Cheap Flight Tickets from Ontario (ONT) to Baltimore (BWI), Starting at $135

Good to Know: Cheapest and Fastest ONT - BWI Flights

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

Cheapest Round Trip Flight

$432

DL Delta Airlines • 1 stop • 15h 40m

Jul 18 – Jul 23

The cheapest round trip flight from Ontario to Baltimore (ONT-BWI-ONT) is currently $432

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Cheapest One way Flight

$135

AS Alaska Airlines • 1 stop • 15h 15m

Jul 24

The cheapest one way flight from Ontario to Baltimore (ONT-BWI) is currently $135

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Cheapest Direct Flight

$623

WN Southwest Airlines • nonstop • 7h 30m

Jul 13

The cheapest nonstop flight from Ontario to Baltimore (ONT-BWI) is currently $623

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Fastest Flight

7h 30m

The fastest nonstop flight from Ontario to Baltimore (ONT-BWI) takes 7h 30m

Top Airlines Flying from Ontario to Baltimore

American Airlines, AA

American Airlines

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

Alaska Airlines -AS

Alaska Airlines

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

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

Jul 18 - Jul 23, Economy
DL
Ontario → Baltimore
15h 40m
7:05 AM - 7:45 PM • 1 stop
DL
Ontario → Baltimore
12h 30m
5:00 PM - 9:50 PM • 1 stop
$432
Delta Airlines
Jul 19 - Jul 24, Economy
AA
Ontario → Baltimore
13h 28m
12:35 PM - 11:43 PM • 1 stop
AA
Ontario → Baltimore
12h 22m
7:17 PM - 11:59 PM • 1 stop
$727
American Airlines
Jul 19 - Jul 24, Economy
AA
Ontario → Baltimore
13h 36m
10:10 PM - 9:26 AM • 1 stop
AA
Ontario → Baltimore
12h 22m
7:17 PM - 11:59 PM • 1 stop
$727
American Airlines
Jul 19 - Jul 24, Economy
AA
Ontario → Baltimore
13h 28m
12:35 PM - 11:43 PM • 1 stop
AA
Ontario → Baltimore
8h 54m
6:20 AM - 8:54 AM • nonstop
$758
American Airlines
Jul 19 - Jul 24, Economy
AA
Ontario → Baltimore
13h 36m
10:10 PM - 9:26 AM • 1 stop
AA
Ontario → Baltimore
8h 54m
6:20 AM - 8:54 AM • nonstop
$758
American Airlines
Jul 18 - Jul 23, Economy
WN
Ontario → Baltimore
7h 30m
9:40 PM - 5:30 AM • nonstop
WN
Ontario → Baltimore
8h 35m
8:10 PM - 10:25 PM • nonstop
$1117
Southwest Airlines

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

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

FAQs on Ontario to Baltimore Flights

What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to BWI?
The most popular airline flying from Ontario to Baltimore are
Can I fly from ONT to BWI non-stop?
Yes, you can fly ONT to BWI non-stop on
Which airlines fly nonstop between Ontario and Baltimore?
The non-stop flights between Ontario and Baltimore are .
What’s the earliest departure time from ONT to BWI Airport?
The earliest flight leaves ONT at 7:05 am and lands in BWI - Baltimore/Washington International Thurgood Marsha
What are the airports in Baltimore?
IAD,BWI,DCA
Can I make changes to my Ontario to Baltimore 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 ONT to BWI?
Read the fare rules of the Ontario to Baltimore 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 Ontario and Baltimore?
operate flights between Ontario and Baltimore
How long does a flight from Ontario to Baltimore take?
It takes approximately 5 hour to fly non-stop from ONT to BWI, which is 2282.96 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to Baltimore (BWI) ?
In the past couple of days, the cheapest tickets to BWI from ONT were found on DL : USD 1071
Do I need a passport to fly between ONT and BWI?
No
What’s the latest departure time from ONT to BWI ?
The last flight leaves ONT at 10:10 pm

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

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

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