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$256+ Cheap flights from Pasco to St. Louis (PSC - STL)

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
PSC — STL
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheap flight deals from Pasco to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Pasco (PSC) to St. Louis (STL). 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 agosto 14, 2025.

Round-trip from

$274
(Delta)

One-way from

$256
(Mytrip)

Popular in

November

Cheapest in

September

Average price

$392
From Pasco Tri Cities to Lambert-St Louis
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One-way flight from Pasco Tri Cities to Lambert-St Louis
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Highest demand for flights based on searches. 20% potential increase in price ($115 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Pasco to St. Louis

Cheapest flights from Pasco to St. Louis
Explore the most affordable flight options available from Pasco to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

This Delta deal was found by Cheapflights users on 8/14. 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. 10/116:10 amPSC - STL
2 stops13h 13mDelta
mar. 10/142:29 pmSTL - PSC
2 stops10h 26mDelta
Deal found 8/14$274
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/111:07 pmPSC - STL
1 stop8h 56mAlaska Airlines
mar. 10/146:33 amSTL - PSC
1 stop16h 46mAlaska Airlines
Deal found 8/14$354
This United Airlines deal was found by Cheapflights users on 8/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2212:45 pmPSC - STL
1 stop6h 01mUnited Airlines
sáb. 10/2512:25 pmSTL - PSC
2 stops12h 50mUnited Airlines
Deal found 8/14$402
This Hawaiian Airlines deal was found by Cheapflights users on 8/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/291:05 pmPSC - STL
1 stop8h 54mHawaiian Airlines
mar. 9/26:00 amSTL - PSC
1 stop8h 28mHawaiian Airlines
Deal found 8/14$528
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/282:55 pmPSC - STL
1 stop7h 21mAmerican Airlines
lun. 9/16:14 pmSTL - PSC
1 stop7h 14mAmerican Airlines
Deal found 8/13$529
This Delta deal was found by Cheapflights users on 8/14. 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.
vie. 8/295:18 pmPSC - STL
1 stop5h 20mDelta
mar. 9/27:35 amSTL - PSC
2 stops11h 00mDelta
Deal found 8/14$567
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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. 8/288:45 amPSC - STL
2 stops13h 06mAlaska Airlines
lun. 9/16:00 amSTL - PSC
1 stop8h 28mAlaska Airlines
Deal found 8/13$696
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/298:45 amPSC - STL
2 stops12h 24mAlaska Airlines
mar. 9/210:08 amSTL - PSC
2 stops13h 07mAlaska Airlines
Deal found 8/14$701

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pasco to St. Louis 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 agosto 14, 2025.
Use the filters below to find and compare flights from Pasco to St. Louis that are best for you.

Fly from

Pasco

Fly to

St. Louis

Route

Depart

Return

Price

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

sáb. 10/11

6:10 am-9:23 pm

2 stops13h 13m

Lambert-St Louis

mar. 10/14

2:29 pm-10:55 pm

2 stops10h 26m

$274

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

sáb. 10/11

1:07 pm-12:03 am

1 stop8h 56m

Lambert-St Louis

mar. 10/14

6:33 am-9:19 pm

1 stop16h 46m

$354

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

mié. 10/22

3:52 pm-12:03 am

1 stop6h 11m

Lambert-St Louis

sáb. 10/25

3:57 pm-9:19 pm

1 stop7h 22m

$354

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

mié. 10/22

12:45 pm-8:46 pm

1 stop6h 01m

Lambert-St Louis

sáb. 10/25

12:25 pm-11:15 pm

2 stops12h 50m

$402

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

vie. 8/29

1:05 pm-11:59 pm

1 stop8h 54m

Lambert-St Louis

mar. 9/2

6:00 am-12:28 pm

1 stop8h 28m

$528

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

jue. 8/28

2:55 pm-12:16 am

1 stop7h 21m

Lambert-St Louis

lun. 9/1

6:14 pm-11:28 pm

1 stop7h 14m

$529

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

vie. 8/29

5:18 pm-12:38 am

1 stop5h 20m

Lambert-St Louis

mar. 9/2

7:35 am-4:35 pm

2 stops11h 00m

$567

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

jue. 8/28

8:45 am-11:51 pm

2 stops13h 06m

Lambert-St Louis

lun. 9/1

6:00 am-12:28 pm

1 stop8h 28m

$696

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

vie. 8/29

8:45 am-11:09 pm

2 stops12h 24m

Lambert-St Louis

mar. 9/2

10:08 am-9:15 pm

2 stops13h 07m

$701

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

mié. 8/27

10:07 am-1:32 pm

3 stops25h 25m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 12 results
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Best time to book a flight from Pasco to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Pasco 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 Pasco to St. Louis

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

Currently, August is the cheapest month in which you can book a flight from Pasco to St. Louis (average of $311). Flying from Pasco to St. Louis in March is currently the most expensive (average of $356). 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.

How much does it cost to fly round-trip from Pasco to St. Louis?

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated agosto 14, 2025.
See what other customers who have flown with Delta from Pasco to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

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

  • What is the cheapest airline to fly from Pasco to St. Louis round-trip?

    Currently priced at $306, Delta will fly you from Pasco to St. Louis and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Delta is currently priced 33% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pasco to St. Louis 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 Pasco to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Pasco to St. Louis (average of $311). Flying from Pasco to St. Louis in March is currently the most expensive (average of $356). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Farmington
Festus

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Top airline flying from Pasco to St. Louis

Discover the top airline that operate flights from Pasco to St. Louis. 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$306Average$426FlexibilityNo cancel feeOn-timeN/A

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