TUS - IAD

$200 Find Cheap Flights from Tucson to Washington Dulles Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Tucson to Dulles Intl departing on 7/21. 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

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Everything you should know

Cheapest round-trip
$399
Typical prices: $401-$632
Delta
Tue 8/25Tue 9/1
TUS - IAD • 1 stop
Cheapest one-way
$200
Typical prices: $238-$349
Delta
Tue 7/21
TUS - IAD • 1 stop
Top airlines
Cheapest • from $399 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Tucson and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $355 (round-trip)
Shortest trip • 6h 51m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
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 Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Tucson to Dulles Intl 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 Tucson to Dulles Intl

Tue, Aug 25 - Tue, Sep 1
Delta Logo
11:20 am - 11:39 pm
TUS
-
IAD
9h 19m
1 stop
Delta Logo
5:47 pm - 9:41 pm
IAD
-
TUS
6h 54m
1 stop
$399Delta
Tue, Aug 25 - Tue, Sep 1
Delta Logo
11:20 am - 11:39 pm
TUS
-
IAD
9h 19m
1 stop
Delta Logo
11:10 am - 9:41 pm
IAD
-
TUS
13h 31m
2 stops
$404Delta
Tue, Aug 25 - Tue, Sep 1
Delta Logo
6:29 am - 11:39 pm
TUS
-
IAD
14h 10m
2 stops
Delta Logo
10:16 am - 9:46 pm
IAD
-
TUS
14h 30m
2 stops
$409Delta
Thu, Oct 22 - Tue, Oct 27
Delta Logo
11:16 am - 12:31 am
TUS
-
IAD
10h 15m
2 stops
Delta Logo
11:05 am - 8:58 pm
IAD
-
TUS
12h 53m
2 stops
$414Delta
Thu, Oct 22 - Mon, Nov 2
Delta Logo
11:16 am - 12:31 am
TUS
-
IAD
10h 15m
2 stops
Delta Logo
8:00 am - 5:00 pm
IAD
-
TUS
11h 00m
2 stops
$419Delta
Sat, Aug 1 - Mon, Aug 10
Delta Logo
1:49 pm - 12:41 am
TUS
-
IAD
7h 52m
1 stop
Delta Logo
5:47 pm - 9:41 pm
IAD
-
TUS
6h 54m
1 stop
$424Delta
Thu, Sep 17 - Tue, Sep 22
Delta Logo
1:45 pm - 12:40 am
TUS
-
IAD
7h 55m
1 stop
Delta Logo
12:26 pm - 8:50 pm
IAD
-
TUS
11h 24m
2 stops
$429Delta
Wed, Aug 12 - Wed, Aug 19
Delta Logo
4:47 pm - 9:20 am
TUS
-
IAD
13h 33m
2 stops
Delta Logo
8:28 am - 12:18 pm
IAD
-
TUS
6h 50m
1 stop
$434Delta
Thu, Oct 1 - Thu, Oct 29
United Airlines Logo
5:54 pm - 5:17 am
TUS
-
IAD
8h 23m
1 stop
United Airlines Logo
10:00 am - 3:05 pm
IAD
-
TUS
8h 05m
1 stop
$449United Airlines
Sat, Aug 1 - Mon, Aug 10
Delta Logo
1:49 pm - 12:41 am
TUS
-
IAD
7h 52m
1 stop
Delta Logo
11:10 am - 9:41 pm
IAD
-
TUS
13h 31m
2 stops
$454Delta
Booking Insights

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

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

How much is a round-trip flight from Tucson to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Tucson to Washington, D.C. Dulles Intl Airport departing in August.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Tucson to Washington, D.C. Dulles Intl Airport, 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 Tucson to Washington, D.C. Dulles Intl Airport is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are October and July, where the average cost of round-trip tickets is $745 and $670 respectively.

Good to know

Low seasonFebruary
Cheapest flight$200
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Tucson to Washington Dulles Airport

When to book flights from Tucson to Dulles Intl

Are your dates flexible? Find out the best times to travel from Tucson to Dulles Intl 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 Tucson to Washington Dulles Airport flights

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

    In the last 5 days, the lowest price for a flight from Tucson to Washington, D.C. Dulles Intl Airport was $200 for a one-way ticket and $399 for a round-trip.

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

    No

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Tucson to Washington, D.C. are Southwest and Delta. With an average price for the route of $536 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $367 and an overall rating of 7.8.

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

    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 Tucson to Washington Dulles Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Tucson 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 Tucson to Washington Dulles Airport?

    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 Washington Dulles Airport with an airline and back to Tucson with another airline. Booking your flights between Tucson and IAD 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 Tucson to Washington Dulles Airport?

    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 Washington Dulles Airport from Tucson 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 Tucson to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Tucson to Washington, D.C.. 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 Tucson to Dulles Intl? 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
8.0Comfort
7.5Entertainment
8.6Crew
8.1Boarding
7.0Food
Airline reviews

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

10.0 ExcellentCindy, Apr 2026
PHX - MDW
Read more Southwest reviews

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

Great flight. I didn't get a drink because I was asleep whole on the flight.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

The flight was delayed about 20 minutes, but this was an evening flight, so it comes as no surprise. This flight came a good 1.5 days ahead of hurricane Helene which was still far out in the gulf. However, the flight never removed the seated buckle light. The staff announced from the beginning that due to the bad weather (I suppose the hurricane a day and a half away) they would have to do an abbreviated service with water and a snack. I am fine with their water and snack offering, but this was one of the smoothest flights I've had in years. If Southwest believes a flight like this requires everyone to remain seated, then all of their flights should remain buckled for the entire flight. I cannot help but wonder if things like this are a sneaky way to cut back on expenses since the airline is currently under a lot of pressure to reduce costs.

Although the flight was delayed, but the crew was amazing. They did the best they could to make the time enjoyable.

My experience was find with Southwest. The only issue I have is...at the exact time for me to check in...I don't understand how I always end up in C.

The flight attendant engaged with people and was funny. That’s the part that changes the experience to excellent

The flight was smooth, the crew was great but the plane was quite old

Got to fly my favorite plane, the Boeing 767-400ER, to Milan. The soft blush pink mood lighting during meal service was very beautiful and gorgeous. The service was top-notch, and our flights were on time. I highly recommend Delta.

Flight was warm for first few hours and quite rough

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Only not having an assigned seat was an issue. Rest was great

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

Delta is a premier airline so my expectations are most always met.

1st flight had mechanical issues after we boarded and almost took off. They tried to fix on runway but couldn’t do we went back to the gate. They couldn’t fix it there either. So we had to deplane and board another plane 2 hrs later. All in all our flight was delayed 4 hrs so we had to cancel some business meeting we had in London for the morning since we were supposed to arrive at 7am and did not arrive until 11:45am. Also, the 2nd plane had mechanical issues as well but fortunately they were able to fix on runway.

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

My bags were misplaced!!! Im in a foreign country with no bags

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Hydraulic leak caused the flight to be cancelled. Auto system scheduled us on a 3 am flight. Wevhsedvrebook on the app and hit schedules later in the afternoon. Our luggage per gate and ticket agent would be rescanned and put in our new flight. Did not happen. Our luggage stayed in hsv. Baggage claim in wash dc unable to help. We filed a claim. Several emails about our luggage were in conflict with one another. Called as baggage and was on hold 30 minutes. Oscar said one of 2 was out fir delivery then cancelled. About 45 minutes later both pieces were delivered. Their system is suspect

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

It was great. Smooth flight, comfortable, left on time and landed on time.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

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.

A couple ladies from the crew were so rude and nasty. Thought they were mad at having to be there especially if you asked a question. This will make me think twice next time if I book a flight with you.

Very friendly and efficient and smooth boarding. We were even way early arriving at my destination. Thank you.

Service in first class no longer exists on American Airlines .

This flight was late and did not meet the connecting flight.

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

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