IAD - TUS

$122 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 1/31. 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
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Everything you should know

Cheapest round-trip
$311
Overall average: $426
Delta
Wed 1/14Tue 1/20
IAD - TUS • 1 stop
Cheapest one-way
$122
Typical prices: $246-$351
Frontier
Sat 1/31
IAD - TUS • 2 stops
Top airlines
Delta
Cheapest • from $318 (round-trip)
Southwest
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 45% 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
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!
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

Wed, Jan 14 - Tue, Jan 20
Delta Logo
6:20 am - 12:32 pm
IAD
-
TUS
8h 12m1 stop
Delta Logo
1:42 pm - 12:24 am
TUS
-
IAD
8h 42m1 stop
$311Delta
Wed, Feb 4 - Sat, Feb 14
Delta Logo
6:00 am - 5:15 pm
IAD
-
TUS
13h 15m2 stops
Delta Logo
2:55 pm - 11:10 pm
TUS
-
IAD
30h 15m1 stop
$314Delta
Wed, Jan 14 - Tue, Jan 20
Delta Logo
6:20 am - 12:32 pm
IAD
-
TUS
8h 12m1 stop
Delta Logo
5:55 pm - 9:13 am
TUS
-
IAD
13h 18m2 stops
$316Delta
Thu, Jan 29 - Wed, Feb 4
Delta Logo
7:30 am - 5:15 pm
IAD
-
TUS
11h 45m2 stops
Delta Logo
8:15 am - 11:10 pm
TUS
-
IAD
12h 55m2 stops
$318Delta
Wed, Jan 14 - Tue, Jan 20
Delta Logo
6:00 am - 4:22 pm
IAD
-
TUS
12h 22m2 stops
Delta Logo
12:05 pm - 12:24 am
TUS
-
IAD
10h 19m2 stops
$321Delta
Mon, Feb 23 - Sat, Feb 28
Alaska Airlines Logo
7:05 am - 11:59 pm
IAD
-
TUS
18h 54m1 stop
Alaska Airlines Logo
6:00 am - 5:20 pm
TUS
-
IAD
9h 20m1 stop
$327Alaska Airlines
Thu, Jan 29 - Tue, Feb 3
Delta Logo
7:30 am - 5:15 pm
IAD
-
TUS
11h 45m2 stops
Delta Logo
7:00 am - 2:45 pm
TUS
-
IAD
5h 45m1 stop
$334Delta
Wed, Jan 14 - Sat, Jan 17
American Airlines Logo
5:26 pm - 10:55 pm
IAD
-
TUS
7h 29m1 stop
American Airlines Logo
12:54 pm - 9:17 pm
TUS
-
IAD
6h 23m1 stop
$335American Airlines
Sat, Feb 7 - Sat, Feb 14
Delta Logo
10:47 am - 10:07 pm
IAD
-
TUS
13h 20m2 stops
Delta Logo
2:55 pm - 11:10 pm
TUS
-
IAD
30h 15m1 stop
$338Delta
Wed, Jan 14 - Sat, Jan 17
Delta Logo
6:20 am - 12:32 pm
IAD
-
TUS
8h 12m1 stop
Delta Logo
8:00 am - 6:56 pm
TUS
-
IAD
8h 56m2 stops
$340Delta
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 $655 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 5 weeks before departure, which saves you about 45% 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$122
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly and prices are also 7% 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 $122 for a one-way ticket and $311 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, Delta or Southwest?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Tucson are Delta and Southwest. With an average price for the route of $392 and an overall rating of 7.9, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $396 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.
7.9
SouthwestOverall score based on 4250 reviews
8.1Boarding
7.5Entertainment
7.0Food
8.6Crew
8.0Comfort
Airline reviews

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

2.0 MediocreRobert, Dec 2025
LAS - TPA
Read more Southwest reviews

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Other than a way way too cold cabinets for the entire flight, all was great

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

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

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

AA delayed the flight for 3 hours and 50 minutes, but delayed the last 2 hours, 30 minutes at a time, so if we knew before, could have stayed at home and worked instead of being at the airport wasting time... The plane's crew was excellent, not their fault.

Liked that it was on time. Staff professional and friendly.

Things were delayed a little. But that didn’t affect my plans. It was fine. I was surprised it was so full thanksgiving day. The crew were friendly and professional.

We were told the flight was delayed 5 times, then it was moved to the next day.

Everything was good The connects, with no blame to crew. Or pilots. I understand they are short staffed. Everything went well for me. I'll be using you guys again in May if not sooner.

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

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

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.

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

Information on your arrival and departure airports