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Dulles Intl

$180+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — IAD
Feb 1 — Feb 81
Sun 2/1
Sun 2/8
1 adult, Economy
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Cheap flight deals from Tucson to Dulles Intl

Best flights from Tucson to Dulles Intl
Discover carefully curated flight deals from Tucson to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 2, 2026.

This Delta deal was found by Cheapflights users on 1/1. 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 3/52:55 pmTUS - IAD
1 stop30h 15mDelta
Sun 3/87:00 amIAD - TUS
1 stop32h 37mDelta
Deal found 1/1$307
This Alaska Airlines deal was found by Cheapflights users on 12/31. 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 2/126:00 amTUS - IAD
1 stop9h 20mAlaska Airlines
Tue 2/177:05 amIAD - TUS
1 stop18h 54mAlaska Airlines
Deal found 12/31$326
This Alaska Airlines deal was found by Cheapflights users on 12/31. 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 2/126:00 amTUS - IAD
1 stop9h 20mAlaska Airlines
Fri 2/207:05 amIAD - TUS
1 stop18h 54mAlaska Airlines
Deal found 12/31$326
This Delta deal was found by Cheapflights users on 12/31. 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 2/208:05 amTUS - IAD
2 stops13h 05mDelta
Mon 2/237:30 amIAD - TUS
2 stops11h 25mDelta
Deal found 12/31$337
This Alaska Airlines deal was found by Cheapflights users on 1/1. 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.
Sat 3/76:00 amTUS - IAD
1 stop9h 20mAlaska Airlines
Mon 3/96:27 pmIAD - TUS
1 stop31h 32mAlaska Airlines
Deal found 1/1$327
This Delta deal was found by Cheapflights users on 12/31. 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 1/218:00 amTUS - IAD
2 stops13h 10mDelta
Sat 1/247:30 amIAD - TUS
2 stops11h 34mDelta
Deal found 12/31$337
This Alaska Airlines deal was found by Cheapflights users on 1/1. 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.
Fri 3/66:00 amTUS - IAD
1 stop21h 40mAlaska Airlines
Sun 3/87:05 amIAD - TUS
1 stop18h 54mAlaska Airlines
Deal found 1/1$327
This Alaska Airlines deal was found by Cheapflights users on 1/1. 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.
Sat 3/76:00 amTUS - IAD
1 stop9h 20mAlaska Airlines
Sun 3/87:05 amIAD - TUS
1 stop18h 54mAlaska Airlines
Deal found 1/1$337
This Alaska Airlines deal was found by Cheapflights users on 1/1. 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 1/296:00 amTUS - IAD
1 stop32h 26mAlaska Airlines
Thu 2/56:04 pmIAD - TUS
1 stop31h 55mAlaska Airlines
Deal found 1/1$347
This Alaska Airlines deal was found by Cheapflights users on 1/1. 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.
Fri 2/206:00 amTUS - IAD
1 stop9h 20mAlaska Airlines
Mon 2/237:05 amIAD - TUS
1 stop18h 54mAlaska Airlines
Deal found 1/1$347
This Alaska Airlines deal was found by Cheapflights users on 12/31. 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.
Sun 2/156:00 amTUS - IAD
1 stop9h 20mAlaska Airlines
Sun 2/227:05 amIAD - TUS
1 stop18h 54mAlaska Airlines
Deal found 12/31$355

Find 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 January 2, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$307
(Delta)

One-way from

$180
(American Airlines)

Popular in

October

Cheapest in

February

Average price

$396
Provider with most accurate pricing for Tucson-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Tucson-Washington, D.C. Dulles Intl flights.
Search Deals
From Tucson to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Tucson to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($115 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 2, 2026.
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 3/5

2:55 pm-11:10 pm

1 stop30h 15m

Washington, D.C. Dulles Intl

Sun 3/8

7:00 am-12:37 pm

1 stop32h 37m

$307

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 2/12

6:00 am-5:20 pm

1 stop9h 20m

Washington, D.C. Dulles Intl

Tue 2/17

7:05 am-11:59 pm

1 stop18h 54m

$326

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 2/12

6:00 am-5:20 pm

1 stop9h 20m

Washington, D.C. Dulles Intl

Fri 2/20

7:05 am-11:59 pm

1 stop18h 54m

$326

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Sat 3/7

6:00 am-5:20 pm

1 stop9h 20m

Washington, D.C. Dulles Intl

Mon 3/9

6:27 pm-10:59 pm

1 stop31h 32m

$327

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Fri 3/6

6:00 am-5:40 am

1 stop21h 40m

Washington, D.C. Dulles Intl

Sun 3/8

7:05 am-10:59 pm

1 stop18h 54m

$327

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Fri 2/20

8:05 am-11:10 pm

2 stops13h 05m

Washington, D.C. Dulles Intl

Mon 2/23

7:30 am-4:55 pm

2 stops11h 25m

$337

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

$337

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Sat 3/7

6:00 am-5:20 pm

1 stop9h 20m

Washington, D.C. Dulles Intl

Sun 3/8

7:05 am-10:59 pm

1 stop18h 54m

$337

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 1/29

6:00 am-4:26 pm

1 stop32h 26m

Washington, D.C. Dulles Intl

Thu 2/5

6:04 pm-11:59 pm

1 stop31h 55m

$347

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Fri 2/20

6:00 am-5:20 pm

1 stop9h 20m

Washington, D.C. Dulles Intl

Mon 2/23

7:05 am-11:59 pm

1 stop18h 54m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 20 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 January.
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.

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 January 2, 2026.
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
4,254 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,021 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,132 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,074 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 9h 20m. Fly via Delta or Alaska 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 $322. 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 $149. However, be on the lookout for offers from Delta and United 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, 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
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

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 January 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$298Average$413FlexibilityNo cancel feeOn-time71%
DeltaCheapest$306Average$368FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$326Average$461FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$366Average$508FlexibilityNo cancel feeOn-time63%

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