IAD - UVF

$186 Find Cheap Flights from Washington Dulles Airport 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 Dulles Intl to Castries departing on 8/28. 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 Washington, D.C. 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 Washington, D.C. to Castries, as well as popular online travel agencies
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Flights 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

Mon, Sep 15 - Tue, Sep 30
Air Canada Logo
2:25 pm - 2:15 pmIAD-UVF
23h 50m1 stop
Air Canada Logo
3:10 pm - 9:38 amUVF-IAD
18h 28m1 stop
$418Air Canada
Find Deal
Wed, Sep 3 - Tue, Sep 9
Air Canada Logo
5:37 pm - 2:15 pmIAD-UVF
44h 38m2 stops
Air Canada Logo
3:10 pm - 9:38 amUVF-IAD
18h 28m1 stop
$443Air Canada
Find Deal
Mon, Sep 15 - Tue, Sep 30
Air Canada Logo
12:35 pm - 2:15 pmIAD-UVF
25h 40m2 stops
Air Canada Logo
3:10 pm - 9:05 pmUVF-IAD
29h 55m2 stops
$458Air Canada
Find Deal
Mon, Jan 19 - Wed, Jan 28
Delta Logo
6:00 am - 3:04 pmIAD-UVF
8h 04m1 stop
Delta Logo
4:24 pm - 12:07 amUVF-IAD
8h 43m1 stop
$495Delta
Find Deal
Mon, Oct 6 - Tue, Oct 14
Air Canada Logo
9:35 am - 2:15 pmIAD-UVF
28h 40m2 stops
Air Canada Logo
3:10 pm - 11:13 amUVF-IAD
20h 03m2 stops
$508Air Canada
Find Deal
Thu, Oct 23 - Mon, Oct 27
Air Canada Logo
3:36 pm - 2:15 pmIAD-UVF
22h 39m1 stop
Air Canada Logo
4:15 pm - 11:45 amUVF-IAD
19h 30m1 stop
$517Air Canada
Find Deal
Wed, Jan 7 - Wed, Jan 14
American Airlines Logo
5:00 am - 2:25 pmIAD-UVF
8h 25m1 stop
American Airlines Logo
5:10 pm - 11:56 pmUVF-IAD
7h 46m1 stop
$567American Airlines
Find Deal
Thu, Jan 22 - Fri, Jan 23
Delta Logo
6:00 am - 3:04 pmIAD-UVF
8h 04m1 stop
Delta Logo
4:24 pm - 9:11 amUVF-IAD
17h 47m1 stop
$570Delta
Find Deal
Tue, Dec 9 - Tue, Dec 16
American Airlines Logo
8:14 pm - 1:00 pmIAD-UVF
15h 46m2 stops
American Airlines Logo
5:05 pm - 11:55 pmUVF-IAD
7h 50m1 stop
$572American Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
United Airlines Logo
6:20 am - 1:31 pmIAD-UVF
7h 11m1 stop
United Airlines Logo
2:35 pm - 10:30 pmUVF-IAD
7h 55m1 stop
$727United Airlines
Find Deal
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.

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 February, where tickets cost $636 (return) on average. On the other hand, the most expensive months are June and October, where the average cost of round-trip tickets is $1,371 and $1,014 respectively.

Good to know

Low seasonSeptember
Cheapest flight$186
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 16% increase in price.
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 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Castries was $186 for a one-way ticket and $418 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Washington Dulles Airport and Castries, with Star Alliance 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 $795 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $782 and an overall rating of 7.2.

  • 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.
8.0
DeltaOverall score based on 7983 reviews
7.9Comfort
8.5Crew
7.3Food
7.9Entertainment
8.2Boarding
Airline reviews

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

2.0 MediocreGim, Jul 2025BGM - DTW
Read more Delta reviews

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Only issue was with seating. The economy fare we purchased did say there was no guarantee the three people in our party would be seated together, and we were not. At the gate, the agent told us more specifically, the fare we purchased meant we would be seated in middle seats only. This should just be made more obvious.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

We had to turn around and head back to Manchester. Problem with a plane engine.

Flight was delayed. Staff at the gate effectively and proactively communicated about the delay.

Very poor delay in dfw was really bad n long

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

Couldn’t get the door on the plane to close leading to a nearly 2 hour delay. But, hey at least they didn’t cancel the flight.

Flight was cancelled 3 hrs AFTER etd. Thetefore Missed connection from JFK to New Zealand . No accommodation provided… This cost ne aporox 1000 USD in extra expenses and turned whst should have been a 24 hr trip ftom Boston - New Zealand into a VERY expensive , late 70+ hr nightmare … Complete nonsense!!!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

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

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