Frontier Airlines flights from DEN to ONT
Find comprehensive Frontier Airlines flight information, schedules, and booking details for direct flights from DEN to ONT. Frontier Airlines operates 7-12 flights daily flights on this route.• Flight Duration: 2h 13m - 2h 40m (average flight time)• Distance: 822 miles (1323 km) (air miles between airports)• Daily Flights: 7-12 flights (scheduled departures per day)
DEN
ONT
FLIGHT TIME
2h 13m - 2h 40m
FLIGHT DISTANCE
822 miles (1323 km)
2h 28m - 2h 28m
10:00
22:29
822 miles (1323 km)
February
1 (Show)
60
Frontier Airlines Flight Schedule from DEN to ONT
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
F91261 |  Frontier Airlines | 10:00 | 11:28:00 | Airbus A320neo |
F91499 | Frontier Airlines | 22:29 | 23:57:00 | Airbus A320neo |
Frontier Airlines Monthly Flight Calendar
December 2025
Route Insights
Duration variability: Flight duration on this route can vary based on aircraft type, wind conditions, and airline scheduling. Average duration is 2h 13m - 2h 40m.
Pricing patterns: February typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 10:00, 22:00, offering more flight options and potentially better connections.
DEN - ONT flight price statistics
$184
ApproximateThe numbers are average prices found based on user searches for direct flights between the airports. It's calculated from the cheapest prices found per month for a round-trip with 1 adult and can vary depending on the amount of data we have for this particular route.
$88
Jan$39
Feb$39
Mar$46
Apr$237
May$158
Jun$136
Jul$136
Aug$136
Sep$288
Oct$439
Nov$466
DecFrontier Airlines Terminal Information
Terminal information for Frontier Airlines on this route is currently being updated. Please check back soon or contact the airports directly for terminal details.
Frequently Asked Questions about Frontier Airlines Flights
How many Frontier Airlines flights operate from DEN to ONT?
Frontier Airlines operates 2 flights from DEN to ONT.
What city does ONT airport serve?
ONT airport serves Ontario.
How long is the Frontier Airlines flight from DEN to ONT?
The flight duration is approximately 2h 13m - 2h 40m.
What is the distance from DEN to ONT?
The distance is 822 miles (1323 km).
What aircraft does Frontier Airlines use on this route?
Frontier Airlines uses Airbus A320neo on this route.
Which other airlines operate on this route?
2 other airlines operate on this route: Southwest Airlines, United Airlines.
What are the earliest and latest Frontier Airlines flight departure times?
The earliest Frontier Airlines flight departs at 10:00 and the latest departs at 22:29.
What is the cheapest month to fly Frontier Airlines from DEN to ONT?
February is typically the cheapest month to fly Frontier Airlines on this route.
What is the average price for a Frontier Airlines flight from DEN to ONT?
The average price for a round-trip Frontier Airlines flight on this route is approximately $184. Prices can vary based on booking time and demand.
How many Frontier Airlines flights operate per week on this route?
Frontier Airlines operates approximately 60 flights per week from DEN to ONT.