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Dulles Intl

$169+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — IAD
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
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 February 19, 2026.

This American Airlines deal was found by Cheapflights users on 2/15. 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.
Tue 5/55:16 pm
TUS
-
IAD
1 stop9h 24m
American Airlines
Sat 5/95:59 pm
IAD
-
TUS
1 stop7h 56m
American Airlines
Deal found 2/15$337
This Delta deal was found by Cheapflights users on 2/17. 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 5/511:15 am
TUS
-
IAD
2 stops10h 27m
Delta
Sat 5/95:30 pm
IAD
-
TUS
1 stop7h 13m
Delta
Deal found 2/17$342
This American Airlines deal was found by Cheapflights users on 2/16. 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.
Thu 3/195:00 am
TUS
-
IAD
1 stop8h 50m
American Airlines
Tue 3/245:37 pm
IAD
-
TUS
1 stop7h 30m
American Airlines
Deal found 2/16$350
This Delta deal was found by Cheapflights users on 2/18. 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 5/811:45 am
TUS
-
IAD
1 stop9h 14m
Delta
Tue 5/1211:15 am
IAD
-
TUS
2 stops12h 32m
Delta
Deal found 2/18$355
This American Airlines deal was found by Cheapflights users on 2/16. 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.
Wed 5/1312:04 pm
TUS
-
IAD
2 stops8h 55m
American Airlines
Tue 5/195:59 pm
IAD
-
TUS
1 stop6h 44m
American Airlines
Deal found 2/16$357
This Delta deal was found by Cheapflights users on 2/17. 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 4/2912:51 pm
TUS
-
IAD
1 stop8h 51m
Delta
Mon 5/45:27 pm
IAD
-
TUS
1 stop7h 24m
Delta
Deal found 2/17$361
This American Airlines deal was found by Cheapflights users on 2/18. 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 3/195:00 am
TUS
-
IAD
1 stop8h 50m
American Airlines
Mon 3/235:52 pm
IAD
-
TUS
1 stop8h 27m
American Airlines
Deal found 2/18$363
This American Airlines deal was found by Cheapflights users on 2/18. 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 3/125:00 am
TUS
-
IAD
1 stop8h 50m
American Airlines
Mon 3/165:52 pm
IAD
-
TUS
1 stop8h 27m
American Airlines
Deal found 2/18$367

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 February 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$337
(American Airlines)

One-way from

$169
(Delta)

Popular in

October

Cheapest in

February

Average price

$351
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 ($116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 19, 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

Wed 4/29

8:15 pm-8:49 am

2 stops9h 34m

Washington, D.C. Dulles Intl

Wed 5/6

5:59 pm-10:55 pm

1 stop7h 56m

$342

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 4/29

12:51 pm-12:42 am

1 stop8h 51m

Washington, D.C. Dulles Intl

Mon 5/4

10:11 am-8:33 pm

2 stops13h 22m

$366

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 4/28

5:37 pm-9:15 am

2 stops12h 38m

Washington, D.C. Dulles Intl

Thu 4/30

6:00 am-1:11 pm

1 stop10h 11m

$366

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Fri 5/8

11:45 am-11:59 pm

1 stop9h 14m

Washington, D.C. Dulles Intl

Mon 5/11

3:08 pm-9:43 pm

1 stop9h 35m

$374

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 3/18

6:45 am-5:20 pm

1 stop7h 35m

Washington, D.C. Dulles Intl

Wed 3/25

5:50 am-3:35 pm

2 stops12h 45m

$376

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Fri 3/27

7:00 am-4:50 pm

1 stop6h 50m

Washington, D.C. Dulles Intl

Tue 3/31

5:37 pm-10:07 pm

1 stop7h 30m

$379

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 3/31

5:00 am-4:31 pm

1 stop8h 31m

$169

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 3/11

3:24 pm-12:27 am

1 stop6h 03m

$169

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 3/18

3:24 pm-12:27 am

1 stop6h 03m

$169

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 5/12

12:04 pm-11:26 pm

1 stop8h 22m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/15

Showing 1-10 of 15 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 February.
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.

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 February 19, 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
4,295 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

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
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

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
8,212 reviews
Southwest
8.0
Very good
4,295 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

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
9,321 reviews
Southwest
8.0
Very good
4,295 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

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
11,313 reviews
Southwest
8.0
Very good
4,295 reviews

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

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 8h 51m. Fly via American Airlines or Delta 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 $306. Other airlines that can offer you cheap pricing are American Airlines, from $326, and United Airlines, from $326. You may be able to fly from Tucson to Washington, D.C. Dulles Intl Airport for 33% 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.

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
Silver Spring
Herndon
Fredericksburg
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Manassas
Bowie
Largo
McLean
Clinton
Towson

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 February 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$306Average$361FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$427FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$326Average$501FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$366Average$508FlexibilityNo cancel feeOn-time63%

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