Cheap flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. from $100
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. departing on 7/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Southwest flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport
Our best Southwest deals on Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport
Our best United Airlines deals on Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?
In general, August is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $328. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of August, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $364.
What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?
Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $474. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport for around $744.
What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?
Flying to Washington, D.C. Dulles Intl Airport from Phoenix Sky Harbor Intl Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $434 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $784 on average. Flights to Washington, D.C. Dulles Intl Airport from Phoenix Sky Harbor Intl Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl flight route?
Fly from Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl for the best Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl flight prices
How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?
You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Phoenix Sky Harbor Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $393 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Phoenix Sky Harbor Intl Airport for as low as $287 on momondo.
What cabin class options are available on Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl flights?
There are 4 cabin classes available to choose from on Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport flights?
No. A direct flight is the cheapest option for a flight between Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport.
How have Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport flight prices changed over time?
As of June 2025, prices for Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 6% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl?
Frontier, Allegiant Air, and United Airlines are the most popular carriers operating from Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl
What airlines fly to Washington, D.C. Dulles Intl Airport?
United Airlines, Southwest and Delta are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Phoenix Sky Harbor Intl Airport according to our data. United Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 5 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport on average per day?
As of June 2025, there are 6 flights per day flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport. The most common time of day flights depart is 8:00AM, with 85% of flights taking off at noon.
How many flights depart from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport on average per week?
The number of flights available between Phoenix Sky Harbor Intl Airport and Washington, D.C. Dulles Intl Airport is 43 per week as of June 2025. The most frequent departure day is Tue, with 16% of weekly flights leaving on this day.
When to book flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport
Cheap Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport (PHX to IAD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport
How far is Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl by plane?
The distance between Phoenix Sky Harbor Intl and Washington, D.C. Dulles Intl is about 1950.3 mi. 4h 07m is a normal flight duration for this route.
When did momondo last update prices for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport?
Prices for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport were last updated today.
How many operators does momondo search for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport?
As of June 2025, there are 5 operators available to choose from for flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport is Boeing 737 MAX 8 (30.11% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (21.54%), Boeing 737-800 (15.97%), and Boeing 737-900 (15.97%).
What is the most popular airline from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for flights between Phoenix Sky Harbor Intl Airport and Washington, D.C. Dulles Intl Airport, the leading airline is United Airlines, making up 66% of the total bookings. Other popular airlines include Southwest with 22%, Delta with 6%, and Frontier with 6%.
Best airlines flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport
Compare and see reviews for airlines that fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $146 | Free Cancellation | Rating 5.9 3,301 reviews | |||
| PriceFrom $261 | Free Cancellation | Rating 8.0 4,280 reviews | |||
| PriceFrom $267 | Free Cancellation | Rating 7.4 8,810 reviews | |||
| PriceFrom $276 | Free Cancellation | Rating 8.0 7,964 reviews | |||
| PriceFrom $376 | Free Cancellation | Rating 7.2 10,000 reviews |
Southwest Flights From Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport
Across 4 Southwest flights from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport this week, the average price was $399, with the best Southwest deals starting from $261 round-trip. 4,280 users have rated Southwest on momondo, with an average score of 8.0/10.
United Airlines Flights From Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport
$267 is the best United Airlines flight deal from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $394, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 8,810 user reviews) flies into Washington, D.C. Dulles Intl Airport from Phoenix Sky Harbor Intl Airport 12 times in an average week so prices can vary.
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Why should I use momondo to find a flight deal from Phoenix to Washington, D.C.?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Phoenix to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Phoenix to Washington, D.C. with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Washington, D.C. from Phoenix with this policy.
How can momondo help me find flights from Phoenix to Washington, D.C.?
momondo provides multiple filters to help you find the best flight to Washington, D.C. from Phoenix. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Phoenix to Washington, D.C. right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Phoenix to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.