Cheap Flights from Castries to Washington, D.C.
No deal from Castries to Washington, D.C. has cleared our price bar yet. What we have seen on the route is below.
Across 2 months of observations from Castries to Washington, D.C., the lowest round-trip fare we recorded was $1343, in October. The typical fare was $2718. October was the cheapest month we saw and September the dearest.
The most recent price we saw on this route was $1512 on JetBlue and Winair, seen Oct 28. It is an unverified observation and may have changed.
See every deal <a href="/from/castries">from Castries</a>, <a href="/to/washington-dc">to Washington, D.C.</a>, or the return direction <a href="/from/washington-dc/to/castries">Washington, D.C. to Castries</a>.
Latest price we saw: Castries to Washington, D.C.
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Castries (SLU) to Washington, D.C. (DCA) | $1512 | 38.3¢ | Oct 29 – Nov 4 | JetBlue and Winair | Oct 28 | Check price |
Price history: Castries to Washington, D.C.
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $1343 | $1776 | 13 |
| Sep 2026 | $2042 | $3661 | 3 |
Frequently asked questions
How many flight deals from Castries to Washington, D.C. are on Sparkflights right now?
There are 0 verified deals from Castries to Washington, D.C. on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Castries to Washington, D.C.?
The lowest fare we've recorded from Castries to Washington, D.C. is $1343, based on 16 price observations over 2 months.
How much does a flight from Castries to Washington, D.C. cost?
The typical round-trip fare we observed from Castries to Washington, D.C. is $2718, against a recorded low of $1343. These are observations, not quotes.
When is the cheapest month to fly Castries to Washington, D.C.?
October was the cheapest month we observed from Castries to Washington, D.C. and September the dearest, over 2 months of data.
What is the current price from Castries to Washington, D.C.?
The most recent fare our sweep saw from Castries to Washington, D.C. is $1512, on Oct 28. It is an unverified observation rather than a verified deal, so check it before booking.