$102 Cheap Frontier Airlines flights Ontario (ONT) to Baltimore (BWI)

View $102 flight on Thu, Jan 15, 2026Opens in a new window

$102 Cheap Frontier Airlines flights Ontario (ONT) to Baltimore (BWI)

Prices were available within the past 7 days and start at $102 for one-way flights and $227 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Jan 15 - Sun, Jan 18
ONT
Ontario
BWI
Baltimore
$227 Roundtrip, found 1 day ago
$227
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Jan 15 from Ontario to Baltimore, returning Sun, Jan 18, priced at $227 found 1 day ago
Frontier Airlines
Fri, Jan 16 - Sun, Jan 18
ONT
Ontario
BWI
Baltimore
$262 Roundtrip, found 1 day ago
$262
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Jan 16 from Ontario to Baltimore, returning Sun, Jan 18, priced at $262 found 1 day ago

Find the cheapest month to fly from Ontario (ONT) to Baltimore (BWI)

April is typically the cheapest month to fly

From $160 - $648 per traveler.

Alternative airports near Baltimore

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $262
BWI
Baltimore Washington Intl. Thurgood Marshall
CheapestClosest
Average driving time to city center16 min
Flights from $262
Flights from Ontario (ONT) to Baltimore (BWI)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Popular airline
Delta
Distance
3643 km
Average flight time
7 hours 45 mins