$135 Cheap Frontier Airlines flights Newark Liberty Intl. Airport (EWR) to Phoenix (PHX)

View $135 flight on Fri, Oct 3, 2025Opens in a new window

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$135 Cheap Frontier Airlines flights Newark Liberty Intl. Airport (EWR) to Phoenix (PHX)

Prices were available within the past 7 days and start at $135 for one-way flights and $237 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Oct 3 - Sun, Oct 5
EWR
New York
PHX
Phoenix
$237 Roundtrip, just found
$237
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Oct 3 from New York to Phoenix, returning Sun, Oct 5, priced at $237 just found
Frontier Airlines
Fri, Sep 5 - Fri, Sep 12
EWR
New York
PHX
Phoenix
$240 Roundtrip, found 6 hours ago
$240
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Fri, Sep 5 from New York to Phoenix, returning Fri, Sep 12, priced at $240 found 6 hours ago
Frontier Airlines
Fri, Sep 19 - Thu, Sep 25
EWR
New York
PHX
Phoenix
$243 Roundtrip, just found
$243
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Sep 19 from New York to Phoenix, returning Thu, Sep 25, priced at $243 just found
Frontier Airlines
Mon, Sep 22 - Sat, Oct 4
EWR
New York
PHX
Phoenix
$260 Roundtrip, found 3 days ago
$260
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Mon, Sep 22 from New York to Phoenix, returning Sat, Oct 4, priced at $260 found 3 days ago
Flights from Newark Liberty Intl. Airport (EWR) to Phoenix (PHX)
Origin airport
Newark Liberty Intl. Airport
Destination airport
Sky Harbor Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Spirit Airlines, Sun Country Airlines, United
Popular airline
United
Distance
2127 mi
Average flight time
4 hours 3 mins

Frequently asked questions

How much is a Frontier Airlines flight from Liberty Intl. Airport (EWR) to Sky Harbor Intl. Airport (PHX)?
You can discover budget-friendly return Frontier Airlines flights from $237 from EWR to PHX by sorting your results from "Price (lowest to highest)" on Expedia. Or look for deals from $135 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from EWR to PHX with Frontier Airlines?
July is one of the cheapest months to travel to Phoenix with Frontier Airlines. You could also find great prices on return and one-way tickets in August.
What is the cheapest time to book flights from Liberty Intl. Airport (EWR) to Sky Harbor Intl. Airport (PHX) with Frontier Airlines?
For cheap Frontier Airlines fares from Liberty Intl. Airport (EWR) to Sky Harbor Intl. Airport (PHX), start searching one to three months before your planned departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the price you pay. Sunday is typically the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Frontier Airlines fly nonstop from Liberty Intl. Airport (EWR) to Sky Harbor Intl. Airport (PHX)?
Click on our "Nonstop" filter when browsing for direct Frontier Airlines flights from EWR to PHX. It's also a good way to compare other airlines servicing the same nonstop journey.
What is the earliest Frontier Airlines flight from EWR to PHX?
Sort your results by "Morning" and "Early Morning" to find the earliest flights from EWR to PHX. Taking off early means flight cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Frontier Airlines fly into in Phoenix?
Frontier Airlines flights from Liberty Intl. Airport (EWR) to Phoenix come in to Sky Harbor Intl. Airport (PHX). This is the main entry point to this destination.
Why fly with Frontier Airlines from EWR to PHX?
Offering a rewarding loyalty program, Frontier Airlines is a top pick for many passengers departing from EWR to PHX. Plus, if you're a Frontier Miles and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Frontier Airlines flight from Liberty Intl. Airport (EWR) to Sky Harbor Intl. Airport (PHX)?
You can usually cancel or change your flight, although additional charges may apply if you made your booking more than 24 hours ago. Prefer to keep your options open? Use Expedia's "Changes included" and "No cancel fee" filters to find flights that won't charge you extra if you need to adjust your plans. To update your itinerary, head to "Trips," select your flight and click on "Manage Booking" for more information.

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*Available to One Key members.