BWI - SLU

$448 Find Cheap Flights from Baltimore to Castries

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baltimore to Castries departing on 4/4. 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, 0 bags

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 Baltimore 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 Baltimore to Castries, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$996
Multiple Airlines
Thu 3/12Thu 3/19
BWI - SLU • 3 stops
Cheapest one-way
$448
Multiple Airlines
Sat 4/4
BWI - SLU • 2 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Castries!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Baltimore to Castries (BWI-SLU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baltimore 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 Baltimore to Castries

Thu, Mar 12 - Thu, Mar 19
Multiple Airlines Logo
6:20 am - 7:00 pm
BWI
-
SLU
12h 40m
3 stops
Multiple Airlines Logo
5:50 pm - 11:59 pm
SLU
-
BWI
30h 09m
2 stops
$996Multiple Airlines
Thu, Mar 12 - Thu, Mar 19
Multiple Airlines Logo
6:20 am - 7:00 pm
BWI
-
SLU
12h 40m
3 stops
Multiple Airlines Logo
5:50 pm - 11:59 pm
SLU
-
BWI
30h 09m
3 stops
$1,059Multiple Airlines
Wed, Jul 15 - Wed, Jul 22
Multiple Airlines Logo
11:27 am - 1:10 pm
BWI
-
SLU
25h 43m
2 stops
Multiple Airlines Logo
9:10 am - 11:59 pm
SLU
-
BWI
14h 49m
3 stops
$1,208Multiple Airlines
Booking Insights

Good to know

Cheapest flight$448
Flight from Baltimore to Castries

When to book flights from Baltimore to Castries

Are your dates flexible? Find out the best times to travel from Baltimore 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 flights from Baltimore to Castries

  • What is the cheapest flight from Baltimore to Castries?

    In the last 3 days, the lowest price for a flight from Baltimore to Castries was $448 for a one-way ticket and $996 for a round-trip.

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

    A passport is required to fly from Baltimore to Castries.

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

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

  • Which airline alliances offer flights from Baltimore to Castries?

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

  • How does KAYAK find such low prices on flights from Baltimore 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 Baltimore to Castries.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Castries from Baltimore 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 Baltimore 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 Baltimore with another airline. Booking your flights between Baltimore 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 Baltimore 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 Baltimore 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 Baltimore to Castries

 
See real verified KAYAK customer reviews for airlines flying from Baltimore 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 Baltimore 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 11201 reviews
6.4Food
7.5Boarding
6.9Entertainment
8.0Crew
7.2Comfort
Airline reviews

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

10.0 ExcellentCindy, Jan 2026
MIA - BHM
Read more American Airlines reviews

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

My flight to London from Philadelphia was cancelled due to weather.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

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

Information on your arrival and departure airports

Baltimore (BWI)
Castries (SLU)