United Flight 800 Deals & Information (2026/2027)

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United Flight 800 Route Deals From $102

The cheapest prices found with in the last 7 days for return flights were $201 and $102 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 15 - Tue, Sep 22
BOS
Logan Intl.
DEN
Denver Intl.
$201 Roundtrip, found 3 hours ago
$201
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Sep 15 from Logan Intl. to Denver Intl., returning Tue, Sep 22, priced at $201 found 3 hours ago
Tue, Sep 15 - Tue, Sep 22
BOS
Logan Intl.
DEN
Denver Intl.
$211 Roundtrip, found 3 hours ago
$211
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Sep 15 from Logan Intl. to Denver Intl., returning Tue, Sep 22, priced at $211 found 3 hours ago
Tue, Jul 28 - Wed, Aug 5
BOS
Logan Intl.
DEN
Denver Intl.
$216 Roundtrip, just found
$216
Roundtrip
just found
Select United flight, departing Tue, Jul 28 from Logan Intl. to Denver Intl., returning Wed, Aug 5, priced at $216 just found
Tue, Sep 1 - Tue, Sep 8
BOS
Logan Intl.
DEN
Denver Intl.
$221 Roundtrip, found 1 day ago
$221
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 1 from Logan Intl. to Denver Intl., returning Tue, Sep 8, priced at $221 found 1 day ago
Wed, Sep 2 - Tue, Sep 8
BOS
Logan Intl.
DEN
Denver Intl.
$241 Roundtrip, found 6 hours ago
$241
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Sep 2 from Logan Intl. to Denver Intl., returning Tue, Sep 8, priced at $241 found 6 hours ago
Tue, Jul 28 - Wed, Aug 5
BOS
Logan Intl.
DEN
Denver Intl.
$247 Roundtrip, just found
$247
Roundtrip
just found
Select United flight, departing Tue, Jul 28 from Logan Intl. to Denver Intl., returning Wed, Aug 5, priced at $247 just found
Wed, Nov 11 - Mon, Nov 16
BOS
Logan Intl.
DEN
Denver Intl.
$248 Roundtrip, found 8 hours ago
$248
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Nov 11 from Logan Intl. to Denver Intl., returning Mon, Nov 16, priced at $248 found 8 hours ago
Tue, Sep 1 - Tue, Sep 8
BOS
Logan Intl.
DEN
Denver Intl.
$250 Roundtrip, found 1 day ago
$250
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 1 from Logan Intl. to Denver Intl., returning Tue, Sep 8, priced at $250 found 1 day 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.