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United Flight 400 Route Deals From $119

The cheapest prices found with in the last 7 days for return flights were $239 and $119 for one-way flights to Los Angeles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

More United Flight For This Route

Carrier Flight Depart IAD Arrive LAX Tue
9/29
Wed
9/30
Thu
10/1
Fri
10/2
Sat
10/3
Sun
10/4
Mon
10/5
Stops
UA 400 10:30 am 01:00 pm Check fare Check fare - - - - - 0 stop(s)
UA 719 06:05 pm 08:22 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
UA 632 10:30 am 01:00 pm - - Check fare Check fare Check fare Check fare Check fare 0 stop(s)

FAQs about UA400

What route does flight number UA400 take?

UA400 flies straight from San Antonio, TX (SAT-San Antonio Intl.) to Washington, DC (IAD-Washington Dulles Intl.) in about 3 hours and 19 minutes. It can be used on other routes though, some of which may be multi-stop trips. Keep an eye out for this when booking your seat to avoid any confusion.

How often is UA400 on time?

If you're taking to the skies on United Airlines flight number UA400 from Washington, DC (IAD-Washington Dulles Intl.) to Raleigh, NC (RDU-Raleigh - Durham Intl.), leave some buffer room in your travel plans — these flights arrive on time 76% of the time. If it happens to be delayed, you can expect to wait roughly 20 minutes. This is the most popular route for your flight, and it has a 2.5-star rating.

What kind of plane is on flight number UA400?

UA400 is a flight number that serves many different routes. If you're traveling on the most popular route, Washington, DC (IAD-Washington Dulles Intl.) to Raleigh, NC (RDU-Raleigh - Durham Intl.), there's every chance you'll be hopping aboard the Airbus A319.