Flight Routes from Baltimore to Ontario

Trip type

Our cheapest offers for flights from Baltimore (BWI) to Ontario (ONT)

Here you can compare cheap flights from Baltimore (BWI) to Ontario (ONT) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Ontario. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Baltimore
Ontario
Outbound
08/20/26
1 Stopover (IAH)
F93067, F93131
28h 23min
Return
08/25/26
1 Stopover (IAH)
F93132, F93068
23h 54min
Frontier Airlines
$312
Best option
Baltimore
Ontario
Outbound
09/01/26
1 Stopover (IAH)
F93067, F93131
08h 37min
Return
09/09/26
1 Stopover (SEA)
AS0607, AS0378
09h 06min
Frontier Airlines
$396
Baltimore
Ontario
Please note: transfer for connecting flight
Outbound
08/20/26
1 Stopover (IAH)
F93067, F93131
28h 23min
Return
08/25/26
1 Stopover (DFW)
F91406, F93788
20h 20min
Frontier Airlines
$464
Baltimore
Ontario
Outbound
09/01/26
1 Stopover (IAH)
F93067, F93131
08h 37min
Return
09/09/26
1 Stopover (SEA)
AS0607, AS0378
09h 06min
Frontier Airlines
$399
Baltimore
Ontario
Outbound
08/20/26
1 Stopover (IAH)
F93067, F93131
28h 23min
Return
08/25/26
1 Stopover (IAH)
F93132, F93068
23h 54min
Frontier Airlines
$473
Baltimore
Ontario
Outbound
08/20/26
1 Stopover (SEA)
AS0786, AS0571
09h 20min
Return
08/25/26
1 Stopover (SEA)
AS0607, AS0378
09h 02min
Alaska Airlines
$531
Baltimore
Ontario
Outbound
09/01/26
1 Stopover (PDX)
AS0653, AS2170
20h 05min
Return
09/09/26
1 Stopover (SEA)
AS0607, AS0378
09h 06min
Alaska Airlines
$543
Baltimore
Ontario
Outbound
09/01/26
3 Stopovers (CLT, SEA, STS)
AA1216, AA1674, AS1321, AS3032
26h 22min
Return
09/09/26
3 Stopovers (PDX, SEA, DFW)
AS0544, AS1536, AA2748, AA2805
32h 29min
American Airlines, Alaska Airlines ?
$635
Baltimore
Ontario
Outbound
09/01/26
1 Stopover (DFW)
AA1403, AA2956
07h 17min
Return
09/09/26
1 Stopover (DFW)
AA1820, AA2251
08h 04min
American Airlines ?
$666
Baltimore
Ontario
Outbound
01/01/27
1 Stopover (SEA)
AS0349, AS1367
09h 56min
Return
01/08/27
1 Stopover (SEA)
AS1363, AS0379
26h 11min
Alaska Airlines
$675
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Baltimore to Ontario

Favorite airline: Frontier Airlines
40 % of flights from Baltimore to Ontario are booked with Frontier Airlines.
Frontier Airlines
40 %
Delta
20 %
United Airlines
20 %
Favourite connection: via Denver
Stopover flights on this route are especially popular via Denver, making up 86 % of bookings.
Route
bookings
1 stopover Denver International Airport, CO
12h 41min, from 323 US$
86 %
1 stopover Seattle-Tacoma International Airport, WA
19h 54min, from 459 US$
14 %

Important flight information

Flight information: Baltimore - Ontario

Roundtrip from 311,98 US$
Flight duration min. 07:45
Return flight duration min. 05:35
Distance 3670 km
Flights per week 6
Departure airport Airport Baltimore-Washington International-Thurgood Marshall Airport, MD (BWI)
Arrival airport Airport Ontario-CA (ONT)
Destination country Flights to United States
Departure airport - Destination country Baltimore-Washington International-Thurgood Marshall Airport, MD - United States
Alternative routes to United States
Alternative flights to Ontario
Flight destinations with a similar price
Flight destinations with a similar price