Cheap Flights From Lambert-St. Louis Intl. (STL) To Tri-Cities (PSC)

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Cheapest Flights from St. Louis (STL) to Pasco (PSC)

The cheapest flights to Tri-Cities found within the past 7 days were CA $616 round trip and one way. Prices and availability subject to change. Additional terms may apply.

Sat, Nov 8 - Sat, Nov 15
STL
St. Louis
PSC
Pasco
CA $616 Roundtrip, found 1 day ago
CA $616
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Nov 8 from St. Louis to Pasco, returning Sat, Nov 15, priced at CA $616 found 1 day ago
Sat, Nov 8 - Sat, Nov 15
STL
St. Louis
PSC
Pasco
CA $617 Roundtrip, found 1 day ago
CA $617
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Nov 8 from St. Louis to Pasco, returning Sat, Nov 15, priced at CA $617 found 1 day ago

Frequently asked questions

Are there direct flights from STL to Tri-Cities Airport (PSC)?
Make a note of your connecting gate, because there aren't any direct flights on the St. Louis Lambert International Airport to Tri-Cities Airport route. Delta, Alaska Airlines and United Airlines are among the airlines that will fly you to Franklin County with just one stopover.
What airlines fly from STL to Tri-Cities Airport (PSC)?
With no direct flights available, it's a wise idea to plan well in advance when traveling between Lambert-St. Louis Intl. Airport (STL) and Tri-Cities Airport. Find a convenient route with the fewest connections and save yourself some time.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from St. Louis (STL)

Travelers at STL love to visit these top cities. Roam to the top destinations from St. Louis (STL) today with the cheap prices from Travelocity!

Popular Flight Routes from Pasco (PSC)

Travelers at PSC love to visit these top cities. Roam to the top destinations from Pasco(PSC) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.