Cheap flights from Washington, D.C. Dulles Intl Airport to Castries from $845
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Castries departing on 8/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Castries
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Castries?
The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Castries is on a Monday when prices can be found for as low as $671. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $849. These prices are subject to change though, so be sure to set up a Price Alert for flights to Castries.
What is the cheapest time of day to depart on your flight to Castries?
According to our data, the cheapest time of day to fly to Castries is in the evening. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Castries in the evening for as low as $715. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Castries are more costly in the morning, with an average ticket price of $764. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
When to book flights from Washington, D.C. Dulles Intl Airport to Castries
Cheap Washington, D.C. Dulles Intl Airport to Castries (IAD to SLU) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Castries
How far is Washington, D.C. Dulles Intl to Castries George F. L. Charle by plane?
There are 1992.4 mi between Washington, D.C. Dulles Intl and Castries George F. L. Charle. Typically, this will take 16h 18m by plane in normal conditions.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Castries George F. L. Charle Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Castries George F. L. Charle Airport are updated daily.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Castries George F. L. Charle Airport?
There is 1 operator available for flights from Washington, D.C. Dulles Intl Airport to Castries George F. L. Charle Airport as of July 2025.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Castries George F. L. Charle Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Castries George F. L. Charle Airport.
What documentation or ID do you need to fly to Castries George F. L. Charle Airport?
The required travel and health documents for your Castries George F. L. Charle Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Castries George F. L. Charle Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Washington, D.C. Dulles Intl Airport to Castries?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. Dulles Intl Airport to Castries is American Airlines, representing 100% of all bookings.
Best airlines flying from Washington, D.C. Dulles Intl Airport to Castries
Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Castries with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $535 | Free Cancellation | Rating 7.2 10,000 reviews |
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Why should I use momondo to find a flight deal from Washington, D.C. to Castries?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Castries from Washington, D.C..
Can I find flights from Washington, D.C. to Castries with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Washington, D.C. to Castries flights to just show those with flexible booking policies.
How can momondo help me find flights from Washington, D.C. to Castries?
momondo helps you find the best flight between Washington, D.C. and Castries by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Washington, D.C. to Castries right now. Can momondo alert me if prices change?
Price alerts on flights to Castries from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.