$140 Cheap Delta flights St. Louis (STL) to Pasco (PSC)

View $140 flight on Wed, Jul 30, 2025Opens in a new window

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$140 Cheap Delta flights St. Louis (STL) to Pasco (PSC)

Prices were available within the past 7 days and start at $140 for one-way flights and $261 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Aug 5 - Wed, Aug 6
STL
St. Louis
PSC
Pasco
$261 Roundtrip, found 2 days ago
$261
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Aug 5 from St. Louis to Pasco, returning Wed, Aug 6, priced at $261 found 2 days ago
Delta
Sat, Aug 9 - Sat, Aug 16
STL
St. Louis
PSC
Pasco
$266 Roundtrip, found 2 days ago
$266
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Aug 9 from St. Louis to Pasco, returning Sat, Aug 16, priced at $266 found 2 days ago
Delta
Tue, Jul 22 - Tue, Aug 12
STL
St. Louis
PSC
Pasco
$270 Roundtrip, found 2 days ago
$270
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jul 22 from St. Louis to Pasco, returning Tue, Aug 12, priced at $270 found 2 days ago
Delta
Wed, Jul 23 - Sat, Aug 9
STL
St. Louis
PSC
Pasco
$273 Roundtrip, found 2 days ago
$273
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Jul 23 from St. Louis to Pasco, returning Sat, Aug 9, priced at $273 found 2 days ago
Delta
Wed, Jul 30 - Tue, Aug 5
STL
St. Louis
PSC
Pasco
$290 Roundtrip, found 2 days ago
$290
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Jul 30 from St. Louis to Pasco, returning Tue, Aug 5, priced at $290 found 2 days ago
Delta
Tue, Oct 28 - Tue, Nov 4
STL
St. Louis
PSC
Pasco
$292 Roundtrip, found 4 days ago
$292
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Oct 28 from St. Louis to Pasco, returning Tue, Nov 4, priced at $292 found 4 days ago
Flights from St. Louis (STL) to Pasco (PSC)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Tri-Cities
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Popular airline
Alaska Airlines
Distance
1543 mi

Frequently asked questions

How much is a Delta Air Lines flight from Lambert-St. Louis Intl. Airport (STL) to Tri-Cities Airport (PSC)?
Use the "Price (lowest to highest)" filter on Expedia to find cheap Delta Air Lines round-trip flights from $261 from STL to PSC. Affordable one-way fares from $140 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from STL to PSC with Delta Air Lines?
Browse for round-trip or one-way flights to Pasco in January or February. You could find lower fares with Delta Air Lines during these off-peak times.
What is the cheapest time to book flights from Lambert-St. Louis Intl. Airport (STL) to Tri-Cities Airport (PSC) with Delta Air Lines?
Search for cheap Delta Air Lines flights from Lambert-St. Louis Intl. Airport (STL) to Tri-Cities Airport (PSC) one to three months prior to your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and itinerary, the best day of the week to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Delta Air Lines fly nonstop from Lambert-St. Louis Intl. Airport (STL) to Tri-Cities Airport (PSC)?
To see if there's a direct route from STL to PSC with Delta Air Lines or any other carriers, use our "Nonstop" filter when browsing for flights.
What is the earliest Delta Air Lines flight from STL to PSC?
To find the earliest departure from STL to PSC with Delta Air Lines, filter your results by "Morning" and "Early Morning." Booking an early flight generally means you'll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Delta Air Lines fly into in Pasco?
Delta Air Lines flights from Lambert-St. Louis Intl. Airport (STL) to Pasco come in to land at Tri-Cities Airport (PSC). This is the main gateway here.
Why fly with Delta Air Lines from STL to PSC?
Traveling from STL to PSC with Delta Air Lines comes with a host of benefits, such as an excellent in-flight experience and a rewarding loyalty program. Plus, when you book through Expedia, One Key™ members can collect OneKeyCash™* to spend on select future travel purchases. That's on top of the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Delta Air Lines flight from Lambert-St. Louis Intl. Airport (STL) to Tri-Cities Airport (PSC)?
You can usually cancel or change your flight, although there may be additional charges if you booked over 24 hours ago. Want to keep your options open? Apply the "No cancel fee" and "Changes included" filters to find flights that won't charge extra if you have to alter your plans. To update your booking, visit "Trips," select your flight and click on "Manage Booking" for more information.

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