Cheap Flights from Philadelphia to Castries
No deal from Philadelphia to Castries has cleared our price bar yet. What we have seen on the route is below.
Across 3 months of observations from Philadelphia to Castries, the lowest round-trip fare we recorded was $898, in September. The typical fare was $1112. September was the cheapest month we saw and October the dearest.
The most recent price we saw on this route was $1291 on JetBlue, United, and Winair, seen Oct 28. It is an unverified observation and may have changed.
See every deal <a href="/from/philadelphia">from Philadelphia</a>, <a href="/to/castries">to Castries</a>, or the return direction <a href="/from/castries/to/philadelphia">Castries to Philadelphia</a>.
Latest price we saw: Philadelphia to Castries
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 |
|---|---|---|---|---|---|---|
| Philadelphia (PHL) to Castries (SLU) | $1291 | 32.5¢ | Mar 15 – Mar 22 | JetBlue, United, and Winair | Oct 28 | Check price |
Price history: Philadelphia to Castries
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $1153 | $1279 | 28 |
| Sep 2026 | $898 | $998 | 37 |
| Aug 2026 | $1019 | $1059 | 47 |
Frequently asked questions
How many flight deals from Philadelphia to Castries are on Sparkflights right now?
There are 0 verified deals from Philadelphia to Castries on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Philadelphia to Castries?
The lowest fare we've recorded from Philadelphia to Castries is $898, based on 112 price observations over 3 months.
How much does a flight from Philadelphia to Castries cost?
The typical round-trip fare we observed from Philadelphia to Castries is $1112, against a recorded low of $898. These are observations, not quotes.
When is the cheapest month to fly Philadelphia to Castries?
September was the cheapest month we observed from Philadelphia to Castries and October the dearest, over 3 months of data.
What is the current price from Philadelphia to Castries?
The most recent fare our sweep saw from Philadelphia to Castries is $1291, on Oct 28. It is an unverified observation rather than a verified deal, so check it before booking.