Cheap flights from Washington to Philadelphia from $95 DCA, IAD → PHL

Found recently, and the cheapest we hold

It is also the cheapest return we hold, of any age.

What have prices looked like?

Over 11 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $261 to $574.

11 days is a short history, so treat this range as an early guide.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 3-night return fares leaving within 3 days of 1 Jan 2027 to compare.

Every date we hold

2 fares on 1 departure dates

Found recently, and the cheapest we hold

What have prices looked like?

Over 42 days, 24 Sept to 12 Nov, the cheapest one-way we saw each day was $47 to $183.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 23 Nov to compare.

Every date we hold

7 fares on 3 departure dates

Which month looks cheapest?

January 2027 is the cheapest month — from $76.

Return

Not enough history yet: in 11 days of return prices, 24 Sept to 12 Nov, fewer than 3 booking ranges had prices on 7 days or more.

One-way

Fares 60 to 89 days before departure were typically 6% lower than 14 to 29 days before departure.

From the cheapest one-way each day between 24 Sept and 12 Nov (42 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Washington to Philadelphia?

The cheapest return found recently is $306 with jetBlue, 1 Jan 2027 to 4 Jan 2027, found yesterday.

How much is a one-way flight from Washington to Philadelphia?

The cheapest one-way found recently is $95 with American Airlines, 23 Nov, found today. The cheapest one-way we hold, of any age, is $76 with Frontier Airlines, 5 Jan 2027, found 2 days ago. The cheapest one-way fare on each of 3 departure dates is usually $86 to $136.

What is the cheapest month to fly from Washington to Philadelphia?

January 2027 is the cheapest month for a one-way, from $76, 5 Jan 2027, found 2 days ago.

How far ahead should I book a flight from Washington to Philadelphia?

In 42 days of prices between 24 Sept and 12 Nov, one-way fares 60 to 89 days before departure were typically 6% lower than 14 to 29 days before departure.

Is there a direct flight from Washington to Philadelphia?

Yes, the cheapest nonstop return found recently is $412 with United Airlines, 1 Jan 2027 to 4 Jan 2027, found yesterday. The cheapest nonstop one-way found recently is $95 with American Airlines, 23 Nov, found today.

How long is the flight from Washington to Philadelphia?

The cheapest nonstop one-way found recently, with American Airlines on 23 Nov, takes 1 h 14 min from Ronald Reagan National Airport (DCA) to Philadelphia International Airport (PHL).

Which airlines have the cheapest flights from Washington to Philadelphia?

Between 23 Nov and 1 Apr 2027, American Airlines has the cheapest one-way on 1 of the 3 departure dates we hold, Frontier Airlines on 1 and jetBlue on 1.