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$176+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TUS
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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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 21 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap 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 September 17, 2025.

Round-trip from

$344
(American Airlines)

One-way from

$176
(United Airlines)

Popular in

November

Cheapest in

June

Average price

$532
From Washington, D.C. Dulles Intl to Tucson
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One-way flight from Washington, D.C. Dulles Intl to Tucson
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Highest demand for flights based on searches. 6% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 11/105:27 pmIAD - TUS
1 stop18h 12mAmerican Airlines
Wed 11/196:00 amTUS - IAD
1 stop14h 33mAmerican Airlines
Deal found 9/15$344
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Sat 11/86:04 amIAD - TUS
1 stop11h 47mAmerican Airlines
Sat 11/1510:29 amTUS - IAD
1 stop9h 59mAmerican Airlines
Deal found 9/16$345
This Delta deal was found by Cheapflights users on 9/15. 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 11/15:52 pmIAD - TUS
1 stop7h 38mDelta
Tue 11/47:00 amTUS - IAD
1 stop7h 57mDelta
Deal found 9/15$351
This Delta deal was found by Cheapflights users on 9/15. 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 10/256:15 amIAD - TUS
1 stop7h 18mDelta
Tue 10/287:00 amTUS - IAD
2 stops13h 20mDelta
Deal found 9/15$356
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 10/256:34 amIAD - TUS
2 stops11h 30mAmerican Airlines
Wed 10/297:08 amTUS - IAD
2 stops12h 43mAmerican Airlines
Deal found 9/15$361
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/238:53 amIAD - TUS
1 stop17h 41mAlaska Airlines
Fri 11/144:35 pmTUS - IAD
1 stop11h 48mAlaska Airlines
Deal found 9/16$364
This Delta deal was found by Cheapflights users on 9/15. 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 11/145:59 pmIAD - TUS
1 stop8h 00mDelta
Wed 11/196:00 amTUS - IAD
1 stop9h 04mDelta
Deal found 9/15$365
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:40 amIAD - TUS
2 stops12h 00mSouthwest
Tue 11/185:25 amTUS - IAD
1 stop8h 20mSouthwest
Deal found 9/14$369
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/308:25 amIAD - TUS
1 stop9h 37mUnited Airlines
Mon 11/312:01 pmTUS - IAD
1 stop8h 11mUnited Airlines
Deal found 9/15$381

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 September 17, 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

Tue 11/4

7:05 am-1:05 pm

1 stop8h 00m

Tucson

Tue 11/11

1:48 pm-11:19 pm

1 stop7h 31m

$351

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Tue 10/7

6:01 am-10:16 am

1 stop7h 15m

Tucson

Sat 10/11

3:15 pm-5:36 am

1 stop11h 21m

$351

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Sat 11/1

6:15 am-10:33 am

1 stop7h 18m

Tucson

Mon 11/3

2:15 pm-11:19 pm

1 stop7h 04m

$351

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Wed 10/15

6:30 am-2:18 pm

1 stop10h 48m

Tucson

Wed 10/22

1:30 pm-11:22 pm

1 stop6h 52m

$351

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Sat 10/25

5:52 pm-10:30 pm

1 stop7h 38m

Tucson

Tue 10/28

11:15 am-11:33 pm

1 stop9h 18m

$351

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Thu 12/11

6:03 am-2:06 pm

1 stop10h 03m

Tucson

Mon 12/15

6:00 am-5:01 pm

1 stop9h 01m

$351

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Sat 10/25

5:52 pm-10:30 pm

1 stop7h 38m

Tucson

Wed 10/29

11:15 am-11:33 pm

1 stop9h 18m

$351

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Thu 10/23

8:53 am-11:34 pm

1 stop17h 41m

Tucson

Fri 11/14

4:35 pm-6:23 am

1 stop11h 48m

$364

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Thu 12/11

6:00 am-1:44 pm

1 stop9h 44m

Tucson

Mon 12/15

6:00 am-4:18 pm

1 stop8h 18m

$365

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Fri 11/14

5:59 pm-11:59 pm

1 stop8h 00m

Tucson

Wed 11/19

6:00 am-5:04 pm

1 stop9h 04m

$365

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 21 results
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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 September 12, 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 21 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Tucson (average of $361). Flying from Washington, D.C. Dulles Intl Airport to Tucson in March is currently the most expensive (average of $424). 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 September 17, 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 34% 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 September 17, 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
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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 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 1 inbound flight 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 15m. Delta provides one of the quickest options available for as low as $351. 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 Southwest, from $336. 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Tucson (average of $361). Flying from Washington, D.C. Dulles Intl Airport to Tucson in March is currently the most expensive (average of $424). 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$277Average$391FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$312Average$400FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$336Average$427FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$349Average$538FlexibilityNo cancel feeOn-time69%

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