United Flight AC3456 Deals & Information (2025/2026)

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 3456 Route Deals From $129

The cheapest prices found with in the last 7 days for return flights were $203 and $129 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

What route does flight number UA3456 take?
UA3456 is used on a range of routes. Mostly, UA3456 flies straight from Washington Dulles Intl. Airport (IAD) to MYR. If that's your flight path, you'll be flying for about 1 hour and 29 minutes.
What kind of plane is on flight number UA3456?
It's likely you'll be taking off on an Embraer 175 if you've booked a seat from IAD to Myrtle Beach Intl. Airport (MYR), one of a few routes used for flight UA3456.
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 UA3456 flight with Travelocity, please visit our Customer Service Portal.