DEN - SLU

$328 Find Cheap Flights from Denver 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 Denver to Castries departing on 10/14. 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

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 Denver 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 Denver to Castries, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Denver to Castries (DEN-SLU)

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

Fri, Nov 7 - Sat, Nov 15
Multiple Airlines Logo
6:05 pm - 10:10 pmDEN-SLU
25h 05m3 stops
Multiple Airlines Logo
6:20 pm - 5:53 pmSLU-DEN
26h 33m3 stops
$957Multiple Airlines
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Fri, Nov 7 - Sat, Nov 15
Multiple Airlines Logo
1:25 pm - 7:00 pmDEN-SLU
26h 35m2 stops
Multiple Airlines Logo
6:20 pm - 5:53 pmSLU-DEN
26h 33m3 stops
$1,036Multiple Airlines
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Wed, Oct 15 - Wed, Oct 22
Multiple Airlines Logo
6:05 pm - 7:00 pmDEN-SLU
22h 55m3 stops
Multiple Airlines Logo
12:35 pm - 4:29 pmSLU-DEN
29h 54m2 stops
$1,076Multiple Airlines
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Thu, Nov 13 - Fri, Nov 21
Multiple Airlines Logo
6:23 pm - 1:10 pmDEN-SLU
39h 47m3 stops
Multiple Airlines Logo
12:35 pm - 12:37 pmSLU-DEN
27h 02m3 stops
$1,087Multiple Airlines
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Fri, Nov 7 - Sat, Nov 15
Multiple Airlines Logo
1:25 pm - 7:00 pmDEN-SLU
26h 35m2 stops
Multiple Airlines Logo
9:10 am - 10:23 amSLU-DEN
28h 13m2 stops
$1,125Multiple Airlines
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Thu, Dec 11 - Mon, Dec 15
Multiple Airlines Logo
1:25 pm - 7:00 pmDEN-SLU
26h 35m2 stops
Multiple Airlines Logo
12:35 pm - 7:55 pmSLU-DEN
34h 20m2 stops
$1,154Multiple Airlines
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Thu, Dec 11 - Mon, Dec 15
Multiple Airlines Logo
11:15 am - 7:00 pmDEN-SLU
28h 45m3 stops
Multiple Airlines Logo
9:10 am - 4:40 pmSLU-DEN
34h 30m3 stops
$1,161Multiple Airlines
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Wed, Oct 15 - Wed, Oct 22
Multiple Airlines Logo
1:25 pm - 1:10 pmDEN-SLU
21h 45m2 stops
Multiple Airlines Logo
12:35 pm - 10:04 amSLU-DEN
23h 29m2 stops
$1,407Multiple Airlines
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Sat, Oct 4 - Sat, Oct 11
Multiple Airlines Logo
1:25 pm - 11:45 amDEN-SLU
20h 20m2 stops
Multiple Airlines Logo
12:35 pm - 10:04 amSLU-DEN
23h 29m2 stops
$1,589Multiple Airlines
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Sat, Oct 4 - Sat, Oct 11
Multiple Airlines Logo
1:25 pm - 11:45 amDEN-SLU
20h 20m2 stops
Multiple Airlines Logo
6:20 pm - 5:40 pmSLU-DEN
25h 20m3 stops
$1,752Multiple Airlines
Find Deal

Everything you should know

When to travel
February
Cheapest • 30% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$957
Overall average: $881
Multiple Airlines
Fri 11/7Sat 11/15
DEN - SLU • 3 stops
Cheapest one-way
$328
Multiple Airlines
Tue 10/14
DEN - SLU • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Castries!
Booking Insights

KAYAK's insights & trends for Denver to Castries flights

Get data-powered insights and trends into flights from Denver to Castries to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Denver to Castries?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Castries, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Castries is February, where tickets cost $575 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,130 and $1,007 respectively.

Find deals

Good to know

Low seasonJune
Cheapest flight$328
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Denver to Castries

When to book flights from Denver to Castries

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

  • What is the cheapest flight from Denver to Castries?

    In the last 3 days, the lowest price for a flight from Denver to Castries was $328 for a one-way ticket and $957 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Denver and on arrival in Castries.

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

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

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

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

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

 
See real verified KAYAK customer reviews for airlines flying from Denver 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 Denver 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 10000 reviews
7.2Comfort
8.0Crew
6.4Food
6.9Entertainment
7.5Boarding
Airline reviews

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

10.0 ExcellentDouglas, Sep 2025SLC - CLT
Read more American Airlines reviews

Given it’s a red-eye into Charolotte, we didn’t get any food. The survey does not include “N/A” so the rating will be skewed.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

Having to reschedule flights a day later, they loaded by luggage on the wrong plane from Little rock now I have to HOPE they deliver it to where im staying like they said would. International flight crew was very disgruntled and not very friendly.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The entertainment package was vast and the selections were very current. Keep updating it was great.

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

Information on your arrival and departure airports

Denver (DEN)
Castries (SLU)

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