United Flight 377 Deals & Information (2025/2026)

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United Flight 377 Route Deals From $79

The cheapest prices found with in the last 7 days for return flights were $157 and $79 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 1 - Wed, Oct 8
DEN
Denver Intl.
ORD
O'Hare Intl.
$157 Roundtrip, just found
$157
Roundtrip
just found
Select United flight, departing Wed, Oct 1 from Denver Intl. to O'Hare Intl., returning Wed, Oct 8, priced at $157 just found
Wed, Oct 1 - Wed, Oct 8
DEN
Denver Intl.
ORD
O'Hare Intl.
$169 Roundtrip, just found
$169
Roundtrip
just found
Select United flight, departing Wed, Oct 1 from Denver Intl. to O'Hare Intl., returning Wed, Oct 8, priced at $169 just found
Tue, Aug 12 - Wed, Aug 13
DEN
Denver Intl.
ORD
O'Hare Intl.
$170 Roundtrip, found 1 day ago
$170
Roundtrip
found 1 day ago
Select United flight, departing Tue, Aug 12 from Denver Intl. to O'Hare Intl., returning Wed, Aug 13, priced at $170 found 1 day ago
Sat, Oct 11 - Tue, Oct 14
DEN
Denver Intl.
ORD
O'Hare Intl.
$172 Roundtrip, found 12 hours ago
$172
Roundtrip
found 12 hours ago
Select United flight, departing Sat, Oct 11 from Denver Intl. to O'Hare Intl., returning Tue, Oct 14, priced at $172 found 12 hours ago
Sat, Sep 20 - Mon, Sep 22
DEN
Denver Intl.
ORD
O'Hare Intl.
$173 Roundtrip, found 3 hours ago
$173
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Sep 20 from Denver Intl. to O'Hare Intl., returning Mon, Sep 22, priced at $173 found 3 hours ago
Sat, Sep 20 - Mon, Sep 22
DEN
Denver Intl.
ORD
O'Hare Intl.
$175 Roundtrip, found 3 hours ago
$175
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Sep 20 from Denver Intl. to O'Hare Intl., returning Mon, Sep 22, priced at $175 found 3 hours ago
Fri, Aug 15 - Tue, Aug 26
DEN
Denver Intl.
ORD
O'Hare Intl.
$180 Roundtrip, found 5 hours ago
$180
Roundtrip
found 5 hours ago
Select United flight, departing Fri, Aug 15 from Denver Intl. to O'Hare Intl., returning Tue, Aug 26, priced at $180 found 5 hours ago
Fri, Aug 15 - Tue, Aug 26
DEN
Denver Intl.
ORD
O'Hare Intl.
$182 Roundtrip, found 5 hours ago
$182
Roundtrip
found 5 hours ago
Select United flight, departing Fri, Aug 15 from Denver Intl. to O'Hare Intl., returning Tue, Aug 26, priced at $182 found 5 hours ago

Frequently asked questions

What route does flight number UA377 take?
UA377 flies direct from DIA airport to O'Hare Airport in around 2 hours and 23 minutes. It can take other routes though, some of which may be multi-stop journeys. Keep this in mind when locking in your seat to avoid any confusion.
What kind of plane is on flight number UA377?
If you're on flight UA377 from Denver Intl. Airport (DEN) to ORD, you'll likely be heading off on the Boeing 737-900. This flight number serves several routes, but this is the most popular.
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 UA377 flight with Travelocity, please visit our Customer Service Portal.