Round-trip from | $317 (Delta) |
---|---|
One-way from | $141 (FlightHub) |
Popular in | December |
Cheapest in | February |
Average price | $396 |
Fly from
Fly to
Route
Depart
Return
Price
PortlandSt. Louis
PWM - STL
PWMSTL
Portland
Wed 7/2
6:03 am-11:31 am
1 stop6h 28m
Lambert-St Louis
Sat 7/5
1:30 pm-9:37 pm
1 stop7h 07m
PortlandSt. Louis
PWM - STL
PWMSTL
Portland
Fri 8/8
5:50 am-11:30 am
1 stop6h 40m
Lambert-St Louis
Sat 8/23
12:30 pm-10:00 pm
1 stop8h 30m
PortlandSt. Louis
PWM - STL
PWMSTL
Portland
Thu 7/24
6:15 am-12:43 pm
1 stop7h 28m
Lambert-St Louis
Mon 7/28
4:28 pm-10:45 pm
1 stop5h 17m
PortlandSt. Louis
PWM - STL
PWMSTL
Portland
Wed 6/25
8:07 pm-5:04 pm
2 stops21h 57m
Lambert-St Louis
Sun 6/29
6:12 am-11:23 am
1 stop28h 11m
PortlandSt. Louis
PWM - STL
PWMSTL
Portland
Thu 7/10
3:50 pm-11:35 pm
1 stop8h 45m
Lambert-St Louis
Wed 7/16
8:00 am-2:24 pm
1 stop5h 24m
PortlandSt. Louis
PWM - STL
PWMSTL
Portland
Sat 7/19
6:58 pm-11:47 pm
1 stop29h 49m
PortlandSt. Louis
PWM - STL
PWMSTL
Portland
Tue 8/12
6:00 am-12:35 pm
1 stop7h 35m
PortlandSt. Louis
PWM - STL
PWMSTL
Portland
Tue 8/12
6:00 am-4:06 pm
2 stops11h 06m
PortlandSt. Louis
PWM - STL
PWMSTL
Portland
Sun 7/13
12:46 pm-7:31 pm
1 stop7h 45m
PortlandSt. Louis
PWM - STL
PWMSTL
Portland
Mon 8/4
5:40 pm-11:20 pm
1 stop6h 40m
Currently, August is the cheapest month in which you can book a flight from Portland, Maine to St. Louis (average of $311). Flying from Portland, Maine to St. Louis in March is currently the most expensive (average of $356). 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.
When flying from Portland, Maine to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 28% versus a flight at noon.
In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.
If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
John,May 2025
PVD - BNA
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
John,May 2025
PVD - BNA
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
John,May 2025
PVD - BNA
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
John,May 2025
PVD - BNA
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
John,May 2025
PVD - BNA
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
John,May 2025
PVD - BNA
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$308 | Average$420 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$333 | Average$428 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$341 | Average$456 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$351 | Average$456 | FlexibilityNo cancel fee | On-time63% |