$164 Cheap Flights from Tucson (TUS) to Washington (IAD)

View $164 flight on Wed, Jun 17, 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 $164 for one-way flights and $327 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Jun 23 - Tue, Jun 30
TUS
Tucson
IAD
Washington
$327 Roundtrip, found 3 days ago
$327
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Jun 23 from Tucson to Washington, returning Tue, Jun 30, priced at $327 found 3 days ago
American Airlines
Tue, Jun 2 - Tue, Jun 9
TUS
Tucson
IAD
Washington
$332 Roundtrip, found 3 days ago
$332
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Jun 2 from Tucson to Washington, returning Tue, Jun 9, priced at $332 found 3 days ago
Delta
Tue, Jun 16 - Tue, Jun 23
TUS
Tucson
IAD
Washington
$337 Roundtrip, found 3 days ago
$337
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Jun 16 from Tucson to Washington, returning Tue, Jun 23, priced at $337 found 3 days ago
American Airlines
Sat, Jun 6 - Tue, Jun 9
TUS
Tucson
IAD
Washington
$341 Roundtrip, found 4 days ago
$341
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Jun 6 from Tucson to Washington, returning Tue, Jun 9, priced at $341 found 4 days ago
United
Tue, Aug 11 - Tue, Aug 18
TUS
Tucson
IAD
Washington
$342 Roundtrip, found 4 days ago
$342
Roundtrip
found 4 days ago
Select United flight, departing Tue, Aug 11 from Tucson to Washington, returning Tue, Aug 18, priced at $342 found 4 days ago
American Airlines
Thu, May 28 - Wed, Jun 3
TUS
Tucson
IAD
Washington
$346 Roundtrip, found 4 days ago
$346
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, May 28 from Tucson to Washington, returning Wed, Jun 3, priced at $346 found 4 days ago
United
Mon, Jun 1 - Wed, Jun 3
TUS
Tucson
IAD
Washington
$347 Roundtrip, found 4 days ago
$347
Roundtrip
found 4 days ago
Select United flight, departing Mon, Jun 1 from Tucson to Washington, returning Wed, Jun 3, priced at $347 found 4 days ago
Delta
Mon, Jun 1 - Wed, Jun 3
TUS
Tucson
IAD
Washington
$351 Roundtrip, found 4 days ago
$351
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Jun 1 from Tucson to Washington, returning Wed, Jun 3, priced at $351 found 4 days ago
Southwest Airlines
Mon, Jun 1 - Wed, Jun 3
TUS
Tucson
IAD
Washington
$368 Roundtrip, found 4 days ago
$368
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Mon, Jun 1 from Tucson to Washington, returning Wed, Jun 3, priced at $368 found 4 days ago
Alaska Airlines
Wed, Jun 3 - Sat, Jun 6
TUS
Tucson
IAD
Washington
$464 Roundtrip, found 3 days ago
$464
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jun 3 from Tucson to Washington, returning Sat, Jun 6, priced at $464 found 3 days ago

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 $1,022
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $1,022

Frequently asked questions

How much does a flight from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.) cost?
You can find cheap one-way flights and cheap return flights from $327 Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.) with Expedia. One-way flights usually range from $181 to $2055, and return flights typically cost between $428 and $1600. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
January is the cheapest month to fly from Tucson (TUS) to Washington, DC (IAD), with average round-trip fares around $384. This is about 18% lower than the average price throughout the year, as travel demand tends to decrease after the holiday season. Other affordable months to consider are August and September.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Enter TUS to IAD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
Frontier Airlines is one of the cheapest airlines offering connecting flights from Tucson Intl. (TUS) to Washington Dulles Intl. (IAD), with round-trip tickets starting from around $365. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best months to fly from Tucson, AZ (TUS) to Washington, DC (IAD) are January and September. You can expect return flights to average around $384, making these months both economical and enjoyable. January allows you to escape the heat, while September offers pleasant fall weather, perfect for exploring the nation's capital.*Prices based on flights available on Expedia in the last year.
What is the earliest flight from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Tucson (TUS) to Washington, DC (IAD) usually departs at around 12:55 AM, operated by United Airlines. This seasonal service is active in March, allowing you to start your day early and make the most of your time in the capital. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The most popular departure times for flights from Tucson Intl. (TUS) to Washington Dulles Intl. (IAD) are also in the early morning, from 6am to 9am. Many travelers prefer this timing because it helps them arrive in Washington with a full day ahead of them. About 50% of passengers choose this time, and you can find flights from United Airlines, American Airlines, and Delta Airlines during this period.
How long does it take to fly from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
A flight from TUS to IAD with a layover takes around 6 hours 50 minutes, with the route covering approximately 1,930 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You can fly first class between TUS and IAD. First class cabins are available on:

  • United Airlines
  • Delta Air Lines
  • American Airlines

How do I earn miles on a Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington from Tucson Intl. (TUS)?
From Tucson Intl. (TUS), you can fly into Ronald Reagan Washington National (DCA) and Washington Dulles Intl. (IAD) in Washington. Some flights may connect through major hubs like Denver Intl. (DEN), Harry Reid Intl. (LAS), Sky Harbor Intl. (PHX) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.) Fairfax County Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Tucson, AZ (TUS-Tucson Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Tucson Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$326
Distance
1929 mi

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 June. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $164 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

*Flight schedules are subject to change.

*Available to One Key members.

 

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