$627 Cheap Flights from Phoenix (PHX) to Londonderry (LDY)

View $627 flight on Tue, Feb 3, 2026Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Londonderry (LDY-City of Derry)

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Cheap Flights from Phoenix to Londonderry (PHX-LDY)

Prices were available within the past 7 days and start at $627 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to City of Derry Airport (LDY) cost?
Lock in a cheap one-way flight from $627 or cheap return flight from Sky Harbor Intl. Airport (PHX) to City of Derry Airport (LDY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Sky Harbor Intl. Airport (PHX) to City of Derry Airport (LDY)?
Planning your getaway for is a good way to save, as it's the cheapest month for flights between PHX and LDY. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Sky Harbor Intl. Airport (PHX) to City of Derry Airport (LDY)?
To find the cheapest airline flying from PHX to LDY, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Sky Harbor Intl. Airport (PHX) to City of Derry Airport (LDY)?
Nonstop flights from Sky Harbor Intl. Airport (PHX) to City of Derry Airport (LDY) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PHX to LDY?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to City of Derry Airport (LDY)?
Opt for a flight from Sky Harbor Intl. Airport (PHX) to City of Derry Airport (LDY) that takes off before 3 PM to reduce the likelihood of delays. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Sky Harbor Intl. Airport (PHX) to City of Derry Airport (LDY) last-minute?
Booking your plane ticket from PHX to LDY right before your trip is generally more expensive. However, if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a PHX to LDY flight and hotel package?
You can save money by securing a PHX to LDY flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've chosen your preferred accommodations and flights, consider adding extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to City of Derry Airport (LDY)?
You can usually reschedule or cancel your PHX to LDY flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
City of Derry
Distance
4890 mi

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Phoenix to Londonderry Flights

The cheapest times to fly from Phoenix to Londonderry

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Phoenix to Londonderry are during the month of . You can find some of the cheapest flights from Phoenix to Londonderry with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to Londonderry

Sunday is one of the best days to book for cheap flights from Phoenix to Londonderry: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Phoenix to Londonderry

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Phoenix to Londonderry in 2025. You can also book with separate airlines for your outbound and return journeys, from $627 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Phoenix to Londonderry flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Phoenix to Londonderry airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Phoenix to Londonderry Flights

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*Available to One Key members.