$145 Find Cheap Flights from Philadelphia to Washington - Compare and Save

The cheapest ticket to Washington from Philadelphia found in the last 5 days was to Seattle, at $329 round-trip. The most popular route is from Philadelphia (PHL) to Seattle (SEA), and the cheapest round-trip airline ticket found on this route in the last 5 days was $329.

The cheapest time of day to fly to Washington is generally at night, when round-trip flights cost $460 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Washington is generally in the evening, which is peak travel time and where the average cost of a ticket is $467.

No, with an average price for the route of $447, prices are generally cheapest when you fly direct.

The cheapest month for flights from Philadelphia to Washington is January, when tickets cost $336 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $477 and $467 respectively.

If your flying dates are flexible, you should consider flying to Washington on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Philadelphia to Washington. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

To get a below average price on the flight from Philadelphia to Washington, you should book around 4 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

There are 4 airlines that fly nonstop from Philadelphia to Washington. They are: American Airlines, Alaska Airlines, Delta and Hawaiian Airlines. The cheapest price of all airlines flying this route was found with Hawaiian Airlines at $138 for a round-trip flight to Seattle (SEA). On average, Hawaiian Airlines offers the best prices for nonstop flights between Philadelphia and Washington.

Philadelphia and Washington are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (22 flights per week), American Airlines (21 flights per week), and STARLUX Airlines (15 flights per week).

The duration of a flight to Washington depends on your arrival airport. The shortest routes to Washington from Philadelphia are to Seattle, which takes 5h 51m, Spokane, which takes 7h 10m, and Pasco, which takes 7h 40m.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

The earliest flight from Philadelphia to Washington departs at 7:02 am, landing in Seattle at 9:53 am.

If you prefer to fly at night, the latest flight from Philadelphia to Washington jets off at 7:35 pm and lands in Seattle at 10:56 pm.