
Popular airlines from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ronald Reagan Washington National Airport (DCA)
- Delta
Delta
- American Airlines
American Airlines
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Cheap Flights from Tri-Cities to Washington (TRI-DCA)
Prices were available within the past 7 days and start at $135 for one-way flights and $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Alternative airports near Washington
Prices were available within the past 7 days. Prices and availability are subject to change.
Origin airport | Tri-Cities Regional |
Destination airport | Ronald Reagan Washington National |
Airlines serving | American Airlines, Delta |
Roundtrip price | $268 |
Distance | 335 mi |
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 September. 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 2025. You can also book with separate airlines for your outbound and return journeys, from $135 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.
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Top Routes from Tri-Cities
- Tri-Cities to Newark Liberty Intl. Airport (TRI - EWR)
- Tri-Cities to Los Angeles (TRI - LAX)
- Tri-Cities to Miami (TRI - MIA)
- Tri-Cities to Paris (TRI - CDG)
- Tri-Cities to New York (TRI - LGA)
- Tri-Cities to San Antonio (TRI - SAT)
- Tri-Cities to Boston (TRI - BOS)
- Tri-Cities to Honolulu (TRI - HNL)
- Tri-Cities to Salt Lake City (TRI - SLC)
- Tri-Cities to Denver (TRI - DEN)
- Tri-Cities to Sacramento (TRI - SMF)
- Tri-Cities to Dallas (TRI - DAL)
Top Routes to Washington
- Chicago to Washington (ORD - DCA)
- Phoenix to Washington (PHX - DCA)
- Los Angeles to Washington (LAX - DCA)
- Miami to Washington (MIA - DCA)
- Tampa to Washington (TPA - DCA)
- Detroit to Washington (DTW - DCA)
- Boston to Washington (BOS - DCA)
- Fort Lauderdale to Washington (FLL - DCA)
- Minneapolis to Washington (MSP - DCA)
- Denver to Washington (DEN - DCA)
- Seattle to Washington (SEA - DCA)
- New York to Washington (JFK - DCA)
Top Routes from Tri-Cities
- Delta Tri-Cities to Newark Liberty Intl. Airport
- American Airlines Tri-Cities to Los Angeles
- American Airlines Tri-Cities to Miami
- Delta Tri-Cities to New York
- American Airlines Tri-Cities to Boston
- American Airlines Tri-Cities to Honolulu
- Delta Tri-Cities to Denver
- Delta Tri-Cities to New York
- Delta Tri-Cities to Dallas
Top Routes to Washington
- American Airlines Chicago to Washington
- Frontier Airlines Phoenix to Washington
- Alaska Airlines Los Angeles to Washington
- American Airlines Miami to Washington
- JetBlue Airways Tampa to Washington
- American Airlines Detroit to Washington
- JetBlue Airways Boston to Washington
- JetBlue Airways Fort Lauderdale to Washington
- Delta Minneapolis to Washington
- Frontier Airlines Denver to Washington
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Airlines Operating
Washington
Baltimore
Nearby Airports
- Virginia Highlands Airport (VJI)
- Asheville Regional Airport (AVL)
- Pike County - Hatcher Field Airport (PVL)
- McGhee Tyson Airport (TYS)
- Greenville-Spartanburg Intl. Airport (GSP)
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