Question 1

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Question 2

What airlines fly to Washington, D.C. Dulles Intl Airport?

Accepted Answer

United Airlines, Southwest and Frontier are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Phoenix according to our data. United Airlines is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 4 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.

Question 3

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

Accepted Answer

In general, August is the cheapest month to fly from Phoenix 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 $299. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of August, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $350.

Question 4

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

Accepted Answer

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Phoenix 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 $395 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 for as low as $286 on momondo.

Question 5

How often are flights from Phoenix to Washington, D.C. delayed?

Accepted Answer

Historically, on average around 10% of flights between Phoenix and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 130 minutes.

Question 6

Which airline has the best punctuality record on Phoenix to Washington, D.C. flights?

Accepted Answer

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

Question 7

How many flights depart from Phoenix to Washington, D.C. Dulles Intl Airport on average per week?

Accepted Answer

As of December 2025, there are 45 flights per week flying from Phoenix to Washington, D.C. Dulles Intl Airport. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.

Question 8

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Accepted Answer

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 $485. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Phoenix to Washington, D.C. Dulles Intl Airport for around $770.

Question 9

What cabin class options are available on Phoenix to Washington, D.C. Dulles Intl flights?

Accepted Answer

There are 4 cabin classes available to choose from on Phoenix 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.

Question 10

What is the most punctual flight time for Phoenix to Washington, D.C. flights?

Accepted Answer

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Question 11

What is the cheapest airline that flies from Phoenix to Washington, D.C. Dulles Intl?

Accepted Answer

Alaska Airlines, Southwest, and United Airlines are the most popular carriers operating from Phoenix to Washington, D.C. Dulles Intl

Question 12

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Flying to Washington, D.C. Dulles Intl Airport from Phoenix in the evening is the least expensive time of day to depart. momondo users have found prices as low as $455 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 $768 on average. Flights to Washington, D.C. Dulles Intl Airport from Phoenix at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Question 13

How many flights depart from Phoenix to Washington, D.C. Dulles Intl Airport on average per day?

Accepted Answer

As of December 2025, 6 flights take off from Phoenix and land in Washington, D.C. Dulles Intl Airport each day. The most common flight departure time for this route is 8:00AM, with 63% of daily flights taking off at noon.

Question 14

What is the cheapest Phoenix to Washington, D.C. Dulles Intl flight route?

Accepted Answer

Fly from Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl for the best Phoenix - Washington, D.C. Dulles Intl flight prices

Question 15

When did momondo last update prices for flights from Phoenix to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Prices for flights from Phoenix to Washington, D.C. Dulles Intl Airport are updated daily.

Question 16

How many operators does momondo search for flights from Phoenix to Washington, D.C. Dulles Intl Airport?

Accepted Answer

There are 4 operators available for flights from Phoenix to Washington, D.C. Dulles Intl Airport as of December 2025.

Question 17

How old do you have to be to fly from Phoenix to Washington, D.C. Dulles Intl Airport?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Phoenix to Washington, D.C. Dulles Intl Airport.

Question 18

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

Accepted Answer

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.

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Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $146	Free Cancellation	Rating 5.8 3,089 reviews	Search Frontier flights
Delta	PriceFrom $188	Free Cancellation	Rating 7.9 8,013 reviews	Search Delta flights
Southwest	PriceFrom $234	Free Cancellation	Rating 8.0 4,253 reviews	Search Southwest flights
United Airlines	PriceFrom $264	Free Cancellation	Rating 7.4 9,076 reviews	Search United Airlines flights

Cheap flights from Phoenix to Washington, D.C. from $131

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 to Washington, D.C. departing on 1/15. 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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How to get the cheapest flight ticket from Phoenix to Washington, D.C. Dulles Intl Airport

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What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

What is the cheapest Phoenix to Washington, D.C. Dulles Intl flight route?

Fly from Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl for the best Phoenix - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

What cabin class options are available on Phoenix to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on Phoenix 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.

What is the cheapest airline that flies from Phoenix to Washington, D.C. Dulles Intl?

Alaska Airlines, Southwest, and United Airlines are the most popular carriers operating from Phoenix to Washington, D.C. Dulles Intl

What airlines fly to Washington, D.C. Dulles Intl Airport?

How often are flights from Phoenix to Washington, D.C. delayed?

Historically, on average around 10% of flights between Phoenix and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 130 minutes.

What is the most punctual flight time for Phoenix to Washington, D.C. flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Phoenix to Washington, D.C. flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

How many flights depart from Phoenix to Washington, D.C. Dulles Intl Airport on average per day?

As of December 2025, 6 flights take off from Phoenix and land in Washington, D.C. Dulles Intl Airport each day. The most common flight departure time for this route is 8:00AM, with 63% of daily flights taking off at noon.

How many flights depart from Phoenix to Washington, D.C. Dulles Intl Airport on average per week?

As of December 2025, there are 45 flights per week flying from Phoenix to Washington, D.C. Dulles Intl Airport. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.

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When did momondo last update prices for flights from Phoenix to Washington, D.C. Dulles Intl Airport?

How many operators does momondo search for flights from Phoenix to Washington, D.C. Dulles Intl Airport?

How old do you have to be to fly from Phoenix to Washington, D.C. Dulles Intl Airport?

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Phoenix to Washington, D.C. Dulles Intl Airport

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