IAD - UVF

$195 Find Cheap Flights from Washington Dulles Airport to Castries - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Castries departing on 10/31. 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, 0 bags

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Everything you should know

Cheapest round-trip
$390
Typical prices: $751-$906
Air Canada
Sun 10/25Thu 10/29
IAD - UVF • 1 stop
Cheapest one-way
$195
Air Canada
Sat 10/31
IAD - UVF • 1 stop
Top airlines
Cheapest • from $390 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Castries. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $568 (round-trip)
Shortest trip • 7h 47m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 51% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Castries!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Castries (IAD-UVF)

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

Sun, Oct 25 - Thu, Oct 29
Air Canada Logo
4:30 pm - 3:40 pm-
23h 10m
Air Canada Logo
4:40 pm - 3:45 pm-
23h 05m
$390Air Canada
Thu, Oct 22 - Sun, Oct 25
Air Canada Logo
9:55 am - 2:15 pm-
28h 20m
Air Canada Logo
4:40 pm - 3:45 pm-
23h 05m
$390Air Canada
Sun, Oct 25 - Thu, Oct 29
Air Canada Logo
4:30 pm - 3:40 pm-
23h 10m
Air Canada Logo
4:40 pm - 3:45 pm-
23h 05m
$390Air Canada
Thu, Oct 22 - Sun, Oct 25
Air Canada Logo
3:45 pm - 2:15 pm-
22h 30m
Air Canada Logo
4:40 pm - 8:10 pm-
27h 30m
$393Air Canada
Sun, Aug 30 - Thu, Sep 3
American Airlines Logo
5:08 am - 2:29 pm-
9h 21m
American Airlines Logo
3:19 pm - 10:55 pm-
7h 36m
$626American Airlines
Sun, Aug 30 - Thu, Sep 3
American Airlines Logo
6:33 am - 2:29 pm-
7h 56m
American Airlines Logo
3:19 pm - 10:55 pm-
7h 36m
$626American Airlines
Mon, Jan 18 - Fri, Jan 22
American Airlines Logo
6:00 am - 3:03 pm-
8h 03m
American Airlines Logo
4:05 pm - 11:12 pm-
8h 07m
$626American Airlines
Tue, Sep 22 - Tue, Sep 29
Delta Logo
6:00 am - 2:12 pm-
8h 12m
Delta Logo
3:32 pm - 12:41 am-
9h 09m
$688Delta
Tue, Sep 1 - Wed, Sep 9
Delta Logo
6:00 am - 2:14 pm-
8h 14m
Delta Logo
3:32 pm - 12:41 am-
9h 09m
$688Delta
Wed, Sep 2 - Wed, Sep 9
Delta Logo
6:00 am - 2:14 pm-
8h 14m
Delta Logo
3:32 pm - 9:09 am-
17h 37m
$688Delta
Booking Insights

KAYAK's insights & trends for Dulles Intl to Castries flights

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

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Castries?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Castries departing in October.

Flight prices are below average for this route right now.

Flights to Castries from Washington, D.C. Dulles Intl Airport usually cost between $651 and $781 in October.
The lowest price found in the past 5 days was $390 on Air Canada (Oct 25-Oct 29).

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Castries?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport to Castries is January, where tickets cost $463 (return) on average. On the other hand, the most expensive months are November and June, where the average cost of round-trip tickets is $1,585 and $1,475 respectively.

Good to know

Low season

November

Cheapest flight

$195
Best time to beat the crowds but there is an average 67% increase in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Washington Dulles Airport to Castries

When to book flights from Dulles Intl to Castries

Are your dates flexible? Find out the best times to travel from Dulles Intl 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 Washington Dulles Airport to Castries flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Castries?

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Castries was $195 for a one-way ticket and $390 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Castries?

    Yes

  • Which airports will I be using when flying from Washington Dulles Airport to Castries?

    On your way to Castries, you’ll fly out from Washington, D.C. Dulles Intl. You’ll be landing at Castries Hewanorra.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Castries?

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

  • Which airline alliances offer flights from Washington Dulles Airport to Castries?

    SkyTeam, and oneworld are the airline alliances operating flights between Washington Dulles Airport and Castries, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Castries, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Castries are Delta and American Airlines. With an average price for the route of $1,041 and an overall rating of 7.8, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $757 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Washington Dulles Airport to Castries.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Castries from Washington Dulles Airport 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 Washington Dulles Airport 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 Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and UVF 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 Washington Dulles Airport 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 Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Dulles Intl to Castries

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. 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 Dulles Intl 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.
7.8
DeltaOverall score based on 8483 reviews
8.1Boarding
8.5Crew
7.2Food
7.8Entertainment
7.8Comfort
Airline reviews

My experience with Delta started with my luggage being found ripped open with items missing. The baggage office told me to bring the bag, and I wanted them to see how I found it. The agent refused, so I carried my bag into the office myself. The agent was nice enough to fix the zipper and gave me a red card with a number to call. I followed the steps; first one department, then the baggage department took over. This took more than two hours on the phone. The return flight was okay. The flight lead was checking her meals and then asked if we wanted anything before departure. However, throughout the flight, I had to ask for things because she was reading her book;which I have no issue with if she had been more attentive. At the end of the flight, the pilot appeared annoyed with the flight lead for not following his instructions regarding a meal he had requested; a chicken sandwichand said, "I asked for that for the flight." On the positive side, my work event in Vegas went well, and now I'm home relaxing.

4.0 OkayNoel, Aug 2026
Read more Delta reviews

My experience with Delta started with my luggage being found ripped open with items missing. The baggage office told me to bring the bag, and I wanted them to see how I found it. The agent refused, so I carried my bag into the office myself. The agent was nice enough to fix the zipper and gave me a red card with a number to call. I followed the steps; first one department, then the baggage department took over. This took more than two hours on the phone. The return flight was okay. The flight lead was checking her meals and then asked if we wanted anything before departure. However, throughout the flight, I had to ask for things because she was reading her book;which I have no issue with if she had been more attentive. At the end of the flight, the pilot appeared annoyed with the flight lead for not following his instructions regarding a meal he had requested; a chicken sandwichand said, "I asked for that for the flight." On the positive side, my work event in Vegas went well, and now I'm home relaxing.

Flight was delayed for about an hour but overall good experience

The gentleman at the gate I think his name is RIE was exceptional

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

I wouldn't say I liked being forced to check my small roller bag at the gate; too many people had bags and were in a higher boarding group.

715PM departure was 2.5 hours late. Received hotel & food voucher but after we already booked a room. Entire team just seemed like they were 2-3 steps behind in execution, and notifcations.

Disorganized boarding. Mandatory to gate check bags. Curt flight staff. No space for cabin bag, even when I was in first class.

Patrons with larger bags were asked to check the bags when boarding. Seems like the most effective, and least costly way, way to successfully use the cramped space.

They cancelled our flight two times after rebooking us for a later flight. We never got on the plane. We found another solution by driving.

Mostly great. Only issue was with the WiFi. Halfway through the flight it was spotty and I was unable to work as I planned. This impacted my work products as I am traveling for business and it was an unexpected hindrance which was inconvenient. Flight here was amazing. For a 5 hour flight something more than a Biscoff would be nice but I’m just swinging at windmills I guess…

Delayed boarding because a flight attendant couldn't find the gate...sat on the plane for over an hour at the gate because AA couldn't get one of the planes behind us to move

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

The small flights with Valet Luggage has a poor service

Overall a good experience, however Wifi was not working on the flight.

Human interaction. Thought there would be more service-even a smile would have been nice.

Everything you need to know for your flight from Dulles Intl to Castries

Information on your arrival and departure airports