Cheap Flight Tickets from Ontario (ONT) to Baltimore (BWI), Starting at $335

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

$335

DL Delta Airlines • 1 stop • 12h 1m

Sep 09 – Sep 14

The cheapest round trip flight from Ontario to Baltimore (ONT-BWI-ONT) is currently $335

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Fastest Flight

10h 40m

The fastest nonstop flight from Ontario to Baltimore (ONT-BWI) takes 10h 40m

Top Airlines Flying from Ontario to Baltimore

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

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.

Sep 09 - Sep 14, Economy
DL
Ontario → Baltimore
12h 1m
7:05 AM - 5:26 PM • 1 stop
DL
Ontario → Baltimore
15h 5m
12:02 PM - 6:07 PM • 1 stop
$335
Delta Airlines
Sep 09 - Sep 14, Economy
WN
Ontario → Baltimore
15h
11:55 PM - 11:55 AM • 1 stop
WN
Ontario → Baltimore
10h 55m
10:05 AM - 2:00 PM • 1 stop
$385
Southwest Airlines
Sep 09 - Sep 14, Economy
WN
Ontario → Baltimore
14h 5m
6:40 AM - 6:25 PM • 1 stop
WN
Ontario → Baltimore
10h 55m
10:05 AM - 2:00 PM • 1 stop
$385
Southwest Airlines
Sep 09 - Sep 14, Economy
WN
Ontario → Baltimore
12h 25m
7:00 AM - 5:45 PM • 1 stop
WN
Ontario → Baltimore
11h 55m
6:00 PM - 10:15 PM • 1 stop
$385
Southwest Airlines
Sep 09 - Sep 14, Economy
WN
Ontario → Baltimore
10h 40m
7:25 AM - 5:05 PM • 1 stop
WN
Ontario → Baltimore
15h 10m
1:10 PM - 7:20 PM • 1 stop
$385
Southwest Airlines
Sep 09 - Sep 14, Economy
AS
Ontario → Baltimore
25h 18m
12:12 PM - 6:30 AM • 1 stop
AS
Ontario → Baltimore
15h 26m
7:50 AM - 2:16 PM • 1 stop
$424
Alaska 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?
NO
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 6:40 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 WN : USD 385
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 11:55 pm

Essential Information for Booking Flights from Ontario (ONT) - AI Insights

What's the cheapest airline from ont to bwi?
You can find affordable flights from Ontario to Baltimore/Washington International Thurgood Marshall Airport (BWI) on budget-friendly airlines like Frontier Airlines. For a round-trip journey, consider booking in advance to secure Low Fares. With 43 days of advance booking, you may be able to snag cheap airfare deals.
What's the popular airline to fly from ont to bwi?
You can fly from Ontario International Airport (ONT) to Baltimore/Washington International Thurgood Marshall Airport (BWI) on Southwest Airlines. This is a popular airline option for round-trip flights, offering budget-friendly airfares and convenient travel options. Please book in advance to secure the best rates.
What's the cheapest day of the week to fly from ont to bwi?
The cheapest day to fly from Ontario International (ONT) to Baltimore/Washington International Thurgood Marshall Airport (BWI) is Thursday. Flying on this day can result in budget-friendly flights, making it a cost-effective option for your round-trip journey.
What's the cheapest month to fly from ont to bwi?
The cheapest month to fly from Ontario International Airport (ONT) to Baltimore/Washington International Thurgood Marshall Airport (BWI) is November. Flying during this time can help you find budget-friendly flights, especially if you book in advance.
Which airline/airlines fly from ont to bwi?
The airlines that fly from Ontario International Airport (ONT) to Baltimore/Washington International Thurgood Marshall Airport (BWI) include American Airlines, Frontier Airlines, Sun Country Airlines, United Airlines, Aeromexico, Volaris Airline, Delta Airlines, JetBlue Airways, Alaska Airlines, and Southwest Airlines. You can find the cheapest flights on our website for your round-trip journey in July.
What is the cheapest airfare from Ontario International to Baltimore/Washington International Thurgood Marsha?
The cheapest airfare from Ontario International to Baltimore/Washington International Thurgood Marsha can be found on Frontier Airlines (F9) with a round trip economy flight available for booking in advance.
How many advance booking days do I need for a round trip economy flight?
For a round trip economy flight, it is recommended to book at least 43 advance booking days in advance.
Can I book flights directly on fareleaders.com or should I use an airline's website?
You can book flights directly on fareleaders.com for the best deals and convenience.
Are there any discounts available for weekend travel in July?
Yes, there are discounts available for weekend travel in July. Check the airlines' websites or fareleaders.com for the latest offers.
What is the average airfare per person for a 2-person group traveling from Milwaukee?
The average airfare per person for a 2-person group traveling from Milwaukee can be found on Southwest Airlines (WN) with a round trip economy flight available for booking in advance.

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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