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$41 Cheap Flights from Tri-Cities (TRI) to Washington (IAD)

View $41 flight on Mon, Aug 24, 2026Opens in a new window

Popular airlines from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Tri-Cities to Washington (TRI-IAD)

Prices were available within the past 7 days and start at $41 for one-way flights and $82 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Breeze Airways
Fri, Aug 28 - Fri, Sep 4
TRI
Tri-Cities
IAD
Washington
$82 Roundtrip, found 3 hours ago
$82
Roundtrip
found 3 hours ago
Select Breeze Airways flight, departing Fri, Aug 28 from Tri-Cities to Washington, returning Fri, Sep 4, priced at $82 found 3 hours ago
Breeze Airways
Fri, Aug 21 - Mon, Aug 24
TRI
Tri-Cities
IAD
Washington
$87 Roundtrip, found 6 hours ago
$87
Roundtrip
found 6 hours ago
Select Breeze Airways flight, departing Fri, Aug 21 from Tri-Cities to Washington, returning Mon, Aug 24, priced at $87 found 6 hours ago
Breeze Airways
Fri, Aug 21 - Mon, Aug 24
TRI
Tri-Cities
IAD
Washington
$92 Roundtrip, found 6 hours ago
$92
Roundtrip
found 6 hours ago
Select Breeze Airways flight, departing Fri, Aug 21 from Tri-Cities to Washington, returning Mon, Aug 24, priced at $92 found 6 hours ago
Breeze Airways
Fri, Aug 21 - Mon, Aug 24
TRI
Tri-Cities
IAD
Washington
$97 Roundtrip, found 6 hours ago
$97
Roundtrip
found 6 hours ago
Select Breeze Airways flight, departing Fri, Aug 21 from Tri-Cities to Washington, returning Mon, Aug 24, priced at $97 found 6 hours ago
Breeze Airways
Fri, Nov 13 - Mon, Nov 16
TRI
Tri-Cities
IAD
Washington
$102 Roundtrip, found 1 day ago
$102
Roundtrip
found 1 day ago
Select Breeze Airways flight, departing Fri, Nov 13 from Tri-Cities to Washington, returning Mon, Nov 16, priced at $102 found 1 day ago
Breeze Airways
Mon, Aug 17 - Mon, Aug 24
TRI
Tri-Cities
IAD
Washington
$107 Roundtrip, found 6 hours ago
$107
Roundtrip
found 6 hours ago
Select Breeze Airways flight, departing Mon, Aug 17 from Tri-Cities to Washington, returning Mon, Aug 24, priced at $107 found 6 hours ago
Breeze Airways
Mon, Aug 17 - Mon, Aug 24
TRI
Tri-Cities
IAD
Washington
$112 Roundtrip, found 6 hours ago
$112
Roundtrip
found 6 hours ago
Select Breeze Airways flight, departing Mon, Aug 17 from Tri-Cities to Washington, returning Mon, Aug 24, priced at $112 found 6 hours ago
Breeze Airways
Fri, Sep 4 - Mon, Sep 14
TRI
Tri-Cities
IAD
Washington
$112 Roundtrip, found 1 day ago
$112
Roundtrip
found 1 day ago
Select Breeze Airways flight, departing Fri, Sep 4 from Tri-Cities to Washington, returning Mon, Sep 14, priced at $112 found 1 day ago
Delta
Thu, Sep 10 - Mon, Sep 14
TRI
Tri-Cities
IAD
Washington
$238 Roundtrip, found 8 hours ago
$238
Roundtrip
found 8 hours ago
Select Delta flight, departing Thu, Sep 10 from Tri-Cities to Washington, returning Mon, Sep 14, priced at $238 found 8 hours ago
American Airlines
Thu, Sep 10 - Mon, Sep 14
TRI
Tri-Cities
IAD
Washington
$273 Roundtrip, found 8 hours ago
$273
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Thu, Sep 10 from Tri-Cities to Washington, returning Mon, Sep 14, priced at $273 found 8 hours ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $314
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $314

What you need to know for your flight from Tri-Cities Regional to Washington Dulles Intl.

Tri-Cities (TRI) to Washington (IAD) at a glance

Travel from Tri-Cities Regional Airport (TRI) to Washington Dulles International Airport (IAD) with a selection of airlines offering this domestic short-haul route. You can choose between full-service and budget carriers to find the flight that aligns with your schedule, budget, and travel needs as you prepare to explore the iconic attractions and neighborhoods of Washington. Check out the essential details for your flights from TRI to IAD.

  • Fastest flight duration: around 1h 30m non-stop
  • Route distance: roughly 300 miles (485 km)
  • Flights per week: around 7 departures on average
  • Typical fares (one-way): economy tickets often range from $30–$415, depending on seasonality and how far ahead you book

Flights from Tri-Cities Regional Airport (TRI) to Washington Dulles International Airport (IAD)

According to recent traveler bookings, the top airlines flying from Tri-Cities to Washington are often favored for their one-stop and non-stop options. Common layover locations include Hartsfield-Jackson Atlanta International Airport (ATL), with a layover time of about 1 hour and 45 minutes, and Charlotte-Douglas International Airport (CLT), which has a layover of approximately 1 hour and 15 minutes. This variety allows you to balance price, total travel time, and cabin class for the ideal travel itinerary.

  • Delta: As a full-service airline, Delta provides one-stop flights with one-way ticket prices generally falling between $120 and $520. This carrier is responsible for about 34% of departures on this route, featuring an in-flight duration of 2 hours and 45 minutes, culminating in a total travel time of approximately 4 hours and 15 minutes (including layover).
  • Breeze: Breeze operates as a budget airline, specializing in non-stop flights, with one-way fares usually ranging from $30 to $140. This carrier represents around 33% of departures on this route, delivering a swift total journey time of just 1 hour and 30 minutes.
  • American Airlines: Another full-service carrier, American Airlines offers one-stop services with one-way fares typically between $135 and $410. This airline accounts for about 33% of departures on the route, featuring an in-flight duration of 2 hours and 45 minutes, leading to a total travel time of approximately 4 hours and 15 minutes (including layover).

Alternative route from Tri-Cities (TRI) to Washington (IAD)

  • Tri-Cities to Washington (TRI-DCA): Ronald Reagan Washington National Airport (DCA) is located approximately 23 miles from Washington Dulles International Airport (IAD). On this route, one-way economy fares generally range from $135 to $575, influenced by the season and the timing of your booking. Typically, travelers will find one-stop options available, with common layover points at Charlotte-Douglas International Airport (CLT) and Hartsfield-Jackson Atlanta International Airport (ATL). Major airlines servicing this route include American Airlines and Delta.

How to find the best prices for flights from Tri-Cities (TRI) to Washington (IAD)

Getting some of the best deals on flights from Tri-Cities to Washington is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are generally available when booking 2-8 weeks in advance, although most travelers tend to book within 2 weeks. Afternoon departures between 12 PM and 6 PM often provide lower prices and are the most popular flight times. Additionally, flying on Friday tends to offer both cheaper rates and is the busiest travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Washington Dulles International Airport from Tri-Cities Regional Airport

Washington welcomes travelers from Tri-Cities with a range of transport options based on price, convenience, and proximity. Washington city center is approximately a 40-minute drive (covering about 29 miles) from Washington Dulles International Airport, depending on traffic. Here's how to reach Washington efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Washington, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Washington Dulles International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Washington Dulles International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Washington Dulles International Airport, the Washington Dulles International Airport Metrorail Station, a metro station, is conveniently located just 0.2 miles away on foot, providing easy access to the metro system.

Frequently asked questions

How much does a flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.) cost?
You can find cheap one-way flights from $41 and cheap return flights from $82 Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.) with Expedia. One-way flights usually range from $379 to $951, and return flights typically cost between $308 and $1272. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
The cheapest month to fly from TRI to IAD is August when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
Enter TRI to IAD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
American Airlines is one of the cheapest airlines offering connecting flights from Tri-Cities Regional (TRI) to Washington Dulles Intl. (IAD), with round-trip tickets starting from around $268. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
The best airline to fly with from Tri-Cities, TN (TRI) to Washington, DC (IAD) will differ from traveler to traveler. If you like to fly early, MX offers early morning flights. If price is the most important factor, MX typically offers the lowest fares. Delta offers the most daily flights from TRI to IAD, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
There are approximately 1 nonstop flights per day from Tri-Cities Regional (TRI) to Washington Dulles Intl. (IAD). For more options, look at flights that include layovers.
What is the earliest flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Tri-Cities Regional Airport (TRI) to Washington Dulles International Airport (IAD) usually departs at around 5:00 AM local time, operated by American Airlines. This seasonal service is available in November, making it a convenient option for early travelers heading to the nation's capital. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
For flights from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.), the most popular departure times are also in the early morning, from 6am to 9am. About 30% of passengers choose this time window. Many major carriers, including Delta and American Airlines, operate flights during this time. This timing is popular because it allows you to make the most of your day in Washington, DC.
How long does it take to fly from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
A nonstop flight from TRI to IAD typically takes around 1 hour 30 minutes, covering approximately 320 miles. Connecting flights on this route usually add 3 hours 50 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
First class seats are offered on the TRI to IAD route with Delta Air Lines.
How do I earn miles on a Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington from Tri-Cities Regional (TRI)?
When traveling from Tri-Cities Regional (TRI) to Washington, you can fly into Washington Dulles Intl. (IAD) and Ronald Reagan Washington National (DCA). Some flights may connect through major hubs like Hartsfield-Jackson Atlanta Intl. (ATL) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.) Fairfax County Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Tri-Cities, TN (TRI-Tri-Cities Regional) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Tri-Cities Regional
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Breeze Airways, Delta
Roundtrip price
$81
Distance
320 mi
Average flight time
1 hour 25 mins

Book with confidence

Tri-Cities to Washington Flights

The cheapest times to fly from Tri-Cities to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Tri-Cities to Washington are during the month of August. You can find some of the cheapest flights from Tri-Cities to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Tri-Cities to Washington

Sunday is one of the best days to book for cheap flights from Tri-Cities to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Tri-Cities to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Tri-Cities to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $41 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Tri-Cities to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Tri-Cities to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Tri-Cities to Washington Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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