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

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

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

Prices were available within the past 7 days and start at $135 for one-way flights and $233 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Oct 28 - Thu, Oct 30
PHX
Phoenix
EWR
New York
$233 Roundtrip, found 1 day ago
$233
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Oct 28 from Phoenix to New York, returning Thu, Oct 30, priced at $233 found 1 day ago
Frontier Airlines
Fri, Sep 26 - Fri, Oct 3
PHX
Phoenix
EWR
New York
$269 Roundtrip, found 1 hour ago
$269
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Sep 26 from Phoenix to New York, returning Fri, Oct 3, priced at $269 found 1 hour ago
Flights from Phoenix (PHX) to Newark Liberty Intl. Airport (EWR)
Origin airport
Sky Harbor Intl.
Destination airport
Newark Liberty Intl. Airport
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Spirit Airlines, Sun Country Airlines, United
Popular airline
United
Distance
2127 mi
Average flight time
8 hours 53 mins

Frequently asked questions

How much is a Frontier Airlines flight from Sky Harbor Intl. Airport (PHX) to Liberty Intl. Airport (EWR)?
Scoring cheap one-way Frontier Airlines flights from PHX to EWR from $135 on Expedia is simple --- just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from $233 for your next adventure.**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 PHX to EWR with Frontier Airlines?
Look for one-way or round-trip flights to Newark in January or February. You could find cheaper fares with Frontier Airlines during these off-peak times.
What is the cheapest time to book flights from Sky Harbor Intl. Airport (PHX) to Liberty Intl. Airport (EWR) with Frontier Airlines?
Begin your search one to three months before your departure to get cheaper fares on Frontier Airlines flights from Sky Harbor Intl. Airport (PHX) to Liberty Intl. Airport (EWR). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing right, and you can enjoy significant savings on domestic trips.*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 Sky Harbor Intl. Airport (PHX) to Liberty Intl. Airport (EWR)?
Enter your dates, press search and use the "Nonstop" filter on Expedia to find any direct flights from PHX to EWR with Frontier Airlines or another carrier.
What is the earliest Frontier Airlines flight from PHX to EWR?
To find the earliest departures from PHX to EWR with Frontier Airlines, filter your results by "Morning" and "Early Morning." Booking an early flight usually means you're less likely to experience cancellations.**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 Newark?
Frontier Airlines flights from Sky Harbor Intl. Airport (PHX) to Newark land at Liberty Intl. Airport (EWR). This is the main entry point to this destination.
Why fly with Frontier Airlines from PHX to EWR?
With a rewarding loyalty program, Frontier Airlines is a popular choice for many travelers heading from PHX to EWR. Plus, if you're a Frontier Miles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of 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 Sky Harbor Intl. Airport (PHX) to Liberty Intl. Airport (EWR)?
Depending on the type of ticket you purchased, a fee may apply if you cancel or change your flight more than 24 hours after it's been confirmed. To secure tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when you look for flights. For additional information on canceling or modifying your reservation, go to "Trips," select your flight and click on "Manage Booking."

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*Available to One Key members.