Menu

Cheap flights from Ontario to Baltimore (ONT - BWI)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from Ontario to Baltimore are usually found in August or January, booked 23 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

How to find the cheapest flight from
Ontario (ONT) to Baltimore (BWI)

ONT - BWI
Price
$235 - $419
BWI
Temperature
46.4 - 89.6 °F
BWI
Rainfall
2.7 - 4.6 inches

Popular in

December

High demand for flights, 27% potential price rise

Cheapest in

August

Best time to find cheap flights, 23% potential price drop

Round-trip from

$235

From Ontario to Baltimore

One-way from

$175

One-way flight from Ontario to Baltimore

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Ontario to Baltimore?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 51% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Ontario to Baltimore?

To save up to 111% on this flight, we recommend booking at least 31 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to Baltimore from $235 1-2 weeks out and tickets from $341 for flights departing within the next 72 hours.

What is the cheapest month to fly from Ontario to Baltimore?

Due to multiple factors, expect to potentially pay more when booking in September. For low rates, April can be a great choice for travel to Baltimore. Flights to Baltimore from Ontario in April are about $172 on average during April, but can be found for as low as $113.

When is the cheapest time to fly from Ontario to Baltimore (ONT - BWI)?

Unlike at noon, when flights are generally more expensive, you can save up to 40% on flights from Ontario to Baltimore by exploring options for tickets in the afternoon.

Cheap flights from Ontario to Baltimore in December, January 2021

The best prices found for ONT to BWI flights for December, January
14 Jan - 18 Jan
$115pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
BWI
Baltimore/Washington
BWI
Baltimore/Washington
Multiple Airlines
   
2 STOPS
ONT
Ontario
21 Jan - 25 Jan
$124pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
BWI
Baltimore/Washington
BWI
Baltimore/Washington
Multiple Airlines
   
2 STOPS
ONT
Ontario
14 Jan - 21 Jan
$137pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
BWI
Baltimore/Washington
BWI
Baltimore/Washington
Multiple Airlines
   
2 STOPS
ONT
Ontario

Ontario to Baltimore 2021 flight deals

Cheap flights to Baltimore from Ontario found for this year
10 Dec - 13 Dec
$148pp
ONT
Ontario
Frontier
 
1 STOP
BWI
Baltimore/Washington
BWI
Baltimore/Washington
Frontier
 
1 STOP
ONT
Ontario
10 Dec - 17 Dec
$168pp
ONT
Ontario
Multiple Airlines
 
1 STOP
BWI
Baltimore/Washington
BWI
Baltimore/Washington
Multiple Airlines
     
3 STOPS
ONT
Ontario
10 Dec - 14 Dec
$214pp
ONT
Ontario
Multiple Airlines
 
1 STOP
BWI
Baltimore/Washington
BWI
Baltimore/Washington
American Airlines
   
2 STOPS
ONT
Ontario

Last minute flights from Ontario to Baltimore

Late deals on round-trip flights to Baltimore from Ontario, departing today and this week
10 Dec - 13 Dec
$148pp
ONT
Ontario
Frontier
 
1 STOP
BWI
Baltimore/Washington
BWI
Baltimore/Washington
Frontier
 
1 STOP
ONT
Ontario
10 Dec - 17 Dec
$168pp
ONT
Ontario
Multiple Airlines
 
1 STOP
BWI
Baltimore/Washington
BWI
Baltimore/Washington
Multiple Airlines
     
3 STOPS
ONT
Ontario
10 Dec - 14 Dec
$214pp
ONT
Ontario
Multiple Airlines
 
1 STOP
BWI
Baltimore/Washington
BWI
Baltimore/Washington
American Airlines
   
2 STOPS
ONT
Ontario

One-way flights to Baltimore from Ontario

The cheapest one-way flights from Ontario to Baltimore
3:21 pm - 2:05 pm
Frontier
1 Stop
19h 44m
ONT - BWI
Frontier
5:00 am - 11:18 am
Alaska Airlines
2 Stops
27h 18m
ONT - BWI
Alaska Airlines
6:15 pm - 4:42 am
Delta
1 Stop
7h 27m
ONT - BWI
Delta
$239
Delta

Related info for your journey

Useful info, stats and facts about Ontario to Baltimore flights.

Flight FAQs

From Ontario to Baltimore

Are flight prices decreasing from Ontario to Baltimore due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Ontario and Baltimore for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Ontario to Baltimore/Washington to control the spread of COVID-19?

New policies can now be found on Alaska Airlines and Delta to help keep travelers safe while flying. New policies for travelers booking flights from Ontario to Baltimore/Washington include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Ontario to Baltimore/Washington have flexible cancellations due to COVID-19?

American Airlines, Frontier, and United Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Ontario to Baltimore for under $200 on Cheapflights?

Yes, there are multiple flights from Ontario to Baltimore for under $200. The cheapest flight booked recently is on Multiple Airlines for just $113, but on average you can expect to pay $161.

Are there nonstop flights from Ontario to Baltimore for under $100 on Cheapflights?

There are no nonstop flights from Ontario to Baltimore, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Ontario to Baltimore for under $200?

There are currently 18+ open flights from Ontario to Baltimore within the next 7 days for less than $200.

What days are nonstop flights available from Ontario to Baltimore?

Nonstop flights are available for this route on the following days: Friday, Saturday.

Does it rain more in Ontario or Baltimore?

The rainfall in Ontario is generally more than the rainfall in Baltimore. This will continue over the next 7 days.

Is Ontario weather warmer or cooler than Baltimore?

Expect the weather to be around 95 °F on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Baltimore is generally colder than in Ontario.

How long is the flight from Ontario to Baltimore?

For as low as $318, United Airlines can have you in Baltimore from Ontario in 6h 21m. This flight may include one or multiple stops.

What are the cheapest airlines flying from Ontario to Baltimore round-trip?

According to our current data, Frontier ($148), and American Airlines ($264) offers the cheapest pricing from Ontario to Baltimore. Frontier is 51% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Ontario to Baltimore one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $69. However, be on the lookout for offers from United Airlines and Delta, as they are both options that can get you from Ontario to Baltimore for a low price.

Alternative routes for Ontario to Baltimore

Destination information for Baltimore

Things to know before you go. Useful info for your trip from Ontario to Baltimore
Average temperature for December in Baltimore
48.2 °F
Avg rainfall for December in Baltimore
3.5 ″

Airports servicing Ontario

Airports servicing Baltimore

Top 6 airlines from Ontario to Baltimore

The chart below displays the airlines Cheapflights users traveling from Ontario to Baltimore choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Spirit Airlines
$175 $272 No cancel fee 65%
Frontier
$119 $277 No cancel fee 62%
Alaska Airlines
$140 $320 No cancel fee 75%
United Airlines
$117 $369 No cancel fee 69%
Delta
$132 $383 No cancel fee N/A
American Airlines
$140 $461 No cancel fee 71%
Home North America USA Maryland Baltimore Cheap flights from Ontario to Baltimore