$40 Cheap flight deals from Phoenix (PHX) to Collinsville (STL)

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This Weekend's Flight Deals from Phoenix to Collinsville

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jan 25 - Fri, Jan 30
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$130 Roundtrip, found 16 hours ago
$130
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Sun, Jan 25 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Fri, Jan 30, priced at $130 found 16 hours ago

Airfares from $40 One Way, $81 Round Trip from Phoenix to Collinsville

Prices starting at $81 for return flights and $40 for one-way flights to Collinsville were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Feb 23 - Mon, Mar 2
PHX
Phoenix
STL
St. Louis
$81 Roundtrip, found 2 hours ago
$81
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Feb 23 from Phoenix to St. Louis, returning Mon, Mar 2, priced at $81 found 2 hours ago
Fri, Feb 20 - Mon, Feb 23
PHX
Phoenix
STL
St. Louis
$105 Roundtrip, just found
$105
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Feb 20 from Phoenix to St. Louis, returning Mon, Feb 23, priced at $105 just found
Wed, Feb 25 - Mon, Mar 2
PHX
Phoenix
STL
St. Louis
$106 Roundtrip, found 2 days ago
$106
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Feb 25 from Phoenix to St. Louis, returning Mon, Mar 2, priced at $106 found 2 days ago
Mon, Feb 23 - Sat, Feb 28
PHX
Phoenix
STL
St. Louis
$117 Roundtrip, found 2 days ago
$117
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Feb 23 from Phoenix to St. Louis, returning Sat, Feb 28, priced at $117 found 2 days ago
Fri, Jan 30 - Sat, Feb 7
PHX
Phoenix
STL
St. Louis
$123 Roundtrip, found 2 days ago
$123
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Jan 30 from Phoenix to St. Louis, returning Sat, Feb 7, priced at $123 found 2 days ago

Collinsville economy flight packages

Price found within the past 48 hours. Click for updated prices.
The Wildwood Hotel
3.5-star property

The Wildwood Hotel

9.2/10 Wonderful! (1,600 reviews)

Feb 28 - Mar 2

2 night stay

Phoenix (PHX) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Phoenix (PHX)

Frontier Airlines • Coach
Price was $422, price is now $273 per person
$273
per person
found 1 day ago
This hotel was fantastic! Check in was easy with friendly staff, the room was beautiful and well appointed. Breakfast was advertised as a Continental, however they had hot options as well, which was great. Every staff member we saw in the hotel said hi and was friendly. I would definitely stay here again!

Reviewed on Oct 16, 2025

White House at Grand Central
4.0-star property

White House at Grand Central

8.6/10 Excellent! (123 reviews)

Mar 12 - Mar 15

3 night stay

Phoenix (PHX) to St. Louis (STL)

Frontier Airlines • Roundtrip • Coach
Price was $465, price is now $364 per person
$364
per person
found 1 day ago
Beautiful old building with lots of character. Well supplied.

Reviewed on Sep 17, 2023

The Cheshire
4.0-star property

The Cheshire

8.6/10 Excellent! (1,002 reviews)

Mar 12 - Mar 15

3 night stay

Phoenix (PHX) to St. Louis (STL)

Frontier Airlines • Roundtrip • Coach
Price was $655, price is now $516 per person
$516
per person
found 1 day ago
We always stay here when in St. Louis. Love the place. Nice atmosphere, great pub.

Reviewed on Sep 2, 2025

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More About Flying To Collinsville from Phoenix

Route Information for Flights from Phoenix to Collinsville

Origin Airport IATA Code
PHX
Destination Airport IATA Code
STL
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Phoenix to Collinsville

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Discount Phoenix to Collinsville Flights

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Frequently asked questions

Are there non-stop flights from Phoenix to Collinsville?
There most certainly are, which is terrific news if you're not a huge fan of layovers. Southwest Airlines and American Airlines operate nonstop flights from Sky Harbor Intl. Airport (PHX) to STL.
What is the shortest flight from Phoenix to Collinsville?
Keep that movie marathon for your hotel room, because the trip from Phoenix to Collinsville can take as little as 2 hours and 45 minutes.
What airlines fly from Phoenix to Collinsville most frequently?
The carriers that offer the most frequent flights between Phoenix, AZ (PHX-Sky Harbor Intl.) and Lambert-St. Louis Intl. Airport (STL) include Southwest Airlines (WN). This popular option operates 95 flights on the route each month. If you can't find the right flight there, check out the fares with American Airlines (AA). This airline is a fantastic alternative and has 56 flights between Phoenix and Collinsville each month.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.