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Castries

$3,596+ Cheap flights from Denver (DEN) 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SLU
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Denver to Castries

Best flights from Denver to Castries
Discover carefully curated flight deals from Denver to Castries that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This Travelocity deal was found by Cheapflights users on 12/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/71:25 pmDEN - SLU
2 stops43h 05mMultiple Airlines
Wed 1/1410:15 amSLU - DEN
2 stops51h 08mMultiple Airlines
Deal found 12/9$3,596
This Orbitz deal was found by Cheapflights users on 12/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/66:05 pmDEN - SLU
2 stops37h 25mMultiple Airlines
Sat 4/116:20 pmSLU - DEN
2 stops41h 55mMultiple Airlines
Deal found 12/11$3,601
This Expedia deal was found by Cheapflights users on 12/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/275:30 pmDEN - SLU
3 stops42h 45mMultiple Airlines
Sat 3/76:20 pmSLU - DEN
2 stops42h 03mMultiple Airlines
Deal found 12/10$3,601
This Expedia deal was found by Cheapflights users on 12/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:30 pmDEN - SLU
2 stops44h 05mMultiple Airlines
Sat 4/46:20 pmSLU - DEN
2 stops24h 15mMultiple Airlines
Deal found 12/9$3,601
This Orbitz deal was found by Cheapflights users on 12/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/215:30 pmDEN - SLU
2 stops44h 05mMultiple Airlines
Sat 3/286:20 pmSLU - DEN
2 stops48h 15mMultiple Airlines
Deal found 12/9$3,601
This Orbitz deal was found by Cheapflights users on 12/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:25 pmDEN - SLU
2 stops20h 20mMultiple Airlines
Thu 4/236:20 pmSLU - DEN
2 stops41h 55mMultiple Airlines
Deal found 12/11$3,601
This Expedia deal was found by Cheapflights users on 12/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/151:25 pmDEN - SLU
2 stops24h 10mMultiple Airlines
Sat 3/216:20 pmSLU - DEN
2 stops42h 03mMultiple Airlines
Deal found 12/11$4,053

Find flight deals from Denver to Castries

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$3,596
(Travelocity)

Popular in

December

Cheapest in

February

Average price

$1,673
Provider with most accurate pricing for Denver Intl-Castries George F. L. Charle flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Castries George F. L. Charle flights.
Search Deals
From Denver Intl to Castries George F. L. Charle
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($254 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($79 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 December 12, 2025.
Use the filters below to find and compare flights from Denver to Castries that are best for you.

Fly from

Denver

Fly to

Castries

Route

Depart

Return

Price

DenverCastries

DEN - SLU

DENSLU

Denver Intl

Wed 1/7

1:25 pm-11:30 am

2 stops43h 05m

Castries George F. L. Charle

Wed 1/14

10:15 am-10:23 am

2 stops51h 08m

$3,596

DenverCastries

DEN - SLU

DENSLU

Denver Intl

Mon 4/6

6:05 pm-9:30 am

2 stops37h 25m

Castries George F. L. Charle

Sat 4/11

6:20 pm-10:15 am

2 stops41h 55m

$3,601

DenverCastries

DEN - SLU

DENSLU

Denver Intl

Fri 2/27

5:30 pm-3:15 pm

3 stops42h 45m

Castries George F. L. Charle

Sat 3/7

6:20 pm-9:23 am

2 stops42h 03m

$3,601

DenverCastries

DEN - SLU

DENSLU

Denver Intl

Sat 3/28

5:30 pm-3:35 pm

2 stops44h 05m

Castries George F. L. Charle

Sat 4/4

6:20 pm-4:35 pm

2 stops24h 15m

$3,601

DenverCastries

DEN - SLU

DENSLU

Denver Intl

Sat 3/21

5:30 pm-3:35 pm

2 stops44h 05m

Castries George F. L. Charle

Sat 3/28

6:20 pm-4:35 pm

2 stops48h 15m

$3,601

DenverCastries

DEN - SLU

DENSLU

Denver Intl

Sat 4/18

1:25 pm-11:45 am

2 stops20h 20m

Castries George F. L. Charle

Thu 4/23

6:20 pm-10:15 am

2 stops41h 55m

$3,601

DenverCastries

DEN - SLU

DENSLU

Denver Intl

Sun 3/15

1:25 pm-3:35 pm

2 stops24h 10m

Castries George F. L. Charle

Sat 3/21

6:20 pm-10:23 am

2 stops42h 03m

$4,053

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Compare providers for flights from Denver 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 Denver to Castries in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 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 Denver-Castries flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Castries flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Castries flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Castries flights, Cheapflights users trust eDreams the most. eDreams 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 Denver-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 Denver to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from Denver 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 Denver to Castries

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

Currently, August is the cheapest month in which you can book a flight from Denver to Castries (average of $226). Flying from Denver to Castries in July is currently the most expensive (average of $652). 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 December 12, 2025.
Peruse reviews from past customers who have flown with American Airlines from Denver to Castries to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,050 reviews

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Crew

8.0

Overall

7.2

Food

6.5

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,050 reviews
American Airlines
7.2
Good
11,050 reviews

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Crew

8.0

Overall

7.2

Food

6.5

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

Related info for your journey

Find useful and relevant information for your journey from Denver 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 Denver to Castries round-trip?

    Our cheapest airline available from Denver to Castries is American Airlines. Our recent data shows that you can find tickets from as low as $587 on this airline. American Airlines is priced at 34% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver 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 Denver to Castries?

    Currently, August is the cheapest month in which you can book a flight from Denver to Castries (average of $226). Flying from Denver to Castries in July is currently the most expensive (average of $652). 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 Denver to Castries

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Castries flights
Colorado Springs to Castries flights

Top airline flying from Denver to Castries

Discover the top airline that operate flights from Denver 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$587Average$867FlexibilityNo cancel feeOn-time71%

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