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

The nonstop is quickest: United IAD → ANC (7h 38m), on time 72% of the time. Alaska via Seattle (12h 26m) is more reliable, 83%, but takes 4h 48m longer.

Nonstops (seasonal or thin)


United	IAD	ANC	7h 38m	74%	1.8%	110	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


United Details →	IAD 12:40 → SFO 15:27UA 1434	3h 20m San Francisco	SFO 18:47 → ANC 22:46UA 1594	14h 06m	97%	86%
United Details →	IAD 08:40 → IAH 10:59UA 1524	3h 21m Houston	IAH 14:20 → ANC 18:41UA 2369	14h 01m	99%	86%
United + Alaskatwo ticketsDetails →	IAD 17:55 → SEA 20:46UA 326	3h 13m Seattle	SEA 23:59 → ANC 02:40 +1AS 1363	12h 45m	96%	83%
United + Alaskatwo ticketsDetails →	IAD 09:00 → SEA 11:51UA 2101	2h 56m Seattle	SEA 14:47 → ANC 17:26AS 660	12h 26m	100%	82%
United Details →	IAD 06:10 → ORD 07:27UA 2070	1h 37m Chicago	ORD 09:04 → ANC 12:56UA 840	10h 46m	95%	81%
United Details →	IAD 10:13 → DEN 12:05UA 1865	3h 30m Denver	DEN 15:35 → ANC 19:12UA 1592	12h 59m	99%	80%
United + Alaskatwo ticketsDetails →	IAD 13:10 → LAX 15:42UA 1689	3h 49m Los Angeles	LAX 19:31 → ANC 23:55AS 1899	14h 45m	99%	80%
United Details →	IAD 06:30 → DEN 08:22UA 2031	2h 58m Denver	DEN 11:20 → ANC 14:53UA 280	12h 23m	100%	79%
Tight connection: often missed
Delta Details →	IAD 07:00 → SEA 09:45DL 1015	50m Seattle	SEA 10:35 → ANC 13:15DL 922	10h 15m	67%	52%
Delta Details →	IAD 12:37 → ATL 14:34DL 1444	46m Atlanta	ATL 15:20 → ANC 18:45DL 416	10h 08m	71%	45%
Alaska Details →	IAD 18:14 → SEA 21:09AS 737	48m Seattle	SEA 21:57 → ANC 00:41 +1AS 1560	10h 27m	43%	30%

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

MSP · 55m · leaves 06:00 12%

SEA · 50m · leaves 07:00 33%

Afternoon and evening

SFO · 1h 09m · leaves 14:51 15%

SEA · 48m · leaves 18:14 57%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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