$125 Cheap Flights from Washington (IAD) to Tucson (TUS)

View $125 flight on Wed, Nov 19, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Tucson International Airport (TUS)

Cheap Flights from Washington to Tucson (IAD-TUS)

Prices were available within the past 7 days and start at $125 for one-way flights and $251 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Dec 31 - Wed, Jan 7
IAD
Washington
TUS
Tucson
$251 Roundtrip, found 4 days ago
$251
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 31 from Washington to Tucson, returning Wed, Jan 7, priced at $251 found 4 days ago
United
Wed, Nov 5 - Tue, Nov 11
IAD
Washington
TUS
Tucson
$251 Roundtrip, found 5 days ago
$251
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 5 from Washington to Tucson, returning Tue, Nov 11, priced at $251 found 5 days ago
Delta
Wed, Nov 5 - Tue, Nov 11
IAD
Washington
TUS
Tucson
$257 Roundtrip, found 5 days ago
$257
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Nov 5 from Washington to Tucson, returning Tue, Nov 11, priced at $257 found 5 days ago
Southwest Airlines
Wed, Nov 5 - Tue, Nov 11
IAD
Washington
TUS
Tucson
$275 Roundtrip, found 5 days ago
$275
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Wed, Nov 5 from Washington to Tucson, returning Tue, Nov 11, priced at $275 found 5 days ago
United
Wed, Nov 5 - Tue, Nov 11
IAD
Washington
TUS
Tucson
$278 Roundtrip, found 5 days ago
$278
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 5 from Washington to Tucson, returning Tue, Nov 11, priced at $278 found 5 days ago
United
Wed, Nov 5 - Tue, Nov 11
IAD
Washington
TUS
Tucson
$280 Roundtrip, found 5 days ago
$280
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 5 from Washington to Tucson, returning Tue, Nov 11, priced at $280 found 5 days ago
United
Wed, Nov 5 - Tue, Nov 11
IAD
Washington
TUS
Tucson
$285 Roundtrip, found 5 days ago
$285
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 5 from Washington to Tucson, returning Tue, Nov 11, priced at $285 found 5 days ago
United
Wed, Nov 5 - Tue, Nov 11
IAD
Washington
TUS
Tucson
$291 Roundtrip, found 5 days ago
$291
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 5 from Washington to Tucson, returning Tue, Nov 11, priced at $291 found 5 days ago
American Airlines
Wed, Dec 31 - Wed, Jan 7
IAD
Washington
TUS
Tucson
$294 Roundtrip, found 4 days ago
$294
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 31 from Washington to Tucson, returning Wed, Jan 7, priced at $294 found 4 days ago
Alaska Airlines
Sat, Nov 15 - Wed, Nov 19
IAD
Washington
TUS
Tucson
$309 Roundtrip, found 5 days ago
$309
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Nov 15 from Washington to Tucson, returning Wed, Nov 19, priced at $309 found 5 days ago

Find the cheapest month to fly from Washington (IAD) to Tucson (TUS)

August is typically the cheapest month to fly

From $226 - $1,223 per traveler.

Graph displaying average flight prices per month

Alternative airports near Tucson

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Tucson Intl. TUS. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $469
TUS
Tucson Intl.
CheapestClosest
Average driving time to city center14 min
Flights from $469
Flights from Washington (IAD) to Tucson (TUS)
Origin airport
Washington Dulles Intl.
Destination airport
Tucson Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$250
Distance
1929 mi

Washington to Tucson Flights

The cheapest times to fly from Washington to Tucson

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Tucson are during the month of December. You can find some of the cheapest flights from Washington to Tucson with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Tucson

Sunday is one of the best days to book for cheap flights from Washington to Tucson: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Tucson

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Tucson in 2025. You can also book with separate airlines for your outbound and return journeys, from $125 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Tucson flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Tucson airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Tucson Intl. Airport (TUS) cost?
Snag a cheap one-way flight from $125 or cheap return flight from $251 from Washington Dulles Intl. Airport (IAD) to Tucson Intl. Airport (TUS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Tucson Intl. Airport (TUS)?
December is the cheapest month to fly from IAD to TUS. Traveling during quieter months is often the key to landing a great deal.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Tucson Intl. Airport (TUS)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from IAD to TUS. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Tucson Intl. Airport (TUS)?
Direct flights from Washington Dulles Intl. Airport (IAD) to Tucson Intl. Airport (TUS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to TUS?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Tucson Intl. Airport (TUS)?
To avoid possible delays on the Washington Dulles Intl. Airport (IAD) to Tucson Intl. Airport (TUS) route, travel before 3 PM. Later flights are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Tucson Intl. Airport (TUS) last-minute?
Holding off until just before your departure to book your flight from IAD to TUS often results in higher prices. While you might find some last-minute offers, there's no guarantee. Allow some flexibility in your schedule for the best chance of getting a bargain.
Is it cheaper to book an IAD to TUS flight and hotel package?
You'll typically save money by securing an IAD to TUS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After choosing your preferred flights and accommodations, consider adding extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Tucson Intl. Airport (TUS)?
In most instances, you're able to reschedule or cancel your IAD to TUS flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want more information, visit our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.