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ATIS Alerts Smart Flight Search

Find the flight least likely to be delayed

Beta

We rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.

HHH → DCA

Hilton Head Island to Washington: 343 nonstop flights a year

On time (12 months)

80%

Cancelled

2.6%

avg delay 17 min

Best time to leave

9 AM to noon

87% on time vs 70% 3 to 6 PM

Most reliable airline

Envoy

85% chance on time

Check HHH to DCA fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Best trips

3 nonstop, 12 with 1 connection. Best overall weighs the chance you arrive on time as booked, connection odds, travel time and separate tickets.

  1. Best overall#1 · Nonstop · 1h 47m

    10:57 AM → 12:44 PM

    87%

    arrive on time

    10:57 AM HHH → 12:44 PM DCA1h 47m

    Envoy 3564 · sold as American Eagle

    Embraer E175 · 2–11 yrs old
    88% on time · 1.6% cancel
    Find 10:57 AM flight fares Opens this date on Aviasales

  2. #2 · Nonstop · 1h 51m

    3:44 PM → 5:35 PM

    76%

    arrive on time

    3:44 PM HHH → 5:35 PM DCA1h 51m

    Republic 4450 · sold as American Eagle, Delta Connection or United Express

    Embraer E175 · 12–19 yrs old
    78% on time · 2.5% cancel
    Find 3:44 PM flight fares Opens this date on Aviasales

  3. #3 · Nonstop · 1h 48m

    4:11 PM → 5:59 PM

    66%

    arrive on time

    4:11 PM HHH → 5:59 PM DCA1h 48m

    Republic 4604 · sold as American Eagle, Delta Connection or United Express

    Embraer E175 · 12–19 yrs old
    68% on time · 3.9% cancel
    Find 4:11 PM flight fares Opens this date on Aviasales

  4. #4 · 1 connection · 5h 07m · one ticket (American)

    11:40 AM → 4:47 PM

    93%

    connections made

    64%

    arrive on time

    11:40 AM HHH → 12:59 PM CLT1h 19m

    Envoy 3563 · sold as American Eagle

    Embraer E175 · 7–11 yrs old
    90% on time · 1.9% cancel
    Connect in CLT · 2h 09m · 97% chance to make it · same ticket: the airline rebooks you if you miss it

    3:08 PM CLT → 4:47 PM DCA1h 39m

    American 1659

    Airbus A319 · 20–27 yrs old
    69% on time · 2.6% cancel
    Find this American trip Look for Envoy 3563 + American 1659 on Aviasales

  5. #5 · 1 connection · 5h 15m · one ticket (American)

    6:39 PM → 11:54 PM

    93%

    connections made

    64%

    arrive on time

    6:39 PM HHH → 8:04 PM CLT1h 25m

    Envoy 3637 · sold as American Eagle

    Embraer E175 · 5–11 yrs old
    89% on time · 1.7% cancel
    Connect in CLT · 2h 25m · 98% chance to make it · same ticket: the airline rebooks you if you miss it

    10:29 PM CLT → 11:54 PM DCA1h 25m

    American 1269 · also flew as 3114

    Airbus A319 or A320 · 21–28 yrs old
    69% on time · 3.6% cancel
    Find this American trip Look for Envoy 3637 + American 1269 on Aviasales

  6. #6 · 1 connection · 5h 11m · one ticket (American)

    5:04 PM → 10:15 PM

    94%

    connections made

    64%

    arrive on time

    5:04 PM HHH → 6:28 PM CLT1h 24m

    Envoy 4128 · sold as American Eagle

    Embraer E175 · 2–11 yrs old
    89% on time · 1.6% cancel
    Connect in CLT · 2h 16m · 97% chance to make it · same ticket: the airline rebooks you if you miss it

    8:44 PM CLT → 10:15 PM DCA1h 31m

    American 1354

    Airbus A319 · 25–28 yrs old
    68% on time · 2.1% cancel
    Find this American trip Look for Envoy 4128 + American 1354 on Aviasales

  7. #7 · 1 connection · 5h 44m · one ticket (American)

    11:03 AM → 4:47 PM

    95%

    connections made

    65%

    arrive on time

    11:03 AM HHH → 12:25 PM CLT1h 22m

    Envoy 3642 · sold as American Eagle · also flew as 3865

    Embraer E175 · 3–11 yrs old
    93% on time · 1.9% cancel
    Connect in CLT · 2h 43m · 99% chance to make it · same ticket: the airline rebooks you if you miss it

    3:08 PM CLT → 4:47 PM DCA1h 39m

    American 1659

    Airbus A319 · 20–27 yrs old
    69% on time · 2.6% cancel
    Find this American trip Look for Envoy 3642 + American 1659 on Aviasales

  8. #8 · 1 connection · 5h 39m · one ticket (American)

    6:15 PM → 11:54 PM

    93%

    connections made

    65%

    arrive on time

    6:15 PM HHH → 7:40 PM CLT1h 25m

    Envoy 3662 · sold as American Eagle

    Embraer E175 · 5–11 yrs old
    85% on time · 2.3% cancel
    Connect in CLT · 2h 49m · 99% chance to make it · same ticket: the airline rebooks you if you miss it

    10:29 PM CLT → 11:54 PM DCA1h 25m

    American 1269 · also flew as 3114

    Airbus A319 or A320 · 21–28 yrs old
    69% on time · 3.6% cancel
    Find this American trip Look for Envoy 3662 + American 1269 on Aviasales

  9. #9 · 1 connection · 5h 02m · one ticket (American)

    2:58 PM → 8:00 PM

    92%

    connections made

    62%

    arrive on time

    2:58 PM HHH → 4:20 PM CLT1h 22m

    Envoy 3643 · sold as American Eagle · also flew as 3700

    Embraer E175 · 2–11 yrs old
    87% on time · 2.9% cancel
    Connect in CLT · 2h 05m · 97% chance to make it · same ticket: the airline rebooks you if you miss it

    6:25 PM CLT → 8:00 PM DCA1h 35m

    American 2386 · also flew as 2333

    Airbus A320 · 16–28 yrs old
    67% on time · 2.0% cancel
    Find this American trip Look for Envoy 3643 + American 2386 on Aviasales

  10. #10 · 1 connection · 5h 17m · one ticket (American)

    2:43 PM → 8:00 PM

    93%

    connections made

    62%

    arrive on time

    2:43 PM HHH → 4:04 PM CLT1h 21m

    Envoy 3562 · sold as American Eagle

    Embraer E175 · 4–11 yrs old
    78% on time · 1.9% cancel
    Connect in CLT · 2h 21m · 96% chance to make it · same ticket: the airline rebooks you if you miss it

    6:25 PM CLT → 8:00 PM DCA1h 35m

    American 2386 · also flew as 2333

    Airbus A320 · 16–28 yrs old
    67% on time · 2.0% cancel
    Find this American trip Look for Envoy 3562 + American 2386 on Aviasales

Aircraft and ages come from the planes each flight number actually flew in the last 3 months of data (FAA registry build years); airlines can swap planes.

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Envoy Air (sold as American Eagle)85%

    130 flights · 90% on time as flown · 1.8% cancel

  • Republic Airways (sold as American Eagle, Delta Connection or United Express)74%

    213 flights · 74% on time as flown · 3.3% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • 9 AM to noon87%

    206 flights · avg delay 11 min

  • 3 to 6 PM70%

    120 flights · avg delay 25 min

Best day: Tuesday (93%). Worst: Saturday (80%).

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure