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Castries

$921+ Cheap flights from Baltimore (BWI) to Castries (SLU)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SLU
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Baltimore to Castries

Cheapest flights from Baltimore to Castries
Explore the most affordable flight options available from Baltimore to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Mytrip deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:20 am
BWI
-
SLU
2 stops34h 15m
Multiple Airlines
Mon 5/47:10 pm
SLU
-
BWI
3 stops28h 49m
Multiple Airlines
Deal found 1/28$921
This Mytrip deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:20 am
BWI
-
SLU
3 stops32h 15m
Multiple Airlines
Tue 2/247:10 pm
SLU
-
BWI
2 stops28h 43m
Multiple Airlines
Deal found 1/28$1,067
This Mytrip deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/126:20 am
BWI
-
SLU
3 stops28h 45m
Multiple Airlines
Sun 2/155:00 am
SLU
-
BWI
2 stops19h 31m
Multiple Airlines
Deal found 1/28$1,555
This Mytrip deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/136:20 am
BWI
-
SLU
2 stops29h 50m
Multiple Airlines
Sun 2/155:00 am
SLU
-
BWI
2 stops19h 31m
Multiple Airlines
Deal found 1/28$1,575

Find flight deals from Baltimore to Castries

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Castries (SLU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$921
(Mytrip)

Popular in

November

Cheapest in

December

Average price

$647
Provider with most accurate pricing for Baltimore/Washington-Castries George F. L. Charle flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Castries George F. L. Charle flights.
Search Deals
From Baltimore/Washington to Castries George F. L. Charle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($112 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($94 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Castries that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Baltimore to Castries that are best for you.

Fly from

Baltimore

Fly to

Castries

Route

Depart

Return

Price

BaltimoreCastries

BWI - SLU

BWISLU

Baltimore/Washington

Mon 4/27

5:20 am-3:35 pm

2 stops34h 15m

Castries George F. L. Charle

Mon 5/4

7:10 pm-11:59 pm

3 stops28h 49m

$921

BaltimoreCastries

BWI - SLU

BWISLU

Baltimore/Washington

Thu 2/19

6:20 am-3:35 pm

3 stops32h 15m

Castries George F. L. Charle

Tue 2/24

7:10 pm-10:53 pm

2 stops28h 43m

$1,067

BaltimoreCastries

BWI - SLU

BWISLU

Baltimore/Washington

Thu 2/12

6:20 am-12:05 pm

3 stops28h 45m

Castries George F. L. Charle

Sun 2/15

5:00 am-11:31 pm

2 stops19h 31m

$1,555

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Compare providers for flights from Baltimore to Castries

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Castries in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-Castries flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Castries flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Castries flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Castries flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Castries flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Baltimore to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Baltimore to Castries?

Currently, November is the cheapest month in which you can book a flight from Baltimore to Castries (average of $179). Flying from Baltimore to Castries in October is currently the most expensive (average of $505). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Castries

Get insights into the airlines that provide service to Castries. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Castries. Reviews last updated January 29, 2026.
Read through reviews of airlines operating flights from Baltimore to Castries, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,205 reviews

Food

6.4

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.
American Airlines
7.2
Good
11,205 reviews
American Airlines
7.2
Good
11,205 reviews

Food

6.4

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Castries. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Baltimore to Castries round-trip?

    Cheapflights users have booked flights from Baltimore to Castries round-trip from $525.

  • Can I find deals for flights from Baltimore to Castries that include hotel bookings?

    Yes. In addition to deals on Baltimore to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Castries?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Castries.

  • Can I find deals for business class flights from Baltimore to Castries?

    Yes. Cheapflights offers flight deals from Baltimore to Castries by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to Castries?

    Currently, November is the cheapest month in which you can book a flight from Baltimore to Castries (average of $179). Flying from Baltimore to Castries in October is currently the most expensive (average of $505). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Castries?

Book flights to Castries if you plan to visit one of these locations
Gros Islet
Rodney Bay
Marigot Bay

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Alternative routes for Baltimore to Castries

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Castries flights
Baltimore to Castries flights
Reagan-National to Castries flights
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Philadelphia to Castries flights

Top airline flying from Baltimore to Castries

Discover the top airline that operate flights from Baltimore to Castries. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$525Average$1,054FlexibilityNo cancel feeOn-time71%

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