$153 Cheap Flights from Tucson (TUS) to Washington (IAD)

View $153 flight on Thu, Sep 25, 2025Opens in a new window

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

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Cheap Flights from Tucson to Washington (TUS-IAD)

Prices were available within the past 7 days and start at $153 for one-way flights and $302 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Sep 9 - Tue, Sep 23
TUS
Tucson
IAD
Washington
$302 Roundtrip, found 5 days ago
$302
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 9 from Tucson to Washington, returning Tue, Sep 23, priced at $302 found 5 days ago
Southwest Airlines
Tue, Sep 9 - Tue, Sep 23
TUS
Tucson
IAD
Washington
$304 Roundtrip, found 5 days ago
$304
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Tue, Sep 9 from Tucson to Washington, returning Tue, Sep 23, priced at $304 found 5 days ago
Alaska Airlines
Tue, Sep 9 - Tue, Sep 23
TUS
Tucson
IAD
Washington
$306 Roundtrip, found 5 days ago
$306
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Sep 9 from Tucson to Washington, returning Tue, Sep 23, priced at $306 found 5 days ago
Delta
Thu, Oct 2 - Mon, Oct 6
TUS
Tucson
IAD
Washington
$307 Roundtrip, found 4 days ago
$307
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Oct 2 from Tucson to Washington, returning Mon, Oct 6, priced at $307 found 4 days ago
Southwest Airlines
Tue, Sep 9 - Tue, Sep 23
TUS
Tucson
IAD
Washington
$307 Roundtrip, found 5 days ago
$307
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Tue, Sep 9 from Tucson to Washington, returning Tue, Sep 23, priced at $307 found 5 days ago
American Airlines
Tue, Sep 9 - Thu, Sep 11
TUS
Tucson
IAD
Washington
$307 Roundtrip, found 4 days ago
$307
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Sep 9 from Tucson to Washington, returning Thu, Sep 11, priced at $307 found 4 days ago
Southwest Airlines
Tue, Sep 9 - Thu, Sep 11
TUS
Tucson
IAD
Washington
$309 Roundtrip, found 4 days ago
$309
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Tue, Sep 9 from Tucson to Washington, returning Thu, Sep 11, priced at $309 found 4 days ago
Alaska Airlines
Tue, Sep 9 - Thu, Sep 11
TUS
Tucson
IAD
Washington
$310 Roundtrip, found 4 days ago
$310
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, Sep 9 from Tucson to Washington, returning Thu, Sep 11, priced at $310 found 4 days ago
Southwest Airlines
Tue, Sep 9 - Thu, Sep 11
TUS
Tucson
IAD
Washington
$314 Roundtrip, found 4 days ago
$314
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Tue, Sep 9 from Tucson to Washington, returning Thu, Sep 11, priced at $314 found 4 days ago
Frontier Airlines
Sun, Aug 3 - Thu, Aug 21
TUS
Tucson
IAD
Washington
$318 Roundtrip, found 13 hours ago
$318
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Sun, Aug 3 from Tucson to Washington, returning Thu, Aug 21, priced at $318 found 13 hours ago

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

August is typically the cheapest month to fly

From $251 - $1,127 per traveler.

Graph displaying average flight prices per month

Alternative airports near Washington

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

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $461
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $461
Flights from Tucson (TUS) to Washington (IAD)
Origin airport
Tucson Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$302
Distance
1929 mi

Tucson to Washington Flights

The cheapest times to fly from Tucson to Washington

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 Tucson to Washington are during the month of September. You can find some of the cheapest flights from Tucson to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Tucson to Washington

Sunday is one of the best days to book for cheap flights from Tucson to Washington: 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 Tucson to Washington

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 Tucson to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $153 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 Tucson to Washington 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 Tucson to Washington 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 Tucson Intl. Airport (TUS) to Washington Dulles Intl. Airport (IAD) cost?
Discover the latest flight deals from TUS to IAD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from TUS to IAD?
The cheapest flights from TUS to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from TUS to IAD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from TUS to IAD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Tucson Intl. Airport (TUS) to Washington Dulles Intl. Airport (IAD)?
There are no daily nonstop flights from Tucson Intl. Airport (TUS) to Washington Dulles Intl. Airport (IAD). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way before you know it.
What day of the week has the most flights from TUS to IAD?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Tucson Intl. Airport (TUS) to Washington Dulles Intl. Airport (IAD)?
To touch down at Washington Dulles Intl. Airport (IAD) without delays, choose a flight that takes off from Tucson Intl. Airport (TUS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Tucson Intl. Airport (TUS) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute bookings from TUS to IAD are generally more expensive. To secure the lowest prices, start searching for flights as soon as possible. That being said, if you're flexible with your travel plans, you may score a cheap ticket right before your journey.
Is it cheaper to book a TUS to IAD flight and hotel package?
Compared with arranging flights and hotels separately, booking a TUS to IAD flight and hotel package with Expedia could result in significant savings. Better still, managing everything in one place will take the stress out of travel planning. Simply pick your flights and choose from our wide range of stays, then tailor your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Tucson Intl. Airport (TUS) to Washington Dulles Intl. Airport (IAD)?
If you booked your TUS to IAD flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

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*Available to One Key members.