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Cheap flights from Sky Harbor Intl (PHX) to St. Louis (STL) 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 5/8. 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.
PHX — STL
May 2 — May 91
From?
To?
Thu 5/2
Thu 5/9
1 adult, Economy
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The best prices from Phoenix Sky Harbor Intl to Lambert-St Louis are usually found in February or January, booked 70 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Sky Harbor Intl to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to St. Louis (STL). 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 27, 2024.

Popular in

March

Cheapest in

February

Round-trip from

$323

One-way from

$79
High demand for flights, 11% potential price rise
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Best time to find cheap flights, 14% potential price drop
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From Phoenix Sky Harbor Intl to Lambert-St Louis
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One-way flight from Phoenix Sky Harbor Intl to Lambert-St Louis
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What is the cheapest day to fly round-trip from Phoenix Sky Harbor Intl Airport to St. Louis?

Travelers have found that booking a Monday departure is the best way to save up to 30% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Phoenix Sky Harbor Intl Airport to St. Louis?

To save up to 10% on this flight, we recommend booking at least 11 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Phoenix Sky Harbor Intl Airport to St. Louis from $261 1-2 weeks out and tickets from $633 for flights departing within the next 72 hours.

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

February can be a great time to fly to St. Louis from Phoenix Sky Harbor Intl Airport with a flight ticket averaging about $391. Cheapflights users have found deals in the month of February for as cheap as $159. The most expensive prices can be found in the month of March.

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

A simple way to save on the total cost of your ticket is to fly from Phoenix Sky Harbor Intl Airport to St. Louis in the evening. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight at noon.

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

Explore cheap flight options specifically provided by Spirit Airlines for the route between Sky Harbor Intl and St. Louis. 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 3,068,117 searches. Data last updated April 27, 2024.
Take a look at some of the lowest-priced Spirit Airlines flights heading from Phoenix to St. Louis. Make sure to double check the flight details before booking.
Tue 5/2111:25 amPHX - STL
1 stop21h 21mSpirit Airlines
Wed 5/2911:36 amSTL - PHX
1 stop24h 44mSpirit Airlines
Deal found 4/26$114
Thu 6/611:36 amPHX - STL
1 stop24h 40mSpirit Airlines
Mon 6/102:41 pmSTL - PHX
1 stop22h 08mSpirit Airlines
Deal found 4/25$176
Fri 5/106:40 amPHX - STL
2 stops25h 48mSpirit Airlines
Mon 5/134:05 pmSTL - PHX
2 stops22h 25mSpirit Airlines
Deal found 4/26$313
Fri 5/106:40 amPHX - STL
2 stops25h 48mSpirit Airlines
Mon 5/134:05 pmSTL - PHX
3 stops18h 04mSpirit Airlines
Deal found 4/26$314
Tue 5/712:35 pmPHX - STL
2 stops20h 11mSpirit Airlines
Thu 5/97:30 pmSTL - PHX
2 stops22h 20mSpirit Airlines
Deal found 4/26$360
Fri 5/35:30 amPHX - STL
2 stops27h 10mSpirit Airlines
Sun 5/56:24 pmSTL - PHX
2 stops23h 25mSpirit Airlines
Deal found 4/26$507
Fri 5/35:30 amPHX - STL
2 stops27h 10mSpirit Airlines
Sun 5/56:24 pmSTL - PHX
2 stops23h 25mSpirit Airlines
Deal found 4/26$575
Mon 5/611:25 amPHX - STL
2 stops20h 19mSpirit Airlines
Fri 5/104:05 pmSTL - PHX
2 stops16h 24mSpirit Airlines
Deal found 4/26$625

Cheap Frontier flights from Sky Harbor Intl to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Sky Harbor Intl and St. Louis. 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 3,068,117 searches. Data last updated April 27, 2024.
Browse through some of the cheapest Frontier flights traveling from Phoenix to St. Louis. Ensure the flight price, dates, time, and airline match your criteria before you book.
Tue 5/218:07 pmPHX - STL
1 stop12h 06mFrontier
Wed 5/2210:21 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/26$84
Wed 5/1510:45 amPHX - STL
Nonstop2h 54mFrontier
Wed 5/227:23 pmSTL - PHX
1 stop29h 04mFrontier
Deal found 4/26$85
Wed 5/1510:45 amPHX - STL
Nonstop2h 54mFrontier
Wed 5/2210:21 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/26$88
Tue 5/217:30 amPHX - STL
1 stop12h 09mFrontier
Wed 5/2910:21 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/26$94
Mon 5/64:09 pmPHX - STL
Nonstop2h 54mFrontier
Fri 5/1010:17 pmSTL - PHX
Nonstop3h 27mFrontier
Deal found 4/26$98
Tue 5/212:50 pmPHX - STL
1 stop17h 23mFrontier
Wed 5/227:23 pmSTL - PHX
1 stop29h 04mFrontier
Deal found 4/26$100
Wed 6/55:08 pmPHX - STL
Nonstop2h 59mFrontier
Mon 6/1010:59 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/25$108
Fri 6/75:05 pmPHX - STL
Nonstop2h 54mFrontier
Mon 6/1010:59 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/25$118
Wed 5/157:50 pmPHX - STL
1 stop12h 23mFrontier
Wed 5/227:23 pmSTL - PHX
1 stop18h 25mFrontier
Deal found 4/26$119

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

Find cheap flight options from Sky Harbor Intl to St. Louis specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,068,117 searches. Prices were last updated on April 27, 2024.
Scroll through some of the best deals on flights from Phoenix to St. Louis in 2024. Check back regularly for other flight deals.
Tue 5/218:07 pmPHX - STL
1 stop12h 06mFrontier
Wed 5/2210:21 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/26$84
Wed 5/1510:45 amPHX - STL
Nonstop2h 54mFrontier
Wed 5/227:23 pmSTL - PHX
1 stop29h 04mFrontier
Deal found 4/26$85
Sat 5/46:45 amPHX - STL
Nonstop2h 54mFrontier
Mon 5/69:53 pmSTL - PHX
Nonstop3h 28mFrontier
Deal found 4/26$88
Tue 5/217:30 amPHX - STL
1 stop12h 09mFrontier
Wed 5/2910:21 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/26$94
Mon 5/64:09 pmPHX - STL
Nonstop2h 54mFrontier
Fri 5/1010:17 pmSTL - PHX
Nonstop3h 27mFrontier
Deal found 4/26$98
Tue 5/212:50 pmPHX - STL
1 stop17h 23mFrontier
Wed 5/227:23 pmSTL - PHX
1 stop29h 04mFrontier
Deal found 4/26$100
Tue 5/2111:25 amPHX - STL
1 stop21h 21mSpirit Airlines
Wed 5/2911:36 amSTL - PHX
1 stop24h 44mSpirit Airlines
Deal found 4/26$114
Fri 5/244:32 pmPHX - STL
Nonstop2h 59mFrontier
Fri 5/3110:21 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/26$118
Wed 5/157:50 pmPHX - STL
1 stop12h 23mFrontier
Wed 5/227:23 pmSTL - PHX
1 stop18h 25mFrontier
Deal found 4/26$119

Sky Harbor Intl to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Sky Harbor Intl and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 27, 2024.
Scroll through some of the best deals on flights from Phoenix to St. Louis in 2024. Check back regularly for other flight deals.
Tue 5/218:07 pmPHX - STL
1 stop12h 06mFrontier
Wed 5/2210:21 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/26$84
Wed 5/1510:45 amPHX - STL
Nonstop2h 54mFrontier
Wed 5/227:23 pmSTL - PHX
1 stop29h 04mFrontier
Deal found 4/26$85
Sat 5/46:45 amPHX - STL
Nonstop2h 54mFrontier
Mon 5/69:53 pmSTL - PHX
Nonstop3h 28mFrontier
Deal found 4/26$88
Tue 5/217:30 amPHX - STL
1 stop12h 09mFrontier
Wed 5/2910:21 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/26$94
Mon 5/64:09 pmPHX - STL
Nonstop2h 54mFrontier
Fri 5/1010:17 pmSTL - PHX
Nonstop3h 27mFrontier
Deal found 4/26$98
Tue 5/212:50 pmPHX - STL
1 stop17h 23mFrontier
Wed 5/227:23 pmSTL - PHX
1 stop29h 04mFrontier
Deal found 4/26$100
Wed 6/55:08 pmPHX - STL
Nonstop2h 59mFrontier
Mon 6/1010:59 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/25$108
Tue 5/2111:25 amPHX - STL
1 stop21h 21mSpirit Airlines
Wed 5/2911:36 amSTL - PHX
1 stop24h 44mSpirit Airlines
Deal found 4/26$114
Fri 5/244:32 pmPHX - STL
Nonstop2h 59mFrontier
Fri 5/3110:21 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/26$118

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

Discover non-stop flight options from Sky Harbor Intl to St. Louis. 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 3,068,117 searches. Data last updated April 27, 2024.
Consider booking one of these non-stop flights heading from Phoenix to St. Louis. Users can also choose from other Phoenix to St. Louis flights by using the search form above.
Wed 5/1510:45 amPHX - STL
Nonstop2h 54mFrontier
Wed 5/2210:21 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/26$88
Fri 5/104:33 pmPHX - STL
Nonstop2h 54mFrontier
Mon 5/139:53 pmSTL - PHX
Nonstop3h 28mFrontier
Deal found 4/26$98
Wed 6/55:08 pmPHX - STL
Nonstop2h 59mFrontier
Mon 6/1010:59 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/25$108
Fri 5/244:32 pmPHX - STL
Nonstop2h 59mFrontier
Fri 5/3110:21 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/26$118
Tue 6/116:56 pmPHX - STL
Nonstop2h 54mAmerican Airlines
Thu 6/137:35 amSTL - PHX
Nonstop3h 20mAmerican Airlines
Deal found 4/26$131
Wed 7/33:35 pmPHX - STL
Nonstop3h 01mFrontier
Mon 7/89:26 pmSTL - PHX
Nonstop3h 18mFrontier
Deal found 4/26$134
Fri 5/244:32 pmPHX - STL
Nonstop2h 59mFrontier
Fri 5/3110:21 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/26$144
Fri 7/123:35 pmPHX - STL
Nonstop3h 01mFrontier
Mon 7/229:26 pmSTL - PHX
Nonstop3h 18mFrontier
Deal found 4/26$152
Mon 6/176:44 amPHX - STL
Nonstop2h 54mFrontier
Mon 6/2412:38 pmSTL - PHX
Nonstop3h 17mFrontier
Deal found 4/25$170

Sky Harbor Intl to St. Louis flights leaving soon

Find last-minute flight options from Sky Harbor Intl to St. Louis 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 3,068,117 searches. Data last updated April 27, 2024.
Book one of these great deals on flights from Phoenix to St. Louis. Users should examine the flight details to ensure there are no surprises.
Sat 5/46:45 amPHX - STL
Nonstop2h 54mFrontier
Mon 5/69:53 pmSTL - PHX
Nonstop3h 28mFrontier
Deal found 4/26$88
Mon 5/64:09 pmPHX - STL
Nonstop2h 54mFrontier
Fri 5/1010:17 pmSTL - PHX
Nonstop3h 27mFrontier
Deal found 4/26$98
Mon 5/64:09 pmPHX - STL
Nonstop2h 54mFrontier
Fri 5/105:35 pmSTL - PHX
1 stop8h 30mFrontier
Deal found 4/26$129
Sat 5/46:45 amPHX - STL
Nonstop2h 54mFrontier
Mon 5/68:04 pmSTL - PHX
1 stop26h 21mFrontier
Deal found 4/26$148
Tue 5/711:25 amPHX - STL
1 stop21h 21mMultiple Airlines
Thu 5/911:38 amSTL - PHX
1 stop25h 05mMultiple Airlines
Deal found 4/26$162
Fri 5/34:33 pmPHX - STL
Nonstop2h 54mFrontier
Sun 5/53:29 pmSTL - PHX
1 stop23h 52mFrontier
Deal found 4/26$168
Mon 5/64:48 pmPHX - STL
1 stop27h 11mFrontier
Fri 5/105:35 pmSTL - PHX
1 stop25h 06mFrontier
Deal found 4/26$177
Sat 5/42:42 pmPHX - STL
1 stop17h 36mFrontier
Mon 5/68:04 pmSTL - PHX
1 stop21h 23mFrontier
Deal found 4/26$208
Tue 5/78:45 amPHX - STL
Nonstop3h 03mAmerican Airlines
Thu 5/98:00 amSTL - PHX
Nonstop3h 24mAmerican Airlines
Deal found 4/26$211

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

Search for one-way flight options from Sky Harbor Intl to St. Louis. 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 3,068,117 searches. Data last updated April 27, 2024.
Take a look at some of the one-way flights we've detected from Phoenix to St. Louis. Users in need of a round-trip flight from Phoenix to St. Louis instead should update the search form at the top of page.
Wed 5/83:45 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 4/26$39
Sat 5/255:50 pmPHX - STL
Nonstop2h 59mFrontier
Deal found 4/26$49
Tue 7/3012:16 pmPHX - STL
Nonstop3h 03mAmerican Airlines
Deal found 4/26$66
Tue 9/102:10 pmPHX - STL
1 stop7h 10mAmerican Airlines
Deal found 4/26$74
Tue 7/3011:59 pmPHX - STL
1 stop7h 54mAmerican Airlines
Deal found 4/26$75
Thu 5/166:56 pmPHX - STL
Nonstop3h 00mAmerican Airlines
Deal found 4/26$76
Thu 5/166:25 pmPHX - STL
1 stop15h 55mSun Country Air
Deal found 4/26$79
Mon 5/274:32 pmPHX - STL
Nonstop2h 59mFrontier
Deal found 4/26$85
Fri 5/1011:32 pmPHX - STL
1 stop14h 05mFrontier
Deal found 4/26$86

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

Customize your flight search to find flights from Sky Harbor Intl 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, Cheapflights users made 3,068,117 searches. Data last updated April 27, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$84 - $216

Route

Depart

Return

Price

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 5/21

1 stop12h 06m

Lambert-St Louis

Wed 5/22

Nonstop3h 17m

$84

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 5/15

Nonstop2h 54m

Lambert-St Louis

Wed 5/22

1 stop29h 04m

$85

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 5/15

Nonstop2h 54m

Lambert-St Louis

Wed 5/22

Nonstop3h 17m

$88

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 5/21

1 stop12h 09m

Lambert-St Louis

Wed 5/29

Nonstop3h 17m

$94

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Mon 5/6

Nonstop2h 54m

Lambert-St Louis

Fri 5/10

Nonstop3h 27m

$98

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 5/21

1 stop21h 21m

Lambert-St Louis

Wed 5/29

1 stop24h 44m

$114

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 6/4

1 stop23h 40m

Lambert-St Louis

Sat 6/8

Nonstop3h 16m

$127

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 6/11

Nonstop2h 54m

Lambert-St Louis

Thu 6/13

Nonstop3h 20m

$131

Phoenix Sky Harbor IntlLambert-St Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 6/5

1 stop5h 15m

Lambert-St Louis

Sat 6/8

1 stop8h 20m

$216

Flights are sorted by cheapest first

Deals found on 4/26

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

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to St. Louis. Price data was last updated on January 28, 2024.
To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to St. Louis, you should look to book at least 70 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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When is the cheapest time to fly from Phoenix Sky Harbor Intl Airport to St. Louis?

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

Plan your trip from Sky Harbor Intl to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Sky Harbor Intl to St. Louis is currently $70 while a round-trip flight costs $115. Price data was last updated on April 21, 2024.

Currently, September is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to St. Louis (average of $323). Flying from Phoenix Sky Harbor Intl Airport to St. Louis in July is currently the most expensive (average of $378). 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

$326

February

$331

March

$357

April

$337

May

$350

June

$373

July

$378

August

$336

September

$323

October

$323

November

$336

December

$326

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated April 27, 2024.
To help decide which airline to fly from Phoenix to St. Louis, see what other customers have to say about Spirit Airlines, Frontier and Alaska Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Comfort

7.9

Overall

8.1

Food

7.3

Boarding

8.2

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,115 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Comfort

7.9

Overall

8.1

Food

7.3

Boarding

8.2

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.1
Very good
10,966 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Comfort

7.9

Overall

8.1

Food

7.3

Boarding

8.2

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
11,228 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Comfort

7.9

Overall

8.1

Food

7.3

Boarding

8.2

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,889 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Comfort

7.9

Overall

8.1

Food

7.3

Boarding

8.2

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Sun Country Air
7.3
Good
658 reviews
Alaska Airlines
8.1
Very good
9,115 reviews
Check prices

Comfort

7.9

Overall

8.1

Food

7.3

Boarding

8.2

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to St. Louis. 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 into for flights to St. Louis from Phoenix Sky Harbor Intl?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Phoenix Sky Harbor Intl. Booking flights from Phoenix Sky Harbor Intl to Lambert-St Louis (STL) should be relatively easy as there are 9 daily inbound flights from Phoenix Sky Harbor Intl from 5 different airlines.

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

    Yes, there are multiple flights from Phoenix Sky Harbor Intl Airport to St. Louis for under $100. The cheapest flight booked recently is on Frontier for just $84, but on average you can expect to pay $117.

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

    Cheapflights has at least 20 direct flights from Phoenix Sky Harbor Intl Airport to St. Louis under $100. A good price for a nonstop flight from Phoenix Sky Harbor Intl Airport to St. Louis is less than $200.

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

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

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

    Currently priced at $84, Frontier will fly you from Phoenix Sky Harbor Intl Airport to St. Louis and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and American Airlines - these airlines can fly you to your destination from $114 and $131, respectively. You may be able to fly from Phoenix Sky Harbor Intl Airport to St. Louis for 78% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Phoenix Sky Harbor Intl Airport to St. Louis are Frontier ($39), American Airlines ($66), and Sun Country Air ($79).

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

    Before booking your flight from Phoenix Sky Harbor Intl Airport to St. Louis check out the most popular airlines for this route: American Airlines, Delta or Frontier.

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

    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 Phoenix Sky Harbor Intl Airport to St. Louis on time: Frontier (100%), American Airlines (89%), Southwest (85%).

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

    While on average a flight from Phoenix Sky Harbor Intl Airport to St. Louis is generally $218, our data shows the cheapest flight currently is $34. When looking at the most popular route, (Phoenix Sky Harbor Intl - Lambert-St Louis), you can expect to pay $97 for that flight.

  • What does PHX to STL mean?

    Great question - PHX to STL just means Phoenix Sky Harbor Intl Airport to Lambert-St Louis Airport. Now you’ll know what these unique codes when you look for flights!

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

    The amount of baggage you can bring on your Sky Harbor Intl to St. Louis 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 Sky Harbor Intl to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Sky Harbor Intl to St. Louis 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 Sky Harbor Intl to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to St. Louis 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 Sky Harbor Intl to St. Louis that allow pets onboard?

    Many airlines flying from Sky Harbor Intl to St. Louis 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 Sky Harbor Intl to St. Louis?

    Yes, you can often find last-minute deals on Sky Harbor Intl to St. Louis 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 Phoenix Sky Harbor Intl Airport to St. Louis flight deals updated?

    The Phoenix Sky Harbor Intl Airport to St. Louis flight deals you see on this page were last updated on 4/26.

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

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

Discover the top 5 airlines that operate flights from Sky Harbor Intl to St. Louis. 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 3,068,117 searches. Data last updated April 27, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$79Average$207FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$155Average$285FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$271Average$425FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$276Average$424FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$330Average$523FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Phoenix Sky Harbor Intl Airport to London Stansted Airport flights

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

Find flights from Sky Harbor Intl to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Sky Harbor Intl to St. Louis

Find hourly flight availability from Sky Harbor Intl to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 27, 2024.
7%of flight departuresEarly morningMidnight to 6 am
59%of flight departuresMorning6 am to noon
31%of flight departuresAfternoonNoon to 6 pm
3%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Sky Harbor Intl to St. Louis

Explore weekly flight availability from Sky Harbor Intl to St. Louis. 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 27, 2024.
Sunday12daily flights
Monday9daily flights
Tuesday9daily flights
Wednesday9daily flights
Thursday9daily flights
Friday9daily flights
Saturday9daily flights

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Fly with Cheapflights

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

Cheapflights makes it easy to find Sky Harbor Intl to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights simply makes it quick and affordable to book flights from Sky Harbor Intl to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Sky Harbor Intl to St. Louis with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to St. Louis from Sky Harbor Intl today and book when prices fit your budget.

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