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C$156 Cheap Flights from Phoenix Sky Harbor (PHX) to Washington Dulles (IAD)

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Flight deals from Phoenix Sky Harbor to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from Phoenix Sky Harbor Airport to Washington Dulles Airport? If you want to travel next month, return fares start from C$346. Find the lowest prices on one-way and return tickets right here.
Washington D.C..C$156 per passenger.Departing Mon., Aug. 10.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Mon., Aug. 10, arriving in Washington Dulles.Price includes taxes and charges.From C$156, select.
Washington D.C..C$157 per passenger.Departing Mon., Sep. 7.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Mon., Sep. 7, arriving in Washington Dulles.Price includes taxes and charges.From C$157, select.
Washington D.C..C$168 per passenger.Departing Tue., Sep. 29.One-way flight with United.Outbound direct flight with United departs from Phoenix Sky Harbor on Tue., Sep. 29, arriving in Washington Dulles.Price includes taxes and charges.From C$168, select.
Washington D.C..C$173 per passenger.Departing Wed., Jun. 24.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Wed., Jun. 24, arriving in Washington Dulles.Price includes taxes and charges.From C$173, select.
Washington D.C..C$175 per passenger.Departing Thu., Jul. 2.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Thu., Jul. 2, arriving in Washington Dulles.Price includes taxes and charges.From C$175, select.
Washington D.C..C$221 per passenger.Departing Tue., Oct. 20.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Phoenix Sky Harbor on Tue., Oct. 20, arriving in Washington Dulles.Price includes taxes and charges.From C$221, select.
Washington D.C..C$241 per passenger.Departing Tue., Nov. 24.One-way flight with Delta.Outbound indirect flight with Delta, departs from Phoenix Sky Harbor on Tue., Nov. 24, arriving in Washington Dulles.Price includes taxes and charges.From C$241, select.
Washington D.C..C$242 per passenger.Departing Fri., Jan. 15.One-way flight with Delta.Outbound indirect flight with Delta, departs from Phoenix Sky Harbor on Fri., Jan. 15, arriving in Washington Dulles.Price includes taxes and charges.From C$242, select.
Washington D.C..C$290 per passenger.Departing Sat., Oct. 17.One-way flight with United.Outbound direct flight with United departs from Phoenix Sky Harbor on Sat., Oct. 17, arriving in Washington Dulles.Price includes taxes and charges.From C$290, select.
Washington D.C..C$307 per passenger.Departing Wed., Mar. 24.One-way flight with United.Outbound direct flight with United departs from Phoenix Sky Harbor on Wed., Mar. 24, arriving in Washington Dulles.Price includes taxes and charges.From C$307, select.
Washington D.C..C$308 per passenger.Departing Fri., Aug. 14.One-way flight with United.Outbound direct flight with United departs from Phoenix Sky Harbor on Fri., Aug. 14, arriving in Washington Dulles.Price includes taxes and charges.From C$308, select.
Washington D.C..C$308 per passenger.Departing Thu., Jul. 9.One-way flight with United.Outbound direct flight with United departs from Phoenix Sky Harbor on Thu., Jul. 9, arriving in Washington Dulles.Price includes taxes and charges.From C$308, select.
Washington D.C..C$320 per passenger.Departing Wed., Dec. 23.One-way flight with Delta.Outbound indirect flight with Delta, departs from Phoenix Sky Harbor on Wed., Dec. 23, arriving in Washington Dulles.Price includes taxes and charges.From C$320, select.
Washington D.C..C$377 per passenger.Departing Thu., Dec. 31.One-way flight with United.Outbound direct flight with United departs from Phoenix Sky Harbor on Thu., Dec. 31, arriving in Washington Dulles.Price includes taxes and charges.From C$377, select.
Washington D.C..C$421 per passenger.Departing Thu., Jun. 25.One-way flight with United.Outbound direct flight with United departs from Phoenix Sky Harbor on Thu., Jun. 25, arriving in Washington Dulles.Price includes taxes and charges.From C$421, select.
Washington D.C..C$421 per passenger.Departing Tue., Nov. 24.One-way flight with United.Outbound direct flight with United departs from Phoenix Sky Harbor on Tue., Nov. 24, arriving in Washington Dulles.Price includes taxes and charges.From C$421, select.

Find the cheapest month to fly from Phoenix Sky Harbor to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phoenix Sky Harbor to Washington Dulles flights are currently cheapest in August.
Jun.
from C$173
Jul.
from C$175
Aug.
from C$156
Sep.
from C$157
Oct.
from C$221
Nov.
from C$241
Dec.
from C$320
Jan.
from C$242
Feb.
Find prices
Mar.
from C$307
Apr.
Find prices
May
Find prices

Which airlines fly from Phoenix Sky Harbor to Washington Dulles?

Phoenix Sky Harbor to Washington Dulles: Alternative routes

Compare routes from Phoenix Sky Harbor to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Washington Ronald Reagan

5km from central Washington D.C.
Closest
from C$174
Search flights

Camp Springs Andrews AFB

17km from central Washington D.C.
Search flights

Washington Dulles

37km from central Washington D.C.
from C$156
Search flights

Baltimore Washington International

44km from central Washington D.C.
Cheapest
from C$144
Search flights

Manassas

47km from central Washington D.C.
Search flights

Phoenix to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundC$156
Cheapest month to flyAugust
Average flight time4 hrs, 20 mins
Most popular airlineLufthansa
Average flights per week51

Finding cheap flights from Phoenix Sky Harbor to Washington Dulles: Frequently asked questions

The best price we found for a return flight from Phoenix Sky Harbor to Washington Dulles is C$230. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
4 hours and 20 minutes is the average flight time from Phoenix Sky Harbor to Washington Dulles.
Lufthansa, United and Avianca fly direct from Phoenix Sky Harbor to Washington Dulles.
As of June 2026, there are 51 flights per week flying from Phoenix Sky Harbor to Washington Dulles.
The cheapest month to fly from Phoenix Sky Harbor to Washington Dulles is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Phoenix Sky Harbor Airport to Washington Dulles Airport on Wednesday, August 19, 2026.
Yes – the average flight time is 4 hours and 20 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines and United offer the cheapest flight tickets to Washington Dulles.

Traveling from Phoenix Sky Harbor International Airport (PHX) to Washington Dulles International Airport (IAD): what you need to know

  • 4 hours 16 minutes is the average time for a direct flight from Phoenix Sky Harbor International Airport to Washington Dulles International Airport. Washington DC is 3 hours ahead of Phoenix and operates on the UTC-4 timezone.

  • Every week, there are 25 flights from Phoenix Sky Harbor International Airport to Washington Dulles International Airport. The earliest departure from PHX to IAD is at 00:13 and the latest is at 23:59.

  • Flying during a peak month like July? High seasons (like summer, Thanksgiving, Christmas and spring break) can add another hour at check-in and security. Play things extra safe and arrive up to four hours ahead of an international flight and two hours before domestic departures.

  • United Airlines is your ticket to exploring Washington DC (and perhaps some other exciting corners of United States!). Check out the direct flights from Phoenix Sky Harbor International Airport to Washington Dulles International Airport offered by this popular carrier.

  • If you want a stopover for your flight from Phoenix Sky Harbor International Airport to Washington Dulles International Airport, just deselect 'Direct flights only' and look through your options. These are the top stopovers between PHX and IAD:

    • Detroit Metropolitan Wayne County Airport

    • John Glenn Columbus International Airport

    • Denver International Airport

How to find the cheapest flights from Phoenix Sky Harbor International Airport (PHX) to Washington Dulles International Airport (IAD)

  • The best price we've found for a one-way ticket from Phoenix Sky Harbor International Airport to Washington Dulles International Airport is C$156. The cheapest price for a return flight is C$230. Keep in mind that fares can change due to availability at the time of booking.

  • To get cheap flight tickets from PHX to IAD, book your trip 9 months ahead of your departure.

  • May is the cheapest month for flight tickets from Phoenix Sky Harbor International Airport to Washington Dulles International Airport. If you need to travel during a different time of year, the 'Whole month' tool will show you the lowest airfares for every month.

  • Finding a cheap ticket from PHX to IAD is straightforward with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch as soon as there's a better deal.

  • Play around with filters to find the right trip for you. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Phoenix Sky Harbor International Airport to Washington Dulles International Airport, use the 'Sort by' tool. You can also filter results by airline, departure and arrival times, and number of stops.

Handy information about Phoenix Sky Harbor International Airport (PHX)

Arriving at Washington Dulles International Airport (IAD)

Getting from Washington Dulles International Airport (IAD) to central Washington DC

  • From Washington Dulles International Airport, Washington DC is approximately 56 kilometres away. It takes around 51 minutes to get to the center driving.

  • It typically takes 3 hours and 26 minutes if you're traveling by public transport.

When to fly to Washington Dulles International Airport (IAD)

  • The quietest month for a flight from Phoenix Sky Harbor International Airport to Washington Dulles International Airport is February, while July is the busiest. Pick the ideal time to go to Washington DC based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Lock in your flight from Phoenix Sky Harbor International Airport to Washington Dulles International Airport for July if you want to go to Washington DC during its warmest month. Expect temperatures of between 19ºC and 33ºC.

  • January has average temperatures of between -6ºC and 10ºC. Look for cheap flight tickets from PHX to IAD around that time if you like traveling in cooler conditions.

More about Washington DC

  • Start your Washington DC trip right by finding a great stay. Once you've booked your flight from PHX to IAD, browse our range of hotel options including:

  • White House Historical Association and The White House are just the start of the top attractions to add to your Washington DC to-do list. Continue your sightseeing adventures at National Mall.

Complete your Washington DC trip with hotels and a car rental

  • You've locked in your cheap ticket to Washington Dulles International Airport — now it's time to find a place to stay, and maybe even your own set of wheels. We've compared prices across hundreds of companies to bring you the best hotels and car rental deals in Washington DC.

Plan the rest of your trip from Phoenix to Washington D.C.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.