Compare live prices for PHX to STL. Use the search panel
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PHX → STLApprox. 2026.82 km11 May 2026Live inventory
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Showing 25
of 121
live flights
Frontier Airlines
F9-4113
22:27
05/11/2026
PHX
Phoenix Sky Harbor International Airport
19h 39m
1 Stop
⏱ LAS · 13h 1mLAS Airport
18:06
05/12/2026
+1
STL
St Louis Lambert International Airport
₹15,867
per person
✕ Non-refundable
American Airlines
AA-4968
19:05
05/11/2026
PHX
Phoenix Sky Harbor International Airport
5h 7m
Non-stop
00:12
05/12/2026
+1
STL
St Louis Lambert International Airport
₹17,957
per person
✓ Refundable11 fare options
Southwest Airlines
WN-3183
05:15
05/11/2026
PHX
Phoenix Sky Harbor International Airport
4h 50m
Non-stop
10:05
05/11/2026
STL
St Louis Lambert International Airport
₹18,311
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-1845
19:40
05/11/2026
PHX
Phoenix Sky Harbor International Airport
4h 50m
Non-stop
00:30
05/12/2026
+1
STL
St Louis Lambert International Airport
₹18,311
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-2906
16:10
05/11/2026
PHX
Phoenix Sky Harbor International Airport
4h 55m
Non-stop
21:05
05/11/2026
STL
St Louis Lambert International Airport
₹18,311
per person
✕ Non-refundable🔥 Last 4 seats6 fare options
Southwest Airlines
WN-3904
08:10
05/11/2026
PHX
Phoenix Sky Harbor International Airport
5h 5m
Non-stop
13:15
05/11/2026
STL
St Louis Lambert International Airport
₹18,848
per person
✕ Non-refundable🔥 Last 1 seats5 fare options
Delta Air Lines
DL-1738
17:16
05/11/2026
PHX
Phoenix Sky Harbor International Airport
7h 14m
1 Stop
⏱ SLC · 0h 44mSLC Airport
00:30
05/12/2026
+1
STL
St Louis Lambert International Airport
₹18,865
per person
✕ Non-refundable
Delta Air Lines
DL-1535
06:05
05/11/2026
PHX
Phoenix Sky Harbor International Airport
7h 27m
1 Stop
⏱ SLC · 0h 57mSLC Airport
13:32
05/11/2026
STL
St Louis Lambert International Airport
₹18,865
per person
✕ Non-refundable
Delta Air Lines
DL-1777
09:33
05/11/2026
PHX
Phoenix Sky Harbor International Airport
9h 30m
1 Stop
⏱ SLC · 3h 0mSLC Airport
19:03
05/11/2026
STL
St Louis Lambert International Airport
₹18,865
per person
✕ Non-refundable
American Airlines
AA-2786
15:35
05/11/2026
PHX
Phoenix Sky Harbor International Airport
8h 21m
1 Stop
⏱ ORD · 1h 25mORD Airport
23:56
05/11/2026
STL
St Louis Lambert International Airport
₹18,872
per person
✓ Refundable6 fare options
American Airlines
AA-1748
23:59
05/11/2026
PHX
Phoenix Sky Harbor International Airport
8h 26m
1 Stop
⏱ ORD · 1h 23mORD Airport
08:25
05/12/2026
+1
STL
St Louis Lambert International Airport
₹18,872
per person
✓ Refundable6 fare options
American Airlines
AA-3274
14:25
05/11/2026
PHX
Phoenix Sky Harbor International Airport
7h 54m
1 Stop
⏱ ORD · 0h 46mORD Airport
22:19
05/11/2026
STL
St Louis Lambert International Airport
₹18,872
per person
✓ Refundable5 fare options
American Airlines
AA-3274
14:25
05/11/2026
PHX
Phoenix Sky Harbor International Airport
9h 31m
1 Stop
⏱ ORD · 2h 31mORD Airport
23:56
05/11/2026
STL
St Louis Lambert International Airport
₹18,872
per person
✓ Refundable5 fare options
Southwest Airlines
WN-3780
09:20
05/11/2026
PHX
Phoenix Sky Harbor International Airport
6h 30m
1 Stop
⏱ DEN · 0h 45mDEN Airport
15:50
05/11/2026
STL
St Louis Lambert International Airport
₹19,409
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-3786
15:25
05/11/2026
PHX
Phoenix Sky Harbor International Airport
6h 40m
1 Stop
⏱ DEN · 0h 50mDEN Airport
22:05
05/11/2026
STL
St Louis Lambert International Airport
₹19,409
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-1091
15:35
05/11/2026
PHX
Phoenix Sky Harbor International Airport
7h 5m
1 Stop
⏱ DAL · 1h 5mDAL Airport
22:40
05/11/2026
STL
St Louis Lambert International Airport
₹19,409
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-2850
11:00
05/11/2026
PHX
Phoenix Sky Harbor International Airport
7h 55m
1 Stop
⏱ SAN · 1h 10mSAN Airport
18:55
05/11/2026
STL
St Louis Lambert International Airport
₹19,409
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-3166
16:40
05/11/2026
PHX
Phoenix Sky Harbor International Airport
7h 10m
1 Stop
⏱ DEN · 1h 15mDEN Airport
23:50
05/11/2026
STL
St Louis Lambert International Airport
₹19,409
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-3779
08:05
05/11/2026
PHX
Phoenix Sky Harbor International Airport
7h 45m
1 Stop
⏱ DEN · 2h 0mDEN Airport
15:50
05/11/2026
STL
St Louis Lambert International Airport
₹19,409
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-2864
14:05
05/11/2026
PHX
Phoenix Sky Harbor International Airport
8h 0m
1 Stop
⏱ DEN · 2h 10mDEN Airport
22:05
05/11/2026
STL
St Louis Lambert International Airport
₹19,409
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-3786
15:25
05/11/2026
PHX
Phoenix Sky Harbor International Airport
8h 25m
1 Stop
⏱ DEN · 2h 30mDEN Airport
23:50
05/11/2026
STL
St Louis Lambert International Airport
₹19,409
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-2550
07:00
05/11/2026
PHX
Phoenix Sky Harbor International Airport
8h 50m
1 Stop
⏱ DEN · 3h 5mDEN Airport
15:50
05/11/2026
STL
St Louis Lambert International Airport
₹19,409
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-1718
05:00
05/11/2026
PHX
Phoenix Sky Harbor International Airport
7h 50m
1 Stop
⏱ DAL · 1h 45mDAL Airport
12:50
05/11/2026
STL
St Louis Lambert International Airport
₹19,409
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-4007
14:40
05/11/2026
PHX
Phoenix Sky Harbor International Airport
8h 0m
1 Stop
⏱ DAL · 2h 0mDAL Airport
22:40
05/11/2026
STL
St Louis Lambert International Airport
₹19,409
per person
✕ Non-refundable5 fare options
Southwest Airlines
WN-1091
15:35
05/11/2026
PHX
Phoenix Sky Harbor International Airport
8h 40m
1 Stop
⏱ DAL · 2h 40mDAL Airport
00:15
05/12/2026
+1
STL
St Louis Lambert International Airport
₹19,409
per person
✕ Non-refundable5 fare options
😕 No flights match your filters.
Phoenix (PHX)
📍 Phoenix Sky Harbor International Airport
🌍 United States
🕐 GMT -7
📐 Latitude: 33.43429946899414
📐 Longitude: -112.01200103759766
St. Louis (STL)
📍 St Louis Lambert International Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 38.748697
📐 Longitude: -90.370003
✈ Distance: Phoenix,USA to St. Louis,USA — 2026.82 km
📅 Results on this page are loaded for 11 May 2026. Click View all flights for the complete live search.
Phoenix to St. Louis — what to expect when booking
The PHX–STL route is served by multiple carriers throughout the year.
Fares on this route can move quickly — a price available now may not be there 30 minutes later.
If your dates are flexible, try shifting your departure by a day or two using the date strip above.
Mid-week departures often show lower base fares compared to weekend starts on many routes.
The distance between Phoenix,USA and St. Louis,USA is approximately
2026.82 km.
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❓ Frequently asked questions — Phoenix to St. Louis flights
Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.
The straight-line distance between Phoenix,USA (PHX) and St. Louis,USA (STL) is approximately 2026.82 km. Actual flying distance may vary slightly depending on routing.
Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.
Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.