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 $187 and $102 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 28 - Sat, Oct 31
BOS
Logan Intl.
DEN
Denver Intl.
$187 Roundtrip, found 7 hours ago
$187
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 28 from Logan Intl. to Denver Intl., returning Sat, Oct 31, priced at $187 found 7 hours ago
Wed, Oct 21 - Sat, Oct 24
BOS
Logan Intl.
DEN
Denver Intl.
$194 Roundtrip, found 7 hours ago
$194
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 21 from Logan Intl. to Denver Intl., returning Sat, Oct 24, priced at $194 found 7 hours ago
Wed, Oct 21 - Sat, Oct 24
BOS
Logan Intl.
DEN
Denver Intl.
$199 Roundtrip, found 7 hours ago
$199
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 21 from Logan Intl. to Denver Intl., returning Sat, Oct 24, priced at $199 found 7 hours ago
Fri, Nov 13 - Mon, Nov 23
BOS
Logan Intl.
DEN
Denver Intl.
$203 Roundtrip, found 5 days ago
$203
Roundtrip
found 5 days ago
Select United flight, departing Fri, Nov 13 from Logan Intl. to Denver Intl., returning Mon, Nov 23, priced at $203 found 5 days ago
Fri, Aug 21 - Wed, Aug 26
BOS
Logan Intl.
DEN
Denver Intl.
$207 Roundtrip, just found
$207
Roundtrip
just found
Select United flight, departing Fri, Aug 21 from Logan Intl. to Denver Intl., returning Wed, Aug 26, priced at $207 just found
Sat, Oct 31 - Wed, Nov 4
BOS
Logan Intl.
DEN
Denver Intl.
$209 Roundtrip, found 5 days ago
$209
Roundtrip
found 5 days ago
Select United flight, departing Sat, Oct 31 from Logan Intl. to Denver Intl., returning Wed, Nov 4, priced at $209 found 5 days ago
Wed, Oct 21 - Sat, Oct 24
BOS
Logan Intl.
DEN
Denver Intl.
$211 Roundtrip, found 7 hours ago
$211
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 21 from Logan Intl. to Denver Intl., returning Sat, Oct 24, priced at $211 found 7 hours ago
Fri, Nov 13 - Mon, Nov 23
BOS
Logan Intl.
DEN
Denver Intl.
$213 Roundtrip, found 5 days ago
$213
Roundtrip
found 5 days ago
Select United flight, departing Fri, Nov 13 from Logan Intl. to Denver Intl., returning Mon, Nov 23, priced at $213 found 5 days ago
Wed, Sep 23 - Fri, Sep 25
BOS
Logan Intl.
DEN
Denver Intl.
$215 Roundtrip, found 9 hours ago
$215
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Sep 23 from Logan Intl. to Denver Intl., returning Fri, Sep 25, priced at $215 found 9 hours ago
Fri, Aug 21 - Wed, Aug 26
BOS
Logan Intl.
DEN
Denver Intl.
$216 Roundtrip, just found
$216
Roundtrip
just found
Select United flight, departing Fri, Aug 21 from Logan Intl. to Denver Intl., returning Wed, Aug 26, priced at $216 just found
Fri, Aug 21 - Wed, Aug 26
BOS
Logan Intl.
DEN
Denver Intl.
$220 Roundtrip, just found
$220
Roundtrip
just found
Select United flight, departing Fri, Aug 21 from Logan Intl. to Denver Intl., returning Wed, Aug 26, priced at $220 just found
Tue, Oct 6 - Tue, Oct 20
BOS
Logan Intl.
DEN
Denver Intl.
$224 Roundtrip, found 2 days ago
$224
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 6 from Logan Intl. to Denver Intl., returning Tue, Oct 20, priced at $224 found 2 days 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.