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Reliable Flight Search

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The insider way to pick a flight: on-time records, the odds each connection is made, legroom and the age of the planes that actually fly the route. Things airline sites and the big booking sites don’t show you. US airlines and airports.

Find me the most reliable flights fromtoonreturning(optional)

DCA → VPS

Washington to Valparaiso: 384 nonstop flights a year

On time (12 months)

74%

Cancelled

5.7%

avg delay 20 min

Best time to leave

Before 9 AM

83% on time vs 54% 6 to 9 PM

Most reliable airline

American

73% chance on time

Check DCA to VPS fares

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

Best trips

2 nonstop, 38 with 1 connection · ranked by overall best · published legroom for 40 of 40

  1. Top pick#1 · Nonstop · 2h 40m

    8:20 AM → 10:00 AM

    90

    score

    price

    live on Aviasales

    77%

    arrive on time

    8:20 AM DCA → 10:00 AM VPS2h 40m

    PSA 5672 · sold as American Eagle

    Bombardier CRJ900 · 7–12 yrs oldLegroom 31 in · 16.6–17.3 in wide · Main Cabin
    81% on time · 5.5% cancel
    Find 8:20 AM flight fares Opens this date on Aviasales
  2. #2 · 1 connection · 4h 45m · one ticket (Southwest)

    6:00 AM → 9:45 AM

    84

    score

    price

    live on Aviasales

    92%

    connections made

    86%

    arrive on time

    6:00 AM DCA → 6:55 AM BNA1h 55m

    Southwest 2314

    Boeing 737-700 · 12–23 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)
    95% on time · 1.4% cancel
    Connect in BNA · 1h 20m · 94% chance to make it · same ticket: the airline rebooks you if you miss it

    8:15 AM BNA → 9:45 AM VPS1h 30m

    Southwest 1092

    Boeing 737-700 · 5–23 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)
    93% on time · 0.2% cancel
    Find this Southwest trip Look for Southwest 2314 + Southwest 1092 on Aviasales
  3. #3 · 1 connection · 4h 20m · one ticket (Southwest)

    6:00 AM → 9:20 AM

    71

    score

    price

    live on Aviasales

    86%

    connections made

    77%

    arrive on time

    6:00 AM DCA → 6:55 AM BNA1h 55m

    Southwest 2314

    Boeing 737-700 · 12–23 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)
    95% on time · 1.4% cancel
    Connect in BNA · 55m · 88% chance to make it · same ticket: the airline rebooks you if you miss it

    7:50 AM BNA → 9:20 AM VPS1h 30m

    Southwest 1204

    Boeing 737-700 or 737 MAX 8 · 2–22 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)
    89% on time · 0.2% cancel
    Find this Southwest trip Look for Southwest 2314 + Southwest 1204 on Aviasales
  4. #4 · 1 connection · 5h 19m · one ticket (Delta)

    6:00 AM → 10:22 AM

    65

    score

    price

    live on Aviasales

    94%

    connections made

    83%

    arrive on time

    6:00 AM DCA → 7:57 AM ATL1h 54m

    Delta 410

    Airbus A320 or A319 · 23–34 yrs oldLegroom 30–31 in · 18 in wide · Delta Main
    94% on time · 3.4% cancel
    Connect in ATL · 2h 08m · 98% chance to make it · same ticket: the airline rebooks you if you miss it

    10:05 AM ATL → 10:22 AM VPS1h 17m

    Delta 2048

    Boeing 717 · 22–27 yrs oldLegroom 30–31 in · 18.1 in wide · Delta Main
    88% on time · 1.5% cancel
    Find this Delta trip Look for Delta 410 + Delta 2048 on Aviasales
  5. #5 · 1 connection · 6h 55m · one ticket (Southwest)

    9:25 AM → 3:20 PM

    61

    score

    price

    live on Aviasales

    98%

    connections made

    78%

    arrive on time

    9:25 AM DCA → 10:15 AM BNA1h 50m

    Southwest 2720

    Boeing 737-700 · 10–23 yrs oldLegroom 31–36 in · 15.5–17.8 in wide · Economy (all seating types)
    70% on time · 1.4% cancel
    Connect in BNA · 3h 35m · 99% chance to make it · same ticket: the airline rebooks you if you miss it

    1:50 PM BNA → 3:20 PM VPS1h 30m

    Southwest 470

    Boeing 737-700 · 18–22 yrs oldLegroom 31–36 in · 15.5–17 in wide · Economy (all seating types)
    80% on time · 0.2% cancel
    Find this Southwest trip Look for Southwest 2720 + Southwest 470 on Aviasales
  6. #6 · 1 connection · 4h 23m · one ticket (Delta)

    6:59 AM → 10:22 AM

    60

    score

    price

    live on Aviasales

    87%

    connections made

    77%

    arrive on time

    6:59 AM DCA → 8:59 AM ATL2h 00m

    Delta 330

    Airbus A320 or A319 · 24–34 yrs oldLegroom 30–31 in · 18 in wide · Delta Main
    90% on time · 2.6% cancel
    Connect in ATL · 1h 06m · 91% chance to make it · same ticket: the airline rebooks you if you miss it

    10:05 AM ATL → 10:22 AM VPS1h 17m

    Delta 2048

    Boeing 717 · 22–27 yrs oldLegroom 30–31 in · 18.1 in wide · Delta Main
    88% on time · 1.5% cancel
    Find this Delta trip Look for Delta 330 + Delta 2048 on Aviasales
  7. #7 · 1 connection · 5h 22m · one ticket (Delta)

    6:00 AM → 10:22 AM

    60

    score

    price

    live on Aviasales

    89%

    connections made

    79%

    arrive on time

    6:00 AM DCA → 8:05 AM ATL2h 05m

    Republic 4782 · sold as Delta Connection

    Embraer E175 · 12–19 yrs oldLegroom 30–31 in · 18.3 in wide · Delta Main
    89% on time · 3.8% cancel
    Connect in ATL · 2h 00m · 94% chance to make it · same ticket: the airline rebooks you if you miss it

    10:05 AM ATL → 10:22 AM VPS1h 17m

    Delta 2048

    Boeing 717 · 22–27 yrs oldLegroom 30–31 in · 18.1 in wide · Delta Main
    88% on time · 1.5% cancel
    Find this Delta trip Look for Republic 4782 + Delta 2048 on Aviasales
  8. #8 · 1 connection · 6h 28m · one ticket (Delta)

    6:59 AM → 12:27 PM

    57

    score

    price

    live on Aviasales

    96%

    connections made

    81%

    arrive on time

    6:59 AM DCA → 8:59 AM ATL2h 00m

    Delta 330

    Airbus A320 or A319 · 24–34 yrs oldLegroom 30–31 in · 18 in wide · Delta Main
    90% on time · 2.6% cancel
    Connect in ATL · 3h 16m · 99% chance to make it · same ticket: the airline rebooks you if you miss it

    12:15 PM ATL → 12:27 PM VPS1h 12m

    Delta 3092

    Boeing 717 or 737-900ER · 13–26 yrs oldLegroom 30–32 in · 17.3–18.1 in wide · Delta Main
    85% on time · 0.9% cancel
    Find this Delta trip Look for Delta 330 + Delta 3092 on Aviasales
  9. #9 · 1 connection · 5h 31m · one ticket (Delta)

    7:59 AM → 12:27 PM

    57

    score

    price

    live on Aviasales

    91%

    connections made

    77%

    arrive on time

    7:59 AM DCA → 9:53 AM ATL1h 57m

    Delta 343

    Airbus A320 or A321 · 7–33 yrs oldLegroom 30–31 in · 18 in wide · Delta Main
    85% on time · 3.2% cancel
    Connect in ATL · 2h 22m · 94% chance to make it · same ticket: the airline rebooks you if you miss it

    12:15 PM ATL → 12:27 PM VPS1h 12m

    Delta 3092

    Boeing 717 or 737-900ER · 13–26 yrs oldLegroom 30–32 in · 17.3–18.1 in wide · Delta Main
    85% on time · 0.9% cancel
    Find this Delta trip Look for Delta 343 + Delta 3092 on Aviasales
  10. #10 · 1 connection · 6h 36m · one ticket (American)

    6:23 AM → 11:59 AM

    57

    score

    price

    live on Aviasales

    94%

    connections made

    78%

    arrive on time

    6:23 AM DCA → 8:04 AM CLT1h 41m

    American 1581

    Airbus A320 · 16–27 yrs oldLegroom 31–32 in · 16.5–18 in wide · Main Cabin
    89% on time · 3.4% cancel
    Connect in CLT · 3h 12m · 97% chance to make it · same ticket: the airline rebooks you if you miss it

    11:16 AM CLT → 11:59 AM VPS1h 43m

    American 2671

    Airbus A320 · 26–27 yrs oldLegroom 31–32 in · 16.5–18 in wide · Main Cabin
    84% on time · 0.5% cancel
    Find this American trip Look for American 1581 + American 2671 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. Legroom is the seat pitch the airline or a seat-map source publishes for that aircraft and cabin; we never estimate it, and seat maps change, so check the airline’s seat map when you book.

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • American Airlines73%

    120 flights · 78% on time as flown · 3.6% cancel

  • PSA Airlines (sold as American Eagle)66%

    223 flights · 70% on time as flown · 7.1% cancel

On time by departure time

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

  • Before 9 AM83%

    265 flights · avg delay 13 min

  • 6 to 9 PM54%

    91 flights · avg delay 42 min

Best day: Saturday (81%). Worst: Thursday (70%).

Smarter routing

Nearby airports that run more on time

  • DCA → ECP 72% chance on time

    Ronald Reagan Washington National Airport to Northwest Florida Beaches International Airport · 382 flights a year · 44 mi from your airports · yours: 70%

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