Round-trip from | $288 (Booking.com) |
---|---|
One-way from | $106 (Frontier) |
Popular in | December |
Cheapest in | January |
Average price | $408 |
Good round-trip deal | $499 or less |
Fly from
Fly to
Route
Depart
Return
Price
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Tue 7/8
6:35 am-9:11 am
1 stop24h 36m
Lambert-St Louis
Sat 7/12
8:40 am-5:28 pm
1 stop10h 48m
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Mon 9/1
2:30 pm-11:59 pm
1 stop7h 29m
Lambert-St Louis
Mon 9/8
6:00 am-10:57 am
1 stop6h 57m
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Tue 9/2
7:00 am-5:34 pm
1 stop8h 34m
Lambert-St Louis
Sat 9/6
6:00 am-12:24 pm
1 stop8h 24m
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Mon 7/14
12:40 am-8:34 am
1 stop5h 54m
Lambert-St Louis
Thu 7/24
7:15 pm-11:35 pm
1 stop6h 20m
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Tue 8/5
6:10 am-5:45 pm
2 stops9h 35m
Lambert-St Louis
Tue 8/12
6:15 am-11:45 am
1 stop7h 30m
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Tue 7/8
7:01 pm-9:11 am
1 stop12h 10m
Lambert-St Louis
Fri 7/18
7:29 pm-12:15 am
1 stop6h 46m
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Sat 7/12
3:10 pm-9:52 am
2 stops16h 42m
Lambert-St Louis
Sat 7/19
3:34 pm-9:18 am
2 stops19h 44m
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Mon 7/14
7:35 pm-4:54 am
1 stop7h 19m
Lambert-St Louis
Fri 7/18
5:41 pm-12:35 am
1 stop8h 54m
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Thu 6/26
12:09 am-8:05 am
1 stop5h 56m
Lambert-St Louis
Sat 7/5
5:30 am-10:34 am
1 stop7h 04m
PortlandSt. Louis
PDX - STL
PDXSTL
Portland
Thu 6/26
11:59 pm-11:36 am
1 stop9h 37m
Lambert-St Louis
Sun 7/6
6:36 am-6:10 pm
1 stop13h 34m
The best time to book flights from Portland to St. Louis is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, August is the cheapest month in which you can book a flight from Portland to St. Louis (average of $311). Flying from Portland 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.
Unlike at noon, when flights are generally more expensive, you can save up to 58% on flights from Portland to St. Louis by exploring options for tickets in the evening.
Travelers seeking maximum savings on their Portland to St. Louis flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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).
Overall
Boarding
Food
Comfort
Entertainment
Crew
Reviews
James,Apr 2025
LAX - SFO
Overall
Boarding
Food
Comfort
Entertainment
Crew
Reviews
James,Apr 2025
LAX - SFO
Overall
Boarding
Food
Comfort
Entertainment
Crew
Reviews
James,Apr 2025
LAX - SFO
Overall
Boarding
Food
Comfort
Entertainment
Crew
Reviews
James,Apr 2025
LAX - SFO
Overall
Boarding
Food
Comfort
Entertainment
Crew
Reviews
James,Apr 2025
LAX - SFO
Overall
Boarding
Food
Comfort
Entertainment
Crew
Reviews
James,Apr 2025
LAX - SFO
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$118 | Average$221 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$200 | Average$390 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$212 | Average$368 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$226 | Average$434 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$244 | Average$437 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$252 | Average$457 | FlexibilityNo cancel fee | On-time63% |