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Dulles Intl

$153+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — IAD
Jul 28 — Aug 41
Mon 7/28
Mon 8/4
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 42 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 July 23, 2025.

Round-trip from

$302
(United Airlines)

One-way from

$153
(Hawaiian Airlines)

Popular in

November

Cheapest in

February

Average price

$445
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. 18% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 23, 2025.

This United Airlines deal was found by Cheapflights users on 7/23. 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 8/2511:00 amTUS - IAD
1 stop6h 52mUnited Airlines
Thu 9/43:48 pmIAD - TUS
1 stop7h 30mUnited Airlines
Deal found 7/23$302
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 9/1812:17 pmTUS - IAD
1 stop9h 06mAlaska Airlines
Mon 9/226:09 pmIAD - TUS
1 stop20h 12mAlaska Airlines
Deal found 7/22$306
This American Airlines deal was found by Cheapflights users on 7/22. 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 8/279:16 amTUS - IAD
2 stops10h 40mAmerican Airlines
Wed 9/36:25 amIAD - TUS
1 stop9h 16mAmerican Airlines
Deal found 7/22$312
This FlightHub deal was found by Cheapflights users on 7/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3112:45 pmTUS - IAD
1 stop14h 49mFrontier
Sun 8/37:30 amIAD - TUS
1 stop7h 20mFrontier
Deal found 7/22$323
This Delta deal was found by Cheapflights users on 7/23. 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.
Tue 8/197:00 amTUS - IAD
2 stops13h 21mDelta
Fri 8/223:26 pmIAD - TUS
1 stop9h 21mDelta
Deal found 7/23$327
This Southwest deal was found by Cheapflights users on 7/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:40 amTUS - IAD
2 stops13h 25mSouthwest
Tue 9/235:45 amIAD - TUS
2 stops9h 35mSouthwest
Deal found 7/22$386

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 July 23, 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

Mon 8/25

11:00 am-8:52 pm

1 stop6h 52m

Washington, D.C. Dulles Intl

Thu 9/4

3:48 pm-8:18 pm

1 stop7h 30m

$302

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 9/18

12:17 pm-12:23 am

1 stop9h 06m

Washington, D.C. Dulles Intl

Mon 9/22

6:09 pm-11:21 am

1 stop20h 12m

$306

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 8/27

9:16 am-10:56 pm

2 stops10h 40m

Washington, D.C. Dulles Intl

Wed 9/3

6:25 am-12:41 pm

1 stop9h 16m

$312

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 8/19

12:54 pm-11:21 pm

1 stop7h 27m

Washington, D.C. Dulles Intl

Fri 8/22

5:25 pm-9:47 pm

1 stop7h 22m

$322

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 8/14

12:45 pm-6:34 am

1 stop14h 49m

Washington, D.C. Dulles Intl

Sun 8/17

7:30 am-11:50 am

1 stop7h 20m

$323

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 9/17

5:40 am-10:05 pm

2 stops13h 25m

Washington, D.C. Dulles Intl

Tue 9/23

5:45 am-12:20 pm

2 stops9h 35m

$386

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 9/16

12:17 pm-12:23 am

1 stop9h 06m

$153

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Mon 8/25

6:30 am-7:13 pm

1 stop9h 43m

$154

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 9/16

10:06 am-10:45 pm

2 stops9h 39m

$159

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 7/31

12:45 pm-6:34 am

1 stop14h 49m

$166

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 13 results
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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 July 18, 2025.

The best time to book flights from Tucson to Washington, D.C. Dulles Intl Airport is 42 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, August is the cheapest month in which you can book a flight from Tucson to Washington, D.C. Dulles Intl Airport (average of $309). 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 July 23, 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.

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 July 23, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,233 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,967 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,594 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,873 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

  • 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 $302. Other airlines that can offer you cheap pricing are Alaska Airlines, from $306, and American Airlines, from $312. You may be able to fly from Tucson to Washington, D.C. Dulles Intl Airport for 33% 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 Hawaiian Airlines, with whom users have recently found tickets for as low as $153. However, be on the lookout for offers from United Airlines and American Airlines, 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, August is the cheapest month in which you can book a flight from Tucson to Washington, D.C. Dulles Intl Airport (average of $309). 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
Fredericksburg
Gaithersburg
Easton
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
Springfield
National Harbor
Dundalk

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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 July 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$326Average$398FlexibilityNo cancel feeOn-time71%
DeltaCheapest$326Average$403FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$326Average$523FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$397Average$506FlexibilityNo cancel feeOn-time63%

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