$133 Cheap Flights from Tucson (TUS) to Washington (IAD)

View $133 flight on Wed, Jan 21, 2026Opens 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 $133 for one-way flights and $291 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Oct 18 - Sun, Nov 2
TUS
Tucson
IAD
Washington
$291 Roundtrip, found 4 days ago
$291
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Oct 18 from Tucson to Washington, returning Sun, Nov 2, priced at $291 found 4 days ago
Southwest Airlines
Tue, Oct 28 - Thu, Nov 6
TUS
Tucson
IAD
Washington
$298 Roundtrip, found 5 days ago
$298
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Tue, Oct 28 from Tucson to Washington, returning Thu, Nov 6, priced at $298 found 5 days ago
United
Thu, Dec 11 - Mon, Dec 15
TUS
Tucson
IAD
Washington
$302 Roundtrip, found 5 days ago
$302
Roundtrip
found 5 days ago
Select United flight, departing Thu, Dec 11 from Tucson to Washington, returning Mon, Dec 15, priced at $302 found 5 days ago
American Airlines
Thu, Nov 13 - Sun, Nov 16
TUS
Tucson
IAD
Washington
$306 Roundtrip, found 5 days ago
$306
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Nov 13 from Tucson to Washington, returning Sun, Nov 16, priced at $306 found 5 days ago
Hawaiian Airlines
Wed, Oct 15 - Fri, Oct 24
TUS
Tucson
IAD
Washington
$313 Roundtrip, found 4 days ago
$313
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Wed, Oct 15 from Tucson to Washington, returning Fri, Oct 24, priced at $313 found 4 days ago
Alaska Airlines
Thu, Nov 13 - Tue, Nov 18
TUS
Tucson
IAD
Washington
$350 Roundtrip, found 1 day ago
$350
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Nov 13 from Tucson to Washington, returning Tue, Nov 18, priced at $350 found 1 day ago
American Airlines
Tue, Dec 16 - Sat, Jan 10
TUS
Tucson
IAD
Washington
$351 Roundtrip, found 3 hours ago
$351
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Tue, Dec 16 from Tucson to Washington, returning Sat, Jan 10, priced at $351 found 3 hours ago
Southwest Airlines
Sat, Oct 18 - Mon, Oct 20
TUS
Tucson
IAD
Washington
$353 Roundtrip, found 3 days ago
$353
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Sat, Oct 18 from Tucson to Washington, returning Mon, Oct 20, priced at $353 found 3 days ago
American Airlines
Wed, Oct 15 - Tue, Oct 21
TUS
Tucson
IAD
Washington
$356 Roundtrip, found 4 hours ago
$356
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Oct 15 from Tucson to Washington, returning Tue, Oct 21, priced at $356 found 4 hours ago
United
Wed, Dec 10 - Sat, Dec 13
TUS
Tucson
IAD
Washington
$359 Roundtrip, found 11 hours ago
$359
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Dec 10 from Tucson to Washington, returning Sat, Dec 13, priced at $359 found 11 hours ago

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

September is typically the cheapest month to fly

From $234 - $1,095 per traveler.

Frequently asked questions

How much does a flight from Tucson Intl. Airport (TUS) to Washington Dulles Intl. Airport (IAD) cost?
Get a cheap one-way flight from $133 or cheap return flight from $291 from Tucson Intl. Airport (TUS) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Tucson Intl. Airport (TUS) to Washington Dulles Intl. Airport (IAD)?
October is the most affordable month to fly from TUS to IAD. Planning your trip for the off-season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Tucson Intl. Airport (TUS) to Washington Dulles Intl. Airport (IAD)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest TUS to IAD flight.
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.

Travel information

Travel information

Origin airport
Tucson Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$290
Distance
1929 mi

Book with confidence

Book with confidence

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 October. 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 $133 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.

 

Tucson to Washington Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.