$250 Cheap flight deals from St. Louis (STL) to Tri-Cities (TRI)

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Airfares from $250 One Way, Round Trip from St. Louis to Tri-Cities

Prices starting at for return flights and $250 for one-way flights to Tri-Cities were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

More About Flying To Tri-Cities from St. Louis

Route Information for Flights from St. Louis to Tri-Cities

Origin Airport IATA Code
STL
Destination Airport IATA Code
TRI
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

St. Louis to Tri-Cities

If you are looking online for bargain St. Louis to Tri-Cities flights, Orbitz is your ideal destination. We understand that vacations can be expensive and offer guaranteed low prices on our domestic and international tickets.

Orbitz Uses Cutting-Edge Mobile Tools

Orbitz may offer low cost St. Louis to Tri-Cities flights but this does not mean that we skimp on giving you the latest mobile apps. You don’t have to worry about checking your flight status as we send the info for your flights from St. Louis to Tri-Cities directly to your smartphone.

Fly Cheap and Earn Miles on Your St. Louis to Tri-Cities Flights

Frequent flyer miles and points are great—and even better when you earn them on cheap flights from St. Louis to Tri-Cities. With Orbitz, you can earn miles for your frequent flyer program on qualified flights. Enter your frequent flyer number when you book with us to get rewarded for your flight.

Orbitz Takes the Hassle Out Of Flying

We know that flying can be stressful, particularly if you are traveling with young children. That’s why we make sure you are aware of any changes or delays to your flights from St. Louis to Tri-Cities via your phone or email address. We can even inform family members too.

Orbitz Flights Fit Around Your Lifestyle

Orbitz understands that you don’t necessarily want to fly at 5:00 a.m—and that sometimes you do. This is why we allow you to find the best St. Louis to Tri-Cities flights at the times you want with ease.

Frequently asked questions

What is the shortest flight from St. Louis to Tri-Cities?
Keep that binge-watch you had planned for your hotel room, because the trip from Lambert Field to TRI can be as quick as 2 hours and 27 minutes.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won’t keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.