Baltimore to Ontario (BWI–ONT) — Airlines, Schedules & Connections

BWI Airport Page →
2,278 mi airlines charter/private 8/wk
On-time Some delays Frequent delays
Flight Schedule 5 flights Verified 22m 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
✓
→
WN991
WN Southwest
73H
9:50 AM
EDT
12:05 PM
PDT
5h 15m
46%
M T W T F S S
Prices
✓
→
WN719
WN Southwest
73H
10:00 AM
EDT
12:15 PM
PDT
5h 15m
46%
M T W T F S S
Prices
✓
→
WN2165
WN Southwest
B38M
1:40 PM
EDT
3:55 PM
PDT
5h 15m
46%
M T W T F S S
Prices
✓
→
WN200
WN Southwest
7M8
8:10 PM
EDT
10:25 PM
PDT
5h 15m
46%
M T W T F S S
Prices
✓
←
WN3143
WN Southwest
7S7
9:40 PM
PDT T4
5:30 AM+1
EDT
4h 50m
—
M T W T F S S
Prices

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
MDW Chicago 6h 50m WN → WN Chicago (MDW) to Ontario flights
DEN Denver 6h 55m UAWN → ACF9UA Denver (DEN) to Ontario flights
LAS Las Vegas 6h 59m WN → F9WNY4 Las Vegas (LAS) to Ontario flights
DAL Dallas 7h 8m LXJWN → WN Dallas (DAL) to Ontario flights
BNA Nashville 7h 10m SYWN → WN Nashville (BNA) to Ontario flights
ATL Atlanta 7h 20m 8CAFAM → AFAMDL Atlanta (ATL) to Ontario flights
SLC Salt Lake City 7h 20m DLKEWN → AFAMDL Salt Lake City (SLC) to Ontario flights
DFW Dallas-Fort Worth 7h 22m AACXEJA → AABAF9 Dallas-Fort Worth (DFW) to Ontario flights
PHX Phoenix 7h 24m WN → AAEJAPD Phoenix (PHX) to Ontario flights
HOU Houston 7h 30m WN → WN Houston (HOU) to Ontario flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Baltimore to Ontario
1 carrier, 8 flights/week nonstop.
1 Airlines 2,278 mi 5h 15m nonstop -3h behind

BWI–ONT is served by 1 airline with nonstop service. Southwest Airlines leads the route. The flight covers 2,278 miles in approximately 5h 15m. Beyond nonstop, 1-stop connecting options are also available.

Also explore BWI Routes ONT Routes BWI Live Flights ONT Live Flights BWI Delays ONT Delays
All flights from Ontario (ONT) Ontario to Baltimore flights
Carriers on this route

Airline Landscape

All carriers operating nonstop BWI–ONT service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
WN Southwest Airlines 8 73H, 7M8, B38M 5h15 83% – –
Aircraft on this route
73H Boeing 737-800 (Winglets) – WN
7M8 Boeing 737 MAX 8 – WN
B38M Boeing 737 MAX 8 – WN
Alliance coverage
Unaffiliated: WN (8 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, BWI to ONT direction.
Mon
1
flight
Tue
1
flight
Wed
1
flight
Thu
1
flight
Fri
1
flight
Sat
2
flights
Sun
1
flight
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
4
Nonstop flights
8
Outbound / wk
7
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for BWI to ONT.
1-STOP
One-Stop Connections
26
Hubs
~6h
Fastest
~12h
Longest
MDW ~6h 50m DEN ~6h 55m LAS ~6h 59m DAL ~7h 8m BNA ~7h 10m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
1,268
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
BWI → ONT
83%
Generally reliable. Most flights run on time.
Departing
83%
Arriving
79%
Return
ONT → BWI
91%
Generally reliable. Most flights run on time.
Departing
91%
Arriving
60%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. BWI delays → ONT delays →
Alternatives

Other ways to reach Ontario from Baltimore

Nearby airports with service to Ontario International Airport.
Metric BWI→ONT PHL→ONT
Distance from BWI – 90 mi
Nonstop airlines 1 1
Weekly flights 8 –
Flight time 5h 15m 5h 24m
Departure OTP 83% –
Philadelphia (PHL) to Ontario flights
Airports within 200 miles of BWI with service to Ontario International Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
-3h
Ontario is 3 hours behind Baltimore.
BWI: EDT · ONT: PDT

When it's 6:00 PM in Baltimore, it's 3:00 PM in Ontario.
Distance & Flight Time
2,278 mi / 3,666 km
Nonstop flight time is approximately 5h 15m gate to gate.
Facts

BWI–ONT Quick Facts

Key statistics for the Baltimore to Ontario route.
Route details
Distance2,278 mi / 3,666 km
Flight time5h 15m
Time difference-3 hours
Airlines (nonstop)1
Weekly flights8 out / 7 return
1-stop connectionsAvailable
Origin: BWI
Full nameBaltimore/Washington International Thurgood Marshall Airport
IATA / ICAOBWI / KBWI
TimezoneAmerica/New_York
Passengers/yr26.4M
Elevation146 ft / 45 m
Destination: ONT
Full nameOntario International Airport
IATA / ICAOONT / KONT
TimezoneAmerica/Los_Angeles
Passengers/yr7.0M
Elevation944 ft / 288 m
FAQ

Frequently Asked Questions

Common questions about BWI to ONT flights.
Nonstop flights from Baltimore/Washington International Thurgood Marshall Airport to Ontario International Airport take about 5h 15m gate to gate. The route covers 2,278 miles.
1 airline operates flights from BWI to ONT: Southwest Airlines.
This route has daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Chicago Midway, Denver and Harry Reid.
Ontario is 3 hours behind Baltimore.
Yes, return flights from ONT to BWI are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include PHL. 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.

Flights from BWI to ONT

Baltimore/Washington International Thurgood Marshall Airport (BWI) and Ontario International Airport (ONT) are connected by nonstop service from Southwest Airlines. With 8 weekly departures, this is a regularly served route.

BWI to ONT Flight Duration and Schedule

Nonstop flight time from BWI to ONT is about 5 hours 15 minutes gate to gate. The route covers a distance of 2,278 miles (3,666 km). There are approximately 8 weekly flights outbound and 7 return, totaling 15 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Chicago Midway, Denver and Harry Reid. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Philadelphia (PHL).