Which airline flies the most flights to TRI? The top airline carrier flying out of Tri Cities Regional is Delta Air Lines and they fly over 458 flights every month.
- Delta - Bristol (TRI) to Chicago (ORD) on 11/21 leaving at 4:45 am and returning on 11/24 at 4:20 pm for only $274 per person.*
*Prices vary and will be updated when you view current flight availability results. Deals displayed here are based on flight pricing and availability as of 11/16/2017 and may change as you get closer to the actual flight date. Deals displayed whose dates are in the past are no longer valid.