IAD to SAV flight delays & on-time performance
Nonstop flights from Washington Dulles International Airport to Savannah Hilton Head International Airport · 516 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at IAD or SAV right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Washington (IAD) to Savannah (SAV) arrived on time 89% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1% were cancelled, and 4% arrived an hour or more late.
- Republic Airways was the most punctual airline here (96% on time); Allegiant Air was the least (76%).
- Departures scheduled around 8am did best (94% on time); around 9am did worst (91%).
- Tuesday was the most reliable day to fly (100% on time) and Thursday the least (76%).
- The largest source of delay minutes was late-arriving aircraft (77%).
Which airline is most on time from IAD to SAV?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 96% | 0.0% | 1 min | 0.0% | 51 |
| United Airlines | 92% | 1.0% | 6 min | 3.9% | 104 |
| Allegiant Air | 76% | 2.0% | 47 min | 10.2% | 50 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am94%53 flights
- 9am91%75 flights
- 11am92%13 flights
- 8pm86%14 flights
- 10pm94%32 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday92%0.0% cancelled
- Tuesday100%0.0% cancelled
- Wednesday95%0.0% cancelled
- Thursday76%2.1% cancelled
- Friday92%0.0% cancelled
- Saturday95%0.0% cancelled
- Sunday89%2.2% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft77%
- Airline (crew, maintenance, cleaning, fueling)15%
- Air traffic control & airport congestion8%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather50%
- Air traffic control & airport congestion50%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
IAD to SAV: common questions
- How often are IAD to SAV flights on time?
- 89% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Washington to Savannah cancelled?
- 1.0% of scheduled flights were cancelled (2 of 205).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 134 min behind schedule on average, and 4.4% of flights were an hour or more late.
- How long is taxi time at IAD?
- Flights on this route spent 19 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SAV to IAD — 91% on time
More flights from Washington
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: IAD → SAV, nonstop flights by US airlines that report to the DOT. How we calculate this.