Flight number record
UA 778
United Airlines · Denver to Spokane
- Route
- DEN → GEG
- Departs
- 19:49
- Flights
- 345
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 778, check with United Airlines.
UA 778 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 345 flights, with a median arrival 3 minutes late.
The national on-time rate over the same period is 77.3%, so UA 778 runs 8 points behind the country as a whole. Across a thousand flights that is about 76 extra late arrivals.
Key figures
On time
69.7%
Arrivals under 15 minutes late, of 343 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
0.29%
National rate is 1.89%
1 hour+ late
11.7%
National rate is 8.3%
These figures cover 345 flights between September 2025 and August 2026. Beyond the headline rate, 11.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 778 flies
UA 778 flies DEN to GEG without a single fixed slot. Its most common scheduled departure was 19:49, used on 103 of 345 flights, with 19:40 (94 flights) next.
- Departs 19:49103 flights29.9%
- Departs 19:4094 flights27.2%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 19:49 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and UA 778 runs level with that at 69.7%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
UA 778 next to DEN to GEG
Every carrier on DEN to GEG combined arrived on time 76.3% of the time across 2,042 flights, so UA 778 is 7 points behind it. United flew 826 flights on the same city pair under all its flight numbers, including this one, and those ran 77.6% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 778thin sample | 345 | 69.7% | 71 min | 0.29% | C+ |
| All United Airlines on DEN–GEG | 826 | 77.6% | 63 min | 0.24% | B+ |
| All carriers on DEN–GEG | 2,042 | 76.3% | 53 min | 0.39% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 778 quarter by quarter
UA 778 did not run the same all year. Its best quarter was Jul–Sep 2025 at 83.3% on time and its weakest Jul–Sep 2026 at 52.5%, a swing of 31 points on roughly 69 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights83.3%
- Oct–Dec 202577 flights71.4%
- Jan–Mar 202685 flights78.8%
- Apr–Jun 202691 flights66.7%
- Jul–Sep 202662 flights52.5%
Scale runs 45% to 90%.
By weekday, UA 778 did best on Saturday at 83.7% on time and worst on Friday at 63.3%. Each day rests on about 49 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 778 runs when it is late
The 104 late arrivals split 26 under half an hour, 38 between 30 and 60 minutes, and 40 an hour or more.
- 15+ min early33 flights9.6%
- Within 15 min206 flights60.1%
- 15–29 min late26 flights7.6%
- 30–59 min late38 flights11.1%
- 1–2 hours late24 flights7.0%
- 2+ hours late16 flights4.7%
Scale runs 0% to 100%.
Share of 343 completed flights by arrival against schedule.
20 of 108 late departures made up the time and arrived on time, 19% of them. 16 flights left on time and still arrived late.
The worst days
Worst days for UA 778
The latest arrival of the period was on 21 August 2026, 5 hours 40 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Four of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 21 August 2026 | 5 hours 40 minutes | Late-arriving aircraft |
| 9 July 2026 | 3 hours 57 minutes | Late-arriving aircraft |
| 3 August 2026 | 3 hours 52 minutes | Late-arriving aircraft |
| 13 August 2026 | 3 hours 46 minutes | Late-arriving aircraft |
| 14 August 2026 | 3 hours 41 minutes | Carrier |
Delay causes
Why UA 778 runs late
Late-arriving aircraft accounts for 66% of the 7,365 delay minutes carriers reported here, and the remaining four split what is left.
- 66%Late-arriving aircraft
- 26%Carrier
- 8%National Airspace System
- 0%Extreme weather
66% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,365 reported delay minutes here, that single category outweighs weather by 66 to one. The split is drawn from 7,365 delay minutes reported on UA 778.
Cancellations are rare at 0.29%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
11.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 836 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on four other city pairs in the data, including MEM to DEN (82), PNS to DEN (25) and LGA to DEN (19), but none flew often enough under UA 778 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to GEG only.
One caution: this is a thin sample. 345 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking UA 778
For a booking, UA 778 is one of the weaker ways to fly DEN to GEG: 7 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.
Related
Where to go next
- DEN to GEG, every carrier and departure
- GEG to DEN, the return direction
- United Airlines 295 on the same route83.5%
- Denver International (DEN) delay statistics
- United Airlines on-time record
- Every United Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means United Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.