Delta Flight 3901 Deals & Information (2026/2027)

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

Delta Flight 3901 Route Deals From $204

The cheapest prices found with in the last 7 days for return flights were $259 and $204 for one-way flights to Salt Lake City Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Mar 16 - Sat, Mar 21
HLN
Helena Regional
SLC
Salt Lake City Intl.
$259 Roundtrip, found 5 days ago
$259
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Mar 16 from Helena Regional to Salt Lake City Intl., returning Sat, Mar 21, priced at $259 found 5 days ago
Fri, Feb 13 - Thu, Feb 19
HLN
Helena Regional
SLC
Salt Lake City Intl.
$263 Roundtrip, found 1 day ago
$263
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Feb 13 from Helena Regional to Salt Lake City Intl., returning Thu, Feb 19, priced at $263 found 1 day ago
Sat, Feb 14 - Tue, Feb 17
HLN
Helena Regional
SLC
Salt Lake City Intl.
$266 Roundtrip, found 1 day ago
$266
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Feb 14 from Helena Regional to Salt Lake City Intl., returning Tue, Feb 17, priced at $266 found 1 day ago
Sun, Jan 18 - Sat, Jan 24
HLN
Helena Regional
SLC
Salt Lake City Intl.
$299 Roundtrip, found 5 days ago
$299
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, Jan 18 from Helena Regional to Salt Lake City Intl., returning Sat, Jan 24, priced at $299 found 5 days ago
Tue, Jan 20 - Sat, Jan 24
HLN
Helena Regional
SLC
Salt Lake City Intl.
$303 Roundtrip, found 5 days ago
$303
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Jan 20 from Helena Regional to Salt Lake City Intl., returning Sat, Jan 24, priced at $303 found 5 days ago
Mon, Mar 16 - Sun, Mar 22
HLN
Helena Regional
SLC
Salt Lake City Intl.
$309 Roundtrip, found 5 days ago
$309
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Mar 16 from Helena Regional to Salt Lake City Intl., returning Sun, Mar 22, priced at $309 found 5 days ago
Fri, Mar 20 - Sun, Mar 22
HLN
Helena Regional
SLC
Salt Lake City Intl.
$319 Roundtrip, found 5 days ago
$319
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, Mar 20 from Helena Regional to Salt Lake City Intl., returning Sun, Mar 22, priced at $319 found 5 days ago
Sat, Jan 17 - Sun, Jan 18
HLN
Helena Regional
SLC
Salt Lake City Intl.
$327 Roundtrip, found 5 days ago
$327
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Jan 17 from Helena Regional to Salt Lake City Intl., returning Sun, Jan 18, priced at $327 found 5 days ago
Wed, Jan 14 - Wed, Jan 21
HLN
Helena Regional
SLC
Salt Lake City Intl.
$339 Roundtrip, found 4 days ago
$339
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Jan 14 from Helena Regional to Salt Lake City Intl., returning Wed, Jan 21, priced at $339 found 4 days ago
Thu, Jan 15 - Tue, Jan 20
HLN
Helena Regional
SLC
Salt Lake City Intl.
$344 Roundtrip, found 4 days ago
$344
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Jan 15 from Helena Regional to Salt Lake City Intl., returning Tue, Jan 20, priced at $344 found 4 days ago
Thu, Jan 15 - Sun, Jan 18
HLN
Helena Regional
SLC
Salt Lake City Intl.
$364 Roundtrip, found 4 days ago
$364
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Jan 15 from Helena Regional to Salt Lake City Intl., returning Sun, Jan 18, priced at $364 found 4 days ago
Fri, Jan 9 - Sat, Jan 17
HLN
Helena Regional
SLC
Salt Lake City Intl.
$369 Roundtrip, found 16 hours ago
$369
Roundtrip
found 16 hours ago
Select Delta flight, departing Fri, Jan 9 from Helena Regional to Salt Lake City Intl., returning Sat, Jan 17, priced at $369 found 16 hours ago
Mon, Jan 12 - Sat, Jan 17
HLN
Helena Regional
SLC
Salt Lake City Intl.
$380 Roundtrip, found 16 hours ago
$380
Roundtrip
found 16 hours ago
Select Delta flight, departing Mon, Jan 12 from Helena Regional to Salt Lake City Intl., returning Sat, Jan 17, priced at $380 found 16 hours ago

Frequently asked questions

What route does flight number DL3901 take?
DL3901 travels between SMF and LAX and is a direct flight. This journey usually takes 1 hour and 28 minutes.
What terminal does DL3901 fly out of?
Direct flights to and from Sacramento, CA Airport (SMF-Sacramento Intl.) and Los Angeles Intl. Airport (LAX) are served by DL3901, and passengers who travel on this flight typically board from Terminal A.
What kind of plane is on flight number DL3901?
Get set to board an Embraer 175 if you're booked on flight DL3901. Almost all flights from Sacramento, CA Airport (SMF-Sacramento Intl.) to Los Angeles Intl. Airport (LAX) use this model 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 DL3901 flight with Travelocity, please visit our Customer Service Portal.