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Castries

$321+ Cheap flights from Baltimore (BWI) to Castries (SLU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SLU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$770
(Mytrip)

One-way from

$321
(Kiwi.com)

Popular in

June

Cheapest in

May

Average price

$705
From Baltimore/Washington to Castries George F. L. Charle
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One-way flight from Baltimore/Washington to Castries George F. L. Charle
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Highest demand for flights based on searches. 12% potential increase in price ($106 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($51 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Mytrip deal was found by Cheapflights users on 9/9. 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 11/75:10 amBWI - SLU
2 stops31h 00mMultiple Airlines
Tue 11/117:30 amSLU - BWI
3 stops40h 41mMultiple Airlines
Deal found 9/9$770
This Mytrip deal was found by Cheapflights users on 9/10. 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 12/46:30 amBWI - SLU
3 stops28h 00mMultiple Airlines
Mon 12/84:35 pmSLU - BWI
3 stops25h 14mMultiple Airlines
Deal found 9/10$802
This Mytrip deal was found by Cheapflights users on 9/9. 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 11/69:37 pmBWI - SLU
3 stops38h 33mMultiple Airlines
Tue 11/117:30 amSLU - BWI
3 stops40h 41mMultiple Airlines
Deal found 9/9$818
This Mytrip deal was found by Cheapflights users on 9/11. 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 10/246:56 amBWI - SLU
2 stops30h 14mMultiple Airlines
Sun 10/2612:10 pmSLU - BWI
3 stops35h 23mMultiple Airlines
Deal found 9/11$847
This Mytrip deal was found by Cheapflights users on 9/11. 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 11/1010:48 amBWI - SLU
3 stops24h 17mMultiple Airlines
Sat 11/156:20 pmSLU - BWI
3 stops25h 14mMultiple Airlines
Deal found 9/11$891
This Mytrip deal was found by Cheapflights users on 9/11. 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 11/149:46 pmBWI - SLU
3 stops23h 24mMultiple Airlines
Fri 11/2112:15 pmSLU - BWI
3 stops35h 56mMultiple Airlines
Deal found 9/11$932

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 September 11, 2025.
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

Fri 11/7

5:10 am-1:10 pm

2 stops31h 00m

Castries George F. L. Charle

Tue 11/11

7:30 am-11:11 pm

3 stops40h 41m

$770

BaltimoreCastries

BWI - SLU

BWISLU

Baltimore/Washington

Thu 12/4

6:30 am-11:30 am

3 stops28h 00m

Castries George F. L. Charle

Mon 12/8

4:35 pm-4:49 pm

3 stops25h 14m

$802

BaltimoreCastries

BWI - SLU

BWISLU

Baltimore/Washington

Thu 11/6

9:37 pm-1:10 pm

3 stops38h 33m

Castries George F. L. Charle

Tue 11/11

7:30 am-11:11 pm

3 stops40h 41m

$818

BaltimoreCastries

BWI - SLU

BWISLU

Baltimore/Washington

Fri 10/24

6:56 am-1:10 pm

2 stops30h 14m

Castries George F. L. Charle

Sun 10/26

12:10 pm-11:33 pm

3 stops35h 23m

$847

BaltimoreCastries

BWI - SLU

BWISLU

Baltimore/Washington

Mon 11/10

10:48 am-12:05 pm

3 stops24h 17m

Castries George F. L. Charle

Sat 11/15

6:20 pm-6:34 pm

3 stops25h 14m

$891

BaltimoreCastries

BWI - SLU

BWISLU

Baltimore/Washington

Fri 11/14

9:46 pm-10:10 pm

3 stops23h 24m

Castries George F. L. Charle

Fri 11/21

12:15 pm-11:11 pm

3 stops35h 56m

$932

BaltimoreCastries

BWI - SLU

BWISLU

Baltimore/Washington

Fri 10/24

6:56 am-1:10 pm

2 stops30h 14m

$321

BaltimoreCastries

BWI - SLU

BWISLU

Baltimore/Washington

Sat 11/15

6:45 am-7:00 pm

3 stops35h 15m

$432

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

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, August is the cheapest month in which you can book a flight from Baltimore to Castries (average of $525). Flying from Baltimore to Castries in July is currently the most expensive (average of $767). 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 September 11, 2025.
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
10,000 reviews

Comfort

7.2

Entertainment

6.9

Overall

7.2

Food

6.4

Crew

8.0

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Entertainment

6.9

Overall

7.2

Food

6.4

Crew

8.0

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

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 $610. Users have found that American Airlines is 20% cheaper than the other options available to this destination.

  • 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, August is the cheapest month in which you can book a flight from Baltimore to Castries (average of $525). Flying from Baltimore to Castries in July is currently the most expensive (average of $767). 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
Rodney Bay
Gros Islet
Marigot Bay

Browse thousands of different options on Cheapflights for your next trip

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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
Philadelphia to Castries flights
Reagan-National to Castries flights
Baltimore to Castries flights
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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$610Average$840FlexibilityNo cancel feeOn-time71%

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