Cheap flights from Ontario to Maryland from $100
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Maryland departing on 6/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Ontario to Maryland
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Maryland?
The cheapest month to fly to Maryland from Ontario is in May. Flight prices, which tend to average around $228, are often lower during this time because this is during the off-season. If you don’t want to visit Maryland in May, then you should wait until August to fly from Ontario, when ticket prices are also cheap, with an average price of $275.
What is the cheapest day to depart on your flight to Maryland?
The cheapest day to depart from Ontario to Maryland is on a Wednesday. Travelers who choose to depart for Maryland on a Wednesday will often find tickets for as low as $314. The most expensive day to fly to Maryland is Sunday, with ticket prices averaging around $492.
What is the cheapest time of day to depart on your flight to Maryland?
Our most recent data shows that the best time of day to fly to Maryland is in the afternoon. Flights from Ontario to Maryland during this time can be as low as $288. In contrast, the most expensive time of day to depart to Maryland is at noon when prices are around $423.
What is the cheapest Ontario to Maryland flight route?
Fly from Ontario to Baltimore/Washington for the best Ontario - Maryland flight prices
How far in advance should I book a flight to Maryland?
You are more likely to see cheaper flights to Maryland from Ontario when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to Maryland for around $444 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Maryland from Ontario for as low as $297 on momondo.
What cabin class options are available on Ontario to Maryland flights?
There are 1 cabin classes available to choose from on Ontario to Maryland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Ontario to Maryland?
Frontier, Hawaiian Airlines, and Southwest are the most popular carriers operating from Ontario to Maryland
What airlines fly to Maryland?
Spirit Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Maryland from Ontario according to our data. Spirit Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Maryland. Keep in mind that there are 7 different airlines that fly to Maryland on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ontario to Maryland on average per day?
The number of flights available between Ontario and Maryland is 3 per day as of June 2025. The most frequent departure time is 9:00PM, with 100% of daily flights leaving in the evening.
How many flights depart from Ontario to Maryland on average per week?
21 flights are operational weekly from Ontario to Maryland as of June 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.
Cheap Ontario to Maryland flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Maryland
When did momondo last update prices for flights from Ontario Airport to Maryland?
Prices for flights from Ontario Airport to Maryland were last updated today.
How many operators does momondo search for flights from Ontario Airport to Maryland?
As of June 2025, there are 6 operators available to choose from for flights from Ontario Airport to Maryland.
How old do you have to be to fly from Ontario Airport to Maryland?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Maryland.
What documentation or ID do you need to fly to Maryland?
The travel and health documents required for your trip to Maryland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Maryland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Ontario to Maryland?
momondo data reveals that the most frequently booked plane model on the route from Ontario to Maryland is Boeing 737 MAX 8, representing 18.72% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 15.76%, Boeing 737 MAX 9 at 13.79%, and Airbus A320neo at 7.39%.
Best airlines flying from Ontario to Maryland
Compare and see reviews for airlines that fly from Ontario to Maryland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $130 | Free Cancellation | Rating 6.3 8,061 reviews | |||
| PriceFrom $148 | Free Cancellation | Rating 5.9 3,296 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $296 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $296 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $331 | Free Cancellation | Rating 8.0 4,278 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ontario to Maryland?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Maryland. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Ontario to Maryland with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Ontario to Maryland flights to just show those with flexible booking policies.
How can momondo help me find flights from Ontario to Maryland?
momondo helps you find the best flight between Ontario and Maryland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Ontario to Maryland right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Maryland, momondo offers a useful price alert feature which will track prices for flights to Maryland from Ontario and alert you when they change.