United Flight 337 Deals & Information (2026/2027)

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United Flight 337 Route Deals From $219

The cheapest prices found with in the last 7 days for return flights were $199 and $219 for one-way flights to Great Falls Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Mar 14 - Tue, Mar 17
DEN
Denver Intl.
GTF
Great Falls Intl.
$199 Roundtrip, found 6 hours ago
$199
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Mar 14 from Denver Intl. to Great Falls Intl., returning Tue, Mar 17, priced at $199 found 6 hours ago
Thu, Mar 5 - Tue, Mar 10
DEN
Denver Intl.
GTF
Great Falls Intl.
$204 Roundtrip, found 1 day ago
$204
Roundtrip
found 1 day ago
Select United flight, departing Thu, Mar 5 from Denver Intl. to Great Falls Intl., returning Tue, Mar 10, priced at $204 found 1 day ago
Fri, May 15 - Mon, May 18
DEN
Denver Intl.
GTF
Great Falls Intl.
$211 Roundtrip, found 4 days ago
$211
Roundtrip
found 4 days ago
Select United flight, departing Fri, May 15 from Denver Intl. to Great Falls Intl., returning Mon, May 18, priced at $211 found 4 days ago
Sat, Mar 14 - Tue, Mar 17
DEN
Denver Intl.
GTF
Great Falls Intl.
$269 Roundtrip, found 6 hours ago
$269
Roundtrip
found 6 hours ago
Select United flight, departing Sat, Mar 14 from Denver Intl. to Great Falls Intl., returning Tue, Mar 17, priced at $269 found 6 hours ago
Thu, Mar 5 - Tue, Mar 10
DEN
Denver Intl.
GTF
Great Falls Intl.
$276 Roundtrip, found 1 day ago
$276
Roundtrip
found 1 day ago
Select United flight, departing Thu, Mar 5 from Denver Intl. to Great Falls Intl., returning Tue, Mar 10, priced at $276 found 1 day ago
Fri, May 15 - Mon, May 18
DEN
Denver Intl.
GTF
Great Falls Intl.
$282 Roundtrip, found 4 days ago
$282
Roundtrip
found 4 days ago
Select United flight, departing Fri, May 15 from Denver Intl. to Great Falls Intl., returning Mon, May 18, priced at $282 found 4 days ago
Fri, Jan 30 - Thu, Feb 5
DEN
Denver Intl.
GTF
Great Falls Intl.
$286 Roundtrip, found 4 days ago
$286
Roundtrip
found 4 days ago
Select United flight, departing Fri, Jan 30 from Denver Intl. to Great Falls Intl., returning Thu, Feb 5, priced at $286 found 4 days ago

Frequently asked questions

What route does flight number UA337 take?
UA337 flies straight from Denver, CO Airport (DEN-Denver Intl.) to Dallas-Fort Worth Intl. Airport (DFW). During this journey, you'll be in the air for about 1 hour and 52 minutes. It's wise to book ahead to get your favorite seat.
What kind of plane is on flight number UA337?
The route for UA337 is usually DIA airport to Dallas-Fort Worth Intl. Airport (DFW), and the Boeing 737-900 is the aircraft model you'll probably be flying with.
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 UA337 flight with Travelocity, please visit our Customer Service Portal.