United Flight 320 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 320 Route Deals From $80

The cheapest prices found with in the last 7 days for return flights were $157 and $80 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Oct 16 - Tue, Oct 21
DEN
Denver Intl.
IAH
George Bush Intercontinental
$157 Roundtrip, just found
$157
Roundtrip
just found
Select United flight, departing Thu, Oct 16 from Denver Intl. to George Bush Intercontinental, returning Tue, Oct 21, priced at $157 just found
Thu, Oct 16 - Tue, Oct 21
DEN
Denver Intl.
IAH
George Bush Intercontinental
$167 Roundtrip, just found
$167
Roundtrip
just found
Select United flight, departing Thu, Oct 16 from Denver Intl. to George Bush Intercontinental, returning Tue, Oct 21, priced at $167 just found
Thu, Oct 16 - Tue, Oct 21
DEN
Denver Intl.
IAH
George Bush Intercontinental
$173 Roundtrip, just found
$173
Roundtrip
just found
Select United flight, departing Thu, Oct 16 from Denver Intl. to George Bush Intercontinental, returning Tue, Oct 21, priced at $173 just found
Thu, Oct 16 - Tue, Oct 21
DEN
Denver Intl.
IAH
George Bush Intercontinental
$174 Roundtrip, just found
$174
Roundtrip
just found
Select United flight, departing Thu, Oct 16 from Denver Intl. to George Bush Intercontinental, returning Tue, Oct 21, priced at $174 just found
Tue, Sep 30 - Sat, Oct 4
DEN
Denver Intl.
IAH
George Bush Intercontinental
$179 Roundtrip, found 3 days ago
$179
Roundtrip
found 3 days ago
Select United flight, departing Tue, Sep 30 from Denver Intl. to George Bush Intercontinental, returning Sat, Oct 4, priced at $179 found 3 days ago
Tue, Aug 5 - Tue, Aug 12
DEN
Denver Intl.
IAH
George Bush Intercontinental
$180 Roundtrip, found 1 hour ago
$180
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Aug 5 from Denver Intl. to George Bush Intercontinental, returning Tue, Aug 12, priced at $180 found 1 hour ago
Thu, Oct 16 - Tue, Oct 21
DEN
Denver Intl.
IAH
George Bush Intercontinental
$183 Roundtrip, just found
$183
Roundtrip
just found
Select United flight, departing Thu, Oct 16 from Denver Intl. to George Bush Intercontinental, returning Tue, Oct 21, priced at $183 just found
Wed, Aug 6 - Wed, Aug 13
DEN
Denver Intl.
IAH
George Bush Intercontinental
$191 Roundtrip, found 1 hour ago
$191
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Aug 6 from Denver Intl. to George Bush Intercontinental, returning Wed, Aug 13, priced at $191 found 1 hour ago

Frequently asked questions

What route does flight number UA320 take?
UA320 flies direct from DIA airport to Logan Intl. Airport (BOS) in about 3 hours and 50 minutes. It can be used on other routes though, some of which could be multi-stop flights. Keep this in mind when locking in your airfare to avoid any mix-ups.
What kind of plane is on flight number UA320?
Chances are you'll be aboard the Airbus A319 if you're going from DEN to Boston, MA Airport (BOS-Logan Intl.), a popular route for flight number UA320.
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 UA320 flight with Travelocity, please visit our Customer Service Portal.