United Flight 642 Deals & Information (2025/2026)

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United Flight 642 Route Deals From $79

The cheapest prices found with in the last 7 days for return flights were $148 and $79 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 27 - Wed, Oct 1
CHS
Charleston Intl.
EWR
Newark Liberty Intl. Airport
$148 Roundtrip, found 1 day ago
$148
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 27 from Charleston Intl. to Newark Liberty Intl. Airport, returning Wed, Oct 1, priced at $148 found 1 day ago

Frequently asked questions

What route does flight number UA642 take?
UA642 serves multiple routes, but the most common is between SMF and Washington Dulles Intl. Airport (IAD). If your flight goes direct, you'll touch down in around 5 hours and 1 minute. Multi-stop flights can also use the same number, as can flights on other routes.
What terminal does UA642 fly out of?
UA642 flights out of SMF generally jet off from Terminal A. This flight number runs on a number of different routes, but the most popular is SMF to Washington Dulles Intl. Airport (IAD).
What kind of plane is on flight number UA642?
It's possible you'll be setting off on the Boeing 737-900 if you're traveling from Sacramento Intl. Airport (SMF) to Dulles Intl. Airport, a common route for flight number UA642.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA642 flight with Travelocity, please visit our Customer Service Portal.