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

PSM Airport Page →
airlines 0/wk
On-time Some delays Frequent delays
Flight Schedule 0 flights
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  Flight Airline AC Dep Arr Dur OTP Sched  

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP
✧ 2-STOP Loading...
Portsmouth to St Louis
Connecting service available through multiple hubs.
16 1-stop hubs

While no nonstop service exists between PSM and STL, connecting options are available through 16 hubs.

Also explore PSM Routes STL Routes PSM Live Flights STL Live Flights STL Delays
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for PSM to STL.
1-STOP
One-Stop Connections
16
Hubs
~3h
Fastest
~21h
Longest
TEB ~3h 59m BLM ~4h 6m BOS ~4h 55m CMH ~5h 4m PHL ~5h 25m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
179
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
PSM → STL
100%
Generally reliable. Most flights run on time.
Arriving
100%
Return
STL → PSM
100%
Generally reliable. Most flights run on time.
Departing
100%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. STL delays →
Alternatives

Other ways to reach St Louis from Portsmouth

Nearby airports with service to St. Louis Lambert International Airport.
Metric PSM→STL BOS→STL HYA→STL
Distance from PSM – 50 mi 101 mi
Nonstop airlines 0 8 1
Weekly flights 0 58 –
Boston (BOS) to St Louis flights · Hyannis (HYA) to St Louis flights
Airports within 200 miles of PSM with service to St. Louis Lambert International Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
St Louis is 0 hours the same as Portsmouth.
PSM: EDT · STL: EDT

When it's 6:00 PM in Portsmouth, it's 6:00 PM in St Louis.
Facts

PSM–STL Quick Facts

Key statistics for the Portsmouth to St Louis route.
Route details
Time difference0 hours
Airlines (nonstop)0
1-stop connections16 hubs
Origin: PSM
Full namePortsmouth International Airport at Pease
IATA / ICAOPSM / KPSM
TimezoneAmerica/New_York
Passengers/yr0.2M
Elevation100 ft / 30 m
Destination: STL
Full nameSt. Louis Lambert International Airport
IATA / ICAOSTL / KSTL
TimezoneAmerica/Indiana/Vincennes
Passengers/yr15.6M
Elevation618 ft / 188 m
FAQ

Frequently Asked Questions

Common questions about PSM to STL flights.
Yes, 1-stop connections are available through TEB, BLM, BOS, CMH, PHL, BWI, PIE, CHS, JAX, PBI, DFW, SLC, SFO, MCO, RSW and RDU. These options provide additional schedule flexibility.
Nearby alternatives include BOS and HYA. See the Alternatives section for a full comparison.
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.

Connecting Options and Alternatives

16 one-stop connections are available, with the fastest taking approximately 3 hours via TEB. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Boston (BOS) and Hyannis (HYA).