HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — IAD
May 3 — May 101
Sun 5/3
Sun 5/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Tucson to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 3, 2026.

This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:51 am
TUS
-
IAD
1 stop14h 49m
American Airlines
Wed 5/66:10 am
IAD
-
TUS
1 stop16h 34m
American Airlines
Deal found 4/1$323
This Southwest deal was found by Cheapflights users on 3/31. 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 4/216:35 am
TUS
-
IAD
1 stop6h 15m
Southwest
Tue 4/284:30 pm
IAD
-
TUS
1 stop7h 45m
Southwest
Deal found 3/31$327
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:50 am
TUS
-
IAD
2 stops12h 50m
Southwest
Wed 5/65:30 pm
IAD
-
TUS
1 stop6h 55m
Southwest
Deal found 4/1$332
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:04 pm
TUS
-
IAD
1 stop8h 22m
American Airlines
Wed 5/65:59 pm
IAD
-
TUS
1 stop7h 56m
American Airlines
Deal found 4/1$338
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:04 pm
TUS
-
IAD
1 stop8h 22m
American Airlines
Tue 4/286:10 am
IAD
-
TUS
1 stop13h 28m
American Airlines
Deal found 4/1$339
This American Airlines deal was found by Cheapflights users on 3/31. 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 5/96:10 am
IAD
-
TUS
1 stop8h 05m
American Airlines
Deal found 3/31$341
This American Airlines deal was found by Cheapflights users on 4/2. 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 4/305:16 pm
TUS
-
IAD
1 stop9h 24m
American Airlines
Tue 5/56:10 am
IAD
-
TUS
1 stop13h 28m
American Airlines
Deal found 4/2$345

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 April 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$323
(American Airlines)

One-way from

$164
(Delta)

Popular in

October

Cheapest in

February

Average price

$424
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. 17% potential increase in price ($100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($25 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 April 3, 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 4/29

7:50 am-11:40 pm

2 stops12h 50m

Washington, D.C. Dulles Intl

Wed 5/6

5:30 pm-9:25 pm

1 stop6h 55m

$332

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 6/4

11:45 am-10:47 pm

1 stop8h 02m

Washington, D.C. Dulles Intl

Mon 6/8

6:10 am-12:01 pm

1 stop8h 51m

$425

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Fri 5/22

5:35 am-12:20 am

2 stops15h 45m

Washington, D.C. Dulles Intl

Tue 5/26

6:20 am-10:25 am

1 stop7h 05m

$437

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Fri 5/22

5:35 am-12:20 am

2 stops15h 45m

Washington, D.C. Dulles Intl

Wed 5/27

6:20 am-9:25 pm

2 stops18h 05m

$448

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Fri 6/19

5:25 pm-4:58 am

1 stop8h 33m

Washington, D.C. Dulles Intl

Tue 6/23

7:24 pm-11:16 pm

1 stop6h 52m

$497

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Fri 4/24

5:37 pm-9:50 am

2 stops13h 13m

Washington, D.C. Dulles Intl

Sun 4/26

6:00 am-1:11 pm

2 stops10h 11m

$507

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Thu 4/16

6:00 am-4:31 pm

1 stop7h 31m

Washington, D.C. Dulles Intl

Thu 4/30

6:00 am-1:11 pm

1 stop10h 11m

$510

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 4/15

6:35 am-3:50 pm

1 stop6h 15m

Washington, D.C. Dulles Intl

Mon 5/4

4:30 pm-10:50 pm

1 stop9h 20m

$510
Quickest round-trip

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Sat 4/18

6:40 am-4:25 pm

1 stop6h 45m

Washington, D.C. Dulles Intl

Sat 5/2

5:05 pm-9:00 pm

1 stop6h 55m

$510

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Fri 4/17

5:35 am-5:05 pm

1 stop8h 30m

Washington, D.C. Dulles Intl

Mon 4/20

4:30 pm-10:50 pm

1 stop9h 20m

$510

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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 April 3, 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
4,344 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

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
4,344 reviews
Southwest
8.0
Very good
4,344 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

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
8,374 reviews
Southwest
8.0
Very good
4,344 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

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
9,538 reviews
Southwest
8.0
Very good
4,344 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

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
11,551 reviews
Southwest
8.0
Very good
4,344 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

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 8h 02m. Fly via Southwest or American Airlines 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 35% 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
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
Cordova
Manassas

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 April 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$306Average$367FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$471FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$326Average$508FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$366Average$508FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights