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

IAD Airport Page →
airlines 0/wk
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Flight Schedule 0 flights
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  Flight Airline AC Dep Arr Dur OTP Sched  

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP
✧ 2-STOP Loading...
Dulles to Ontario
Connecting service available through multiple hubs.
-3h behind 40 1-stop hubs

While no nonstop service exists between IAD and ONT, connecting options are available through 40 hubs.

Also explore IAD Routes ONT Routes IAD Live Flights ONT Live Flights IAD Delays ONT Delays
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for IAD to ONT.
1-STOP
One-Stop Connections
40
Hubs
~6h
Fastest
~31h
Longest
BUR ~6h 42m SDF ~6h 49m VNY ~6h 52m MEM ~6h 52m CVG ~7h 0m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
1,713
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.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
IAD → ONT
62%
Moderate delays possible. Allow buffer time.
Departing
62%
Arriving
63%
Return
ONT → IAD
84%
Generally reliable. Most flights run on time.
Departing
84%
Arriving
74%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. IAD delays → ONT delays →
Alternatives

Other ways to reach Ontario from Dulles

Nearby airports with service to Ontario International Airport.
Metric IAD→ONT BWI→ONT
Distance from IAD – 45 mi
Nonstop airlines 0 1
Weekly flights 0 14
Departure OTP 62% –
Baltimore (BWI) to Ontario flights
Airports within 200 miles of IAD with service to Ontario International Airport.
Know before you go

Travel Essentials

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

When it's 6:00 PM in Dulles, it's 3:00 PM in Ontario.
Getting to IAD

WMATA Silver Line Metro now reaches Dulles directly; take Silver Line to Washington Dulles Airport station (about 65 min from Metro Center, ~$7). The connection opened in late 2022.Ride-shares from downtown DC run $35–60 and take 35–50 minutes via I-66 (longer during peak hours). Washington Flyer coach to Wiehle-Reston East Metro costs $6. The airport is 27 miles from downtown; taxis are expensive ($60–80).

Facts

IAD–ONT Quick Facts

Key statistics for the Dulles to Ontario route.
Route details
Time difference-3 hours
Airlines (nonstop)0
1-stop connections40 hubs
Origin: IAD
Full nameWashington Dulles International Airport
IATA / ICAOIAD / KIAD
TimezoneAmerica/New_York
Passengers/yr26.0M
Elevation312 ft / 95 m
Destination: ONT
Full nameOntario International Airport
IATA / ICAOONT / KONT
TimezoneAmerica/Los_Angeles
Passengers/yr7.0M
Elevation944 ft / 288 m
FAQ

Frequently Asked Questions

Common questions about IAD to ONT flights.
Yes, 1-stop connections are available through BUR, SDF, VNY, MEM, CVG, COS, AFW, IND, MDW, BWI, HOU, DAL, SJC, PHL, GSO, PRC, EWR, LAL, FLL, MIA, SLC, BNA, ATL, YUL, KOA, ORD, DFW, LAS, DEN, OAK, SFO, PHX, IAH, AUS, SMF, PDX, SEA, CLT, STS and HNL. These options provide additional schedule flexibility.
Ontario is 3 hours behind Dulles.
Nearby alternatives include BWI. 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

40 one-stop connections are available, with the fastest taking approximately 6 hours via BUR. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Baltimore (BWI).