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$178+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TUS
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
1 adult, Economy
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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 July 18, 2026.

This American Airlines deal was found by Cheapflights users on 7/13. 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 10/286:42 am
IAD
-
TUS
1 stop8h 51m
American Airlines
Tue 11/102:41 pm
TUS
-
IAD
1 stop5h 51m
American Airlines
Deal found 7/13$355
This Delta deal was found by Cheapflights users on 7/13. 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 10/287:25 am
IAD
-
TUS
2 stops11h 35m
Delta
Tue 11/101:40 pm
TUS
-
IAD
1 stop8h 40m
Delta
Deal found 7/13$360
This Delta deal was found by Cheapflights users on 7/17. 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 9/25:47 pm
IAD
-
TUS
1 stop6h 54m
Delta
Tue 9/81:45 pm
TUS
-
IAD
1 stop7h 55m
Delta
Deal found 7/17$377
This Delta deal was found by Cheapflights users on 7/17. 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 9/26:00 am
IAD
-
TUS
1 stop9h 18m
Delta
Sun 9/67:00 am
TUS
-
IAD
2 stops13h 26m
Delta
Deal found 7/17$382
This Delta deal was found by Cheapflights users on 7/13. 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 8/185:47 pm
IAD
-
TUS
1 stop6h 54m
Delta
Mon 8/246:00 am
TUS
-
IAD
1 stop9h 28m
Delta
Deal found 7/13$387
This Delta deal was found by Cheapflights users on 7/13. 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 9/1010:15 am
IAD
-
TUS
2 stops13h 35m
Delta
Wed 9/161:45 pm
TUS
-
IAD
1 stop7h 55m
Delta
Deal found 7/13$392
This Delta deal was found by Cheapflights users on 7/13. 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.
Sat 11/214:00 pm
IAD
-
TUS
1 stop8h 56m
Delta
Tue 12/11:40 pm
TUS
-
IAD
1 stop8h 40m
Delta
Deal found 7/13$397
This American Airlines deal was found by Cheapflights users on 7/13. 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 9/156:52 am
IAD
-
TUS
1 stop8h 28m
American Airlines
Sat 9/198:00 am
TUS
-
IAD
1 stop9h 24m
American Airlines
Deal found 7/13$399
This Delta deal was found by Cheapflights users on 7/13. 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.
Sat 11/215:30 pm
IAD
-
TUS
1 stop7h 26m
Delta
Sat 12/56:00 pm
TUS
-
IAD
2 stops13h 11m
Delta
Deal found 7/13$402
This Delta deal was found by Cheapflights users on 7/17. 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 9/1511:10 am
IAD
-
TUS
2 stops12h 40m
Delta
Sat 9/191:45 pm
TUS
-
IAD
1 stop7h 55m
Delta
Deal found 7/17$404
This Delta deal was found by Cheapflights users on 7/14. 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.
Sat 8/86:00 am
IAD
-
TUS
1 stop9h 18m
Delta
Tue 8/116:00 am
TUS
-
IAD
1 stop7h 42m
Delta
Deal found 7/14$407

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 July 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$355
(Delta)

One-way from

$178
(Delta)

Popular in

July

Cheapest in

August

Average price

$718
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. 9% potential increase in price ($53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 18, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Wed 8/5

8:28 am-12:18 pm

1 stop6h 50m

Tucson

Wed 8/12

1:28 pm-12:34 am

1 stop8h 06m

$355
Quickest round-trip

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Thu 8/6

5:47 pm-9:41 pm

1 stop6h 54m

Tucson

Mon 8/10

6:00 am-4:42 pm

1 stop7h 42m

$355

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Wed 8/26

8:28 am-12:18 pm

1 stop6h 50m

Tucson

Sat 8/29

7:00 am-7:59 pm

2 stops9h 59m

$360

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Mon 8/24

7:00 am-3:51 pm

2 stops11h 51m

Tucson

Thu 8/27

6:29 am-11:39 pm

2 stops14h 10m

$366

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Sat 8/29

6:10 am-12:18 pm

2 stops9h 08m

Tucson

Sat 9/5

4:50 pm-10:04 am

2 stops14h 14m

$387

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Thu 11/12

11:05 am-10:56 pm

2 stops13h 51m

Tucson

Mon 11/16

6:10 pm-9:11 am

2 stops13h 01m

$460

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Tue 9/15

12:25 pm-9:44 pm

2 stops12h 19m

Tucson

Sat 9/19

6:35 am-8:14 pm

2 stops10h 39m

$468

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Sat 8/1

12:35 pm-8:59 pm

2 stops11h 24m

Tucson

Wed 8/12

6:29 am-8:05 pm

2 stops10h 36m

$479
Cheapest one-way

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Tue 9/22

3:15 pm-9:26 pm

1 stop9h 11m

$178
Quickest one-way

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Thu 9/3

6:30 am-10:20 am

1 stop6h 50m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/13

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Tucson flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Tucson (average of $384). Flying from Washington, D.C. Dulles Intl Airport to Tucson in July is currently the most expensive (average of $718). 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.

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

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 July 18, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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
4,243 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
Delta
7.8
Good
8,478 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
United Airlines
7.4
Good
10,006 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
American Airlines
7.1
Good
11,826 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.

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 6h 50m. Delta provides one of the quickest options available for as low as $355. Airlines will cover a distance of 1928 mi.

  • 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 $315. Other airlines that can offer you cheap pricing are Southwest, from $336, and Delta, from $358. You may be able to fly from Washington, D.C. Dulles Intl Airport to Tucson for 38% 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Tucson (average of $384). Flying from Washington, D.C. Dulles Intl Airport to Tucson in July is currently the most expensive (average of $718). 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
Bisbee

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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 July 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$315Average$453FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$336Average$511FlexibilityNo cancel feeOn-time63%
DeltaCheapest$358Average$528FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$371Average$552FlexibilityNo cancel feeOn-time71%

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