IAD - TUS

$135 Find Cheap Flights from Washington Dulles Airport to Tucson

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Tucson departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Tucson

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Tucson, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Tucson, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Tucson (IAD-TUS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Tucson that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Tucson

Thu, Dec 11 - Mon, Dec 15
Delta Logo
6:03 am - 2:09 pmIAD-TUS
10h 06m1 stop
Delta Logo
6:00 am - 7:19 pmTUS-IAD
11h 19m2 stops
$356Delta
Find Deal
Mon, Nov 24 - Tue, Dec 2
Delta Logo
6:03 am - 2:08 pmIAD-TUS
10h 05m1 stop
Delta Logo
5:50 pm - 9:11 amTUS-IAD
13h 21m2 stops
$359Delta
Find Deal
Wed, Nov 19 - Thu, Nov 20
Southwest Logo
7:40 am - 3:25 pmIAD-TUS
9h 45m1 stop
Southwest Logo
5:25 am - 3:45 pmTUS-IAD
8h 20m1 stop
$363Southwest
Find Deal
Thu, Jan 1 - Thu, Jan 8
American Airlines Logo
6:05 am - 11:36 amIAD-TUS
7h 31m1 stop
American Airlines Logo
9:56 am - 11:12 pmTUS-IAD
11h 16m2 stops
$366American Airlines
Find Deal
Tue, Jan 27 - Tue, Feb 3
Southwest Logo
9:05 am - 5:10 pmIAD-TUS
10h 05m2 stops
Southwest Logo
7:20 am - 9:55 pmTUS-IAD
12h 35m2 stops
$367Southwest
Find Deal
Thu, Nov 20 - Sat, Nov 22
American Airlines Logo
6:04 am - 1:51 pmIAD-TUS
9h 47m1 stop
American Airlines Logo
2:41 pm - 11:41 pmTUS-IAD
7h 00m1 stop
$385American Airlines
Find Deal
Thu, Dec 11 - Sun, Dec 14
Alaska Airlines Logo
7:34 am - 11:59 pmIAD-TUS
18h 25m1 stop
Alaska Airlines Logo
6:00 am - 6:06 amTUS-IAD
22h 06m1 stop
$402Alaska Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14
Alaska Airlines Logo
7:34 am - 3:45 pmIAD-TUS
10h 11m1 stop
Alaska Airlines Logo
6:00 am - 6:06 amTUS-IAD
22h 06m1 stop
$412Alaska Airlines
Find Deal
Thu, Nov 27 - Wed, Dec 3
United Airlines Logo
8:30 am - 4:22 pmIAD-TUS
9h 52m1 stop
United Airlines Logo
8:00 am - 5:30 pmTUS-IAD
7h 30m1 stop
$416United Airlines
Find Deal
Wed, Feb 4 - Tue, Feb 10
United Airlines Logo
6:03 am - 11:57 amIAD-TUS
7h 54m1 stop
United Airlines Logo
8:15 am - 4:35 pmTUS-IAD
6h 20m1 stop
$441United Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $356 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
June
Cheapest • 31% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$356
Overall average: $440
Delta
Thu 12/11Mon 12/15
IAD - TUS • 1 stop
Cheapest one-way
$135
Typical prices: $163-$233
Multiple Airlines
Tue 11/11
IAD - TUS • 3 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Tucson!
Booking Insights

KAYAK's insights & trends for Dulles Intl to Tucson flights

Get data-powered insights and trends into flights from Dulles Intl to Tucson to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Tucson?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Tucson clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Tucson on a Tuesday and more expensive on a Friday. On your return trip to Washington Dulles Airport, you should consider flying back on a Wednesday, and avoid Mondays for better deals.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Tucson?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Tucson, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Tucson is June, where tickets cost $302 (return) on average. On the other hand, the most expensive months are November and May, where the average cost of round-trip tickets is $604 and $538 respectively.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Tucson?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Tucson, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Tucson, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$135
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Washington Dulles Airport to Tucson

When to book flights from Dulles Intl to Tucson

Are your dates flexible? Find out the best times to travel from Dulles Intl to Tucson based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Tucson flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Tucson?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Tucson was $135 for a one-way ticket and $356 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Tucson?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Tucson?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Tucson?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Washington Dulles Airport and Tucson, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Tucson, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Tucson are Southwest and Delta. With an average price for the route of $396 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $392 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Tucson?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Tucson.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Tucson?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Tucson from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Tucson?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Tucson with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and TUS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Tucson?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Tucson from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Dulles Intl to Tucson

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Tucson. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Tucson? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4241 reviews
7.5Entertainment
8.1Boarding
7.0Food
8.6Crew
8.0Comfort
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

As smooth as you can expect. Some issues with boarding because the previous plane took forever to deplane but overall, a good experience.

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

They changed our Gate 5 times, and concourse twice. Changed our seats twice.

I miss the screens they used to have for the long flights. I use a Kendal and it doesn’t work well with there WiFi. I tried my cell and the wifi was not good for it either this is the free wifi.

Everything you need to know for your flight from Dulles Intl to Tucson

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.