Cheap flight tickets from Tri-Cities to Houston

Compare Tri-Cities to Houston flight deals

Find the cheapest month or even day of the year to fly to Houston

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Flight deals from Tri-Cities to Houston

Looking for a cheap last-minute deal or the best return flight from Tri-Cities to Houston? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Tri-Cities to Houston

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Tri-Cities to Houston flights are currently cheapest in August.

Kingsport to Houston: Flight information

The things to know before you go.
Cheapest flight foundRM897
Cheapest month to flyAugust

Finding cheap flights from Tri-Cities to Houston: Frequently asked questions

There are 4 airports in Houston: Houston Hobby, Houston George Bush Intercntl., Houston Ellington Field, and Galveston.
The best price we found for a return flight from Tri-Cities to Houston is RM897. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Tri-Cities to Houston. But we found flights with one or more stops from RM897.
As of February 2026, there are no flights flying from Tri-Cities to Houston.
The cheapest month to fly from Tri-Cities to Houston is usually August.
If you're flying from Tri-Cities Airport, the cheapest airport near Houston is Houston Hobby – which is 15.5 km away from the centre of Houston. We've found flights into this airport from RM897.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Tri-Cities Airport to Houston on Wednesday, 26 August 2026.
No airlines currently offer direct flights between Tri-Cities Airport and Houston. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Houston but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Houston is around 40 days in advance, so don’t leave your flight to the last minute.
In February, the average temperature is usually around 13°C. August is typically the warmest month in Houston, when it usually averages around 34°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 6°C. The rainiest month is June.
Currently, Delta offers the cheapest flight tickets to Houston.

Travelling from Tri-Cities Regional Airport (TRI) to Houston: what you need to know

  • Tri-Cities Regional Airport is located in Kingsport. Following the UTC-5 timezone, Houston is one hour behind Kingsport.

  • For hassle-free travel, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This leaves you with plenty of time to board your TRI to Houston flight.

  • Delays at security and check-in are likely if you're heading away during high season, so allow some extra breathing room. A good rule for peak times? Arrive up to four hours ahead for international flights and two hours for domestic departures.

  • To get to TRI from central Kingsport, it takes about 25 minutes if you're going by car. It's roughly 16 kilometres from the airport to the city centre.

  • Looking for a hotel close to TRI? If you're catching an early flight from Tri-Cities Regional Airport to Houston, these stays put the terminal practically at your doorstep:

  • When it comes to the on-time performance of Tri-Cities Regional Airport, 79.37% of flights complete their journey on time.

  • TRI's address is 2525 Tennessee 75.

How to find the cheapest flights from Tri-Cities Regional Airport (TRI) to Houston

  • The lowest price we've found for a one-way Tri-Cities Regional Airport to Houston flight is RM969. The cheapest price for a return flight is RM897. Bear in mind fares can change due to demand at the time of booking.

  • Don't wait until the last minute. You're more likely to pick up cheap flights from TRI to Houston if you book in advance. Airlines often offer some fantastic early bird discounts.

  • Landing cheap tickets from Tri-Cities Regional Airport to Houston is more likely if you're flexible with your dates. Use the 'Whole month' search tool to access the lowest prices throughout the month and score an epic deal.

  • You don't need to check in daily to see if fares have dropped when you create a Price Alert. We'll let you know as soon as there's an even better deal on cheap flights from TRI to Houston.

  • Save money on your flight from Tri-Cities Regional Airport to Houston with the help of our filters. Select your ideal departure time, duration and airlines, then sort the results by 'Cheapest' to see the best deals.

Airports in Houston

George Bush Intercontinental Airport (IAH)

William P. Hobby Airport (HOU)

  • Central Houston is around 19 kilometres from William P. Hobby Airport (HOU). After your flight from Tri-Cities Regional Airport to Houston has hit the runway and you've made your way to arrivals, the drive should take about 20 minutes.

  • Public transport will get you there in around 1 hour 40 minutes.

  • There are some great places to rest your head close to HOU. Settle in and get cosy after your TRI to Houston flight at any of these well-located options:

  • Forget about public transport schedules or long cab lines. Pick up a William P. Hobby Airport rental car and let the journey unfold your way. Compare offers from Easirent, Dollar and Thrifty.

  • Get the lowest price by securing your ride from HOU four weeks in advance. You can also expect to have a wider selection of vehicles.

  • You can find William P. Hobby Airport at 7800 Airport Boulevard.

Best time to go to Houston

  • Carefully consider your travel dates before securing your flight from Tri-Cities Regional Airport to Houston. The city comes alive in peak season, but rates are typically higher and attractions can get busy. Visit Houston in low season if you want a more relaxed vibe.

  • The warmest month in Houston is August, with temperatures ranging between 24ºC (75ºF) and 40ºC (104ºF). Lock in your Tri-Cities Regional Airport to Houston flight ticket then if that's your definition of good weather.

  • Search for cheap tickets from TRI to Houston in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 5ºC (41ºF) and 19ºC (66ºF) on average.

More about Houston

Explore more of United States

  • San Antonio is just one of the many cities in United States waiting to be discovered once you've seen the sights of Houston. Around 306 kilometres away to the west, its best attractions include The San Antonio River Walk, San Antonio Missions National Historical Park and San Fernando Cathedral.

  • Around 370 kilometres north of Houston, Dallas is another favourite stop in United States. Get a taste of what this destination has to offer at Dallas Arboretum and Botanical Gardens, Perot Museum of Nature and Science and Dallas Museum of Art.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.