Cheap Flights from Phoenix (PHXA) to Castries (SLUA)

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Find the cheapest month or even day of the year to fly to Castries

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Find the cheapest month to fly from Phoenix to Castries

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phoenix to Castries flights are currently cheapest in November.

Alternative Phoenix to Castries routes

Looking for the cheapest, fastest or easiest route from Phoenix to Castries? You could fly into the following airports instead.

Phoenix to Castries: Flight information

The things to know before you go.
Cheapest flight found£251
Cheapest month to flyNovember

Finding cheap flights from Phoenix to Castries: Frequently asked questions

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.
The best price we found for a return flight from Phoenix to Castries is £574. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Phoenix to Castries. But we found flights with one or more stops from £574.
As of June 2026, there are no flights flying from Phoenix to Castries.
The cheapest month to fly from Phoenix to Castries is usually November.
If you're flying from Phoenix, the cheapest airport near Castries is St Lucia Hewanorra – which is 18.9 miles away from the centre of Castries. We've found flights into this airport from £574.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Phoenix to Castries on Wednesday, 18 November 2026.
No airlines currently offer direct flights between Phoenix and Castries. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Castries but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Castries is around 40 days in advance, so don’t leave your flight to the last minute.

In June, the average temperature is usually around 28°C. September is typically the warmest month in Castries, when it usually averages around 28°C. You can expect the least rain in February. The coldest month is February, with temperatures averaging 25°C. The rainiest month is October.
The cheapest airline that flies to Castries is Air Canada .

Travelling from Phoenix to Castries: what you need to know

  • Phoenix Sky Harbour Airport (PHX) is Phoenix's main airport. Explore your options for booking a flight from Phoenix to Castries jetting off from here.

  • St Lucia Hewanorra Airport (UVF) and St Lucia Vigie Airport (SLU) are Castries's major entry points.

  • Castries's timezone is UTC-4, which makes Castries three hours ahead of Phoenix.

  • Leave plenty of time to get on your Phoenix to Castries flight. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • During popular months such as April, you'll want to get to the airport well in advance. Plan to arrive two hours before domestic departures and four hours ahead of international flights when you travel during high season in general.

How to find the cheapest flights from Phoenix to Castries

  • To pick up cheap Phoenix to Castries flights, book as early as you can. Airlines tend to offer lower fares when flights first go on sale.

  • If you can be flexible with your trip dates, use the 'Whole month' search tool. It'll give you the cheapest price in every month when looking for your plane ticket from Phoenix to Castries.

  • Spend less time searching for cheap flights from Phoenix to Castries by setting up a Price Alert. You'll get an email or notification on the app when a lower fare becomes available.

  • Tailor your flights using filters. Select your departure and arrival times, airlines and total journey duration. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best' Phoenix to Castries flights.

Flying from Phoenix

Phoenix Sky Harbour Airport (PHX)

  • Stopovers are the perfect opportunity to break up your trip — and maybe even explore a different city. When browsing Phoenix to Castries flights leaving from Phoenix Sky Harbour Airport, deselect the 'Direct flights only' box to see where you can visit along the way. Top options include:

    • New York Newark Airport (EWR)

    • Miami International Airport (MIA)

    • Philadelphia International Airport (PHL)

  • PHX is around 6 kms (4 miles) from central Phoenix. If you're ride-sharing, driving or catching a taxi from the centre, it'll take you 10 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the journey time to be around 25 minutes.

  • After a stress-free start to your journey? Stay near Phoenix Sky Harbour Airport. Whether you're boarding an early flight from Phoenix to Castries or just don't want to be rushed, these hotels are ideal:

  • 80% of flights departing from Phoenix Sky Harbour Airport land at their destination as planned. With its solid on-time performance, disruptions are unlikely when flying out of PHX.

  • The address for PHX is 3400 Sky Harbour Boulevard.

Arriving in Castries

St Lucia Hewanorra Airport (UVF)

  • St Lucia Hewanorra Airport (UVF) to central Castries takes about 1 hour 30 minutes to reach by car. The centre is roughly 31 kms (19 miles) away.

  • When travelling on public transport, expect a journey time of about 2 hours.

  • The last thing you need is a lengthy journey to your hotel if you're arriving on a late flight from Phoenix to Castries. Check in to one of these accommodation options near UVF instead:

  • Pick up a St Lucia Hewanorra Airport rental car and discover Castries and beyond with your own wheels. Drive A Matic, Sixt and Final Rentals are well-known companies to choose from here.

  • Lock in the best deal by booking your ride from St Lucia Hewanorra Airport around one week in advance of your trip.

St Lucia Vigie Airport (SLU)

  • St Lucia Vigie Airport (SLU) is around 2 kms (1 mile) from central Castries. Once you've disembarked your flight from Phoenix to Castries, it'll take you approximately 10 minutes to reach the heart of the city in a taxi or ride-share.

  • If you travel by public transport, you'll reach the centre in 15 minutes or so.

  • Hang up the 'Do not disturb' sign and unwind at a hotel close to SLU. Here are a few options where you can take a load off after your flight from Phoenix to Castries:

  • Drive A Matic, Final Rentals and Sixt make picking up a St Lucia Vigie Airport rental car quick and easy. These providers are located around or in the terminal and will have you on the road before long.

  • Get what you want, not just what's left over. Securing your ride from SLU one week ahead of time often means better prices and a bigger choice of vehicles.

Best time to go to Castries

  • December is the most popular month for flights from Phoenix to Castries. To skip the crowds, go to Castries in September.

  • The warmest month in Castries is September, with temperatures ranging between 26ºC and 30ºC. Lock in your Phoenix to Castries ticket then if that's your idea of comfortable weather.

  • Search for cheap flights from Phoenix to Castries in February if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 24ºC and 28ºC on average.

More about Castries

  • After booking your flight from Phoenix to Castries, find a hotel that offers the right mix of comfort and location. Make one of these accommodation options your base for exploring Castries:

  • All great adventures should include some sightseeing. Vigie Beach, Malabar Beach and Morne Fortune are must-do's during your Castries adventure.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.