Question 1

How much does a flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities) cost?

Accepted Answer

You can find cheap one-way flights from $179 and cheap return flights from $357 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities) with Expedia. One-way flights generally range between $194 and $1055, and roundtrip flights usually range from $445 to $1674. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities) ticket fares go up or down.

*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

Question 2

What is the cheapest month to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities)?

Accepted Answer

February is the cheapest month to fly from St. Louis to Pasco, with average round-trip fares around $393. This fare is about 22% lower than the average price throughout the year, as winter travel tends to see less demand. Other affordable months to fly from St. Louis to Pasco include April and September.

*Averages based on flights available on Expedia in the last year.

Question 3

Which airlines fly direct from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities)?

Accepted Answer

Enter STL to PSC and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

Question 4

What is the cheapest airline that flies from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities)?

Accepted Answer

Delta is one of the cheapest airlines offering connecting flights from Lambert-St. Louis Intl. (STL) to Tri-Cities (PSC) with return tickets starting from around $278.19. This flight includes a layover in Detroit Metropolitan Wayne County (DTW). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

*Prices based on flights available on Expedia in the last year.

Question 5

How do I find cheap flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities)?

Accepted Answer

To find a cheap flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

Question 6

What is the best time to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities)?

Accepted Answer

When flying from St. Louis to Pasco, February and April stand out as the best months. With average return flight prices around $393, these months provide a good balance of affordability and travel experience. February is often less crowded, while April brings springtime blooms to the region.

*Prices based on flights available on Expedia in the last year.

Question 7

What is the earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities)?

Accepted Answer

The earliest flight from Lambert-St. Louis International Airport (STL) to Tri-Cities Airport (PSC) usually departs at around 5:00 AM, operated by American Airlines. This seasonal service is available in May, and an early departure can help you enjoy a full day in Pasco. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

Question 8

What are the most popular departure times for flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities)?

Accepted Answer

The most popular departure times for flights from St. Louis (STL) to Pasco (PSC) are in the early morning, from 6am to 9am. This time window accounts for around 36% of total traffic. Many major carriers, including American Airlines and Delta, offer flights during this period. Many travelers prefer this timing as it allows them to start their day early and maximize their time at their destination.

Question 9

How long does it take to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities)?

Accepted Answer

Flying from STL to PSC with a connection usually takes about 6 hours 30 minutes, traveling roughly 1,544 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

Question 10

Can you fly business or first class from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities)?

Accepted Answer

First class seats are offered on the STL to PSC route. First class cabins are available on:

American Airlines
Delta Air Lines
United Airlines

Question 11

How do I earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities) flight with Expedia?

Accepted Answer

It's easy to earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

Question 12

What airports do you fly into for Pasco from Lambert-St. Louis Intl. (STL)?

Accepted Answer

From Lambert-St. Louis Intl. (STL), you can fly into Tri-Cities (PSC) to reach Pasco. Some flights may connect through major hubs like O'Hare Intl. (ORD), Dallas-Fort Worth Intl. (DFW), Denver Intl. (DEN) before reaching Pasco. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Question 13

Is it cheaper to buy a plane ticket from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities) at the last minute?

Accepted Answer

Typically, booking a last minute flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Question 14

Is it cheaper to book a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities) flight and hotel package?

Accepted Answer

Securing a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

Question 15

Can I cancel or change the date of my flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities)?

Accepted Answer

If you booked your St. Louis, MO (STL-Lambert-St. Louis Intl.) to Pasco, WA (PSC-Tri-Cities) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Origin airport	Lambert-St. Louis Intl.
Destination airport	Tri-Cities
Airlines serving	Alaska Airlines, American Airlines, Delta, United
Roundtrip price	$356
Distance	1543 mi

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$179 Cheap Flights from St. Louis (STL) to Pasco (PSC)