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

BWI Airport Page →
2,278 mi airlines 7/wk
On-time Some delays Frequent delays
Flight Schedule 2 flights Verified 3h ago
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  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
✓
→
WN2416
WN Southwest
B38M
12:45 PM
EDT
3:15 PM
PDT
5h 30m
—
M T W T F S S
Prices
✓
←
WN3648
WN Southwest
7M8
9:55 PM
PDT T4
5:40 AM+1
EDT
4h 45m
—
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Baltimore to Ontario
1 carrier, 7 flights/week nonstop.
1 Airlines 7 Flights/wk 2,278 mi 5h 30m nonstop -3h behind 44 1-stop hubs

BWI–ONT is served by 1 airline with nonstop service. Southwest Airlines leads the route. The flight covers 2,278 miles in approximately 5h 30m. Beyond nonstop, 44 hubs offer 1-stop connections.

Also explore BWI Routes ONT Routes BWI Live Flights ONT Live Flights BWI Delays ONT Delays
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 7 B38M 5h30 100% – –
Aircraft on this route
B38M Boeing 737 MAX 8 – WN
Alliance coverage
Unaffiliated: WN (7 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
1
flight
Sun
1
flight
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
1
Nonstop flights
7
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
44
Hubs
~6h
Fastest
~23h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
1,405
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.
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 7 –
Flight time 5h 30m 5h 24m
Departure OTP 100% –
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 30m.
Facts

BWI–ONT Quick Facts

Key statistics for the Baltimore to Ontario route.
Route details
Distance2,278 mi / 3,666 km
Flight time5h 30m
Time difference-3 hours
Airlines (nonstop)1
Weekly flights7 out / 7 return
1-stop connections44 hubs
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 approximately 5h 30m. The route covers 2,278 miles.
1 airline operates nonstop service: Southwest Airlines.
There are approximately 7 nonstop flights per week from BWI to ONT. The return direction has about 7 weekly flights.
Yes, 1-stop connections are available through GSO, LIT, SCF, COS, SAF, VNY, SDF, IND, BKL, MEM, PHL, EWR, MSP, STL, JAC, MLB, MCO, JFK, PBI, BOS, FLL, SJD, MIA, CVG, ANC, CLT, IAH, ATL, ORD, DEN, PHX, SLC, SFO, DFW, SEA, SJC, BNA, PDX, DAL, LAS, AUS, MDW, SMF and HOU. These options provide additional schedule flexibility.
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 7 weekly departures, this is a regularly served route.

BWI to ONT Flight Duration and Schedule

Nonstop flight time from BWI to ONT ranges from 5 hours 30 minutes. The route covers a distance of 2,278 miles (3,666 km). There are approximately 7 weekly flights outbound and 7 return, totaling 14 flights per week in both directions.

Connecting Options and Alternatives

44 one-stop connections are available, with the fastest taking approximately 6 hours via GSO. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Philadelphia (PHL).