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$244+ Cheap flights from St. Louis to Pasco (STL - PSC)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PSC
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheap flight deals from St. Louis to Pasco

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Pasco (PSC). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 17, 2025.

Round-trip from

$422
(Alaska Airlines)

One-way from

$244
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$441
From Lambert-St Louis to Pasco Tri Cities
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One-way flight from Lambert-St Louis to Pasco Tri Cities
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Highest demand for flights based on searches. 10% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Pasco

Cheapest flights from St. Louis to Pasco
Explore the most affordable flight options available from St. Louis to Pasco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 17, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/185:26 pmSTL - PSC
1 stop8h 51mAlaska Airlines
dom. 1/116:00 pmPSC - STL
1 stop17h 52mAlaska Airlines
Deal found 9/17$422
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/247:47 pmSTL - PSC
1 stop5h 52mDelta
lun. 12/15:03 pmPSC - STL
1 stop5h 43mDelta
Deal found 9/15$453
This Hawaiian Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/43:57 pmSTL - PSC
1 stop7h 22mHawaiian Airlines
lun. 10/61:07 pmPSC - STL
1 stop8h 56mHawaiian Airlines
Deal found 9/16$548
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/41:26 pmSTL - PSC
2 stops11h 02mDelta
lun. 10/65:13 pmPSC - STL
1 stop5h 11mDelta
Deal found 9/16$554
This Hawaiian Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/273:35 pmSTL - PSC
1 stop7h 40mHawaiian Airlines
mar. 9/306:00 amPSC - STL
1 stop6h 39mHawaiian Airlines
Deal found 9/16$631
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/277:10 amSTL - PSC
2 stops11h 35mDelta
mar. 9/306:45 amPSC - STL
1 stop5h 59mDelta
Deal found 9/14$671

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Pasco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 17, 2025.
Use the filters below to find and compare flights from St. Louis to Pasco that are best for you.

Fly from

St. Louis

Fly to

Pasco

Route

Depart

Return

Price

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

lun. 11/24

7:47 pm-11:39 pm

1 stop5h 52m

Pasco Tri Cities

lun. 12/1

5:03 pm-12:46 am

1 stop5h 43m

$453

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

sáb. 10/4

3:57 pm-9:19 pm

1 stop7h 22m

Pasco Tri Cities

lun. 10/6

1:07 pm-12:03 am

1 stop8h 56m

$548

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

sáb. 9/27

3:35 pm-9:15 pm

1 stop7h 40m

Pasco Tri Cities

mar. 9/30

6:00 am-2:39 pm

1 stop6h 39m

$631

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

sáb. 9/27

7:10 am-4:45 pm

2 stops11h 35m

Pasco Tri Cities

mar. 9/30

6:45 am-2:44 pm

1 stop5h 59m

$671

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

jue. 9/25

10:49 am-1:35 pm

2 stops28h 46m

$248

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

dom. 9/21

4:00 pm-8:52 am

2 stops18h 52m

$273

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

mié. 10/1

6:00 am-12:28 pm

1 stop8h 28m

$274

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

vie. 10/3

6:30 pm-12:15 am

1 stop7h 45m

$274

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

vie. 10/3

1:26 pm-11:28 pm

2 stops12h 02m

$280

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from St. Louis to Pasco

Have a flexible travel schedule? Discover the best time to fly to Pasco from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Pasco

What is the cheapest month to book a flight from St. Louis to Pasco?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Pasco (average of $349). Flying from St. Louis to Pasco in June is currently the most expensive (average of $438). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to PSC?

Find hourly flight availability from St. Louis to Pasco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 17, 2025.

It’s optimal to fly from St. Louis to Pasco in the morning. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight in the evening.

Reviews of airlines servicing Pasco

Get insights into the airlines that provide service to Pasco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pasco. Reviews last updated septiembre 17, 2025.
Get a feel of what it's like to fly with Delta and United Airlines from St. Louis to Pasco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Pasco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Pasco?

    Delta and Hawaiian Airlines can get you from St. Louis to Pasco in just under 5h 52m. Your travel time can differ by up to 1h 30m. There are 1542 mi between St. Louis and Pasco. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from St. Louis to Pasco round-trip?

    Cheapflights users have booked flights from St. Louis to Pasco round-trip from $323. Another airline that can offer you cheap pricing is Delta. United Airlines is 31% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from St. Louis to Pasco that include hotel bookings?

    Yes. In addition to deals on St. Louis to Pasco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Pasco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Pasco.

  • Can I find deals for business class flights from St. Louis to Pasco?

    Yes. Cheapflights offers flight deals from St. Louis to Pasco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Pasco?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Pasco (average of $349). Flying from St. Louis to Pasco in June is currently the most expensive (average of $438). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Pasco?

Book flights to Pasco if you plan to visit one of these locations
Kennewick
Richland

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from St. Louis to Pasco

Discover the top 2 airlines that operate flights from St. Louis to Pasco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$323Average$416FlexibilityNo cancel feeOn-time69%
DeltaCheapest$352Average$476FlexibilityNo cancel feeOn-timeN/A

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