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

Alaska Airlines and United Airlines can get you from Pasco to St. Louis in just under 6h 16m. Your travel time can differ by up to 21h 11m. The distance from Pasco to St. Louis is about 1542 mi. This flight may include one or multiple stops.

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

Currently priced at $268, 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 35% below the average price you’ll pay for this route.

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.

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).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pasco to St. Louis as you normally would.

Most accurate provider : When it comes to deals on Pasco-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Pasco-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Pasco-St. Louis flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Pasco-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Pasco-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$144+ Flights from Pasco to St. Louis

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

Airfare is below average for this route at the moment. Pasco to St. Louis flights typically cost between $377 and $402 in January. The cheapest round-trip price found within the last 3 days was $357 on Alaska Airlines (Jan 17-Jan 21).

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Cheap flight deals from Pasco to St. Louis

Best flights from Pasco to St. Louis
Discover carefully curated flight deals from Pasco to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Sat 1/178:27 amPSC - STL

1 stop27h 27mAlaska Airlines

Wed 1/212:50 pmSTL - PSC

1 stop8h 07mAlaska Airlines

Deal found 12/25

$357

Sat 1/175:00 amPSC - STL

1 stop6h 16mUnited Airlines

Wed 1/2111:20 amSTL - PSC

2 stops11h 53mUnited Airlines

Deal found 12/24

$442

Sat 1/102:47 pmPSC - STL

1 stop7h 12mAmerican Airlines

Wed 1/142:38 pmSTL - PSC

1 stop7h 20mAmerican Airlines

Deal found 12/26

$569

Thu 1/86:50 amPSC - STL

1 stop7h 55mDelta

Mon 1/127:00 amSTL - PSC

1 stop7h 03mDelta

Deal found 12/24

$569

Fri 1/98:27 amPSC - STL

1 stop12h 19mAlaska Airlines

Tue 1/132:50 pmSTL - PSC

1 stop20h 13mAlaska Airlines

Deal found 12/25

$551

Last-minute flights from Pasco to St. Louis
Discover last-minute flight deals from Pasco to St. Louis. Data last updated December 26, 2025 and is based on user searches.

Thu 1/86:50 amPSC - STL

1 stop7h 55mDelta

Mon 1/127:00 amSTL - PSC

1 stop7h 03mDelta

Deal found 12/24

$569

Thu 1/86:00 amPSC - STL

2 stops13h 13mUnited Airlines

Mon 1/129:57 amSTL - PSC

2 stops13h 16mUnited Airlines

Deal found 12/24

$579

Fri 1/98:27 amPSC - STL

1 stop12h 19mAlaska Airlines

Tue 1/132:50 pmSTL - PSC

1 stop20h 13mAlaska Airlines

Deal found 12/25

$551

Fri 1/96:00 amPSC - STL

2 stops14h 58mUnited Airlines

Tue 1/136:00 amSTL - PSC

3 stops17h 13mUnited Airlines

Deal found 12/25

$1,491

Sat 1/178:27 amPSC - STL

1 stop27h 27mAlaska Airlines

Wed 1/212:50 pmSTL - PSC

1 stop8h 07mAlaska Airlines

Deal found 12/25

$357

Sat 1/175:00 amPSC - STL

1 stop6h 16mUnited Airlines

Wed 1/2111:20 amSTL - PSC

2 stops11h 53mUnited Airlines

Deal found 12/24

$442

One-way flights from Pasco to St. Louis
Search for one-way flight options from Pasco to St. Louis. Find affordable one-way fares based on user searches. Data last updated December 26, 2025.

Mon 3/235:38 pmPSC - STL

2 stops28h 43mDelta

Deal found 12/23

$144

Mon 3/236:11 pmPSC - STL

1 stop27h 48mAlaska Airlines

Deal found 12/23

$168

Thu 3/196:11 pmPSC - STL

1 stop19h 09mAlaska Airlines

Deal found 12/23

$178

Sun 3/224:41 pmPSC - STL

1 stop20h 39mAlaska Airlines

Deal found 12/23

$198

Fri 3/206:00 amPSC - STL

1 stop7h 20mAlaska Airlines

Deal found 12/23

$199

Sun 3/225:38 pmPSC - STL

2 stops18h 46mDelta

Deal found 12/23

$255

Thu 3/195:25 amPSC - STL

2 stops25h 36mDelta

Deal found 12/23

$324

Sat 3/216:30 amPSC - STL

1 stop5h 54mDelta

Deal found 12/23

$379

Fri 3/2012:50 pmPSC - STL

2 stops8h 25mDelta

Deal found 12/23

$384

Sat 3/217:26 pmPSC - STL

2 stops26h 33mAlaska Airlines

Deal found 12/23

$397

Find flight deals from Pasco to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$357 (Alaska Airlines)
One-way from	$144 (Delta)
Popular in	March
Cheapest in	September
Average price	$450

Provider with most accurate pricing for Pasco Tri Cities-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for Pasco Tri Cities-Lambert-St Louis flights.

Search Deals

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. 8% potential increase in price ($37 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Sat 1/17

8:27 am-1:54 pm

1 stop27h 27m

Lambert-St Louis

Wed 1/21

2:50 pm-8:57 pm

1 stop8h 07m

$357

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Sat 1/17

5:00 am-1:16 pm

1 stop6h 16m

Lambert-St Louis

Wed 1/21

11:20 am-9:13 pm

2 stops11h 53m

$442

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Fri 1/9

8:27 am-10:46 pm

1 stop12h 19m

Lambert-St Louis

Tue 1/13

2:50 pm-9:03 am

1 stop20h 13m

$551

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Sat 1/10

2:47 pm-11:59 pm

1 stop7h 12m

Lambert-St Louis

Wed 1/14

2:38 pm-7:58 pm

1 stop7h 20m

$569

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Thu 1/8

6:50 am-4:45 pm

1 stop7h 55m

Lambert-St Louis

Mon 1/12

7:00 am-12:03 pm

1 stop7h 03m

$569

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Mon 3/23

5:38 pm-12:21 am

2 stops28h 43m

$144

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Mon 3/23

6:11 pm-11:59 pm

1 stop27h 48m

$168

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Thu 3/19

6:11 pm-3:20 pm

1 stop19h 09m

$178

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Sun 3/22

4:41 pm-3:20 pm

1 stop20h 39m

$198

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Fri 3/20

6:00 am-3:20 pm

1 stop7h 20m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Showing 1-10 of 14 results

Compare providers for flights from Pasco to St. Louis

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pasco to St. Louis in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Pasco-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Pasco-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Pasco-St. Louis flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Pasco-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Pasco-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, September is the cheapest month in which you can book a flight from Pasco to St. Louis (average of $193). Flying from Pasco to St. Louis in July is currently the most expensive (average of $482). 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

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

7.9

Good

8,013 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,013 reviews

Delta

7.9

Good

8,013 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

How long is the flight from Pasco to St. Louis?
Alaska Airlines and United Airlines can get you from Pasco to St. Louis in just under 6h 16m. Your travel time can differ by up to 21h 11m. The distance from Pasco to St. Louis is about 1542 mi. This flight may include one or multiple stops.
What is the cheapest airline to fly from Pasco to St. Louis round-trip?
Currently priced at $268, 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 35% 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, September is the cheapest month in which you can book a flight from Pasco to St. Louis (average of $193). Flying from Pasco to St. Louis in July is currently the most expensive (average of $482). 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

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Other flights to St. Louis

Top airline flying from Pasco to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$268	Average$404	FlexibilityNo cancel fee	On-timeN/A

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$144+ 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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Pasco to St. Louis with Cheapflights

1. Tell us where you want to go

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Cheap flight deals from Pasco to St. Louis

Best flights from Pasco to St. LouisDiscover carefully curated flight deals from Pasco to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Discover carefully curated flight deals from Pasco to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Find flight deals from Pasco to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Pasco to St. Louis that are best for you.

Compare providers for flights from Pasco to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pasco to St. Louis in December.

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.

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?

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

Reviews of airlines servicing St. Louis

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.

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.

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

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

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

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

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

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

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Top airline flying from Pasco to St. Louis

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Best flights from Pasco to St. Louis
Discover carefully curated flight deals from Pasco to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.