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 50-minute layover misses 1 time in 10 at 7 am and 3 times in 4 at 7 pm.

Nonstops


United	LGA	DEN	4h 34m	79%	2.1%	2,020	Flying now
Delta	LGA	DEN	4h 24m	73%	4.3%	1,032	Flying now
Southwest	LGA	DEN	4h 30m	63%	3.5%	1,494	Flying now
Frontier	LGA	DEN	4h 20m	70%	3.3%	121	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	LGA 06:10 → ORD 07:49UA 2389	3h 05m Chicago	ORD 10:54 → DEN 12:45UA 581	8h 35m	100%	94%
United Details →	LGA 06:00 → IAD 07:26UA 3656 · flown by Republic	2h 47m Dulles	IAD 10:13 → DEN 12:05UA 1865	8h 05m	99%	87%
Delta Details →	LGA 06:59 → ATL 09:20DL 342	3h 30m Atlanta	ATL 12:50 → DEN 14:04DL 957	9h 05m	99%	85%
United Details →	LGA 07:29 → IAH 10:13UA 1957	2h 20m Houston	IAH 12:33 → DEN 14:17UA 2168	8h 48m	97%	84%
Delta Details →	LGA 06:00 → ATL 08:15DL 550	3h 30m Atlanta	ATL 11:45 → DEN 12:59DL 706	8h 59m	99%	82%
United Details →	LGA 08:05 → ORD 09:44UA 623	3h 12m Chicago	ORD 12:56 → DEN 14:46UA 1150	8h 41m	98%	82%
United Details →	LGA 15:38 → IAH 18:46UA 1794	3h 24m Houston	IAH 22:10 → DEN 23:57UA 1066	10h 19m	93%	81%
American Details →	LGA 06:30 → ORD 08:14AA 462	1h 46m Chicago	ORD 10:00 → DEN 11:44AA 1744	7h 14m	98%	81%
Tight connection: often missed
United Details →	LGA 19:28 → IAD 20:55UA 6244 · flown by Mesa	1h 28m Dulles	IAD 22:23 → DEN 00:30 +1UA 495	7h 02m	73%	53%
United Details →	LGA 14:51 → IAD 16:35UA 3688 · flown by Republic	1h 06m Dulles	IAD 17:41 → DEN 19:45UA 599	6h 54m	67%	46%
American Details →	LGA 18:15 → CLT 20:31AA 1942	54m Charlotte	CLT 21:25 → DEN 23:01AA 3156	6h 44m	59%	31%

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

DAL · 1h 10m · leaves 06:05 4%

ATL · 1h 16m · leaves 08:00 5%

DTW · 1h 17m · leaves 09:25 6%

Afternoon and evening

CLT · 54m · leaves 18:15 41%

DFW · 55m · leaves 18:47 46%

ORD · 48m · leaves 17:25 75%

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.


American AA 462 LGA 06:30 → ORD United UA 581 ORD 10:54 → DEN Connection details →	2h 40m	8h 15m	98%	94%
Southwest WN 576 LGA 06:30 → MCI United UA 5358 MCI 11:33 → DEN Connection details →	3h 03m	8h 08m	97%	91%
Delta DL 2510 LGA 06:25 → MSP United UA 2232 MSP 11:34 → DEN Connection details →	3h 20m	8h 20m	98%	89%

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