Cheap Flight Tickets from Baltimore (BWI) to Ontario (ONT), Starting at $273

Good to Know: Cheapest and Fastest BWI - ONT Flights

Useful information for finding best airline tickets from Baltimore/Washington International Thurgood Marsha to Ontario International on your next trip.

Cheapest Round Trip Flight

$273

WN Southwest Airlines • 1 stop • 15h 10m

Aug 06 – Aug 12

The cheapest round trip flight from Baltimore to Ontario (BWI-ONT-BWI) is currently $273

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Cheapest One way Flight

$340

AS Alaska Airlines • 1 stop • 33h 57m

Aug 11

The cheapest one way flight from Baltimore to Ontario (BWI-ONT) is currently $340

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Cheapest Direct Flight

$352

AS Alaska Airlines • nonstop •

Aug 06

The cheapest nonstop flight from Baltimore to Ontario (BWI-ONT) is currently $352

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Fastest Flight

11h 59m

The fastest nonstop flight from Baltimore to Ontario (BWI-ONT) takes 11h 59m

Top Airlines Flying from Baltimore to Ontario

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Sun Country Airlines (SY)

Sun Country Airlines

Aeromexico Airline (AM)

Aeromexico

Latest Flight Deals from Baltimore (BWI) to Ontario (ONT)

Compare and book low fare round-trip air tickets from Baltimore to Ontario. Ideal for travelers with confirmed return itineraries.

Aug 06 - Aug 12, Economy
WN
Baltimore → Ontario
15h 10m
1:10 PM - 7:20 PM • 1 stop
WN
Baltimore → Ontario
10h 15m
10:55 AM - 8:10 PM • 1 stop
$273
Southwest Airlines
Aug 06 - Aug 12, Economy
WN
Baltimore → Ontario
17h 25m
11:35 AM - 7:20 PM • 1 stop
WN
Baltimore → Ontario
15h 25m
11:55 PM - 12:20 PM • 2 stops
$612
Southwest Airlines
Aug 06 - Aug 12, Economy
WN
Baltimore → Ontario
16h 40m
7:00 AM - 2:00 PM • 1 stop
WN
Baltimore → Ontario
15h 25m
11:55 PM - 12:20 PM • 2 stops
$612
Southwest Airlines
Aug 06 - Aug 12, Economy
WN
Baltimore → Ontario
13h 35m
3:25 PM - 8:40 PM • 1 stop
WN
Baltimore → Ontario
7h 35m
10:35 PM - 6:30 AM • nonstop
$862
Southwest Airlines
Aug 06 - Aug 12, Economy
UA
Baltimore → Ontario
11h 59m
4:23 PM - 8:42 PM • 1 stop
UA
Baltimore → Ontario
8h 25m
8:30 AM - 4:35 PM • nonstop
$917
United Airlines
Aug 06 - Aug 12, Economy
DL
Baltimore → Ontario
12h 17m
7:39 AM - 12:16 PM • 1 stop
DL
Baltimore → Ontario
10h 59m
11:30 AM - 9:29 PM • 1 stop
$926
Delta Airlines

Fly from Baltimore to Ontario with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Baltimore to Ontario? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Baltimore to Ontario Flights

What are the airports in Baltimore?
IAD,BWI,DCA
What’s the most popular airline flying from BWI to ONT?
The most popular airline flying from Baltimore to Ontario are
Can I fly from BWI to ONT non-stop?
Yes, you can fly BWI to ONT non-stop on
Which airlines fly nonstop between Baltimore and Ontario?
The non-stop flights between Baltimore and Ontario are .
What’s the earliest departure time from BWI to ONT Airport?
The earliest flight leaves BWI at 6:30 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Baltimore to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from BWI to ONT?
Read the fare rules of the Baltimore to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Baltimore and Ontario?
operate flights between Baltimore and Ontario
How long does a flight from Baltimore to Ontario take?
It takes approximately 5 hour to fly non-stop from BWI to ONT, which is 2282.96 miles by air.
Which airlines provide the cheapest flights from Baltimore (BWI) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from BWI were found on WN : USD 720
Do I need a passport to fly between BWI and ONT?
No
What’s the latest departure time from BWI to ONT ?
The last flight leaves BWI at 11:900 pm

Baltimore (BWI) to Ontario (ONT): Airport Information

Origin Airport Baltimore/Washington International Thurgood Marsha, Baltimore, US
Destination Airport Ontario International , Ontario, US
Distance 2283 miles

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