ORD - SLU

$680 Find Cheap Flights from Chicago to Castries - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$811
Typical prices: $783-$1,701
Multiple Airlines
Tue 4/3Tue 4/10
ORD - SLU • 2 stops
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Useful Info
Flight Deals

Cheap Flights from Chicago to Castries (ORD-SLU)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Castries

Sat, Apr 3 - Sat, Apr 10
Multiple Airlines Logo
8:50 pm - 7:00 pmORD  Chicago O'Hare Intl-SLU Castries George F. L. Charle
21h 10m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
12:35 pm - 9:05 amSLU  Castries George F. L. Charle-ORD Chicago O'Hare Intl
21h 30m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl
$811Multiple Airlines
Sun, Apr 4 - Sat, Apr 10
Multiple Airlines Logo
8:50 pm - 7:00 pmORD  Chicago O'Hare Intl-SLU Castries George F. L. Charle
21h 10m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
12:35 pm - 9:05 amSLU  Castries George F. L. Charle-ORD Chicago O'Hare Intl
21h 30m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl
$814Multiple Airlines
Thu, Mar 18 - Thu, Mar 25
Multiple Airlines Logo
8:50 pm - 7:00 pmORD  Chicago O'Hare Intl-SLU Castries George F. L. Charle
21h 10m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
12:35 pm - 9:08 amSLU  Castries George F. L. Charle-ORD Chicago O'Hare Intl
21h 33m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl
$916Multiple Airlines
Thu, Mar 18 - Sun, Mar 21
Multiple Airlines Logo
10:05 am - 7:00 pmORD  Chicago O'Hare Intl-SLU Castries George F. L. Charle
31h 55m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
3:45 pm - 7:50 amSLU  Castries George F. L. Charle-ORD Chicago O'Hare Intl
41h 05m2 stops Bridgetown Grantley Adams Intl Montreal Pierre Elliott Trudeau Intl
$966Multiple Airlines
Wed, Mar 17 - Mon, Mar 22
Multiple Airlines Logo
8:50 pm - 7:00 pmORD  Chicago O'Hare Intl-SLU Castries George F. L. Charle
21h 10m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
12:35 pm - 7:50 amSLU  Castries George F. L. Charle-ORD Chicago O'Hare Intl
20h 15m2 stops Bridgetown Grantley Adams Intl Montreal Pierre Elliott Trudeau Intl
$1,001Multiple Airlines
Sat, Jan 30 - Sun, Feb 7
Multiple Airlines Logo
8:50 pm - 7:00 pmORD  Chicago O'Hare Intl-SLU Castries George F. L. Charle
20h 10m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
12:35 pm - 11:07 amSLU  Castries George F. L. Charle-ORD Chicago O'Hare Intl
24h 32m2 stops Bridgetown Grantley Adams Intl Montreal Pierre Elliott Trudeau Intl
$1,020Multiple Airlines
Fri, Jan 29 - Mon, Feb 1
Multiple Airlines Logo
3:45 pm - 7:00 pmORD  Chicago O'Hare Intl-SLU Castries George F. L. Charle
25h 15m2 stops Montreal Pierre Elliott Trudeau Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
12:35 pm - 8:07 amSLU  Castries George F. L. Charle-ORD Chicago O'Hare Intl
21h 32m2 stops Bridgetown Grantley Adams Intl Montreal Pierre Elliott Trudeau Intl
$1,042Multiple Airlines
Fri, Feb 26 - Sat, Mar 6
Multiple Airlines Logo
8:50 pm - 7:00 pmORD  Chicago O'Hare Intl-SLU Castries George F. L. Charle
20h 10m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
3:45 pm - 7:58 pmSLU  Castries George F. L. Charle-ORD Chicago O'Hare Intl
54h 13m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl
$1,050Multiple Airlines
Thu, Mar 18 - Thu, Mar 25
Multiple Airlines Logo
8:50 pm - 7:00 pmORD  Chicago O'Hare Intl-SLU Castries George F. L. Charle
21h 10m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
12:35 pm - 8:12 amSLU  Castries George F. L. Charle-ORD Chicago O'Hare Intl
20h 37m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl
$1,066Multiple Airlines
Sat, Jan 23 - Sat, Jan 30
Multiple Airlines Logo
8:50 pm - 7:00 pmORD  Chicago O'Hare Intl-SLU Castries George F. L. Charle
20h 10m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl
Multiple Airlines Logo
12:35 pm - 9:08 amSLU  Castries George F. L. Charle-ORD Chicago O'Hare Intl
22h 33m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl
$1,140Multiple Airlines
Useful Info

Key details for Chicago O'Hare Intl Airport to Castries flights

Cheapest flight

$385
One-way flight from Chicago O'Hare Intl Airport to Castries

When to book flights from Chicago to Castries

Are your dates flexible? Find out the best times to travel from Chicago to Castries based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Chicago O'Hare Intl Airport to Castries flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Chicago O'Hare Intl Airport to Castries?

    Only Economy Class is available on flights from Chicago O'Hare Intl Airport to Castries.

  • Do I need a passport to fly from Chicago O'Hare Intl Airport to Castries?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Chicago O'Hare Intl Airport to Castries changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $811 to $3,831. That means the highest observed fare was about 5x higher than the lowest one.

  • What car rental options are available at Castries George F. L. Charle Airport (SLU)?

    Castries George F. L. Charle Airport (SLU) hosts 5 major car rental companies, with daily rates averaging $58 for economy cars. Top options include:

    • Ace
    • Drive A Matic
    • Final Rentals
    • Sixt
    • FlexWays

  • Which airports can I use when flying from Chicago O'Hare Intl Airport to Castries?

    Flights from Chicago O'Hare Intl Airport to Castries usually depart from Chicago O'Hare Intl (ORD) and arrive at Castries George F. L. Charle (SLU).

  • Can I save money by using flexible dates for flights from Chicago O'Hare Intl Airport to Castries?

    Yes. Flexible dates can save you up to 54% on flights from Chicago O'Hare Intl Airport to Castries. Friday is the cheapest departure day at $783 round-trip on average, while Monday is the most expensive at $1,701, a difference of $918.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Chicago O'Hare Intl Airport and Castries?

    Castries is 2 hours ahead of Chicago O'Hare Intl Airport (Atlantic Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Chicago O'Hare Intl Airport to Castries flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Monday. On this route, Friday flights average $783, about $918 less than Monday fares (54% savings) based on the last 12 months.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Castries George F. L. Charle Airport.

    • Stolen Time St. Lucia
    • Sandals Regency La Toc

More options for your flight from Chicago to Castries

Complete your trip to Castries with a hotel stay or car rental