$96 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, Mar 15 - Mon, Apr 6
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$305 Roundtrip, found 3 days ago
$305
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sun, Mar 15 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Mon, Apr 6, priced at $305 found 3 days ago

Airfares from $96 One Way, $173 Round Trip from Phoenix to Collinsville

Prices starting at $173 for return flights and $96 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.

Thu, Mar 12 - Mon, Mar 23
PHX
Phoenix
STL
St. Louis
$173 Roundtrip, found 6 days ago
$173
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Mar 12 from Phoenix to St. Louis, returning Mon, Mar 23, priced at $173 found 6 days ago
Thu, Mar 12 - Thu, Apr 16
PHX
Phoenix
STL
St. Louis
$183 Roundtrip, found 6 days ago
$183
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Mar 12 from Phoenix to St. Louis, returning Thu, Apr 16, priced at $183 found 6 days ago
Fri, May 8 - Mon, May 11
PHX
Phoenix
STL
St. Louis
$190 Roundtrip, found 1 day ago
$190
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, May 8 from Phoenix to St. Louis, returning Mon, May 11, priced at $190 found 1 day ago
Fri, May 8 - Mon, May 11
PHX
Phoenix
STL
St. Louis
$192 Roundtrip, found 1 day ago
$192
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, May 8 from Phoenix to St. Louis, returning Mon, May 11, priced at $192 found 1 day ago
Fri, May 1 - Sun, May 3
PHX
Phoenix
STL
St. Louis
$193 Roundtrip, found 1 day ago
$193
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, May 1 from Phoenix to St. Louis, returning Sun, May 3, priced at $193 found 1 day ago

Collinsville economy flight packages

Price found within the past 48 hours. Click for updated prices.
21C Museum Hotel St Louis
4.5-star property

21C Museum Hotel St Louis

9/10 Wonderful! (1,633 reviews)

Apr 22 - Apr 24

2 night stay

Phoenix (PHX) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Phoenix (PHX)

Frontier Airlines • Coach
Price was $505, price is now $423 per person
$423
per person
found 1 day ago
The cafe that sold breakfast ran out of healthy options each morning (yogurt parfait cup/ overnight oats & quinoa $8 each) They had other plates, egg with meat, etc that looked nice fwiw. Cute gift shop in the cafe. Fashionable hotel with no real 'front desk' just a checkin counter, but volunteers were staffing a St. Louis info table in the lobby while we were there- very friendly. The bar/tapas restaurant across the lobby was fun, $$, and kitchen closed at 10 or so when our events got out so I didn't get to try it. LOVED the historic building, originally a YMCA, the handsome billiards room and the terrific tiled pool with vaulted ceiling- they don't make them like that anymore. Steam room, sauna, showers were great- bring a room towel in case the spa runs short! Open til 10:30p or 11p fyi. Art Museum on the 2nd floor is free to visitors, and had some challenging, gorgeous, funny, and thought-provoking art. Historic Campbell Mansion next door was a neat contrast and a quick peek into the high Victorian era. Glad I went, would stay again

Reviewed on Jan 14, 2026

The Wildwood Hotel
3.5-star property

The Wildwood Hotel

9.2/10 Wonderful! (1,626 reviews)

Apr 22 - Apr 24

2 night stay

Phoenix (PHX) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Phoenix (PHX)

Frontier Airlines • Coach
Save 100% on your flight
Price was $789, price is now $516 per person
$516
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

Angad Arts Hotel St. Louis, Tapestry Collection by Hilton
4.0-star property

Angad Arts Hotel St. Louis, Tapestry Collection by Hilton

8.8/10 Excellent! (1,056 reviews)

Apr 22 - Apr 24

2 night stay

Phoenix (PHX) to St. Louis (STL)

Southwest Airlines • Coach

St. Louis (STL) to Phoenix (PHX)

Frontier Airlines • Coach
Price was $549, price is now $436 per person
$436
per person
found 1 day ago
Perfect location for stay after event at Powell Theater. Roof top bar was nice although a little pricey. Room was unique, clean, and comfortable. Parking is additional.

Reviewed on Jan 18, 2026

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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

Looking for cheap Phoenix to Collinsville flights? Orbitz has the cheapest air fares for flights from Phoenix to Collinsville. Plus, with our cutting-edge mobile tools, travel planning has never been easier or more wallet-friendly.

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Cheap Air Ticket Prices Guaranteed

Orbitz is your number one source for low fares for Phoenix to Collinsville flights. Our low price guarantee on domestic and international air tickets give you great savings for a perfect trip to Collinsville. Need hotels too? You can book them last minute on your mobile phone.

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.