$136 Flights from Denver (DENA) to Castries (SLUA)

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Find the cheapest month or even day of the year to fly to Castries

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Find the cheapest month to fly from Denver to Castries

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver to Castries flights are currently cheapest in May.

Alternative Denver to Castries routes

Looking for the cheapest, fastest or easiest route from Denver to Castries? You could fly into the following airports instead.

Denver to Castries: Flight information

The things to know before you go.
Cheapest flight found$136
Cheapest month to flyMay

Finding cheap flights from Denver to Castries: Frequently asked questions

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.
The best price we found for a round-trip flight from Denver to Castries is $505. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Denver to Castries. But we found flights with one or more stops from $505.
There are no flights flying from Denver to Castries, as of February 2026.
The cheapest month to fly from Denver to Castries is usually November.
If you're flying from Denver, the cheapest airport near Castries is St Lucia Hewanorra – which is 19.0 miles away from the center of Castries. We've found flights to this airport from $505.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Denver to Castries on Wednesday, November 11, 2026.
No airlines currently offer direct flights between Denver and Castries. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Castries but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Castries is around 40 days in advance, so don’t leave your flight to the last minute.
In February, the average temperature is usually around 78°F. September is typically the warmest month in Castries, when it usually averages around 83°F. You can expect the least rain in February. The coldest month is February, with temperatures averaging 77°F. The rainiest month is October.
The cheapest airline that flies to Castries is American Airlines.

Flying from Denver to Castries: what you need to know

  • Planning your getaway starts with figuring out where you'll fly out of in Denver. Denver International Airport (DEN) is the city's main airport, so explore your options for booking a flight from Denver to Castries departing from here.

  • George F. L. Charles Airport (SLU) and Hewanorra Airport (UVF) are Castries's major gateways.

  • Castries's timezone is UTC-4, making Castries two hours ahead of Denver.

  • To ensure you don't miss your Denver to Castries flight, leave enough time for things like check-in and baggage drop. Arriving two hours ahead of international departures and one hour before domestic flights is the general travel rule.

  • During popular months such as July, you'll want to get to the airport earlier than usual. Plan to arrive two hours before domestic departures and four hours ahead of international flights whenever you're flying during high season in general.

How to find the cheapest flights from Denver to Castries

  • Don't leave everything to the last minute. You're more likely to find cheap Denver to Castries flights if you book early. Airlines often offer some excellent early bird deals.

  • If you can be flexible with your trip dates, try using the 'Whole month' tool. It'll give you the cheapest price across the month when searching for your plane ticket from Denver to Castries.

  • There's no need to check back in every day to see if fares have dropped when you create a Price Alert. We'll tell you the moment there's a better deal on cheap flights from Denver to Castries.

  • Select your preferred departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your Denver to Castries flight results by 'Best,' 'Cheapest' or 'Fastest.'

Flying from Denver

Denver International Airport (DEN)

  • A stopover is the ideal opportunity to break up your journey — and maybe even explore another city. When browsing Denver to Castries flights leaving from Denver International Airport, uncheck the 'Direct flights only' box to see where you can visit along the way. Here are some popular options to consider:

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • Miami International Airport (MIA)

    • Philadelphia International Airport (PHL)

  • Traveling from central Denver to DEN takes about 1 hour 30 minutes by public transport. If you drive, ride-share or get a cab, you'll cover the 19 miles in 35 minutes or so, depending on traffic.

  • Get your flight from Denver to Castries off to a hassle-free start. Just a short ride from Denver International Airport, stay at Baymont by Wyndham Denver International Airport and be well-rested for the trip ahead.

  • 80.23% of flights departing from Denver International Airport touch down at their destination on time. Given its strong on-time stats, disruptions are unlikely when taking off from DEN.

  • DEN is located at 8500 Pena Boulevard.

Arriving in Castries

George F. L. Charles Airport (SLU)

  • George F. L. Charles Airport (SLU) is approximately 1 mile from central Castries. If you're catching a cab or a ride-share, the drive takes around 5 minutes.

  • Traveling to the center on public transport takes about 40 minutes.

  • The last thing you need is a lengthy journey to your hotel if you're arriving on a late flight from Denver to Castries. Check in to one of these accommodation options near SLU instead:

  • Explore without limits with a George F. L. Charles Airport rental car. Pick up your wheels from Drive A Matic, Final Rentals or Sixt and find adventure across Castries and beyond.

  • To get the best deal, reserve your vehicle from George F. L. Charles Airport about one week in advance of your Denver to Castries flight.

Hewanorra Airport (UVF)

  • The center of Castries is located around 19 miles from Hewanorra Airport (UVF). After your flight from Denver to Castries has touched down and you've navigated your way to arrivals, expect a drive of about 1 hour 10 minutes.

  • After your flight from Denver to Castries, tuck yourself in at a hotel near UVF. These are some great accommodation options that'll help you switch to relaxation mode:

  • No need to worry about public transport schedules or slow-moving cab lines. Grab a Hewanorra Airport rental car and let the journey unfold your way. Check out the availability and rates from Drive A Matic, Sixt and Final Rentals.

  • Avoid paying extra. Securing your ride one week ahead of your arrival at UVF will save you money.

Best time to go to Castries

  • It's time to pick your travel dates for your flight from Denver to Castries. June is the busiest month to travel to Castries. If you prefer a more relaxed atmosphere, go in February.

  • Lock in a Denver to Castries ticket departing in September if you want to explore the city during its warmest month. You can expect temperatures in Castries to range from 79ºF to 86ºF.

  • Search for cheap flights from Denver to Castries in February if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 75ºF and 82ºF on average.

More about Castries

  • When it comes to searching for somewhere to lay your head, you'll find the top stays in Castries right here. Check out these options once you've locked in your flight from Denver to Castries:

  • Derek Walcott Square and Morne Fortune are just the start of the top attractions to put on your Castries must-do list. Continue your sightseeing adventures at Immaculate Conception Church.

Explore more of Saint Lucia

  • You've visited Castries, now it's time to explore more of Saint Lucia. Journey about 20 miles south to Vieux Fort to check off its must-visit sights. From Maria Islands Museum to Anse Des Sables Beach and YoungFaith Park, you've got a jam-packed schedule ahead.

  • Journey 15 miles south-east from Castries to visit Micoud, another favorite among visitors to Saint Lucia. Don't leave without exploring Josephine Splash Park and Ti Rocher Community Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.