United Flight UA320 Deals & Information (2025/2026)

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United Flight 320 Route Deals From $113

The cheapest prices found with in the last 7 days for return flights were $144 and $113 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 3 - Tue, May 6
DEN
Denver Intl.
IAH
George Bush Intercontinental
$144 Roundtrip, found 3 hours ago
$144
Roundtrip
found 3 hours ago
Select United flight, departing Sat, May 3 from Denver Intl. to George Bush Intercontinental, returning Tue, May 6, priced at $144 found 3 hours ago
Sat, May 3 - Tue, May 6
DEN
Denver Intl.
IAH
George Bush Intercontinental
$164 Roundtrip, found 3 hours ago
$164
Roundtrip
found 3 hours ago
Select United flight, departing Sat, May 3 from Denver Intl. to George Bush Intercontinental, returning Tue, May 6, priced at $164 found 3 hours ago
Tue, Apr 29 - Tue, May 13
DEN
Denver Intl.
IAH
George Bush Intercontinental
$166 Roundtrip, found 4 hours ago
$166
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Apr 29 from Denver Intl. to George Bush Intercontinental, returning Tue, May 13, priced at $166 found 4 hours ago
Sat, May 17 - Wed, May 21
DEN
Denver Intl.
IAH
George Bush Intercontinental
$177 Roundtrip, found 3 days ago
$177
Roundtrip
found 3 days ago
Select United flight, departing Sat, May 17 from Denver Intl. to George Bush Intercontinental, returning Wed, May 21, priced at $177 found 3 days 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.