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Find cheap Delta flights to Philadelphia

RDU — PHL
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Find Delta flight deals to Philadelphia

Cheapest Delta flights from USA to Philadelphia
Explore the most affordable Delta flight options available from USA to Philadelphia. Find the lowest fares with prices last updated on July 27, 2026.

This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:15 am
ATL
-
PHL
Nonstop2h 09m
Delta
Sun 8/165:15 am
PHL
-
ATL
Nonstop2h 04m
Delta
Deal found 7/25$129
This Delta deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:05 pm
ATL
-
PHL
Nonstop2h 14m
Delta
Sun 8/305:15 am
PHL
-
ATL
Nonstop2h 04m
Delta
Deal found 7/23$134
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1411:05 pm
ATL
-
PHL
Nonstop2h 14m
Delta
Thu 8/206:15 am
PHL
-
ATL
Nonstop2h 00m
Delta
Deal found 7/25$139

Flights to Philadelphia with Delta at a glance

Find detailed information about Delta flights from USA to Philadelphia. Explore the options provided by Delta to plan your journey from USA to Philadelphia. Data last updated July 27, 2026.

Popular in

March

Cheapest in

January

Average price

$346

Round-trip from

$129

One-way from

$79

Good one-way deal

$473 or less
Highest demand for flights to Philadelphia with Delta; 2% potential price increase.
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Best time to find cheap flights to Philadelphia with Delta; 1% potential price drop.
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Average price for flights to Philadelphia with Delta (round-trip).
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Delta
  • Delta
  • 8/15-8/16
  • Nonstop
  • 4h 18m total
  • USA to Philadelphia
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Delta
  • Delta
  • 11/23
  • Nonstop
  • 1h 59m total
  • USA to Philadelphia
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Price to beat on a one-way flight from the United States to Philadelphia with Delta.
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Cheapflights Insights

Find cheap Delta flights to Philadelphia

How long is the flight to Philadelphia with Delta?

On average, Delta flights from the United States to Philadelphia take 2 hours 43 minutes. Flights to Philadelphia from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.

Delta weekly flight availability to Philadelphia

The most flights to Philadelphia operated by Delta are scheduled on a Sunday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 on average).

When is the best time to book a flight to Philadelphia with Delta?

The best time to book a flight to Philadelphia with Delta is 87 days before departure. On average, fares are higher if you book 3 days before departure.

When is the cheapest time to fly to Philadelphia with Delta?

Users looking for the cheapest Delta fares to Philadelphia should consider flying on Friday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Monday at noon, when prices are usually at their highest.

FAQs about flights to Philadelphia with Delta

  • Which airport do Delta flights arrive at when travelling to Philadelphia?

    Delta flights on this route tend to land at Philadelphia Airport.

  • Is Delta the cheapest airline for a flight to Philadelphia?

    Flight prices will depend on many factors like date, time and cabin class so it is worth comparing flights before booking. Based on Cheapflights data the cheapest average return price for flights to Philadelphia tends to be with Avelo Airlines.

  • Are there alternative airlines other than Delta that fly to Philadelphia?

    American Airlines, Frontier and United Airlines all fly to Philadelphia and offer an alternative to Delta.

  • How much is a flight to Philadelphia with Delta?

    The average price for a return flight with Delta is $420; with a one-way flight around $333.

See more FAQs

Reviews of Delta

See what Cheapflights users have to say about their Delta experience.
Delta
7.8
Good
8,485 reviews
Overview

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.2

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