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Cheap flights from St. Louis to Pasco from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Pasco departing on 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Pasco

Cheap round-trip flights

Delta Logo
6:00 am - 4:35 pmSTL-PSC
12h 35m2 stops
Delta Logo
5:47 pm - 2:16 pmPSC-STL
18h 29m2 stops
$254Delta
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Sat, Sep 27 - Tue, Sep 30
Delta Logo
12:15 pm - 8:55 pmSTL-PSC
10h 40m2 stops
Delta Logo
5:47 pm - 2:16 pmPSC-STL
18h 29m2 stops
$274Delta
Find Deal
Sat, Sep 27 - Tue, Sep 30
Delta Logo
5:30 pm - 10:28 pmSTL-PSC
6h 58m1 stop
Delta Logo
5:47 pm - 8:37 amPSC-STL
12h 50m2 stops
$284Delta
Find Deal
Sat, Sep 27 - Tue, Sep 30
Hawaiian Airlines Logo
3:35 pm - 9:15 pmSTL-PSC
7h 40m1 stop
Hawaiian Airlines Logo
8:45 am - 5:34 pmPSC-STL
6h 49m1 stop
$290Hawaiian Airlines
Find Deal
Sat, Sep 27 - Tue, Sep 30
Delta Logo
12:15 pm - 8:55 pmSTL-PSC
10h 40m2 stops
Delta Logo
5:15 pm - 12:38 amPSC-STL
5h 23m1 stop
$296Delta
Find Deal
Sat, Sep 27 - Tue, Sep 30
Delta Logo
2:31 pm - 11:11 pmSTL-PSC
10h 40m2 stops
Delta Logo
5:13 pm - 12:24 amPSC-STL
5h 11m1 stop
$312Delta
Find Deal
Fri, Oct 3 - Tue, Oct 7
Hawaiian Airlines Logo
3:35 pm - 12:08 amSTL-PSC
10h 33m1 stop
Hawaiian Airlines Logo
8:45 am - 5:34 pmPSC-STL
6h 49m1 stop
$317Hawaiian Airlines
Find Deal
Sat, Sep 27 - Tue, Sep 30
Hawaiian Airlines Logo
6:30 pm - 12:15 amSTL-PSC
7h 45m1 stop
Hawaiian Airlines Logo
3:52 pm - 12:03 amPSC-STL
6h 11m1 stop
$326Hawaiian Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7
United Airlines Logo
12:25 pm - 8:39 pmSTL-PSC
10h 14m2 stops
United Airlines Logo
6:32 am - 10:00 pmPSC-STL
13h 28m3 stops
$453United Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7
American Airlines Logo
7:53 am - 1:43 pmSTL-PSC
7h 50m1 stop
American Airlines Logo
2:55 pm - 12:16 amPSC-STL
7h 21m1 stop
$574American Airlines
Find Deal
Sun, Aug 17 - Thu, Aug 21

Delta flights from St. Louis to Pasco

Our best Delta deals on St. Louis to Pasco flight tickets
Delta
Sep 27
STL6:00 amLambert-St Louis
12h 35m
2 stops
PSC4:35 pmPasco Tri Cities
Sep 30
PSC5:47 pmPasco Tri Cities
18h 29m
2 stops
STL2:16 pmLambert-St Louis
$254
Find similar
Delta
Sep 27
STL12:15 pmLambert-St Louis
10h 40m
2 stops
PSC8:55 pmPasco Tri Cities
Sep 30
PSC5:47 pmPasco Tri Cities
18h 29m
2 stops
STL2:16 pmLambert-St Louis
$274
Find similar
Delta
Sep 27
STL5:30 pmLambert-St Louis
6h 58m
1 stop
PSC10:28 pmPasco Tri Cities
Sep 30
PSC5:47 pmPasco Tri Cities
12h 50m
2 stops
STL8:37 amLambert-St Louis
$284
Find similar

Hawaiian Airlines flights from St. Louis to Pasco

Our best Hawaiian Airlines deals on St. Louis to Pasco flight tickets
Hawaiian Airlines
Sep 27
STL3:35 pmLambert-St Louis
7h 40m
1 stop
PSC9:15 pmPasco Tri Cities
Sep 30
PSC8:45 amPasco Tri Cities
6h 49m
1 stop
STL5:34 pmLambert-St Louis
$290
Find similar
Hawaiian Airlines
Sep 27
STL3:35 pmLambert-St Louis
10h 33m
1 stop
PSC12:08 amPasco Tri Cities
Sep 30
PSC8:45 amPasco Tri Cities
6h 49m
1 stop
STL5:34 pmLambert-St Louis
$317
Find similar
Hawaiian Airlines
Oct 3
STL6:30 pmLambert-St Louis
7h 45m
1 stop
PSC12:15 amPasco Tri Cities
Oct 7
PSC3:52 pmPasco Tri Cities
6h 11m
1 stop
STL12:03 amLambert-St Louis
$326
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 3, 2025.
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

Price

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Sat 9/27

6:00 am-4:35 pm

2 stops12h 35m

Pasco Tri Cities

Tue 9/30

5:47 pm-2:16 pm

2 stops18h 29m

$254

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Sat 9/27

12:15 pm-8:55 pm

2 stops10h 40m

Pasco Tri Cities

Tue 9/30

5:47 pm-2:16 pm

2 stops18h 29m

$274

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Sat 9/27

5:30 pm-10:28 pm

1 stop6h 58m

Pasco Tri Cities

Tue 9/30

5:47 pm-8:37 am

2 stops12h 50m

$284

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Sat 9/27

3:35 pm-9:15 pm

1 stop7h 40m

Pasco Tri Cities

Tue 9/30

8:45 am-5:34 pm

1 stop6h 49m

$290

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Sat 9/27

12:15 pm-8:55 pm

2 stops10h 40m

Pasco Tri Cities

Tue 9/30

5:15 pm-12:38 am

1 stop5h 23m

$296

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Fri 10/3

2:31 pm-11:11 pm

2 stops10h 40m

Pasco Tri Cities

Tue 10/7

5:13 pm-12:24 am

1 stop5h 11m

$312

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Sat 9/27

3:35 pm-12:08 am

1 stop10h 33m

Pasco Tri Cities

Tue 9/30

8:45 am-5:34 pm

1 stop6h 49m

$317

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Fri 10/3

6:30 pm-12:15 am

1 stop7h 45m

Pasco Tri Cities

Tue 10/7

3:52 pm-12:03 am

1 stop6h 11m

$326

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Fri 10/3

12:25 pm-8:39 pm

2 stops10h 14m

Pasco Tri Cities

Tue 10/7

6:32 am-10:00 pm

3 stops13h 28m

$453

St. LouisPasco

STL - PSC

STLPSC

Lambert-St Louis

Sun 8/17

7:53 am-1:43 pm

1 stop7h 50m

Pasco Tri Cities

Thu 8/21

2:55 pm-12:16 am

1 stop7h 21m

$574

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Pasco from

How to get the cheapest flight ticket from St. Louis to Pasco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Pasco?

What is the cheapest month to fly to Pasco?

The month of October is, on average, the cheapest month to fly to Pasco from St. Louis, with most prices found around $326. The month of November is another great option to travel to Pasco, with average flight prices from St. Louis averaging around $358.

What is the cheapest day to depart on your flight to Pasco?

The cheapest day to depart from St. Louis to Pasco is on a Wednesday. Travelers who choose to depart for Pasco on a Wednesday will often find tickets for as low as $414. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Pasco on Thursday is $657.

What is the cheapest time of day to depart on your flight to Pasco?

The cheapest time of day to fly to Pasco is in the morning when flights can be purchased for as low as $465. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $628 on average. Flights to Pasco from St. Louis in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from St. Louis to Pasco

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Pasco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Pasco (STL to PSC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Pasco

Best Price Found

$139

Fastest flight time

5h 42m

Direct flights

None

Airports in Pasco

1 airport
The best one-way flight to Pasco from St. Louis in the past 72 hours is $139. The best round-trip flight deal from St. Louis to Pasco found on momondo in the last 72 hours is $254.
The fastest flight from St. Louis to Pasco takes 5h 42m
There are no direct flights from St. Louis to Pasco. Popular non-direct route for this connection is Lambert-St Louis Airport - Pasco Tri Cities Airport.
There is 1 airport near Pasco: Pasco Tri Cities (PSC)
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  • How far is Lambert-St Louis to Pasco Tri Cities by plane?

    Lambert-St Louis and Pasco Tri Cities are 1553.5 mi apart from one another. In terms of flight time, this usually takes a little over 5h 42m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Pasco Tri Cities Airport?

    Prices for flights from Lambert-St Louis Airport to Pasco Tri Cities Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Pasco Tri Cities Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Pasco Tri Cities Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Pasco Tri Cities Airport.

  • What documentation or ID do you need to fly to Pasco Tri Cities Airport?

    The travel and health documents you'll need for your trip to Pasco Tri Cities Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Pasco Tri Cities Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Pasco?

Best airlines flying from St. Louis to Pasco

Compare and see reviews for airlines that fly from St. Louis to Pasco with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $306Free CancellationRating
8.0
7,986 reviews
Search Delta flights
United AirlinesPriceFrom $323Free CancellationRating
7.4
8,909 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $325Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

Traveling to a place near Pasco?

Book flights to Pasco if you plan to visit one of these locations
Kennewick
Richland

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Pasco?

It is quick and easy to find St. Louis to Pasco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Pasco that suits you.

Can I find flights from St. Louis to Pasco with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Pasco flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Pasco?

momondo provides multiple filters to help you find the best flight to Pasco from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Pasco right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Pasco flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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