TUS (Tucson) to IAD (Washington) Flights $369.8

Question : Will you do what it takes to get the absolute cheapest flight?
Answer : In August, Tuesday is your lowest-cost day to fly. Flexibility is paramount when booking travel plans in order to keep travel costs down.

Question : Over the coming months, which airline is getting their passengers to Washington Dulles International Airport (IAD) round-trip the cheapest?
Answer : United Airlines is the leader in keeping costs down for their passengers over the next three months. Fares are being booked at just $360 and, when compared to the more expensive bookings of $1,791, it's quite a deal.

Question : How long do most people stay in Dulles?
Answer : Of course you're not most people, but if you were, you'd stay roughly 10 days.

Question : Interested in traveling in the next 30 days and want to get the lowest fare?
Answer : As of Jul 17th, the cheapest day to fly from Tucson to Dulles is Aug 1st. Tickets are currently being sold for $360, which is 34% below the average price for this route.

Question : Is there another way to get to Dulles besides Washington Dulles International Airport (IAD)?
Answer : Luckily for you, there is another airport near Dulles. Ronald Reagan National Airport (DCA) is 23 miles away, and over the next two months flights are being booked 9% cheaper than flights to Washington Dulles International Airport.

Question : Is the price you found a good deal?
Answer : Prices for this trip tend to change more than other flights in the United States. They can range from $360 to $1,791. However, the sooner you book, the better price you tend to get.