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Cheap flights from Ontario to Baltimore from US$197
There are no direct flights from Ontario to Baltimore. The fastest way is one stop via Denver or Las Vegas, about 5h 51m door to door (224 connections a week on current schedules), with fares from US$197.
No direct flights · 6 connection options From 8h 25m Cheapest in January Prices checked 13 days ago
Ontario to Baltimore at a glance
Cheapest one-wayUS$197Frontier Airlines · 3 stops · Mon 18 JanCheapest returnUS$267Fri 6 Nov – Mon 9 NovFastest journey8h 25mFrontier Airlines · 3 stops
Nonstop flightsNoneConnect via Denver or Las Vegas
Best ways to fly from Ontario to Baltimore
Ranked by how easy the connection is: one airline or alliance first (bags and connection protected), then the quickest self-transfer options.
1Search
ONT Denver (DEN) BWI
Leg 1: Frontier Airlines, Southwest Airlines, United Airlines · Leg 2: Frontier Airlines, Southwest Airlines, United Airlines
Mon06:30 ONT09:25 DEN0h 50m connection10:15 DEN15:21 BWISouthwest Airlines
2Search
ONT Las Vegas (LAS) BWI
Leg 1: Frontier Airlines, Southwest Airlines · Leg 2: Southwest Airlines
Sun21:15 ONT22:05 LAS0h 55m connection23:00 LAS06:15 BWISouthwest Airlines
3Search
ONT Phoenix (PHX) BWI
Leg 1: American Airlines, Southwest Airlines · Leg 2: Southwest Airlines, Sun Country Airlines
Sun10:00 ONT11:02 PHX0h 58m connection12:00 PHX19:04 BWISouthwest Airlines
4Search
ONT Atlanta (ATL) BWI
Leg 1: Delta Air Lines · Leg 2: Delta Air Lines, Frontier Airlines, Southwest Airlines
Mon12:15 ONT19:13 ATL0h 47m connection20:00 ATL21:38 BWIDelta Air Lines
5Search
ONT Dallas (DFW) BWI
Leg 1: American Airlines, Frontier Airlines · Leg 2: American Airlines, Frontier Airlines
Mon06:00 ONT10:47 DFW0h 58m connection11:45 DFW15:30 BWIAmerican Airlines
6Search
ONT San Francisco (SFO) BWI
Leg 1: Frontier Airlines, United Airlines · Leg 2: Southwest Airlines, United Airlines
Tue06:15 ONT07:27 SFO1h 33m connection09:00 SFO17:02 BWIUnited Airlines
Connections are computed from flights actually flown over the last 8 weeks, with at least 45 minutes to change on one airline and 2 hours on separate tickets. Times are local. The search shows live itineraries and exact times.
Cheapest dates from Ontario to Baltimore
The lowest one-way fares found recently, cheapest first. Prices change; click through for the live fare.
Good to know
- Distance
- 3,673 km2,281 miles
- Journey time
- 8h 25mfastest found
- Time difference
- +3hBaltimore vs Ontario
- Currency in Baltimore
- USD
- Airports
- ONT → BWI
Flights from Ontario to Baltimore: questions answered
How much is a flight from Ontario to Baltimore?
The cheapest one-way fare we found recently is US$197 with 3 stops, departing in January. Return trips start from US$267. Prices change constantly, so search your dates for the live fare.
Are there direct flights from Ontario to Baltimore?
No. There is no nonstop service, so you will connect, most easily in Denver, Las Vegas and Phoenix. Some connections are on one airline or alliance, so your bags and connection are protected on a single ticket.
How long is the flight from Ontario to Baltimore?
With one connection the journey usually takes around 8h 25m, depending on the layover. The straight-line distance is 3,673 km.
Where do you change planes between Ontario and Baltimore?
The best connecting points are Denver (DEN), Las Vegas (LAS), Phoenix (PHX) and Atlanta (ATL). Frontier Airlines flies both legs via Denver, so you can book it as one ticket.
Which airports serve Ontario and Baltimore?
Ontario: Ontario International Airport (ONT). Baltimore: Baltimore/Washington International Thurgood Marshall Airport (BWI).
What is the time difference between Ontario and Baltimore?
Baltimore is 3 hours ahead of Ontario.
