Boston to Cahokia/St Louis (BOS–CPS) — Airlines, Schedules & Connections

BOS Airport Page →
1,038 mi airlines charter/private 1/wk
On-time Some delays Frequent delays
Connecting Flight Schedule 14 1-stop flights Verified 3w ago
Also flown by charter / private operators.
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 10 hubs
MSP Minneapolis 5h 8m AFAMDL → DL Minneapolis (MSP) to Cahokia/St Louis flights
PIT Pittsburgh ~3h 53m B6DLEI → Pittsburgh (PIT) to Cahokia/St Louis flights
LGA New York ~4h 13m AAAFAM → New York (LGA) to Cahokia/St Louis flights
JFK New York ~4h 58m AAAFAM → New York (JFK) to Cahokia/St Louis flights
IAD Dulles ~5h 20m AVAZCM → SY Dulles (IAD) to Cahokia/St Louis flights
FLL Fort Lauderdale ~6h 10m ADAFB6 → Fort Lauderdale (FLL) to Cahokia/St Louis flights
AUS Austin ~7h 52m AFAMB6 → Austin (AUS) to Cahokia/St Louis flights
IAH Houston ~7h 55m AZB6EK → UA Houston (IAH) to Cahokia/St Louis flights
DEN Denver ~8h 35m AZB6DL → SY Denver (DEN) to Cahokia/St Louis flights
PHX Phoenix ~9h 52m AADLLY → Phoenix (PHX) to Cahokia/St Louis flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Boston to Cahokia/St Louis
Connecting service available through multiple hubs.
1 Airlines 1,038 mi 2h 54m nonstop -1h behind

BOS–CPS had nonstop service from Delta Air Lines, last on the schedule in May 2026. There's no nonstop on it right now, so today you'd fly it with one stop. The connecting options below are sorted by layover. Nonstop, it's about 1,038 miles in 2h 54m.

Also explore BOS Routes CPS Routes BOS Live Flights CPS Live Flights BOS Delays
All flights from Cahokia/St Louis (CPS) Cahokia/St Louis to Boston flights
Carriers on this route

Airline Landscape

Carriers that operated nonstop BOS–CPS service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
DL Delta Air Lines 0 – – 54% SkyTeam –
Alliance coverage
SkyTeam: DL (0 flights/wk, 0%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Connections

Connection Landscape

1-stop and 2-stop options for BOS to CPS.
1-STOP
One-Stop Connections
14
Hubs
~3h
Fastest
~30h
Longest
PIT ~3h 53m LGA ~4h 13m JFK ~4h 58m MSP ~5h 8m IAD ~5h 20m
Verified with published schedule alignment and minimum connection time.
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
BOS → CPS
54%
Frequent delays expected. Consider flexible booking.
Departing
54%
Return
CPS → BOS
72%
Moderate delays possible. Allow buffer time.
Arriving
72%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. BOS delays →
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
-1h
Cahokia/St Louis is 1 hour behind Boston.
BOS: EDT · CPS: CDT

When it's 6:00 PM in Boston, it's 5:00 PM in Cahokia/St Louis.
Distance & Flight Time
1,038 mi / 1,670 km
Nonstop flight time is approximately 2h 54m gate to gate.
Getting to BOS

MBTA Silver Line SL1 bus runs from South Station (Red Line, Amtrak) through the Ted Williams Tunnel to all Logan terminals; free from the airport, $2.40 inbound. Journey from South Station takes 15–20 minutes depending on traffic. The Blue Line Aquarium station connects to a free water taxi ($12) across the harbor to Logan; scenic but weather-dependent.Taxis from downtown Boston cost $30–45 with the Ted Williams Tunnel toll included. Ride-hails are comparable. The Sumner and Ted Williams tunnels both serve the airport; check traffic before departing, as both frequently back up. Logan is only 3 miles from downtown but tunnel congestion often extends that to 30+ minutes.

Facts

BOS–CPS Quick Facts

Key statistics for the Boston to Cahokia/St Louis route.
Route details
Distance1,038 mi / 1,670 km
Flight time2h 54m
Time difference-1 hour
Airlines (nonstop)1
1-stop connectionsAvailable
Origin: BOS
Full nameBoston Logan International Airport
IATA / ICAOBOS / KBOS
TimezoneAmerica/New_York
Passengers/yr42.2M
Elevation20 ft / 6 m
Destination: CPS
Full nameSt Louis Downtown Airport
IATA / ICAOCPS / KCPS
TimezoneAmerica/Chicago
Elevation413 ft / 126 m
FAQ

Frequently Asked Questions

Common questions about BOS to CPS flights.
Nonstop flights from Boston Logan International Airport to St Louis Downtown Airport take about 2h 54m gate to gate. The route covers 1,038 miles.
1 airline operated the nonstop from BOS to CPS: Delta Air Lines. The last scheduled nonstop was in May 2026. There's no nonstop right now, so today you'd fly it with one stop. See the connection options above, ranked by layover.
Not right now. The last scheduled nonstop was in May 2026. You can still fly it with one stop, and the connecting options above are sorted by layover. Nonstop, the hop took about 2h 54m.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Minneapolis–Saint Paul.
Cahokia/St Louis is 1 hour behind Boston.
Yes, return flights from CPS to BOS 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 BOS to CPS

Boston Logan International Airport (BOS) and St Louis Downtown Airport (CPS) had nonstop service from Delta Air Lines, last on the schedule in May 2026. The nonstop is dormant right now, so the way to fly it today is one connection, and the options above are sorted by layover.

BOS to CPS Flight Duration and Schedule

Nonstop flight time from BOS to CPS is about 2 hours 54 minutes gate to gate. The route covers a distance of 1,038 miles (1,670 km).

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Minneapolis–Saint Paul.