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Dulles Intl

$176+ 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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — IAD
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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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 November 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$296
(Delta)

One-way from

$176
(Delta)

Popular in

October

Cheapest in

February

Average price

$548
Provider with most accurate pricing for Tucson-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Tucson-Washington, D.C. Dulles Intl flights.
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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. 22% potential increase in price ($131 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 20, 2025.

This United Airlines deal was found by Cheapflights users on 11/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:30 amTUS - IAD
1 stop8h 20mUnited Airlines
Wed 12/314:00 pmIAD - TUS
1 stop7h 58mUnited Airlines
Deal found 11/19$351
This Delta deal was found by Cheapflights users on 11/18. 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.
Thu 12/111:49 pmTUS - IAD
1 stop8h 23mDelta
Wed 12/176:03 amIAD - TUS
1 stop10h 06mDelta
Deal found 11/18$361
This Delta deal was found by Cheapflights users on 11/18. 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.
Fri 12/127:30 amTUS - IAD
2 stops13h 57mDelta
Tue 12/166:03 amIAD - TUS
1 stop10h 06mDelta
Deal found 11/18$368
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:30 amTUS - IAD
2 stops10h 31mAmerican Airlines
Wed 12/172:16 pmIAD - TUS
2 stops10h 31mAmerican Airlines
Deal found 11/19$371
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:15 pmTUS - IAD
1 stop9h 14mDelta
Wed 12/105:59 pmIAD - TUS
1 stop7h 46mDelta
Deal found 11/19$383
This American Airlines deal was found by Cheapflights users on 11/18. 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.
Thu 12/189:04 amTUS - IAD
1 stop6h 13mAmerican Airlines
Mon 1/55:11 pmIAD - TUS
1 stop7h 35mAmerican Airlines
Deal found 11/18$385
This American Airlines deal was found by Cheapflights users on 11/18. 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.
Thu 12/256:00 amTUS - IAD
1 stop8h 16mAmerican Airlines
Thu 1/16:35 amIAD - TUS
2 stops9h 32mAmerican Airlines
Deal found 11/18$396

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 November 20, 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

Wed 1/21

8:00 am-11:10 pm

2 stops13h 10m

Washington, D.C. Dulles Intl

Sat 1/24

7:30 am-5:04 pm

2 stops11h 34m

$296

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 1/21

4:29 pm-4:26 pm

1 stop21h 57m

Washington, D.C. Dulles Intl

Sat 1/24

6:04 pm-3:30 pm

1 stop23h 26m

$324

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Fri 2/6

4:29 pm-4:26 pm

1 stop21h 57m

Washington, D.C. Dulles Intl

Tue 2/10

6:04 pm-11:59 pm

1 stop31h 55m

$324

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 1/6

6:01 am-5:43 pm

1 stop9h 42m

Washington, D.C. Dulles Intl

Wed 1/14

6:04 pm-11:59 pm

1 stop31h 55m

$324

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Mon 1/12

10:50 am-9:17 pm

1 stop8h 27m

Washington, D.C. Dulles Intl

Mon 1/19

5:26 pm-10:55 pm

1 stop7h 29m

$327

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 1/27

6:00 am-4:26 pm

1 stop32h 26m

Washington, D.C. Dulles Intl

Tue 2/3

6:04 pm-3:30 pm

1 stop23h 26m

$327

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 1/1

6:00 am-3:14 pm

1 stop7h 14m

$176

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 2/26

7:10 am-5:02 pm

1 stop7h 52m

$176

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 12/24

1:22 pm-10:52 pm

1 stop7h 30m

$176

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 12/16

12:33 pm-10:59 pm

1 stop8h 26m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 15 results
1
2

Compare providers for flights from Tucson to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Tucson to Dulles Intl in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Tucson-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Tucson-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Tucson-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Tucson-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Tucson-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Currently, June is the cheapest month in which you can book a flight from Tucson to Washington, D.C. Dulles Intl Airport (average of $239). Flying from Tucson to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $414). 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 November 20, 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 9% 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 November 20, 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
4,251 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

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
4,251 reviews
Southwest
8.0
Very good
4,251 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

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
7.9
Good
8,002 reviews
Southwest
8.0
Very good
4,251 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

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
9,028 reviews
Southwest
8.0
Very good
4,251 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

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
11,047 reviews
Southwest
8.0
Very good
4,251 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

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 8h 27m. Fly via Delta, Alaska Airlines, or American Airlines 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 $306, 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.

  • 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, June is the cheapest month in which you can book a flight from Tucson to Washington, D.C. Dulles Intl Airport (average of $239). Flying from Tucson to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $414). 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
Alexandria
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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 November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$298Average$404FlexibilityNo cancel feeOn-time71%
DeltaCheapest$306Average$379FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$326Average$486FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$392Average$471FlexibilityNo cancel feeOn-time63%

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