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Dulles Intl

$200+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — IAD
Aug 1 — Aug 81
Sat 8/1
Sat 8/8
1 adult, Economy
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Cheap 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 July 2, 2026.

This Delta deal was found by Cheapflights users on 7/1. 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.
Tue 8/2511:20 am
TUS
-
IAD
1 stop9h 19m
Delta
Tue 9/15:47 pm
IAD
-
TUS
1 stop6h 54m
Delta
Deal found 7/1$399
This Delta deal was found by Cheapflights users on 6/28. 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 10/2211:16 am
TUS
-
IAD
2 stops10h 15m
Delta
Tue 10/2711:05 am
IAD
-
TUS
2 stops12h 53m
Delta
Deal found 6/28$414
This Delta deal was found by Cheapflights users on 6/28. 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 10/2211:16 am
TUS
-
IAD
2 stops10h 15m
Delta
Mon 11/28:00 am
IAD
-
TUS
2 stops11h 00m
Delta
Deal found 6/28$419
This Delta deal was found by Cheapflights users on 7/1. 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.
Sat 8/11:49 pm
TUS
-
IAD
1 stop7h 52m
Delta
Mon 8/105:47 pm
IAD
-
TUS
1 stop6h 54m
Delta
Deal found 7/1$424
This Delta deal was found by Cheapflights users on 7/1. 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 12/38:00 am
TUS
-
IAD
2 stops13h 02m
Delta
Wed 12/164:00 pm
IAD
-
TUS
1 stop8h 56m
Delta
Deal found 7/1$429
This Delta deal was found by Cheapflights users on 6/28. 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 8/124:47 pm
TUS
-
IAD
2 stops13h 33m
Delta
Wed 8/198:28 am
IAD
-
TUS
1 stop6h 50m
Delta
Deal found 6/28$434
This American Airlines deal was found by Cheapflights users on 6/27. 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 8/67:10 am
TUS
-
IAD
1 stop7h 38m
American Airlines
Wed 8/126:09 am
IAD
-
TUS
1 stop9h 08m
American Airlines
Deal found 6/27$440
This United Airlines deal was found by Cheapflights users on 7/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:54 pm
TUS
-
IAD
1 stop8h 23m
United Airlines
Thu 10/2910:00 am
IAD
-
TUS
1 stop8h 05m
United Airlines
Deal found 7/1$449
This United Airlines deal was found by Cheapflights users on 6/28. 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 7/2910:55 am
TUS
-
IAD
1 stop6h 51m
United Airlines
Wed 8/56:30 am
IAD
-
TUS
1 stop9h 02m
United Airlines
Deal found 6/28$458

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 July 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$399
(Delta)

One-way from

$200
(Delta)

Popular in

October

Cheapest in

February

Average price

$670
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. 10% potential increase in price ($61 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 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 July 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 9/9

1:45 pm-12:40 am

1 stop7h 55m

Washington, D.C. Dulles Intl

Thu 9/10

12:26 pm-8:50 pm

2 stops11h 24m

$434

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 8/6

6:29 am-8:55 pm

2 stops11h 26m

Washington, D.C. Dulles Intl

Wed 8/12

5:47 pm-9:41 pm

1 stop6h 54m

$459

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 8/5

6:00 am-4:42 pm

1 stop7h 42m

Washington, D.C. Dulles Intl

Wed 8/12

5:47 pm-9:41 pm

1 stop6h 54m

$459

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 8/5

6:00 am-4:42 pm

1 stop7h 42m

Washington, D.C. Dulles Intl

Tue 8/11

8:28 am-12:18 pm

1 stop6h 50m

$459

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Mon 11/2

1:27 pm-12:31 am

1 stop9h 04m

Washington, D.C. Dulles Intl

Mon 11/9

7:15 am-5:17 pm

2 stops12h 02m

$479

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 8/25

3:03 pm-5:40 am

1 stop11h 37m

Washington, D.C. Dulles Intl

Sat 8/29

7:00 am-2:05 pm

1 stop10h 05m

$487

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Sun 8/30

4:47 pm-9:20 am

2 stops13h 33m

Washington, D.C. Dulles Intl

Sat 9/5

2:54 pm-8:33 pm

1 stop8h 39m

$492

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Sun 11/8

6:00 am-2:09 pm

1 stop6h 09m

Washington, D.C. Dulles Intl

Sat 11/14

12:30 pm-10:56 pm

2 stops12h 26m

$492
Quickest round-trip

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 8/25

9:15 am-7:23 pm

1 stop7h 08m

Washington, D.C. Dulles Intl

Sat 8/29

6:30 am-10:20 am

1 stop6h 50m

$499

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Sat 8/15

4:50 pm-9:20 am

2 stops13h 30m

Washington, D.C. Dulles Intl

Wed 8/19

6:00 am-12:18 pm

1 stop9h 18m

$533

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 20 resultsSorted by cheapest first
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 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 Tucson-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Tucson-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >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 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 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

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

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 July 2, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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
7.9
Good
4,249 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Southwest
7.9
Good
4,249 reviews
Southwest
7.9
Good
4,249 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Delta
7.8
Good
8,452 reviews
Southwest
7.9
Good
4,249 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
United Airlines
7.4
Good
9,926 reviews
Southwest
7.9
Good
4,249 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
American Airlines
7.1
Good
11,769 reviews
Southwest
7.9
Good
4,249 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

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 7h 55m. Fly via Delta to get the fastest option. Airlines will cover a distance of 1928 mi.

  • 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 $248. Other airlines that can offer you cheap pricing are American Airlines, from $298, and United Airlines, from $350. You may be able to fly from Tucson to Washington, D.C. Dulles Intl Airport for 55% 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 United Airlines, with whom users have recently found tickets for as low as $165. However, be on the lookout for offers from American Airlines and Southwest, 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.

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
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Falls Church
Fredericksburg
Hanover
Chantilly
Manassas
Silver Spring
Laurel
Clinton
Hunt Valley
Cordova

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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 July 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$367FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$298Average$504FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$350Average$602FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$401Average$536FlexibilityNo cancel feeOn-time63%

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