United Flight 543 Deals & Information (2025/2026)

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United Flight 543 Route Deals From $150

The cheapest prices found with in the last 7 days for return flights were $297 and $150 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Aug 28 - Tue, Sep 2
BOS
Logan Intl.
IAH
George Bush Intercontinental
$297 Roundtrip, found 5 hours ago
$297
Roundtrip
found 5 hours ago
Select United flight, departing Thu, Aug 28 from Logan Intl. to George Bush Intercontinental, returning Tue, Sep 2, priced at $297 found 5 hours ago

Frequently asked questions

What route does flight number UA543 take?
UA543 is used on multiple routes. Mostly, UA543 flies straight from ORD to Northwest Florida Beaches Intl. Airport (ECP). If that's your chosen flight path, you'll be in the air for about 2 hours and 3 minutes.
What terminal does UA543 fly out of?
Terminal 1 is where you'll most likely board from if you're booked on a flight from O'Hare Intl. Airport (ORD). ORD to Northwest Florida Beaches Intl. Airport is the most frequently traveled route for flight number UA543.
What kind of plane is on flight number UA543?
If you're taking flight UA543 from Chicago, IL Airport (ORD-O'Hare Intl.) to ECP, you'll most likely be traveling aboard an Airbus A319. This flight number serves multiple routes, but this is the most popular one.
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 UA543 flight with Travelocity, please visit our Customer Service Portal.