International to St Lucia Hewanorra.
      United flies direct from Chicago O'Hare International to St Lucia Hewanorra.
      As of September 2026, there is one flight per week flying from Chicago O'Hare International to St Lucia Hewanorra.
      The cheapest month to fly from Chicago O'Hare International to St Lucia Hewanorra is usually October.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago O'Hare International Airport to St Lucia Hewanorra Airport on Friday, 16 October 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 St Lucia Hewanorra 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.

      Currently, American Airlines and United offer the cheapest flight tickets to St Lucia Hewanorra.

      Travelling from Chicago O'Hare International Airport (ORD) to St Lucia Hewanorra Airport (UVF): what you need to know

      • The average length of a direct flight from Chicago O'Hare International Airport to St Lucia Hewanorra Airport is 5 hours 40 minutes.

      • Castries's timezone is UTC-4, which makes Castries two hours ahead of Chicago.

      • Get to the airport on time so you don't miss your ORD to UVF flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

      • Travelling during a peak time such as July? School holidays and other popular seasons can mean longer queues at check-in and security. Play it safe and arrive up to four hours before international flights and two hours before domestic departures.

      • Travelling to Castries (and then discovering more of Saint Lucia!) is easy with United. This popular carrier has direct flights from Chicago O'Hare International Airport to St Lucia Hewanorra Airport.

      • The airline with the highest booking volume on this route is United.

      • The carrier with the best on-time arrival rate for ORD to UVF flights is United.

      • We make it easy to book a flight with a stopover. To see your options for tickets from Chicago O'Hare International Airport to St Lucia Hewanorra Airport, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to explore the city of your choice. Worthwhile stopovers between ORD and UVF include:

        • Atlanta Hartsfield-Jackson Airport

        • Charlotte Douglas Airport

        • Miami International Airport

      How to find the cheapest flights from Chicago O'Hare International Airport (ORD) to St Lucia Hewanorra Airport (UVF)

      • Currently, $375 is the cheapest price we've seen for a one-way Chicago O'Hare International Airport to St Lucia Hewanorra Airport flight. The best price for a return ticket is $884. Bear in mind that fares can change due to demand at the time of booking.

      • It's often best to book as early as possible if you want to get cheap tickets from ORD to UVF. That's because airlines adjust prices based on demand, which tends to increase closer to the date of departure.

      • The cheapest month for flights from Chicago O'Hare International Airport to St Lucia Hewanorra Airport is May. Use the 'Whole month' tool to find the lowest prices if you have flexible travel dates.

      • Save time searching for cheap flights from ORD to UVF by setting up a Price Alert. We'll send you an email or notification through the app when a special offer becomes available.

      • Find the ideal flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Chicago O'Hare International Airport to St Lucia Hewanorra Airport, use the 'Sort by' function. You can also filter by airline, arrival and departure times, and journey duration.

      Handy information about Chicago O'Hare International Airport (ORD)

      • You'll find ORD at 10000 West O'Hare.

      • 70% of flights that leave from Chicago O'Hare International Airport make it to their destination on schedule.

      • Central Chicago to Chicago O'Hare International Airport is approximately 27 kilometres. Depending on traffic, it'll take about 30 minutes to get there if you're driving, catching a taxi or ride-sharing.

      • Taking public transport? Expect a trip time of around 45 minutes.

      • Need a handy hotel close to ORD? If you've booked an early flight from Chicago O'Hare International Airport to St Lucia Hewanorra Airport, these stays will have you sleeping moments from check-in:

      Arriving at St Lucia Hewanorra Airport (UVF)

      • Consider staying in a hotel close to UVF if you're catching a late Chicago O'Hare International Airport to St Lucia Hewanorra Airport flight. Check in to one of these options and skip the long transfer:

      • Say yes to new adventures by picking up a St Lucia Hewanorra Airport rental car. Grab your wheels from Drive A Matic, Sixt or Final Homes to explore Castries and beyond.

      • Secure the lowest price by reserving your ride from St Lucia Hewanorra Airport about one week before your departure date.

      When to fly to St Lucia Hewanorra Airport (UVF)

      • The quietest month for a flight from Chicago O'Hare International Airport to St Lucia Hewanorra Airport is September, while December is the busiest. Choose the ideal time to visit Castries based on whether you prefer a more relaxed vibe or a faster pace.

      • Book your flight from Chicago O'Hare International Airport to St Lucia Hewanorra Airport for September if you'd like to visit Castries during its warmest month. Expect temperatures of between 26ºC (79ºF) and 30ºC (86ºF).

      • If you'd rather travel in cooler conditions, look for a cheap ticket from ORD to UVF in February. Average temperatures are between 24ºC (75ºF) and 28ºC (82ºF) then.

      Explore more of Saint Lucia

      • Vieux Fort is just one of the many cities in Saint Lucia waiting to be discovered once you've seen the sights of Castries. Around 32 kilometres away to the south, check out popular attractions including Anse Des Sables Beach, Sandy Beach and Maria Islands Nature Reserve.

      Plan smart, explore more

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      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.