$197+ Cheap flights from St. Louis to Pasco (STL - PSC)
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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PSC
Oct 4 — Oct 111
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Pasco 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 St. Louis to Pasco
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Best
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Cheapest flights from St. Louis to PascoExplore 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 September 4, 2026.
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 September 4, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/31. 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.
Wed 9/166:08 pm -
1 stop6h 40m
Tue 9/224:00 pm -
1 stop23h 10m
Deal found 8/31![Alaska Airlines logo]()
$435
This Delta deal was found by Cheapflights users on 8/31. 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.
Wed 9/166:55 pm -
1 stop6h 33m
Tue 9/225:25 am -
2 stops10h 12m
Deal found 8/31![Delta logo]()
$440
This Alaska Airlines deal was found by Cheapflights users on 8/31. 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.
Fri 12/256:04 am -
1 stop8h 59m
Sat 1/25:10 am -
1 stop8h 24m
Deal found 8/31![Alaska Airlines logo]()
$493
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Wed 9/98:40 am -
2 stops13h 57m
Tue 9/155:15 am -
2 stops8h 23m
Deal found 9/4![United Airlines logo]()
$521
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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 10/157:02 am -
1 stop8h 16m
Mon 10/191:55 pm -
1 stop8h 04m
Deal found 9/2![Alaska Airlines logo]()
$527
This Delta deal was found by Cheapflights users on 9/1. 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.
Thu 10/293:35 pm -
2 stops10h 24m
Mon 11/212:21 pm -
1 stop6h 48m
Deal found 9/1![Delta logo]()
$532
This Alaska Airlines deal was found by Cheapflights users on 9/1. 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.
Wed 9/166:29 am -
1 stop8h 58m
Sun 9/206:00 am -
1 stop6h 21m
Deal found 9/1![Alaska Airlines logo]()
$533
Best flights from St. Louis to PascoDiscover carefully curated flight deals from St. Louis to Pasco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
Discover carefully curated flight deals from St. Louis to Pasco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/30. 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.
Wed 9/166:08 pm -
1 stop6h 40m
Tue 9/224:00 pm -
1 stop23h 10m
Deal found 8/30![Alaska Airlines logo]()
$435
This Delta deal was found by Cheapflights users on 8/30. 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.
Wed 9/166:55 pm -
1 stop6h 33m
Tue 9/225:25 am -
2 stops10h 12m
Deal found 8/30![Delta logo]()
$440
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/168:00 am -
1 stop8h 51m
Tue 9/225:05 am -
1 stop6h 39m
Deal found 9/2![American Airlines logo]()
$511
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Wed 9/94:40 pm -
1 stop5h 57m
Tue 9/155:15 am -
2 stops8h 23m
Deal found 9/4![United Airlines logo]()
$516
This Priceline deal was found by Cheapflights users on 9/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:29 am -
1 stop8h 58m
Tue 9/158:04 am -
1 stop8h 34m
Deal found 9/4![Alaska Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 9/1. 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.
Thu 10/293:35 pm -
2 stops10h 24m
Mon 11/212:21 pm -
1 stop6h 48m
Deal found 9/1![Delta logo]()
$532
This Priceline deal was found by Cheapflights users on 9/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:02 am -
1 stop8h 16m
Mon 11/21:49 pm -
1 stop8h 10m
Deal found 9/1![Alaska Airlines logo]()
$527
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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 10/157:02 am -
1 stop8h 16m
Mon 10/191:55 pm -
1 stop8h 04m
Deal found 9/2![Alaska Airlines logo]()
$527
Last-minute flights from St. Louis to PascoDiscover last-minute flight deals from St. Louis to Pasco. Data last updated September 4, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Pasco. Data last updated September 4, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Wed 9/98:40 am -
2 stops13h 57m
Tue 9/155:15 am -
2 stops8h 23m
Deal found 9/4![United Airlines logo]()
$521
This Alaska Airlines deal was found by Cheapflights users on 8/31. 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.
Wed 9/166:08 pm -
1 stop6h 40m
Tue 9/224:00 pm -
1 stop23h 10m
Deal found 8/31![Alaska Airlines logo]()
$435
This Delta deal was found by Cheapflights users on 8/31. 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.
Wed 9/166:55 pm -
1 stop6h 33m
Tue 9/225:25 am -
2 stops10h 12m
Deal found 8/31![Delta logo]()
$440
This Alaska Airlines deal was found by Cheapflights users on 9/1. 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.
Wed 9/166:29 am -
1 stop8h 58m
Sun 9/206:00 am -
1 stop6h 21m
Deal found 9/1![Alaska Airlines logo]()
$533
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/165:43 am -
2 stops11h 08m
Tue 9/225:05 am -
2 stops12h 02m
Deal found 9/2![American Airlines logo]()
$539
This Delta deal was found by Cheapflights users on 9/3. 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.
Fri 10/26:15 am -
2 stops10h 43m
Thu 10/85:19 pm -
1 stop5h 25m
Deal found 9/3![Delta logo]()
$546
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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 10/157:02 am -
1 stop8h 16m
Mon 10/191:55 pm -
1 stop8h 04m
Deal found 9/2![Alaska Airlines logo]()
$527
This Delta deal was found by Cheapflights users on 9/1. 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.
Thu 10/293:35 pm -
2 stops10h 24m
Mon 11/212:21 pm -
1 stop6h 48m
Deal found 9/1![Delta logo]()
$532
One-way flights from St. Louis to PascoSearch for one-way flight options from St. Louis to Pasco. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
Search for one-way flight options from St. Louis to Pasco. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
This Delta deal was found by Cheapflights users on 9/4. 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 12/153:32 pm -
2 stops10h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$197
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Tue 12/152:50 pm -
1 stop8h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/156:05 pm -
3 stops48h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$362
This Delta deal was found by Cheapflights users on 8/31. 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.
Sat 12/263:25 pm -
1 stop6h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Delta logo]()
$520
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/263:52 pm -
2 stops43h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Multiple Airlines logo]()
$566
Find 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 September 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $435 (Alaska Airlines) |
One-way from | $197 (Delta) |
Popular in | August |
Cheapest in | October |
Average price | $624 |
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 7,457,451 searches. Data last updated September 4, 2026.
Use the filters below to find and compare flights from St. Louis to Pasco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisPasco
STL Lambert-St Louis - PSC Pasco Tri Cities
STLPSC
Lambert-St Louis
Tue 12/15
3:32 pm-12:05 am
2 stops10h 33m
Pasco Tri Cities
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$197
St. LouisPasco
STL Lambert-St Louis - PSC Pasco Tri Cities
STLPSC
Lambert-St Louis
Tue 12/15
2:50 pm-9:14 pm
1 stop8h 24m
Pasco Tri Cities
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$218
St. LouisPasco
STL Lambert-St Louis - PSC Pasco Tri Cities
STLPSC
Lambert-St Louis
Wed 9/16
6:08 pm-10:48 pm
1 stop6h 40m
Pasco Tri Cities
Tue 9/22
4:00 pm-5:10 pm
1 stop23h 10m
$435
St. LouisPasco
STL Lambert-St Louis - PSC Pasco Tri Cities
STLPSC
Lambert-St Louis
Wed 9/16
6:55 pm-11:28 pm
1 stop6h 33m
Pasco Tri Cities
Tue 9/22
5:25 am-5:37 pm
2 stops10h 12m
$440
St. LouisPasco
STL Lambert-St Louis - PSC Pasco Tri Cities
STLPSC
Lambert-St Louis
Wed 9/16
8:00 am-2:51 pm
1 stop8h 51m
Pasco Tri Cities
Tue 9/22
5:05 am-1:44 pm
1 stop6h 39m
$511
St. LouisPasco
STL Lambert-St Louis - PSC Pasco Tri Cities
STLPSC
Lambert-St Louis
Wed 9/9
6:29 am-1:27 pm
1 stop8h 58m
Pasco Tri Cities
Tue 9/15
8:04 am-6:38 pm
1 stop8h 34m
$511
St. LouisPasco
STL Lambert-St Louis - PSC Pasco Tri Cities
STLPSC
Lambert-St Louis
Wed 9/9
4:40 pm-8:37 pm
1 stop5h 57m
Pasco Tri Cities
Tue 9/15
5:15 am-3:38 pm
2 stops8h 23m
$516
Quickest round-trip
St. LouisPasco
STL Lambert-St Louis - PSC Pasco Tri Cities
STLPSC
Lambert-St Louis
Sat 12/26
3:25 pm-8:03 pm
1 stop6h 38m
Pasco Tri Cities
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$520
St. LouisPasco
STL Lambert-St Louis - PSC Pasco Tri Cities
STLPSC
Lambert-St Louis
Thu 10/29
7:02 am-1:18 pm
1 stop8h 16m
Pasco Tri Cities
Mon 11/2
1:49 pm-11:59 pm
1 stop8h 10m
$527
St. LouisPasco
STL Lambert-St Louis - PSC Pasco Tri Cities
STLPSC
Lambert-St Louis
Thu 10/15
7:02 am-1:18 pm
1 stop8h 16m
Pasco Tri Cities
Mon 10/19
1:55 pm-11:59 pm
1 stop8h 04m
$527
Showing 1-10 of 12 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Pasco
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 St. Louis to Pasco in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Pasco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Pasco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Pasco flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Pasco flights, Cheapflights users trust FlightHub the most. FlightHub 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 St. Louis-Pasco 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 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.
STL-PSC
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.
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 September 4, 2026.
Get a feel of what it's like to fly with Alaska Airlines and Delta 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.
Comfort
7.8
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Comfort
7.8
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Comfort
7.8
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
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.
Traveling to a place near Pasco?
Book flights to Pasco if you plan to visit one of these locationsKennewick
Richland
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St. Louis and Pasco flights
Browse other St. Louis and Pasco flight options. Last updated on September 4, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on September 4, 2026.
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Popular flight searches
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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 7,457,451 searches. Data last updated September 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$350 | Average$600 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$398 | Average$468 | FlexibilityNo cancel fee | On-timeN/A |