HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from St. Louis (STL) to Sky Harbor Intl (PHX) from $39

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — PHX
Apr 28 — May 51
From?
To?
Sun 4/28
Sun 5/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Lambert-St Louis to Phoenix Sky Harbor Intl are usually found in August or October, booked 4 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap flight deals from St. Louis to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Sky Harbor Intl (PHX). 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 April 23, 2024.

Popular in

March

Cheapest in

August

Round-trip from

$251

One-way from

$106
High demand for flights, 18% potential price rise
Search Deals
Best time to find cheap flights, 14% potential price drop
Search Deals
From Lambert-St Louis to Phoenix Sky Harbor Intl
Search Deals
One-way flight from Lambert-St Louis to Phoenix Sky Harbor Intl
Search Deals

What is the cheapest day to fly round-trip from St. Louis to Phoenix Sky Harbor Intl Airport?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 18% on the overall cost on flights from St. Louis to Phoenix Sky Harbor Intl Airport.

What is the cheapest month to fly from St. Louis to Phoenix Sky Harbor Intl Airport?

The best pricing can be found in the month of August. Prices to Phoenix Sky Harbor Intl Airport from St. Louis average $396. You can even find prices in August for less than $396, as users have found deals to Phoenix Sky Harbor Intl Airport from as low as $154. The month of March appears to be one of the more expensive times to travel to Phoenix Sky Harbor Intl Airport from St. Louis. Flying in the targeted month can save you up to 22%.

When is the cheapest time to fly from St. Louis to Phoenix Sky Harbor Intl Airport (STL - PHX)?

When flying from St. Louis to Phoenix Sky Harbor Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 54% versus a flight at noon.

Cheap American Airlines flights from St. Louis to Sky Harbor Intl

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Sky Harbor Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,086,534 searches. Data last updated April 23, 2024.
Take a look at some of the lowest-priced American Airlines flights heading from St. Louis to Phoenix. Make sure to double check the flight details before booking.
Tue 5/148:00 amSTL - PHX
Nonstop3h 24mAmerican Airlines
Sat 5/186:56 pmPHX - STL
Nonstop3h 00mAmerican Airlines
Deal found 4/22$131
Tue 5/148:00 amSTL - PHX
Nonstop3h 24mAmerican Airlines
Fri 5/1712:59 amPHX - STL
1 stop6h 54mAmerican Airlines
Deal found 4/22$139
Tue 6/45:55 amSTL - PHX
1 stop7h 28mAmerican Airlines
Tue 6/116:56 pmPHX - STL
Nonstop2h 54mAmerican Airlines
Deal found 4/22$140
Tue 5/145:55 amSTL - PHX
1 stop7h 28mAmerican Airlines
Fri 5/1712:59 amPHX - STL
1 stop6h 54mAmerican Airlines
Deal found 4/22$148
Sat 5/116:18 pmSTL - PHX
Nonstop3h 24mAmerican Airlines
Fri 5/1712:59 amPHX - STL
1 stop6h 54mAmerican Airlines
Deal found 4/22$149
Tue 5/78:00 amSTL - PHX
Nonstop3h 24mAmerican Airlines
Sat 5/116:56 pmPHX - STL
Nonstop3h 00mAmerican Airlines
Deal found 4/22$151
Fri 7/56:09 pmSTL - PHX
Nonstop3h 11mAmerican Airlines
Tue 7/96:55 pmPHX - STL
Nonstop3h 00mAmerican Airlines
Deal found 4/22$155
Sat 5/1111:09 amSTL - PHX
1 stop5h 54mAmerican Airlines
Fri 5/1712:59 amPHX - STL
1 stop6h 54mAmerican Airlines
Deal found 4/22$158
Mon 5/68:00 amSTL - PHX
Nonstop3h 24mAmerican Airlines
Thu 5/96:56 pmPHX - STL
Nonstop3h 00mAmerican Airlines
Deal found 4/23$181

  • If you’re traveling from St. Louis to Phoenix Sky Harbor Intl Airport, one of the more common airlines traveling that route is American Airlines. Flights from American Airlines traveling this route typically cost $511.19 RT. This price is typically 26% more expensive than other airlines that offer St. Louis to Phoenix Sky Harbor Intl Airport flights. When booking this route, the cheapest RT price found was $301. The most popular departure airport in St. Louis when flying to Phoenix Sky Harbor Intl Airport is Lambert-St Louis Airport. The most popular airport to fly into when visiting Phoenix Sky Harbor Intl Airport is Phoenix Sky Harbor Intl Airport. When flying from St. Louis to Phoenix Sky Harbor Intl Airport, American Airlines flights are 6% more popular than any other airline flying that same route.

Cheap Delta flights from St. Louis to Sky Harbor Intl

Explore cheap flight options specifically provided by Delta for the route between St. Louis and Sky Harbor Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,086,534 searches. Data last updated April 23, 2024.
Some of the lowest-priced Delta flights we've found at this time heading from St. Louis to Phoenix. Check back soon if you're not seeing flights that suit your needs.
Tue 6/410:20 amSTL - PHX
1 stop7h 30mDelta
Tue 6/185:37 pmPHX - STL
1 stop5h 03mDelta
Deal found 4/22$196
Wed 5/297:55 amSTL - PHX
1 stop6h 23mDelta
Fri 5/311:42 pmPHX - STL
1 stop6h 10mDelta
Deal found 4/22$197
Mon 6/106:20 pmSTL - PHX
1 stop7h 14mDelta
Fri 6/1412:40 amPHX - STL
1 stop7h 50mDelta
Deal found 4/22$213
Tue 5/286:11 amSTL - PHX
1 stop8h 09mDelta
Fri 6/712:40 amPHX - STL
1 stop7h 50mDelta
Deal found 4/22$216
Sat 6/226:06 amSTL - PHX
1 stop8h 20mDelta
Fri 6/2812:40 amPHX - STL
1 stop7h 50mDelta
Deal found 4/22$223
Wed 5/15:30 pmSTL - PHX
1 stop8h 29mDelta
Thu 5/21:47 pmPHX - STL
1 stop5h 30mDelta
Deal found 4/22$226
Wed 5/15:30 pmSTL - PHX
1 stop8h 29mDelta
Sat 5/41:25 pmPHX - STL
1 stop5h 50mDelta
Deal found 4/22$230
Fri 7/56:06 amSTL - PHX
1 stop7h 05mDelta
Tue 7/95:37 pmPHX - STL
1 stop5h 02mDelta
Deal found 4/22$233
Thu 5/26:50 pmSTL - PHX
1 stop7h 09mDelta
Fri 5/35:35 pmPHX - STL
1 stop5h 11mDelta
Deal found 4/22$280

  • One of the most popular airlines traveling from St. Louis to Phoenix Sky Harbor Intl Airport is Delta. Flights from Delta traveling this route typically cost $418.21 RT. This price is typically 47% cheaper than other airlines that offer St. Louis to Phoenix Sky Harbor Intl Airport flights. When booking this route, the cheapest RT price found was $274. Lambert-St Louis Airport is the most common St. Louis airport to take off from when flying to Phoenix Sky Harbor Intl Airport. Phoenix Sky Harbor Intl Airport is the most popular arrival airport in Phoenix Sky Harbor Intl Airport. When flying from St. Louis to Phoenix Sky Harbor Intl Airport, Delta flights are 4% more popular than any other airline flying that same route.

Cheap St. Louis to Sky Harbor Intl flights in April & May 2024

Find cheap flight options from St. Louis to Sky Harbor Intl specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,086,534 searches. Prices were last updated on April 23, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Phoenix in 2024. More deals are always being added, so be sure to check back regularly.
Wed 5/19:39 pmSTL - PHX
Nonstop3h 28mFrontier
Sat 5/46:45 amPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$78
Sat 5/1112:39 pmSTL - PHX
Nonstop3h 28mFrontier
Thu 5/1611:25 amPHX - STL
1 stop8h 41mFrontier
Deal found 4/21$84
Wed 5/89:39 pmSTL - PHX
Nonstop3h 28mFrontier
Fri 5/104:33 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$88
Wed 5/89:39 pmSTL - PHX
Nonstop3h 28mFrontier
Fri 5/174:32 pmPHX - STL
Nonstop2h 59mFrontier
Deal found 4/23$89
Tue 5/144:50 pmSTL - PHX
1 stop5h 35mFrontier
Sat 5/188:12 pmPHX - STL
1 stop12h 01mFrontier
Deal found 4/22$90
Mon 5/139:53 pmSTL - PHX
Nonstop3h 28mFrontier
Thu 5/1611:25 amPHX - STL
1 stop8h 41mFrontier
Deal found 4/21$94
Tue 5/74:50 pmSTL - PHX
1 stop9h 15mFrontier
Sat 5/116:45 amPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$98
Thu 5/167:23 pmSTL - PHX
1 stop15h 01mFrontier
Thu 5/2312:43 pmPHX - STL
1 stop19h 30mFrontier
Deal found 4/22$100
Mon 5/67:51 pmSTL - PHX
1 stop19h 25mFrontier
Mon 5/134:48 pmPHX - STL
1 stop27h 11mFrontier
Deal found 4/21$101

St. Louis to Sky Harbor Intl 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Sky Harbor Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,086,534 searches. Data last updated April 23, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Phoenix in 2024. More deals are always being added, so be sure to check back regularly.
Wed 5/19:39 pmSTL - PHX
Nonstop3h 28mFrontier
Sat 5/46:45 amPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$78
Sat 5/1112:39 pmSTL - PHX
Nonstop3h 28mFrontier
Thu 5/1611:25 amPHX - STL
1 stop8h 41mFrontier
Deal found 4/21$84
Wed 5/89:39 pmSTL - PHX
Nonstop3h 28mFrontier
Fri 5/104:33 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$88
Wed 5/89:39 pmSTL - PHX
Nonstop3h 28mFrontier
Fri 5/174:32 pmPHX - STL
Nonstop2h 59mFrontier
Deal found 4/23$89
Tue 5/144:50 pmSTL - PHX
1 stop5h 35mFrontier
Sat 5/188:12 pmPHX - STL
1 stop12h 01mFrontier
Deal found 4/22$90
Mon 5/139:53 pmSTL - PHX
Nonstop3h 28mFrontier
Thu 5/1611:25 amPHX - STL
1 stop8h 41mFrontier
Deal found 4/21$94
Tue 5/74:50 pmSTL - PHX
1 stop9h 15mFrontier
Sat 5/116:45 amPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$98
Thu 5/167:23 pmSTL - PHX
1 stop15h 01mFrontier
Thu 5/2312:43 pmPHX - STL
1 stop19h 30mFrontier
Deal found 4/22$100
Mon 5/67:51 pmSTL - PHX
1 stop19h 25mFrontier
Mon 5/134:48 pmPHX - STL
1 stop27h 11mFrontier
Deal found 4/21$101

Non-stop flights to Sky Harbor Intl from St. Louis

Discover non-stop flight options from St. Louis to Sky Harbor Intl. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,086,534 searches. Data last updated April 23, 2024.
For a quicker trip, book one of these direct flights from St. Louis to Phoenix. Users can also choose from other St. Louis to Phoenix flights by using the search form above.
Wed 5/89:39 pmSTL - PHX
Nonstop3h 28mFrontier
Sat 5/116:45 amPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$78
Wed 5/89:39 pmSTL - PHX
Nonstop3h 28mFrontier
Fri 5/104:33 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$88
Wed 5/89:39 pmSTL - PHX
Nonstop3h 28mFrontier
Fri 5/174:32 pmPHX - STL
Nonstop2h 59mFrontier
Deal found 4/23$89
Mon 5/69:53 pmSTL - PHX
Nonstop3h 28mFrontier
Mon 5/134:09 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 4/21$98
Wed 5/2910:21 pmSTL - PHX
Nonstop3h 17mFrontier
Fri 5/314:32 pmPHX - STL
Nonstop2h 59mFrontier
Deal found 4/22$108
Wed 5/2210:21 pmSTL - PHX
Nonstop3h 17mFrontier
Sat 5/255:50 pmPHX - STL
Nonstop2h 59mFrontier
Deal found 4/22$114
Fri 6/1412:38 pmSTL - PHX
Nonstop3h 17mFrontier
Fri 6/216:44 amPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$118
Sat 9/2811:41 pmSTL - PHX
Nonstop3h 18mFrontier
Sat 10/55:50 pmPHX - STL
Nonstop3h 01mFrontier
Deal found 4/21$124
Tue 5/148:00 amSTL - PHX
Nonstop3h 24mAmerican Airlines
Sat 5/186:56 pmPHX - STL
Nonstop3h 00mAmerican Airlines
Deal found 4/22$131

St. Louis to Sky Harbor Intl flights leaving soon

Find last-minute flight options from St. Louis to Sky Harbor Intl for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,086,534 searches. Data last updated April 23, 2024.
Book one of these great deals on flights from St. Louis to Phoenix. Users should examine the flight details to ensure there are no surprises.
Wed 5/19:39 pmSTL - PHX
Nonstop3h 28mFrontier
Sat 5/46:45 amPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$78
Wed 5/19:39 pmSTL - PHX
Nonstop3h 28mFrontier
Fri 5/34:33 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$94
Mon 4/299:53 pmSTL - PHX
Nonstop3h 28mFrontier
Mon 5/64:09 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 4/21$98
Wed 5/18:04 pmSTL - PHX
1 stop6h 01mFrontier
Sat 5/46:45 amPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$102
Fri 5/310:17 pmSTL - PHX
Nonstop3h 27mFrontier
Tue 5/79:30 pmPHX - STL
1 stop10h 17mFrontier
Deal found 4/23$114
Mon 4/299:53 pmSTL - PHX
Nonstop3h 28mFrontier
Mon 5/67:45 pmPHX - STL
1 stop24h 14mFrontier
Deal found 4/21$117
Wed 5/111:33 amSTL - PHX
1 stop24h 52mMultiple Airlines
Sat 5/46:45 amPHX - STL
Nonstop2h 54mMultiple Airlines
Deal found 4/22$124
Mon 4/298:04 pmSTL - PHX
1 stop6h 01mFrontier
Mon 5/64:09 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 4/23$128
Wed 5/18:04 pmSTL - PHX
1 stop6h 01mFrontier
Sat 5/46:45 amPHX - STL
Nonstop2h 54mFrontier
Deal found 4/22$134

One-way flights to Sky Harbor Intl from St. Louis

Search for one-way flight options from St. Louis to Sky Harbor Intl. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,086,534 searches. Data last updated April 23, 2024.
Users traveling one-way from St. Louis to Phoenix can select one of these great deals. Users in need of a round-trip flight from St. Louis to Phoenix instead should update the search form at the top of page.
Wed 5/19:39 pmSTL - PHX
Nonstop3h 28mFrontier
Deal found 4/22$39
Thu 5/235:01 pmSTL - PHX
1 stop7h 26mFrontier
Deal found 4/22$45
Sat 6/111:41 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/22$49
Fri 6/2112:38 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/22$59
Sat 5/118:04 pmSTL - PHX
1 stop12h 13mFrontier
Deal found 4/22$65
Tue 8/62:35 pmSTL - PHX
Nonstop3h 17mAmerican Airlines
Deal found 4/22$66
Mon 5/67:51 pmSTL - PHX
1 stop21h 32mFrontier
Deal found 4/22$69
Mon 4/295:02 pmSTL - PHX
1 stop19h 33mSpirit Airlines
Deal found 4/22$70
Mon 5/134:05 pmSTL - PHX
1 stop20h 27mSpirit Airlines
Deal found 4/21$73

Find flights from St. Louis to Sky Harbor Intl within your budget

Customize your flight search to find flights from St. Louis to Sky Harbor Intl 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 3,086,534 searches. Data last updated April 23, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$78 - $196

Route

Depart

Return

Price

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Wed 5/8

Nonstop3h 28m

Phoenix Sky Harbor Intl

Sat 5/11

Nonstop2h 54m

$78

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Sat 5/11

Nonstop3h 28m

Phoenix Sky Harbor Intl

Thu 5/16

1 stop8h 41m

$84

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Wed 5/8

Nonstop3h 28m

Phoenix Sky Harbor Intl

Fri 5/10

Nonstop2h 54m

$88

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Wed 5/8

Nonstop3h 28m

Phoenix Sky Harbor Intl

Fri 5/17

Nonstop2h 59m

$89

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Tue 5/14

1 stop5h 35m

Phoenix Sky Harbor Intl

Sat 5/18

1 stop12h 01m

$90

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Tue 5/14

Nonstop3h 24m

Phoenix Sky Harbor Intl

Sat 5/18

Nonstop3h 00m

$131

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Wed 5/22

1 stop24h 44m

Phoenix Sky Harbor Intl

Tue 5/28

1 stop21h 21m

$134

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Wed 5/29

1 stop24h 44m

Phoenix Sky Harbor Intl

Fri 5/31

Nonstop2h 59m

$156

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Tue 6/4

1 stop7h 30m

Phoenix Sky Harbor Intl

Tue 6/18

1 stop5h 03m

$196

Flights are sorted by cheapest first

Deals found on 4/22

When is the best time to book a flight from St. Louis to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Sky Harbor Intl. Price data was last updated on January 28, 2024.
Booking 4 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Phoenix Sky Harbor Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from St. Louis to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Sky Harbor Intl. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Phoenix Sky Harbor Intl Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Sky Harbor Intl by month

Plan your trip from St. Louis to Sky Harbor Intl by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Sky Harbor Intl is currently $59 while a round-trip flight costs $116. Price data was last updated on April 21, 2024.

Currently, January is the cheapest month in which you can book a flight from St. Louis to Phoenix Sky Harbor Intl Airport (average of $251). Flying from St. Louis to Phoenix Sky Harbor Intl Airport in June is currently the most expensive (average of $340). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$251

February

$295

March

$318

April

$301

May

$309

June

$340

July

$318

August

$269

September

$264

October

$265

November

$289

December

$256

Temperature and rainfall in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average temperature and rainfall totals by month.

PHX

Temperature

55.4 - 95 °F

Reviews of airlines servicing Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor Intl. 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 Sky Harbor Intl. Reviews last updated April 23, 2024.
Get a feel of what it's like to fly with American Airlines, Delta and Frontier from St. Louis to Phoenix by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,193 reviews
Check prices

Food

7.4

Overall

8.2

Comfort

8.1

Crew

8.7

Boarding

8.3

Entertainment

7.8

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

Southwest
8.2
Very good
6,193 reviews
Southwest
8.2
Very good
6,193 reviews
Check prices

Food

7.4

Overall

8.2

Comfort

8.1

Crew

8.7

Boarding

8.3

Entertainment

7.8

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

Alaska Airlines
8.1
Very good
9,111 reviews
Southwest
8.2
Very good
6,193 reviews
Check prices

Food

7.4

Overall

8.2

Comfort

8.1

Crew

8.7

Boarding

8.3

Entertainment

7.8

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

Delta
8.1
Very good
11,028 reviews
Southwest
8.2
Very good
6,193 reviews
Check prices

Food

7.4

Overall

8.2

Comfort

8.1

Crew

8.7

Boarding

8.3

Entertainment

7.8

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

United Airlines
7.4
Good
11,272 reviews
Southwest
8.2
Very good
6,193 reviews
Check prices

Food

7.4

Overall

8.2

Comfort

8.1

Crew

8.7

Boarding

8.3

Entertainment

7.8

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

American Airlines
7.3
Good
14,914 reviews
Southwest
8.2
Very good
6,193 reviews
Check prices

Food

7.4

Overall

8.2

Comfort

8.1

Crew

8.7

Boarding

8.3

Entertainment

7.8

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Sky Harbor Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Phoenix Sky Harbor Intl?

    For a flight from St. Louis to Phoenix Sky Harbor Intl, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 10 outbound flights to Phoenix Sky Harbor Intl per day. 5 airlines have flights to Phoenix Sky Harbor Intl from Lambert-St Louis on a regular basis.

  • Can I find flights from St. Louis to Phoenix Sky Harbor Intl Airport for under $100 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Phoenix Sky Harbor Intl Airport for under $100. The cheapest flight booked recently is on Frontier for just $78, but on average you can expect to pay $102.

  • Are there nonstop flights from St. Louis to Phoenix Sky Harbor Intl Airport for under $100 on Cheapflights?

    Cheapflights has at least 20 direct flights from St. Louis to Phoenix Sky Harbor Intl Airport under $100. A good price for a nonstop flight from St. Louis to Phoenix Sky Harbor Intl Airport is less than $155.

  • Are there last-minute flights available from St. Louis to Phoenix Sky Harbor Intl Airport for under $100?

    There are currently 20+ open flights from St. Louis to Phoenix Sky Harbor Intl Airport within the next 7 days for less than $100.

  • What days are nonstop flights available from St. Louis to Phoenix Sky Harbor Intl Airport?

    Nonstop flights can be found on the following days: Friday.

  • How many flights depart from St. Louis to Phoenix Sky Harbor Intl Airport on average per day?

    On average 1 flight departs from St. Louis to Phoenix Sky Harbor Intl Airport per day.
    Morning (6am - Noon) - 100% of flight departures

  • How long is the flight from St. Louis to Phoenix Sky Harbor Intl Airport?

    A quick flight from St. Louis to Phoenix Sky Harbor Intl Airport can take about 3h 24m. Frontier provides one of the quickest options available for as low as $78. There are 1266 mi between St. Louis and Phoenix Sky Harbor Intl Airport. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from St. Louis to Phoenix Sky Harbor Intl Airport round-trip?

    Flying on Frontier is currently your cheapest option to Phoenix Sky Harbor Intl Airport, with prices starting at $78. Additional round-trip tickets that might be worth considering are offered by American Airlines and Spirit Airlines, with the lowest prices starting at $131 and $134, respectively. Frontier is priced at 80% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Phoenix Sky Harbor Intl Airport one-way?

    One-way options have recently been found by users for as low as $39 on Frontier. Other airlines that offer cheap prices include American Airlines from $66 and Spirit Airlines from $70 one-way.

  • What are the most popular airlines that fly from St. Louis to Phoenix Sky Harbor Intl Airport?

    Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from St. Louis to Phoenix Sky Harbor Intl Airport.

  • What are the most reliable airlines from St. Louis to Phoenix Sky Harbor Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from St. Louis to Phoenix Sky Harbor Intl Airport on time: Frontier (100%), American Airlines (89%), Alaska Airlines (89%).

  • What are the cheapest flights from St. Louis to Phoenix Sky Harbor Intl Airport?

    On average you can expect to pay $735 for a flight from St. Louis to Phoenix Sky Harbor Intl Airport. The cheapest flight overall is $60 while the most popular route, (Lambert-St Louis - Phoenix Sky Harbor Intl) is currently priced at $124.

  • What does STL to PHX mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Lambert-St Louis Airport to Phoenix Sky Harbor Intl Airport flight would often be abbreviated as a STL to PHX flight.

  • Can I find deals for flights from St. Louis to Sky Harbor Intl that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Sky Harbor Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Sky Harbor Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Sky Harbor Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Sky Harbor Intl that include hotel bookings?

    Yes. In addition to deals on St. Louis to Sky Harbor Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Sky Harbor Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Sky Harbor Intl.

  • Can I find deals for business class flights from St. Louis to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from St. Louis to Sky Harbor Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Sky Harbor Intl that allow pets onboard?

    Many airlines flying from St. Louis to Sky Harbor Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Sky Harbor Intl?

    Yes, you can often find last-minute deals on St. Louis to Sky Harbor Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Phoenix Sky Harbor Intl Airport flight deals updated?

    The St. Louis to Phoenix Sky Harbor Intl Airport flight deals you see on this page were last updated on 4/23.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Sky Harbor Intl
See prices for flight routes from nearby airports that may be better suited for you.

Kansas City to Sky Harbor Intl flights
Springfield to Sky Harbor Intl flights
Columbia to Sky Harbor Intl flights

Top 5 airlines flying from St. Louis to Sky Harbor Intl

Discover the top 5 airlines that operate flights from St. Louis to Sky Harbor Intl. 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 3,086,534 searches. Data last updated April 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$192FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$110Average$148FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$256Average$424FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$274Average$418FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$301Average$511FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Boston to San Francisco flights
New York to Niagara Falls, New York flights
Detroit to New Orleans flights
USA to Dhaka flights
Denver to Nashville flights
Austin to San Francisco flights
Charlotte to Las Vegas flights
Chicago to New York flights
USA to Italy flights
Pensacola to Orlando flights
California to Texas flights
St. Louis to Peoria, Illinois flights

Search flights from St. Louis to Sky Harbor Intl by cabin class

Find flights from St. Louis to Sky Harbor Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from St. Louis to Sky Harbor Intl

Find hourly flight availability from St. Louis to Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 23, 2024.
32%of flight departuresEarly morningMidnight to 6 am
12%of flight departuresMorning6 am to noon
52%of flight departuresAfternoonNoon to 6 pm
4%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from St. Louis to Sky Harbor Intl

Explore weekly flight availability from St. Louis to Sky Harbor Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 23, 2024.
Sunday13daily flights
Monday11daily flights
Tuesday11daily flights
Wednesday11daily flights
Thursday11daily flights
Friday10daily flights
Saturday9daily flights

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Bodø
Flights to Bar Harbor
Flights to Bastia Poretta
Flights to Dharamshala Kangra
Flights to Biarritz Parme
Flights to Menorca/Mahon
Flights to Milas–Bodrum
Flights to Dipolog
Flights to Kagoshima
Flights to Edremit/Korfez
Flights to Bourgas
Flights to Ordu/Giresun
Flights to Chios
Flights to Argostoli Cephalonia
Flights to Barrow Wiley Post/W.Rogers
Flights to Kristiansand Kjevik
Flights to Zakynthos Dionsios Salomos
Flights to Batumi
Flights to Guilin
Flights to Pau Pyrénées
Flights to Fez Sais
Flights to Kos
Flights to Mytilene
Flights to Norwich Arpt

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Sky Harbor Intl?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from St. Louis to Sky Harbor Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Sky Harbor Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from St. Louis to Sky Harbor Intl.

Can Cheapflights find flights from St. Louis to Sky Harbor Intl with no change fees?

Yes, we can. To see specific flights from St. Louis to Sky Harbor Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from St. Louis to Sky Harbor Intl become cheaper?

Not ready to book yet? You can track prices for flights from St. Louis to Sky Harbor Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines