Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

Connect in the morning. The same one-hour layover misses 6% of the time at 12 pm and 36% of the time at 8 pm.

Nonstops (seasonal or thin)


United	DEN	DAY	2h 47m	75%	0.5%	365	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Dayton on time. Total trip = scheduled departure to arrival, layover included (Dayton is 2 h ahead of Denver). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	DEN 00:40 → ATL 05:42DL 302	3h 24m Atlanta	ATL 09:06 → DAY 10:38DL 3108	7h 58m	100%	86%
Delta Details →	DEN 05:45 → ATL 10:42DL 341	2h 53m Atlanta	ATL 13:35 → DAY 15:07DL 2763	7h 21m	99%	86%
United Details →	DEN 08:00 → ORD 11:44UA 2430	3h 16m Chicago	ORD 15:00 → DAY 17:30UA 5810 · flown by SkyWest	7h 30m	99%	79%
Delta Details →	DEN 14:15 → ATL 19:20DL 706	3h 00m Atlanta	ATL 22:20 → DAY 23:51DL 3167	7h 39m	98%	79%
United Details →	DEN 06:13 → IAD 11:41UA 1279	1h 03m Dulles	IAD 12:44 → DAY 14:18UA 4241 · flown by CommuteAir	6h 05m	94%	78%
United Details →	DEN 08:00 → IAD 13:26UA 1101	3h 49m Dulles	IAD 17:15 → DAY 19:01UA 4274 · flown by CommuteAir	9h 01m	100%	78%
United Details →	DEN 23:59 → IAD 05:27UA 1924	2h 48m Dulles	IAD 08:15 → DAY 09:48 +1UA 4188 · flown by GoJet	7h 49m	100%	78%
American Details →	DEN 05:00 → DFW 08:05AA 2612	1h 25m Dallas-Fort Worth	DFW 09:30 → DAY 13:04AA 5163 · flown by PSA	6h 04m	95%	76%
Tight connection: often missed
United Details →	DEN 16:29 → ORD 20:14UA 675	1h 06m Chicago	ORD 21:20 → DAY 23:49UA 4589 · flown by GoJet	5h 20m	64%	41%
American Details →	DEN 10:38 → DFW 13:40AA 1756	50m Dallas-Fort Worth	DFW 14:30 → DAY 18:02AA 5156 · flown by PSA	5h 24m	59%	39%
United Details →	DEN 13:25 → ORD 17:05UA 617	46m Chicago	ORD 17:51 → DAY 20:22UA 4484 · flown by GoJet	4h 57m	45%	25%

Same layover, different day-part

How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.

Morning

IAD · 1h 03m · leaves 06:13 6%

Afternoon and evening

CLT · 1h 07m · leaves 13:56 19%

ORD · 46m · leaves 13:25 55%

Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.

Mixing airlines

One ticketMiss it and the airline rebooks you; bags go through. 45 min is enough.

Separate ticketsMiss it and you buy a new ticket. Re-check bags, clear security again: we require 90 min.


Frontier F9 3294 DEN 06:30 → ATL Delta DL 2763 ATL 13:35 → DAY Connection details →	1h 57m	6h 36m	91%	80%
United UA 1671 DEN 13:26 → ATL Delta DL 3167 ATL 22:20 → DAY Connection details →	3h 50m	8h 28m	99%	80%
United UA 1377 DEN 06:00 → ORD American AA 5008 ORD 13:10 → DAY Connection details →	3h 28m	7h 35m	98%	75%

Rank all connections, any airlines →

Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.

How these are worked out. Makes the connection: share of the last year’s flights where the first flight arrived with at least 45 minutes to spare (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled and arriving within 15 minutes. Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON