| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 29 | SEA | EWR | 16:22 | 23:55 |
Landed Late
|
Track > |
United Airlines Flight UA3878 connects Seattle, United States to New York, United States, taking off from Seattle Tacoma International Airport SEA and landing at New York Newark Liberty International Airport EWR.
How long is the UA3878 flight from Seattle to New York?
The average flight time from Seattle to New York is 4 hours and 33 minutes. The flight distance is 3855 km / 2395 miles and the average flight speed is 847 km/h / 526 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA3878 Seattle to New York?
The Airportia On-Time Performance Rating for United Airlines Flight UA3878 is 4.5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA3878 arriving at?
Flight UA3878 arrives at New York Newark Liberty International Airport (EWR) Terminal C.
When was the latest UA3878 flight?
The latest flight took off on Sunday, August 30th, 2026 with the flight status being Landed on 23:55.
How else can the flight UA3878 be referenced as?
This United Airlines flight can also be referenced as UAL3878, UA 3878, UAL 3878.
How often is flight UA3878 delayed?
On average, 100% of all UA3878 flights are delayed. The average delay is 33 minutes.
Can I get compensation for my delayed or cancelled UA3878 flight or baggage issues?
If your UA3878 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our UA3878 Flight Tracker above for more details.
Other flights departing from Seattle SEA: WN3601, AS793, WN139, WN1034
Other flights arriving at New York EWR: UA2029, DM5382, UA2861, UA2823
All flights connecting Seattle SEA to New York EWR.