DEN - SLU

$708 Find Cheap Flights from Denver to Castries

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Castries departing on 6/2. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flight Deals 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.

Recent round-trip flight deals from Denver to Castries

KAYAK's recommended round-trip deals from the most popular airlines that fly from Denver to Castries.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
4:19 pm - 9:30 amDEN-SLU
39h 11m2 stops
 Logo
12:15 pm - 12:17 amSLU-DEN
38h 02m2 stops
Mon, Jun 2 - Fri, Jun 6
 Logo
4:19 pm - 9:30 amDEN-SLU
39h 11m2 stops
 Logo
12:15 pm - 12:17 amSLU-DEN
38h 02m3 stops
Mon, Jun 2 - Fri, Jun 6
 Logo
4:23 pm - 1:10 pmDEN-SLU
42h 47m2 stops
 Logo
6:20 pm - 1:17 amSLU-DEN
32h 57m2 stops
Tue, Jun 10 - Sat, Jun 14
 Logo
4:23 pm - 1:10 pmDEN-SLU
42h 47m2 stops
 Logo
6:20 pm - 1:17 amSLU-DEN
32h 57m2 stops
Tue, Jun 24 - Sat, Jun 28
 Logo
5:41 pm - 1:10 pmDEN-SLU
41h 29m3 stops
 Logo
6:20 pm - 6:45 pmSLU-DEN
26h 25m3 stops
$1,049
Find Deal
Thu, Jun 12 - Thu, Jun 19
 Logo
4:14 pm - 1:10 pmDEN-SLU
42h 56m2 stops
 Logo
4:35 pm - 1:17 amSLU-DEN
34h 42m2 stops
$1,067
Find Deal
Thu, Jul 17 - Mon, Jul 21
 Logo
5:41 pm - 1:10 pmDEN-SLU
41h 29m3 stops
 Logo
9:10 am - 10:20 amSLU-DEN
27h 10m2 stops
$1,429
Find Deal
Thu, Jun 12 - Thu, Jun 19
 Logo
7:45 am - 11:30 amDEN-SLU
49h 45m2 stops
 Logo
10:15 am - 10:30 amSLU-DEN
26h 15m2 stops
$3,679
Find Deal
Wed, May 28 - Wed, Jun 4
 Logo
7:45 am - 3:50 pmDEN-SLU
30h 05m2 stops
 Logo
6:20 pm - 10:30 amSLU-DEN
42h 10m2 stops
$3,725
Find Deal
Sun, May 25 - Thu, May 29
 Logo
7:45 am - 3:50 pmDEN-SLU
54h 05m2 stops
 Logo
6:20 pm - 10:20 amSLU-DEN
42h 00m2 stops
$3,781
Find Deal
Sat, Jul 26 - Thu, Jul 31
Useful Info

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 September, where tickets cost $530 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,135 and $989 respectively.

Good to know

Low seasonJanuary
High seasonMay
Cheapest flight$708
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 6% 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 $708 for a round-trip ticket.

  • 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.

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
7.5Boarding
6.5Food
7.2Comfort
6.9Entertainment
8.0Crew
Airline reviews

Several delays. Next flight was worse. Did not arrive home until 2am PT

4.0 OkayDuncan, Apr 2025SAV - DFW
Read more American Airlines reviews

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.