$32 Cheap Flights from Washington (IAD) to Tri-Cities (TRI)

View $32 flight on Mon, Apr 6, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $32 for one-way flights and $64 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Breeze Airways
Fri, Jun 5 - Mon, Jun 8
IAD
Washington
TRI
Tri-Cities
$64 Roundtrip, just found
$64
Roundtrip
just found
Select Breeze Airways flight, departing Fri, Jun 5 from Washington to Tri-Cities, returning Mon, Jun 8, priced at $64 just found
Breeze Airways
Fri, May 1 - Fri, May 8
IAD
Washington
TRI
Tri-Cities
$68 Roundtrip, found 23 hours ago
$68
Roundtrip
found 23 hours ago
Select Breeze Airways flight, departing Fri, May 1 from Washington to Tri-Cities, returning Fri, May 8, priced at $68 found 23 hours ago
Breeze Airways
Fri, Apr 17 - Mon, Apr 20
IAD
Washington
TRI
Tri-Cities
$69 Roundtrip, found 8 hours ago
$69
Roundtrip
found 8 hours ago
Select Breeze Airways flight, departing Fri, Apr 17 from Washington to Tri-Cities, returning Mon, Apr 20, priced at $69 found 8 hours ago
Breeze Airways
Mon, Aug 24 - Mon, Aug 31
IAD
Washington
TRI
Tri-Cities
$72 Roundtrip, found 5 days ago
$72
Roundtrip
found 5 days ago
Select Breeze Airways flight, departing Mon, Aug 24 from Washington to Tri-Cities, returning Mon, Aug 31, priced at $72 found 5 days ago
Breeze Airways
Fri, Jun 12 - Mon, Jun 15
IAD
Washington
TRI
Tri-Cities
$73 Roundtrip, found 3 hours ago
$73
Roundtrip
found 3 hours ago
Select Breeze Airways flight, departing Fri, Jun 12 from Washington to Tri-Cities, returning Mon, Jun 15, priced at $73 found 3 hours ago
Breeze Airways
Fri, Apr 17 - Mon, Apr 20
IAD
Washington
TRI
Tri-Cities
$74 Roundtrip, found 8 hours ago
$74
Roundtrip
found 8 hours ago
Select Breeze Airways flight, departing Fri, Apr 17 from Washington to Tri-Cities, returning Mon, Apr 20, priced at $74 found 8 hours ago
Breeze Airways
Fri, Jun 12 - Mon, Jun 15
IAD
Washington
TRI
Tri-Cities
$77 Roundtrip, found 3 days ago
$77
Roundtrip
found 3 days ago
Select Breeze Airways flight, departing Fri, Jun 12 from Washington to Tri-Cities, returning Mon, Jun 15, priced at $77 found 3 days ago
American Airlines
Fri, Apr 10 - Mon, Apr 13
IAD
Washington
TRI
Tri-Cities
$269 Roundtrip, found 2 days ago
$269
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Apr 10 from Washington to Tri-Cities, returning Mon, Apr 13, priced at $269 found 2 days ago
Delta
Sun, Aug 16 - Mon, Aug 24
IAD
Washington
TRI
Tri-Cities
$289 Roundtrip, found 21 hours ago
$289
Roundtrip
found 21 hours ago
Select Delta flight, departing Sun, Aug 16 from Washington to Tri-Cities, returning Mon, Aug 24, priced at $289 found 21 hours ago
United
Mon, Jan 25 - Sun, Jan 31
IAD
Washington
TRI
Tri-Cities
$289 Roundtrip, found 23 hours ago
$289
Roundtrip
found 23 hours ago
Select United flight, departing Mon, Jan 25 from Washington to Tri-Cities, returning Sun, Jan 31, priced at $289 found 23 hours ago

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Frequently asked questions

How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) cost?
You can find cheap one-way flights from $32 and cheap return flights from $64 Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) with Expedia. One-way flights usually range from $224 to $762, and return flights typically cost between $370 and $1626. 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 Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) 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 Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
The cheapest month to fly from IAD to TRI is June 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 Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
Enter IAD to TRI and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
To find a cheap flight from Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional), 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 Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
The best airline to fly with from Washington, DC (IAD) to Tri-Cities, TN (TRI) 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. United offers the most daily flights from IAD to TRI, 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 Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
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 Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
There are approximately 1 nonstop flights per day from Washington Dulles Intl. (IAD) to Tri-Cities Regional (TRI). For more options, look at flights that include layovers.
What is the earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
The earliest flight from Washington Dulles International Airport (IAD) to Tri-Cities Regional Airport (TRI) usually departs at around 5:00 AM, operated by American Airlines. This seasonal service is available in February, giving you an early start to explore the Tri-Cities area. 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 Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
The most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) are in the early morning, from 6am to 9am. This accounts for around 36% of total traffic. Many travelers prefer this time because it allows them to arrive in Tri-Cities with a full day ahead for meetings or leisure activities.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
Flying nonstop from IAD to TRI takes around 1 hour 30 minutes, with the route covering approximately 320 miles. Flights with a layover typically take 3 hours 30 minutes longer than direct options. 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 Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
First class seats are offered on the IAD to TRI route with Delta Air Lines and American Airlines.
How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) 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 Tri-Cities from Washington Dulles Intl. (IAD)?
If you're planning to travel to Tri-Cities from Washington Dulles Intl. (IAD), you can fly into Tri-Cities Regional (TRI) Some flights may connect through major hubs like Indianapolis Intl. (IND), O'Hare Intl. (ORD), Charleston Intl. (CHS) before reaching Tri-Cities. 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 Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) 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 Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) flight and hotel package?
Securing a Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) flight and hotel package 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 Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
If you booked your Washington, DC (IAD-Washington Dulles Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional) 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
Washington Dulles Intl.
Destination airport
Tri-Cities Regional
Airlines serving
American Airlines, Breeze Airways, Delta, United
Roundtrip price
$63
Distance
320 mi
Average flight time
1 hour 30 mins

Book with confidence

Washington to Tri-Cities Flights

The cheapest times to fly from Washington to Tri-Cities

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 Washington to Tri-Cities are during the month of June. You can find some of the cheapest flights from Washington to Tri-Cities with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Washington to Tri-Cities: 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 Washington to Tri-Cities

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 Washington to Tri-Cities in 2026. You can also book with separate airlines for your outbound and return journeys, from $32 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 Washington to Tri-Cities 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 Washington to Tri-Cities 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.

 

Washington to Tri-Cities Flights

*Flight schedules are subject to change.

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*Available to One Key members.