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Dulles Intl

$126+ Cheap flights from Tucson (TUS) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — IAD
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheapflights Tip: The best prices from Tucson to Washington, D.C. Dulles Intl are usually found in February or March, booked 68 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Tucson to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Tucson (TUS) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 21, 2025.

Round-trip from

$306
(Alaska Airlines)

One-way from

$126
(American Airlines)

Popular in

November

Cheapest in

February

Average price

$423
From Tucson to Washington, D.C. Dulles Intl
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One-way flight from Tucson to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 16% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Tucson to Dulles Intl

Cheapest flights from Tucson to Dulles Intl
Explore the most affordable flight options available from Tucson to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:35 pmTUS - IAD
1 stop11h 48mAlaska Airlines
Tue 11/187:43 amIAD - TUS
1 stop9h 56mAlaska Airlines
Deal found 8/19$306
This American Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/291:32 pmTUS - IAD
1 stop6h 19mAmerican Airlines
Sat 11/15:37 pmIAD - TUS
1 stop7h 45mAmerican Airlines
Deal found 8/21$307
This Hawaiian Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/144:35 pmTUS - IAD
1 stop11h 48mHawaiian Airlines
Tue 11/187:43 amIAD - TUS
1 stop9h 56mHawaiian Airlines
Deal found 8/21$324
This American Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1412:33 pmTUS - IAD
1 stop8h 00mAmerican Airlines
Tue 11/182:16 pmIAD - TUS
2 stops10h 34mAmerican Airlines
Deal found 8/21$330
This Alaska Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1012:17 pmTUS - IAD
1 stop9h 06mAlaska Airlines
Tue 9/166:09 pmIAD - TUS
1 stop20h 12mAlaska Airlines
Deal found 8/20$336
This Delta deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:00 amTUS - IAD
2 stops13h 25mDelta
Tue 9/163:31 pmIAD - TUS
1 stop9h 05mDelta
Deal found 8/20$342
This United Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/151:30 pmTUS - IAD
1 stop6h 47mUnited Airlines
Wed 9/176:35 amIAD - TUS
1 stop7h 08mUnited Airlines
Deal found 8/21$350
This American Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:19 pmTUS - IAD
2 stops12h 48mAmerican Airlines
Wed 9/176:25 amIAD - TUS
1 stop7h 20mAmerican Airlines
Deal found 8/21$355
This American Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1211:39 amTUS - IAD
1 stop8h 06mAmerican Airlines
Tue 9/165:40 pmIAD - TUS
1 stop18h 05mAmerican Airlines
Deal found 8/20$357

Cheapflights Fare Finder

 
Customize your flight search to find flights from Tucson to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 21, 2025.
Use the filters below to find and compare flights from Tucson to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Tucson

Fly to

Dulles Intl

Route

Depart

Return

Price

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 11/13

4:35 pm-6:23 am

1 stop11h 48m

Washington, D.C. Dulles Intl

Tue 11/18

7:43 am-3:39 pm

1 stop9h 56m

$306

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 12/11

8:26 am-4:06 pm

1 stop5h 40m

Washington, D.C. Dulles Intl

Wed 12/17

11:30 am-4:05 pm

1 stop6h 35m

$307

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 12/16

5:25 am-3:45 pm

1 stop8h 20m

Washington, D.C. Dulles Intl

Mon 1/12

5:30 pm-10:25 pm

1 stop6h 55m

$307

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 12/16

12:00 pm-8:42 pm

1 stop6h 42m

Washington, D.C. Dulles Intl

Mon 1/12

5:15 pm-9:42 pm

1 stop6h 27m

$307

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 10/29

5:00 am-4:47 pm

1 stop8h 47m

Washington, D.C. Dulles Intl

Sat 11/1

6:11 am-12:35 pm

1 stop9h 24m

$307

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 11/13

11:30 am-11:59 pm

2 stops10h 29m

Washington, D.C. Dulles Intl

Tue 11/18

5:27 pm-10:50 pm

1 stop7h 23m

$312

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 12/16

1:26 pm-11:55 pm

2 stops8h 29m

Washington, D.C. Dulles Intl

Mon 1/12

6:30 am-11:41 am

1 stop7h 11m

$312

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 10/28

1:32 pm-10:51 pm

1 stop6h 19m

$126

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 12/24

2:37 pm-10:14 pm

1 stop5h 37m

$126

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 10/28

7:00 am-11:00 pm

2 stops13h 00m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 15 results
1
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Best time to book a flight from Tucson to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Tucson with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Tucson to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Tucson to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Tucson to Dulles Intl. Price data was last updated on August 8, 2025.

The best time to book flights from Tucson to Washington, D.C. Dulles Intl Airport is 66 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Tucson to Washington, D.C. Dulles Intl Airport?

Currently, July is the cheapest month in which you can book a flight from Tucson to Washington, D.C. Dulles Intl Airport (average of $303). Flying from Tucson to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TUS to IAD?

Find hourly flight availability from Tucson to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 21, 2025.

It’s optimal to fly from Tucson to Washington, D.C. Dulles Intl Airport in the evening. By choosing this option you can save up to 10% on the cost of your flight, compared to a flight in the afternoon.

How much does it cost to fly round-trip from Tucson to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated August 21, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Tucson to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,934 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Tucson to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Tucson to Washington, D.C. Dulles Intl?

    Tucson (TUS), located 7.5 mi from the city center, is the airport you fly out of when you book flights from Tucson to Washington, D.C. Dulles Intl. 4 airlines have flights from Tucson to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Tucson to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

  • How long is the flight from Tucson to Washington, D.C. Dulles Intl Airport?

    There are many flights that can get you from Tucson to Washington, D.C. Dulles Intl Airport in 5h 40m. Fly via Alaska Airlines, American Airlines, or Southwest to get the fastest option. Airlines will cover a distance of 1928 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Tucson to Washington, D.C. Dulles Intl Airport round-trip?

    Cheapflights users have booked flights from Tucson to Washington, D.C. Dulles Intl Airport round-trip from $298. Other airlines that can offer you cheap pricing are Delta, from $316, and United Airlines, from $326. You may be able to fly from Tucson to Washington, D.C. Dulles Intl Airport for 34% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Tucson to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $126. However, be on the lookout for offers from Delta and Frontier, as they are both options that can get you from Tucson to Washington, D.C. Dulles Intl Airport for a low price.

  • Can I find deals for flights from Tucson to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Tucson to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Tucson to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Tucson to Dulles Intl.

  • Can I find deals for business class flights from Tucson to Dulles Intl?

    Yes. Cheapflights offers flight deals from Tucson to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Tucson to Washington, D.C. Dulles Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Tucson to Washington, D.C. Dulles Intl Airport (average of $303). Flying from Tucson to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Waldorf
Bowie

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Tucson to Dulles Intl

Discover the top 4 airlines that operate flights from Tucson to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$298Average$416FlexibilityNo cancel feeOn-time71%
DeltaCheapest$316Average$383FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$326Average$517FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$397Average$506FlexibilityNo cancel feeOn-time63%

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