United Flight 800 Deals & Information (2026/2027)

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United Flight 800 Route Deals From $118

The cheapest prices found with in the last 7 days for return flights were $191 and $118 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 7 - Tue, Oct 13
BOS
Logan Intl.
DEN
Denver Intl.
$191 Roundtrip, found 10 hours ago
$191
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Oct 7 from Logan Intl. to Denver Intl., returning Tue, Oct 13, priced at $191 found 10 hours ago
Wed, May 27 - Tue, Jun 2
BOS
Logan Intl.
DEN
Denver Intl.
$196 Roundtrip, found 9 hours ago
$196
Roundtrip
found 9 hours ago
Select United flight, departing Wed, May 27 from Logan Intl. to Denver Intl., returning Tue, Jun 2, priced at $196 found 9 hours ago
Tue, Dec 8 - Tue, Dec 15
BOS
Logan Intl.
DEN
Denver Intl.
$202 Roundtrip, found 1 day ago
$202
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 8 from Logan Intl. to Denver Intl., returning Tue, Dec 15, priced at $202 found 1 day ago
Tue, Sep 1 - Wed, Sep 2
BOS
Logan Intl.
DEN
Denver Intl.
$206 Roundtrip, found 2 days ago
$206
Roundtrip
found 2 days ago
Select United flight, departing Tue, Sep 1 from Logan Intl. to Denver Intl., returning Wed, Sep 2, priced at $206 found 2 days ago
Wed, May 27 - Tue, Jun 2
BOS
Logan Intl.
DEN
Denver Intl.
$212 Roundtrip, found 9 hours ago
$212
Roundtrip
found 9 hours ago
Select United flight, departing Wed, May 27 from Logan Intl. to Denver Intl., returning Tue, Jun 2, priced at $212 found 9 hours ago
Wed, May 20 - Tue, Jun 2
BOS
Logan Intl.
DEN
Denver Intl.
$215 Roundtrip, found 8 hours ago
$215
Roundtrip
found 8 hours ago
Select United flight, departing Wed, May 20 from Logan Intl. to Denver Intl., returning Tue, Jun 2, priced at $215 found 8 hours ago
Wed, May 27 - Tue, Jun 2
BOS
Logan Intl.
DEN
Denver Intl.
$230 Roundtrip, found 9 hours ago
$230
Roundtrip
found 9 hours ago
Select United flight, departing Wed, May 27 from Logan Intl. to Denver Intl., returning Tue, Jun 2, priced at $230 found 9 hours ago
Wed, May 27 - Tue, Jun 2
BOS
Logan Intl.
DEN
Denver Intl.
$238 Roundtrip, found 9 hours ago
$238
Roundtrip
found 9 hours ago
Select United flight, departing Wed, May 27 from Logan Intl. to Denver Intl., returning Tue, Jun 2, priced at $238 found 9 hours ago

Frequently asked questions

What route does flight number UA800 take?
You'll be landing at O'Hare Intl. Airport (ORD) from Charleston Intl. Airport if you're traveling on flight number UA800. You'll be in the air for 2 hours and 28 minutes during this trip. It's also good to note that the flight conveniently operates non-stop.
What kind of plane is on flight number UA800?
Expect to cruise aboard an Airbus A319 if you're taking off on flight UA800. Most services from Charleston, SC Airport (CHS-Charleston Intl.) to O'Hare Intl. Airport (ORD) operate using this kind of aircraft.
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 UA800 flight with Travelocity, please visit our Customer Service Portal.