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$101+ Cheap flights from Dulles Intl (IAD) to Tucson (TUS)

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TUS
Jan 1 — Jan 81
Thu 1/1
Thu 1/8
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Tucson are usually found in June or August, booked 36 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from Dulles Intl to Tucson

Cheapest flights from Dulles Intl to Tucson
Explore the most affordable flight options available from Dulles Intl to Tucson. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 2, 2025.

This American Airlines deal was found by Cheapflights users on 12/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:07 pmIAD - TUS
1 stop7h 49mAmerican Airlines
Tue 1/612:54 pmTUS - IAD
1 stop6h 23mAmerican Airlines
Deal found 12/1$394
This United Airlines deal was found by Cheapflights users on 11/29. 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 12/314:00 pmIAD - TUS
1 stop7h 58mUnited Airlines
Thu 1/81:40 pmTUS - IAD
1 stop9h 19mUnited Airlines
Deal found 11/29$440
This Southwest deal was found by Cheapflights users on 11/30. 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.
Tue 12/307:50 pmIAD - TUS
1 stop6h 45mSouthwest
Tue 1/67:55 amTUS - IAD
1 stop5h 55mSouthwest
Deal found 11/30$467
This United Airlines deal was found by Cheapflights users on 11/29. 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 12/312:24 pmIAD - TUS
1 stop9h 34mUnited Airlines
Wed 1/78:15 amTUS - IAD
1 stop9h 06mUnited Airlines
Deal found 11/29$468
This Southwest deal was found by Cheapflights users on 12/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:40 amIAD - TUS
2 stops12h 00mSouthwest
Thu 1/87:55 amTUS - IAD
1 stop5h 55mSouthwest
Deal found 12/1$507
This United Airlines deal was found by Cheapflights users on 11/29. 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.
Fri 12/196:20 amIAD - TUS
1 stop9h 18mUnited Airlines
Wed 12/316:34 pmTUS - IAD
1 stop10h 13mUnited Airlines
Deal found 11/29$513
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/172:30 pmIAD - TUS
1 stop9h 16mUnited Airlines
Sun 12/2110:40 amTUS - IAD
1 stop6h 10mUnited Airlines
Deal found 12/2$516
This Alaska Airlines deal was found by Cheapflights users on 11/30. 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 12/317:33 amIAD - TUS
1 stop18h 32mAlaska Airlines
Mon 1/56:01 amTUS - IAD
1 stop22h 12mAlaska Airlines
Deal found 11/30$521

Find flight deals from Dulles Intl to Tucson

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Tucson (TUS). 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 December 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$331
(Southwest)

One-way from

$101
(American Airlines)

Popular in

November

Cheapest in

June

Average price

$420
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Tucson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Tucson flights.
Search Deals
From Washington, D.C. Dulles Intl to Tucson
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Tucson
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Tucson 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 December 2, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Tucson that are best for you.

Fly from

Dulles Intl

Fly to

Tucson

Route

Depart

Return

Price

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Sat 2/21

12:38 pm-10:05 pm

2 stops11h 27m

Tucson

Tue 2/24

5:59 pm-9:08 am

2 stops13h 09m

$348

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Tue 1/6

6:00 am-4:22 pm

2 stops12h 22m

Tucson

Mon 1/12

1:42 pm-11:37 pm

1 stop7h 55m

$355

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Fri 1/16

5:23 pm-10:55 pm

1 stop7h 32m

Tucson

Fri 1/23

12:54 pm-9:17 pm

1 stop6h 23m

$360

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Wed 2/4

9:05 am-8:50 pm

2 stops13h 45m

Tucson

Sun 2/8

7:20 am-9:55 pm

2 stops12h 35m

$371

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Sun 2/22

7:05 am-11:59 pm

1 stop18h 54m

Tucson

Sun 3/1

6:00 am-5:40 am

1 stop21h 40m

$402

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Sat 2/21

5:05 am-5:20 pm

2 stops14h 15m

Tucson

Tue 2/24

7:20 am-9:55 pm

2 stops12h 35m

$402

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Fri 2/13

12:35 pm-10:05 pm

2 stops11h 30m

Tucson

Tue 2/17

5:35 pm-9:08 am

2 stops13h 33m

$402

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Fri 1/9

6:03 am-11:53 am

1 stop7h 50m

Tucson

Fri 1/9

8:07 pm-7:35 am

1 stop9h 28m

$411

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Mon 1/12

6:04 pm-11:59 pm

1 stop31h 55m

Tucson

Fri 1/16

6:08 pm-4:26 pm

2 stops20h 18m

$421

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Thu 1/8

12:23 pm-11:01 pm

2 stops12h 38m

Tucson

Sun 1/11

2:55 pm-11:10 pm

1 stop30h 15m

$423

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 21 results
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Compare providers for flights from Dulles Intl to Tucson

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 Dulles Intl to Tucson in December.
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 Washington, D.C. Dulles Intl Airport-Tucson flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Tucson flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Tucson flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Tucson 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 Washington, D.C. Dulles Intl Airport-Tucson 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 Dulles Intl to Tucson

Have a flexible travel schedule? Discover the best time to fly to Tucson from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Tucson

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Tucson. Price data was last updated on November 28, 2025.

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Tucson, you should look to book at least 36 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, July is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Tucson (average of $158). Flying from Washington, D.C. Dulles Intl Airport to Tucson in September is currently the most expensive (average of $377). 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 IAD to TUS?

Find hourly flight availability from Dulles Intl to Tucson. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 2, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Tucson at noon. Doing so could potentially save you 33% on the flight price compared to flying in the evening, which is usually more expensive.

Reviews of airlines servicing Tucson

Get insights into the airlines that provide service to Tucson. 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 Tucson. Reviews last updated December 2, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Washington, D.C. Dulles Intl Airport to Tucson have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,253 reviews

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,011 reviews
Southwest
8.0
Very good
4,253 reviews

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,063 reviews
Southwest
8.0
Very good
4,253 reviews

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,045 reviews
Southwest
8.0
Very good
4,253 reviews

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Tucson. 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 into for flights to Tucson from Washington, D.C. Dulles Intl?

    Tucson (TUS) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Tucson. You should not have trouble finding flights to Tucson from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the Tucson airport from Washington, D.C. Dulles Intl. It is only a 7.5 mi journey from Tucson (TUS) to Tucson’s city center.

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

    A quick flight from Washington, D.C. Dulles Intl Airport to Tucson can take about 7h 32m. Delta provides one of the quickest options available for as low as $360. 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 Washington, D.C. Dulles Intl Airport to Tucson round-trip?

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Tucson round-trip from $277. Other airlines that can offer you cheap pricing are American Airlines, from $312, and United Airlines, from $326. You may be able to fly from Washington, D.C. Dulles Intl Airport to Tucson for 37% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Tucson 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 Washington, D.C. Dulles Intl Airport to Tucson?

    Currently, July is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Tucson (average of $158). Flying from Washington, D.C. Dulles Intl Airport to Tucson in September is currently the most expensive (average of $377). 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 Tucson?

Book flights to Tucson if you plan to visit one of these locations
Sierra Vista
Green Valley

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Top 4 airlines flying from Dulles Intl to Tucson

Discover the top 4 airlines that operate flights from Dulles Intl to Tucson. 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 December 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$277Average$392FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$312Average$451FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$326Average$508FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$336Average$396FlexibilityNo cancel feeOn-time63%

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