Ontario to Dulles (ONT–IAD) — Airlines, Schedules & Connections

ONT Airport Page →
airlines charter/private
On-time Some delays Frequent delays
Connecting Flight Schedule 21 1-stop flights
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
DEN Denver 6h 23m ACF9UA AVAZCM Denver (DEN) to Dulles flights
LAS Las Vegas 6h 35m F9WNY4 ETF9OS Las Vegas (LAS) to Dulles flights
ATL Atlanta 6h 42m AFAMDL AFAMCM Atlanta (ATL) to Dulles flights
DFW Dallas-Fort Worth 7h AABAF9 AAASAT Dallas-Fort Worth (DFW) to Dulles flights
SLC Salt Lake City 7h 3m AFAMDL DLKEUA Salt Lake City (SLC) to Dulles flights
PHX Phoenix 7h 7m AAPDWN AVOSSN Phoenix (PHX) to Dulles flights
BNA Nashville 7h 8m WN AVAZCM Nashville (BNA) to Dulles flights
IAH Houston 7h 20m F9UAY4 AVAZCA Houston (IAH) to Dulles flights
ORD Chicago 7h 35m UA ACAVAZ Chicago (ORD) to Dulles flights
SFO San Francisco 7h 50m ACCMF9 AZNZOS San Francisco (SFO) to Dulles flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
Ontario to Dulles
Connecting service available through multiple hubs.
+3h ahead

While no nonstop service exists between ONT and IAD, 1-stop connecting options are available.

Connection Landscape

1-stop and 2-stop options for ONT to IAD.
1-STOP
One-Stop Connections
21
Hubs
~6h
Fastest
~41h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
1,501
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
ONT → IAD
63%
Moderate delays possible. Allow buffer time.
Departing
63%
Arriving
82%
Return
IAD → ONT
79%
Generally reliable. Most flights run on time.
Departing
79%
Arriving
82%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. ONT delays → IAD delays →

Other ways to reach Dulles from Ontario

Nearby airports with service to Washington Dulles International Airport.
Metric ONT→IAD SNA→IAD LGB→IAD
Distance from ONT 30 mi 36 mi
Nonstop airlines 11 3
Weekly flights 16
Departure OTP 63%
Airports within 200 miles of ONT with service to Washington Dulles International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
+3h
Dulles is 3 hours ahead of Ontario.
ONT: PDT · IAD: EDT

When it's 6:00 PM in Ontario, it's 9:00 PM in Dulles.
Getting from IAD

Silver Line Metro runs from Washington Dulles Airport station to Metro Center in about 65 minutes (~$7). The route bypasses I-66 and I-495 congestion entirely. Washington Flyer coach also runs to Wiehle-Reston East station ($6, 15 min) for Metro connection.Taxis and ride-shares to downtown DC cost $55–80 and take 35–55 minutes depending on traffic. Car rental facilities are on-site. Dulles is 27 miles west of the Capitol; it is farther than either DCA or BWI from central DC.

Dulles Climate

Humid continental climate. Summers are hot and muggy (30–36°C) with frequent afternoon thunderstorms that cause delays June through August. Winters bring cold temperatures (−3 to 5°C) with snow and ice. The Virginia suburbs accumulate more snow than downtown DC, and ice storms are the primary disruption risk.

Dulles sits at higher elevation in Virginia's piedmont and sees more winter precipitation than DCA. Spring and fall are variable. Snowfall is possible into April. Thunderstorms begin from April through May.

ONT–IAD Quick Facts

Key statistics for the Ontario to Dulles route.
Route details
Time difference+3 hours
Airlines (nonstop)0
1-stop connectionsAvailable
Origin: ONT
IATA / ICAOONT / KONT
TimezoneAmerica/Los_Angeles
Passengers/yr7.0M
Elevation944 ft / 288 m
Destination: IAD
IATA / ICAOIAD / KIAD
TimezoneAmerica/New_York
Passengers/yr26.0M
Elevation312 ft / 95 m

Frequently Asked Questions

Common questions about ONT to IAD flights.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Denver, Harry Reid and Hartsfield Jackson Atlanta.
On a single ticket, yes. Your bags are checked through to IAD and move between planes without you. On two separate tickets you collect your bags at the connecting airport and recheck them, so build in extra layover time.
Dulles is 3 hours ahead of Ontario.
Yes, return flights from IAD to ONT are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include SNA, LGB and HHR. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Denver, Harry Reid and Hartsfield Jackson Atlanta. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Santa Ana (SNA), Long Beach (LGB) and Hawthorne (HHR).