United Flight ET509 Deals & Information (2025/2026)

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United Flight 509 Route Deals From

The cheapest prices found with in the last 7 days for return flights were $3,825 and for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jun 22 - Mon, Jun 30
FCO
Fiumicino - Leonardo da Vinci Intl.
EWR
Newark Liberty Intl. Airport
$3,825 Roundtrip, found 5 days ago
$3,825
Roundtrip
found 5 days ago
Select United flight, departing Sun, Jun 22 from Fiumicino - Leonardo da Vinci Intl. to Newark Liberty Intl. Airport, returning Mon, Jun 30, priced at $3,825 found 5 days ago

Frequently asked questions

What route does flight number UA509 take?
UA509 takes a few routes. The most popular is between O'Hare Airport and AUS, which is a direct flight. This service generally takes 2 hours and 39 minutes. That said, you might find other flights with the same number that are multi-stop.
What terminal does UA509 fly out of?
UA509 flights from Chicago, IL Airport (ORD-O'Hare Intl.) normally jet off from Terminal 1. This flight number runs on several different routes, but the most traveled one is Chicago, IL Airport (ORD-O'Hare Intl.) to Austin, TX Airport (AUS-Austin-Bergstrom Intl.).
What kind of plane is on flight number UA509?
UA509 is a flight number that serves a number of different routes. If you're heading off on the most popular one, O'Hare Intl. Airport (ORD) to Austin-Bergstrom Intl. Airport (AUS), chances are you'll be climbing on board the Airbus A319.
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 UA509 flight with Travelocity, please visit our Customer Service Portal.