Reliable Flight Search
BetaThe 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.
IAD → JAX
Dulles to Jacksonville: 763 nonstop flights a year
On time (12 months)
83%
Cancelled
1.3%
avg delay 14 min
Best time to leave
Before 9 AM
89% on time vs 61% 6 to 9 PM
Most reliable airline
United
86% chance on time
Lowest nonstop fare seen in the next two months: $157 (United 2084 on 2026-10-20). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Best trips
3 nonstop, 28 with 1 connection · ranked by overall best · published legroom for 31 of 31
Fares seen on this date: nonstop from 157 · any route from 154 (recent searches, one way, per person; each card opens the live price)
Top pick#1 · Nonstop · 2h 10m
8:59 AM → 11:09 AM
93
score
price
live on Aviasales
88%
arrive on time
89% on time · 1.0% cancel8:59 AM IAD → 11:09 AM JAX2h 10m
United 2084
Boeing 737 MAX 9 · 0–17 yrs oldLegroom 30–31 in · 16.3–17.8 in wide · United EconomyFind United 2084 fares Opens this date on Aviasales#2 · Nonstop · 2h 12m
5:50 PM → 8:02 PM
80
score
price
live on Aviasales
84%
arrive on time
84% on time · 0.5% cancel5:50 PM IAD → 8:02 PM JAX2h 12m
United 293
Boeing 737-900ER · 11–22 yrs oldLegroom 30–31 in · 16.3–17.8 in wide · United EconomyFind United 293 fares Opens this date on Aviasales#3 · Nonstop · 2h 15m
1:10 PM → 3:25 PM
74
score
price
live on Aviasales
85%
arrive on time
86% on time · 0.7% cancel1:10 PM IAD → 3:25 PM JAX2h 15m
United 1262
Boeing 737-700 · 24–28 yrs oldLegroom 30 in · 16.1–17.7 in wide · United EconomyFind United 1262 fares Opens this date on Aviasales#4 · 1 connection · 4h 24m · one ticket (American)
8:15 AM → 12:39 PM
60
score
price
live on Aviasales
90%
connections made
75%
arrive on time
85% on time · 2.4% cancel8:15 AM IAD → 9:53 AM CLT1h 38m
Republic 3656 · sold as American Eagle
Embraer E175 · 2–11 yrs oldLegroom 30 in · 18.2–19.3 in wide · Main CabinConnect in CLT · 1h 19m · 93% chance to make it · same ticket: the airline rebooks you if you miss it84% on time · 1.1% cancel11:12 AM CLT → 12:39 PM JAX1h 27m
American 2203
Airbus A321 · 9–25 yrs oldLegroom 30–32 in · 16.3–18.7 in wide · Main CabinFind this American trip Look for Republic 3656 + American 2203 on Aviasales#5 · 1 connection · 4h 47m · one ticket (Delta)
7:18 AM → 12:05 PM
59
score
price
live on Aviasales
87%
connections made
74%
arrive on time
81% on time · 2.6% cancel7:18 AM IAD → 9:22 AM ATL2h 00m
Delta 1354
Airbus A220-300 · 1–24 yrs oldLegroom 30–32 in · 17.3–18.6 in wide · Delta MainConnect in ATL · 1h 38m · 91% chance to make it · same ticket: the airline rebooks you if you miss it85% on time · 2.4% cancel11:00 AM ATL → 12:05 PM JAX1h 09m
Delta 2923
Airbus A321 or Boeing 757-200 · 8–27 yrs oldLegroom 30–33 in · 17.2–18 in wide · Delta MainFind this Delta trip Look for Delta 1354 + Delta 2923 on Aviasales#6 · 1 connection · 5h 35m · one ticket (American)
9:20 AM → 2:55 PM
57
score
price
live on Aviasales
95%
connections made
76%
arrive on time
93% on time · 2.6% cancel9:20 AM IAD → 10:56 AM CLT1h 36m
PSA 5219 · sold as American Eagle · also flew as 5266
Bombardier CRJ900 · 7–23 yrs oldLegroom 31 in · 16.6–17.3 in wide · Main CabinConnect in CLT · 2h 35m · 98% chance to make it · same ticket: the airline rebooks you if you miss it81% on time · 1.1% cancel1:31 PM CLT → 2:55 PM JAX1h 24m
American 2220
Airbus A321 · 10–18 yrs oldLegroom 30–32 in · 16.3–18.7 in wide · Main CabinFind this American trip Look for PSA 5219 + American 2220 on Aviasales#7 · 1 connection · 4h 47m · one ticket (American)
12:35 PM → 5:22 PM
55
score
price
live on Aviasales
92%
connections made
73%
arrive on time
85% on time · 2.5% cancel12:35 PM IAD → 2:08 PM CLT1h 33m
Republic 3701 · sold as American Eagle
Embraer E175 · 1–9 yrs oldLegroom 30 in · 18.2–19.3 in wide · Main CabinConnect in CLT · 1h 50m · 96% chance to make it · same ticket: the airline rebooks you if you miss it79% on time · 1.1% cancel3:58 PM CLT → 5:22 PM JAX1h 24m
American 2214
Airbus A321 · 10–25 yrs oldLegroom 30–31 in · 16.3–18.7 in wide · Main CabinFind this American trip Look for Republic 3701 + American 2214 on Aviasales#8 · 1 connection · 6h 40m · one ticket (American)
8:15 AM → 2:55 PM
54
score
price
live on Aviasales
96%
connections made
77%
arrive on time
85% on time · 2.4% cancel8:15 AM IAD → 9:53 AM CLT1h 38m
Republic 3656 · sold as American Eagle
Embraer E175 · 2–11 yrs oldLegroom 30 in · 18.2–19.3 in wide · Main CabinConnect in CLT · 3h 38m · 99% chance to make it · same ticket: the airline rebooks you if you miss it81% on time · 1.1% cancel1:31 PM CLT → 2:55 PM JAX1h 24m
American 2220
Airbus A321 · 10–18 yrs oldLegroom 30–32 in · 16.3–18.7 in wide · Main CabinFind this American trip Look for Republic 3656 + American 2220 on Aviasales#9 · 1 connection · 6h 19m · one ticket (American)
6:20 AM → 12:39 PM
52
score
price
live on Aviasales
97%
connections made
81%
arrive on time
90% on time · 1.3% cancel6:20 AM IAD → 7:47 AM CLT1h 27m
American 1216 · also flew as 2457
Airbus A319 · 11–27 yrs oldLegroom 30–32 in · 16.5–18.7 in wide · Main CabinConnect in CLT · 3h 25m · 99% chance to make it · same ticket: the airline rebooks you if you miss it84% on time · 1.1% cancel11:12 AM CLT → 12:39 PM JAX1h 27m
American 2203
Airbus A321 · 9–25 yrs oldLegroom 30–32 in · 16.3–18.7 in wide · Main CabinFind this American trip Look for American 1216 + American 2203 on Aviasales#10 · 1 connection · 4h 39m · one ticket (American)
8:15 AM → 12:54 PM
52
score
price
live on Aviasales
92%
connections made
70%
arrive on time
85% on time · 2.4% cancel8:15 AM IAD → 9:53 AM CLT1h 38m
Republic 3656 · sold as American Eagle
Embraer E175 · 2–11 yrs oldLegroom 30 in · 18.2–19.3 in wide · Main CabinConnect in CLT · 1h 33m · 96% chance to make it · same ticket: the airline rebooks you if you miss it76% on time · 1.3% cancel11:26 AM CLT → 12:54 PM JAX1h 28m
American 2001
Boeing 737-800 · 12–16 yrs oldLegroom 30–31 in · 16.3–18.7 in wide · Main CabinFind this American trip Look for Republic 3656 + American 2001 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.
- United Airlines86%
575 flights · 87% on time as flown · 0.8% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM89%
203 flights · avg delay 9 min
- 9 AM to noon87%
93 flights · avg delay 7 min
- 3 to 6 PM83%
375 flights · avg delay 16 min
- 6 to 9 PM61%
66 flights · avg delay 33 min
Best day: Wednesday (85%). Worst: Friday (75%).
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