HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$194+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
PSC — STL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pasco to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2025.

Round-trip from

$261
(Delta)

One-way from

$194
(Delta)

Popular in

December

Cheapest in

January

Average price

$466
From Pasco Tri Cities to Lambert-St Louis
Search Deals
One-way flight from Pasco Tri Cities to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($90 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 8/207:11 pmSTL - PSC
1 stop6h 15mDelta
Deal found 6/10$261
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 8/281:05 pmPSC - STL
1 stop8h 54mHawaiian Airlines
Tue 9/23:35 pmSTL - PSC
1 stop7h 40mHawaiian Airlines
Deal found 6/10$317
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 8/287:00 amPSC - STL
2 stops14h 59mAlaska Airlines
Tue 9/26:00 amSTL - PSC
1 stop8h 28mAlaska Airlines
Deal found 6/10$387
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 6/306:38 amPSC - STL
1 stop8h 07mUnited Airlines
Tue 7/86:00 amSTL - PSC
1 stop7h 30mUnited Airlines
Deal found 6/10$423
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Mon 6/302:55 pmPSC - STL
1 stop7h 04mAmerican Airlines
Tue 7/87:44 amSTL - PSC
1 stop7h 48mAmerican Airlines
Deal found 6/12$449
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2512:11 pmPSC - STL
2 stops26h 53mMultiple Airlines
Sun 6/296:12 amSTL - PSC
2 stops28h 34mMultiple Airlines
Deal found 6/10$569

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 June 12, 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

5:18 pm-12:38 am

1 stop5h 20m

Lambert-St Louis

Wed 8/20

7:11 pm-11:26 pm

1 stop6h 15m

$261

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Thu 8/28

1:05 pm-11:59 pm

1 stop8h 54m

Lambert-St Louis

Tue 9/2

3:35 pm-9:15 pm

1 stop7h 40m

$317

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Thu 8/28

7:00 am-11:59 pm

2 stops14h 59m

Lambert-St Louis

Tue 9/2

6:00 am-12:28 pm

1 stop8h 28m

$387

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Mon 6/30

6:38 am-4:45 pm

1 stop8h 07m

Lambert-St Louis

Tue 7/8

6:00 am-11:30 am

1 stop7h 30m

$423

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Mon 6/30

2:55 pm-11:59 pm

1 stop7h 04m

Lambert-St Louis

Tue 7/8

7:44 am-1:32 pm

1 stop7h 48m

$449

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Wed 6/25

12:11 pm-5:04 pm

2 stops26h 53m

Lambert-St Louis

Sun 6/29

6:12 am-8:46 am

2 stops28h 34m

$569

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Fri 7/4

5:45 am-1:30 pm

1 stop5h 45m

$194

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Wed 6/25

12:11 pm-5:04 pm

2 stops26h 53m

$249

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Thu 6/26

2:55 pm-11:59 pm

1 stop7h 04m

$265

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Thu 6/26

11:29 am-11:59 pm

2 stops10h 30m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 11 results
1
2

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.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 12, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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 $261, 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. Search Cheapflights for deals from Hawaiian Airlines and Alaska Airlines - these airlines can fly you to your destination from $317 and $387, respectively. Delta is currently priced 47% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Pasco to St. Louis one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $194. However, be on the lookout for offers from American Airlines and Alaska Airlines, as they are both options that can get you from Pasco to St. Louis for a low price.

  • 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 Pasco?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pasco to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Kansas City flights
Seattle to St. Louis flights
Portland to Kansas City flights
Portland to St. Louis flights
Seattle to Springfield flights
Spokane to Kansas City flights
Portland to Springfield flights
Seattle to Branson flights
Spokane to St. Louis flights
Spokane to Springfield flights
Pasco to Kansas City flights
Seattle to Joplin flights
Seattle to Columbia flights
Portland to Joplin flights
Portland to Columbia flights
Bellingham to St. Louis flights
Pullman to St. Louis flights
Pasco to Springfield flights
Yakima to Springfield flights
Pullman to Kansas City flights
Portland to Branson flights
Bellingham to Kansas City flights
Seattle to Quincy flights
Walla Walla to St. Louis flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$316Average$436FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.