
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $226 (Frontier) |
One-way from | $65 (CheapOair) |
Popular in | November |
Cheapest in | September |
Average price | $488 |
Fly from
Fly to
Route
Depart
Return
Price
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Wed 2/4
7:00 am-4:59 pm
1 stop6h 59m
Washington, D.C. Reagan-National
Tue 3/3
9:59 am-10:44 pm
2 stops15h 45m
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Tue 11/25
12:58 am-4:57 pm
1 stop12h 59m
Washington, D.C. Reagan-National
Thu 11/27
6:00 pm-11:57 pm
1 stop8h 57m
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Sat 11/15
6:53 am-9:59 pm
1 stop12h 06m
Washington, D.C. Reagan-National
Mon 11/17
6:00 pm-11:50 pm
1 stop8h 50m
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Sat 12/6
6:40 am-3:27 pm
1 stop29h 47m
Washington, D.C. Reagan-National
Tue 12/16
4:55 pm-11:13 am
1 stop21h 18m
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Sat 12/6
6:40 am-3:27 pm
1 stop29h 47m
Washington, D.C. Reagan-National
Mon 12/15
4:55 pm-11:13 am
1 stop21h 18m
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Sat 11/15
12:05 pm-9:59 pm
1 stop6h 54m
Washington, D.C. Reagan-National
Fri 11/21
2:00 pm-6:53 pm
1 stop7h 53m
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Wed 12/24
12:45 pm-11:55 pm
1 stop8h 10m
Washington, D.C. Reagan-National
Wed 12/31
4:40 pm-10:05 pm
2 stops8h 25m
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Wed 2/4
7:30 am-10:35 pm
2 stops12h 05m
Washington, D.C. Reagan-National
Tue 3/3
12:59 pm-10:40 pm
2 stops12h 41m
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Wed 11/19
12:58 am-4:57 pm
1 stop12h 59m
Washington, D.C. Reagan-National
Fri 11/21
2:00 pm-11:57 pm
1 stop12h 57m
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Wed 12/10
12:45 pm-11:55 pm
1 stop8h 10m
Washington, D.C. Reagan-National
Wed 12/17
1:40 pm-7:15 pm
1 stop8h 35m
| 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 Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
Booking 15 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Washington, D.C. Reagan-National Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, June is the cheapest month in which you can book a flight from Ontario to Washington, D.C. Reagan-National Airport (average of $99). Flying from Ontario to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of $228). 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.
When flying from Ontario to Washington, D.C. Reagan-National Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 47% versus a flight at noon.
Travelers seeking maximum savings on their Ontario to Washington, D.C. Reagan-National Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Entertainment
Crew
Food
Comfort
Overall
Boarding
Reviews
Walter,Aug 2025
OAK - SAN
Entertainment
Crew
Food
Comfort
Overall
Boarding
Reviews
Walter,Aug 2025
OAK - SAN
Entertainment
Crew
Food
Comfort
Overall
Boarding
Reviews
Walter,Aug 2025
OAK - SAN
Entertainment
Crew
Food
Comfort
Overall
Boarding
Reviews
Walter,Aug 2025
OAK - SAN
Entertainment
Crew
Food
Comfort
Overall
Boarding
Reviews
Walter,Aug 2025
OAK - SAN
Entertainment
Crew
Food
Comfort
Overall
Boarding
Reviews
Walter,Aug 2025
OAK - SAN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$147 | Average$291 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$226 | Average$427 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$258 | Average$448 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$284 | Average$398 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$326 | Average$497 | FlexibilityNo cancel fee | On-time71% |