St. Louis

$329+ Cheap flights from Pasco to St. Louis (PSC - STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
PSC — STL
Jul 19 — Jul 261
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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 July 14, 2025.

Round-trip from

$329
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$498
From Pasco Tri Cities to Lambert-St Louis
Highest demand for flights based on searches. 18% potential increase in price ($108 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
Average for round-trip flights in July 2025

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 July 14, 2025.

This American Airlines deal was found by Cheapflights users on 7/12. 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.
Tue 8/122:29 pmPSC - STL
1 stop7h 47mAmerican Airlines
Wed 8/207:53 amSTL - PSC
1 stop7h 50mAmerican Airlines
Deal found 7/12$329
This Delta deal was found by Cheapflights users on 7/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/125:18 pmPSC - STL
1 stop5h 20mDelta
Wed 8/202:25 pmSTL - PSC
2 stops10h 20mDelta
Deal found 7/13$334
This Hawaiian Airlines deal was found by Cheapflights users on 7/12. 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.
Wed 8/66:00 amPSC - STL
1 stop6h 26mHawaiian Airlines
Wed 8/67:32 pmSTL - PSC
1 stop6h 41mHawaiian Airlines
Deal found 7/12$409
This Alaska Airlines deal was found by Cheapflights users on 7/14. 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.
Tue 8/1211:29 amPSC - STL
2 stops9h 40mAlaska Airlines
Fri 8/157:32 pmSTL - PSC
1 stop17h 20mAlaska Airlines
Deal found 7/14$477
This United Airlines deal was found by Cheapflights users on 7/12. 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.
Sun 7/136:38 amPSC - STL
2 stops13h 12mUnited Airlines
Sat 7/194:45 pmSTL - PSC
1 stop6h 16mUnited Airlines
Deal found 7/12$845

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 July 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

Tue 8/12

2:29 pm-12:16 am

1 stop7h 47m

Lambert-St Louis

Wed 8/20

7:53 am-1:43 pm

1 stop7h 50m

$329

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Tue 8/12

5:18 pm-12:38 am

1 stop5h 20m

Lambert-St Louis

Wed 8/20

2:25 pm-10:45 pm

2 stops10h 20m

$334

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Wed 8/6

6:00 am-2:26 pm

1 stop6h 26m

Lambert-St Louis

Wed 8/6

7:32 pm-12:13 am

1 stop6h 41m

$409

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Tue 8/12

11:29 am-11:09 pm

2 stops9h 40m

Lambert-St Louis

Fri 8/15

7:32 pm-10:52 am

1 stop17h 20m

$477

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Tue 7/29

12:45 pm-4:45 pm

3 stops26h 00m

Lambert-St Louis

Sat 8/2

6:33 am-12:55 pm

2 stops8h 22m

$957

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/12

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 July 14, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines 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.

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
8.0
Very good

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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

    Currently priced at $329, American Airlines will fly you from Pasco to St. Louis and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Hawaiian Airlines - these airlines can fly you to your destination from $334 and $409, respectively. American Airlines is currently priced 31% 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
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Festus
Chesterfield
Farmington

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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 July 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$316Average$436FlexibilityNo cancel feeOn-timeN/A

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