St Louis to Portsmouth (STL–PSM) — Airlines, Schedules & Connections

STL Airport Page →
1,061 mi airlines charter/private ~1/wk
On-time Some delays Frequent delays
Connecting Flight Schedule 2 1-stop flights Verified 19m ago
Charter / private route. No scheduled airline service — operated by charter & private aviation.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 2 hubs
RDU Raleigh/Durham 6h 17m WN → MX Raleigh/Durham (RDU) to Portsmouth flights
MCO Orlando 7h 6m F9WN → MX Orlando (MCO) to Portsmouth flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
St Louis to Portsmouth
Flown by charter / private operators — no scheduled airline service.
1,061 mi 2h 27m nonstop +1h ahead

STL–PSM has no scheduled airline service; it is flown by charter / private operators. 1-stop connecting options are also available.

Also explore STL Routes PSM Routes STL Live Flights PSM Live Flights STL Delays
All flights from Portsmouth (PSM) Portsmouth to St Louis flights
Connections

Connection Landscape

1-stop and 2-stop options for STL to PSM.
1-STOP
One-Stop Connections
2
Hubs
~6h
Fastest
~7h
Longest
RDU ~6h 17m MCO ~7h 6m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
61
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
STL → PSM
64%
Moderate delays possible. Allow buffer time.
Departing
64%
Return
PSM → STL
84%
Generally reliable. Most flights run on time.
Arriving
84%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. STL delays →
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
+1h
Portsmouth is 1 hour ahead of St Louis.
STL: CDT · PSM: EDT

When it's 6:00 PM in St Louis, it's 7:00 PM in Portsmouth.
Distance & Flight Time
1,061 mi / 1,707 km
Nonstop flight time is approximately 2h 27m gate to gate.
Facts

STL–PSM Quick Facts

Key statistics for the St Louis to Portsmouth route.
Route details
Distance1,061 mi / 1,707 km
Flight time2h 27m
Time difference+1 hour
Airlines (nonstop)Charter / private
Weekly flights~1 out / ~1 return
1-stop connectionsAvailable
Origin: STL
Full nameSt. Louis Lambert International Airport
IATA / ICAOSTL / KSTL
TimezoneAmerica/Chicago
Passengers/yr15.6M
Elevation618 ft / 188 m
Destination: PSM
Full namePortsmouth International Airport at Pease
IATA / ICAOPSM / KPSM
TimezoneAmerica/New_York
Passengers/yr0.2M
Elevation100 ft / 30 m
FAQ

Frequently Asked Questions

Common questions about STL to PSM flights.
Nonstop flights from St. Louis Lambert International Airport to Portsmouth International Airport at Pease take about 2h 27m gate to gate. The route covers 1,061 miles.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Raleigh-Durham and Orlando.
Portsmouth is 1 hour ahead of St Louis.
Yes, return flights from PSM to STL are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from STL to PSM

St. Louis Lambert International Airport (STL) and Portsmouth International Airport at Pease (PSM) are connected through multiple connecting hub airports.

STL to PSM Flight Duration and Schedule

Nonstop flight time from STL to PSM is about 2 hours 27 minutes gate to gate. The route covers a distance of 1,061 miles (1,707 km).

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Raleigh-Durham and Orlando. Two-stop connections are also available via intermediate hubs.