United Flight 1866 Deals & Information (2025/2026)

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United Flight 1866 Route Deals From $82

The cheapest prices found with in the last 7 days for return flights were $131 and $82 for one-way flights to Orlando Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jul 30 - Sun, Aug 3
ORD
O'Hare Intl.
MCO
Orlando Intl.
$131 Roundtrip, just found
$131
Roundtrip
just found
Select United flight, departing Wed, Jul 30 from O'Hare Intl. to Orlando Intl., returning Sun, Aug 3, priced at $131 just found
Mon, Jul 28 - Wed, Jul 30
ORD
O'Hare Intl.
MCO
Orlando Intl.
$137 Roundtrip, found 9 hours ago
$137
Roundtrip
found 9 hours ago
Select United flight, departing Mon, Jul 28 from O'Hare Intl. to Orlando Intl., returning Wed, Jul 30, priced at $137 found 9 hours ago
Sat, Aug 16 - Sat, Aug 23
ORD
O'Hare Intl.
MCO
Orlando Intl.
$157 Roundtrip, found 4 hours ago
$157
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Aug 16 from O'Hare Intl. to Orlando Intl., returning Sat, Aug 23, priced at $157 found 4 hours ago

Frequently asked questions

What route does flight number UA1866 take?
Flight number UA1866 flies straight from Denver, CO Airport (DEN-Denver Intl.) to PHX. During this trip, you'll be in the air for 1 hour and 54 minutes. Book ahead to lock in your favorite seat.
How often is UA1866 on time?
About 81% of UA1866 flights head off on time --- so if you're traveling between Denver, CO Airport (DEN-Denver Intl.) and Sky Harbor Intl. Airport (PHX), you can breathe easy knowing that you'll reach your destination as quickly as possible. If this United Airlines flight runs behind time, the average wait is approximately 19 minutes. Thanks to the carrier's first-rate service, this route has a star rating of 2.75.
What kind of plane is on flight number UA1866?
Expect to hop on board a Boeing 737 MAX 9 if you're traveling on flight UA1866. Nearly all services from DIA airport to Phoenix Sky Harbor Intl. Airport are operated using this aircraft type.
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 UA1866 flight with Travelocity, please visit our Customer Service Portal.