ORD - SLU

$784 Find Cheap Flights from Chicago to Castries

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Castries departing on 10/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Castries

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Castries, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Castries, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Chicago to Castries (ORD-SLU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Castries that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Castries

Sat, Oct 25 - Tue, Oct 28
Multiple Airlines Logo
9:27 am - 10:10 pmORD-SLU
11h 43m2 stops
Multiple Airlines Logo
7:30 am - 9:15 amSLU-ORD
26h 45m2 stops
$784Multiple Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
Multiple Airlines Logo
11:40 am - 3:15 pmORD-SLU
25h 35m2 stops
Multiple Airlines Logo
6:20 pm - 6:36 pmSLU-ORD
26h 16m2 stops
$792Multiple Airlines
Find Deal
Sat, Oct 25 - Tue, Oct 28
Multiple Airlines Logo
9:27 am - 10:10 pmORD-SLU
11h 43m2 stops
Multiple Airlines Logo
7:30 am - 9:15 amSLU-ORD
26h 45m2 stops
$803Multiple Airlines
Find Deal
Sun, Feb 1 - Sat, Feb 7
Multiple Airlines Logo
8:41 am - 3:35 pmORD-SLU
28h 54m2 stops
Multiple Airlines Logo
6:20 pm - 11:42 pmSLU-ORD
31h 22m2 stops
$824Multiple Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
Multiple Airlines Logo
8:20 am - 3:15 pmORD-SLU
28h 55m3 stops
Multiple Airlines Logo
6:20 pm - 6:36 pmSLU-ORD
26h 16m2 stops
$833Multiple Airlines
Find Deal
Tue, Oct 28 - Fri, Oct 31
Multiple Airlines Logo
8:00 am - 7:00 pmORD-SLU
34h 00m2 stops
Multiple Airlines Logo
9:10 am - 8:00 pmSLU-ORD
35h 50m3 stops
$839Multiple Airlines
Find Deal
Sun, Feb 1 - Sat, Feb 7
Multiple Airlines Logo
8:41 am - 3:35 pmORD-SLU
28h 54m2 stops
Multiple Airlines Logo
6:20 pm - 11:42 pmSLU-ORD
31h 22m2 stops
$844Multiple Airlines
Find Deal
Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
8:50 pm - 3:35 pmORD-SLU
40h 45m3 stops
Multiple Airlines Logo
6:20 pm - 11:42 pmSLU-ORD
31h 22m2 stops
$857Multiple Airlines
Find Deal
Tue, Oct 28 - Fri, Oct 31
Multiple Airlines Logo
8:00 am - 7:00 pmORD-SLU
34h 00m2 stops
Multiple Airlines Logo
6:40 pm - 1:01 pmSLU-ORD
19h 21m2 stops
$887Multiple Airlines
Find Deal
Thu, Feb 5 - Mon, Feb 9
Multiple Airlines Logo
10:05 pm - 1:10 pmORD-SLU
37h 05m3 stops
Multiple Airlines Logo
4:20 pm - 9:00 pmSLU-ORD
30h 40m3 stops
$903Multiple Airlines
Find Deal

Everything you should know

Cheapest round-trip
$784
Multiple Airlines
Sat 10/25Tue 10/28
ORD - SLU • 2 stops
Cheapest one-way
Multiple Airlines
Wed 10/15
ORD - SLU • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Castries!
Booking Insights

KAYAK's insights & trends for Chicago to Castries flights

Get data-powered insights and trends into flights from Chicago to Castries to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Chicago O'Hare Intl Airport and Castries?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Chicago O'Hare Intl Airport to Castries.

There is just one airline that flies from Chicago O'Hare Intl Airport to Castries direct and that is American Airlines. The best round-trip deal found from American Airlines for the route is $575.

Good to know

Cheapest flight$784
Flight from Chicago 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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to Castries flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Castries?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Castries was $784 for a round-trip ticket.

  • Do I need a passport to fly between Chicago and Castries?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Chicago and on arrival in Castries.

  • Which aircraft models fly most regularly from Chicago to Castries?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Chicago to Castries?

    oneworld is the only airline alliance operating flights between Chicago and Castries.

  • How does KAYAK find such low prices on flights from Chicago to Castries?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Castries.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Castries?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Castries from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Castries?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Castries with an airline and back to Chicago with another airline. Booking your flights between Chicago and SLU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Castries?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Castries from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Chicago to Castries

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Castries. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Castries? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 11045 reviews
6.4Food
8.0Crew
7.2Comfort
7.5Boarding
6.9Entertainment
Airline reviews

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

2.0 MediocreAnonymous, Oct 2025ORD - PDX
Read more American Airlines reviews

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

Everything you need to know for your flight from Chicago to Castries

Information on your arrival and departure airports

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