Cheap flights from Phoenix to Washington

One-way fares from $139 · PHX → WAS · prices found by travellers in the last 48 hours

Compare all dates Washington → Phoenix
Cheapest fare
$139

Frontier Airlines · Thu, Dec 31

Cheapest month
December

from $139

Direct flights
Not recently

Usually 1+ stop

Quickest trip
5h 11m

3,180 km

Get a price alert

We'll email you when Phoenix → Washington drops to your price. It's free, and you can stop any time.

Today's cheapest fare is $139. We'll send one email to confirm. See our privacy policy.

Cheapest month to fly from Phoenix to Washington

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $231
  2. December 2026 Cheapest $139
  3. January 2027 $156

Cheapest dates in December 2026

The lowest fares we've seen for each day, cheapest first.

Frontier Airlines
Depart10:48 Thu, Dec 31PHX → DCA 5h 15m · 1 stop
$139one way, per person
View deal
See every date in December 2026 →

Plan the rest of your trip to Washington

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in WashingtonCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in WashingtonTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in WashingtonPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in WashingtonCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Phoenix to Washington

Phoenix (PHX) and Washington (WAS) are about 3,180 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 5h 11m. Over the next few months, one-way fares start from $139, and December 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Phoenix to Washington?

The cheapest one-way fare we've seen recently is $139 with Frontier Airlines, departing Thursday, December 31, 2026. Over the coming months, the lowest fare in each month ranges from $139 to $231.

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

December 2026 currently has the lowest fares, from $139 one way.

Are there direct flights from Phoenix to Washington?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Phoenix to Washington?

The quickest journey we've seen takes about 5h 11m. Phoenix and Washington are around 3,180 km apart.

Which airlines fly from Phoenix to Washington?

Recent fares on this route were with Frontier Airlines.

More cheap flights from Phoenix

Compare flights to Washington from other cities →