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Dulles Intl

$164+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — IAD
mai 17 — mai 241
dim. 5/17
dim. 5/24
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 avril 17, 2026.

This Delta deal was found by Cheapflights users on 4/13. 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.
jeu. 5/284:52 pm
TUS
-
IAD
2 stops13h 24m
Delta
lun. 6/86:00 am
IAD
-
TUS
2 stops9h 18m
Delta
Deal found 4/13$366
This American Airlines deal was found by Cheapflights users on 4/16. 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.
mer. 6/101:21 pm
TUS
-
IAD
1 stop6h 26m
American Airlines
mer. 6/246:20 am
IAD
-
TUS
2 stops9h 59m
American Airlines
Deal found 4/16$369
This American Airlines deal was found by Cheapflights users on 4/12. 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.
jeu. 5/285:25 pm
TUS
-
IAD
1 stop8h 23m
American Airlines
mer. 6/106:18 am
IAD
-
TUS
1 stop9h 13m
American Airlines
Deal found 4/12$375
This American Airlines deal was found by Cheapflights users on 4/12. 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.
lun. 6/15:25 pm
TUS
-
IAD
1 stop8h 23m
American Airlines
sam. 6/66:14 am
IAD
-
TUS
1 stop7h 45m
American Airlines
Deal found 4/12$378
This Southwest deal was found by Cheapflights users on 4/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/136:35 am
TUS
-
IAD
1 stop6h 15m
Southwest
mer. 5/206:20 am
IAD
-
TUS
1 stop7h 05m
Southwest
Deal found 4/15$390
This American Airlines deal was found by Cheapflights users on 4/15. 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.
sam. 5/96:10 am
TUS
-
IAD
1 stop7h 59m
American Airlines
sam. 5/166:10 am
IAD
-
TUS
1 stop8h 05m
American Airlines
Deal found 4/15$391
This Southwest deal was found by Cheapflights users on 4/12. 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.
lun. 5/115:35 am
TUS
-
IAD
2 stops15h 45m
Southwest
mar. 5/126:20 am
IAD
-
TUS
1 stop7h 05m
Southwest
Deal found 4/12$394
This American Airlines deal was found by Cheapflights users on 4/16. 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.
mer. 5/135:00 am
TUS
-
IAD
1 stop9h 09m
American Airlines
mar. 8/186:00 am
IAD
-
TUS
1 stop8h 14m
American Airlines
Deal found 4/16$396
This Southwest deal was found by Cheapflights users on 4/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/283:20 pm
TUS
-
IAD
1 stop6h 00m
Southwest
lun. 6/15:55 pm
IAD
-
TUS
1 stop7h 00m
Southwest
Deal found 4/16$397
This American Airlines deal was found by Cheapflights users on 4/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/65:16 pm
TUS
-
IAD
1 stop9h 24m
American Airlines
jeu. 5/216:10 am
IAD
-
TUS
1 stop8h 51m
American Airlines
Deal found 4/14$401

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 avril 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$366
(Delta)

One-way from

$164
(United Airlines)

Popular in

October

Cheapest in

February

Average price

$604
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 ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 avril 17, 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

mar. 5/12

7:50 am-11:40 pm

2 stops12h 50m

Washington, D.C. Dulles Intl

mar. 5/19

6:20 am-11:55 am

2 stops8h 35m

$427

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

mar. 5/5

8:50 am-10:27 pm

1 stop10h 37m

Washington, D.C. Dulles Intl

mer. 5/6

3:15 pm-10:15 pm

1 stop10h 00m

$427

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

ven. 5/22

5:35 am-12:20 am

2 stops15h 45m

Washington, D.C. Dulles Intl

lun. 6/1

5:55 pm-9:55 pm

1 stop7h 00m

$437
Quickest round-trip

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

jeu. 6/4

11:45 am-12:13 am

1 stop9h 28m

Washington, D.C. Dulles Intl

lun. 6/8

8:27 am-12:18 pm

1 stop6h 51m

$443

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

jeu. 5/14

6:00 am-4:36 pm

1 stop7h 36m

Washington, D.C. Dulles Intl

mer. 8/19

7:00 am-4:17 pm

2 stops12h 17m

$466

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

sam. 5/23

11:00 am-10:55 pm

2 stops8h 55m

Washington, D.C. Dulles Intl

lun. 6/1

5:55 am-11:20 am

2 stops8h 25m

$469

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

ven. 6/19

4:47 pm-10:26 am

2 stops14h 39m

Washington, D.C. Dulles Intl

mar. 6/23

6:00 am-12:18 pm

1 stop9h 18m

$478

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

mer. 5/13

7:10 am-11:38 pm

2 stops13h 28m

Washington, D.C. Dulles Intl

lun. 5/18

6:08 am-12:15 pm

1 stop9h 07m

$478
Cheapest one-way

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

mar. 5/5

6:02 am-5:09 pm

1 stop8h 07m

$164

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

mer. 6/3

1:25 pm-12:51 am

1 stop8h 26m

$164

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 18 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 April.
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 avril 17, 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
8.0
Very good
4,328 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,328 reviews
Southwest
8.0
Very good
4,328 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,408 reviews
Southwest
8.0
Very good
4,328 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,602 reviews
Southwest
8.0
Very good
4,328 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,593 reviews
Southwest
8.0
Very good
4,328 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 9h 28m. Fly via Southwest, United 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 United Airlines, from $326, and American Airlines, from $332. You may be able to fly from Tucson to Washington, D.C. Dulles Intl Airport for 39% less than the average price by searching for these airlines.

  • 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
Owings Mills
Springfield
Arlington
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Largo
Upper Marlboro
Waldorf
Bowie
Clinton
Towson
Hunt Valley
Cordova

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 avril 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$306Average$367FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$326Average$512FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$332Average$477FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$401Average$508FlexibilityNo cancel feeOn-time63%

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