IAD - TUS

$176 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 10/14. 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

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
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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

Mon, Nov 10 - Wed, Nov 19
American Airlines Logo
5:27 pm - 9:39 amIAD-TUS
18h 12m1 stop
American Airlines Logo
6:00 am - 10:33 pmTUS-IAD
14h 33m1 stop
$344American Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 15
American Airlines Logo
6:04 am - 3:51 pmIAD-TUS
11h 47m1 stop
American Airlines Logo
10:29 am - 10:28 pmTUS-IAD
9h 59m1 stop
$345American Airlines
Find Deal
Wed, Oct 15 - Thu, Oct 16
United Airlines Logo
3:00 pm - 8:59 pmIAD-TUS
8h 59m1 stop
United Airlines Logo
6:30 am - 7:03 pmTUS-IAD
9h 33m1 stop
$346United Airlines
Find Deal
Sat, Nov 1 - Thu, Nov 6
Delta Logo
6:15 am - 10:33 amIAD-TUS
7h 18m1 stop
Delta Logo
2:15 pm - 11:20 pmTUS-IAD
7h 05m1 stop
$351Delta
Find Deal
Sat, Oct 25 - Tue, Oct 28
Delta Logo
6:15 am - 10:33 amIAD-TUS
7h 18m1 stop
Delta Logo
7:00 am - 11:20 pmTUS-IAD
13h 20m2 stops
$356Delta
Find Deal
Tue, Nov 11 - Tue, Nov 18
Southwest Logo
7:40 am - 5:40 pmIAD-TUS
12h 00m2 stops
Southwest Logo
5:25 am - 3:45 pmTUS-IAD
8h 20m1 stop
$369Southwest
Find Deal
Thu, Oct 30 - Mon, Nov 3
United Airlines Logo
8:25 am - 3:02 pmIAD-TUS
9h 37m1 stop
United Airlines Logo
12:01 pm - 10:12 pmTUS-IAD
8h 11m1 stop
$381United Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 4
Southwest Logo
5:40 am - 9:25 amIAD-TUS
6h 45m1 stop
Southwest Logo
10:55 am - 10:10 pmTUS-IAD
9h 15m2 stops
$383Southwest
Find Deal
Sat, Nov 1 - Mon, Nov 3
Alaska Airlines Logo
7:43 am - 10:57 pmIAD-TUS
18h 14m1 stop
Alaska Airlines Logo
6:00 am - 6:23 amTUS-IAD
22h 23m1 stop
$432Alaska Airlines
Find Deal
Thu, Oct 23 - Fri, Nov 14
Alaska Airlines Logo
8:53 am - 11:34 pmIAD-TUS
17h 41m1 stop
Alaska Airlines Logo
4:35 pm - 4:40 pmTUS-IAD
22h 05m1 stop
$436Alaska Airlines
Find Deal

Everything you should know

Top airlines
American Airlines
Cheapest • from $344 (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 • 32% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$344
Overall average: $604
American Airlines
Mon 11/10Wed 11/19
IAD - TUS • 1 stop
Cheapest one-way
$176
Typical prices: $306-523
Delta
Tue 10/14
IAD - TUS • 1 stop
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 19 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$176
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 17% 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 $176 for a one-way ticket and $344 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 oneworld 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 $427 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 $391 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 4242 reviews
7.5Entertainment
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
Airline reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

10.0 ExcellentG, Sep 2025LAS - ATL
Read more Southwest reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

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

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

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.

Update departure times in a more timely manner. We are not boarding on time if the plane isn’t arriving until after our scheduled departure time.

Pitch was very small. Knees were on the seat back in front of me.

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

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