Cheap flights from St. Louis (STL) to Mesa, AZ 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
Mar 24 — Mar 311

The best prices from Lambert-St Louis to Mesa 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 Mesa

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Mesa (MS9). 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 March 19, 2024.

Popular in

March

Cheapest in

August

Round-trip from

$251

One-way from

$81
High demand for flights, 18% potential price rise
Best time to find cheap flights, 14% potential price drop
From Lambert-St Louis to Mesa
One-way flight from Lambert-St Louis to Mesa

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

The best pricing can be found in the month of August. Prices to Mesa from St. Louis average $396. You can even find prices in August for less than $396, as users have found deals to Mesa from as low as $154. The month of March appears to be one of the more expensive times to travel to Mesa 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 Mesa (STL - MS9)?

When flying from St. Louis to Mesa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Frontier flights from St. Louis to Mesa

Explore cheap flight options specifically provided by Frontier for the route between St. Louis and Mesa. 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 3,145,932 searches. Data last updated March 19, 2024.
Take a peek at the cheapest Frontier flights we've detected traveling from St. Louis to Mesa. Make sure to check back often as deals are often changing.
Wed 4/179:39 pmSTL - PHX
Nonstop3h 28mFrontier
Wed 4/243:45 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 3/18$78
Wed 4/109:39 pmSTL - PHX
Nonstop3h 28mFrontier
Sat 4/137:15 amPHX - STL
Nonstop2h 54mFrontier
Deal found 3/17$84
Wed 4/179:39 pmSTL - PHX
Nonstop3h 28mFrontier
Wed 4/242:11 pmPHX - STL
1 stop18h 07mFrontier
Deal found 3/18$106
Wed 4/179:39 pmSTL - PHX
Nonstop3h 28mFrontier
Mon 4/224:48 pmPHX - STL
1 stop27h 11mFrontier
Deal found 3/18$108
Tue 5/74:50 pmSTL - PHX
1 stop5h 35mFrontier
Sat 5/116:45 amPHX - STL
Nonstop2h 54mFrontier
Deal found 3/18$109
Wed 4/109:39 pmSTL - PHX
Nonstop3h 28mFrontier
Sat 4/134:46 pmPHX - STL
1 stop15h 32mFrontier
Deal found 3/17$111
Sat 4/1312:59 pmSTL - PHX
Nonstop3h 28mFrontier
Sun 4/1410:40 pmPHX - STL
1 stop9h 38mFrontier
Deal found 3/18$114
Sat 4/1312:59 pmSTL - PHX
Nonstop3h 28mFrontier
Mon 4/157:45 pmPHX - STL
1 stop24h 14mFrontier
Deal found 3/18$116
Wed 4/249:39 pmSTL - PHX
Nonstop3h 28mFrontier
Sun 4/285:05 amPHX - STL
1 stop7h 24mFrontier
Deal found 3/18$117

Cheap Spirit Airlines flights from St. Louis to Mesa

Explore cheap flight options specifically provided by Spirit Airlines for the route between St. Louis and Mesa. 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 3,145,932 searches. Data last updated March 19, 2024.
Some of the lowest-priced Spirit Airlines flights we've found at this time heading from St. Louis to Mesa. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Tue 4/162:35 pmSTL - PHX
2 stops22h 43mSpirit Airlines
Tue 4/2312:35 pmPHX - STL
2 stops20h 08mSpirit Airlines
Deal found 3/17$244
Tue 4/22:25 pmSTL - PHX
2 stops21h 58mSpirit Airlines
Fri 4/512:53 pmPHX - STL
2 stops19h 50mSpirit Airlines
Deal found 3/17$263
Mon 4/155:02 pmSTL - PHX
2 stops27h 15mSpirit Airlines
Mon 4/229:00 amPHX - STL
3 stops26h 44mSpirit Airlines
Deal found 3/18$291
Thu 4/116:24 pmSTL - PHX
2 stops23h 25mSpirit Airlines
Mon 4/154:39 pmPHX - STL
3 stops19h 05mSpirit Airlines
Deal found 3/17$307
Tue 4/22:25 pmSTL - PHX
2 stops21h 58mSpirit Airlines
Thu 4/41:45 amPHX - STL
3 stops30h 58mSpirit Airlines
Deal found 3/17$316
Tue 3/262:25 pmSTL - PHX
2 stops21h 58mSpirit Airlines
Fri 3/293:45 pmPHX - STL
2 stops23h 46mSpirit Airlines
Deal found 3/18$497
Tue 3/262:25 pmSTL - PHX
2 stops21h 58mSpirit Airlines
Sat 3/301:45 amPHX - STL
2 stops13h 46mSpirit Airlines
Deal found 3/18$823
Tue 3/262:25 pmSTL - PHX
2 stops21h 58mSpirit Airlines
Sun 3/3111:17 pmPHX - STL
2 stops15h 28mSpirit Airlines
Deal found 3/18$865
Thu 3/287:48 pmSTL - PHX
2 stops21h 01mSpirit Airlines
Sat 3/301:45 amPHX - STL
2 stops15h 05mSpirit Airlines
Deal found 3/18$894

Cheap St. Louis to Mesa flights in March & April 2024

Find cheap flight options from St. Louis to Mesa specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Prices were last updated on March 19, 2024.
Check out some of the best flight deals from St. Louis to Mesa in 2024. Check back regularly for other flight deals.
Wed 4/179:39 pmSTL - PHX
Nonstop3h 28mFrontier
Wed 4/243:45 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 3/18$78
Wed 4/109:39 pmSTL - PHX
Nonstop3h 28mFrontier
Sat 4/137:15 amPHX - STL
Nonstop2h 54mFrontier
Deal found 3/17$84
Wed 4/109:39 pmSTL - PHX
Nonstop3h 28mMultiple Airlines
Wed 4/1711:25 amPHX - STL
1 stop20h 53mMultiple Airlines
Deal found 3/17$102
Wed 4/179:39 pmSTL - PHX
Nonstop3h 28mFrontier
Wed 4/242:11 pmPHX - STL
1 stop18h 07mFrontier
Deal found 3/18$106
Wed 4/179:39 pmSTL - PHX
Nonstop3h 28mFrontier
Mon 4/224:48 pmPHX - STL
1 stop27h 11mFrontier
Deal found 3/18$108
Sat 3/307:04 pmSTL - PHX
1 stop6h 21mFrontier
Wed 5/13:45 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 3/17$109
Wed 4/109:39 pmSTL - PHX
Nonstop3h 28mFrontier
Sat 4/134:46 pmPHX - STL
1 stop15h 32mFrontier
Deal found 3/17$111
Tue 4/1610:59 pmSTL - PHX
1 stop13h 36mMultiple Airlines
Tue 4/2311:25 amPHX - STL
1 stop20h 53mMultiple Airlines
Deal found 3/17$113
Thu 4/1110:56 pmSTL - PHX
1 stop11h 02mFrontier
Sat 4/137:15 amPHX - STL
Nonstop2h 54mFrontier
Deal found 3/16$114

St. Louis to Mesa 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Mesa in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Check out some of the best flight deals from St. Louis to Mesa in 2024. Check back regularly for other flight deals.
Wed 4/179:39 pmSTL - PHX
Nonstop3h 28mFrontier
Wed 4/243:45 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 3/18$78
Wed 4/109:39 pmSTL - PHX
Nonstop3h 28mFrontier
Sat 4/137:15 amPHX - STL
Nonstop2h 54mFrontier
Deal found 3/17$84
Wed 4/109:39 pmSTL - PHX
Nonstop3h 28mMultiple Airlines
Wed 4/1711:25 amPHX - STL
1 stop20h 53mMultiple Airlines
Deal found 3/17$102
Wed 4/179:39 pmSTL - PHX
Nonstop3h 28mFrontier
Wed 4/242:11 pmPHX - STL
1 stop18h 07mFrontier
Deal found 3/18$106
Wed 4/179:39 pmSTL - PHX
Nonstop3h 28mFrontier
Mon 4/224:48 pmPHX - STL
1 stop27h 11mFrontier
Deal found 3/18$108
Tue 5/74:50 pmSTL - PHX
1 stop5h 35mFrontier
Sat 5/116:45 amPHX - STL
Nonstop2h 54mFrontier
Deal found 3/17$109
Wed 4/109:39 pmSTL - PHX
Nonstop3h 28mFrontier
Sat 4/134:46 pmPHX - STL
1 stop15h 32mFrontier
Deal found 3/17$111
Tue 4/1610:59 pmSTL - PHX
1 stop13h 36mMultiple Airlines
Tue 4/2311:25 amPHX - STL
1 stop20h 53mMultiple Airlines
Deal found 3/17$113
Thu 4/1110:56 pmSTL - PHX
1 stop11h 02mFrontier
Sat 4/137:15 amPHX - STL
Nonstop2h 54mFrontier
Deal found 3/16$114

Non-stop flights to Mesa from St. Louis

Discover non-stop flight options from St. Louis to Mesa. 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 3,145,932 searches. Data last updated March 19, 2024.
Take a look at some of the direct flights traveling from St. Louis to Mesa in the near future. Users can also choose from other St. Louis to Mesa flights by using the search form above.
Wed 4/179:39 pmSTL - PHX
Nonstop3h 28mFrontier
Wed 4/243:45 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 3/18$78
Wed 4/109:39 pmSTL - PHX
Nonstop3h 28mFrontier
Sat 4/137:15 amPHX - STL
Nonstop2h 54mFrontier
Deal found 3/17$84
Wed 4/179:39 pmSTL - PHX
Nonstop3h 28mFrontier
Mon 4/224:09 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 3/18$108
Sat 4/1312:59 pmSTL - PHX
Nonstop3h 28mFrontier
Mon 4/153:58 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 3/18$124
Fri 4/129:34 pmSTL - PHX
Nonstop3h 28mFrontier
Mon 4/153:58 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 3/18$138
Mon 4/159:52 pmSTL - PHX
Nonstop3h 28mFrontier
Mon 4/224:09 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 3/18$158
Fri 4/129:34 pmSTL - PHX
Nonstop3h 28mFrontier
Mon 4/153:58 pmPHX - STL
Nonstop2h 54mFrontier
Deal found 3/18$188
Mon 5/209:26 pmSTL - PHX
Nonstop3h 18mFrontier
Mon 5/273:35 pmPHX - STL
Nonstop3h 01mFrontier
Deal found 3/18$219
Tue 4/305:20 amSTL - PHX
Nonstop3h 26mAmerican Airlines
Tue 4/308:40 amPHX - STL
Nonstop3h 09mAmerican Airlines
Deal found 3/18$225

St. Louis to Mesa flights leaving soon

Find last-minute flight options from St. Louis to Mesa 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 3,145,932 searches. Data last updated March 19, 2024.
Have a look at some of the last-minute flights available departing from St. Louis to Mesa. Users should examine the flight details to ensure there are no surprises.
Tue 3/2610:04 pmSTL - PHX
1 stop11h 05mFrontier
Wed 3/279:44 pmPHX - STL
1 stop22h 31mFrontier
Deal found 3/18$154
Tue 3/2610:04 pmSTL - PHX
1 stop11h 05mFrontier
Thu 3/289:44 pmPHX - STL
1 stop10h 28mFrontier
Deal found 3/18$168
Mon 3/257:37 pmSTL - PHX
1 stop15h 40mFrontier
Wed 3/279:44 pmPHX - STL
1 stop22h 31mFrontier
Deal found 3/18$170
Mon 3/258:45 pmSTL - PHX
1 stop21h 41mFrontier
Mon 4/11:10 pmPHX - STL
1 stop19h 13mFrontier
Deal found 3/18$186
Thu 3/287:37 pmSTL - PHX
1 stop18h 41mFrontier
Mon 4/18:45 pmPHX - STL
1 stop11h 38mFrontier
Deal found 3/18$187
Mon 3/258:45 pmSTL - PHX
1 stop13h 27mFrontier
Fri 3/299:44 pmPHX - STL
1 stop10h 58mFrontier
Deal found 3/18$196
Mon 3/257:37 pmSTL - PHX
1 stop15h 40mFrontier
Thu 3/286:00 amPHX - STL
1 stop14h 15mFrontier
Deal found 3/18$198
Tue 3/262:25 pmSTL - PHX
2 stops12h 15mMultiple Airlines
Wed 3/275:15 amPHX - STL
1 stop25h 06mMultiple Airlines
Deal found 3/18$209
Thu 3/288:24 pmSTL - PHX
2 stops21h 58mFrontier
Mon 4/11:10 pmPHX - STL
1 stop19h 13mFrontier
Deal found 3/18$234

One-way flights to Mesa from St. Louis

Search for one-way flight options from St. Louis to Mesa. 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 3,145,932 searches. Data last updated March 19, 2024.
Take a look at some of the best available options we've come across on one-way flights from St. Louis to Mesa. For those needing a return trip from St. Louis, there is a search form available above.
Wed 5/19:39 pmSTL - PHX
Nonstop3h 28mFrontier
Deal found 3/18$39
Wed 4/109:39 pmSTL - PHX
Nonstop3h 28mFrontier
Deal found 3/18$41
Wed 5/299:26 pmSTL - PHX
Nonstop3h 18mFrontier
Deal found 3/18$49
Mon 4/157:51 pmSTL - PHX
1 stop16h 44mMultiple Airlines
Deal found 3/18$58
Mon 4/229:53 pmSTL - PHX
Nonstop3h 28mFrontier
Deal found 3/18$69
Fri 4/199:34 pmSTL - PHX
Nonstop3h 28mFrontier
Deal found 3/18$70
Fri 5/310:17 pmSTL - PHX
Nonstop3h 27mFrontier
Deal found 3/18$74
Sun 4/711:15 pmSTL - PHX
1 stop9h 54mFrontier
Deal found 3/17$75
Thu 4/1811:18 amSTL - PHX
1 stop14h 47mFrontier
Deal found 3/18$77

Find flights from St. Louis to Mesa within your budget

Customize your flight search to find flights from St. Louis to Mesa 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 3,145,932 searches. Data last updated March 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$78 - $250

Route

Depart

Return

Price

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Wed 4/17

Nonstop3h 28m

Phoenix Sky Harbor Intl

Wed 4/24

Nonstop2h 54m

$78

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Wed 4/10

Nonstop3h 28m

Phoenix Sky Harbor Intl

Sat 4/13

Nonstop2h 54m

$84

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Wed 4/10

Nonstop3h 28m

Phoenix Sky Harbor Intl

Wed 4/17

1 stop20h 53m

$102

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Wed 4/17

Nonstop3h 28m

Phoenix Sky Harbor Intl

Wed 4/24

1 stop18h 07m

$106

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Tue 4/16

1 stop13h 36m

Phoenix Sky Harbor Intl

Tue 4/23

1 stop20h 53m

$113

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Sun 5/19

1 stop16h 06m

Phoenix Sky Harbor Intl

Thu 5/23

1 stop15h 11m

$219

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Tue 5/7

Nonstop3h 24m

Phoenix Sky Harbor Intl

Wed 5/22

Nonstop3h 00m

$231

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Tue 4/16

2 stops22h 43m

Phoenix Sky Harbor Intl

Tue 4/23

2 stops20h 08m

$244

Lambert-St LouisPhoenix Sky Harbor Intl

STL - PHX

STLPHX

Lambert-St Louis

Mon 7/1

1 stop6h 36m

Phoenix Sky Harbor Intl

Thu 7/4

1 stop5h 56m

$250

Flights are sorted by cheapest first

Deals found on 3/18

When is the best time to book a flight from St. Louis to Mesa?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Mesa. Price data was last updated on January 28, 2024.
To ensure you get the cheapest price possible for a flight from St. Louis to Mesa, you should look to book at least 4 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.
Search Deals

When is the cheapest time to fly from St. Louis to Mesa?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Mesa. Price data was last updated on March 10, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Mesa flight should consider departing on Tuesday 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 Mesa by month

Plan your trip from St. Louis to Mesa by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Mesa is currently $61 while a round-trip flight costs $159. Price data was last updated on March 10, 2024.

Currently, January is the cheapest month in which you can book a flight from St. Louis to Mesa (average of $251). Flying from St. Louis to Mesa in June is currently the most expensive (average of $348). 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

$319

April

$312

May

$313

June

$348

July

$320

August

$271

September

$265

October

$266

November

$288

December

$256

Temperature and rainfall in Mesa by month

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

PHX

Temperature

55.4 - 95 °F

Reviews of airlines servicing Mesa

Get insights into the airlines that provide service to Mesa. 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 Mesa. Reviews last updated March 19, 2024.
Get a feel of what it's like to fly with Frontier, Spirit Airlines and American Airlines from St. Louis to Mesa by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
11,551 reviews

Food

7.5

Crew

8.6

Comfort

7.9

Overall

8.1

Entertainment

8.1

Boarding

8.2

Reviews

1 / 10

It was a good experience other than a short delay.

8.1
Very good
11,551 reviews
8.1
Very good
11,551 reviews

Food

7.5

Crew

8.6

Comfort

7.9

Overall

8.1

Entertainment

8.1

Boarding

8.2

Reviews

1 / 10

It was a good experience other than a short delay.

7.4
Good
11,602 reviews
8.1
Very good
11,551 reviews

Food

7.5

Crew

8.6

Comfort

7.9

Overall

8.1

Entertainment

8.1

Boarding

8.2

Reviews

1 / 10

It was a good experience other than a short delay.

7.3
Good
15,312 reviews
8.1
Very good
11,551 reviews

Food

7.5

Crew

8.6

Comfort

7.9

Overall

8.1

Entertainment

8.1

Boarding

8.2

Reviews

1 / 10

It was a good experience other than a short delay.

7.3
Good
704 reviews
8.1
Very good
11,551 reviews

Food

7.5

Crew

8.6

Comfort

7.9

Overall

8.1

Entertainment

8.1

Boarding

8.2

Reviews

1 / 10

It was a good experience other than a short delay.

6.5
Okay
8,875 reviews
8.1
Very good
11,551 reviews

Food

7.5

Crew

8.6

Comfort

7.9

Overall

8.1

Entertainment

8.1

Boarding

8.2

Reviews

1 / 10

It was a good experience other than a short delay.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Mesa. 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 Mesa?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to Mesa from St. Louis. Booking flights from Lambert-St Louis (STL) to Mesa should be relatively easy as there are 10 daily outbound flights to Mesa from 5 different airlines.

  • Can I find flights from St. Louis to Mesa for under $100 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Mesa for under $100. The cheapest flight booked recently is on Frontier for just $78, but on average you can expect to pay $115.

  • Are there nonstop flights from St. Louis to Mesa for under $100 on Cheapflights?

    Cheapflights has at least 20 direct flights from St. Louis to Mesa under $100. A good price for a nonstop flight from St. Louis to Mesa is less than $213.

  • Are there last-minute flights available from St. Louis to Mesa for under $200?

    There are currently 20+ open flights from St. Louis to Mesa within the next 7 days for less than $200.

  • What days are nonstop flights available from St. Louis to Mesa?

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

  • How many flights depart from St. Louis to Mesa on average per day?

    Travelers can expect 1 flight from St. Louis to Mesa on average per day.
    Evening (6pm - Midnight) - 100% of flight departures

  • How long is the flight from St. Louis to Mesa?

    There are many flights that can get you from St. Louis to Mesa in 3h 28m. Fly via Frontier to get the fastest option. The distance from St. Louis to Mesa is about 1266 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines to fly from St. Louis to Mesa one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $39. Users have also found prices from $81 and $116 on Spirit Airlines and American Airlines, respectively.

  • What are the most popular airlines that fly from St. Louis to Mesa?

  • What are the most reliable airlines from St. Louis to Mesa?

    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 Mesa on time: Alaska Airlines (94%), American Airlines (91%), SkyWest Airlines (85%).

  • What are the cheapest flights from St. Louis to Mesa?

    The cheapest flight price from St. Louis to Mesa is $90. On average you can expect to pay $930. The most popular route, (Lambert-St Louis - Phoenix Sky Harbor Intl), can usually be booked for $102.

  • What does STL to PHX mean?

    STL and PHX are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to PHX refers to a flight route from Lambert-St Louis Airport to Phoenix Sky Harbor Intl Airport. Phoenix-Mesa Gateway Airport (AZA), Prescott Airport (PRC) are other airports near this flight route and their unique identifiers/IATA codes.

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.

Top 5 airlines flying from St. Louis to Mesa

Discover the top 5 airlines that operate flights from St. Louis to Mesa. 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 3,145,932 searches. Data last updated March 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$203FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$118Average$174FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$278Average$568FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$294Average$418FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$296Average$406FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Search flights from St. Louis to Mesa by cabin class

Find flights from St. Louis to Mesa, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from St. Louis to Mesa

Find hourly flight availability from St. Louis to Mesa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 19, 2024.
12%of flight departuresEarly morningMidnight to 6 am
34%of flight departuresMorning6 am to noon
36%of flight departuresAfternoonNoon to 6 pm
18%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from St. Louis to Mesa

Explore weekly flight availability from St. Louis to Mesa. 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 March 19, 2024.
Sunday13daily flights
Monday11daily flights
Tuesday11daily flights
Wednesday11daily flights
Thursday11daily flights
Friday10daily flights
Saturday9daily flights

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