$86+ Cheap flights from Ontario to Baltimore (ONT - BWI)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BWI
3월 11 — 3월 181
1 adult, Economy
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Find cheap flights from Ontario to Baltimore with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Ontario to Baltimore/Washington are usually found in May or March, booked 70 days in advance, depart on a Tuesday or Thursday and return on a Tuesday
Cheap flight deals from Ontario to Baltimore
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to BaltimoreExplore the most affordable flight options available from Ontario to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2월 9, 2026.
Explore the most affordable flight options available from Ontario to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2월 9, 2026.
This Expedia deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 4/85:18 pm
ONT
- BWI
1 stop13h 06m
Frontier
일 4/1210:34 am
BWI
- ONT
1 stop11h 11m
Frontier
Deal found 2/6![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 4/2112:59 am
ONT
- BWI
2 stops28h 13m
Multiple Airlines
월 4/275:45 am
BWI
- ONT
1 stop13h 53m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 4/178:26 am
ONT
- BWI
1 stop22h 31m
Multiple Airlines
일 4/198:59 pm
BWI
- ONT
1 stop22h 39m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$218
This Frontier deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 4/15:18 pm
ONT
- BWI
1 stop13h 11m
Frontier
수 4/153:06 pm
BWI
- ONT
1 stop8h 33m
Frontier
Deal found 2/5![Frontier logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
목 4/238:26 am
ONT
- BWI
1 stop22h 31m
Multiple Airlines
월 4/277:34 pm
BWI
- ONT
2 stops31h 21m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 4/137:35 pm
ONT
- BWI
1 stop15h 41m
Frontier
수 4/226:05 am
BWI
- ONT
2 stops20h 50m
Frontier
Deal found 2/7![Frontier logo]()
$244
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 4/175:05 pm
ONT
- BWI
1 stop9h 55m
Delta
토 4/257:15 am
BWI
- ONT
1 stop7h 59m
Delta
Deal found 2/8![Delta logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 5/112:59 am
ONT
- BWI
2 stops28h 13m
Frontier
목 5/710:58 am
BWI
- ONT
1 stop15h 26m
Frontier
Deal found 2/7![Frontier logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
목 4/235:33 pm
ONT
- BWI
2 stops19h 40m
Multiple Airlines
일 4/265:45 am
BWI
- ONT
1 stop13h 53m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$260
Best flights from Ontario to BaltimoreDiscover carefully curated flight deals from Ontario to Baltimore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 2월 9, 2026.
Discover carefully curated flight deals from Ontario to Baltimore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 2월 9, 2026.
This Delta deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
토 3/710:20 pm
ONT
- BWI
1 stop7h 19m
Delta
화 3/106:00 am
BWI
- ONT
1 stop8h 47m
Delta
Deal found 2/7![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
토 5/91:40 pm
ONT
- BWI
1 stop6h 47m
United Airlines
토 5/233:00 pm
BWI
- ONT
1 stop9h 40m
United Airlines
Deal found 2/8![United Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 4/1512:49 pm
ONT
- BWI
1 stop6h 41m
Delta
토 4/1812:00 pm
BWI
- ONT
1 stop9h 33m
Delta
Deal found 2/9![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
목 2/261:10 pm
ONT
- BWI
1 stop7h 34m
Delta
화 3/37:05 am
BWI
- ONT
1 stop8h 02m
Delta
Deal found 2/8![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
목 5/76:59 pm
ONT
- BWI
2 stops12h 05m
United Airlines
일 5/106:05 am
BWI
- ONT
1 stop9h 17m
United Airlines
Deal found 2/6![United Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 4/175:05 pm
ONT
- BWI
1 stop9h 55m
Delta
토 4/2512:00 pm
BWI
- ONT
1 stop9h 33m
Delta
Deal found 2/6![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 3/1010:25 pm
ONT
- BWI
1 stop8h 14m
Delta
화 3/177:01 am
BWI
- ONT
1 stop8h 22m
Delta
Deal found 2/8![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 4/175:05 pm
ONT
- BWI
1 stop9h 55m
Delta
일 4/197:00 am
BWI
- ONT
1 stop7h 36m
Delta
Deal found 2/8![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 3/1010:25 pm
ONT
- BWI
1 stop8h 14m
Delta
수 3/187:01 am
BWI
- ONT
1 stop8h 22m
Delta
Deal found 2/8![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 2/1310:20 pm
ONT
- BWI
2 stops12h 56m
Delta
일 2/157:05 am
BWI
- ONT
1 stop8h 02m
Delta
Deal found 2/7![Delta logo]()
$282
Last-minute flights from Ontario to BaltimoreDiscover last-minute flight deals from Ontario to Baltimore. Data last updated 2월 9, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Baltimore. Data last updated 2월 9, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 2/116:00 am
ONT
- BWI
2 stops12h 21m
United Airlines
수 2/1810:30 am
BWI
- ONT
2 stops15h 27m
United Airlines
Deal found 2/6![United Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 2/1310:20 pm
ONT
- BWI
1 stop8h 40m
Delta
일 2/157:05 am
BWI
- ONT
1 stop8h 02m
Delta
Deal found 2/8![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 2/1710:20 pm
ONT
- BWI
1 stop8h 03m
Delta
수 2/257:15 am
BWI
- ONT
1 stop7h 47m
Delta
Deal found 2/6![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 2/185:00 pm
ONT
- BWI
2 stops13h 23m
Delta
수 2/256:00 am
BWI
- ONT
1 stop9h 02m
Delta
Deal found 2/6![Delta logo]()
$272
This CheapOair deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 2/1812:02 pm
ONT
- BWI
1 stop26h 44m
Alaska Airlines
월 3/26:46 pm
BWI
- ONT
1 stop19h 22m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$310
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 2/201:10 pm
ONT
- BWI
1 stop7h 34m
Delta
일 2/227:05 am
BWI
- ONT
1 stop8h 02m
Delta
Deal found 2/6![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 2/241:45 pm
ONT
- BWI
1 stop6h 40m
United Airlines
토 2/286:20 am
BWI
- ONT
2 stops14h 21m
United Airlines
Deal found 2/9![United Airlines logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 3/69:06 am
ONT
- BWI
2 stops27h 52m
Frontier
월 3/96:31 pm
BWI
- ONT
1 stop23h 34m
Frontier
Deal found 2/8![Frontier logo]()
$291
This United Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 3/66:37 pm
ONT
- BWI
1 stop9h 42m
United Airlines
월 3/94:03 pm
BWI
- ONT
1 stop7h 47m
United Airlines
Deal found 2/8![United Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 3/274:22 pm
ONT
- BWI
1 stop13h 52m
Multiple Airlines
월 3/309:43 pm
BWI
- ONT
2 stops18h 45m
Multiple Airlines
Deal found 2/7![Multiple Airlines logo]()
$311
One-way flights from Ontario to BaltimoreSearch for one-way flight options from Ontario to Baltimore. Find affordable one-way fares based on user searches. Data last updated 2월 9, 2026.
Search for one-way flight options from Ontario to Baltimore. Find affordable one-way fares based on user searches. Data last updated 2월 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 3/106:15 am
ONT
- BWI
2 stops29h 09m
Frontier
Deal found 2/9![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 5/412:59 am
ONT
- BWI
2 stops20h 50m
Frontier
Deal found 2/7![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 5/812:59 am
ONT
- BWI
2 stops28h 13m
Frontier
Deal found 2/7![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 5/88:26 am
ONT
- BWI
1 stop22h 31m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$103
This Super.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 4/85:18 pm
ONT
- BWI
1 stop13h 06m
Frontier
Deal found 2/8![Frontier logo]()
$104
This Trip.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 3/304:22 pm
ONT
- BWI
1 stop13h 52m
Multiple Airlines
Deal found 2/7![Multiple Airlines logo]()
$105
This Trip.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
목 4/168:26 am
ONT
- BWI
1 stop23h 46m
Frontier
Deal found 2/9![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 3/234:22 pm
ONT
- BWI
1 stop13h 52m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 3/32:06 pm
ONT
- BWI
3 stops24h 41m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$116
This Trip.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 2/253:22 pm
ONT
- BWI
2 stops14h 44m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 3/32:06 pm
ONT
- BWI
2 stops24h 41m
Frontier
Deal found 2/6![Frontier logo]()
$118
Find flight deals from Ontario to Baltimore
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Baltimore (BWI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 2월 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $207 (Kiwi.com) |
One-way from | $86 (Kiwi.com) |
Popular in | June |
Cheapest in | May |
Average price | $472 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Baltimore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated 2월 9, 2026.
Use the filters below to find and compare flights from Ontario to Baltimore that are best for you.
Fly from
Ontario
Fly to
Baltimore
Route
Depart
Return
Price
OntarioBaltimore
ONT - BWI
ONTBWI
Ontario
토 3/7
10:20 pm-8:39 am
1 stop7h 19m
Baltimore/Washington
화 3/10
6:00 am-11:47 am
1 stop8h 47m
$257
OntarioBaltimore
ONT - BWI
ONTBWI
Ontario
토 5/9
1:40 pm-11:27 pm
1 stop6h 47m
Baltimore/Washington
토 5/23
3:00 pm-9:40 pm
1 stop9h 40m
$257
OntarioBaltimore
ONT - BWI
ONTBWI
Ontario
수 4/15
12:49 pm-10:30 pm
1 stop6h 41m
Baltimore/Washington
토 4/18
12:00 pm-6:33 pm
1 stop9h 33m
$257
OntarioBaltimore
ONT - BWI
ONTBWI
Ontario
목 2/26
1:10 pm-11:44 pm
1 stop7h 34m
Baltimore/Washington
화 3/3
7:05 am-12:07 pm
1 stop8h 02m
$257
OntarioBaltimore
ONT - BWI
ONTBWI
Ontario
금 4/17
5:05 pm-6:00 am
1 stop9h 55m
Baltimore/Washington
토 4/25
12:00 pm-6:33 pm
1 stop9h 33m
$257
OntarioBaltimore
ONT - BWI
ONTBWI
Ontario
화 3/10
10:25 pm-9:39 am
1 stop8h 14m
Baltimore/Washington
화 3/17
7:01 am-12:23 pm
1 stop8h 22m
$257
OntarioBaltimore
ONT - BWI
ONTBWI
Ontario
금 4/17
5:05 pm-6:00 am
1 stop9h 55m
Baltimore/Washington
일 4/19
7:00 am-11:36 am
1 stop7h 36m
$257
OntarioBaltimore
ONT - BWI
ONTBWI
Ontario
화 3/10
10:25 pm-9:39 am
1 stop8h 14m
Baltimore/Washington
수 3/18
7:01 am-12:23 pm
1 stop8h 22m
$257
OntarioBaltimore
ONT - BWI
ONTBWI
Ontario
금 2/13
10:20 pm-2:16 pm
2 stops12h 56m
Baltimore/Washington
일 2/15
7:05 am-12:07 pm
1 stop8h 02m
$282
OntarioBaltimore
ONT - BWI
ONTBWI
Ontario
목 5/7
6:59 pm-10:04 am
2 stops12h 05m
Baltimore/Washington
일 5/10
6:05 am-12:22 pm
1 stop9h 17m
$299
Showing 1-10 of 20 results
Compare providers for flights from Ontario to Baltimore
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Baltimore in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Baltimore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Baltimore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Baltimore flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Baltimore flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Baltimore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to Baltimore
Have a flexible travel schedule? Discover the best time to fly to Baltimore from Ontario with our price prediction graph.
ONT-BWI
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Baltimore
How far ahead should I book a flight from Ontario to Baltimore?
Use this chart to determine the optimal time to book a round-trip flight from Ontario to Baltimore. Price data was last updated on February 6, 2026.
The best time to book flights from Ontario to Baltimore is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Ontario to Baltimore?
Currently, August is the cheapest month in which you can book a flight from Ontario to Baltimore (average of $93). Flying from Ontario to Baltimore in December is currently the most expensive (average of $179). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Baltimore
Get insights into the airlines that provide service to Baltimore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Baltimore. Reviews last updated 2월 9, 2026.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Ontario to Baltimore. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Baltimore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
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Search flights from Ontario to Baltimore by cabin class
Find flights from Ontario to Baltimore, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Baltimore flights
Browse other Ontario and Baltimore flight options. Last updated on 2월 9, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on 2월 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Ontario to Baltimore
Discover the top 6 airlines that operate flights from Ontario to Baltimore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated 2월 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$72 | Average$224 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$136 | Average$228 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$183 | Average$400 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$276 | Average$438 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$337 | Average$471 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$346 | Average$544 | FlexibilityNo cancel fee | On-time71% |