Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Pasco to St. Louis from $420

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Pasco to St. Louis departing on 9/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Pasco to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:32 pm - 11:51 am
PSC
-
STL
13h 19m
1 stop
Multiple Airlines Logo
12:46 pm - 7:42 pm
STL
-
PSC
8h 56m
1 stop
$420Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Delta Logo
5:21 pm - 12:41 am
PSC
-
STL
5h 20m
1 stop
Delta Logo
7:55 pm - 11:54 pm
STL
-
PSC
5h 59m
1 stop
$425Delta
Wed, Jul 8 - Tue, Jul 14
Multiple Airlines Logo
8:48 pm - 6:05 pm
PSC
-
STL
19h 17m
1 stop
Multiple Airlines Logo
3:41 pm - 9:31 am
STL
-
PSC
19h 50m
2 stops
$427Multiple Airlines
Mon, Jul 20 - Sat, Jul 25
Alaska Airlines Logo
1:55 pm - 11:59 pm
PSC
-
STL
8h 04m
1 stop
Alaska Airlines Logo
6:00 am - 1:18 pm
STL
-
PSC
9h 18m
1 stop
$434Alaska Airlines
Tue, Oct 20 - Sat, Oct 24
Delta Logo
5:21 pm - 12:43 am
PSC
-
STL
5h 22m
1 stop
Delta Logo
7:55 pm - 11:58 pm
STL
-
PSC
6h 03m
1 stop
$437Delta
Mon, Jun 29 - Tue, Jun 30
Multiple Airlines Logo
8:32 pm - 9:40 am
PSC
-
STL
35h 08m
2 stops
Multiple Airlines Logo
12:46 pm - 7:42 pm
STL
-
PSC
8h 56m
1 stop
$461Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
American Airlines Logo
3:24 pm - 11:58 pm
PSC
-
STL
6h 34m
1 stop
American Airlines Logo
8:01 am - 2:50 pm
STL
-
PSC
8h 49m
1 stop
$463American Airlines
Mon, Jul 20 - Sat, Jul 25
American Airlines Logo
5:15 am - 6:05 pm
PSC
-
STL
10h 50m
2 stops
American Airlines Logo
8:00 am - 2:48 pm
STL
-
PSC
8h 48m
1 stop
$468American Airlines
Wed, Aug 26 - Mon, Aug 31
Alaska Airlines Logo
4:00 pm - 5:10 pm
PSC
-
STL
23h 10m
1 stop
Alaska Airlines Logo
6:08 pm - 10:48 pm
STL
-
PSC
6h 40m
1 stop
$480Alaska Airlines
Tue, Sep 8 - Mon, Sep 14
Alaska Airlines Logo
4:00 pm - 4:40 pm
PSC
-
STL
22h 40m
2 stops
Alaska Airlines Logo
7:36 pm - 11:49 pm
STL
-
PSC
6h 13m
1 stop
$486Alaska Airlines
Mon, Sep 14 - Mon, Sep 21

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Delta flights from Pasco to St. Louis

Our best Delta deals on Pasco to St. Louis flight tickets
Delta
Jul 8
PSC5:21 pmPasco Tri Cities
5h 20m
1 stop
STL12:41 amLambert-St Louis
Jul 14
STL7:55 pmLambert-St Louis
5h 59m
1 stop
PSC11:54 pmPasco Tri Cities
$425
Delta
Jun 29
PSC5:21 pmPasco Tri Cities
5h 22m
1 stop
STL12:43 amLambert-St Louis
Jun 30
STL7:55 pmLambert-St Louis
6h 03m
1 stop
PSC11:58 pmPasco Tri Cities
$437
Delta
Jun 19
PSC5:21 pmPasco Tri Cities
5h 22m
1 stop
STL12:43 amLambert-St Louis
Jun 20
STL3:57 pmLambert-St Louis
5h 45m
1 stop
PSC7:42 pmPasco Tri Cities
$472

Alaska Airlines flights from Pasco to St. Louis

Our best Alaska Airlines deals on Pasco to St. Louis flight tickets
Alaska Airlines
Oct 20
PSC1:55 pmPasco Tri Cities
8h 04m
1 stop
STL11:59 pmLambert-St Louis
Oct 24
STL6:00 amLambert-St Louis
9h 18m
1 stop
PSC1:18 pmPasco Tri Cities
$434
Alaska Airlines
Sep 8
PSC4:00 pmPasco Tri Cities
23h 10m
1 stop
STL5:10 pmLambert-St Louis
Sep 14
STL6:08 pmLambert-St Louis
6h 40m
1 stop
PSC10:48 pmPasco Tri Cities
$480
Alaska Airlines
Sep 14
PSC4:00 pmPasco Tri Cities
22h 40m
2 stops
STL4:40 pmLambert-St Louis
Sep 21
STL7:36 pmLambert-St Louis
6h 13m
1 stop
PSC11:49 pmPasco Tri Cities
$486

momondo 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, momondo users made 832,500 searches. Data last updated June 17, 2026.
Use the filters below to find and compare flights from Pasco to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Mon 9/14

8:32 pm-11:51 am

1 stop13h 19m

Lambert-St Louis

Mon 9/21

12:46 pm-7:42 pm

1 stop8h 56m

$420
Quickest round-trip

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Wed 7/8

5:21 pm-12:41 am

1 stop5h 20m

Lambert-St Louis

Tue 7/14

7:55 pm-11:54 pm

1 stop5h 59m

$425

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Mon 7/20

8:48 pm-6:05 pm

1 stop19h 17m

Lambert-St Louis

Sat 7/25

3:41 pm-9:31 am

2 stops19h 50m

$427

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Tue 10/20

1:55 pm-11:59 pm

1 stop8h 04m

Lambert-St Louis

Sat 10/24

6:00 am-1:18 pm

1 stop9h 18m

$434

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Mon 6/29

5:21 pm-12:43 am

1 stop5h 22m

Lambert-St Louis

Tue 6/30

7:55 pm-11:58 pm

1 stop6h 03m

$437

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Mon 9/14

8:32 pm-9:40 am

2 stops35h 08m

Lambert-St Louis

Mon 9/21

12:46 pm-7:42 pm

1 stop8h 56m

$461

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Mon 7/20

3:24 pm-11:58 pm

1 stop6h 34m

Lambert-St Louis

Sat 7/25

8:01 am-2:50 pm

1 stop8h 49m

$463

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Wed 8/26

5:15 am-6:05 pm

2 stops10h 50m

Lambert-St Louis

Mon 8/31

8:00 am-2:48 pm

1 stop8h 48m

$468

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Tue 9/8

4:00 pm-5:10 pm

1 stop23h 10m

Lambert-St Louis

Mon 9/14

6:08 pm-10:48 pm

1 stop6h 40m

$480

PascoSt. Louis

PSC - STL

PSCSTL

Pasco Tri Cities

Mon 9/14

4:00 pm-4:40 pm

2 stops22h 40m

Lambert-St Louis

Mon 9/21

7:36 pm-11:49 pm

1 stop6h 13m

$486

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to St. Louis from

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

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 Pasco and St. Louis?

What is the cheapest month to fly to St. Louis?

In general, September is the cheapest month to fly from Pasco to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $229. The month of January is another great option to travel to St. Louis, with average flight prices from Pasco averaging around $330.

Can stopping save me money on Pasco to St. Louis flights?

You could potentially save up to 12% on your flight if you consider stops on a Pasco to St. Louis flight.

When to book flights from Pasco to St. Louis

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

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

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

Fastest flight time

5h 20m

Direct flights

None
The fastest flight from Pasco to St. Louis takes 5h 20m
There are no direct flights from Pasco to St. Louis. There are no popular flight routes from Pasco to St. Louis.
Search flight deals

Frequently asked questions about flying from Pasco to St. Louis

  • How far is Pasco Tri Cities to Lambert-St Louis by plane?

    There are 1553.5 mi between Pasco Tri Cities and Lambert-St Louis. A reasonable flight in good conditions will take 5h 20m.

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

    Prices for flights from Pasco Tri Cities Airport to Lambert-St Louis Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pasco Tri Cities Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis 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 Lambert-St Louis 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 Pasco to St. Louis?

Best airlines flying from Pasco to St. Louis

Compare and see reviews for airlines that fly from Pasco to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $273Free CancellationRating
7.8
8,406 reviews
Search Delta flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Wentzville
Clayton
Fenton
Farmington
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Pasco to St. Louis for you.

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

Yes. momondo enables you to select and highlight flights to St. Louis from Pasco with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Pasco to St. Louis.

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

Of course. momondo tracks the price of Pasco to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 7/17
Fri 7/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States