
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $242 (Trip.com) |
One-way from | $65 (CheapOair) |
Popular in | June |
Cheapest in | February |
Average price | $339 |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Ontario
DCA - ONT
DCAONT
Washington, D.C. Reagan-National
Thu 12/25
2:00 pm-11:59 pm
1 stop12h 59m
Ontario
Wed 12/31
6:45 am-9:59 pm
1 stop12h 14m
Washington, D.C.Ontario
DCA - ONT
DCAONT
Washington, D.C. Reagan-National
Tue 11/25
8:00 am-3:26 pm
1 stop10h 26m
Ontario
Wed 11/26
12:58 am-4:57 pm
1 stop12h 59m
Washington, D.C.Ontario
DCA - ONT
DCAONT
Washington, D.C. Reagan-National
Tue 11/18
6:00 am-11:06 am
1 stop8h 06m
Ontario
Tue 11/18
10:25 pm-9:10 am
1 stop7h 45m
Washington, D.C.Ontario
DCA - ONT
DCAONT
Washington, D.C. Reagan-National
Thu 11/20
6:00 am-11:06 am
1 stop8h 06m
Ontario
Wed 12/3
12:12 pm-9:41 pm
1 stop6h 29m
Washington, D.C.Ontario
DCA - ONT
DCAONT
Washington, D.C. Reagan-National
Wed 11/19
6:00 am-10:34 am
1 stop7h 34m
Ontario
Wed 11/19
10:25 pm-12:29 pm
2 stops11h 04m
Washington, D.C.Ontario
DCA - ONT
DCAONT
Washington, D.C. Reagan-National
Sat 11/15
7:00 am-10:06 pm
2 stops18h 06m
Ontario
Tue 11/18
10:25 pm-4:19 pm
2 stops14h 54m
Washington, D.C.Ontario
DCA - ONT
DCAONT
Washington, D.C. Reagan-National
Thu 11/20
6:00 am-11:06 am
1 stop8h 06m
Ontario
Thu 11/20
10:25 pm-9:10 am
1 stop7h 45m
Washington, D.C.Ontario
DCA - ONT
DCAONT
Washington, D.C. Reagan-National
Thu 11/20
6:00 am-11:06 am
1 stop8h 06m
Ontario
Tue 12/2
6:00 am-4:01 pm
1 stop7h 01m
Washington, D.C.Ontario
DCA - ONT
DCAONT
Washington, D.C. Reagan-National
Sun 12/7
6:21 pm-11:04 pm
1 stop7h 43m
Ontario
Wed 12/10
7:05 am-5:21 pm
1 stop7h 16m
Washington, D.C.Ontario
DCA - ONT
DCAONT
Washington, D.C. Reagan-National
Tue 1/13
8:00 am-3:08 pm
1 stop10h 08m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star |
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Ontario (average of $108). Flying from Washington, D.C. Reagan-National Airport to Ontario in November is currently the most expensive (average of $226). 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.
A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Reagan-National Airport to Ontario in the afternoon. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight in the evening.
Overall
Boarding
Food
Crew
Entertainment
Comfort
Reviews
Walter,Aug 2025
OAK - SAN
Overall
Boarding
Food
Crew
Entertainment
Comfort
Reviews
Walter,Aug 2025
OAK - SAN
Overall
Boarding
Food
Crew
Entertainment
Comfort
Reviews
Walter,Aug 2025
OAK - SAN
Overall
Boarding
Food
Crew
Entertainment
Comfort
Reviews
Walter,Aug 2025
OAK - SAN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$268 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$256 | Average$523 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$361 | Average$442 | FlexibilityNo cancel fee | On-time63% |